From 19d7ca2998e095086869318dd2ad966952f5ac82 Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Fri, 18 Nov 2011 16:32:34 +0900 Subject: sh: fix build warning in board-sh7757lcr MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch fixed the following build warnings: CC arch/sh/boards/board-sh7757lcr.o arch/sh/boards/board-sh7757lcr.c:77: warning: initialization from incompatible pointer type arch/sh/boards/board-sh7757lcr.c:106: warning: initialization from incompatible pointer type arch/sh/boards/board-sh7757lcr.c:151: warning: initialization from incompatible pointer type arch/sh/boards/board-sh7757lcr.c:181: warning: initialization from incompatible pointer type arch/sh/boards/board-sh7757lcr.c:213: warning: missing braces around initializer arch/sh/boards/board-sh7757lcr.c:213: warning: (near initialization for ‘sh7757lcr_mmcif_dma.chan_priv_tx’) Signed-off-by: Yoshihiro Shimoda Signed-off-by: Paul Mundt --- arch/sh/boards/board-sh7757lcr.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/arch/sh/boards/board-sh7757lcr.c b/arch/sh/boards/board-sh7757lcr.c index ec8c84c14b1..895e337c79b 100644 --- a/arch/sh/boards/board-sh7757lcr.c +++ b/arch/sh/boards/board-sh7757lcr.c @@ -50,9 +50,9 @@ static struct platform_device heartbeat_device = { #define GBECONT 0xffc10100 #define GBECONT_RMII1 BIT(17) #define GBECONT_RMII0 BIT(16) -static void sh7757_eth_set_mdio_gate(unsigned long addr) +static void sh7757_eth_set_mdio_gate(void *addr) { - if ((addr & 0x00000fff) < 0x0800) + if (((unsigned long)addr & 0x00000fff) < 0x0800) writel(readl(GBECONT) | GBECONT_RMII0, GBECONT); else writel(readl(GBECONT) | GBECONT_RMII1, GBECONT); @@ -116,9 +116,9 @@ static struct platform_device sh7757_eth1_device = { }, }; -static void sh7757_eth_giga_set_mdio_gate(unsigned long addr) +static void sh7757_eth_giga_set_mdio_gate(void *addr) { - if ((addr & 0x00000fff) < 0x0800) { + if (((unsigned long)addr & 0x00000fff) < 0x0800) { gpio_set_value(GPIO_PTT4, 1); writel(readl(GBECONT) & ~GBECONT_RMII0, GBECONT); } else { @@ -210,8 +210,12 @@ static struct resource sh_mmcif_resources[] = { }; static struct sh_mmcif_dma sh7757lcr_mmcif_dma = { - .chan_priv_tx = SHDMA_SLAVE_MMCIF_TX, - .chan_priv_rx = SHDMA_SLAVE_MMCIF_RX, + .chan_priv_tx = { + .slave_id = SHDMA_SLAVE_MMCIF_TX, + }, + .chan_priv_rx = { + .slave_id = SHDMA_SLAVE_MMCIF_RX, + } }; static struct sh_mmcif_plat_data sh_mmcif_plat = { -- cgit v1.2.3 From 2ac654f740b574c58ee02bac3816cf466a1bfb41 Mon Sep 17 00:00:00 2001 From: Bing Zhao Date: Wed, 16 Nov 2011 20:40:42 -0800 Subject: Bluetooth: btmrvl: support Marvell Bluetooth device SD8797 The SD8797 firmware image is shared with mwifiex driver. Whoever gets loaded first will be responsible for firmware downloading. Signed-off-by: Bing Zhao Signed-off-by: Frank Huang Signed-off-by: Gustavo F. Padovan --- drivers/bluetooth/Kconfig | 6 +++--- drivers/bluetooth/btmrvl_sdio.c | 15 +++++++++++++-- 2 files changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig index 11b41fd40c2..5ccf142ef0b 100644 --- a/drivers/bluetooth/Kconfig +++ b/drivers/bluetooth/Kconfig @@ -188,7 +188,7 @@ config BT_MRVL The core driver to support Marvell Bluetooth devices. This driver is required if you want to support - Marvell Bluetooth devices, such as 8688/8787. + Marvell Bluetooth devices, such as 8688/8787/8797. Say Y here to compile Marvell Bluetooth driver into the kernel or say M to compile it as module. @@ -201,8 +201,8 @@ config BT_MRVL_SDIO The driver for Marvell Bluetooth chipsets with SDIO interface. This driver is required if you want to use Marvell Bluetooth - devices with SDIO interface. Currently SD8688/SD8787 chipsets are - supported. + devices with SDIO interface. Currently SD8688/SD8787/SD8797 + chipsets are supported. Say Y here to compile support for Marvell BT-over-SDIO driver into the kernel or say M to compile it as module. diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c index c827d737cce..37b56398c8a 100644 --- a/drivers/bluetooth/btmrvl_sdio.c +++ b/drivers/bluetooth/btmrvl_sdio.c @@ -64,7 +64,7 @@ static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = { .io_port_1 = 0x01, .io_port_2 = 0x02, }; -static const struct btmrvl_sdio_card_reg btmrvl_reg_8787 = { +static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = { .cfg = 0x00, .host_int_mask = 0x02, .host_intstatus = 0x03, @@ -91,7 +91,14 @@ static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = { static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = { .helper = NULL, .firmware = "mrvl/sd8787_uapsta.bin", - .reg = &btmrvl_reg_8787, + .reg = &btmrvl_reg_87xx, + .sd_blksz_fw_dl = 256, +}; + +static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = { + .helper = NULL, + .firmware = "mrvl/sd8797_uapsta.bin", + .reg = &btmrvl_reg_87xx, .sd_blksz_fw_dl = 256, }; @@ -102,6 +109,9 @@ static const struct sdio_device_id btmrvl_sdio_ids[] = { /* Marvell SD8787 Bluetooth device */ { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A), .driver_data = (unsigned long) &btmrvl_sdio_sd8787 }, + /* Marvell SD8797 Bluetooth device */ + { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912A), + .driver_data = (unsigned long) &btmrvl_sdio_sd8797 }, { } /* Terminating entry */ }; @@ -1075,3 +1085,4 @@ MODULE_LICENSE("GPL v2"); MODULE_FIRMWARE("sd8688_helper.bin"); MODULE_FIRMWARE("sd8688.bin"); MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin"); +MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin"); -- cgit v1.2.3 From 48b28b8db9a74cc5c43e76485dc397e22bea2984 Mon Sep 17 00:00:00 2001 From: David Herrmann Date: Sat, 19 Nov 2011 13:23:32 +0100 Subject: Bluetooth: cmtp: Fix module reference We cannot call module_put(THIS_MODULE) if this is our last reference. Otherwise, this call may cleanup our module before it returns. Gladly, the kthread API provides a simple wrapper for us. So lets use module_put_and_exit() to avoid a race condition with the module cleanup code. Signed-off-by: David Herrmann Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan --- net/bluetooth/cmtp/core.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c index 7d00ddf9e9d..5a6e634f7fc 100644 --- a/net/bluetooth/cmtp/core.c +++ b/net/bluetooth/cmtp/core.c @@ -67,14 +67,12 @@ static struct cmtp_session *__cmtp_get_session(bdaddr_t *bdaddr) static void __cmtp_link_session(struct cmtp_session *session) { - __module_get(THIS_MODULE); list_add(&session->list, &cmtp_session_list); } static void __cmtp_unlink_session(struct cmtp_session *session) { list_del(&session->list); - module_put(THIS_MODULE); } static void __cmtp_copy_session(struct cmtp_session *session, struct cmtp_conninfo *ci) @@ -327,6 +325,7 @@ static int cmtp_session(void *arg) up_write(&cmtp_session_sem); kfree(session); + module_put_and_exit(0); return 0; } @@ -376,9 +375,11 @@ int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock) __cmtp_link_session(session); + __module_get(THIS_MODULE); session->task = kthread_run(cmtp_session, session, "kcmtpd_ctr_%d", session->num); if (IS_ERR(session->task)) { + module_put(THIS_MODULE); err = PTR_ERR(session->task); goto unlink; } -- cgit v1.2.3 From 9b338c3dd12918f7f7df2b882f63f71e9efbcb41 Mon Sep 17 00:00:00 2001 From: David Herrmann Date: Sat, 19 Nov 2011 13:23:33 +0100 Subject: Bluetooth: bnep: Fix module reference We cannot call module_put(THIS_MODULE) if this is our last reference. Otherwise, this call may cleanup our module before it returns. Gladly, the kthread API provides a simple wrapper for us. So lets use module_put_and_exit() to avoid a race condition with the module cleanup code. Signed-off-by: David Herrmann Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan --- net/bluetooth/bnep/core.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c index 91bcd3a961e..1eea8208b2c 100644 --- a/net/bluetooth/bnep/core.c +++ b/net/bluetooth/bnep/core.c @@ -79,17 +79,12 @@ static struct bnep_session *__bnep_get_session(u8 *dst) static void __bnep_link_session(struct bnep_session *s) { - /* It's safe to call __module_get() here because sessions are added - by the socket layer which has to hold the reference to this module. - */ - __module_get(THIS_MODULE); list_add(&s->list, &bnep_session_list); } static void __bnep_unlink_session(struct bnep_session *s) { list_del(&s->list); - module_put(THIS_MODULE); } static int bnep_send(struct bnep_session *s, void *data, size_t len) @@ -530,6 +525,7 @@ static int bnep_session(void *arg) up_write(&bnep_session_sem); free_netdev(dev); + module_put_and_exit(0); return 0; } @@ -616,9 +612,11 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock) __bnep_link_session(s); + __module_get(THIS_MODULE); s->task = kthread_run(bnep_session, s, "kbnepd %s", dev->name); if (IS_ERR(s->task)) { /* Session thread start failed, gotta cleanup. */ + module_put(THIS_MODULE); unregister_netdev(dev); __bnep_unlink_session(s); err = PTR_ERR(s->task); -- cgit v1.2.3 From 5151412dd4338b273afdb107c3772528e9e67d92 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Wed, 23 Nov 2011 10:59:13 +0100 Subject: block: initialize request_queue's numa node during struct request_queue is allocated with __GFP_ZERO so its "node" field is zero before initialization. This causes an oops if node 0 is offline in the page allocator because its zonelists are not initialized. From Dave Young's dmesg: SRAT: Node 1 PXM 2 0-d0000000 SRAT: Node 1 PXM 2 100000000-330000000 SRAT: Node 0 PXM 1 330000000-630000000 Initmem setup node 1 0000000000000000-000000000affb000 ... Built 1 zonelists in Node order, mobility grouping on. ... BUG: unable to handle kernel paging request at 0000000000001c08 IP: [] __alloc_pages_nodemask+0xb5/0x870 and __alloc_pages_nodemask+0xb5 translates to a NULL pointer on zonelist->_zonerefs. The fix is to initialize q->node at the time of allocation so the correct node is passed to the slab allocator later. Since blk_init_allocated_queue_node() is no longer needed, merge it with blk_init_allocated_queue(). [rientjes@google.com: changelog, initializing q->node] Cc: stable@vger.kernel.org [2.6.37+] Reported-by: Dave Young Signed-off-by: Mike Snitzer Signed-off-by: David Rientjes Tested-by: Dave Young Signed-off-by: Jens Axboe --- block/blk-core.c | 14 +++----------- include/linux/blkdev.h | 3 --- 2 files changed, 3 insertions(+), 14 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index ea70e6c80cd..20d69f6beb6 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -467,6 +467,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id) q->backing_dev_info.state = 0; q->backing_dev_info.capabilities = BDI_CAP_MAP_COPY; q->backing_dev_info.name = "block"; + q->node = node_id; err = bdi_init(&q->backing_dev_info); if (err) { @@ -551,7 +552,7 @@ blk_init_queue_node(request_fn_proc *rfn, spinlock_t *lock, int node_id) if (!uninit_q) return NULL; - q = blk_init_allocated_queue_node(uninit_q, rfn, lock, node_id); + q = blk_init_allocated_queue(uninit_q, rfn, lock); if (!q) blk_cleanup_queue(uninit_q); @@ -562,19 +563,10 @@ EXPORT_SYMBOL(blk_init_queue_node); struct request_queue * blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn, spinlock_t *lock) -{ - return blk_init_allocated_queue_node(q, rfn, lock, -1); -} -EXPORT_SYMBOL(blk_init_allocated_queue); - -struct request_queue * -blk_init_allocated_queue_node(struct request_queue *q, request_fn_proc *rfn, - spinlock_t *lock, int node_id) { if (!q) return NULL; - q->node = node_id; if (blk_init_free_list(q)) return NULL; @@ -604,7 +596,7 @@ blk_init_allocated_queue_node(struct request_queue *q, request_fn_proc *rfn, return NULL; } -EXPORT_SYMBOL(blk_init_allocated_queue_node); +EXPORT_SYMBOL(blk_init_allocated_queue); int blk_get_queue(struct request_queue *q) { diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index c7a6d3b5bc7..94acd8172b5 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -805,9 +805,6 @@ extern void blk_unprep_request(struct request *); */ extern struct request_queue *blk_init_queue_node(request_fn_proc *rfn, spinlock_t *lock, int node_id); -extern struct request_queue *blk_init_allocated_queue_node(struct request_queue *, - request_fn_proc *, - spinlock_t *, int node_id); extern struct request_queue *blk_init_queue(request_fn_proc *, spinlock_t *); extern struct request_queue *blk_init_allocated_queue(struct request_queue *, request_fn_proc *, spinlock_t *); -- cgit v1.2.3 From 8d715f0024f64ad1b1be85d8c081cf577944c847 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Fri, 18 Nov 2011 20:39:01 -0800 Subject: drm/i915: add multi-threaded forcewake support On IVB C0+ with newer BIOSes, the forcewake handshake has changed. There's now a bitfield for different driver components to keep the GT powered on. On Linux, we centralize forcewake handling in one place, so we still just need a single bit, but we need to use the new registers if MT forcewake is enabled. This needs testing on affected machines. Please reply with your tested-by if you had problems after a BIOS upgrade and this patch fixes them. v2: force MT mode. shift by 16 v3: set MT force wake bits then check ECOBUS Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42923 Tested-by: Manoj Iyer Tested-by: Robert Hooker Tested-by: Keith Packard Signed-off-by: Jesse Barnes Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_drv.c | 35 +++++++++++++++++++++++++++++------ drivers/gpu/drm/i915/i915_drv.h | 13 +++++++++++-- drivers/gpu/drm/i915/i915_reg.h | 4 ++++ drivers/gpu/drm/i915/intel_display.c | 22 ++++++++++++++++++++++ 4 files changed, 66 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 15bfa9145d2..28836fe7221 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -328,7 +328,7 @@ void intel_detect_pch(struct drm_device *dev) } } -static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv) +void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv) { int count; @@ -344,6 +344,22 @@ static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv) udelay(10); } +void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv) +{ + int count; + + count = 0; + while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_MT_ACK) & 1)) + udelay(10); + + I915_WRITE_NOTRACE(FORCEWAKE_MT, (1<<16) | 1); + POSTING_READ(FORCEWAKE_MT); + + count = 0; + while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_MT_ACK) & 1) == 0) + udelay(10); +} + /* * Generally this is called implicitly by the register read function. However, * if some sequence requires the GT to not power down then this function should @@ -356,15 +372,21 @@ void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv) /* Forcewake is atomic in case we get in here without the lock */ if (atomic_add_return(1, &dev_priv->forcewake_count) == 1) - __gen6_gt_force_wake_get(dev_priv); + dev_priv->display.force_wake_get(dev_priv); } -static void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv) +void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv) { I915_WRITE_NOTRACE(FORCEWAKE, 0); POSTING_READ(FORCEWAKE); } +void __gen6_gt_force_wake_mt_put(struct drm_i915_private *dev_priv) +{ + I915_WRITE_NOTRACE(FORCEWAKE_MT, (1<<16) | 0); + POSTING_READ(FORCEWAKE_MT); +} + /* * see gen6_gt_force_wake_get() */ @@ -373,7 +395,7 @@ void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv) WARN_ON(!mutex_is_locked(&dev_priv->dev->struct_mutex)); if (atomic_dec_and_test(&dev_priv->forcewake_count)) - __gen6_gt_force_wake_put(dev_priv); + dev_priv->display.force_wake_put(dev_priv); } void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv) @@ -903,8 +925,9 @@ MODULE_LICENSE("GPL and additional rights"); /* We give fast paths for the really cool registers */ #define NEEDS_FORCE_WAKE(dev_priv, reg) \ (((dev_priv)->info->gen >= 6) && \ - ((reg) < 0x40000) && \ - ((reg) != FORCEWAKE)) + ((reg) < 0x40000) && \ + ((reg) != FORCEWAKE) && \ + ((reg) != ECOBUS)) #define __i915_read(x, y) \ u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \ diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 4a9c1b97980..8ba88cfc36d 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -107,6 +107,7 @@ struct opregion_header; struct opregion_acpi; struct opregion_swsci; struct opregion_asle; +struct drm_i915_private; struct intel_opregion { struct opregion_header *header; @@ -221,6 +222,8 @@ struct drm_i915_display_funcs { struct drm_i915_gem_object *obj); int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb, int x, int y); + void (*force_wake_get)(struct drm_i915_private *dev_priv); + void (*force_wake_put)(struct drm_i915_private *dev_priv); /* clock updates for mode set */ /* cursor updates */ /* render clock increase/decrease */ @@ -1308,6 +1311,11 @@ extern void gen6_set_rps(struct drm_device *dev, u8 val); extern void intel_detect_pch(struct drm_device *dev); extern int intel_trans_dp_port_sel(struct drm_crtc *crtc); +extern void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv); +extern void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv); +extern void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv); +extern void __gen6_gt_force_wake_mt_put(struct drm_i915_private *dev_priv); + /* overlay */ #ifdef CONFIG_DEBUG_FS extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev); @@ -1352,8 +1360,9 @@ void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv); /* We give fast paths for the really cool registers */ #define NEEDS_FORCE_WAKE(dev_priv, reg) \ (((dev_priv)->info->gen >= 6) && \ - ((reg) < 0x40000) && \ - ((reg) != FORCEWAKE)) + ((reg) < 0x40000) && \ + ((reg) != FORCEWAKE) && \ + ((reg) != ECOBUS)) #define __i915_read(x, y) \ u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg); diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index b080cc82400..8990057e384 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3449,6 +3449,10 @@ #define FORCEWAKE 0xA18C #define FORCEWAKE_ACK 0x130090 +#define FORCEWAKE_MT 0xa188 /* multi-threaded */ +#define FORCEWAKE_MT_ACK 0x130040 +#define ECOBUS 0xa180 +#define FORCEWAKE_MT_ENABLE (1<<5) #define GT_FIFO_FREE_ENTRIES 0x120008 #define GT_FIFO_NUM_RESERVED_ENTRIES 20 diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e77a863a383..633c6936538 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8491,6 +8491,28 @@ static void intel_init_display(struct drm_device *dev) /* For FIFO watermark updates */ if (HAS_PCH_SPLIT(dev)) { + dev_priv->display.force_wake_get = __gen6_gt_force_wake_get; + dev_priv->display.force_wake_put = __gen6_gt_force_wake_put; + + /* IVB configs may use multi-threaded forcewake */ + if (IS_IVYBRIDGE(dev)) { + u32 ecobus; + + mutex_lock(&dev->struct_mutex); + __gen6_gt_force_wake_mt_get(dev_priv); + ecobus = I915_READ(ECOBUS); + __gen6_gt_force_wake_mt_put(dev_priv); + mutex_unlock(&dev->struct_mutex); + + if (ecobus & FORCEWAKE_MT_ENABLE) { + DRM_DEBUG_KMS("Using MT version of forcewake\n"); + dev_priv->display.force_wake_get = + __gen6_gt_force_wake_mt_get; + dev_priv->display.force_wake_put = + __gen6_gt_force_wake_mt_put; + } + } + if (HAS_PCH_IBX(dev)) dev_priv->display.init_pch_clock_gating = ibx_init_clock_gating; else if (HAS_PCH_CPT(dev)) -- cgit v1.2.3 From 1a2eb4604b85c5efb343da8a4dcf41288fcfca85 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Wed, 16 Nov 2011 16:26:07 -0800 Subject: drm/i915: Hook up Ivybridge eDP The Ivybridge eDP control register looks like a cross between a Cougarpoint PCH DP control register and a Sandybridge eDP control register. Where things trivially match, share the code. Where there are any tricky bits, just split things out into two obviously separate code paths. Signed-off-by: Keith Packard Tested-by: Fang Xun Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41991 --- drivers/gpu/drm/i915/i915_reg.h | 18 +++++ drivers/gpu/drm/i915/intel_dp.c | 149 +++++++++++++++++++++++++++++++--------- 2 files changed, 133 insertions(+), 34 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 8990057e384..6ef68c74189 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3447,6 +3447,24 @@ #define EDP_LINK_TRAIN_800_1200MV_0DB_SNB_B (0x38<<22) #define EDP_LINK_TRAIN_VOL_EMP_MASK_SNB (0x3f<<22) +/* IVB */ +#define EDP_LINK_TRAIN_400MV_0DB_IVB (0x24 <<22) +#define EDP_LINK_TRAIN_400MV_3_5DB_IVB (0x2a <<22) +#define EDP_LINK_TRAIN_400MV_6DB_IVB (0x2f <<22) +#define EDP_LINK_TRAIN_600MV_0DB_IVB (0x30 <<22) +#define EDP_LINK_TRAIN_600MV_3_5DB_IVB (0x36 <<22) +#define EDP_LINK_TRAIN_800MV_0DB_IVB (0x38 <<22) +#define EDP_LINK_TRAIN_800MV_3_5DB_IVB (0x33 <<22) + +/* legacy values */ +#define EDP_LINK_TRAIN_500MV_0DB_IVB (0x00 <<22) +#define EDP_LINK_TRAIN_1000MV_0DB_IVB (0x20 <<22) +#define EDP_LINK_TRAIN_500MV_3_5DB_IVB (0x02 <<22) +#define EDP_LINK_TRAIN_1000MV_3_5DB_IVB (0x22 <<22) +#define EDP_LINK_TRAIN_1000MV_6DB_IVB (0x23 <<22) + +#define EDP_LINK_TRAIN_VOL_EMP_MASK_IVB (0x3f<<22) + #define FORCEWAKE 0xA18C #define FORCEWAKE_ACK 0x130090 #define FORCEWAKE_MT 0xa188 /* multi-threaded */ diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 4d0358fad93..294f55788f0 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -362,8 +362,8 @@ intel_dp_aux_ch(struct intel_dp *intel_dp, * clock divider. */ if (is_cpu_edp(intel_dp)) { - if (IS_GEN6(dev)) - aux_clock_divider = 200; /* SNB eDP input clock at 400Mhz */ + if (IS_GEN6(dev) || IS_GEN7(dev)) + aux_clock_divider = 200; /* SNB & IVB eDP input clock at 400Mhz */ else aux_clock_divider = 225; /* eDP input clock at 450Mhz */ } else if (HAS_PCH_SPLIT(dev)) @@ -817,10 +817,11 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, } /* - * There are three kinds of DP registers: + * There are four kinds of DP registers: * * IBX PCH - * CPU + * SNB CPU + * IVB CPU * CPT PCH * * IBX PCH and CPU are the same for almost everything, @@ -873,7 +874,25 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, /* Split out the IBX/CPU vs CPT settings */ - if (!HAS_PCH_CPT(dev) || is_cpu_edp(intel_dp)) { + if (is_cpu_edp(intel_dp) && IS_GEN7(dev)) { + if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) + intel_dp->DP |= DP_SYNC_HS_HIGH; + if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) + intel_dp->DP |= DP_SYNC_VS_HIGH; + intel_dp->DP |= DP_LINK_TRAIN_OFF_CPT; + + if (intel_dp->link_configuration[1] & DP_LANE_COUNT_ENHANCED_FRAME_EN) + intel_dp->DP |= DP_ENHANCED_FRAMING; + + intel_dp->DP |= intel_crtc->pipe << 29; + + /* don't miss out required setting for eDP */ + intel_dp->DP |= DP_PLL_ENABLE; + if (adjusted_mode->clock < 200000) + intel_dp->DP |= DP_PLL_FREQ_160MHZ; + else + intel_dp->DP |= DP_PLL_FREQ_270MHZ; + } else if (!HAS_PCH_CPT(dev) || is_cpu_edp(intel_dp)) { intel_dp->DP |= intel_dp->color_range; if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) @@ -1375,34 +1394,59 @@ static char *link_train_names[] = { * These are source-specific values; current Intel hardware supports * a maximum voltage of 800mV and a maximum pre-emphasis of 6dB */ -#define I830_DP_VOLTAGE_MAX DP_TRAIN_VOLTAGE_SWING_800 -#define I830_DP_VOLTAGE_MAX_CPT DP_TRAIN_VOLTAGE_SWING_1200 static uint8_t -intel_dp_pre_emphasis_max(uint8_t voltage_swing) +intel_dp_voltage_max(struct intel_dp *intel_dp) { - switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) { - case DP_TRAIN_VOLTAGE_SWING_400: - return DP_TRAIN_PRE_EMPHASIS_6; - case DP_TRAIN_VOLTAGE_SWING_600: - return DP_TRAIN_PRE_EMPHASIS_6; - case DP_TRAIN_VOLTAGE_SWING_800: - return DP_TRAIN_PRE_EMPHASIS_3_5; - case DP_TRAIN_VOLTAGE_SWING_1200: - default: - return DP_TRAIN_PRE_EMPHASIS_0; + struct drm_device *dev = intel_dp->base.base.dev; + + if (IS_GEN7(dev) && is_cpu_edp(intel_dp)) + return DP_TRAIN_VOLTAGE_SWING_800; + else if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp)) + return DP_TRAIN_VOLTAGE_SWING_1200; + else + return DP_TRAIN_VOLTAGE_SWING_800; +} + +static uint8_t +intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing) +{ + struct drm_device *dev = intel_dp->base.base.dev; + + if (IS_GEN7(dev) && is_cpu_edp(intel_dp)) { + switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) { + case DP_TRAIN_VOLTAGE_SWING_400: + return DP_TRAIN_PRE_EMPHASIS_6; + case DP_TRAIN_VOLTAGE_SWING_600: + case DP_TRAIN_VOLTAGE_SWING_800: + return DP_TRAIN_PRE_EMPHASIS_3_5; + default: + return DP_TRAIN_PRE_EMPHASIS_0; + } + } else { + switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) { + case DP_TRAIN_VOLTAGE_SWING_400: + return DP_TRAIN_PRE_EMPHASIS_6; + case DP_TRAIN_VOLTAGE_SWING_600: + return DP_TRAIN_PRE_EMPHASIS_6; + case DP_TRAIN_VOLTAGE_SWING_800: + return DP_TRAIN_PRE_EMPHASIS_3_5; + case DP_TRAIN_VOLTAGE_SWING_1200: + default: + return DP_TRAIN_PRE_EMPHASIS_0; + } } } static void intel_get_adjust_train(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_STATUS_SIZE]) { - struct drm_device *dev = intel_dp->base.base.dev; uint8_t v = 0; uint8_t p = 0; int lane; uint8_t *adjust_request = link_status + (DP_ADJUST_REQUEST_LANE0_1 - DP_LANE0_1_STATUS); - int voltage_max; + uint8_t voltage_max; + uint8_t preemph_max; for (lane = 0; lane < intel_dp->lane_count; lane++) { uint8_t this_v = intel_get_adjust_request_voltage(adjust_request, lane); @@ -1414,15 +1458,13 @@ intel_get_adjust_train(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_ST p = this_p; } - if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp)) - voltage_max = I830_DP_VOLTAGE_MAX_CPT; - else - voltage_max = I830_DP_VOLTAGE_MAX; + voltage_max = intel_dp_voltage_max(intel_dp); if (v >= voltage_max) v = voltage_max | DP_TRAIN_MAX_SWING_REACHED; - if (p >= intel_dp_pre_emphasis_max(v)) - p = intel_dp_pre_emphasis_max(v) | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED; + preemph_max = intel_dp_pre_emphasis_max(intel_dp, v); + if (p >= preemph_max) + p = preemph_max | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED; for (lane = 0; lane < 4; lane++) intel_dp->train_set[lane] = v | p; @@ -1494,6 +1536,37 @@ intel_gen6_edp_signal_levels(uint8_t train_set) } } +/* Gen7's DP voltage swing and pre-emphasis control */ +static uint32_t +intel_gen7_edp_signal_levels(uint8_t train_set) +{ + int signal_levels = train_set & (DP_TRAIN_VOLTAGE_SWING_MASK | + DP_TRAIN_PRE_EMPHASIS_MASK); + switch (signal_levels) { + case DP_TRAIN_VOLTAGE_SWING_400 | DP_TRAIN_PRE_EMPHASIS_0: + return EDP_LINK_TRAIN_400MV_0DB_IVB; + case DP_TRAIN_VOLTAGE_SWING_400 | DP_TRAIN_PRE_EMPHASIS_3_5: + return EDP_LINK_TRAIN_400MV_3_5DB_IVB; + case DP_TRAIN_VOLTAGE_SWING_400 | DP_TRAIN_PRE_EMPHASIS_6: + return EDP_LINK_TRAIN_400MV_6DB_IVB; + + case DP_TRAIN_VOLTAGE_SWING_600 | DP_TRAIN_PRE_EMPHASIS_0: + return EDP_LINK_TRAIN_600MV_0DB_IVB; + case DP_TRAIN_VOLTAGE_SWING_600 | DP_TRAIN_PRE_EMPHASIS_3_5: + return EDP_LINK_TRAIN_600MV_3_5DB_IVB; + + case DP_TRAIN_VOLTAGE_SWING_800 | DP_TRAIN_PRE_EMPHASIS_0: + return EDP_LINK_TRAIN_800MV_0DB_IVB; + case DP_TRAIN_VOLTAGE_SWING_800 | DP_TRAIN_PRE_EMPHASIS_3_5: + return EDP_LINK_TRAIN_800MV_3_5DB_IVB; + + default: + DRM_DEBUG_KMS("Unsupported voltage swing/pre-emphasis level:" + "0x%x\n", signal_levels); + return EDP_LINK_TRAIN_500MV_0DB_IVB; + } +} + static uint8_t intel_get_lane_status(uint8_t link_status[DP_LINK_STATUS_SIZE], int lane) @@ -1599,7 +1672,8 @@ intel_dp_start_link_train(struct intel_dp *intel_dp) DP_LINK_CONFIGURATION_SIZE); DP |= DP_PORT_EN; - if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp)) + + if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp))) DP &= ~DP_LINK_TRAIN_MASK_CPT; else DP &= ~DP_LINK_TRAIN_MASK; @@ -1613,7 +1687,11 @@ intel_dp_start_link_train(struct intel_dp *intel_dp) uint8_t link_status[DP_LINK_STATUS_SIZE]; uint32_t signal_levels; - if (IS_GEN6(dev) && is_cpu_edp(intel_dp)) { + + if (IS_GEN7(dev) && is_cpu_edp(intel_dp)) { + signal_levels = intel_gen7_edp_signal_levels(intel_dp->train_set[0]); + DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_IVB) | signal_levels; + } else if (IS_GEN6(dev) && is_cpu_edp(intel_dp)) { signal_levels = intel_gen6_edp_signal_levels(intel_dp->train_set[0]); DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_SNB) | signal_levels; } else { @@ -1622,7 +1700,7 @@ intel_dp_start_link_train(struct intel_dp *intel_dp) DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels; } - if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp)) + if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp))) reg = DP | DP_LINK_TRAIN_PAT_1_CPT; else reg = DP | DP_LINK_TRAIN_PAT_1; @@ -1703,7 +1781,10 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp) break; } - if (IS_GEN6(dev) && is_cpu_edp(intel_dp)) { + if (IS_GEN7(dev) && is_cpu_edp(intel_dp)) { + signal_levels = intel_gen7_edp_signal_levels(intel_dp->train_set[0]); + DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_IVB) | signal_levels; + } else if (IS_GEN6(dev) && is_cpu_edp(intel_dp)) { signal_levels = intel_gen6_edp_signal_levels(intel_dp->train_set[0]); DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_SNB) | signal_levels; } else { @@ -1711,7 +1792,7 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp) DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels; } - if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp)) + if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp))) reg = DP | DP_LINK_TRAIN_PAT_2_CPT; else reg = DP | DP_LINK_TRAIN_PAT_2; @@ -1752,7 +1833,7 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp) ++tries; } - if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp)) + if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp))) reg = DP | DP_LINK_TRAIN_OFF_CPT; else reg = DP | DP_LINK_TRAIN_OFF; @@ -1782,7 +1863,7 @@ intel_dp_link_down(struct intel_dp *intel_dp) udelay(100); } - if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp)) { + if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp))) { DP &= ~DP_LINK_TRAIN_MASK_CPT; I915_WRITE(intel_dp->output_reg, DP | DP_LINK_TRAIN_PAT_IDLE_CPT); } else { @@ -1794,7 +1875,7 @@ intel_dp_link_down(struct intel_dp *intel_dp) msleep(17); if (is_edp(intel_dp)) { - if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp)) + if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp))) DP |= DP_LINK_TRAIN_OFF_CPT; else DP |= DP_LINK_TRAIN_OFF; -- cgit v1.2.3 From ca88479c1c3b7b1a9f94320745f5331e1de77f80 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Fri, 18 Nov 2011 11:09:24 -0800 Subject: drm/i915: Treat pre-gen4 backlight duty cycle value consistently For i945 and earlier chips, the backlight frequency value had the low bit (of 16) fixed to zero. The Pineview code path handled this by just exposing the backlight range as 15 bits while other chips had the backlight range limited to 0 .. 0xfffe. This patch makes everyone take the pineview code path, providing 15 bits of backlight duty cycle range which seems more than sufficient to me. Daniel Mack reported that writing 1 to bit 0 of the duty cycle register was causing problems on his Samsung X20 notebook, even when the duty cycle value was less than the maximum backlight value. (He tried a value of 29749 with max_brightness of 29750). This patch never writes a '1' to that bit. Signed-off-by: Keith Packard Reviewed-by: Takashi Iwai Reported-and-tested-by: Daniel Mack Cc: stable@kernel.org --- drivers/gpu/drm/i915/intel_panel.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 21f60b7d69a..04d79fd1dc9 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -178,13 +178,10 @@ u32 intel_panel_get_max_backlight(struct drm_device *dev) if (HAS_PCH_SPLIT(dev)) { max >>= 16; } else { - if (IS_PINEVIEW(dev)) { + if (INTEL_INFO(dev)->gen < 4) max >>= 17; - } else { + else max >>= 16; - if (INTEL_INFO(dev)->gen < 4) - max &= ~1; - } if (is_backlight_combination_mode(dev)) max *= 0xff; @@ -203,13 +200,12 @@ u32 intel_panel_get_backlight(struct drm_device *dev) val = I915_READ(BLC_PWM_CPU_CTL) & BACKLIGHT_DUTY_CYCLE_MASK; } else { val = I915_READ(BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK; - if (IS_PINEVIEW(dev)) + if (INTEL_INFO(dev)->gen < 4) val >>= 1; if (is_backlight_combination_mode(dev)) { u8 lbpc; - val &= ~1; pci_read_config_byte(dev->pdev, PCI_LBPC, &lbpc); val *= lbpc; } @@ -246,11 +242,9 @@ static void intel_panel_actually_set_backlight(struct drm_device *dev, u32 level } tmp = I915_READ(BLC_PWM_CTL); - if (IS_PINEVIEW(dev)) { - tmp &= ~(BACKLIGHT_DUTY_CYCLE_MASK - 1); + if (INTEL_INFO(dev)->gen < 4) level <<= 1; - } else - tmp &= ~BACKLIGHT_DUTY_CYCLE_MASK; + tmp &= ~BACKLIGHT_DUTY_CYCLE_MASK; I915_WRITE(BLC_PWM_CTL, tmp | level); } -- cgit v1.2.3 From 1b6cec8a6910ca08d727898453baad22b0122920 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Tue, 22 Nov 2011 15:15:57 +0900 Subject: ARM: mach-shmobile: Kota2 PINT fix Support PINT on sh73a0 and Kota2 using INTC PINT macros. With this patch applied the Kota2 ethernet is handled through one of the chained sh73a0 PINT interrupt controllers. sh73a0 PINT support is included in 3.2-rc but the Kota2 board code does not make use of this shared code base without this patch. Without this patch kota2 on-board ethernet is broken. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/arm/mach-shmobile/board-kota2.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/arch/arm/mach-shmobile/board-kota2.c b/arch/arm/mach-shmobile/board-kota2.c index bd9a78424d6..5e084b9a840 100644 --- a/arch/arm/mach-shmobile/board-kota2.c +++ b/arch/arm/mach-shmobile/board-kota2.c @@ -56,7 +56,7 @@ static struct resource smsc9220_resources[] = { .flags = IORESOURCE_MEM, }, [1] = { - .start = gic_spi(33), /* PINTA2 @ PORT144 */ + .start = SH73A0_PINT0_IRQ(2), /* PINTA2 */ .flags = IORESOURCE_IRQ, }, }; @@ -317,18 +317,6 @@ static void __init kota2_map_io(void) shmobile_setup_console(); } -#define PINTER0A 0xe69000a0 -#define PINTCR0A 0xe69000b0 - -void __init kota2_init_irq(void) -{ - sh73a0_init_irq(); - - /* setup PINT: enable PINTA2 as active low */ - __raw_writel(1 << 29, PINTER0A); - __raw_writew(2 << 10, PINTCR0A); -} - static void __init kota2_init(void) { sh73a0_pinmux_init(); @@ -447,7 +435,7 @@ struct sys_timer kota2_timer = { MACHINE_START(KOTA2, "kota2") .map_io = kota2_map_io, - .init_irq = kota2_init_irq, + .init_irq = sh73a0_init_irq, .handle_irq = shmobile_handle_irq_gic, .init_machine = kota2_init, .timer = &kota2_timer, -- cgit v1.2.3 From dcb4ea869877b00fd1c761662bfd9359d15a8c2a Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Tue, 22 Nov 2011 15:29:54 +0900 Subject: ARM: mach-shmobile: Kota2 GIC Sparse IRQ fix Fix IRQ support on the Kota2 board. The sh73a0 and the Kota2 board make use of the ARM GIC hardware block as main interrupt controller. The following commit changed the default behaviour for non-device tree platforms and broke Kota2 irq support: f37a53c ARM: gic: fix irq_alloc_descs handling for sparse irq Without this fix the following warning triggers at boot: NR_IRQS:1024 nr_irqs:1024 1024 ------------[ cut here ]------------ WARNING: at arch/arm/common/gic.c:607 gic_init+0x90/0x2e4() Cannot allocate irq_descs @ IRQ16, assuming pre-allocated [] (unwind_backtrace+0x0/0xe0) from [] (warn_slowpath_commo) [] (warn_slowpath_common+0x48/0x60) from [] (warn_slowpath_) [] (warn_slowpath_fmt+0x2c/0x3c) from [] (gic_init+0x90/0x2) [] (gic_init+0x90/0x2e4) from [] (sh73a0_init_irq+0x30/0x18) [] (sh73a0_init_irq+0x30/0x184) from [] (init_IRQ+0x14/0x1c) [] (init_IRQ+0x14/0x1c) from [] (start_kernel+0x15c/0x2b8) [] (start_kernel+0x15c/0x2b8) from [<4000803c>] (0x4000803c) ---[ end trace 1b75b31a2719ed1c ]--- With this fix applied interrupts work as expected. Signed-off-by: Magnus Damm Acked-by: Rob Herring Signed-off-by: Paul Mundt --- arch/arm/mach-shmobile/board-kota2.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-shmobile/board-kota2.c b/arch/arm/mach-shmobile/board-kota2.c index 5e084b9a840..53e5e45521a 100644 --- a/arch/arm/mach-shmobile/board-kota2.c +++ b/arch/arm/mach-shmobile/board-kota2.c @@ -435,6 +435,7 @@ struct sys_timer kota2_timer = { MACHINE_START(KOTA2, "kota2") .map_io = kota2_map_io, + .nr_irqs = NR_IRQS_LEGACY, .init_irq = sh73a0_init_irq, .handle_irq = shmobile_handle_irq_gic, .init_machine = kota2_init, -- cgit v1.2.3 From 33661c9e2062865acde9d421c971f1c142cf99ca Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Tue, 22 Nov 2011 15:44:58 +0900 Subject: ARM: mach-shmobile: Kota2 TPU LED platform data This patch updates the Kota2 board support code to use the recently merged TPU LED driver whenever possible. The sh73a0 SoC has 5 TPU hardware blocks each with 4 timer channels which in theory allows a total of 20 LEDs to be controlled by "leds-renesas-tpu" driver instances. The Kota2 board has 4 LEDs connected to GPIO pins that also come with TPU pin functions, so this patch ties up these 4 LEDS and leaves the remaining 3 LEDS for the GPIO based LED driver. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/arm/mach-shmobile/board-kota2.c | 122 ++++++++++++++++++++++++++++++++-- arch/arm/mach-shmobile/clock-sh73a0.c | 16 +++++ 2 files changed, 134 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-shmobile/board-kota2.c b/arch/arm/mach-shmobile/board-kota2.c index 53e5e45521a..f44150b5ae4 100644 --- a/arch/arm/mach-shmobile/board-kota2.c +++ b/arch/arm/mach-shmobile/board-kota2.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include #include @@ -157,10 +158,6 @@ static struct platform_device gpio_keys_device = { #define GPIO_LED(n, g) { .name = n, .gpio = g } static struct gpio_led gpio_leds[] = { - GPIO_LED("V2513", GPIO_PORT153), /* PORT153 [TPU1T02] -> V2513 */ - GPIO_LED("V2514", GPIO_PORT199), /* PORT199 [TPU4TO1] -> V2514 */ - GPIO_LED("V2515", GPIO_PORT197), /* PORT197 [TPU2TO1] -> V2515 */ - GPIO_LED("KEYLED", GPIO_PORT163), /* PORT163 [TPU3TO0] -> KEYLED */ GPIO_LED("G", GPIO_PORT20), /* PORT20 [GPO0] -> LED7 -> "G" */ GPIO_LED("H", GPIO_PORT21), /* PORT21 [GPO1] -> LED8 -> "H" */ GPIO_LED("J", GPIO_PORT22), /* PORT22 [GPO2] -> LED9 -> "J" */ @@ -179,6 +176,119 @@ static struct platform_device gpio_leds_device = { }, }; +/* TPU LED */ +static struct led_renesas_tpu_config led_renesas_tpu12_pdata = { + .name = "V2513", + .pin_gpio_fn = GPIO_FN_TPU1TO2, + .pin_gpio = GPIO_PORT153, + .channel_offset = 0x90, + .timer_bit = 2, + .max_brightness = 1000, +}; + +static struct resource tpu12_resources[] = { + [0] = { + .name = "TPU12", + .start = 0xe6610090, + .end = 0xe66100b5, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device leds_tpu12_device = { + .name = "leds-renesas-tpu", + .id = 12, + .dev = { + .platform_data = &led_renesas_tpu12_pdata, + }, + .num_resources = ARRAY_SIZE(tpu12_resources), + .resource = tpu12_resources, +}; + +static struct led_renesas_tpu_config led_renesas_tpu41_pdata = { + .name = "V2514", + .pin_gpio_fn = GPIO_FN_TPU4TO1, + .pin_gpio = GPIO_PORT199, + .channel_offset = 0x50, + .timer_bit = 1, + .max_brightness = 1000, +}; + +static struct resource tpu41_resources[] = { + [0] = { + .name = "TPU41", + .start = 0xe6640050, + .end = 0xe6640075, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device leds_tpu41_device = { + .name = "leds-renesas-tpu", + .id = 41, + .dev = { + .platform_data = &led_renesas_tpu41_pdata, + }, + .num_resources = ARRAY_SIZE(tpu41_resources), + .resource = tpu41_resources, +}; + +static struct led_renesas_tpu_config led_renesas_tpu21_pdata = { + .name = "V2515", + .pin_gpio_fn = GPIO_FN_TPU2TO1, + .pin_gpio = GPIO_PORT197, + .channel_offset = 0x50, + .timer_bit = 1, + .max_brightness = 1000, +}; + +static struct resource tpu21_resources[] = { + [0] = { + .name = "TPU21", + .start = 0xe6620050, + .end = 0xe6620075, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device leds_tpu21_device = { + .name = "leds-renesas-tpu", + .id = 21, + .dev = { + .platform_data = &led_renesas_tpu21_pdata, + }, + .num_resources = ARRAY_SIZE(tpu21_resources), + .resource = tpu21_resources, +}; + +static struct led_renesas_tpu_config led_renesas_tpu30_pdata = { + .name = "KEYLED", + .pin_gpio_fn = GPIO_FN_TPU3TO0, + .pin_gpio = GPIO_PORT163, + .channel_offset = 0x10, + .timer_bit = 0, + .max_brightness = 1000, +}; + +static struct resource tpu30_resources[] = { + [0] = { + .name = "TPU30", + .start = 0xe6630010, + .end = 0xe6630035, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device leds_tpu30_device = { + .name = "leds-renesas-tpu", + .id = 30, + .dev = { + .platform_data = &led_renesas_tpu30_pdata, + }, + .num_resources = ARRAY_SIZE(tpu30_resources), + .resource = tpu30_resources, +}; + /* MMCIF */ static struct resource mmcif_resources[] = { [0] = { @@ -291,6 +401,10 @@ static struct platform_device *kota2_devices[] __initdata = { &keysc_device, &gpio_keys_device, &gpio_leds_device, + &leds_tpu12_device, + &leds_tpu41_device, + &leds_tpu21_device, + &leds_tpu30_device, &mmcif_device, &sdhi0_device, &sdhi1_device, diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c index 61a846bb30f..a56d6c63b71 100644 --- a/arch/arm/mach-shmobile/clock-sh73a0.c +++ b/arch/arm/mach-shmobile/clock-sh73a0.c @@ -113,6 +113,12 @@ static struct clk main_clk = { .ops = &main_clk_ops, }; +/* Divide Main clock by two */ +static struct clk main_div2_clk = { + .ops = &div2_clk_ops, + .parent = &main_clk, +}; + /* PLL0, PLL1, PLL2, PLL3 */ static unsigned long pll_recalc(struct clk *clk) { @@ -181,6 +187,7 @@ static struct clk *main_clks[] = { &extal1_div2_clk, &extal2_div2_clk, &main_clk, + &main_div2_clk, &pll0_clk, &pll1_clk, &pll2_clk, @@ -268,6 +275,7 @@ enum { MSTP001, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200, MSTP331, MSTP329, MSTP325, MSTP323, MSTP318, MSTP314, MSTP313, MSTP312, MSTP311, + MSTP303, MSTP302, MSTP301, MSTP300, MSTP411, MSTP410, MSTP403, MSTP_NR }; @@ -301,6 +309,10 @@ static struct clk mstp_clks[MSTP_NR] = { [MSTP313] = MSTP(&div6_clks[DIV6_SDHI1], SMSTPCR3, 13, 0), /* SDHI1 */ [MSTP312] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 12, 0), /* MMCIF0 */ [MSTP311] = MSTP(&div6_clks[DIV6_SDHI2], SMSTPCR3, 11, 0), /* SDHI2 */ + [MSTP303] = MSTP(&main_div2_clk, SMSTPCR3, 3, 0), /* TPU1 */ + [MSTP302] = MSTP(&main_div2_clk, SMSTPCR3, 2, 0), /* TPU2 */ + [MSTP301] = MSTP(&main_div2_clk, SMSTPCR3, 1, 0), /* TPU3 */ + [MSTP300] = MSTP(&main_div2_clk, SMSTPCR3, 0, 0), /* TPU4 */ [MSTP411] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 11, 0), /* IIC3 */ [MSTP410] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 10, 0), /* IIC4 */ [MSTP403] = MSTP(&r_clk, SMSTPCR4, 3, 0), /* KEYSC */ @@ -350,6 +362,10 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */ CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMCIF0 */ CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP311]), /* SDHI2 */ + CLKDEV_DEV_ID("leds-renesas-tpu.12", &mstp_clks[MSTP303]), /* TPU1 */ + CLKDEV_DEV_ID("leds-renesas-tpu.21", &mstp_clks[MSTP302]), /* TPU2 */ + CLKDEV_DEV_ID("leds-renesas-tpu.30", &mstp_clks[MSTP301]), /* TPU3 */ + CLKDEV_DEV_ID("leds-renesas-tpu.41", &mstp_clks[MSTP300]), /* TPU4 */ CLKDEV_DEV_ID("i2c-sh_mobile.3", &mstp_clks[MSTP411]), /* I2C3 */ CLKDEV_DEV_ID("i2c-sh_mobile.4", &mstp_clks[MSTP410]), /* I2C4 */ CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[MSTP403]), /* KEYSC */ -- cgit v1.2.3 From eded9143151a116753b1d8e893bc2d37f8687e0b Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Tue, 22 Nov 2011 15:31:40 +0900 Subject: ARM: mach-shmobile: AG5EVM GIC Sparse IRQ fix Fix IRQ support on the AG5EVM board. The sh73a0 and the AG5EVM board make use of the ARM GIC hardware block as main interrupt controller. The following commit changed the default behaviour for non-device tree platforms and broke AG5EVM irq support: f37a53c ARM: gic: fix irq_alloc_descs handling for sparse irq Without this fix the following warning triggers at boot: NR_IRQS:1024 nr_irqs:1024 1024 ------------[ cut here ]------------ WARNING: at arch/arm/common/gic.c:607 gic_init+0x90/0x2e4() Cannot allocate irq_descs @ IRQ16, assuming pre-allocated [] (unwind_backtrace+0x0/0xe0) from [] (warn_slowpath_commo) [] (warn_slowpath_common+0x48/0x60) from [] (warn_slowpath_) [] (warn_slowpath_fmt+0x2c/0x3c) from [] (gic_init+0x90/0x2) [] (gic_init+0x90/0x2e4) from [] (sh73a0_init_irq+0x30/0x18) [] (sh73a0_init_irq+0x30/0x184) from [] (init_IRQ+0x14/0x1c) [] (init_IRQ+0x14/0x1c) from [] (start_kernel+0x15c/0x2b8) [] (start_kernel+0x15c/0x2b8) from [<4000803c>] (0x4000803c) ---[ end trace 1b75b31a2719ed1c ]--- With this fix applied interrupts work as expected. Signed-off-by: Magnus Damm Acked-by: Rob Herring Signed-off-by: Paul Mundt --- arch/arm/mach-shmobile/board-ag5evm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c index b862e9f81e3..7119b87cbfa 100644 --- a/arch/arm/mach-shmobile/board-ag5evm.c +++ b/arch/arm/mach-shmobile/board-ag5evm.c @@ -607,6 +607,7 @@ struct sys_timer ag5evm_timer = { MACHINE_START(AG5EVM, "ag5evm") .map_io = ag5evm_map_io, + .nr_irqs = NR_IRQS_LEGACY, .init_irq = sh73a0_init_irq, .handle_irq = shmobile_handle_irq_gic, .init_machine = ag5evm_init, -- cgit v1.2.3 From 9bcc0a5d0de137b3a154dc951c5ff70dce815879 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Tue, 22 Nov 2011 15:23:17 +0900 Subject: ARM: mach-shmobile: SH73A0 external Ethernet fix Keep the ZB clock enabled on sh73a0 to allow the BSC to access external peripherals hooked up to CS signals. This is needed to unbreak Ethernet support on sh73a0 boards such as AG5EVM and Kota2 together with the following patch: 794d78f drivers: sh: late disabling of clocks V2 Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/arm/mach-shmobile/clock-sh73a0.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c index 61a846bb30f..84fd33c9f4e 100644 --- a/arch/arm/mach-shmobile/clock-sh73a0.c +++ b/arch/arm/mach-shmobile/clock-sh73a0.c @@ -243,7 +243,7 @@ static struct clk div6_clks[DIV6_NR] = { [DIV6_VCK1] = SH_CLK_DIV6(&pll1_div2_clk, VCLKCR1, 0), [DIV6_VCK2] = SH_CLK_DIV6(&pll1_div2_clk, VCLKCR2, 0), [DIV6_VCK3] = SH_CLK_DIV6(&pll1_div2_clk, VCLKCR3, 0), - [DIV6_ZB1] = SH_CLK_DIV6(&pll1_div2_clk, ZBCKCR, 0), + [DIV6_ZB1] = SH_CLK_DIV6(&pll1_div2_clk, ZBCKCR, CLK_ENABLE_ON_INIT), [DIV6_FLCTL] = SH_CLK_DIV6(&pll1_div2_clk, FLCKCR, 0), [DIV6_SDHI0] = SH_CLK_DIV6(&pll1_div2_clk, SD0CKCR, 0), [DIV6_SDHI1] = SH_CLK_DIV6(&pll1_div2_clk, SD1CKCR, 0), -- cgit v1.2.3 From ff83bd82cb343d37b5ab8e402aaad9ef33d03f1e Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Sat, 12 Nov 2011 22:33:30 -0300 Subject: [media] af9015: limit I2C access to keep FW happy AF9015 firmware does not like if it gets interrupted by I2C adapter request on some critical phases. During normal operation I2C adapter is used only 2nd demodulator and tuner on dual tuner devices. Override demodulator callbacks and use mutex for limit access to those "critical" paths to keep AF9015 happy. Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-usb/af9015.c | 97 ++++++++++++++++++++++++++++++++++++++ drivers/media/dvb/dvb-usb/af9015.h | 7 +++ 2 files changed, 104 insertions(+) diff --git a/drivers/media/dvb/dvb-usb/af9015.c b/drivers/media/dvb/dvb-usb/af9015.c index c6c275bac08..033aa8affd8 100644 --- a/drivers/media/dvb/dvb-usb/af9015.c +++ b/drivers/media/dvb/dvb-usb/af9015.c @@ -1093,9 +1093,80 @@ error: return ret; } +/* override demod callbacks for resource locking */ +static int af9015_af9013_set_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *params) +{ + int ret; + struct dvb_usb_adapter *adap = fe->dvb->priv; + struct af9015_state *priv = adap->dev->priv; + + if (mutex_lock_interruptible(&adap->dev->usb_mutex)) + return -EAGAIN; + + ret = priv->set_frontend[adap->id](fe, params); + + mutex_unlock(&adap->dev->usb_mutex); + + return ret; +} + +/* override demod callbacks for resource locking */ +static int af9015_af9013_read_status(struct dvb_frontend *fe, + fe_status_t *status) +{ + int ret; + struct dvb_usb_adapter *adap = fe->dvb->priv; + struct af9015_state *priv = adap->dev->priv; + + if (mutex_lock_interruptible(&adap->dev->usb_mutex)) + return -EAGAIN; + + ret = priv->read_status[adap->id](fe, status); + + mutex_unlock(&adap->dev->usb_mutex); + + return ret; +} + +/* override demod callbacks for resource locking */ +static int af9015_af9013_init(struct dvb_frontend *fe) +{ + int ret; + struct dvb_usb_adapter *adap = fe->dvb->priv; + struct af9015_state *priv = adap->dev->priv; + + if (mutex_lock_interruptible(&adap->dev->usb_mutex)) + return -EAGAIN; + + ret = priv->init[adap->id](fe); + + mutex_unlock(&adap->dev->usb_mutex); + + return ret; +} + +/* override demod callbacks for resource locking */ +static int af9015_af9013_sleep(struct dvb_frontend *fe) +{ + int ret; + struct dvb_usb_adapter *adap = fe->dvb->priv; + struct af9015_state *priv = adap->dev->priv; + + if (mutex_lock_interruptible(&adap->dev->usb_mutex)) + return -EAGAIN; + + ret = priv->init[adap->id](fe); + + mutex_unlock(&adap->dev->usb_mutex); + + return ret; +} + static int af9015_af9013_frontend_attach(struct dvb_usb_adapter *adap) { int ret; + struct af9015_state *state = adap->dev->priv; if (adap->id == 1) { /* copy firmware to 2nd demodulator */ @@ -1116,6 +1187,32 @@ static int af9015_af9013_frontend_attach(struct dvb_usb_adapter *adap) adap->fe_adap[0].fe = dvb_attach(af9013_attach, &af9015_af9013_config[adap->id], &adap->dev->i2c_adap); + /* + * AF9015 firmware does not like if it gets interrupted by I2C adapter + * request on some critical phases. During normal operation I2C adapter + * is used only 2nd demodulator and tuner on dual tuner devices. + * Override demodulator callbacks and use mutex for limit access to + * those "critical" paths to keep AF9015 happy. + * Note: we abuse unused usb_mutex here. + */ + if (adap->fe_adap[0].fe) { + state->set_frontend[adap->id] = + adap->fe_adap[0].fe->ops.set_frontend; + adap->fe_adap[0].fe->ops.set_frontend = + af9015_af9013_set_frontend; + + state->read_status[adap->id] = + adap->fe_adap[0].fe->ops.read_status; + adap->fe_adap[0].fe->ops.read_status = + af9015_af9013_read_status; + + state->init[adap->id] = adap->fe_adap[0].fe->ops.init; + adap->fe_adap[0].fe->ops.init = af9015_af9013_init; + + state->sleep[adap->id] = adap->fe_adap[0].fe->ops.sleep; + adap->fe_adap[0].fe->ops.sleep = af9015_af9013_sleep; + } + return adap->fe_adap[0].fe == NULL ? -ENODEV : 0; } diff --git a/drivers/media/dvb/dvb-usb/af9015.h b/drivers/media/dvb/dvb-usb/af9015.h index 6252ea6c190..4a126177e10 100644 --- a/drivers/media/dvb/dvb-usb/af9015.h +++ b/drivers/media/dvb/dvb-usb/af9015.h @@ -102,6 +102,13 @@ struct af9015_state { u8 rc_repeat; u32 rc_keycode; u8 rc_last[4]; + + /* for demod callback override */ + int (*set_frontend[2]) (struct dvb_frontend *fe, + struct dvb_frontend_parameters *params); + int (*read_status[2]) (struct dvb_frontend *fe, fe_status_t *status); + int (*init[2]) (struct dvb_frontend *fe); + int (*sleep[2]) (struct dvb_frontend *fe); }; struct af9015_config { -- cgit v1.2.3 From d7d89dc85b9ec0e94f16e811d5f440106e2e77c0 Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Sun, 13 Nov 2011 00:22:33 -0300 Subject: [media] tda18218: fix 6 MHz default IF frequency Default IF for 6 MHz bandwidth is 3 MHz. Use that. Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/common/tuners/tda18218.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/common/tuners/tda18218.c b/drivers/media/common/tuners/tda18218.c index aacfe2387e2..4fc29730a12 100644 --- a/drivers/media/common/tuners/tda18218.c +++ b/drivers/media/common/tuners/tda18218.c @@ -141,7 +141,7 @@ static int tda18218_set_params(struct dvb_frontend *fe, switch (params->u.ofdm.bandwidth) { case BANDWIDTH_6_MHZ: LP_Fc = 0; - LO_Frac = params->frequency + 4000000; + LO_Frac = params->frequency + 3000000; break; case BANDWIDTH_7_MHZ: LP_Fc = 1; -- cgit v1.2.3 From 576b849ea7af9ac05dca3ca92bc62c7528e8f0ef Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Sun, 9 Oct 2011 08:59:16 -0300 Subject: [media] mxl5007t: fix reg read Register to read should be written to register 0xfb and then perform I2C read to get reg value. Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/common/tuners/mxl5007t.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/common/tuners/mxl5007t.c b/drivers/media/common/tuners/mxl5007t.c index 7eb1bf75cd0..5d02221e99d 100644 --- a/drivers/media/common/tuners/mxl5007t.c +++ b/drivers/media/common/tuners/mxl5007t.c @@ -488,9 +488,10 @@ static int mxl5007t_write_regs(struct mxl5007t_state *state, static int mxl5007t_read_reg(struct mxl5007t_state *state, u8 reg, u8 *val) { + u8 buf[2] = { 0xfb, reg }; struct i2c_msg msg[] = { { .addr = state->i2c_props.addr, .flags = 0, - .buf = ®, .len = 1 }, + .buf = buf, .len = 2 }, { .addr = state->i2c_props.addr, .flags = I2C_M_RD, .buf = val, .len = 1 }, }; -- cgit v1.2.3 From ffe06198876a3cbda1cd642883adcec5304d9442 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 24 Nov 2011 19:22:10 -0200 Subject: MAINTAINERS: Update media entries Now that we've created a /drivers/staging/media, put it together with /drivers/media. Also, added there a missing entry for the Media API spec. Signed-off-by: Mauro Carvalho Chehab --- MAINTAINERS | 2 ++ 1 file changed, 2 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index e839b95b272..273b0498e71 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4234,7 +4234,9 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git S: Maintained F: Documentation/dvb/ F: Documentation/video4linux/ +F: Documentation/DocBook/media/ F: drivers/media/ +F: drivers/staging/media/ F: include/media/ F: include/linux/dvb/ F: include/linux/videodev*.h -- cgit v1.2.3 From e067d5abdd04cbf1bed466f95682c67e2496ba42 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 16 Nov 2011 22:17:03 -0300 Subject: [media] media/staging: fix allyesconfig build error Fix x86 allyesconfig builds. Builds fail due to a non-static variable named 'debug' in drivers/staging/media/as102/. Signed-off-by: Randy Dunlap Cc: Pierrick Hascoet Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/as102/as102_drv.c | 4 ++-- drivers/staging/media/as102/as102_drv.h | 3 ++- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/staging/media/as102/as102_drv.c b/drivers/staging/media/as102/as102_drv.c index d335c7d6fa0..828526d4c28 100644 --- a/drivers/staging/media/as102/as102_drv.c +++ b/drivers/staging/media/as102/as102_drv.c @@ -32,8 +32,8 @@ #include "as102_fw.h" #include "dvbdev.h" -int debug; -module_param_named(debug, debug, int, 0644); +int as102_debug; +module_param_named(debug, as102_debug, int, 0644); MODULE_PARM_DESC(debug, "Turn on/off debugging (default: off)"); int dual_tuner; diff --git a/drivers/staging/media/as102/as102_drv.h b/drivers/staging/media/as102/as102_drv.h index bcda635b5a9..fd33f5a12dc 100644 --- a/drivers/staging/media/as102/as102_drv.h +++ b/drivers/staging/media/as102/as102_drv.h @@ -37,7 +37,8 @@ extern struct spi_driver as102_spi_driver; #define DRIVER_FULL_NAME "Abilis Systems as10x usb driver" #define DRIVER_NAME "as10x_usb" -extern int debug; +extern int as102_debug; +#define debug as102_debug #define dprintk(debug, args...) \ do { if (debug) { \ -- cgit v1.2.3 From 7acde02a5bf4d3c32cd197eb7ce2257e6a0e17b7 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Tue, 13 Sep 2011 14:07:09 -0300 Subject: [media] s5p-fimc: Fix wrong pointer dereference when unregistering sensors After i2c_unregister_device() has been called the client object can already be freed and thus using the client pointer may lead to dereferencing freed memory. Avoid this by saving the adapter pointer for further use before i2c_unregister_device() call. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-mdevice.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c index cc337b1de91..d558ae79e32 100644 --- a/drivers/media/video/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c @@ -220,6 +220,7 @@ static struct v4l2_subdev *fimc_md_register_sensor(struct fimc_md *fmd, sd = v4l2_i2c_new_subdev_board(&fmd->v4l2_dev, adapter, s_info->pdata->board_info, NULL); if (IS_ERR_OR_NULL(sd)) { + i2c_put_adapter(adapter); v4l2_err(&fmd->v4l2_dev, "Failed to acquire subdev\n"); return NULL; } @@ -234,12 +235,15 @@ static struct v4l2_subdev *fimc_md_register_sensor(struct fimc_md *fmd, static void fimc_md_unregister_sensor(struct v4l2_subdev *sd) { struct i2c_client *client = v4l2_get_subdevdata(sd); + struct i2c_adapter *adapter; if (!client) return; v4l2_device_unregister_subdev(sd); + adapter = client->adapter; i2c_unregister_device(client); - i2c_put_adapter(client->adapter); + if (adapter) + i2c_put_adapter(adapter); } static int fimc_md_register_sensor_entities(struct fimc_md *fmd) -- cgit v1.2.3 From 64c570f505a0eac4914402bb7832d019c44eabd8 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Sun, 11 Sep 2011 10:36:13 -0300 Subject: [media] s5p-fimc: Fix error in the capture subdev deinitialization Make sure the subdev pointer is cleared when the subdev object has been freed. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index c8d91b0cd9b..382dacd2313 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -1375,7 +1375,7 @@ static void fimc_destroy_capture_subdev(struct fimc_dev *fimc) media_entity_cleanup(&sd->entity); v4l2_device_unregister_subdev(sd); kfree(sd); - sd = NULL; + fimc->vid_cap.subdev = NULL; } /* Set default format at the sensor and host interface */ -- cgit v1.2.3 From 7aa9f1844a3aac428ef7977a9f1da706718afe0d Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 4 Nov 2011 09:59:52 -0300 Subject: [media] s5p-fimc: Fix initialization for proper system suspend support ST_LPM bit must not be initially set, so the first resume helper call properly quiesce the device's operation. Also fimc_runtime_suspend() at device remove is unneeded and leads to unbalanced clock disable so remove it. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-core.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c index 19ca6db38b2..ef53528934f 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.c +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -1615,7 +1615,6 @@ static int fimc_probe(struct platform_device *pdev) pdata = pdev->dev.platform_data; fimc->pdata = pdata; - set_bit(ST_LPM, &fimc->state); init_waitqueue_head(&fimc->irq_queue); spin_lock_init(&fimc->slock); @@ -1780,7 +1779,6 @@ static int __devexit fimc_remove(struct platform_device *pdev) struct fimc_dev *fimc = platform_get_drvdata(pdev); pm_runtime_disable(&pdev->dev); - fimc_runtime_suspend(&pdev->dev); pm_runtime_set_suspended(&pdev->dev); vb2_dma_contig_cleanup_ctx(fimc->alloc_ctx); -- cgit v1.2.3 From 2c1bb62e217f4f2eb6fa9734dcb331bc09c7768e Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Wed, 5 Oct 2011 14:20:45 -0300 Subject: [media] s5p-fimc: Fix buffer dequeue order issue When requested more than 2 buffers the buffer dequeue order was wrong due to erroneous updating FIMC registers in every interrupt handler call. This also fixes regression of resetting the output DMA buffer pointer at wrong time, when some buffers are already queued in hardware. The hardware is reset in the start_streaming callback in order to align the H/W state with the software output buffer pointer (buf_index). Additionally a simple write to S5P_CISCCTRL register is replaced with a read/modification/write to make sure the scaler is not being disabled in fimc_hw_set_scaler(). Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 9 ++++++--- drivers/media/video/s5p-fimc/fimc-core.c | 4 ---- drivers/media/video/s5p-fimc/fimc-reg.c | 15 ++++++++++++--- 3 files changed, 18 insertions(+), 10 deletions(-) diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 382dacd2313..70f741f7659 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -98,6 +98,10 @@ static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend) vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); } set_bit(ST_CAPT_SUSPENDED, &fimc->state); + + fimc_hw_reset(fimc); + cap->buf_index = 0; + spin_unlock_irqrestore(&fimc->slock, flags); if (streaming) @@ -137,7 +141,7 @@ int fimc_capture_config_update(struct fimc_ctx *ctx) struct fimc_dev *fimc = ctx->fimc_dev; int ret; - if (test_bit(ST_CAPT_APPLY_CFG, &fimc->state)) + if (!test_bit(ST_CAPT_APPLY_CFG, &fimc->state)) return 0; spin_lock(&ctx->slock); @@ -150,7 +154,7 @@ int fimc_capture_config_update(struct fimc_ctx *ctx) fimc_hw_set_rotation(ctx); fimc_prepare_dma_offset(ctx, &ctx->d_frame); fimc_hw_set_out_dma(ctx); - set_bit(ST_CAPT_APPLY_CFG, &fimc->state); + clear_bit(ST_CAPT_APPLY_CFG, &fimc->state); } spin_unlock(&ctx->slock); return ret; @@ -164,7 +168,6 @@ static int start_streaming(struct vb2_queue *q, unsigned int count) int min_bufs; int ret; - fimc_hw_reset(fimc); vid_cap->frame_count = 0; ret = fimc_init_capture(fimc); diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c index ef53528934f..9c3a8c51da4 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.c +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -1706,8 +1706,6 @@ static int fimc_runtime_resume(struct device *dev) /* Enable clocks and perform basic initalization */ clk_enable(fimc->clock[CLK_GATE]); fimc_hw_reset(fimc); - if (fimc->variant->out_buf_count > 4) - fimc_hw_set_dma_seq(fimc, 0xF); /* Resume the capture or mem-to-mem device */ if (fimc_capture_busy(fimc)) @@ -1749,8 +1747,6 @@ static int fimc_resume(struct device *dev) return 0; } fimc_hw_reset(fimc); - if (fimc->variant->out_buf_count > 4) - fimc_hw_set_dma_seq(fimc, 0xF); spin_unlock_irqrestore(&fimc->slock, flags); if (fimc_capture_busy(fimc)) diff --git a/drivers/media/video/s5p-fimc/fimc-reg.c b/drivers/media/video/s5p-fimc/fimc-reg.c index 20e664e3416..44f5c2d1920 100644 --- a/drivers/media/video/s5p-fimc/fimc-reg.c +++ b/drivers/media/video/s5p-fimc/fimc-reg.c @@ -35,6 +35,9 @@ void fimc_hw_reset(struct fimc_dev *dev) cfg = readl(dev->regs + S5P_CIGCTRL); cfg &= ~S5P_CIGCTRL_SWRST; writel(cfg, dev->regs + S5P_CIGCTRL); + + if (dev->variant->out_buf_count > 4) + fimc_hw_set_dma_seq(dev, 0xF); } static u32 fimc_hw_get_in_flip(struct fimc_ctx *ctx) @@ -251,7 +254,14 @@ static void fimc_hw_set_scaler(struct fimc_ctx *ctx) struct fimc_scaler *sc = &ctx->scaler; struct fimc_frame *src_frame = &ctx->s_frame; struct fimc_frame *dst_frame = &ctx->d_frame; - u32 cfg = 0; + + u32 cfg = readl(dev->regs + S5P_CISCCTRL); + + cfg &= ~(S5P_CISCCTRL_CSCR2Y_WIDE | S5P_CISCCTRL_CSCY2R_WIDE | + S5P_CISCCTRL_SCALEUP_H | S5P_CISCCTRL_SCALEUP_V | + S5P_CISCCTRL_SCALERBYPASS | S5P_CISCCTRL_ONE2ONE | + S5P_CISCCTRL_INRGB_FMT_MASK | S5P_CISCCTRL_OUTRGB_FMT_MASK | + S5P_CISCCTRL_INTERLACE | S5P_CISCCTRL_RGB_EXT); if (!(ctx->flags & FIMC_COLOR_RANGE_NARROW)) cfg |= (S5P_CISCCTRL_CSCR2Y_WIDE | S5P_CISCCTRL_CSCY2R_WIDE); @@ -308,9 +318,9 @@ void fimc_hw_set_mainscaler(struct fimc_ctx *ctx) fimc_hw_set_scaler(ctx); cfg = readl(dev->regs + S5P_CISCCTRL); + cfg &= ~(S5P_CISCCTRL_MHRATIO_MASK | S5P_CISCCTRL_MVRATIO_MASK); if (variant->has_mainscaler_ext) { - cfg &= ~(S5P_CISCCTRL_MHRATIO_MASK | S5P_CISCCTRL_MVRATIO_MASK); cfg |= S5P_CISCCTRL_MHRATIO_EXT(sc->main_hratio); cfg |= S5P_CISCCTRL_MVRATIO_EXT(sc->main_vratio); writel(cfg, dev->regs + S5P_CISCCTRL); @@ -323,7 +333,6 @@ void fimc_hw_set_mainscaler(struct fimc_ctx *ctx) cfg |= S5P_CIEXTEN_MVRATIO_EXT(sc->main_vratio); writel(cfg, dev->regs + S5P_CIEXTEN); } else { - cfg &= ~(S5P_CISCCTRL_MHRATIO_MASK | S5P_CISCCTRL_MVRATIO_MASK); cfg |= S5P_CISCCTRL_MHRATIO(sc->main_hratio); cfg |= S5P_CISCCTRL_MVRATIO(sc->main_vratio); writel(cfg, dev->regs + S5P_CISCCTRL); -- cgit v1.2.3 From 5cbf6f16ecc07e9f73107c1adf95013bce9f2cf6 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 7 Oct 2011 07:40:00 -0300 Subject: [media] s5p-fimc: Allow probe() to succeed with null platform data The "s5p-fimc-md" platform device platform_data is used to pass attached camera sensor data. Not allowing device probe() to succeed when it's null prevents using FIMC as a mem-to-mem device only. Fix this by removing the platform_data check against null and registering sensors only if platform_data is specified. Also add logging of the information which /dev/video is assigned to which device during probe(). Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-mdevice.c | 35 +++++++++++++++++------------ 1 file changed, 21 insertions(+), 14 deletions(-) diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c index d558ae79e32..fc81f6faa39 100644 --- a/drivers/media/video/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c @@ -385,20 +385,28 @@ static void fimc_md_unregister_entities(struct fimc_md *fmd) static int fimc_md_register_video_nodes(struct fimc_md *fmd) { + struct video_device *vdev; int i, ret = 0; for (i = 0; i < FIMC_MAX_DEVS && !ret; i++) { if (!fmd->fimc[i]) continue; - if (fmd->fimc[i]->m2m.vfd) - ret = video_register_device(fmd->fimc[i]->m2m.vfd, - VFL_TYPE_GRABBER, -1); - if (ret) - break; - if (fmd->fimc[i]->vid_cap.vfd) - ret = video_register_device(fmd->fimc[i]->vid_cap.vfd, - VFL_TYPE_GRABBER, -1); + vdev = fmd->fimc[i]->m2m.vfd; + if (vdev) { + ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); + if (ret) + break; + v4l2_info(&fmd->v4l2_dev, "Registered %s as /dev/%s\n", + vdev->name, video_device_node_name(vdev)); + } + + vdev = fmd->fimc[i]->vid_cap.vfd; + if (vdev == NULL) + continue; + ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); + v4l2_info(&fmd->v4l2_dev, "Registered %s as /dev/%s\n", + vdev->name, video_device_node_name(vdev)); } return ret; @@ -746,9 +754,6 @@ static int __devinit fimc_md_probe(struct platform_device *pdev) struct fimc_md *fmd; int ret; - if (WARN(!pdev->dev.platform_data, "Platform data not specified!\n")) - return -EINVAL; - fmd = kzalloc(sizeof(struct fimc_md), GFP_KERNEL); if (!fmd) return -ENOMEM; @@ -786,9 +791,11 @@ static int __devinit fimc_md_probe(struct platform_device *pdev) if (ret) goto err3; - ret = fimc_md_register_sensor_entities(fmd); - if (ret) - goto err3; + if (pdev->dev.platform_data) { + ret = fimc_md_register_sensor_entities(fmd); + if (ret) + goto err3; + } ret = fimc_md_create_links(fmd); if (ret) goto err3; -- cgit v1.2.3 From 9c63afcb02b4313838d83c3660e45544d9fc9976 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 27 May 2011 13:12:23 -0300 Subject: [media] s5p-fimc: Adjust pixel height alignments according to the IP revision Minimum vertical pixel size alignment for input and output DMA and the scaler depend on color format, rotation, the IP instance and revision. Make vertical pixel size of format and crop better fit for each SoC revision and the IP instance by adding min_vsize_align attribute to the FIMC variant data structure. It's now common for the DMA engines and the scaler. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 2 +- drivers/media/video/s5p-fimc/fimc-core.c | 16 +++++++++++----- drivers/media/video/s5p-fimc/fimc-core.h | 2 ++ 3 files changed, 14 insertions(+), 6 deletions(-) diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 70f741f7659..82d9ab6984e 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -526,7 +526,7 @@ static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx, max_w = rotation ? pl->out_rot_en_w : pl->out_rot_dis_w; min_w = ctx->state & FIMC_DST_CROP ? dst->width : var->min_out_pixsize; min_h = ctx->state & FIMC_DST_CROP ? dst->height : var->min_out_pixsize; - if (fimc->id == 1 && var->pix_hoff) + if (var->min_vsize_align == 1 && !rotation) align_h = fimc_fmt_is_rgb(ffmt->color) ? 0 : 1; depth = fimc_get_format_depth(ffmt); diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c index 9c3a8c51da4..7c22d78b056 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.c +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -1038,12 +1038,11 @@ static int fimc_try_fmt_mplane(struct fimc_ctx *ctx, struct v4l2_format *f) mod_x = 6; /* 64 x 32 pixels tile */ mod_y = 5; } else { - if (fimc->id == 1 && variant->pix_hoff) + if (variant->min_vsize_align == 1) mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1; else - mod_y = mod_x; + mod_y = ffs(variant->min_vsize_align) - 1; } - dbg("mod_x: %d, mod_y: %d, max_w: %d", mod_x, mod_y, max_w); v4l_bound_align_image(&pix->width, 16, max_w, mod_x, &pix->height, 8, variant->pix_limit->scaler_dis_w, mod_y, 0); @@ -1226,10 +1225,10 @@ static int fimc_m2m_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr) fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize; /* Get pixel alignment constraints. */ - if (fimc->id == 1 && fimc->variant->pix_hoff) + if (fimc->variant->min_vsize_align == 1) halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1; else - halign = ffs(min_size) - 1; + halign = ffs(fimc->variant->min_vsize_align) - 1; for (i = 0; i < f->fmt->colplanes; i++) depth += f->fmt->depth[i]; @@ -1834,6 +1833,7 @@ static struct samsung_fimc_variant fimc0_variant_s5p = { .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 8, + .min_vsize_align = 16, .out_buf_count = 4, .pix_limit = &s5p_pix_limit[0], }; @@ -1843,6 +1843,7 @@ static struct samsung_fimc_variant fimc2_variant_s5p = { .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 8, + .min_vsize_align = 16, .out_buf_count = 4, .pix_limit = &s5p_pix_limit[1], }; @@ -1855,6 +1856,7 @@ static struct samsung_fimc_variant fimc0_variant_s5pv210 = { .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 8, + .min_vsize_align = 16, .out_buf_count = 4, .pix_limit = &s5p_pix_limit[1], }; @@ -1868,6 +1870,7 @@ static struct samsung_fimc_variant fimc1_variant_s5pv210 = { .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 1, + .min_vsize_align = 1, .out_buf_count = 4, .pix_limit = &s5p_pix_limit[2], }; @@ -1878,6 +1881,7 @@ static struct samsung_fimc_variant fimc2_variant_s5pv210 = { .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 8, + .min_vsize_align = 16, .out_buf_count = 4, .pix_limit = &s5p_pix_limit[2], }; @@ -1892,6 +1896,7 @@ static struct samsung_fimc_variant fimc0_variant_exynos4 = { .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 2, + .min_vsize_align = 1, .out_buf_count = 32, .pix_limit = &s5p_pix_limit[1], }; @@ -1904,6 +1909,7 @@ static struct samsung_fimc_variant fimc3_variant_exynos4 = { .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 2, + .min_vsize_align = 1, .out_buf_count = 32, .pix_limit = &s5p_pix_limit[3], }; diff --git a/drivers/media/video/s5p-fimc/fimc-core.h b/drivers/media/video/s5p-fimc/fimc-core.h index a6936dad5b1..c7f01c47b20 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.h +++ b/drivers/media/video/s5p-fimc/fimc-core.h @@ -377,6 +377,7 @@ struct fimc_pix_limit { * @min_inp_pixsize: minimum input pixel size * @min_out_pixsize: minimum output pixel size * @hor_offs_align: horizontal pixel offset aligment + * @min_vsize_align: minimum vertical pixel size alignment * @out_buf_count: the number of buffers in output DMA sequence */ struct samsung_fimc_variant { @@ -390,6 +391,7 @@ struct samsung_fimc_variant { u16 min_inp_pixsize; u16 min_out_pixsize; u16 hor_offs_align; + u16 min_vsize_align; u16 out_buf_count; }; -- cgit v1.2.3 From d12392ec006d94e5cf6c98f7ed56ff0c881ec33f Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 20 Oct 2011 05:15:59 -0300 Subject: [media] s5p-fimc: Fail driver probing when sensor configuration is wrong When a sensor with MIPI-CSI interface is attached through platform data definition and the MIPI-CSI receiver is not selected in kernel configuration s5p-fimc driver probe() will now succeed, issuing only a warning. It was done this way to allow the driver to work even if system configuration is not exactly right. Instead make the driver's probe() fail if a MIPI-CSI sensor was requested but s5p-csis module is not present. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-mdevice.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c index fc81f6faa39..615c862f036 100644 --- a/drivers/media/video/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c @@ -514,7 +514,7 @@ static int fimc_md_create_links(struct fimc_md *fmd) if (WARN(csis == NULL, "MIPI-CSI interface specified " "but s5p-csis module is not loaded!\n")) - continue; + return -EINVAL; ret = media_entity_create_link(&sensor->entity, 0, &csis->entity, CSIS_PAD_SINK, -- cgit v1.2.3 From f83f71fda27650ae43558633be93652577dbc38c Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 4 Nov 2011 10:07:06 -0300 Subject: [media] s5p-fimc: Use correct fourcc for RGB565 colour format With 16-bit RGB565 colour format pixels are stored by the device in memory in the following order: | b3 | b2 | b1 | b0 | ~+-----+-----+-----+-----+ | R5 G6 B5 | R5 G6 B5 | This corresponds to V4L2_PIX_FMT_RGB565 fourcc, not V4L2_PIX_FMT_RGB565X. This change is required to avoid trouble when setting up video pipeline with the s5p-tv devices, so the colour formats at both devices can be properly matched. Cc: Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c index 7c22d78b056..07c6254faee 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.c +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -37,7 +37,7 @@ static char *fimc_clocks[MAX_FIMC_CLOCKS] = { static struct fimc_fmt fimc_formats[] = { { .name = "RGB565", - .fourcc = V4L2_PIX_FMT_RGB565X, + .fourcc = V4L2_PIX_FMT_RGB565, .depth = { 16 }, .color = S5P_FIMC_RGB565, .memplanes = 1, -- cgit v1.2.3 From fbe78ddde1f217044ed854eff92e4d22112871cb Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Wed, 16 Nov 2011 08:19:58 -0300 Subject: [media] m5mols: Fix set_fmt to return proper pixel format code In case pixel format is modified in set_fmt by the driver, the changes are not propagated back to the caller. Fix this by adjusting passed data for TRY and ACTIVE format. Also remove redundant pixel format code information from struct m5mols_info, it's already available in 'ffmt' array. Remove pad number validation in set/get_fmt, this is already done in the core. Signed-off-by: Sylwester Nawrocki Acked-by: HeungJun Kim Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/m5mols/m5mols.h | 2 -- drivers/media/video/m5mols/m5mols_core.c | 20 ++++++++------------ 2 files changed, 8 insertions(+), 14 deletions(-) diff --git a/drivers/media/video/m5mols/m5mols.h b/drivers/media/video/m5mols/m5mols.h index 89d09a8914f..82c8817bd32 100644 --- a/drivers/media/video/m5mols/m5mols.h +++ b/drivers/media/video/m5mols/m5mols.h @@ -162,7 +162,6 @@ struct m5mols_version { * @pad: media pad * @ffmt: current fmt according to resolution type * @res_type: current resolution type - * @code: current code * @irq_waitq: waitqueue for the capture * @work_irq: workqueue for the IRQ * @flags: state variable for the interrupt handler @@ -192,7 +191,6 @@ struct m5mols_info { struct media_pad pad; struct v4l2_mbus_framefmt ffmt[M5MOLS_RESTYPE_MAX]; int res_type; - enum v4l2_mbus_pixelcode code; wait_queue_head_t irq_waitq; struct work_struct work_irq; unsigned long flags; diff --git a/drivers/media/video/m5mols/m5mols_core.c b/drivers/media/video/m5mols/m5mols_core.c index 5d21d056d6a..68497f8ddcd 100644 --- a/drivers/media/video/m5mols/m5mols_core.c +++ b/drivers/media/video/m5mols/m5mols_core.c @@ -510,9 +510,6 @@ static int m5mols_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, struct m5mols_info *info = to_m5mols(sd); struct v4l2_mbus_framefmt *format; - if (fmt->pad != 0) - return -EINVAL; - format = __find_format(info, fh, fmt->which, info->res_type); if (!format) return -EINVAL; @@ -531,9 +528,6 @@ static int m5mols_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, u32 resolution = 0; int ret; - if (fmt->pad != 0) - return -EINVAL; - ret = __find_resolution(sd, format, &type, &resolution); if (ret < 0) return ret; @@ -542,13 +536,14 @@ static int m5mols_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, if (!sfmt) return 0; - *sfmt = m5mols_default_ffmt[type]; - sfmt->width = format->width; - sfmt->height = format->height; + + format->code = m5mols_default_ffmt[type].code; + format->colorspace = V4L2_COLORSPACE_JPEG; + format->field = V4L2_FIELD_NONE; if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { + *sfmt = *format; info->resolution = resolution; - info->code = format->code; info->res_type = type; } @@ -625,13 +620,14 @@ static int m5mols_start_monitor(struct m5mols_info *info) static int m5mols_s_stream(struct v4l2_subdev *sd, int enable) { struct m5mols_info *info = to_m5mols(sd); + u32 code = info->ffmt[info->res_type].code; if (enable) { int ret = -EINVAL; - if (is_code(info->code, M5MOLS_RESTYPE_MONITOR)) + if (is_code(code, M5MOLS_RESTYPE_MONITOR)) ret = m5mols_start_monitor(info); - if (is_code(info->code, M5MOLS_RESTYPE_CAPTURE)) + if (is_code(code, M5MOLS_RESTYPE_CAPTURE)) ret = m5mols_start_capture(info); return ret; -- cgit v1.2.3 From 025521f917b9a36d76fb701609b3578b1563818b Mon Sep 17 00:00:00 2001 From: Dmitry Artamonow Date: Sun, 20 Nov 2011 12:54:26 -0300 Subject: [media] omap3isp: fix compilation of ispvideo.c Fix following build error by explicitely including header file. CC drivers/media/video/omap3isp/ispvideo.o Signed-off-by: Dmitry Artamonow Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/omap3isp/ispvideo.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/omap3isp/ispvideo.c b/drivers/media/video/omap3isp/ispvideo.c index d1000723c5a..f2290578448 100644 --- a/drivers/media/video/omap3isp/ispvideo.c +++ b/drivers/media/video/omap3isp/ispvideo.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From fc8ac777ae39409e81f7dd2d123d980c0dfb528e Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Mon, 21 Nov 2011 05:02:38 -0300 Subject: [media] media: video: s5p-tv: fix build break This patch fixes following build break: Signed-off-by: Marek Szyprowski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-tv/mixer_video.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/s5p-tv/mixer_video.c b/drivers/media/video/s5p-tv/mixer_video.c index e16d3a4bc1d..b47d0c06ecf 100644 --- a/drivers/media/video/s5p-tv/mixer_video.c +++ b/drivers/media/video/s5p-tv/mixer_video.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From ae95757a9065d89be7c1ca613b53163dd30858b7 Mon Sep 17 00:00:00 2001 From: Dave Young Date: Fri, 25 Nov 2011 09:41:25 +0100 Subject: loop: fix loop block driver discard and encryption comment The loop driver does not support discard if encryption is enabled, fix the comment. Signed-off-by: Dave Young Signed-off-by: Jens Axboe --- drivers/block/loop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 68b205a9338..5579fda279b 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -422,7 +422,7 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio) /* * We use punch hole to reclaim the free space used by the - * image a.k.a. discard. However we do support discard if + * image a.k.a. discard. However we do not support discard if * encryption is enabled, because it may give an attacker * useful information. */ -- cgit v1.2.3 From 6225da481597ebff09454c785fe0afc7f5fdbb77 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" Date: Mon, 28 Nov 2011 20:12:05 +0100 Subject: cciss: Add IRQF_SHARED back in for the non-MSI(X) interrupt handler IRQF_SHARED is required for older controllers that don't support MSI(X) and which may end up sharing an interrupt. Also remove deprecated IRQF_DISABLED. Signed-off-by: Stephen M. Cameron Signed-off-by: Jens Axboe --- drivers/block/cciss.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 8004ac30a7a..6f22ed0dab6 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -4880,7 +4880,7 @@ static int cciss_request_irq(ctlr_info_t *h, { if (h->msix_vector || h->msi_vector) { if (!request_irq(h->intr[h->intr_mode], msixhandler, - IRQF_DISABLED, h->devname, h)) + 0, h->devname, h)) return 0; dev_err(&h->pdev->dev, "Unable to get msi irq %d" " for %s\n", h->intr[h->intr_mode], @@ -4889,7 +4889,7 @@ static int cciss_request_irq(ctlr_info_t *h, } if (!request_irq(h->intr[h->intr_mode], intxhandler, - IRQF_DISABLED, h->devname, h)) + IRQF_SHARED, h->devname, h)) return 0; dev_err(&h->pdev->dev, "Unable to get irq %d for %s\n", h->intr[h->intr_mode], h->devname); -- cgit v1.2.3 From 59bd71a81b66990564eac69aedd28ad87a2c81f4 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" Date: Mon, 28 Nov 2011 20:12:05 +0100 Subject: cciss: fix flush cache transfer length We weren't filling in the transfer length of the flush cache command (it transfers 4 bytes of zeroes). Firmware didn't seem to be bothered by this, but it should be fixed. Signed-off-by: Stephen M. Cameron Signed-off-by: Jens Axboe --- drivers/block/cciss.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 6f22ed0dab6..587cce57ada 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -2601,6 +2601,8 @@ static int fill_cmd(ctlr_info_t *h, CommandList_struct *c, __u8 cmd, void *buff, c->Request.Timeout = 0; c->Request.CDB[0] = BMIC_WRITE; c->Request.CDB[6] = BMIC_CACHE_FLUSH; + c->Request.CDB[7] = (size >> 8) & 0xFF; + c->Request.CDB[8] = size & 0xFF; break; case TEST_UNIT_READY: c->Request.CDBLen = 6; -- cgit v1.2.3 From 786228ab3095fe18dba3bc0d62055a123991d9d9 Mon Sep 17 00:00:00 2001 From: Marcos Paulo de Souza Date: Wed, 23 Nov 2011 20:56:45 +0800 Subject: writeback: Fix issue on make htmldocs Document the @reason parameter to make "make htmldocs" happy. Acked-by: Randy Dunlap Signed-off-by: Marcos Paulo de Souza Signed-off-by: Wu Fengguang --- fs/fs-writeback.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 73c3992b2bb..ac86f8b3e3c 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -156,6 +156,7 @@ __bdi_start_writeback(struct backing_dev_info *bdi, long nr_pages, * bdi_start_writeback - start writeback * @bdi: the backing device to write from * @nr_pages: the number of pages to write + * @reason: reason why some writeback work was initiated * * Description: * This does WB_SYNC_NONE opportunistic writeback. The IO is only @@ -1223,6 +1224,7 @@ static void wait_sb_inodes(struct super_block *sb) * writeback_inodes_sb_nr - writeback dirty inodes from given super_block * @sb: the superblock * @nr: the number of pages to write + * @reason: reason why some writeback work initiated * * Start writeback on some inodes on this super_block. No guarantees are made * on how many (if any) will be written, and this function does not wait @@ -1251,6 +1253,7 @@ EXPORT_SYMBOL(writeback_inodes_sb_nr); /** * writeback_inodes_sb - writeback dirty inodes from given super_block * @sb: the superblock + * @reason: reason why some writeback work was initiated * * Start writeback on some inodes on this super_block. No guarantees are made * on how many (if any) will be written, and this function does not wait @@ -1265,6 +1268,7 @@ EXPORT_SYMBOL(writeback_inodes_sb); /** * writeback_inodes_sb_if_idle - start writeback if none underway * @sb: the superblock + * @reason: reason why some writeback work was initiated * * Invoke writeback_inodes_sb if no writeback is currently underway. * Returns 1 if writeback was started, 0 if not. @@ -1285,6 +1289,7 @@ EXPORT_SYMBOL(writeback_inodes_sb_if_idle); * writeback_inodes_sb_if_idle - start writeback if none underway * @sb: the superblock * @nr: the number of pages to write + * @reason: reason why some writeback work was initiated * * Invoke writeback_inodes_sb if no writeback is currently underway. * Returns 1 if writeback was started, 0 if not. -- cgit v1.2.3 From 2984ff38ccf6cbc02a7a996a36c7d6f69f3c6146 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Wed, 30 Nov 2011 15:47:48 +0100 Subject: cfq-iosched: free cic_index if blkio_alloc_blkg_stats fails If we fail allocating the blkpg stats, we free cfqd and cfgq. But we need to free the IDA cfqd->cic_index as well. Signed-off-by: majianpeng Cc: stable@kernel.org Signed-off-by: Jens Axboe --- block/cfq-iosched.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 16ace89613b..3beed83437a 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -4036,6 +4036,11 @@ static void *cfq_init_queue(struct request_queue *q) if (blkio_alloc_blkg_stats(&cfqg->blkg)) { kfree(cfqg); + + spin_lock(&cic_index_lock); + ida_remove(&cic_index_ida, cfqd->cic_index); + spin_unlock(&cic_index_lock); + kfree(cfqd); return NULL; } -- cgit v1.2.3 From 7fdcf13b292e8b2e38e42de24be2503e37b2cf97 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 1 Dec 2011 14:00:15 -0500 Subject: SUNRPC: Fix the execution time statistics in the face of RPC restarts If the rpc_task gets restarted, then we want to ensure that we don't double-count the execution time statistics, timeout data, etc. Signed-off-by: Trond Myklebust --- net/sunrpc/sched.c | 30 +++++++++++++++++++++++------- 1 file changed, 23 insertions(+), 7 deletions(-) diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c index d12ffa54581..00a1a2acd58 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c @@ -590,6 +590,27 @@ void rpc_prepare_task(struct rpc_task *task) task->tk_ops->rpc_call_prepare(task, task->tk_calldata); } +static void +rpc_init_task_statistics(struct rpc_task *task) +{ + /* Initialize retry counters */ + task->tk_garb_retry = 2; + task->tk_cred_retry = 2; + task->tk_rebind_retry = 2; + + /* starting timestamp */ + task->tk_start = ktime_get(); +} + +static void +rpc_reset_task_statistics(struct rpc_task *task) +{ + task->tk_timeouts = 0; + task->tk_flags &= ~(RPC_CALL_MAJORSEEN|RPC_TASK_KILLED|RPC_TASK_SENT); + + rpc_init_task_statistics(task); +} + /* * Helper that calls task->tk_ops->rpc_call_done if it exists */ @@ -602,6 +623,7 @@ void rpc_exit_task(struct rpc_task *task) WARN_ON(RPC_ASSASSINATED(task)); /* Always release the RPC slot and buffer memory */ xprt_release(task); + rpc_reset_task_statistics(task); } } } @@ -804,11 +826,6 @@ static void rpc_init_task(struct rpc_task *task, const struct rpc_task_setup *ta task->tk_calldata = task_setup_data->callback_data; INIT_LIST_HEAD(&task->tk_task); - /* Initialize retry counters */ - task->tk_garb_retry = 2; - task->tk_cred_retry = 2; - task->tk_rebind_retry = 2; - task->tk_priority = task_setup_data->priority - RPC_PRIORITY_LOW; task->tk_owner = current->tgid; @@ -818,8 +835,7 @@ static void rpc_init_task(struct rpc_task *task, const struct rpc_task_setup *ta if (task->tk_ops->rpc_call_prepare != NULL) task->tk_action = rpc_prepare_task; - /* starting timestamp */ - task->tk_start = ktime_get(); + rpc_init_task_statistics(task); dprintk("RPC: new task initialized, procpid %u\n", task_pid_nr(current)); -- cgit v1.2.3 From c25573b5134294c0be82bfaecc6d08136835b271 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 1 Dec 2011 14:16:17 -0500 Subject: SUNRPC: Ensure we always bump the backlog queue in xprt_free_slot Whenever we free a slot, we know that the resulting xprt->num_reqs will be less than xprt->max_reqs, so we know that we can release at least one backlogged rpc_task. Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org [>=3.1] --- net/sunrpc/xprt.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index f4385e45a5f..c64c0ef519b 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -995,13 +995,11 @@ out_init_req: static void xprt_free_slot(struct rpc_xprt *xprt, struct rpc_rqst *req) { - if (xprt_dynamic_free_slot(xprt, req)) - return; - - memset(req, 0, sizeof(*req)); /* mark unused */ - spin_lock(&xprt->reserve_lock); - list_add(&req->rq_list, &xprt->free); + if (!xprt_dynamic_free_slot(xprt, req)) { + memset(req, 0, sizeof(*req)); /* mark unused */ + list_add(&req->rq_list, &xprt->free); + } rpc_wake_up_next(&xprt->backlog); spin_unlock(&xprt->reserve_lock); } -- cgit v1.2.3 From 4f38e4aadcca319650c0de31edf7193d7c384de2 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 1 Dec 2011 16:31:34 -0500 Subject: NFSv4: Don't error if we handled it in nfs4_recovery_handle_error If we handled an error condition, then nfs4_recovery_handle_error should return '0' so that the state recovery thread can continue. Also ensure that nfs4_check_lease() continues to abort if we haven't got any credentials by having it return ENOKEY (which is not handled). Signed-off-by: Trond Myklebust --- fs/nfs/nfs4state.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 39914be40b0..1da95e3947b 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1350,12 +1350,14 @@ static void nfs4_warn_keyexpired(const char *s) static int nfs4_recovery_handle_error(struct nfs_client *clp, int error) { switch (error) { + case 0: + break; case -NFS4ERR_CB_PATH_DOWN: nfs_handle_cb_pathdown(clp); - return 0; + break; case -NFS4ERR_NO_GRACE: nfs4_state_end_reclaim_reboot(clp); - return 0; + break; case -NFS4ERR_STALE_CLIENTID: case -NFS4ERR_LEASE_MOVED: set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state); @@ -1375,13 +1377,15 @@ static int nfs4_recovery_handle_error(struct nfs_client *clp, int error) case -NFS4ERR_SEQ_MISORDERED: set_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state); /* Zero session reset errors */ - return 0; + break; case -EKEYEXPIRED: /* Nothing we can do */ nfs4_warn_keyexpired(clp->cl_hostname); - return 0; + break; + default: + return error; } - return error; + return 0; } static int nfs4_do_reclaim(struct nfs_client *clp, const struct nfs4_state_recovery_ops *ops) @@ -1428,7 +1432,7 @@ static int nfs4_check_lease(struct nfs_client *clp) struct rpc_cred *cred; const struct nfs4_state_maintenance_ops *ops = clp->cl_mvops->state_renewal_ops; - int status = -NFS4ERR_EXPIRED; + int status; /* Is the client already known to have an expired lease? */ if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state)) @@ -1438,6 +1442,7 @@ static int nfs4_check_lease(struct nfs_client *clp) spin_unlock(&clp->cl_lock); if (cred == NULL) { cred = nfs4_get_setclientid_cred(clp); + status = -ENOKEY; if (cred == NULL) goto out; } @@ -1662,10 +1667,10 @@ static void nfs4_state_manager(struct nfs_client *clp) if (test_and_clear_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state)) { status = nfs4_check_lease(clp); + if (status < 0) + goto out_error; if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state)) continue; - if (status < 0 && status != -NFS4ERR_CB_PATH_DOWN) - goto out_error; } /* Initialize or reset the session */ -- cgit v1.2.3 From 111d489f0fb431f4ae85d96851fbf8d3248c09d8 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 1 Dec 2011 16:37:42 -0500 Subject: NFSv4.1: Ensure that we handle _all_ SEQUENCE status bits. Currently, the code assumes that the SEQUENCE status bits are mutually exclusive. They are not... Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org [>= 2.6.34] --- fs/nfs/nfs4state.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 1da95e3947b..da8d73ed9e0 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1530,16 +1530,16 @@ void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags) { if (!flags) return; - else if (flags & SEQ4_STATUS_RESTART_RECLAIM_NEEDED) + if (flags & SEQ4_STATUS_RESTART_RECLAIM_NEEDED) nfs41_handle_server_reboot(clp); - else if (flags & (SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED | + if (flags & (SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED | SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED | SEQ4_STATUS_ADMIN_STATE_REVOKED | SEQ4_STATUS_LEASE_MOVED)) nfs41_handle_state_revoked(clp); - else if (flags & SEQ4_STATUS_RECALLABLE_STATE_REVOKED) + if (flags & SEQ4_STATUS_RECALLABLE_STATE_REVOKED) nfs41_handle_recallable_state_revoked(clp); - else if (flags & (SEQ4_STATUS_CB_PATH_DOWN | + if (flags & (SEQ4_STATUS_CB_PATH_DOWN | SEQ4_STATUS_BACKCHANNEL_FAULT | SEQ4_STATUS_CB_PATH_DOWN_SESSION)) nfs41_handle_cb_path_down(clp); -- cgit v1.2.3 From a50527b19c62c808a7fca022816fff88a50b948d Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Fri, 2 Dec 2011 09:17:02 +0800 Subject: fs: Make write(2) interruptible by a fatal signal Currently write(2) to a file is not interruptible by any signal. Sometimes this is desirable, e.g. when you want to quickly kill a process hogging your disk. Also, with commit 499d05ecf990 ("mm: Make task in balance_dirty_pages() killable"), it's necessary to abort the current write accordingly to avoid it quickly dirtying lots more pages at unthrottled rate. This patch makes write interruptible by SIGKILL. We do not allow write to be interruptible by any other signal because that has larger potential of screwing some badly written applications. Reported-by: Kazuya Mio Tested-by: Kazuya Mio Acked-by: Matthew Wilcox Signed-off-by: Jan Kara Signed-off-by: Wu Fengguang --- mm/filemap.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/mm/filemap.c b/mm/filemap.c index c0018f2d50e..c106d3b3cc6 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2407,7 +2407,6 @@ static ssize_t generic_perform_write(struct file *file, iov_iter_count(i)); again: - /* * Bring in the user page that we will copy from _first_. * Otherwise there's a nasty deadlock on copying from the @@ -2463,7 +2462,10 @@ again: written += copied; balance_dirty_pages_ratelimited(mapping); - + if (fatal_signal_pending(current)) { + status = -EINTR; + break; + } } while (iov_iter_count(i)); return written ? written : status; -- cgit v1.2.3 From 5eb46851de3904cd1be9192fdacb8d34deadc1fc Mon Sep 17 00:00:00 2001 From: Yasuaki Ishimatsu Date: Fri, 2 Dec 2011 10:07:07 +0100 Subject: cfq-iosched: fix cfq_cic_link() race confition cfq_cic_link() has race condition. When some processes which shared ioc issue I/O to same block device simultaneously, cfq_cic_link() returns -EEXIST sometimes. The race condition might stop I/O by following steps: step 1: Process A: Issue an I/O to /dev/sda step 2: Process A: Get an ioc (iocA here) in get_io_context() which does not linked with a cic for the device step 3: Process A: Get a new cic for the device (cicA here) in cfq_alloc_io_context() step 4: Process B: Issue an I/O to /dev/sda step 5: Process B: Get iocA in get_io_context() since process A and B share the same ioc step 6: Process B: Get a new cic for the device (cicB here) in cfq_alloc_io_context() since iocA has not been linked with a cic for the device yet step 7: Process A: Link cicA to iocA in cfq_cic_link() step 8: Process A: Dispatch I/O to driver and finish it step 9: Process B: Try to link cicB to iocA in cfq_cic_link() But it fails with showing "cfq: cic link failed!" kernel message, since iocA has already linked with cicA at step 7. step 10: Process B: Wait for finishig I/O in get_request_wait() The function does not wake up, when there is no I/O to the device. When cfq_cic_link() returns -EEXIST, it means ioc has already linked with cic. So when cfq_cic_link() return -EEXIST, retry cfq_cic_lookup(). Signed-off-by: Yasuaki Ishimatsu Cc: stable@kernel.org Signed-off-by: Jens Axboe --- block/cfq-iosched.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 3beed83437a..4c12869fcf7 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -3184,7 +3184,7 @@ static int cfq_cic_link(struct cfq_data *cfqd, struct io_context *ioc, } } - if (ret) + if (ret && ret != -EEXIST) printk(KERN_ERR "cfq: cic link failed!\n"); return ret; @@ -3200,6 +3200,7 @@ cfq_get_io_context(struct cfq_data *cfqd, gfp_t gfp_mask) { struct io_context *ioc = NULL; struct cfq_io_context *cic; + int ret; might_sleep_if(gfp_mask & __GFP_WAIT); @@ -3207,6 +3208,7 @@ cfq_get_io_context(struct cfq_data *cfqd, gfp_t gfp_mask) if (!ioc) return NULL; +retry: cic = cfq_cic_lookup(cfqd, ioc); if (cic) goto out; @@ -3215,7 +3217,12 @@ cfq_get_io_context(struct cfq_data *cfqd, gfp_t gfp_mask) if (cic == NULL) goto err; - if (cfq_cic_link(cfqd, ioc, cic, gfp_mask)) + ret = cfq_cic_link(cfqd, ioc, cic, gfp_mask); + if (ret == -EEXIST) { + /* someone has linked cic to ioc already */ + cfq_cic_free(cic); + goto retry; + } else if (ret) goto err_free; out: -- cgit v1.2.3 From dfaf3c036cd46a73f4ef3e4b75c1f647e503d4e1 Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Fri, 2 Dec 2011 14:47:03 +0100 Subject: loop: Fix discard_alignment default setting discard_alignment is not relevant to the loop driver since it is supposed to be set as a workaround for the old sector 63 alignments. So set it to zero rather than block size. Signed-off-by: Lukas Czerner Reported-by: Milan Broz Signed-off-by: Jens Axboe --- drivers/block/loop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 5579fda279b..1e888c9e85b 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -797,7 +797,7 @@ static void loop_config_discard(struct loop_device *lo) } q->limits.discard_granularity = inode->i_sb->s_blocksize; - q->limits.discard_alignment = inode->i_sb->s_blocksize; + q->limits.discard_alignment = 0; q->limits.max_discard_sectors = UINT_MAX >> 9; q->limits.discard_zeroes_data = 1; queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); -- cgit v1.2.3 From 629be5f275ddf0791614f8cbdafc11bde4247850 Mon Sep 17 00:00:00 2001 From: Tony Breeds Date: Tue, 22 Nov 2011 15:39:11 +1100 Subject: mtd: ndfc: fix typo in structure dereference In commit 9d7948c50055e74b693ce9e99a709b2e5bbc1942 (mtd: ndfc: use ofpart through generic parsing) we dereference a non pointer type causing the following compiler error: drivers/mtd/nand/ndfc.c: In function 'ndfc_chip_init': drivers/mtd/nand/ndfc.c:191: error: invalid type argument of '->' (have 'struct mtd_part_parser_data') Fix that. Signed-off-by: Tony Breeds Acked-by: Dmitry Eremin-Solenikov Signed-off-by: David Woodhouse --- drivers/mtd/nand/ndfc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index ee1713907b9..f8aacf48ecd 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -188,7 +188,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, if (!flash_np) return -ENODEV; - ppdata->of_node = flash_np; + ppdata.of_node = flash_np; ndfc->mtd.name = kasprintf(GFP_KERNEL, "%s.%s", dev_name(&ndfc->ofdev->dev), flash_np->name); if (!ndfc->mtd.name) { -- cgit v1.2.3 From 2151937d7ce491bfbe269a1ae742c6686904474c Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Thu, 1 Dec 2011 08:06:52 -0800 Subject: ceph: fix rasize reporting by ceph_show_options Fix typo. Reported-by: mowang da Signed-off-by: Sage Weil --- fs/ceph/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ceph/super.c b/fs/ceph/super.c index 8dc73a594a9..b48f15f101a 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -383,7 +383,7 @@ static int ceph_show_options(struct seq_file *m, struct vfsmount *mnt) if (fsopt->rsize != CEPH_RSIZE_DEFAULT) seq_printf(m, ",rsize=%d", fsopt->rsize); if (fsopt->rasize != CEPH_RASIZE_DEFAULT) - seq_printf(m, ",rasize=%d", fsopt->rsize); + seq_printf(m, ",rasize=%d", fsopt->rasize); if (fsopt->congestion_kb != default_congestion_kb()) seq_printf(m, ",write_congestion_kb=%d", fsopt->congestion_kb); if (fsopt->caps_wanted_delay_min != CEPH_CAPS_WANTED_DELAY_MIN_DEFAULT) -- cgit v1.2.3 From 54a8a79c55ce283c94ce4c67a98d28c21830405a Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Tue, 22 Nov 2011 09:32:57 +0800 Subject: btusb: fix a memory leak in btusb_send_frame() This patch fixes the following memory leak reported by kmemleak: unreferenced object 0xffff880060a53840 (size 192): comm "softirq", pid 0, jiffies 4320571771 (age 1406.569s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] create_object+0x187/0x28b [] kmemleak_alloc+0x73/0x98 [] __kmalloc+0xfc/0x123 [] usb_alloc_urb+0x1e/0x48 [] btusb_send_frame+0x86/0x385 [btusb] [] hci_send_frame+0xa0/0xa5 [bluetooth] [] hci_cmd_task+0xa0/0xfb [bluetooth] [] tasklet_action+0x8f/0xef [] __do_softirq+0xf4/0x1db [] run_ksoftirqd+0x84/0x129 [] kthread+0xa0/0xa8 [] kernel_thread_helper+0x4/0x10 [] 0xffffffffffffffff The problem is that when inc_tx() returns non-zero, we forgot to call usb_free_urb(). Cc: Marcel Holtmann Cc: "Gustavo F. Padovan" Signed-off-by: WANG Cong Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan --- drivers/bluetooth/btusb.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index fe4ebc375b3..eabc437ce50 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -777,9 +777,8 @@ skip_waking: usb_mark_last_busy(data->udev); } - usb_free_urb(urb); - done: + usb_free_urb(urb); return err; } -- cgit v1.2.3 From 33cb722c22f28964a501a56cc76397834c221c7a Mon Sep 17 00:00:00 2001 From: Andrei Emeltchenko Date: Wed, 23 Nov 2011 11:23:34 +0200 Subject: Bluetooth: Correct version check in hci_setup Check for hci_ver instead of lmp_ver Signed-off-by: Andrei Emeltchenko Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan --- net/bluetooth/hci_event.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index d7d96b6b1f0..643a41b76e2 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -545,7 +545,7 @@ static void hci_setup(struct hci_dev *hdev) { hci_setup_event_mask(hdev); - if (hdev->lmp_ver > 1) + if (hdev->hci_ver > 1) hci_send_cmd(hdev, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL); if (hdev->features[6] & LMP_SIMPLE_PAIR) { -- cgit v1.2.3 From f0a4cf31017ac8179a2fe295c1bd8e821d7674f4 Mon Sep 17 00:00:00 2001 From: Thomas Meyer Date: Thu, 17 Nov 2011 12:43:40 +0000 Subject: sparc: Use kmemdup rather than duplicating its implementation The semantic patch that makes this change is available in scripts/coccinelle/api/memdup.cocci. Signed-off-by: Thomas Meyer Signed-off-by: David S. Miller --- arch/sparc/kernel/ds.c | 6 ++---- arch/sparc/kernel/prom_common.c | 4 +--- 2 files changed, 3 insertions(+), 7 deletions(-) diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c index 7429b47c3ac..381edcd5bc2 100644 --- a/arch/sparc/kernel/ds.c +++ b/arch/sparc/kernel/ds.c @@ -1181,13 +1181,11 @@ static int __devinit ds_probe(struct vio_dev *vdev, dp->rcv_buf_len = 4096; - dp->ds_states = kzalloc(sizeof(ds_states_template), - GFP_KERNEL); + dp->ds_states = kmemdup(ds_states_template, + sizeof(ds_states_template), GFP_KERNEL); if (!dp->ds_states) goto out_free_rcv_buf; - memcpy(dp->ds_states, ds_states_template, - sizeof(ds_states_template)); dp->num_ds_states = ARRAY_SIZE(ds_states_template); for (i = 0; i < dp->num_ds_states; i++) diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c index 46614807a57..741df916c12 100644 --- a/arch/sparc/kernel/prom_common.c +++ b/arch/sparc/kernel/prom_common.c @@ -58,12 +58,10 @@ int of_set_property(struct device_node *dp, const char *name, void *val, int len void *new_val; int err; - new_val = kmalloc(len, GFP_KERNEL); + new_val = kmemdup(val, len, GFP_KERNEL); if (!new_val) return -ENOMEM; - memcpy(new_val, val, len); - err = -ENODEV; mutex_lock(&of_set_property_mutex); -- cgit v1.2.3 From e410471029ba99e85af5e2a1e7e747c7b4de2bc3 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 21 Nov 2011 21:42:20 +0000 Subject: bbc_i2c: Remove unneeded err variable Signed-off-by: Axel Lin Signed-off-by: David S. Miller --- drivers/sbus/char/bbc_i2c.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) diff --git a/drivers/sbus/char/bbc_i2c.c b/drivers/sbus/char/bbc_i2c.c index 5f94d22c491..a0d1399577c 100644 --- a/drivers/sbus/char/bbc_i2c.c +++ b/drivers/sbus/char/bbc_i2c.c @@ -233,13 +233,9 @@ int bbc_i2c_write_buf(struct bbc_i2c_client *client, int ret = 0; while (len > 0) { - int err = bbc_i2c_writeb(client, *buf, off); - - if (err < 0) { - ret = err; + ret = bbc_i2c_writeb(client, *buf, off); + if (ret < 0) break; - } - len--; buf++; off++; @@ -253,11 +249,9 @@ int bbc_i2c_read_buf(struct bbc_i2c_client *client, int ret = 0; while (len > 0) { - int err = bbc_i2c_readb(client, buf, off); - if (err < 0) { - ret = err; + ret = bbc_i2c_readb(client, buf, off); + if (ret < 0) break; - } len--; buf++; off++; -- cgit v1.2.3 From dbf2b92d54e73e4a2524b90d29bd498ecc4aa593 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 26 Nov 2011 19:04:25 +0000 Subject: sbus: convert drivers/sbus/char/* to use module_platform_driver() This patch converts the drivers in drivers/sbus/char/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin Signed-off-by: David S. Miller --- drivers/sbus/char/bbc_i2c.c | 13 +------------ drivers/sbus/char/display7seg.c | 13 +------------ drivers/sbus/char/envctrl.c | 12 +----------- drivers/sbus/char/flash.c | 12 +----------- drivers/sbus/char/uctrl.c | 12 +----------- 5 files changed, 5 insertions(+), 57 deletions(-) diff --git a/drivers/sbus/char/bbc_i2c.c b/drivers/sbus/char/bbc_i2c.c index a0d1399577c..54266829290 100644 --- a/drivers/sbus/char/bbc_i2c.c +++ b/drivers/sbus/char/bbc_i2c.c @@ -416,17 +416,6 @@ static struct platform_driver bbc_i2c_driver = { .remove = __devexit_p(bbc_i2c_remove), }; -static int __init bbc_i2c_init(void) -{ - return platform_driver_register(&bbc_i2c_driver); -} - -static void __exit bbc_i2c_exit(void) -{ - platform_driver_unregister(&bbc_i2c_driver); -} - -module_init(bbc_i2c_init); -module_exit(bbc_i2c_exit); +module_platform_driver(bbc_i2c_driver); MODULE_LICENSE("GPL"); diff --git a/drivers/sbus/char/display7seg.c b/drivers/sbus/char/display7seg.c index 965a1fccd66..4b9939726c3 100644 --- a/drivers/sbus/char/display7seg.c +++ b/drivers/sbus/char/display7seg.c @@ -275,15 +275,4 @@ static struct platform_driver d7s_driver = { .remove = __devexit_p(d7s_remove), }; -static int __init d7s_init(void) -{ - return platform_driver_register(&d7s_driver); -} - -static void __exit d7s_exit(void) -{ - platform_driver_unregister(&d7s_driver); -} - -module_init(d7s_init); -module_exit(d7s_exit); +module_platform_driver(d7s_driver); diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c index be7b4e56154..339fd6f65ed 100644 --- a/drivers/sbus/char/envctrl.c +++ b/drivers/sbus/char/envctrl.c @@ -1138,16 +1138,6 @@ static struct platform_driver envctrl_driver = { .remove = __devexit_p(envctrl_remove), }; -static int __init envctrl_init(void) -{ - return platform_driver_register(&envctrl_driver); -} - -static void __exit envctrl_exit(void) -{ - platform_driver_unregister(&envctrl_driver); -} +module_platform_driver(envctrl_driver); -module_init(envctrl_init); -module_exit(envctrl_exit); MODULE_LICENSE("GPL"); diff --git a/drivers/sbus/char/flash.c b/drivers/sbus/char/flash.c index 73dd4e7afaa..826157f3869 100644 --- a/drivers/sbus/char/flash.c +++ b/drivers/sbus/char/flash.c @@ -216,16 +216,6 @@ static struct platform_driver flash_driver = { .remove = __devexit_p(flash_remove), }; -static int __init flash_init(void) -{ - return platform_driver_register(&flash_driver); -} - -static void __exit flash_cleanup(void) -{ - platform_driver_unregister(&flash_driver); -} +module_platform_driver(flash_driver); -module_init(flash_init); -module_exit(flash_cleanup); MODULE_LICENSE("GPL"); diff --git a/drivers/sbus/char/uctrl.c b/drivers/sbus/char/uctrl.c index ebce9639a26..0b31658ccde 100644 --- a/drivers/sbus/char/uctrl.c +++ b/drivers/sbus/char/uctrl.c @@ -435,16 +435,6 @@ static struct platform_driver uctrl_driver = { }; -static int __init uctrl_init(void) -{ - return platform_driver_register(&uctrl_driver); -} - -static void __exit uctrl_exit(void) -{ - platform_driver_unregister(&uctrl_driver); -} +module_platform_driver(uctrl_driver); -module_init(uctrl_init); -module_exit(uctrl_exit); MODULE_LICENSE("GPL"); -- cgit v1.2.3 From df16c86a56595d1c28e58532ec25dd612c39c6c7 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Wed, 23 Nov 2011 15:57:06 +0100 Subject: mtd: gpmi: add missing include 'module.h' Fixes: drivers/mtd/nand/gpmi-nand/gpmi-nand.c: In function 'gpmi_nfc_init': drivers/mtd/nand/gpmi-nand/gpmi-nand.c:1475:16: error: 'THIS_MODULE' undeclared (first use in this function) drivers/mtd/nand/gpmi-nand/gpmi-nand.c:1475:16: note: each undeclared identifier is reported only once for each function it appears in drivers/mtd/nand/gpmi-nand/gpmi-nand.c: At top level: drivers/mtd/nand/gpmi-nand/gpmi-nand.c:1617:15: error: expected declaration specifiers or '...' before string constant drivers/mtd/nand/gpmi-nand/gpmi-nand.c:1617:1: warning: data definition has no type or storage class drivers/mtd/nand/gpmi-nand/gpmi-nand.c:1617:1: warning: type defaults to 'int' in declaration of 'MODULE_AUTHOR' and some more... Signed-off-by: Wolfram Sang Acked-by: Huang Shijie Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 071b63420f0..493ec2fcf97 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -21,9 +21,9 @@ #include #include #include +#include #include #include - #include "gpmi-nand.h" /* add our owner bbt descriptor */ -- cgit v1.2.3 From bbef98ab0f019f1b0c25c1acdf1683c68933d41b Mon Sep 17 00:00:00 2001 From: Ram Pai Date: Sun, 6 Nov 2011 10:33:10 +0800 Subject: PCI: defer enablement of SRIOV BARS All the PCI BARs of a device are enabled when the device is enabled using pci_enable_device(). This unnecessarily enables SRIOV BARs of the device. On some platforms, which do not support SRIOV as yet, the pci_enable_device() fails to enable the device if its SRIOV BARs are not allocated resources correctly. The following patch fixes the above problem. The SRIOV BARs are now enabled when IOV capability of the device is enabled in sriov_enable(). NOTE: Note, there is subtle change in the pci_enable_device() API. Any driver that depends on SRIOV BARS to be enabled in pci_enable_device() can fail. The patch has been touch tested on power and x86 platform. Tested-by: Michael Wang Signed-off-by: Ram Pai Signed-off-by: Jesse Barnes --- drivers/pci/iov.c | 7 +++++++ drivers/pci/pci.c | 2 +- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index b82c155d7b3..1969a3ee305 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -283,6 +283,7 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) struct resource *res; struct pci_dev *pdev; struct pci_sriov *iov = dev->sriov; + int bars = 0; if (!nr_virtfn) return 0; @@ -307,6 +308,7 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) nres = 0; for (i = 0; i < PCI_SRIOV_NUM_BARS; i++) { + bars |= (1 << (i + PCI_IOV_RESOURCES)); res = dev->resource + PCI_IOV_RESOURCES + i; if (res->parent) nres++; @@ -324,6 +326,11 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) return -ENOMEM; } + if (pci_enable_resources(dev, bars)) { + dev_err(&dev->dev, "SR-IOV: IOV BARS not allocated\n"); + return -ENOMEM; + } + if (iov->link != dev->devfn) { pdev = pci_get_slot(dev->bus, iov->link); if (!pdev) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 6f45a73c6e9..4788413f43d 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1126,7 +1126,7 @@ static int __pci_enable_device_flags(struct pci_dev *dev, if (atomic_add_return(1, &dev->enable_cnt) > 1) return 0; /* already enabled */ - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) + for (i = 0; i < PCI_ROM_RESOURCE; i++) if (dev->resource[i].flags & flags) bars |= (1 << i); -- cgit v1.2.3 From 8c4519456713628cbb457c77bf06684aace67f69 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Tue, 29 Nov 2011 19:20:23 +0000 Subject: PCI: fix ats compile failure I get this compile failure on parisc: drivers/pci/ats.c: In function 'ats_alloc_one': drivers/pci/ats.c:29: error: implicit declaration of function 'kzalloc' drivers/pci/ats.c:29: warning: assignment makes pointer from integer without a cast drivers/pci/ats.c: In function 'ats_free_one': drivers/pci/ats.c:45: error: implicit declaration of function 'kfree' Because ats.c is missing linux/slab.h as an include. This patch fixes it Signed-off-by: James Bottomley Signed-off-by: Jesse Barnes --- drivers/pci/ats.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/ats.c b/drivers/pci/ats.c index 7ec56fb0bd7..b0dd08e6a9d 100644 --- a/drivers/pci/ats.c +++ b/drivers/pci/ats.c @@ -13,6 +13,7 @@ #include #include #include +#include #include "pci.h" -- cgit v1.2.3 From 75fc2d3797c47f5f70ca71c41c342c352845cd06 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 5 Dec 2011 17:27:08 +0100 Subject: MAINTAINERS: Update tip.git related git trees Update the six major subsystem trees hosted in the tip tree to the new location (or add the location if it was missing). Acked-by: Thomas Gleixner Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/n/tip-w0z98as3kwy9bo1o3k2mmuvi@git.kernel.org Signed-off-by: Ingo Molnar --- MAINTAINERS | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 44756028499..9706a21edcb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3118,6 +3118,7 @@ F: include/linux/hid* HIGH-RESOLUTION TIMERS, CLOCKEVENTS, DYNTICKS M: Thomas Gleixner +T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core S: Maintained F: Documentation/timers/ F: kernel/hrtimer.c @@ -3627,7 +3628,7 @@ F: net/irda/ IRQ SUBSYSTEM M: Thomas Gleixner S: Maintained -T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git irq/core +T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core F: kernel/irq/ ISAPNP @@ -4115,7 +4116,7 @@ F: drivers/hwmon/lm90.c LOCKDEP AND LOCKSTAT M: Peter Zijlstra M: Ingo Molnar -T: git git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core/locking S: Maintained F: Documentation/lockdep*.txt F: Documentation/lockstat.txt @@ -5102,6 +5103,7 @@ M: Peter Zijlstra M: Paul Mackerras M: Ingo Molnar M: Arnaldo Carvalho de Melo +T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core S: Supported F: kernel/events/* F: include/linux/perf_event.h @@ -5181,6 +5183,7 @@ F: drivers/scsi/pm8001/ POSIX CLOCKS and TIMERS M: Thomas Gleixner +T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core S: Supported F: fs/timerfd.c F: include/linux/timer* @@ -5696,6 +5699,7 @@ F: drivers/dma/dw_dmac.c TIMEKEEPING, NTP M: John Stultz M: Thomas Gleixner +T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core S: Supported F: include/linux/clocksource.h F: include/linux/time.h @@ -5720,6 +5724,7 @@ F: drivers/watchdog/sc1200wdt.c SCHEDULER M: Ingo Molnar M: Peter Zijlstra +T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core S: Maintained F: kernel/sched* F: include/linux/sched.h @@ -6647,7 +6652,7 @@ TRACING M: Steven Rostedt M: Frederic Weisbecker M: Ingo Molnar -T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git perf/core +T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core S: Maintained F: Documentation/trace/ftrace.txt F: arch/*/*/*/ftrace.h @@ -7397,7 +7402,7 @@ M: Thomas Gleixner M: Ingo Molnar M: "H. Peter Anvin" M: x86@kernel.org -T: git git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/core S: Maintained F: Documentation/x86/ F: arch/x86/ -- cgit v1.2.3 From 68bfcafaaeebdf23fba0edb4e0964bef7d08f92a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 6 Dec 2011 15:19:00 +0800 Subject: ASoC: Include linux/io.h for jz4740 codec Include linux/io.h to fix below build errors: CC sound/soc/codecs/jz4740.o sound/soc/codecs/jz4740.c: In function 'jz4740_codec_read': sound/soc/codecs/jz4740.c:82: error: implicit declaration of function 'readl' sound/soc/codecs/jz4740.c: In function 'jz4740_codec_write': sound/soc/codecs/jz4740.c:92: error: implicit declaration of function 'writel' sound/soc/codecs/jz4740.c: In function 'jz4740_codec_probe': sound/soc/codecs/jz4740.c:373: error: implicit declaration of function 'ioremap' sound/soc/codecs/jz4740.c:373: warning: assignment makes pointer from integer without a cast sound/soc/codecs/jz4740.c:393: error: implicit declaration of function 'iounmap' make[3]: *** [sound/soc/codecs/jz4740.o] Error 1 make[2]: *** [sound/soc/codecs] Error 2 make[1]: *** [sound/soc] Error 2 make: *** [sound] Error 2 Signed-off-by: Axel Lin Acked-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- sound/soc/codecs/jz4740.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/codecs/jz4740.c b/sound/soc/codecs/jz4740.c index e373f8f0690..3e1f4e172bf 100644 --- a/sound/soc/codecs/jz4740.c +++ b/sound/soc/codecs/jz4740.c @@ -15,6 +15,7 @@ #include #include #include +#include #include -- cgit v1.2.3 From f8f626f537aee0da878d287e0d7694b7b76d599a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 6 Dec 2011 15:38:51 +0800 Subject: ASoC: Fix build dependency for SND_SOC_JZ4740_CODEC Currently SND_SOC_JZ4740_CODEC depends on SOC_JZ4740 but SOC_JZ4740 is not defined in any Kconfig. Thus the codec driver will not be built when select "Build all ASoC CODEC drivers". (Unless it is selected by SND_JZ4740_SOC_QI_LB60). Remove the dependency with SOC_JZ4740, then this code driver can be built when select "Build all ASoC CODEC drivers". Signed-off-by: Axel Lin Acked-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- sound/soc/codecs/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 4584514d93d..fa787d45d74 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -33,7 +33,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_CX20442 select SND_SOC_DA7210 if I2C select SND_SOC_DFBMCS320 - select SND_SOC_JZ4740_CODEC if SOC_JZ4740 + select SND_SOC_JZ4740_CODEC select SND_SOC_LM4857 if I2C select SND_SOC_MAX98088 if I2C select SND_SOC_MAX98095 if I2C -- cgit v1.2.3 From 974c07249b06d948154be3275bf4f6e55b585300 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Fri, 2 Dec 2011 23:09:42 +0100 Subject: ARM: 7186/1: fix Kconfig issue with PHYS_OFFSET and !MMU MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 1b9f95f8ade9 (ARM: prepare for removal of a bunch of files) introduced CONFIG_PHYS_OFFSET but the Kconfig hex prompt did not provide a default value. This has the undesired side effect of breaking a reportedly used trick for updating defconfigs on the fly for routine buildtesting across all arch and all platforms, i.e. cp /path/to/somedefconfig .config ; yes "" | make oldconfig because the config system will endlessly loop until a valid address is provided. However we can't just pick a random default value since it is likely to be wrong for the majority of the boards as the right answer for this option is quite varied. So the fact that the config system insists on having a proper value be entered is actually a good thing. It turns out that only at91x40_defconfig has this problem because it has CONFIG_MMU=n. However, in the !MMU case, there is already a CONFIG_DRAM_BASE value that can be used here. So let's use that as a default in that case and suppress the redundant CONFIG_PHYS_OFFSET prompt. Eventually the DRAM_BASE config option could simply be replaced by PHYS_OFFSET directly, but that's a larger change better suited for later. Reported-by: Paul Gortmaker Signed-off-by: Nicolas Pitre Acked-by: Uwe Kleine-König Signed-off-by: Russell King --- arch/arm/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index e084b7e981e..776d76b8cb6 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -220,8 +220,9 @@ config NEED_MACH_MEMORY_H be avoided when possible. config PHYS_OFFSET - hex "Physical address of main memory" + hex "Physical address of main memory" if MMU depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H + default DRAM_BASE if !MMU help Please provide the physical address corresponding to the location of main memory in your system. -- cgit v1.2.3 From de66a979012dbc66b1ec0125795a3f79ee667b8a Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Mon, 5 Dec 2011 09:39:59 +0100 Subject: ARM: 7187/1: fix unwinding for XIP kernels MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The linker places the unwind tables in readonly sections. So when using an XIP kernel these are located in ROM and cannot be modified. For that reason the current approach to convert the relative offsets in the unwind index to absolute addresses early in the boot process doesn't work with XIP. The offsets in the unwind index section are signed 31 bit numbers and the structs are sorted by this offset. So it first has offsets between 0x40000000 and 0x7fffffff (i.e. the negative offsets) and then offsets between 0x00000000 and 0x3fffffff. When seperating these two blocks the numbers are sorted even when interpreting the offsets as unsigned longs. So determine the first non-negative entry once and track that using the new origin pointer. The actual bisection can then use a plain unsigned long comparison. The only thing that makes the new bisection more complicated is that the offsets are relative to their position in the index section, so the key to search needs to be adapted accordingly in each step. Moreover several consts are added to catch future writes and rename the member "addr" of struct unwind_idx to "addr_offset" to better match the new semantic. (This has the additional benefit of breaking eventual users at compile time to make them aware of the change.) In my tests the new algorithm was a tad faster than the original and has the additional upside of not needing the initial conversion and so saves some boot time and it's possible to unwind even earlier. Acked-by: Catalin Marinas Acked-by: Nicolas Pitre Signed-off-by: Uwe Kleine-König Signed-off-by: Russell King --- arch/arm/include/asm/unwind.h | 16 ++---- arch/arm/kernel/setup.c | 2 - arch/arm/kernel/unwind.c | 129 +++++++++++++++++++++++++++--------------- 3 files changed, 88 insertions(+), 59 deletions(-) diff --git a/arch/arm/include/asm/unwind.h b/arch/arm/include/asm/unwind.h index a5edf421005..d1c3f3a71c9 100644 --- a/arch/arm/include/asm/unwind.h +++ b/arch/arm/include/asm/unwind.h @@ -30,14 +30,15 @@ enum unwind_reason_code { }; struct unwind_idx { - unsigned long addr; + unsigned long addr_offset; unsigned long insn; }; struct unwind_table { struct list_head list; - struct unwind_idx *start; - struct unwind_idx *stop; + const struct unwind_idx *start; + const struct unwind_idx *origin; + const struct unwind_idx *stop; unsigned long begin_addr; unsigned long end_addr; }; @@ -49,15 +50,6 @@ extern struct unwind_table *unwind_table_add(unsigned long start, extern void unwind_table_del(struct unwind_table *tab); extern void unwind_backtrace(struct pt_regs *regs, struct task_struct *tsk); -#ifdef CONFIG_ARM_UNWIND -extern int __init unwind_init(void); -#else -static inline int __init unwind_init(void) -{ - return 0; -} -#endif - #endif /* !__ASSEMBLY__ */ #ifdef CONFIG_ARM_UNWIND diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 3448a3f9cc8..1bdd0adbb7d 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -895,8 +895,6 @@ void __init setup_arch(char **cmdline_p) { struct machine_desc *mdesc; - unwind_init(); - setup_processor(); mdesc = setup_machine_fdt(__atags_pointer); if (!mdesc) diff --git a/arch/arm/kernel/unwind.c b/arch/arm/kernel/unwind.c index e7e8365795c..3f03fe0c326 100644 --- a/arch/arm/kernel/unwind.c +++ b/arch/arm/kernel/unwind.c @@ -67,7 +67,7 @@ EXPORT_SYMBOL(__aeabi_unwind_cpp_pr2); struct unwind_ctrl_block { unsigned long vrs[16]; /* virtual register set */ - unsigned long *insn; /* pointer to the current instructions word */ + const unsigned long *insn; /* pointer to the current instructions word */ int entries; /* number of entries left to interpret */ int byte; /* current byte number in the instructions word */ }; @@ -83,8 +83,9 @@ enum regs { PC = 15 }; -extern struct unwind_idx __start_unwind_idx[]; -extern struct unwind_idx __stop_unwind_idx[]; +extern const struct unwind_idx __start_unwind_idx[]; +static const struct unwind_idx *__origin_unwind_idx; +extern const struct unwind_idx __stop_unwind_idx[]; static DEFINE_SPINLOCK(unwind_lock); static LIST_HEAD(unwind_tables); @@ -98,45 +99,99 @@ static LIST_HEAD(unwind_tables); }) /* - * Binary search in the unwind index. The entries entries are + * Binary search in the unwind index. The entries are * guaranteed to be sorted in ascending order by the linker. + * + * start = first entry + * origin = first entry with positive offset (or stop if there is no such entry) + * stop - 1 = last entry */ -static struct unwind_idx *search_index(unsigned long addr, - struct unwind_idx *first, - struct unwind_idx *last) +static const struct unwind_idx *search_index(unsigned long addr, + const struct unwind_idx *start, + const struct unwind_idx *origin, + const struct unwind_idx *stop) { - pr_debug("%s(%08lx, %p, %p)\n", __func__, addr, first, last); + unsigned long addr_prel31; + + pr_debug("%s(%08lx, %p, %p, %p)\n", + __func__, addr, start, origin, stop); + + /* + * only search in the section with the matching sign. This way the + * prel31 numbers can be compared as unsigned longs. + */ + if (addr < (unsigned long)start) + /* negative offsets: [start; origin) */ + stop = origin; + else + /* positive offsets: [origin; stop) */ + start = origin; + + /* prel31 for address relavive to start */ + addr_prel31 = (addr - (unsigned long)start) & 0x7fffffff; - if (addr < first->addr) { + while (start < stop - 1) { + const struct unwind_idx *mid = start + ((stop - start) >> 1); + + /* + * As addr_prel31 is relative to start an offset is needed to + * make it relative to mid. + */ + if (addr_prel31 - ((unsigned long)mid - (unsigned long)start) < + mid->addr_offset) + stop = mid; + else { + /* keep addr_prel31 relative to start */ + addr_prel31 -= ((unsigned long)mid - + (unsigned long)start); + start = mid; + } + } + + if (likely(start->addr_offset <= addr_prel31)) + return start; + else { pr_warning("unwind: Unknown symbol address %08lx\n", addr); return NULL; - } else if (addr >= last->addr) - return last; + } +} - while (first < last - 1) { - struct unwind_idx *mid = first + ((last - first + 1) >> 1); +static const struct unwind_idx *unwind_find_origin( + const struct unwind_idx *start, const struct unwind_idx *stop) +{ + pr_debug("%s(%p, %p)\n", __func__, start, stop); + while (start < stop - 1) { + const struct unwind_idx *mid = start + ((stop - start) >> 1); - if (addr < mid->addr) - last = mid; + if (mid->addr_offset >= 0x40000000) + /* negative offset */ + start = mid; else - first = mid; + /* positive offset */ + stop = mid; } - - return first; + pr_debug("%s -> %p\n", __func__, stop); + return stop; } -static struct unwind_idx *unwind_find_idx(unsigned long addr) +static const struct unwind_idx *unwind_find_idx(unsigned long addr) { - struct unwind_idx *idx = NULL; + const struct unwind_idx *idx = NULL; unsigned long flags; pr_debug("%s(%08lx)\n", __func__, addr); - if (core_kernel_text(addr)) + if (core_kernel_text(addr)) { + if (unlikely(!__origin_unwind_idx)) + __origin_unwind_idx = + unwind_find_origin(__start_unwind_idx, + __stop_unwind_idx); + /* main unwind table */ idx = search_index(addr, __start_unwind_idx, - __stop_unwind_idx - 1); - else { + __origin_unwind_idx, + __stop_unwind_idx); + } else { /* module unwind tables */ struct unwind_table *table; @@ -145,7 +200,8 @@ static struct unwind_idx *unwind_find_idx(unsigned long addr) if (addr >= table->begin_addr && addr < table->end_addr) { idx = search_index(addr, table->start, - table->stop - 1); + table->origin, + table->stop); /* Move-to-front to exploit common traces */ list_move(&table->list, &unwind_tables); break; @@ -274,7 +330,7 @@ static int unwind_exec_insn(struct unwind_ctrl_block *ctrl) int unwind_frame(struct stackframe *frame) { unsigned long high, low; - struct unwind_idx *idx; + const struct unwind_idx *idx; struct unwind_ctrl_block ctrl; /* only go to a higher address on the stack */ @@ -399,7 +455,6 @@ struct unwind_table *unwind_table_add(unsigned long start, unsigned long size, unsigned long text_size) { unsigned long flags; - struct unwind_idx *idx; struct unwind_table *tab = kmalloc(sizeof(*tab), GFP_KERNEL); pr_debug("%s(%08lx, %08lx, %08lx, %08lx)\n", __func__, start, size, @@ -408,15 +463,12 @@ struct unwind_table *unwind_table_add(unsigned long start, unsigned long size, if (!tab) return tab; - tab->start = (struct unwind_idx *)start; - tab->stop = (struct unwind_idx *)(start + size); + tab->start = (const struct unwind_idx *)start; + tab->stop = (const struct unwind_idx *)(start + size); + tab->origin = unwind_find_origin(tab->start, tab->stop); tab->begin_addr = text_addr; tab->end_addr = text_addr + text_size; - /* Convert the symbol addresses to absolute values */ - for (idx = tab->start; idx < tab->stop; idx++) - idx->addr = prel31_to_addr(&idx->addr); - spin_lock_irqsave(&unwind_lock, flags); list_add_tail(&tab->list, &unwind_tables); spin_unlock_irqrestore(&unwind_lock, flags); @@ -437,16 +489,3 @@ void unwind_table_del(struct unwind_table *tab) kfree(tab); } - -int __init unwind_init(void) -{ - struct unwind_idx *idx; - - /* Convert the symbol addresses to absolute values */ - for (idx = __start_unwind_idx; idx < __stop_unwind_idx; idx++) - idx->addr = prel31_to_addr(&idx->addr); - - pr_debug("unwind: ARM stack unwinding initialised\n"); - - return 0; -} -- cgit v1.2.3 From 6bd054096dce061560cee0e016e292e588dc438f Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 2 Dec 2011 18:16:01 +0100 Subject: ARM: 7185/1: perf: don't assign platform_device on unsupported CPUs In the unlikely case that a platform registers a PMU platform_device when running on a CPU that is unsupported by perf, we will encounter a NULL dereference when trying to assign the platform_device to the cpu_pmu structure. This patch checks that the CPU is supported by perf before assigning the platform_device. Reported-by: Pawel Moll Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/kernel/perf_event.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index 8e9c98edc06..88b0941ce51 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -640,6 +640,9 @@ static struct platform_device_id armpmu_plat_device_ids[] = { static int __devinit armpmu_device_probe(struct platform_device *pdev) { + if (!cpu_pmu) + return -ENODEV; + cpu_pmu->plat_device = pdev; return 0; } -- cgit v1.2.3 From 4af3ce0de0c12e5c17811eaefad36ab8e146c0fd Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Tue, 6 Dec 2011 10:47:37 -0800 Subject: IB/mlx4: Fix shutdown crash accessing a non-existent bitmap Commit cfcde11c3d7a ("IB/mlx4: Use flow counters on IBoE ports") added code that sets elements of counters[] to -1 if no counter is allocated, but then goes ahead and passes every entry to mlx4_counter_free() on shutdown. This is a bad idea, especially if MLX4_DEV_CAP_FLAG_COUNTERS isn't set so there isn't even an underlying bitmap to free from. Tested-by: Sean Hefty Cc: Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 77f3dbc0aaa..18836cdf1e1 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1244,7 +1244,8 @@ err_reg: err_counter: for (; i; --i) - mlx4_counter_free(ibdev->dev, ibdev->counters[i - 1]); + if (ibdev->counters[i - 1] != -1) + mlx4_counter_free(ibdev->dev, ibdev->counters[i - 1]); err_map: iounmap(ibdev->uar_map); @@ -1275,7 +1276,8 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) } iounmap(ibdev->uar_map); for (p = 0; p < ibdev->num_ports; ++p) - mlx4_counter_free(ibdev->dev, ibdev->counters[p]); + if (ibdev->counters[p] != -1) + mlx4_counter_free(ibdev->dev, ibdev->counters[p]); mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB) mlx4_CLOSE_PORT(dev, p); -- cgit v1.2.3 From 03fc3070457dc0e6a717a2e732af93ef1cb2ae51 Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Sun, 4 Dec 2011 12:26:50 +0100 Subject: batman-adv: in case of roaming mark the client with TT_CLIENT_ROAM In case of a client roaming from node A to node B, the latter have to mark the corresponding global entry with TT_CLIENT_ROAM (instead of TT_CLIENT_PENDING). Marking a global entry with TT_CLIENT_PENDING will end up in keeping such entry forever (because this flag is only meant to be used with local entries and it is never checked on global ones). In the worst case (all the clients roaming to the same node A) the local and the global table will contain exactly the same clients. Batman-adv will continue to work, but the memory usage is duplicated. Signed-off-by: Antonio Quartulli --- net/batman-adv/translation-table.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index c7aafc7c5ed..c46b1407c88 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -245,9 +245,11 @@ void tt_local_add(struct net_device *soft_iface, const uint8_t *addr, if (tt_global_entry) { /* This node is probably going to update its tt table */ tt_global_entry->orig_node->tt_poss_change = true; - /* The global entry has to be marked as PENDING and has to be + /* The global entry has to be marked as ROAMING and has to be * kept for consistency purpose */ - tt_global_entry->flags |= TT_CLIENT_PENDING; + tt_global_entry->flags |= TT_CLIENT_ROAM; + tt_global_entry->roam_at = jiffies; + send_roam_adv(bat_priv, tt_global_entry->addr, tt_global_entry->orig_node); } -- cgit v1.2.3 From 797399b415b78dacdbcaffdb89e46e369ec88b98 Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Sun, 4 Dec 2011 22:38:27 +0100 Subject: batman-adv: delete global entry in case of roaming When receiving a DEL change for a client due to a roaming event (change is marked with TT_CLIENT_ROAM), each node has to check if the client roamed to itself or somewhere else. In the latter case the global entry is kept to avoid having no route at all otherwise we can safely delete the global entry Signed-off-by: Antonio Quartulli --- net/batman-adv/translation-table.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index c46b1407c88..5f09a578d49 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -696,6 +696,7 @@ void tt_global_del(struct bat_priv *bat_priv, const char *message, bool roaming) { struct tt_global_entry *tt_global_entry = NULL; + struct tt_local_entry *tt_local_entry = NULL; tt_global_entry = tt_global_hash_find(bat_priv, addr); if (!tt_global_entry) @@ -703,15 +704,29 @@ void tt_global_del(struct bat_priv *bat_priv, if (tt_global_entry->orig_node == orig_node) { if (roaming) { - tt_global_entry->flags |= TT_CLIENT_ROAM; - tt_global_entry->roam_at = jiffies; - goto out; + /* if we are deleting a global entry due to a roam + * event, there are two possibilities: + * 1) the client roamed from node A to node B => we mark + * it with TT_CLIENT_ROAM, we start a timer and we + * wait for node B to claim it. In case of timeout + * the entry is purged. + * 2) the client roamed to us => we can directly delete + * the global entry, since it is useless now. */ + tt_local_entry = tt_local_hash_find(bat_priv, + tt_global_entry->addr); + if (!tt_local_entry) { + tt_global_entry->flags |= TT_CLIENT_ROAM; + tt_global_entry->roam_at = jiffies; + goto out; + } } _tt_global_del(bat_priv, tt_global_entry, message); } out: if (tt_global_entry) tt_global_entry_free_ref(tt_global_entry); + if (tt_local_entry) + tt_local_entry_free_ref(tt_local_entry); } void tt_global_del_orig(struct bat_priv *bat_priv, -- cgit v1.2.3 From 162d12de656bc76786ba5fad6dac7bd238de9657 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 4 Dec 2011 08:38:54 +0100 Subject: ath9k: fix check for antenna diversity support fixes a regression on single-stream chips introduced in commit 43c3528430bd29f5e52438cad7cf7c0c62bf4583 "ath9k: implement .get_antenna and .set_antenna" Signed-off-by: Felix Fietkau Reported-by: Marek Lindner Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 93fbe6f4089..d2348a5a780 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -286,7 +286,7 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start) ath_start_ani(common); } - if (ath9k_hw_ops(ah)->antdiv_comb_conf_get && sc->ant_rx != 3) { + if ((ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) && sc->ant_rx != 3) { struct ath_hw_antcomb_conf div_ant_conf; u8 lna_conf; -- cgit v1.2.3 From 7148b7999277e2794cec90d8cb47d2a238e0bd0d Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Fri, 11 Nov 2011 17:06:20 +0000 Subject: mtd: pxa2xx-flash.c: It used to fall back to provided table. Make this work again. Signed-off-by: Jonathan Cameron Acked-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/maps/pxa2xx-flash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c index 411a17df9fc..2a25b6789af 100644 --- a/drivers/mtd/maps/pxa2xx-flash.c +++ b/drivers/mtd/maps/pxa2xx-flash.c @@ -98,7 +98,7 @@ static int __devinit pxa2xx_flash_probe(struct platform_device *pdev) } info->mtd->owner = THIS_MODULE; - mtd_device_parse_register(info->mtd, probes, 0, NULL, 0); + mtd_device_parse_register(info->mtd, probes, 0, flash->parts, flash->nr_parts); platform_set_drvdata(pdev, info); return 0; -- cgit v1.2.3 From 71c7a97289571ef5246b7f20d60b44961144c82f Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Mon, 14 Nov 2011 04:28:59 -0300 Subject: [media] omap_vout: fix crash if no driver for a display omap_vout crashes on start if a corresponding driver is not loaded for a display device. This patch changes omap_vout init sequence to skip devices without a driver. Signed-off-by: Tomi Valkeinen Acked-by: Vaibhav Hiremath Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/omap/omap_vout.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c index 9c5c19f142d..2d2a136e465 100644 --- a/drivers/media/video/omap/omap_vout.c +++ b/drivers/media/video/omap/omap_vout.c @@ -2169,6 +2169,14 @@ static int __init omap_vout_probe(struct platform_device *pdev) vid_dev->num_displays = 0; for_each_dss_dev(dssdev) { omap_dss_get_device(dssdev); + + if (!dssdev->driver) { + dev_warn(&pdev->dev, "no driver for display: %s\n", + dssdev->name); + omap_dss_put_device(dssdev); + continue; + } + vid_dev->displays[vid_dev->num_displays++] = dssdev; } -- cgit v1.2.3 From 68264d2a081f4032804adedb9ed9a680f7dade7e Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 7 Dec 2011 17:44:47 +0800 Subject: ASoC: Fix a typo in jive_wm8750 Fix a typo in jive_wm8750 that introduces below build error. Also removes an unused err variable. CC sound/soc/samsung/jive_wm8750.o sound/soc/samsung/jive_wm8750.c: In function 'jive_wm8750_init': sound/soc/samsung/jive_wm8750.c:104: warning: unused variable 'err' sound/soc/samsung/jive_wm8750.c: At top level: sound/soc/samsung/jive_wm8750.c:134: error: unknown field 'dapm_widgtets' specified in initializer sound/soc/samsung/jive_wm8750.c:134: warning: initialization from incompatible pointer type make[3]: *** [sound/soc/samsung/jive_wm8750.o] Error 1 make[2]: *** [sound/soc/samsung] Error 2 make[1]: *** [sound/soc] Error 2 make: *** [sound] Error 2 Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- sound/soc/samsung/jive_wm8750.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/sound/soc/samsung/jive_wm8750.c b/sound/soc/samsung/jive_wm8750.c index 1826acf20f7..8e523fd9189 100644 --- a/sound/soc/samsung/jive_wm8750.c +++ b/sound/soc/samsung/jive_wm8750.c @@ -101,7 +101,6 @@ static int jive_wm8750_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; struct snd_soc_dapm_context *dapm = &codec->dapm; - int err; /* These endpoints are not being used. */ snd_soc_dapm_nc_pin(dapm, "LINPUT2"); @@ -131,7 +130,7 @@ static struct snd_soc_card snd_soc_machine_jive = { .dai_link = &jive_dai, .num_links = 1, - .dapm_widgtets = wm8750_dapm_widgets, + .dapm_widgets = wm8750_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets), .dapm_routes = audio_map, .num_dapm_routes = ARRAY_SIZE(audio_map), -- cgit v1.2.3 From 974edd30beafdb136cdfc6839a143e23c826dc89 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 7 Dec 2011 17:52:19 +0800 Subject: ASoC: Include linux/module.h for smdk2443_wm9710 Include linux/module.h to fix below build error: CC sound/soc/samsung/smdk2443_wm9710.o sound/soc/samsung/smdk2443_wm9710.c:64: error: expected declaration specifiers or '...' before string constant sound/soc/samsung/smdk2443_wm9710.c:64: warning: data definition has no type or storage class sound/soc/samsung/smdk2443_wm9710.c:64: warning: type defaults to 'int' in declaration of 'MODULE_AUTHOR' sound/soc/samsung/smdk2443_wm9710.c:64: warning: function declaration isn't a prototype sound/soc/samsung/smdk2443_wm9710.c:65: error: expected declaration specifiers or '...' before string constant sound/soc/samsung/smdk2443_wm9710.c:65: warning: data definition has no type or storage class sound/soc/samsung/smdk2443_wm9710.c:65: warning: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION' sound/soc/samsung/smdk2443_wm9710.c:65: warning: function declaration isn't a prototype sound/soc/samsung/smdk2443_wm9710.c:66: error: expected declaration specifiers or '...' before string constant sound/soc/samsung/smdk2443_wm9710.c:66: warning: data definition has no type or storage class sound/soc/samsung/smdk2443_wm9710.c:66: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE' sound/soc/samsung/smdk2443_wm9710.c:66: warning: function declaration isn't a prototype make[3]: *** [sound/soc/samsung/smdk2443_wm9710.o] Error 1 make[2]: *** [sound/soc/samsung] Error 2 make[1]: *** [sound/soc] Error 2 make: *** [sound] Error 2 Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- sound/soc/samsung/smdk2443_wm9710.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/samsung/smdk2443_wm9710.c b/sound/soc/samsung/smdk2443_wm9710.c index 3a0dbfc793f..8bd1dc5706b 100644 --- a/sound/soc/samsung/smdk2443_wm9710.c +++ b/sound/soc/samsung/smdk2443_wm9710.c @@ -12,6 +12,7 @@ * */ +#include #include static struct snd_soc_card smdk2443; -- cgit v1.2.3 From 43af940c54d712ab5e6d6798a82498b25c2af299 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Mon, 5 Dec 2011 05:01:15 +0000 Subject: net/fec: fix the use of pdev->id The pdev->id is used in several places for different purpose. All these uses assume it's always the id of fec device which is >= 0. However this is only true for non-DT case. When DT plays, pdev->id is always -1, which will break these pdev->id users. Instead of fixing all these users one by one, this patch introduces a new member 'dev_id' to 'struct fec_enet_private' for holding the correct fec device id, and replaces all the existing uses of pdev->id with this dev_id. Signed-off-by: Shawn Guo Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/fec.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c index 1124ce0a159..c136230d50b 100644 --- a/drivers/net/ethernet/freescale/fec.c +++ b/drivers/net/ethernet/freescale/fec.c @@ -232,6 +232,7 @@ struct fec_enet_private { struct platform_device *pdev; int opened; + int dev_id; /* Phylib and MDIO interface */ struct mii_bus *mii_bus; @@ -837,7 +838,7 @@ static void __inline__ fec_get_mac(struct net_device *ndev) /* Adjust MAC if using macaddr */ if (iap == macaddr) - ndev->dev_addr[ETH_ALEN-1] = macaddr[ETH_ALEN-1] + fep->pdev->id; + ndev->dev_addr[ETH_ALEN-1] = macaddr[ETH_ALEN-1] + fep->dev_id; } /* ------------------------------------------------------------------------- */ @@ -953,7 +954,7 @@ static int fec_enet_mii_probe(struct net_device *ndev) char mdio_bus_id[MII_BUS_ID_SIZE]; char phy_name[MII_BUS_ID_SIZE + 3]; int phy_id; - int dev_id = fep->pdev->id; + int dev_id = fep->dev_id; fep->phy_dev = NULL; @@ -1031,7 +1032,7 @@ static int fec_enet_mii_init(struct platform_device *pdev) * mdio interface in board design, and need to be configured by * fec0 mii_bus. */ - if ((id_entry->driver_data & FEC_QUIRK_ENET_MAC) && pdev->id > 0) { + if ((id_entry->driver_data & FEC_QUIRK_ENET_MAC) && fep->dev_id > 0) { /* fec1 uses fec0 mii_bus */ fep->mii_bus = fec0_mii_bus; return 0; @@ -1063,7 +1064,7 @@ static int fec_enet_mii_init(struct platform_device *pdev) fep->mii_bus->read = fec_enet_mdio_read; fep->mii_bus->write = fec_enet_mdio_write; fep->mii_bus->reset = fec_enet_mdio_reset; - snprintf(fep->mii_bus->id, MII_BUS_ID_SIZE, "%x", pdev->id + 1); + snprintf(fep->mii_bus->id, MII_BUS_ID_SIZE, "%x", fep->dev_id + 1); fep->mii_bus->priv = fep; fep->mii_bus->parent = &pdev->dev; @@ -1521,6 +1522,7 @@ fec_probe(struct platform_device *pdev) int i, irq, ret = 0; struct resource *r; const struct of_device_id *of_id; + static int dev_id; of_id = of_match_device(fec_dt_ids, &pdev->dev); if (of_id) @@ -1548,6 +1550,7 @@ fec_probe(struct platform_device *pdev) fep->hwp = ioremap(r->start, resource_size(r)); fep->pdev = pdev; + fep->dev_id = dev_id++; if (!fep->hwp) { ret = -ENOMEM; -- cgit v1.2.3 From a454daceb78844a09c08b6e2d8badcb76a5d73b9 Mon Sep 17 00:00:00 2001 From: Djalal Harouni Date: Tue, 6 Dec 2011 15:47:12 +0000 Subject: ppp: fix pptp double release_sock in pptp_bind() Signed-off-by: Djalal Harouni Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/ppp/pptp.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c index 89f829f5f72..f8a6853b692 100644 --- a/drivers/net/ppp/pptp.c +++ b/drivers/net/ppp/pptp.c @@ -423,10 +423,8 @@ static int pptp_bind(struct socket *sock, struct sockaddr *uservaddr, lock_sock(sk); opt->src_addr = sp->sa_addr.pptp; - if (add_chan(po)) { - release_sock(sk); + if (add_chan(po)) error = -EBUSY; - } release_sock(sk); return error; -- cgit v1.2.3 From 81e759fbf7715514c32e563789db1d9d47fd55fb Mon Sep 17 00:00:00 2001 From: Josh Durgin Date: Tue, 15 Nov 2011 14:49:53 -0800 Subject: rbd: return an error when an invalid header is read This protects against opening future rbd images that have incompatible format changes. Signed-off-by: Josh Durgin --- drivers/block/rbd.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 65cc424359b..a828c6a276a 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -461,6 +461,10 @@ static int rbd_header_from_disk(struct rbd_image_header *header, u32 snap_count = le32_to_cpu(ondisk->snap_count); int ret = -ENOMEM; + if (memcmp(ondisk, RBD_HEADER_TEXT, sizeof(RBD_HEADER_TEXT))) { + return -ENXIO; + } + init_rwsem(&header->snap_rwsem); header->snap_names_len = le64_to_cpu(ondisk->snap_names_len); header->snapc = kmalloc(sizeof(struct ceph_snap_context) + @@ -1610,8 +1614,13 @@ static int rbd_read_header(struct rbd_device *rbd_dev, goto out_dh; rc = rbd_header_from_disk(header, dh, snap_count, GFP_KERNEL); - if (rc < 0) + if (rc < 0) { + if (rc == -ENXIO) { + pr_warning("unrecognized header format" + " for image %s", rbd_dev->obj); + } goto out_dh; + } if (snap_count != header->total_snaps) { snap_count = header->total_snaps; -- cgit v1.2.3 From 51703306b3b9ea7c05728040998521e47358147b Mon Sep 17 00:00:00 2001 From: Josh Durgin Date: Mon, 24 Oct 2011 16:28:27 -0700 Subject: rbd: remove buggy rollback functionality This doesn't interact with resizing well, since it doesn't set the size of the device to the size at the snapshot. It's also an expensive operation to be synchronous. Rollback can still be done with the userspace rbd tool. Signed-off-by: Josh Durgin --- Documentation/ABI/testing/sysfs-bus-rbd | 7 --- drivers/block/rbd.c | 90 --------------------------------- 2 files changed, 97 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-bus-rbd b/Documentation/ABI/testing/sysfs-bus-rbd index fa72ccb2282..dbedafb095e 100644 --- a/Documentation/ABI/testing/sysfs-bus-rbd +++ b/Documentation/ABI/testing/sysfs-bus-rbd @@ -57,13 +57,6 @@ create_snap $ echo > /sys/bus/rbd/devices//snap_create -rollback_snap - - Rolls back data to the specified snapshot. This goes over the entire - list of rados blocks and sends a rollback command to each. - - $ echo > /sys/bus/rbd/devices//snap_rollback - snap_* A directory per each snapshot diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index a828c6a276a..148ab944378 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -183,10 +183,6 @@ static LIST_HEAD(rbd_client_list); /* clients */ static int __rbd_init_snaps_header(struct rbd_device *rbd_dev); static void rbd_dev_release(struct device *dev); -static ssize_t rbd_snap_rollback(struct device *dev, - struct device_attribute *attr, - const char *buf, - size_t size); static ssize_t rbd_snap_add(struct device *dev, struct device_attribute *attr, const char *buf, @@ -1359,32 +1355,6 @@ fail: return ret; } -/* - * Request sync osd rollback - */ -static int rbd_req_sync_rollback_obj(struct rbd_device *dev, - u64 snapid, - const char *obj) -{ - struct ceph_osd_req_op *ops; - int ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_ROLLBACK, 0); - if (ret < 0) - return ret; - - ops[0].snap.snapid = snapid; - - ret = rbd_req_sync_op(dev, NULL, - CEPH_NOSNAP, - 0, - CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK, - ops, - 1, obj, 0, 0, NULL, NULL, NULL); - - rbd_destroy_ops(ops); - - return ret; -} - /* * Request sync osd read */ @@ -1891,7 +1861,6 @@ static DEVICE_ATTR(name, S_IRUGO, rbd_name_show, NULL); static DEVICE_ATTR(refresh, S_IWUSR, NULL, rbd_image_refresh); static DEVICE_ATTR(current_snap, S_IRUGO, rbd_snap_show, NULL); static DEVICE_ATTR(create_snap, S_IWUSR, NULL, rbd_snap_add); -static DEVICE_ATTR(rollback_snap, S_IWUSR, NULL, rbd_snap_rollback); static struct attribute *rbd_attrs[] = { &dev_attr_size.attr, @@ -1902,7 +1871,6 @@ static struct attribute *rbd_attrs[] = { &dev_attr_current_snap.attr, &dev_attr_refresh.attr, &dev_attr_create_snap.attr, - &dev_attr_rollback_snap.attr, NULL }; @@ -2433,64 +2401,6 @@ err_unlock: return ret; } -static ssize_t rbd_snap_rollback(struct device *dev, - struct device_attribute *attr, - const char *buf, - size_t count) -{ - struct rbd_device *rbd_dev = dev_to_rbd(dev); - int ret; - u64 snapid; - u64 cur_ofs; - char *seg_name = NULL; - char *snap_name = kmalloc(count + 1, GFP_KERNEL); - ret = -ENOMEM; - if (!snap_name) - return ret; - - /* parse snaps add command */ - snprintf(snap_name, count, "%s", buf); - seg_name = kmalloc(RBD_MAX_SEG_NAME_LEN + 1, GFP_NOIO); - if (!seg_name) - goto done; - - mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); - - ret = snap_by_name(&rbd_dev->header, snap_name, &snapid, NULL); - if (ret < 0) - goto done_unlock; - - dout("snapid=%lld\n", snapid); - - cur_ofs = 0; - while (cur_ofs < rbd_dev->header.image_size) { - cur_ofs += rbd_get_segment(&rbd_dev->header, - rbd_dev->obj, - cur_ofs, (u64)-1, - seg_name, NULL); - dout("seg_name=%s\n", seg_name); - - ret = rbd_req_sync_rollback_obj(rbd_dev, snapid, seg_name); - if (ret < 0) - pr_warning("could not roll back obj %s err=%d\n", - seg_name, ret); - } - - ret = __rbd_update_snaps(rbd_dev); - if (ret < 0) - goto done_unlock; - - ret = count; - -done_unlock: - mutex_unlock(&ctl_mutex); -done: - kfree(seg_name); - kfree(snap_name); - - return ret; -} - static struct bus_attribute rbd_bus_attrs[] = { __ATTR(add, S_IWUSR, NULL, rbd_add), __ATTR(remove, S_IWUSR, NULL, rbd_remove), -- cgit v1.2.3 From be655596b3de5873f994ddbe205751a5ffb4de39 Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Wed, 30 Nov 2011 09:47:09 -0800 Subject: ceph: use i_ceph_lock instead of i_lock We have been using i_lock to protect all kinds of data structures in the ceph_inode_info struct, including lists of inodes that we need to iterate over while avoiding races with inode destruction. That requires grabbing a reference to the inode with the list lock protected, but igrab() now takes i_lock to check the inode flags. Changing the list lock ordering would be a painful process. However, using a ceph-specific i_ceph_lock in the ceph inode instead of i_lock is a simple mechanical change and avoids the ordering constraints imposed by igrab(). Reported-by: Amon Ott Signed-off-by: Sage Weil --- fs/ceph/addr.c | 8 +-- fs/ceph/caps.c | 187 ++++++++++++++++++++++++++------------------------- fs/ceph/dir.c | 24 +++---- fs/ceph/file.c | 20 +++--- fs/ceph/inode.c | 53 ++++++++------- fs/ceph/ioctl.c | 4 +- fs/ceph/mds_client.c | 32 ++++----- fs/ceph/mds_client.h | 2 +- fs/ceph/snap.c | 16 ++--- fs/ceph/super.h | 31 ++++----- fs/ceph/xattr.c | 42 ++++++------ 11 files changed, 212 insertions(+), 207 deletions(-) diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 4144caf2f9d..173b1d22e59 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -87,7 +87,7 @@ static int ceph_set_page_dirty(struct page *page) snapc = ceph_get_snap_context(ci->i_snap_realm->cached_context); /* dirty the head */ - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (ci->i_head_snapc == NULL) ci->i_head_snapc = ceph_get_snap_context(snapc); ++ci->i_wrbuffer_ref_head; @@ -100,7 +100,7 @@ static int ceph_set_page_dirty(struct page *page) ci->i_wrbuffer_ref-1, ci->i_wrbuffer_ref_head-1, ci->i_wrbuffer_ref, ci->i_wrbuffer_ref_head, snapc, snapc->seq, snapc->num_snaps); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); /* now adjust page */ spin_lock_irq(&mapping->tree_lock); @@ -391,7 +391,7 @@ static struct ceph_snap_context *get_oldest_context(struct inode *inode, struct ceph_snap_context *snapc = NULL; struct ceph_cap_snap *capsnap = NULL; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) { dout(" cap_snap %p snapc %p has %d dirty pages\n", capsnap, capsnap->context, capsnap->dirty_pages); @@ -407,7 +407,7 @@ static struct ceph_snap_context *get_oldest_context(struct inode *inode, dout(" head snapc %p has %d dirty pages\n", snapc, ci->i_wrbuffer_ref_head); } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return snapc; } diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 0f327c6c967..8b53193e4f7 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -309,7 +309,7 @@ void ceph_reservation_status(struct ceph_fs_client *fsc, /* * Find ceph_cap for given mds, if any. * - * Called with i_lock held. + * Called with i_ceph_lock held. */ static struct ceph_cap *__get_cap_for_mds(struct ceph_inode_info *ci, int mds) { @@ -332,9 +332,9 @@ struct ceph_cap *ceph_get_cap_for_mds(struct ceph_inode_info *ci, int mds) { struct ceph_cap *cap; - spin_lock(&ci->vfs_inode.i_lock); + spin_lock(&ci->i_ceph_lock); cap = __get_cap_for_mds(ci, mds); - spin_unlock(&ci->vfs_inode.i_lock); + spin_unlock(&ci->i_ceph_lock); return cap; } @@ -361,15 +361,16 @@ static int __ceph_get_cap_mds(struct ceph_inode_info *ci) int ceph_get_cap_mds(struct inode *inode) { + struct ceph_inode_info *ci = ceph_inode(inode); int mds; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); mds = __ceph_get_cap_mds(ceph_inode(inode)); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return mds; } /* - * Called under i_lock. + * Called under i_ceph_lock. */ static void __insert_cap_node(struct ceph_inode_info *ci, struct ceph_cap *new) @@ -415,7 +416,7 @@ static void __cap_set_timeouts(struct ceph_mds_client *mdsc, * * If I_FLUSH is set, leave the inode at the front of the list. * - * Caller holds i_lock + * Caller holds i_ceph_lock * -> we take mdsc->cap_delay_lock */ static void __cap_delay_requeue(struct ceph_mds_client *mdsc, @@ -457,7 +458,7 @@ static void __cap_delay_requeue_front(struct ceph_mds_client *mdsc, /* * Cancel delayed work on cap. * - * Caller must hold i_lock. + * Caller must hold i_ceph_lock. */ static void __cap_delay_cancel(struct ceph_mds_client *mdsc, struct ceph_inode_info *ci) @@ -532,14 +533,14 @@ int ceph_add_cap(struct inode *inode, wanted |= ceph_caps_for_mode(fmode); retry: - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); cap = __get_cap_for_mds(ci, mds); if (!cap) { if (new_cap) { cap = new_cap; new_cap = NULL; } else { - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); new_cap = get_cap(mdsc, caps_reservation); if (new_cap == NULL) return -ENOMEM; @@ -625,7 +626,7 @@ retry: if (fmode >= 0) __ceph_get_fmode(ci, fmode); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); wake_up_all(&ci->i_cap_wq); return 0; } @@ -792,7 +793,7 @@ int ceph_caps_revoking(struct ceph_inode_info *ci, int mask) struct rb_node *p; int ret = 0; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); for (p = rb_first(&ci->i_caps); p; p = rb_next(p)) { cap = rb_entry(p, struct ceph_cap, ci_node); if (__cap_is_valid(cap) && @@ -801,7 +802,7 @@ int ceph_caps_revoking(struct ceph_inode_info *ci, int mask) break; } } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); dout("ceph_caps_revoking %p %s = %d\n", inode, ceph_cap_string(mask), ret); return ret; @@ -855,7 +856,7 @@ int __ceph_caps_mds_wanted(struct ceph_inode_info *ci) } /* - * called under i_lock + * called under i_ceph_lock */ static int __ceph_is_any_caps(struct ceph_inode_info *ci) { @@ -865,7 +866,7 @@ static int __ceph_is_any_caps(struct ceph_inode_info *ci) /* * Remove a cap. Take steps to deal with a racing iterate_session_caps. * - * caller should hold i_lock. + * caller should hold i_ceph_lock. * caller will not hold session s_mutex if called from destroy_inode. */ void __ceph_remove_cap(struct ceph_cap *cap) @@ -1028,7 +1029,7 @@ static void __queue_cap_release(struct ceph_mds_session *session, /* * Queue cap releases when an inode is dropped from our cache. Since - * inode is about to be destroyed, there is no need for i_lock. + * inode is about to be destroyed, there is no need for i_ceph_lock. */ void ceph_queue_caps_release(struct inode *inode) { @@ -1049,7 +1050,7 @@ void ceph_queue_caps_release(struct inode *inode) /* * Send a cap msg on the given inode. Update our caps state, then - * drop i_lock and send the message. + * drop i_ceph_lock and send the message. * * Make note of max_size reported/requested from mds, revoked caps * that have now been implemented. @@ -1061,13 +1062,13 @@ void ceph_queue_caps_release(struct inode *inode) * Return non-zero if delayed release, or we experienced an error * such that the caller should requeue + retry later. * - * called with i_lock, then drops it. + * called with i_ceph_lock, then drops it. * caller should hold snap_rwsem (read), s_mutex. */ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap, int op, int used, int want, int retain, int flushing, unsigned *pflush_tid) - __releases(cap->ci->vfs_inode->i_lock) + __releases(cap->ci->i_ceph_lock) { struct ceph_inode_info *ci = cap->ci; struct inode *inode = &ci->vfs_inode; @@ -1170,7 +1171,7 @@ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap, xattr_version = ci->i_xattrs.version; } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); ret = send_cap_msg(session, ceph_vino(inode).ino, cap_id, op, keep, want, flushing, seq, flush_tid, issue_seq, mseq, @@ -1198,13 +1199,13 @@ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap, * Unless @again is true, skip cap_snaps that were already sent to * the MDS (i.e., during this session). * - * Called under i_lock. Takes s_mutex as needed. + * Called under i_ceph_lock. Takes s_mutex as needed. */ void __ceph_flush_snaps(struct ceph_inode_info *ci, struct ceph_mds_session **psession, int again) - __releases(ci->vfs_inode->i_lock) - __acquires(ci->vfs_inode->i_lock) + __releases(ci->i_ceph_lock) + __acquires(ci->i_ceph_lock) { struct inode *inode = &ci->vfs_inode; int mds; @@ -1261,7 +1262,7 @@ retry: session = NULL; } if (!session) { - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); mutex_lock(&mdsc->mutex); session = __ceph_lookup_mds_session(mdsc, mds); mutex_unlock(&mdsc->mutex); @@ -1275,7 +1276,7 @@ retry: * deletion or migration. retry, and we'll * get a better @mds value next time. */ - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); goto retry; } @@ -1285,7 +1286,7 @@ retry: list_del_init(&capsnap->flushing_item); list_add_tail(&capsnap->flushing_item, &session->s_cap_snaps_flushing); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); dout("flush_snaps %p cap_snap %p follows %lld tid %llu\n", inode, capsnap, capsnap->follows, capsnap->flush_tid); @@ -1302,7 +1303,7 @@ retry: next_follows = capsnap->follows + 1; ceph_put_cap_snap(capsnap); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); goto retry; } @@ -1322,11 +1323,9 @@ out: static void ceph_flush_snaps(struct ceph_inode_info *ci) { - struct inode *inode = &ci->vfs_inode; - - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); __ceph_flush_snaps(ci, NULL, 0); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } /* @@ -1373,7 +1372,7 @@ int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask) * Add dirty inode to the flushing list. Assigned a seq number so we * can wait for caps to flush without starving. * - * Called under i_lock. + * Called under i_ceph_lock. */ static int __mark_caps_flushing(struct inode *inode, struct ceph_mds_session *session) @@ -1421,9 +1420,9 @@ static int try_nonblocking_invalidate(struct inode *inode) struct ceph_inode_info *ci = ceph_inode(inode); u32 invalidating_gen = ci->i_rdcache_gen; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); invalidate_mapping_pages(&inode->i_data, 0, -1); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (inode->i_data.nrpages == 0 && invalidating_gen == ci->i_rdcache_gen) { @@ -1470,7 +1469,7 @@ void ceph_check_caps(struct ceph_inode_info *ci, int flags, if (mdsc->stopping) is_delayed = 1; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (ci->i_ceph_flags & CEPH_I_FLUSH) flags |= CHECK_CAPS_FLUSH; @@ -1480,7 +1479,7 @@ void ceph_check_caps(struct ceph_inode_info *ci, int flags, __ceph_flush_snaps(ci, &session, 0); goto retry_locked; retry: - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); retry_locked: file_wanted = __ceph_caps_file_wanted(ci); used = __ceph_caps_used(ci); @@ -1634,7 +1633,7 @@ ack: if (mutex_trylock(&session->s_mutex) == 0) { dout("inverting session/ino locks on %p\n", session); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (took_snap_rwsem) { up_read(&mdsc->snap_rwsem); took_snap_rwsem = 0; @@ -1648,7 +1647,7 @@ ack: if (down_read_trylock(&mdsc->snap_rwsem) == 0) { dout("inverting snap/in locks on %p\n", inode); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); down_read(&mdsc->snap_rwsem); took_snap_rwsem = 1; goto retry; @@ -1664,10 +1663,10 @@ ack: mds = cap->mds; /* remember mds, so we don't repeat */ sent++; - /* __send_cap drops i_lock */ + /* __send_cap drops i_ceph_lock */ delayed += __send_cap(mdsc, cap, CEPH_CAP_OP_UPDATE, used, want, retain, flushing, NULL); - goto retry; /* retake i_lock and restart our cap scan. */ + goto retry; /* retake i_ceph_lock and restart our cap scan. */ } /* @@ -1681,7 +1680,7 @@ ack: else if (!is_delayed || force_requeue) __cap_delay_requeue(mdsc, ci); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (queue_invalidate) ceph_queue_invalidate(inode); @@ -1704,7 +1703,7 @@ static int try_flush_caps(struct inode *inode, struct ceph_mds_session *session, int flushing = 0; retry: - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (ci->i_ceph_flags & CEPH_I_NOFLUSH) { dout("try_flush_caps skipping %p I_NOFLUSH set\n", inode); goto out; @@ -1716,7 +1715,7 @@ retry: int delayed; if (!session) { - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); session = cap->session; mutex_lock(&session->s_mutex); goto retry; @@ -1727,18 +1726,18 @@ retry: flushing = __mark_caps_flushing(inode, session); - /* __send_cap drops i_lock */ + /* __send_cap drops i_ceph_lock */ delayed = __send_cap(mdsc, cap, CEPH_CAP_OP_FLUSH, used, want, cap->issued | cap->implemented, flushing, flush_tid); if (!delayed) goto out_unlocked; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); __cap_delay_requeue(mdsc, ci); } out: - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); out_unlocked: if (session && unlock_session) mutex_unlock(&session->s_mutex); @@ -1753,7 +1752,7 @@ static int caps_are_flushed(struct inode *inode, unsigned tid) struct ceph_inode_info *ci = ceph_inode(inode); int i, ret = 1; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); for (i = 0; i < CEPH_CAP_BITS; i++) if ((ci->i_flushing_caps & (1 << i)) && ci->i_cap_flush_tid[i] <= tid) { @@ -1761,7 +1760,7 @@ static int caps_are_flushed(struct inode *inode, unsigned tid) ret = 0; break; } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return ret; } @@ -1868,10 +1867,10 @@ int ceph_write_inode(struct inode *inode, struct writeback_control *wbc) struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (__ceph_caps_dirty(ci)) __cap_delay_requeue_front(mdsc, ci); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } return err; } @@ -1894,7 +1893,7 @@ static void kick_flushing_capsnaps(struct ceph_mds_client *mdsc, struct inode *inode = &ci->vfs_inode; struct ceph_cap *cap; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); cap = ci->i_auth_cap; if (cap && cap->session == session) { dout("kick_flushing_caps %p cap %p capsnap %p\n", inode, @@ -1904,7 +1903,7 @@ static void kick_flushing_capsnaps(struct ceph_mds_client *mdsc, pr_err("%p auth cap %p not mds%d ???\n", inode, cap, session->s_mds); } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } } @@ -1921,7 +1920,7 @@ void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc, struct ceph_cap *cap; int delayed = 0; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); cap = ci->i_auth_cap; if (cap && cap->session == session) { dout("kick_flushing_caps %p cap %p %s\n", inode, @@ -1932,14 +1931,14 @@ void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc, cap->issued | cap->implemented, ci->i_flushing_caps, NULL); if (delayed) { - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); __cap_delay_requeue(mdsc, ci); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } } else { pr_err("%p auth cap %p not mds%d ???\n", inode, cap, session->s_mds); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } } } @@ -1952,7 +1951,7 @@ static void kick_flushing_inode_caps(struct ceph_mds_client *mdsc, struct ceph_cap *cap; int delayed = 0; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); cap = ci->i_auth_cap; dout("kick_flushing_inode_caps %p flushing %s flush_seq %lld\n", inode, ceph_cap_string(ci->i_flushing_caps), ci->i_cap_flush_seq); @@ -1964,12 +1963,12 @@ static void kick_flushing_inode_caps(struct ceph_mds_client *mdsc, cap->issued | cap->implemented, ci->i_flushing_caps, NULL); if (delayed) { - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); __cap_delay_requeue(mdsc, ci); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } } else { - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } } @@ -1978,7 +1977,7 @@ static void kick_flushing_inode_caps(struct ceph_mds_client *mdsc, * Take references to capabilities we hold, so that we don't release * them to the MDS prematurely. * - * Protected by i_lock. + * Protected by i_ceph_lock. */ static void __take_cap_refs(struct ceph_inode_info *ci, int got) { @@ -2016,7 +2015,7 @@ static int try_get_cap_refs(struct ceph_inode_info *ci, int need, int want, dout("get_cap_refs %p need %s want %s\n", inode, ceph_cap_string(need), ceph_cap_string(want)); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); /* make sure file is actually open */ file_wanted = __ceph_caps_file_wanted(ci); @@ -2077,7 +2076,7 @@ static int try_get_cap_refs(struct ceph_inode_info *ci, int need, int want, ceph_cap_string(have), ceph_cap_string(need)); } out: - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); dout("get_cap_refs %p ret %d got %s\n", inode, ret, ceph_cap_string(*got)); return ret; @@ -2094,7 +2093,7 @@ static void check_max_size(struct inode *inode, loff_t endoff) int check = 0; /* do we need to explicitly request a larger max_size? */ - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if ((endoff >= ci->i_max_size || endoff > (inode->i_size << 1)) && endoff > ci->i_wanted_max_size) { @@ -2103,7 +2102,7 @@ static void check_max_size(struct inode *inode, loff_t endoff) ci->i_wanted_max_size = endoff; check = 1; } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (check) ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL); } @@ -2140,9 +2139,9 @@ retry: */ void ceph_get_cap_refs(struct ceph_inode_info *ci, int caps) { - spin_lock(&ci->vfs_inode.i_lock); + spin_lock(&ci->i_ceph_lock); __take_cap_refs(ci, caps); - spin_unlock(&ci->vfs_inode.i_lock); + spin_unlock(&ci->i_ceph_lock); } /* @@ -2160,7 +2159,7 @@ void ceph_put_cap_refs(struct ceph_inode_info *ci, int had) int last = 0, put = 0, flushsnaps = 0, wake = 0; struct ceph_cap_snap *capsnap; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (had & CEPH_CAP_PIN) --ci->i_pin_ref; if (had & CEPH_CAP_FILE_RD) @@ -2193,7 +2192,7 @@ void ceph_put_cap_refs(struct ceph_inode_info *ci, int had) } } } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); dout("put_cap_refs %p had %s%s%s\n", inode, ceph_cap_string(had), last ? " last" : "", put ? " put" : ""); @@ -2225,7 +2224,7 @@ void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr, int found = 0; struct ceph_cap_snap *capsnap = NULL; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); ci->i_wrbuffer_ref -= nr; last = !ci->i_wrbuffer_ref; @@ -2274,7 +2273,7 @@ void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr, } } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (last) { ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL); @@ -2291,7 +2290,7 @@ void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr, * Handle a cap GRANT message from the MDS. (Note that a GRANT may * actually be a revocation if it specifies a smaller cap set.) * - * caller holds s_mutex and i_lock, we drop both. + * caller holds s_mutex and i_ceph_lock, we drop both. * * return value: * 0 - ok @@ -2302,7 +2301,7 @@ static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant, struct ceph_mds_session *session, struct ceph_cap *cap, struct ceph_buffer *xattr_buf) - __releases(inode->i_lock) + __releases(ci->i_ceph_lock) { struct ceph_inode_info *ci = ceph_inode(inode); int mds = session->s_mds; @@ -2453,7 +2452,7 @@ static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant, } BUG_ON(cap->issued & ~cap->implemented); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (writeback) /* * queue inode for writeback: we can't actually call @@ -2483,7 +2482,7 @@ static void handle_cap_flush_ack(struct inode *inode, u64 flush_tid, struct ceph_mds_caps *m, struct ceph_mds_session *session, struct ceph_cap *cap) - __releases(inode->i_lock) + __releases(ci->i_ceph_lock) { struct ceph_inode_info *ci = ceph_inode(inode); struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc; @@ -2539,7 +2538,7 @@ static void handle_cap_flush_ack(struct inode *inode, u64 flush_tid, wake_up_all(&ci->i_cap_wq); out: - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (drop) iput(inode); } @@ -2562,7 +2561,7 @@ static void handle_cap_flushsnap_ack(struct inode *inode, u64 flush_tid, dout("handle_cap_flushsnap_ack inode %p ci %p mds%d follows %lld\n", inode, ci, session->s_mds, follows); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) { if (capsnap->follows == follows) { if (capsnap->flush_tid != flush_tid) { @@ -2585,7 +2584,7 @@ static void handle_cap_flushsnap_ack(struct inode *inode, u64 flush_tid, capsnap, capsnap->follows); } } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (drop) iput(inode); } @@ -2598,7 +2597,7 @@ static void handle_cap_flushsnap_ack(struct inode *inode, u64 flush_tid, static void handle_cap_trunc(struct inode *inode, struct ceph_mds_caps *trunc, struct ceph_mds_session *session) - __releases(inode->i_lock) + __releases(ci->i_ceph_lock) { struct ceph_inode_info *ci = ceph_inode(inode); int mds = session->s_mds; @@ -2617,7 +2616,7 @@ static void handle_cap_trunc(struct inode *inode, inode, mds, seq, truncate_size, truncate_seq); queue_trunc = ceph_fill_file_size(inode, issued, truncate_seq, truncate_size, size); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (queue_trunc) ceph_queue_vmtruncate(inode); @@ -2646,7 +2645,7 @@ static void handle_cap_export(struct inode *inode, struct ceph_mds_caps *ex, dout("handle_cap_export inode %p ci %p mds%d mseq %d\n", inode, ci, mds, mseq); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); /* make sure we haven't seen a higher mseq */ for (p = rb_first(&ci->i_caps); p; p = rb_next(p)) { @@ -2690,7 +2689,7 @@ static void handle_cap_export(struct inode *inode, struct ceph_mds_caps *ex, } /* else, we already released it */ - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } /* @@ -2745,9 +2744,9 @@ static void handle_cap_import(struct ceph_mds_client *mdsc, up_read(&mdsc->snap_rwsem); /* make sure we re-request max_size, if necessary */ - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); ci->i_requested_max_size = 0; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } /* @@ -2762,6 +2761,7 @@ void ceph_handle_caps(struct ceph_mds_session *session, struct ceph_mds_client *mdsc = session->s_mdsc; struct super_block *sb = mdsc->fsc->sb; struct inode *inode; + struct ceph_inode_info *ci; struct ceph_cap *cap; struct ceph_mds_caps *h; int mds = session->s_mds; @@ -2815,6 +2815,7 @@ void ceph_handle_caps(struct ceph_mds_session *session, /* lookup ino */ inode = ceph_find_inode(sb, vino); + ci = ceph_inode(inode); dout(" op %s ino %llx.%llx inode %p\n", ceph_cap_op_name(op), vino.ino, vino.snap, inode); if (!inode) { @@ -2844,16 +2845,16 @@ void ceph_handle_caps(struct ceph_mds_session *session, } /* the rest require a cap */ - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); cap = __get_cap_for_mds(ceph_inode(inode), mds); if (!cap) { dout(" no cap on %p ino %llx.%llx from mds%d\n", inode, ceph_ino(inode), ceph_snap(inode), mds); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); goto flush_cap_releases; } - /* note that each of these drops i_lock for us */ + /* note that each of these drops i_ceph_lock for us */ switch (op) { case CEPH_CAP_OP_REVOKE: case CEPH_CAP_OP_GRANT: @@ -2869,7 +2870,7 @@ void ceph_handle_caps(struct ceph_mds_session *session, break; default: - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); pr_err("ceph_handle_caps: unknown cap op %d %s\n", op, ceph_cap_op_name(op)); } @@ -2962,13 +2963,13 @@ void ceph_put_fmode(struct ceph_inode_info *ci, int fmode) struct inode *inode = &ci->vfs_inode; int last = 0; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); dout("put_fmode %p fmode %d %d -> %d\n", inode, fmode, ci->i_nr_by_mode[fmode], ci->i_nr_by_mode[fmode]-1); BUG_ON(ci->i_nr_by_mode[fmode] == 0); if (--ci->i_nr_by_mode[fmode] == 0) last++; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (last && ci->i_vino.snap == CEPH_NOSNAP) ceph_check_caps(ci, 0, NULL); @@ -2991,7 +2992,7 @@ int ceph_encode_inode_release(void **p, struct inode *inode, int used, dirty; int ret = 0; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); used = __ceph_caps_used(ci); dirty = __ceph_caps_dirty(ci); @@ -3046,7 +3047,7 @@ int ceph_encode_inode_release(void **p, struct inode *inode, inode, cap, ceph_cap_string(cap->issued)); } } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return ret; } @@ -3061,7 +3062,7 @@ int ceph_encode_dentry_release(void **p, struct dentry *dentry, /* * force an record for the directory caps if we have a dentry lease. - * this is racy (can't take i_lock and d_lock together), but it + * this is racy (can't take i_ceph_lock and d_lock together), but it * doesn't have to be perfect; the mds will revoke anything we don't * release. */ diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index bca3948e9db..3eeb9766126 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -281,18 +281,18 @@ static int ceph_readdir(struct file *filp, void *dirent, filldir_t filldir) } /* can we use the dcache? */ - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if ((filp->f_pos == 2 || fi->dentry) && !ceph_test_mount_opt(fsc, NOASYNCREADDIR) && ceph_snap(inode) != CEPH_SNAPDIR && ceph_dir_test_complete(inode) && __ceph_caps_issued_mask(ci, CEPH_CAP_FILE_SHARED, 1)) { - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); err = __dcache_readdir(filp, dirent, filldir); if (err != -EAGAIN) return err; } else { - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } if (fi->dentry) { err = note_last_dentry(fi, fi->dentry->d_name.name, @@ -428,12 +428,12 @@ more: * were released during the whole readdir, and we should have * the complete dir contents in our cache. */ - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (ci->i_release_count == fi->dir_release_count) { ceph_dir_set_complete(inode); ci->i_max_offset = filp->f_pos; } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); dout("readdir %p filp %p done.\n", inode, filp); return 0; @@ -607,7 +607,7 @@ static struct dentry *ceph_lookup(struct inode *dir, struct dentry *dentry, struct ceph_inode_info *ci = ceph_inode(dir); struct ceph_dentry_info *di = ceph_dentry(dentry); - spin_lock(&dir->i_lock); + spin_lock(&ci->i_ceph_lock); dout(" dir %p flags are %d\n", dir, ci->i_ceph_flags); if (strncmp(dentry->d_name.name, fsc->mount_options->snapdir_name, @@ -615,13 +615,13 @@ static struct dentry *ceph_lookup(struct inode *dir, struct dentry *dentry, !is_root_ceph_dentry(dir, dentry) && ceph_dir_test_complete(dir) && (__ceph_caps_issued_mask(ci, CEPH_CAP_FILE_SHARED, 1))) { - spin_unlock(&dir->i_lock); + spin_unlock(&ci->i_ceph_lock); dout(" dir %p complete, -ENOENT\n", dir); d_add(dentry, NULL); di->lease_shared_gen = ci->i_shared_gen; return NULL; } - spin_unlock(&dir->i_lock); + spin_unlock(&ci->i_ceph_lock); } op = ceph_snap(dir) == CEPH_SNAPDIR ? @@ -841,12 +841,12 @@ static int drop_caps_for_unlink(struct inode *inode) struct ceph_inode_info *ci = ceph_inode(inode); int drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (inode->i_nlink == 1) { drop |= ~(__ceph_caps_wanted(ci) | CEPH_CAP_PIN); ci->i_ceph_flags |= CEPH_I_NODELAY; } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return drop; } @@ -1015,10 +1015,10 @@ static int dir_lease_is_valid(struct inode *dir, struct dentry *dentry) struct ceph_dentry_info *di = ceph_dentry(dentry); int valid = 0; - spin_lock(&dir->i_lock); + spin_lock(&ci->i_ceph_lock); if (ci->i_shared_gen == di->lease_shared_gen) valid = __ceph_caps_issued_mask(ci, CEPH_CAP_FILE_SHARED, 1); - spin_unlock(&dir->i_lock); + spin_unlock(&ci->i_ceph_lock); dout("dir_lease_is_valid dir %p v%u dentry %p v%u = %d\n", dir, (unsigned)ci->i_shared_gen, dentry, (unsigned)di->lease_shared_gen, valid); diff --git a/fs/ceph/file.c b/fs/ceph/file.c index ce549d31eeb..af187330cc8 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -147,9 +147,9 @@ int ceph_open(struct inode *inode, struct file *file) /* trivially open snapdir */ if (ceph_snap(inode) == CEPH_SNAPDIR) { - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); __ceph_get_fmode(ci, fmode); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return ceph_init_file(inode, file, fmode); } @@ -158,7 +158,7 @@ int ceph_open(struct inode *inode, struct file *file) * write) or any MDS (for read). Update wanted set * asynchronously. */ - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (__ceph_is_any_real_caps(ci) && (((fmode & CEPH_FILE_MODE_WR) == 0) || ci->i_auth_cap)) { int mds_wanted = __ceph_caps_mds_wanted(ci); @@ -168,7 +168,7 @@ int ceph_open(struct inode *inode, struct file *file) inode, fmode, ceph_cap_string(wanted), ceph_cap_string(issued)); __ceph_get_fmode(ci, fmode); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); /* adjust wanted? */ if ((issued & wanted) != wanted && @@ -180,10 +180,10 @@ int ceph_open(struct inode *inode, struct file *file) } else if (ceph_snap(inode) != CEPH_NOSNAP && (ci->i_snap_caps & wanted) == wanted) { __ceph_get_fmode(ci, fmode); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return ceph_init_file(inode, file, fmode); } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); dout("open fmode %d wants %s\n", fmode, ceph_cap_string(wanted)); req = prepare_open_request(inode->i_sb, flags, 0); @@ -743,9 +743,9 @@ retry_snap: */ int dirty; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); ceph_put_cap_refs(ci, got); ret = generic_file_aio_write(iocb, iov, nr_segs, pos); @@ -764,9 +764,9 @@ retry_snap: if (ret >= 0) { int dirty; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (dirty) __mark_inode_dirty(inode, dirty); } diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 116f36502f1..87fb132fb33 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -297,6 +297,8 @@ struct inode *ceph_alloc_inode(struct super_block *sb) dout("alloc_inode %p\n", &ci->vfs_inode); + spin_lock_init(&ci->i_ceph_lock); + ci->i_version = 0; ci->i_time_warp_seq = 0; ci->i_ceph_flags = 0; @@ -583,7 +585,7 @@ static int fill_inode(struct inode *inode, iinfo->xattr_len); } - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); /* * provided version will be odd if inode value is projected, @@ -680,7 +682,7 @@ static int fill_inode(struct inode *inode, char *sym; BUG_ON(symlen != inode->i_size); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); err = -ENOMEM; sym = kmalloc(symlen+1, GFP_NOFS); @@ -689,7 +691,7 @@ static int fill_inode(struct inode *inode, memcpy(sym, iinfo->symlink, symlen); sym[symlen] = 0; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (!ci->i_symlink) ci->i_symlink = sym; else @@ -715,7 +717,7 @@ static int fill_inode(struct inode *inode, } no_change: - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); /* queue truncate if we saw i_size decrease */ if (queue_trunc) @@ -750,13 +752,13 @@ no_change: info->cap.flags, caps_reservation); } else { - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); dout(" %p got snap_caps %s\n", inode, ceph_cap_string(le32_to_cpu(info->cap.caps))); ci->i_snap_caps |= le32_to_cpu(info->cap.caps); if (cap_fmode >= 0) __ceph_get_fmode(ci, cap_fmode); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } } else if (cap_fmode >= 0) { pr_warning("mds issued no caps on %llx.%llx\n", @@ -849,19 +851,20 @@ static void ceph_set_dentry_offset(struct dentry *dn) { struct dentry *dir = dn->d_parent; struct inode *inode = dir->d_inode; + struct ceph_inode_info *ci = ceph_inode(inode); struct ceph_dentry_info *di; BUG_ON(!inode); di = ceph_dentry(dn); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (!ceph_dir_test_complete(inode)) { - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return; } di->offset = ceph_inode(inode)->i_max_offset++; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); spin_lock(&dir->d_lock); spin_lock_nested(&dn->d_lock, DENTRY_D_LOCK_NESTED); @@ -1308,7 +1311,7 @@ int ceph_inode_set_size(struct inode *inode, loff_t size) struct ceph_inode_info *ci = ceph_inode(inode); int ret = 0; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); dout("set_size %p %llu -> %llu\n", inode, inode->i_size, size); inode->i_size = size; inode->i_blocks = (size + (1 << 9) - 1) >> 9; @@ -1318,7 +1321,7 @@ int ceph_inode_set_size(struct inode *inode, loff_t size) (ci->i_reported_size << 1) < ci->i_max_size) ret = 1; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return ret; } @@ -1376,20 +1379,20 @@ static void ceph_invalidate_work(struct work_struct *work) u32 orig_gen; int check = 0; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); dout("invalidate_pages %p gen %d revoking %d\n", inode, ci->i_rdcache_gen, ci->i_rdcache_revoking); if (ci->i_rdcache_revoking != ci->i_rdcache_gen) { /* nevermind! */ - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); goto out; } orig_gen = ci->i_rdcache_gen; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); truncate_inode_pages(&inode->i_data, 0); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (orig_gen == ci->i_rdcache_gen && orig_gen == ci->i_rdcache_revoking) { dout("invalidate_pages %p gen %d successful\n", inode, @@ -1401,7 +1404,7 @@ static void ceph_invalidate_work(struct work_struct *work) inode, orig_gen, ci->i_rdcache_gen, ci->i_rdcache_revoking); } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (check) ceph_check_caps(ci, 0, NULL); @@ -1460,10 +1463,10 @@ void __ceph_do_pending_vmtruncate(struct inode *inode) int wrbuffer_refs, wake = 0; retry: - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (ci->i_truncate_pending == 0) { dout("__do_pending_vmtruncate %p none pending\n", inode); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return; } @@ -1474,7 +1477,7 @@ retry: if (ci->i_wrbuffer_ref_head < ci->i_wrbuffer_ref) { dout("__do_pending_vmtruncate %p flushing snaps first\n", inode); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); filemap_write_and_wait_range(&inode->i_data, 0, inode->i_sb->s_maxbytes); goto retry; @@ -1484,15 +1487,15 @@ retry: wrbuffer_refs = ci->i_wrbuffer_ref; dout("__do_pending_vmtruncate %p (%d) to %lld\n", inode, ci->i_truncate_pending, to); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); truncate_inode_pages(inode->i_mapping, to); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); ci->i_truncate_pending--; if (ci->i_truncate_pending == 0) wake = 1; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (wrbuffer_refs == 0) ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL); @@ -1547,7 +1550,7 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr) if (IS_ERR(req)) return PTR_ERR(req); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); issued = __ceph_caps_issued(ci, NULL); dout("setattr %p issued %s\n", inode, ceph_cap_string(issued)); @@ -1695,7 +1698,7 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr) } release &= issued; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (inode_dirty_flags) __mark_inode_dirty(inode, inode_dirty_flags); @@ -1717,7 +1720,7 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr) __ceph_do_pending_vmtruncate(inode); return err; out: - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); ceph_mdsc_put_request(req); return err; } diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c index 5a14c29cbba..790914a598d 100644 --- a/fs/ceph/ioctl.c +++ b/fs/ceph/ioctl.c @@ -241,11 +241,11 @@ static long ceph_ioctl_lazyio(struct file *file) struct ceph_inode_info *ci = ceph_inode(inode); if ((fi->fmode & CEPH_FILE_MODE_LAZY) == 0) { - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); ci->i_nr_by_mode[fi->fmode]--; fi->fmode |= CEPH_FILE_MODE_LAZY; ci->i_nr_by_mode[fi->fmode]++; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); dout("ioctl_layzio: file %p marked lazy\n", file); ceph_check_caps(ci, 0, NULL); diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 264ab701154..34bc35084ae 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -732,21 +732,21 @@ static int __choose_mds(struct ceph_mds_client *mdsc, } } - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); cap = NULL; if (mode == USE_AUTH_MDS) cap = ci->i_auth_cap; if (!cap && !RB_EMPTY_ROOT(&ci->i_caps)) cap = rb_entry(rb_first(&ci->i_caps), struct ceph_cap, ci_node); if (!cap) { - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); goto random; } mds = cap->session->s_mds; dout("choose_mds %p %llx.%llx mds%d (%scap %p)\n", inode, ceph_vinop(inode), mds, cap == ci->i_auth_cap ? "auth " : "", cap); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return mds; random: @@ -951,7 +951,7 @@ static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap, dout("removing cap %p, ci is %p, inode is %p\n", cap, ci, &ci->vfs_inode); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); __ceph_remove_cap(cap); if (!__ceph_is_any_real_caps(ci)) { struct ceph_mds_client *mdsc = @@ -984,7 +984,7 @@ static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap, } spin_unlock(&mdsc->cap_dirty_lock); } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); while (drop--) iput(inode); return 0; @@ -1015,10 +1015,10 @@ static int wake_up_session_cb(struct inode *inode, struct ceph_cap *cap, wake_up_all(&ci->i_cap_wq); if (arg) { - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); ci->i_wanted_max_size = 0; ci->i_requested_max_size = 0; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } return 0; } @@ -1151,7 +1151,7 @@ static int trim_caps_cb(struct inode *inode, struct ceph_cap *cap, void *arg) if (session->s_trim_caps <= 0) return -1; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); mine = cap->issued | cap->implemented; used = __ceph_caps_used(ci); oissued = __ceph_caps_issued_other(ci, cap); @@ -1170,7 +1170,7 @@ static int trim_caps_cb(struct inode *inode, struct ceph_cap *cap, void *arg) __ceph_remove_cap(cap); } else { /* try to drop referring dentries */ - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); d_prune_aliases(inode); dout("trim_caps_cb %p cap %p pruned, count now %d\n", inode, cap, atomic_read(&inode->i_count)); @@ -1178,7 +1178,7 @@ static int trim_caps_cb(struct inode *inode, struct ceph_cap *cap, void *arg) } out: - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return 0; } @@ -1296,7 +1296,7 @@ static int check_cap_flush(struct ceph_mds_client *mdsc, u64 want_flush_seq) i_flushing_item); struct inode *inode = &ci->vfs_inode; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (ci->i_cap_flush_seq <= want_flush_seq) { dout("check_cap_flush still flushing %p " "seq %lld <= %lld to mds%d\n", inode, @@ -1304,7 +1304,7 @@ static int check_cap_flush(struct ceph_mds_client *mdsc, u64 want_flush_seq) session->s_mds); ret = 0; } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } mutex_unlock(&session->s_mutex); ceph_put_mds_session(session); @@ -2011,10 +2011,10 @@ void ceph_invalidate_dir_request(struct ceph_mds_request *req) struct ceph_inode_info *ci = ceph_inode(inode); dout("invalidate_dir_request %p (D_COMPLETE, lease(s))\n", inode); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); ceph_dir_clear_complete(inode); ci->i_release_count++; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (req->r_dentry) ceph_invalidate_dentry_lease(req->r_dentry); @@ -2422,7 +2422,7 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap, if (err) goto out_free; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); cap->seq = 0; /* reset cap seq */ cap->issue_seq = 0; /* and issue_seq */ @@ -2445,7 +2445,7 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap, rec.v1.pathbase = cpu_to_le64(pathbase); reclen = sizeof(rec.v1); } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (recon_state->flock) { int num_fcntl_locks, num_flock_locks; diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h index 4bb239921db..a50ca0e3947 100644 --- a/fs/ceph/mds_client.h +++ b/fs/ceph/mds_client.h @@ -20,7 +20,7 @@ * * mdsc->snap_rwsem * - * inode->i_lock + * ci->i_ceph_lock * mdsc->snap_flush_lock * mdsc->cap_delay_lock * diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c index e2643719133..a559c80f127 100644 --- a/fs/ceph/snap.c +++ b/fs/ceph/snap.c @@ -446,7 +446,7 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci) return; } - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); used = __ceph_caps_used(ci); dirty = __ceph_caps_dirty(ci); @@ -528,7 +528,7 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci) kfree(capsnap); } - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } /* @@ -537,7 +537,7 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci) * * If capsnap can now be flushed, add to snap_flush list, and return 1. * - * Caller must hold i_lock. + * Caller must hold i_ceph_lock. */ int __ceph_finish_cap_snap(struct ceph_inode_info *ci, struct ceph_cap_snap *capsnap) @@ -739,9 +739,9 @@ static void flush_snaps(struct ceph_mds_client *mdsc) inode = &ci->vfs_inode; ihold(inode); spin_unlock(&mdsc->snap_flush_lock); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); __ceph_flush_snaps(ci, &session, 0); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); iput(inode); spin_lock(&mdsc->snap_flush_lock); } @@ -847,7 +847,7 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc, continue; ci = ceph_inode(inode); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (!ci->i_snap_realm) goto skip_inode; /* @@ -876,7 +876,7 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc, oldrealm = ci->i_snap_realm; ci->i_snap_realm = realm; spin_unlock(&realm->inodes_with_caps_lock); - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); ceph_get_snap_realm(mdsc, realm); ceph_put_snap_realm(mdsc, oldrealm); @@ -885,7 +885,7 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc, continue; skip_inode: - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); iput(inode); } diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 01bf189e08a..edcbf3774a5 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -220,7 +220,7 @@ struct ceph_dentry_info { * The locking for D_COMPLETE is a bit odd: * - we can clear it at almost any time (see ceph_d_prune) * - it is only meaningful if: - * - we hold dir inode i_lock + * - we hold dir inode i_ceph_lock * - we hold dir FILE_SHARED caps * - the dentry D_COMPLETE is set */ @@ -250,6 +250,8 @@ struct ceph_inode_xattrs_info { struct ceph_inode_info { struct ceph_vino i_vino; /* ceph ino + snap */ + spinlock_t i_ceph_lock; + u64 i_version; u32 i_time_warp_seq; @@ -271,7 +273,7 @@ struct ceph_inode_info { struct ceph_inode_xattrs_info i_xattrs; - /* capabilities. protected _both_ by i_lock and cap->session's + /* capabilities. protected _both_ by i_ceph_lock and cap->session's * s_mutex. */ struct rb_root i_caps; /* cap list */ struct ceph_cap *i_auth_cap; /* authoritative cap, if any */ @@ -437,18 +439,18 @@ static inline void ceph_i_clear(struct inode *inode, unsigned mask) { struct ceph_inode_info *ci = ceph_inode(inode); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); ci->i_ceph_flags &= ~mask; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } static inline void ceph_i_set(struct inode *inode, unsigned mask) { struct ceph_inode_info *ci = ceph_inode(inode); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); ci->i_ceph_flags |= mask; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); } static inline bool ceph_i_test(struct inode *inode, unsigned mask) @@ -456,9 +458,9 @@ static inline bool ceph_i_test(struct inode *inode, unsigned mask) struct ceph_inode_info *ci = ceph_inode(inode); bool r; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); r = (ci->i_ceph_flags & mask) == mask; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return r; } @@ -508,9 +510,9 @@ extern int __ceph_caps_issued_other(struct ceph_inode_info *ci, static inline int ceph_caps_issued(struct ceph_inode_info *ci) { int issued; - spin_lock(&ci->vfs_inode.i_lock); + spin_lock(&ci->i_ceph_lock); issued = __ceph_caps_issued(ci, NULL); - spin_unlock(&ci->vfs_inode.i_lock); + spin_unlock(&ci->i_ceph_lock); return issued; } @@ -518,9 +520,9 @@ static inline int ceph_caps_issued_mask(struct ceph_inode_info *ci, int mask, int touch) { int r; - spin_lock(&ci->vfs_inode.i_lock); + spin_lock(&ci->i_ceph_lock); r = __ceph_caps_issued_mask(ci, mask, touch); - spin_unlock(&ci->vfs_inode.i_lock); + spin_unlock(&ci->i_ceph_lock); return r; } @@ -743,10 +745,9 @@ extern int ceph_add_cap(struct inode *inode, extern void __ceph_remove_cap(struct ceph_cap *cap); static inline void ceph_remove_cap(struct ceph_cap *cap) { - struct inode *inode = &cap->ci->vfs_inode; - spin_lock(&inode->i_lock); + spin_lock(&cap->ci->i_ceph_lock); __ceph_remove_cap(cap); - spin_unlock(&inode->i_lock); + spin_unlock(&cap->ci->i_ceph_lock); } extern void ceph_put_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap); diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c index 96c6739a028..a5e36e4488a 100644 --- a/fs/ceph/xattr.c +++ b/fs/ceph/xattr.c @@ -343,8 +343,8 @@ void __ceph_destroy_xattrs(struct ceph_inode_info *ci) } static int __build_xattrs(struct inode *inode) - __releases(inode->i_lock) - __acquires(inode->i_lock) + __releases(ci->i_ceph_lock) + __acquires(ci->i_ceph_lock) { u32 namelen; u32 numattr = 0; @@ -372,7 +372,7 @@ start: end = p + ci->i_xattrs.blob->vec.iov_len; ceph_decode_32_safe(&p, end, numattr, bad); xattr_version = ci->i_xattrs.version; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); xattrs = kcalloc(numattr, sizeof(struct ceph_xattr *), GFP_NOFS); @@ -387,7 +387,7 @@ start: goto bad_lock; } - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (ci->i_xattrs.version != xattr_version) { /* lost a race, retry */ for (i = 0; i < numattr; i++) @@ -418,7 +418,7 @@ start: return err; bad_lock: - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); bad: if (xattrs) { for (i = 0; i < numattr; i++) @@ -512,7 +512,7 @@ ssize_t ceph_getxattr(struct dentry *dentry, const char *name, void *value, if (vxattrs) vxattr = ceph_match_vxattr(vxattrs, name); - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); dout("getxattr %p ver=%lld index_ver=%lld\n", inode, ci->i_xattrs.version, ci->i_xattrs.index_version); @@ -520,14 +520,14 @@ ssize_t ceph_getxattr(struct dentry *dentry, const char *name, void *value, (ci->i_xattrs.index_version >= ci->i_xattrs.version)) { goto get_xattr; } else { - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); /* get xattrs from mds (if we don't already have them) */ err = ceph_do_getattr(inode, CEPH_STAT_CAP_XATTR); if (err) return err; } - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (vxattr && vxattr->readonly) { err = vxattr->getxattr_cb(ci, value, size); @@ -558,7 +558,7 @@ get_xattr: memcpy(value, xattr->val, xattr->val_len); out: - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return err; } @@ -573,7 +573,7 @@ ssize_t ceph_listxattr(struct dentry *dentry, char *names, size_t size) u32 len; int i; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); dout("listxattr %p ver=%lld index_ver=%lld\n", inode, ci->i_xattrs.version, ci->i_xattrs.index_version); @@ -581,13 +581,13 @@ ssize_t ceph_listxattr(struct dentry *dentry, char *names, size_t size) (ci->i_xattrs.index_version >= ci->i_xattrs.version)) { goto list_xattr; } else { - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); err = ceph_do_getattr(inode, CEPH_STAT_CAP_XATTR); if (err) return err; } - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); err = __build_xattrs(inode); if (err < 0) @@ -619,7 +619,7 @@ list_xattr: } out: - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); return err; } @@ -739,7 +739,7 @@ int ceph_setxattr(struct dentry *dentry, const char *name, if (!xattr) goto out; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); retry: issued = __ceph_caps_issued(ci, NULL); if (!(issued & CEPH_CAP_XATTR_EXCL)) @@ -752,12 +752,12 @@ retry: required_blob_size > ci->i_xattrs.prealloc_blob->alloc_len) { struct ceph_buffer *blob = NULL; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); dout(" preaallocating new blob size=%d\n", required_blob_size); blob = ceph_buffer_new(required_blob_size, GFP_NOFS); if (!blob) goto out; - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); if (ci->i_xattrs.prealloc_blob) ceph_buffer_put(ci->i_xattrs.prealloc_blob); ci->i_xattrs.prealloc_blob = blob; @@ -770,13 +770,13 @@ retry: dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL); ci->i_xattrs.dirty = true; inode->i_ctime = CURRENT_TIME; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (dirty) __mark_inode_dirty(inode, dirty); return err; do_sync: - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); err = ceph_sync_setxattr(dentry, name, value, size, flags); out: kfree(newname); @@ -833,7 +833,7 @@ int ceph_removexattr(struct dentry *dentry, const char *name) return -EOPNOTSUPP; } - spin_lock(&inode->i_lock); + spin_lock(&ci->i_ceph_lock); __build_xattrs(inode); issued = __ceph_caps_issued(ci, NULL); dout("removexattr %p issued %s\n", inode, ceph_cap_string(issued)); @@ -846,12 +846,12 @@ int ceph_removexattr(struct dentry *dentry, const char *name) ci->i_xattrs.dirty = true; inode->i_ctime = CURRENT_TIME; - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); if (dirty) __mark_inode_dirty(inode, dirty); return err; do_sync: - spin_unlock(&inode->i_lock); + spin_unlock(&ci->i_ceph_lock); err = ceph_send_removexattr(dentry, name); return err; } -- cgit v1.2.3 From 28d8ea2d568534026ccda3e8936f5ea1e04a86a1 Mon Sep 17 00:00:00 2001 From: Andy Fleming Date: Fri, 11 Nov 2011 05:10:39 +0000 Subject: fsl_pq_mdio: Clean up tbi address configuration The code for setting the address of the internal TBI PHY was convoluted enough without a maze of ifdefs. Clean it up a bit so we allow the logic to fail down to -ENODEV at the end of the if/else ladder, rather than using ifdefs to repeat the same failure code over and over. Also, remove the support for the auto-configuration. I'm not aware of anyone using it, and it ends up using the bus mutex before it's been initialized. Signed-off-by: Andy Fleming Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/fsl_pq_mdio.c | 53 +++++----------------------- 1 file changed, 8 insertions(+), 45 deletions(-) diff --git a/drivers/net/ethernet/freescale/fsl_pq_mdio.c b/drivers/net/ethernet/freescale/fsl_pq_mdio.c index 52f4e8ad48e..4d9f84b8ab9 100644 --- a/drivers/net/ethernet/freescale/fsl_pq_mdio.c +++ b/drivers/net/ethernet/freescale/fsl_pq_mdio.c @@ -183,28 +183,10 @@ void fsl_pq_mdio_bus_name(char *name, struct device_node *np) } EXPORT_SYMBOL_GPL(fsl_pq_mdio_bus_name); -/* Scan the bus in reverse, looking for an empty spot */ -static int fsl_pq_mdio_find_free(struct mii_bus *new_bus) -{ - int i; - - for (i = PHY_MAX_ADDR; i > 0; i--) { - u32 phy_id; - - if (get_phy_id(new_bus, i, &phy_id)) - return -1; - - if (phy_id == 0xffffffff) - break; - } - - return i; -} - -#if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE) static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs, struct device_node *np) { +#if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE) struct gfar __iomem *enet_regs; /* @@ -220,15 +202,15 @@ static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs, struct devi } else if (of_device_is_compatible(np, "fsl,etsec2-mdio") || of_device_is_compatible(np, "fsl,etsec2-tbi")) { return of_iomap(np, 1); - } else - return NULL; -} + } #endif + return NULL; +} -#if defined(CONFIG_UCC_GETH) || defined(CONFIG_UCC_GETH_MODULE) static int get_ucc_id_for_range(u64 start, u64 end, u32 *ucc_id) { +#if defined(CONFIG_UCC_GETH) || defined(CONFIG_UCC_GETH_MODULE) struct device_node *np = NULL; int err = 0; @@ -261,9 +243,10 @@ static int get_ucc_id_for_range(u64 start, u64 end, u32 *ucc_id) return err; else return -EINVAL; -} +#else + return -ENODEV; #endif - +} static int fsl_pq_mdio_probe(struct platform_device *ofdev) { @@ -339,19 +322,13 @@ static int fsl_pq_mdio_probe(struct platform_device *ofdev) of_device_is_compatible(np, "fsl,etsec2-mdio") || of_device_is_compatible(np, "fsl,etsec2-tbi") || of_device_is_compatible(np, "gianfar")) { -#if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE) tbipa = get_gfar_tbipa(regs, np); if (!tbipa) { err = -EINVAL; goto err_free_irqs; } -#else - err = -ENODEV; - goto err_free_irqs; -#endif } else if (of_device_is_compatible(np, "fsl,ucc-mdio") || of_device_is_compatible(np, "ucc_geth_phy")) { -#if defined(CONFIG_UCC_GETH) || defined(CONFIG_UCC_GETH_MODULE) u32 id; static u32 mii_mng_master; @@ -364,10 +341,6 @@ static int fsl_pq_mdio_probe(struct platform_device *ofdev) mii_mng_master = id; ucc_set_qe_mux_mii_mng(id - 1); } -#else - err = -ENODEV; - goto err_free_irqs; -#endif } else { err = -ENODEV; goto err_free_irqs; @@ -386,16 +359,6 @@ static int fsl_pq_mdio_probe(struct platform_device *ofdev) } if (tbiaddr == -1) { - out_be32(tbipa, 0); - - tbiaddr = fsl_pq_mdio_find_free(new_bus); - } - - /* - * We define TBIPA at 0 to be illegal, opting to fail for boards that - * have PHYs at 1-31, rather than change tbipa and rescan. - */ - if (tbiaddr == 0) { err = -EBUSY; goto err_free_irqs; -- cgit v1.2.3 From 15062e6a8524f5977f2cbdf6e3eb2f144262f74e Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 7 Dec 2011 09:02:21 +0100 Subject: mac80211: fix another race in aggregation start Emmanuel noticed that when mac80211 stops the queues for aggregation that can leave a packet pending. This packet will be given to the driver after the AMPDU callback, but as a non-aggregated packet which messes up the sequence number etc. I also noticed by looking at the code that if packets are being processed while we clear the WANT_START bit, they might see it cleared already and queue up on tid_tx->pending. If the driver then rejects the new aggregation session we leak the packet. Fix both of these issues by changing this code to not stop the queues at all. Instead, let packets queue up on the tid_tx->pending queue instead of letting them get to the driver, and add code to recover properly in case the driver rejects the session. (The patch looks large because it has to move two functions to before their new use.) Cc: stable@vger.kernel.org Reported-by: Emmanuel Grumbach Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/agg-tx.c | 86 ++++++++++++++++++++++++--------------------------- 1 file changed, 41 insertions(+), 45 deletions(-) diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 331472ce038..d448f7a3dbc 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -302,6 +302,38 @@ ieee80211_wake_queue_agg(struct ieee80211_local *local, int tid) __release(agg_queue); } +/* + * splice packets from the STA's pending to the local pending, + * requires a call to ieee80211_agg_splice_finish later + */ +static void __acquires(agg_queue) +ieee80211_agg_splice_packets(struct ieee80211_local *local, + struct tid_ampdu_tx *tid_tx, u16 tid) +{ + int queue = ieee80211_ac_from_tid(tid); + unsigned long flags; + + ieee80211_stop_queue_agg(local, tid); + + if (WARN(!tid_tx, "TID %d gone but expected when splicing aggregates" + " from the pending queue\n", tid)) + return; + + if (!skb_queue_empty(&tid_tx->pending)) { + spin_lock_irqsave(&local->queue_stop_reason_lock, flags); + /* copy over remaining packets */ + skb_queue_splice_tail_init(&tid_tx->pending, + &local->pending[queue]); + spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); + } +} + +static void __releases(agg_queue) +ieee80211_agg_splice_finish(struct ieee80211_local *local, u16 tid) +{ + ieee80211_wake_queue_agg(local, tid); +} + void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) { struct tid_ampdu_tx *tid_tx; @@ -313,19 +345,17 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) tid_tx = rcu_dereference_protected_tid_tx(sta, tid); /* - * While we're asking the driver about the aggregation, - * stop the AC queue so that we don't have to worry - * about frames that came in while we were doing that, - * which would require us to put them to the AC pending - * afterwards which just makes the code more complex. + * Start queuing up packets for this aggregation session. + * We're going to release them once the driver is OK with + * that. */ - ieee80211_stop_queue_agg(local, tid); - clear_bit(HT_AGG_STATE_WANT_START, &tid_tx->state); /* - * make sure no packets are being processed to get - * valid starting sequence number + * Make sure no packets are being processed. This ensures that + * we have a valid starting sequence number and that in-flight + * packets have been flushed out and no packets for this TID + * will go into the driver during the ampdu_action call. */ synchronize_net(); @@ -339,17 +369,15 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) " tid %d\n", tid); #endif spin_lock_bh(&sta->lock); + ieee80211_agg_splice_packets(local, tid_tx, tid); ieee80211_assign_tid_tx(sta, tid, NULL); + ieee80211_agg_splice_finish(local, tid); spin_unlock_bh(&sta->lock); - ieee80211_wake_queue_agg(local, tid); kfree_rcu(tid_tx, rcu_head); return; } - /* we can take packets again now */ - ieee80211_wake_queue_agg(local, tid); - /* activate the timer for the recipient's addBA response */ mod_timer(&tid_tx->addba_resp_timer, jiffies + ADDBA_RESP_INTERVAL); #ifdef CONFIG_MAC80211_HT_DEBUG @@ -465,38 +493,6 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, } EXPORT_SYMBOL(ieee80211_start_tx_ba_session); -/* - * splice packets from the STA's pending to the local pending, - * requires a call to ieee80211_agg_splice_finish later - */ -static void __acquires(agg_queue) -ieee80211_agg_splice_packets(struct ieee80211_local *local, - struct tid_ampdu_tx *tid_tx, u16 tid) -{ - int queue = ieee80211_ac_from_tid(tid); - unsigned long flags; - - ieee80211_stop_queue_agg(local, tid); - - if (WARN(!tid_tx, "TID %d gone but expected when splicing aggregates" - " from the pending queue\n", tid)) - return; - - if (!skb_queue_empty(&tid_tx->pending)) { - spin_lock_irqsave(&local->queue_stop_reason_lock, flags); - /* copy over remaining packets */ - skb_queue_splice_tail_init(&tid_tx->pending, - &local->pending[queue]); - spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); - } -} - -static void __releases(agg_queue) -ieee80211_agg_splice_finish(struct ieee80211_local *local, u16 tid) -{ - ieee80211_wake_queue_agg(local, tid); -} - static void ieee80211_agg_tx_operational(struct ieee80211_local *local, struct sta_info *sta, u16 tid) { -- cgit v1.2.3 From 91ddff8a3b9cc7ac2252aca138220939cf6cc2cf Mon Sep 17 00:00:00 2001 From: Philipp Dreimann Date: Wed, 7 Dec 2011 13:43:31 -0600 Subject: rtl8192{ce,cu,de,se}: avoid problems because of possible ERFOFF -> ERFSLEEP transition In drivers rtl8192ce, rtl8192cu, rtl8192se, and rtl8192de, break statements would allow ppsc->rfpwr_state to be changed to ERFSLEEP even though the device is actually in ERFOFF. Signed-off-by: Philipp Dreimann Signed-off-by: Larry Finger Cc: Stable Cc: Chaoming Li Signed-off-by: John W. Linville --- drivers/net/wireless/rtlwifi/rtl8192ce/phy.c | 2 +- drivers/net/wireless/rtlwifi/rtl8192cu/phy.c | 2 +- drivers/net/wireless/rtlwifi/rtl8192de/phy.c | 2 +- drivers/net/wireless/rtlwifi/rtl8192se/phy.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c index 592a10ac592..3b585aadabf 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c +++ b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c @@ -569,7 +569,7 @@ static bool _rtl92ce_phy_set_rf_power_state(struct ieee80211_hw *hw, } case ERFSLEEP:{ if (ppsc->rfpwr_state == ERFOFF) - break; + return false; for (queue_id = 0, i = 0; queue_id < RTL_PCI_MAX_TX_QUEUE_COUNT;) { ring = &pcipriv->dev.tx_ring[queue_id]; diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/phy.c b/drivers/net/wireless/rtlwifi/rtl8192cu/phy.c index 72852900df8..e49cf2244c7 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/phy.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/phy.c @@ -548,7 +548,7 @@ static bool _rtl92cu_phy_set_rf_power_state(struct ieee80211_hw *hw, break; case ERFSLEEP: if (ppsc->rfpwr_state == ERFOFF) - break; + return false; for (queue_id = 0, i = 0; queue_id < RTL_PCI_MAX_TX_QUEUE_COUNT;) { ring = &pcipriv->dev.tx_ring[queue_id]; diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c index 3ac7af1c550..0883349e1c8 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c @@ -3374,7 +3374,7 @@ bool rtl92d_phy_set_rf_power_state(struct ieee80211_hw *hw, break; case ERFSLEEP: if (ppsc->rfpwr_state == ERFOFF) - break; + return false; for (queue_id = 0, i = 0; queue_id < RTL_PCI_MAX_TX_QUEUE_COUNT;) { diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/phy.c b/drivers/net/wireless/rtlwifi/rtl8192se/phy.c index f27171af979..f10ac1ad908 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192se/phy.c +++ b/drivers/net/wireless/rtlwifi/rtl8192se/phy.c @@ -602,7 +602,7 @@ bool rtl92s_phy_set_rf_power_state(struct ieee80211_hw *hw, } case ERFSLEEP: if (ppsc->rfpwr_state == ERFOFF) - break; + return false; for (queue_id = 0, i = 0; queue_id < RTL_PCI_MAX_TX_QUEUE_COUNT;) { -- cgit v1.2.3 From d7a4c45ec24b6c6773ff302c3c9cb5ed46c8e211 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Thu, 8 Dec 2011 10:07:53 +0900 Subject: ARM: SAMSUNG: remove duplicated header include This patch removes duplicated slab header for pwm backlight. arch/arm/plat-samsung/dev-backlight.c: slab.h is included more than once. Signed-off-by: Jingoo Han Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/dev-backlight.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm/plat-samsung/dev-backlight.c b/arch/arm/plat-samsung/dev-backlight.c index e657305644c..a976c023b28 100644 --- a/arch/arm/plat-samsung/dev-backlight.c +++ b/arch/arm/plat-samsung/dev-backlight.c @@ -15,7 +15,6 @@ #include #include #include -#include #include #include -- cgit v1.2.3 From de611dd4078499d5aa5ae9655652687ae630585f Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Thu, 8 Dec 2011 10:08:38 +0900 Subject: ARM: S5PV210: Set 1000ns as PWM backlight period on SMDKV210 The SMDK board uses LT3591 as backlight LED driver of LTE480WV LCD. According to the LT3591 datasheet, the switching frequency should be 1MHz. So, PWM period is calculated by following formula: PWM period = 1/switching frequency = 1/1MHz = 1000ns Thus, the PWM backlight period should be 1000ns. Signed-off-by: Jingoo Han Signed-off-by: Kukjin Kim --- arch/arm/mach-s5pv210/mach-smdkv210.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-s5pv210/mach-smdkv210.c b/arch/arm/mach-s5pv210/mach-smdkv210.c index a9106c39239..8662ef6e568 100644 --- a/arch/arm/mach-s5pv210/mach-smdkv210.c +++ b/arch/arm/mach-s5pv210/mach-smdkv210.c @@ -273,6 +273,7 @@ static struct samsung_bl_gpio_info smdkv210_bl_gpio_info = { static struct platform_pwm_backlight_data smdkv210_bl_data = { .pwm_id = 3, + .pwm_period_ns = 1000, }; static void __init smdkv210_map_io(void) -- cgit v1.2.3 From e248cd5d5f1c28c82781d4122dddd1b7c3d7b46f Mon Sep 17 00:00:00 2001 From: Amit Daniel Kachhap Date: Thu, 8 Dec 2011 10:07:08 +0900 Subject: ARM: EXYNOS: Fix for stall in case of cpu hotplug or sleep This patch adds remove_irq in place of disable_irq which is correct equivalent function for setup_irq used in exynos4_mct_tick_init. Signed-off-by: Amit Daniel Kachhap Tested-by: Inderpal Singh Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/mct.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-exynos/mct.c b/arch/arm/mach-exynos/mct.c index 97343df8f13..959f2514796 100644 --- a/arch/arm/mach-exynos/mct.c +++ b/arch/arm/mach-exynos/mct.c @@ -428,9 +428,13 @@ int __cpuinit local_timer_setup(struct clock_event_device *evt) void local_timer_stop(struct clock_event_device *evt) { + unsigned int cpu = smp_processor_id(); evt->set_mode(CLOCK_EVT_MODE_UNUSED, evt); if (mct_int_type == MCT_INT_SPI) - disable_irq(evt->irq); + if (cpu == 0) + remove_irq(evt->irq, &mct_tick0_event_irq); + else + remove_irq(evt->irq, &mct_tick1_event_irq); else disable_percpu_irq(IRQ_MCT_LOCALTIMER); } -- cgit v1.2.3 From 991a6c7d94a9be53f0302a1ada06e66a6ebf51e8 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Thu, 8 Dec 2011 10:04:49 +0900 Subject: ARM: EXYNOS: Fix build error without CONFIG_LOCAL_TIMERS arch/arm/mach-exynos/mct.c: In function 'exynos4_timer_resources': arch/arm/mach-exynos/mct.c:450: error: 'exynos4_mct_tick_isr' undeclared (first use in this function) arch/arm/mach-exynos/mct.c:450: error: (Each undeclared identifier is reported only once arch/arm/mach-exynos/mct.c:450: error: for each function it appears in.) make[1]: *** [arch/arm/mach-exynos/mct.o] Error 1 Reported-by: Kyungmin Park Acked-by: Changhwan Youn Signed-off-by: Kukjin Kim Cc: Marc Zyngier --- arch/arm/mach-exynos/mct.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-exynos/mct.c b/arch/arm/mach-exynos/mct.c index 959f2514796..85b5527d091 100644 --- a/arch/arm/mach-exynos/mct.c +++ b/arch/arm/mach-exynos/mct.c @@ -44,8 +44,6 @@ struct mct_clock_event_device { char name[10]; }; -static DEFINE_PER_CPU(struct mct_clock_event_device, percpu_mct_tick); - static void exynos4_mct_write(unsigned int value, void *addr) { void __iomem *stat_addr; @@ -264,6 +262,9 @@ static void exynos4_clockevent_init(void) } #ifdef CONFIG_LOCAL_TIMERS + +static DEFINE_PER_CPU(struct mct_clock_event_device, percpu_mct_tick); + /* Clock event handling */ static void exynos4_mct_tick_stop(struct mct_clock_event_device *mevt) { @@ -447,6 +448,7 @@ static void __init exynos4_timer_resources(void) clk_rate = clk_get_rate(mct_clk); +#ifdef CONFIG_LOCAL_TIMERS if (mct_int_type == MCT_INT_PPI) { int err; @@ -456,6 +458,7 @@ static void __init exynos4_timer_resources(void) WARN(err, "MCT: can't request IRQ %d (%d)\n", IRQ_MCT_LOCALTIMER, err); } +#endif /* CONFIG_LOCAL_TIMERS */ } static void __init exynos4_timer_init(void) -- cgit v1.2.3 From aed21ad28b1323b2807faea019e5ac388a7bc837 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Wed, 23 Nov 2011 11:44:41 -0600 Subject: writeback: comment on the bdi dirty threshold We do "floating proportions" to let active devices to grow its target share of dirty pages and stalled/inactive devices to decrease its target share over time. It works well except in the case of "an inactive disk suddenly goes busy", where the initial target share may be too small. To mitigate this, bdi_position_ratio() has the below line to raise a small bdi_thresh when it's safe to do so, so that the disk be feed with enough dirty pages for efficient IO and in turn fast rampup of bdi_thresh: bdi_thresh = max(bdi_thresh, (limit - dirty) / 8); balance_dirty_pages() normally does negative feedback control which adjusts ratelimit to balance the bdi dirty pages around the target. In some extreme cases when that is not enough, it will have to block the tasks completely until the bdi dirty pages drop below bdi_thresh. Acked-by: Jan Kara Acked-by: Peter Zijlstra Signed-off-by: Wu Fengguang --- mm/page-writeback.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 71252486bc6..155efca4c12 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -411,8 +411,13 @@ void global_dirty_limits(unsigned long *pbackground, unsigned long *pdirty) * * Returns @bdi's dirty limit in pages. The term "dirty" in the context of * dirty balancing includes all PG_dirty, PG_writeback and NFS unstable pages. - * And the "limit" in the name is not seriously taken as hard limit in - * balance_dirty_pages(). + * + * Note that balance_dirty_pages() will only seriously take it as a hard limit + * when sleeping max_pause per page is not enough to keep the dirty pages under + * control. For example, when the device is completely stalled due to some error + * conditions, or when there are 1000 dd tasks writing to a slow 10MB/s USB key. + * In the other normal situations, it acts more gently by throttling the tasks + * more (rather than completely block them) when the bdi dirty pages go high. * * It allocates high/low dirty limits to fast/slow devices, in order to prevent * - starving fast devices @@ -594,6 +599,13 @@ static unsigned long bdi_position_ratio(struct backing_dev_info *bdi, */ if (unlikely(bdi_thresh > thresh)) bdi_thresh = thresh; + /* + * It's very possible that bdi_thresh is close to 0 not because the + * device is slow, but that it has remained inactive for long time. + * Honour such devices a reasonable good (hopefully IO efficient) + * threshold, so that the occasional writes won't be blocked and active + * writes can rampup the threshold quickly. + */ bdi_thresh = max(bdi_thresh, (limit - dirty) / 8); /* * scale global setpoint to bdi's: -- cgit v1.2.3 From c5c6343c4d75f9d3226e05a72e7861e967fc8099 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Fri, 2 Dec 2011 10:21:33 -0600 Subject: writeback: permit through good bdi even when global dirty exceeded On a system with 1 local mount and 1 NFS mount, if the NFS server becomes not responding when dd to the NFS mount, the NFS dirty pages may exceed the global dirty limit and _every_ task involving writing will be blocked. The whole system appears unresponsive. The workaround is to permit through the bdi's that only has a small number of dirty pages. The number chosen (bdi_stat_error pages) is not enough to enable the local disk to run in optimal throughput, however is enough to make the system responsive on a broken NFS mount. The user can then kill the dirtiers on the NFS mount and increase the global dirty limit to bring up the local disk's throughput. It risks allowing dirty pages to grow much larger than the global dirty limit when there are 1000+ mounts, however that's very unlikely to happen, especially in low memory profiles. Signed-off-by: Wu Fengguang --- mm/page-writeback.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 155efca4c12..17403e3a7c8 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -1148,6 +1148,19 @@ pause: if (task_ratelimit) break; + /* + * In the case of an unresponding NFS server and the NFS dirty + * pages exceeds dirty_thresh, give the other good bdi's a pipe + * to go through, so that tasks on them still remain responsive. + * + * In theory 1 page is enough to keep the comsumer-producer + * pipe going: the flusher cleans 1 page => the task dirties 1 + * more page. However bdi_dirty has accounting errors. So use + * the larger and more IO friendly bdi_stat_error. + */ + if (bdi_dirty <= bdi_stat_error(bdi)) + break; + if (fatal_signal_pending(current)) break; } -- cgit v1.2.3 From 82e230a07de3812a5e87a27979f033dad59172e3 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Fri, 2 Dec 2011 18:21:51 -0600 Subject: writeback: set max_pause to lowest value on zero bdi_dirty Some trace shows lots of bdi_dirty=0 lines where it's actually some small value if w/o the accounting errors in the per-cpu bdi stats. In this case the max pause time should really be set to the smallest (non-zero) value to avoid IO queue underrun and improve throughput. Signed-off-by: Wu Fengguang --- mm/page-writeback.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 17403e3a7c8..50f08241f98 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -989,8 +989,7 @@ static unsigned long bdi_max_pause(struct backing_dev_info *bdi, * * 8 serves as the safety ratio. */ - if (bdi_dirty) - t = min(t, bdi_dirty * HZ / (8 * bw + 1)); + t = min(t, bdi_dirty * HZ / (8 * bw + 1)); /* * The pause time will be settled within range (max_pause/4, max_pause). -- cgit v1.2.3 From 053bf34f5aff499d7b595c500bbab5cbab3636e7 Mon Sep 17 00:00:00 2001 From: Per Forlin Date: Mon, 7 Nov 2011 21:55:11 +0530 Subject: mmc: omap_hsmmc: DMA unmap only once in case of MMC error Reported by Russell King: mmcblk0: error -84 transferring data, sector 149201, nr 64, cmd response 0x900, card status 0xb00 mmcblk0: retrying using single block read WARNING: at lib/dma-debug.c:811 check_unmap omap_hsmmc omap_hsmmc.0: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x0000000080933000] [size=20480 bytes] In case of an error dma_unmap() is issued in omap_hsmmc_dma_cleanup() and then again in omap_hsmmc_post_req(). Resolve this by clearing the host_cookie to indicate there is no DMA mapped memory to unmap. Signed-off-by: Per Forlin Tested-by: Balaji T K Tested-by: Russell King Signed-off-by: Chris Ball --- drivers/mmc/host/omap_hsmmc.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 101cd31c822..d5fe43d53c5 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1010,6 +1010,7 @@ static void omap_hsmmc_dma_cleanup(struct omap_hsmmc_host *host, int errno) host->data->sg_len, omap_hsmmc_get_dma_dir(host, host->data)); omap_free_dma(dma_ch); + host->data->host_cookie = 0; } host->data = NULL; } @@ -1575,8 +1576,10 @@ static void omap_hsmmc_post_req(struct mmc_host *mmc, struct mmc_request *mrq, struct mmc_data *data = mrq->data; if (host->use_dma) { - dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len, - omap_hsmmc_get_dma_dir(host, data)); + if (data->host_cookie) + dma_unmap_sg(mmc_dev(host->mmc), data->sg, + data->sg_len, + omap_hsmmc_get_dma_dir(host, data)); data->host_cookie = 0; } } -- cgit v1.2.3 From 329456d1ffb416c220813725b7363cda9975c9aa Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Mon, 5 Dec 2011 23:19:51 +0100 Subject: ssb: fix init regression with SoCs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes a Data bus error on some SoCs. The first fix for this problem did not solve it on all devices. commit 6ae8ec27868bfdbb815287bee8146acbefaee867 Author: Rafał Miłecki Date: Tue Jul 5 17:25:32 2011 +0200 ssb: fix init regression of hostmode PCI core In ssb_pcicore_fix_sprom_core_index() the sprom on the PCI core is accessed, but the sprom only exists when the ssb bus is connected over a PCI bus to the rest of the system and not when the SSB Bus is the main system bus. SoCs sometimes have a PCI host controller and there this code will not be executed, but there are some old SoCs with an PCI controller in client mode around and ssb_pcicore_fix_sprom_core_index() should not be called on these devices too. The PCI controller on these devices are unused, but without this fix it results in an Data bus error when it gets initialized. Cc: Michael Buesch Cc: Rafał Miłecki Signed-off-by: Hauke Mehrtens Cc: stable@vger.kernel.org Signed-off-by: John W. Linville --- drivers/ssb/driver_pcicore.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/ssb/driver_pcicore.c b/drivers/ssb/driver_pcicore.c index e6ac3177fbb..32c535f5ce3 100644 --- a/drivers/ssb/driver_pcicore.c +++ b/drivers/ssb/driver_pcicore.c @@ -516,10 +516,14 @@ static void ssb_pcicore_pcie_setup_workarounds(struct ssb_pcicore *pc) static void __devinit ssb_pcicore_init_clientmode(struct ssb_pcicore *pc) { - ssb_pcicore_fix_sprom_core_index(pc); + struct ssb_device *pdev = pc->dev; + struct ssb_bus *bus = pdev->bus; + + if (bus->bustype == SSB_BUSTYPE_PCI) + ssb_pcicore_fix_sprom_core_index(pc); /* Disable PCI interrupts. */ - ssb_write32(pc->dev, SSB_INTVEC, 0); + ssb_write32(pdev, SSB_INTVEC, 0); /* Additional PCIe always once-executed workarounds */ if (pc->dev->id.coreid == SSB_DEV_PCIE) { -- cgit v1.2.3 From 905ad269c55fc62bee3da29f7b1d1efeba8aa1e1 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 8 Dec 2011 23:20:45 -0500 Subject: procfs: fix a vfsmount longterm reference leak kern_mount() doesn't pair with plain mntput()... Signed-off-by: Al Viro --- fs/proc/root.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/fs/proc/root.c b/fs/proc/root.c index 9a8a2b77b87..03102d97818 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -91,20 +91,18 @@ static struct file_system_type proc_fs_type = { void __init proc_root_init(void) { - struct vfsmount *mnt; int err; proc_init_inodecache(); err = register_filesystem(&proc_fs_type); if (err) return; - mnt = kern_mount_data(&proc_fs_type, &init_pid_ns); - if (IS_ERR(mnt)) { + err = pid_ns_prepare_proc(&init_pid_ns); + if (err) { unregister_filesystem(&proc_fs_type); return; } - init_pid_ns.proc_mnt = mnt; proc_symlink("mounts", NULL, "self/mounts"); proc_net_init(); @@ -209,5 +207,5 @@ int pid_ns_prepare_proc(struct pid_namespace *ns) void pid_ns_release_proc(struct pid_namespace *ns) { - mntput(ns->proc_mnt); + kern_unmount(ns->proc_mnt); } -- cgit v1.2.3 From 6f686574cccc2ef66fb38e41f19cedd81e7b4504 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 9 Dec 2011 00:38:50 -0500 Subject: ... and the same kind of leak for mqueue Signed-off-by: Al Viro --- ipc/mqueue.c | 8 +++----- ipc/msgutil.c | 5 ----- 2 files changed, 3 insertions(+), 10 deletions(-) diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 2e0ecfcc881..5b4293d9819 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -1269,7 +1269,7 @@ void mq_clear_sbinfo(struct ipc_namespace *ns) void mq_put_mnt(struct ipc_namespace *ns) { - mntput(ns->mq_mnt); + kern_unmount(ns->mq_mnt); } static int __init init_mqueue_fs(void) @@ -1291,11 +1291,9 @@ static int __init init_mqueue_fs(void) spin_lock_init(&mq_lock); - init_ipc_ns.mq_mnt = kern_mount_data(&mqueue_fs_type, &init_ipc_ns); - if (IS_ERR(init_ipc_ns.mq_mnt)) { - error = PTR_ERR(init_ipc_ns.mq_mnt); + error = mq_init_ns(&init_ipc_ns); + if (error) goto out_filesystem; - } return 0; diff --git a/ipc/msgutil.c b/ipc/msgutil.c index 8b5ce5d3f3e..5652101cdac 100644 --- a/ipc/msgutil.c +++ b/ipc/msgutil.c @@ -27,11 +27,6 @@ DEFINE_SPINLOCK(mq_lock); */ struct ipc_namespace init_ipc_ns = { .count = ATOMIC_INIT(1), -#ifdef CONFIG_POSIX_MQUEUE - .mq_queues_max = DFLT_QUEUESMAX, - .mq_msg_max = DFLT_MSGMAX, - .mq_msgsize_max = DFLT_MSGSIZEMAX, -#endif .user_ns = &init_user_ns, }; -- cgit v1.2.3 From c0d96aed8c6dd925afe9ea35491a0cd458642a86 Mon Sep 17 00:00:00 2001 From: Jason Chen Date: Wed, 30 Nov 2011 11:34:27 +0800 Subject: MXC PWM: should active during DOZE/WAIT/DBG mode Signed-off-by: Jason Chen Signed-off-by: Sascha Hauer Cc: stable@kernel.org --- arch/arm/plat-mxc/pwm.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/arm/plat-mxc/pwm.c b/arch/arm/plat-mxc/pwm.c index 42d74ea5908..845de59f07e 100644 --- a/arch/arm/plat-mxc/pwm.c +++ b/arch/arm/plat-mxc/pwm.c @@ -32,6 +32,9 @@ #define MX3_PWMSAR 0x0C /* PWM Sample Register */ #define MX3_PWMPR 0x10 /* PWM Period Register */ #define MX3_PWMCR_PRESCALER(x) (((x - 1) & 0xFFF) << 4) +#define MX3_PWMCR_DOZEEN (1 << 24) +#define MX3_PWMCR_WAITEN (1 << 23) +#define MX3_PWMCR_DBGEN (1 << 22) #define MX3_PWMCR_CLKSRC_IPG_HIGH (2 << 16) #define MX3_PWMCR_CLKSRC_IPG (1 << 16) #define MX3_PWMCR_EN (1 << 0) @@ -77,7 +80,9 @@ int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns) writel(duty_cycles, pwm->mmio_base + MX3_PWMSAR); writel(period_cycles, pwm->mmio_base + MX3_PWMPR); - cr = MX3_PWMCR_PRESCALER(prescale) | MX3_PWMCR_EN; + cr = MX3_PWMCR_PRESCALER(prescale) | + MX3_PWMCR_DOZEEN | MX3_PWMCR_WAITEN | + MX3_PWMCR_DBGEN | MX3_PWMCR_EN; if (cpu_is_mx25()) cr |= MX3_PWMCR_CLKSRC_IPG; -- cgit v1.2.3 From 16b3647d333a18141fc9d172e89a142250be0c57 Mon Sep 17 00:00:00 2001 From: Dong Aisheng Date: Sat, 12 Nov 2011 00:09:06 +0800 Subject: ARM: mx5: add __initconst for fec pdata MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Dong Aisheng Acked-by: Uwe Kleine-König Signed-off-by: Sascha Hauer --- arch/arm/mach-mx5/board-mx53_evk.c | 2 +- arch/arm/mach-mx5/board-mx53_loco.c | 2 +- arch/arm/mach-mx5/board-mx53_smd.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-mx5/board-mx53_evk.c b/arch/arm/mach-mx5/board-mx53_evk.c index 6bea31ab8f8..64bbfcea6f3 100644 --- a/arch/arm/mach-mx5/board-mx53_evk.c +++ b/arch/arm/mach-mx5/board-mx53_evk.c @@ -106,7 +106,7 @@ static inline void mx53_evk_fec_reset(void) gpio_set_value(MX53_EVK_FEC_PHY_RST, 1); } -static struct fec_platform_data mx53_evk_fec_pdata = { +static const struct fec_platform_data mx53_evk_fec_pdata __initconst = { .phy = PHY_INTERFACE_MODE_RMII, }; diff --git a/arch/arm/mach-mx5/board-mx53_loco.c b/arch/arm/mach-mx5/board-mx53_loco.c index 7678f7734db..237bdecd933 100644 --- a/arch/arm/mach-mx5/board-mx53_loco.c +++ b/arch/arm/mach-mx5/board-mx53_loco.c @@ -242,7 +242,7 @@ static inline void mx53_loco_fec_reset(void) gpio_set_value(LOCO_FEC_PHY_RST, 1); } -static struct fec_platform_data mx53_loco_fec_data = { +static const struct fec_platform_data mx53_loco_fec_data __initconst = { .phy = PHY_INTERFACE_MODE_RMII, }; diff --git a/arch/arm/mach-mx5/board-mx53_smd.c b/arch/arm/mach-mx5/board-mx53_smd.c index 59c0845eb4a..d42132a80e8 100644 --- a/arch/arm/mach-mx5/board-mx53_smd.c +++ b/arch/arm/mach-mx5/board-mx53_smd.c @@ -104,7 +104,7 @@ static inline void mx53_smd_fec_reset(void) gpio_set_value(SMD_FEC_PHY_RST, 1); } -static struct fec_platform_data mx53_smd_fec_data = { +static const struct fec_platform_data mx53_smd_fec_data __initconst = { .phy = PHY_INTERFACE_MODE_RMII, }; -- cgit v1.2.3 From 300a47b4378a3b2e7c2a423b0aa4d75fc78987d3 Mon Sep 17 00:00:00 2001 From: Richard Zhao Date: Fri, 9 Dec 2011 10:46:21 +0800 Subject: ARM: imx: fix cpufreq build errors CC arch/arm/plat-mxc/cpufreq.o arch/arm/plat-mxc/cpufreq.c:203: error: expected declaration specifiers or '...' before string constant arch/arm/plat-mxc/cpufreq.c:203: warning: data definition has no type or storage class arch/arm/plat-mxc/cpufreq.c:203: warning: type defaults to 'int' in declaration of 'MODULE_AUTHOR' arch/arm/plat-mxc/cpufreq.c:203: warning: function declaration isn't a prototype arch/arm/plat-mxc/cpufreq.c:204: error: expected declaration specifiers or '...' before string constant arch/arm/plat-mxc/cpufreq.c:204: warning: data definition has no type or storage class arch/arm/plat-mxc/cpufreq.c:204: warning: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION' arch/arm/plat-mxc/cpufreq.c:204: warning: function declaration isn't a prototype arch/arm/plat-mxc/cpufreq.c:205: error: expected declaration specifiers or '...' before string constant arch/arm/plat-mxc/cpufreq.c:205: warning: data definition has no type or storage class arch/arm/plat-mxc/cpufreq.c:205: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE' arch/arm/plat-mxc/cpufreq.c:205: warning: function declaration isn't a prototype make[1]: *** [arch/arm/plat-mxc/cpufreq.o] Error 1 make: *** [arch/arm/plat-mxc] Error 2 Signed-off-by: Richard Zhao Signed-off-by: Richard Zhao Signed-off-by: Sascha Hauer --- arch/arm/plat-mxc/cpufreq.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/plat-mxc/cpufreq.c b/arch/arm/plat-mxc/cpufreq.c index 74aac96cda2..adbff706ef6 100644 --- a/arch/arm/plat-mxc/cpufreq.c +++ b/arch/arm/plat-mxc/cpufreq.c @@ -17,6 +17,7 @@ * the CPU clock speed on the fly. */ +#include #include #include #include -- cgit v1.2.3 From 847a2ee7392e7d3278f9b82c4b503744c72ee463 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Mon, 5 Dec 2011 10:28:11 +0800 Subject: arm/imx: fix power button on imx51 babbage board Since commit 6571534 (plat-mxc: iomux-v3.h: implicitly enable pull-up/down when that's desired) was in, the power button on imx51 babbage board stopped working because it's pulled up by mistake. The patch removes the pull-up setting from the pad configuration for that gpio to make the power button back to work. Signed-off-by: Shawn Guo Signed-off-by: Sascha Hauer --- arch/arm/mach-mx5/board-mx51_babbage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-mx5/board-mx51_babbage.c b/arch/arm/mach-mx5/board-mx51_babbage.c index 5c837603ff0..24994bb5214 100644 --- a/arch/arm/mach-mx5/board-mx51_babbage.c +++ b/arch/arm/mach-mx5/board-mx51_babbage.c @@ -362,7 +362,7 @@ static void __init mx51_babbage_init(void) { iomux_v3_cfg_t usbh1stp = MX51_PAD_USBH1_STP__USBH1_STP; iomux_v3_cfg_t power_key = NEW_PAD_CTRL(MX51_PAD_EIM_A27__GPIO2_21, - PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | PAD_CTL_PUS_100K_UP); + PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH); imx51_soc_init(); -- cgit v1.2.3 From 5dbc8fca8ef5d719014f22345d990e957dcfc692 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Fri, 9 Dec 2011 11:07:37 -0500 Subject: Btrfs: fix btrfs_end_bio to deal with write errors to a single mirror btrfs_end_bio checks the number of errors on a bio against the max number of errors allowed before sending any EIOs up to the higher levels. If we got enough copies of the bio done for a given raid level, it is supposed to clear the bio error flag and return success. We have pointers to the original bio sent down by the higher layers and pointers to any cloned bios we made for raid purposes. If the original bio happens to be the one that got an io error, but not the last one to finish, it might not have the BIO_UPTODATE bit set. Then, when the last bio does finish, we'll call bio_end_io on the original bio. It won't have the uptodate bit set and we'll end up sending EIO to the higher layers. We already had a check for this, it just was conditional on getting the IO error on the very last bio. Make the check unconditional so we eat the EIOs properly. Signed-off-by: Chris Mason --- fs/btrfs/volumes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 0a8c8f8304b..91ea57a1474 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -3258,7 +3258,7 @@ static void btrfs_end_bio(struct bio *bio, int err) */ if (atomic_read(&bbio->error) > bbio->max_errors) { err = -EIO; - } else if (err) { + } else { /* * this bio is actually up to date, we didn't * go over the max number of errors -- cgit v1.2.3 From 4b44b40e04a758e2242ff4a3f7c15982801ec8bc Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 9 Dec 2011 16:31:52 -0500 Subject: NFSv4: Ensure correct locking when accessing the 'lock_states' list There are currently 2 places in the state recovery code, where we do not take sufficient precautions before accessing the state->lock_states. In both cases, we should be holding the state->state_lock. Reported-by: Pascal Bouchareine Signed-off-by: Trond Myklebust --- fs/nfs/nfs4state.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index da8d73ed9e0..6a7107ae6b7 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1156,11 +1156,13 @@ restart: if (status >= 0) { status = nfs4_reclaim_locks(state, ops); if (status >= 0) { + spin_lock(&state->state_lock); list_for_each_entry(lock, &state->lock_states, ls_locks) { if (!(lock->ls_flags & NFS_LOCK_INITIALIZED)) printk("%s: Lock reclaim failed!\n", __func__); } + spin_unlock(&state->state_lock); nfs4_put_open_state(state); goto restart; } @@ -1224,10 +1226,12 @@ static void nfs4_clear_open_state(struct nfs4_state *state) clear_bit(NFS_O_RDONLY_STATE, &state->flags); clear_bit(NFS_O_WRONLY_STATE, &state->flags); clear_bit(NFS_O_RDWR_STATE, &state->flags); + spin_lock(&state->state_lock); list_for_each_entry(lock, &state->lock_states, ls_locks) { lock->ls_seqid.flags = 0; lock->ls_flags &= ~NFS_LOCK_INITIALIZED; } + spin_unlock(&state->state_lock); } static void nfs4_reset_seqids(struct nfs_server *server, -- cgit v1.2.3 From 9aa7705c966c750dda3d5c8d8a20f8e46668911c Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sun, 27 Nov 2011 15:42:15 -0300 Subject: [media] [trivial] omap24xxcam-dma: Fix logical test Likely misuse of & vs &&. Signed-off-by: Joe Perches Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/omap24xxcam-dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/omap24xxcam-dma.c b/drivers/media/video/omap24xxcam-dma.c index 1d54b86c936..3ea38a8def8 100644 --- a/drivers/media/video/omap24xxcam-dma.c +++ b/drivers/media/video/omap24xxcam-dma.c @@ -506,7 +506,7 @@ int omap24xxcam_sgdma_queue(struct omap24xxcam_sgdma *sgdma, unsigned long flags; struct sgdma_state *sg_state; - if ((sglen < 0) || ((sglen > 0) & !sglist)) + if ((sglen < 0) || ((sglen > 0) && !sglist)) return -EINVAL; spin_lock_irqsave(&sgdma->lock, flags); -- cgit v1.2.3 From 652f89f64fabcdae9143ee2b4253cfa838fb0279 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 9 Dec 2011 19:05:58 -0500 Subject: NFSv4: Do not accept delegated opens when a delegation recall is in effect ...and report the servers that try to return a delegation when the client is using the CLAIM_DELEG_CUR open mode. That behaviour is explicitly forbidden in RFC3530. Signed-off-by: Trond Myklebust --- fs/nfs/nfs4proc.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index be2bbac1381..d9f4d78c341 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -39,6 +39,8 @@ #include #include #include +#include +#include #include #include #include @@ -894,6 +896,8 @@ out: static int can_open_delegated(struct nfs_delegation *delegation, fmode_t fmode) { + if (delegation == NULL) + return 0; if ((delegation->type & fmode) != fmode) return 0; if (test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags)) @@ -1036,8 +1040,7 @@ static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata) } rcu_read_lock(); delegation = rcu_dereference(nfsi->delegation); - if (delegation == NULL || - !can_open_delegated(delegation, fmode)) { + if (!can_open_delegated(delegation, fmode)) { rcu_read_unlock(); break; } @@ -1091,7 +1094,12 @@ static struct nfs4_state *nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data if (delegation) delegation_flags = delegation->flags; rcu_read_unlock(); - if ((delegation_flags & 1UL<o_arg.claim == NFS4_OPEN_CLAIM_DELEGATE_CUR) { + pr_err_ratelimited("NFS: Broken NFSv4 server %s is " + "returning a delegation for " + "OPEN(CLAIM_DELEGATE_CUR)\n", + NFS_CLIENT(inode)->cl_server); + } else if ((delegation_flags & 1UL<inode, data->owner->so_cred, &data->o_res); @@ -1423,11 +1431,9 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata) goto out_no_action; rcu_read_lock(); delegation = rcu_dereference(NFS_I(data->state->inode)->delegation); - if (delegation != NULL && - test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags) == 0) { - rcu_read_unlock(); - goto out_no_action; - } + if (data->o_arg.claim != NFS4_OPEN_CLAIM_DELEGATE_CUR && + can_open_delegated(delegation, data->o_arg.fmode)) + goto unlock_no_action; rcu_read_unlock(); } /* Update sequence id. */ @@ -1444,6 +1450,8 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata) return; rpc_call_start(task); return; +unlock_no_action: + rcu_read_unlock(); out_no_action: task->tk_action = NULL; -- cgit v1.2.3 From 6d3e32e63f1fb47b3ba104d13dfac116df7b2bbb Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Thu, 8 Dec 2011 12:10:50 +0000 Subject: x86, efi: Make efi_call_phys_{prelog,epilog} CONFIG_RELOCATABLE-aware efi_call_phys_prelog() sets up a 1:1 mapping of the physical address range in swapper_pg_dir. Instead of replacing then restoring entries in swapper_pg_dir we should be using initial_page_table which already contains the 1:1 mapping. It's safe to blindly switch back to swapper_pg_dir in the epilog because the physical EFI routines are only called before efi_enter_virtual_mode(), e.g. before any user processes have been forked. Therefore, we don't need to track which pgd was in %cr3 when we entered the prelog. The previous code actually contained a bug because it assumed that the kernel was loaded at a physical address within the first 8MB of ram, usually at 0x100000. However, this isn't the case with a CONFIG_RELOCATABLE=y kernel which could have been loaded anywhere in the physical address space. Also delete the ancient (and bogus) comments about the page table being restored after the lock is released. There is no locking. Cc: Matthew Garrett Cc: Darrent Hart Signed-off-by: Matt Fleming Link: http://lkml.kernel.org/r/1323346250.3894.74.camel@mfleming-mobl1.ger.corp.intel.com Signed-off-by: H. Peter Anvin --- arch/x86/platform/efi/efi_32.c | 48 ++---------------------------------------- 1 file changed, 2 insertions(+), 46 deletions(-) diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c index e36bf714cb7..40e446941dd 100644 --- a/arch/x86/platform/efi/efi_32.c +++ b/arch/x86/platform/efi/efi_32.c @@ -39,43 +39,14 @@ */ static unsigned long efi_rt_eflags; -static pgd_t efi_bak_pg_dir_pointer[2]; void efi_call_phys_prelog(void) { - unsigned long cr4; - unsigned long temp; struct desc_ptr gdt_descr; local_irq_save(efi_rt_eflags); - /* - * If I don't have PAE, I should just duplicate two entries in page - * directory. If I have PAE, I just need to duplicate one entry in - * page directory. - */ - cr4 = read_cr4_safe(); - - if (cr4 & X86_CR4_PAE) { - efi_bak_pg_dir_pointer[0].pgd = - swapper_pg_dir[pgd_index(0)].pgd; - swapper_pg_dir[0].pgd = - swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd; - } else { - efi_bak_pg_dir_pointer[0].pgd = - swapper_pg_dir[pgd_index(0)].pgd; - efi_bak_pg_dir_pointer[1].pgd = - swapper_pg_dir[pgd_index(0x400000)].pgd; - swapper_pg_dir[pgd_index(0)].pgd = - swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd; - temp = PAGE_OFFSET + 0x400000; - swapper_pg_dir[pgd_index(0x400000)].pgd = - swapper_pg_dir[pgd_index(temp)].pgd; - } - - /* - * After the lock is released, the original page table is restored. - */ + load_cr3(initial_page_table); __flush_tlb_all(); gdt_descr.address = __pa(get_cpu_gdt_table(0)); @@ -85,28 +56,13 @@ void efi_call_phys_prelog(void) void efi_call_phys_epilog(void) { - unsigned long cr4; struct desc_ptr gdt_descr; gdt_descr.address = (unsigned long)get_cpu_gdt_table(0); gdt_descr.size = GDT_SIZE - 1; load_gdt(&gdt_descr); - cr4 = read_cr4_safe(); - - if (cr4 & X86_CR4_PAE) { - swapper_pg_dir[pgd_index(0)].pgd = - efi_bak_pg_dir_pointer[0].pgd; - } else { - swapper_pg_dir[pgd_index(0)].pgd = - efi_bak_pg_dir_pointer[0].pgd; - swapper_pg_dir[pgd_index(0x400000)].pgd = - efi_bak_pg_dir_pointer[1].pgd; - } - - /* - * After the lock is released, the original page table is restored. - */ + load_cr3(swapper_pg_dir); __flush_tlb_all(); local_irq_restore(efi_rt_eflags); -- cgit v1.2.3 From 37d5993c5cc9bc83762ae1b5bd287438022e8afe Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 10 Dec 2011 20:38:32 +0800 Subject: ASoC: Fix WM8996 24.576MHz clock operation Record the clock after the divider as that is what all SYSCLK users see. Without this the other clock configuration in the device comes out at half rate. Signed-off-by: Mark Brown Cc: stable@kernel.org --- sound/soc/codecs/wm8996.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c index 645c980d6b8..a33b04d1719 100644 --- a/sound/soc/codecs/wm8996.c +++ b/sound/soc/codecs/wm8996.c @@ -1968,6 +1968,7 @@ static int wm8996_set_sysclk(struct snd_soc_dai *dai, break; case 24576000: ratediv = WM8996_SYSCLK_DIV; + wm8996->sysclk /= 2; case 12288000: snd_soc_update_bits(codec, WM8996_AIF_RATE, WM8996_SYSCLK_RATE, WM8996_SYSCLK_RATE); -- cgit v1.2.3 From e58f516ff4730c4047c3f104b061f7a03e9a263c Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Fri, 11 Nov 2011 16:28:05 +0100 Subject: mmc: mxcmmc: fix falling back to PIO When we can't configure the dma channel we want to fall back to PIO. We do this by setting host->do_dma to zero. This does not work as do_dma is used to see whether dma can be used for the current transfer. Instead, we have to set host->dma to NULL. Signed-off-by: Sascha Hauer Cc: Signed-off-by: Chris Ball --- drivers/mmc/host/mxcmmc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c index 325ea61e12d..8e0fbe99404 100644 --- a/drivers/mmc/host/mxcmmc.c +++ b/drivers/mmc/host/mxcmmc.c @@ -732,6 +732,7 @@ static void mxcmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) "failed to config DMA channel. Falling back to PIO\n"); dma_release_channel(host->dma); host->do_dma = 0; + host->dma = NULL; } } -- cgit v1.2.3 From 7833c66b2d764a3c883c2f5cc60cd8a6266dae15 Mon Sep 17 00:00:00 2001 From: Chris Ball Date: Fri, 11 Nov 2011 19:54:53 -0500 Subject: mmc: Add module.h include to sdhci-cns3xxx.c Fixes: drivers/mmc/host/sdhci-cns3xxx.c:110: error: 'THIS_MODULE' undeclared here (not in a function) Reported-by: Al Viro Signed-off-by: Chris Ball --- drivers/mmc/host/sdhci-cns3xxx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mmc/host/sdhci-cns3xxx.c b/drivers/mmc/host/sdhci-cns3xxx.c index 4b920b7621c..87b6f079b6e 100644 --- a/drivers/mmc/host/sdhci-cns3xxx.c +++ b/drivers/mmc/host/sdhci-cns3xxx.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include "sdhci-pltfm.h" -- cgit v1.2.3 From 6de5fc9cf7de334912de4cfd2d06eb2d744d2afe Mon Sep 17 00:00:00 2001 From: Stefan Nilsson XK Date: Thu, 3 Nov 2011 09:44:12 +0100 Subject: mmc: core: Add quirk for long data read time Adds a quirk that sets the data read timeout to a fixed value instead of relying on the information in the CSD. The timeout value chosen is 300ms since that has proven enough for the problematic cards found, but could be increased if other cards require this. This patch also enables this quirk for certain Micron cards known to have this problem. Signed-off-by: Stefan Nilsson XK Signed-off-by: Ulf Hansson Acked-by: Linus Walleij Cc: Signed-off-by: Chris Ball --- drivers/mmc/card/block.c | 8 ++++++++ drivers/mmc/core/core.c | 12 ++++++++++++ include/linux/mmc/card.h | 6 ++++++ 3 files changed, 26 insertions(+) diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index a1cb21f9530..1e0e27cbe98 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -1606,6 +1606,14 @@ static const struct mmc_fixup blk_fixups[] = MMC_QUIRK_BLK_NO_CMD23), MMC_FIXUP("MMC32G", 0x11, CID_OEMID_ANY, add_quirk_mmc, MMC_QUIRK_BLK_NO_CMD23), + + /* + * Some Micron MMC cards needs longer data read timeout than + * indicated in CSD. + */ + MMC_FIXUP(CID_NAME_ANY, 0x13, 0x200, add_quirk_mmc, + MMC_QUIRK_LONG_READ_TIME), + END_FIXUP }; diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 5278ffb20e7..74a012ad2ba 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -529,6 +529,18 @@ void mmc_set_data_timeout(struct mmc_data *data, const struct mmc_card *card) data->timeout_clks = 0; } } + + /* + * Some cards require longer data read timeout than indicated in CSD. + * Address this by setting the read timeout to a "reasonably high" + * value. For the cards tested, 300ms has proven enough. If necessary, + * this value can be increased if other problematic cards require this. + */ + if (mmc_card_long_read_time(card) && data->flags & MMC_DATA_READ) { + data->timeout_ns = 300000000; + data->timeout_clks = 0; + } + /* * Some cards need very high timeouts if driven in SPI mode. * The worst observed timeout was 900ms after writing a diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 415f2db414e..c8ef9bc54d5 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -218,6 +218,7 @@ struct mmc_card { #define MMC_QUIRK_INAND_CMD38 (1<<6) /* iNAND devices have broken CMD38 */ #define MMC_QUIRK_BLK_NO_CMD23 (1<<7) /* Avoid CMD23 for regular multiblock */ #define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8) /* Avoid sending 512 bytes in */ +#define MMC_QUIRK_LONG_READ_TIME (1<<9) /* Data read time > CSD says */ /* byte mode */ unsigned int poweroff_notify_state; /* eMMC4.5 notify feature */ #define MMC_NO_POWER_NOTIFICATION 0 @@ -433,6 +434,11 @@ static inline int mmc_card_broken_byte_mode_512(const struct mmc_card *c) return c->quirks & MMC_QUIRK_BROKEN_BYTE_MODE_512; } +static inline int mmc_card_long_read_time(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_LONG_READ_TIME; +} + #define mmc_card_name(c) ((c)->cid.prod_name) #define mmc_card_id(c) (dev_name(&(c)->dev)) -- cgit v1.2.3 From 96a85d548bf960ec8e8a0c3bca2b2e88e41549db Mon Sep 17 00:00:00 2001 From: Girish K S Date: Fri, 4 Nov 2011 16:22:47 +0530 Subject: mmc: core: Fix setting power notify state variable for non-eMMC This patch skips the setting of the power notify state variable for non eMMC 4.5 devices. Also fixes the problem of omap_hsmmc noisy/broken for suspend resume reported by Kevin Hilman. Signed-off-by: Girish K S Acked-by: Ulf Hansson Signed-off-by: Chris Ball --- drivers/mmc/core/mmc.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index dbf421a6279..90de9ba36d2 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -883,10 +883,14 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, card->ext_csd.generic_cmd6_time); if (err && err != -EBADMSG) goto free_card; - } - if (!err) - card->poweroff_notify_state = MMC_POWERED_ON; + /* + * The err can be -EBADMSG or 0, + * so check for success and update the flag + */ + if (!err) + card->poweroff_notify_state = MMC_POWERED_ON; + } /* * Activate high speed (if supported) -- cgit v1.2.3 From a80f16276388a177199204aa5b60f328d4464110 Mon Sep 17 00:00:00 2001 From: Girish K S Date: Tue, 15 Nov 2011 11:55:46 +0530 Subject: mmc: core: Fix power_off_notify during suspend The eMMC 4.5 devices respond to only RESET and AWAKE command in the sleep state. Hence the mmc switch command to notify power off state should be sent before the device enters sleep state. This patch fixes the same. Signed-off-by: Girish K S Signed-off-by: Chris Ball --- drivers/mmc/core/core.c | 81 ++++++++++++++++++++++++++++++------------------- drivers/mmc/core/mmc.c | 2 +- 2 files changed, 50 insertions(+), 33 deletions(-) diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 74a012ad2ba..7ee2e07f36f 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1225,6 +1225,46 @@ void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type) mmc_host_clk_release(host); } +static void mmc_poweroff_notify(struct mmc_host *host) +{ + struct mmc_card *card; + unsigned int timeout; + unsigned int notify_type = EXT_CSD_NO_POWER_NOTIFICATION; + int err = 0; + + card = host->card; + + /* + * Send power notify command only if card + * is mmc and notify state is powered ON + */ + if (card && mmc_card_mmc(card) && + (card->poweroff_notify_state == MMC_POWERED_ON)) { + + if (host->power_notify_type == MMC_HOST_PW_NOTIFY_SHORT) { + notify_type = EXT_CSD_POWER_OFF_SHORT; + timeout = card->ext_csd.generic_cmd6_time; + card->poweroff_notify_state = MMC_POWEROFF_SHORT; + } else { + notify_type = EXT_CSD_POWER_OFF_LONG; + timeout = card->ext_csd.power_off_longtime; + card->poweroff_notify_state = MMC_POWEROFF_LONG; + } + + err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, + EXT_CSD_POWER_OFF_NOTIFICATION, + notify_type, timeout); + + if (err && err != -EBADMSG) + pr_err("Device failed to respond within %d poweroff " + "time. Forcefully powering down the device\n", + timeout); + + /* Set the card state to no notification after the poweroff */ + card->poweroff_notify_state = MMC_NO_POWER_NOTIFICATION; + } +} + /* * Apply power to the MMC stack. This is a two-stage process. * First, we enable power to the card without the clock running. @@ -1281,42 +1321,12 @@ static void mmc_power_up(struct mmc_host *host) void mmc_power_off(struct mmc_host *host) { - struct mmc_card *card; - unsigned int notify_type; - unsigned int timeout; - int err; - mmc_host_clk_hold(host); - card = host->card; host->ios.clock = 0; host->ios.vdd = 0; - if (card && mmc_card_mmc(card) && - (card->poweroff_notify_state == MMC_POWERED_ON)) { - - if (host->power_notify_type == MMC_HOST_PW_NOTIFY_SHORT) { - notify_type = EXT_CSD_POWER_OFF_SHORT; - timeout = card->ext_csd.generic_cmd6_time; - card->poweroff_notify_state = MMC_POWEROFF_SHORT; - } else { - notify_type = EXT_CSD_POWER_OFF_LONG; - timeout = card->ext_csd.power_off_longtime; - card->poweroff_notify_state = MMC_POWEROFF_LONG; - } - - err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_POWER_OFF_NOTIFICATION, - notify_type, timeout); - - if (err && err != -EBADMSG) - pr_err("Device failed to respond within %d poweroff " - "time. Forcefully powering down the device\n", - timeout); - - /* Set the card state to no notification after the poweroff */ - card->poweroff_notify_state = MMC_NO_POWER_NOTIFICATION; - } + mmc_poweroff_notify(host); /* * Reset ocr mask to be the highest possible voltage supported for @@ -2314,8 +2324,15 @@ int mmc_suspend_host(struct mmc_host *host) * pre-claim the host. */ if (mmc_try_claim_host(host)) { - if (host->bus_ops->suspend) + if (host->bus_ops->suspend) { + /* + * For eMMC 4.5 device send notify command + * before sleep, because in sleep state eMMC 4.5 + * devices respond to only RESET and AWAKE cmd + */ + mmc_poweroff_notify(host); err = host->bus_ops->suspend(host); + } if (err == -ENOSYS || !host->bus_ops->resume) { /* * We simply "remove" the card in this case. diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 90de9ba36d2..d240427c124 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -876,7 +876,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, * set the notification byte in the ext_csd register of device */ if ((host->caps2 & MMC_CAP2_POWEROFF_NOTIFY) && - (card->poweroff_notify_state == MMC_NO_POWER_NOTIFICATION)) { + (card->ext_csd.rev >= 6)) { err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_POWER_OFF_NOTIFICATION, EXT_CSD_POWER_ON, -- cgit v1.2.3 From c99872a16fa7642987f30c750dc166674b0d8060 Mon Sep 17 00:00:00 2001 From: Kyungmin Park Date: Thu, 17 Nov 2011 13:34:33 +0900 Subject: mmc: core: Fix typo at mmc_card_sleep Fix wrong bus_ops->sleep check. (This isn't expected to have real-world consequences, because the mmc core always defines both 'awake' and 'sleep' ops.) Signed-off-by: Kyungmin Park Signed-off-by: Chris Ball --- drivers/mmc/core/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 7ee2e07f36f..271efeac860 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2218,7 +2218,7 @@ int mmc_card_sleep(struct mmc_host *host) mmc_bus_get(host); - if (host->bus_ops && !host->bus_dead && host->bus_ops->awake) + if (host->bus_ops && !host->bus_dead && host->bus_ops->sleep) err = host->bus_ops->sleep(host); mmc_bus_put(host); -- cgit v1.2.3 From f6bc41fb08cbd6943df358437e0af90c91a3caa3 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 16 Nov 2011 10:10:41 +0100 Subject: mmc: sh_mmcif: fix clock gating on platforms with a .down_pwr() method Do not power down the card in .set_ios(), unless MMC_POWER_OFF is requested. This fixes the MMCIF interface functionality on ecovec boards. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Chris Ball --- drivers/mmc/host/sh_mmcif.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index 369366c8e20..d5505f3fe2a 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -908,7 +908,7 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) if (host->power) { pm_runtime_put(&host->pd->dev); host->power = false; - if (p->down_pwr) + if (p->down_pwr && ios->power_mode == MMC_POWER_OFF) p->down_pwr(host->pd); } host->state = STATE_IDLE; -- cgit v1.2.3 From f6b8b52c68f6109db4be02b55660258ff503fc3b Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 16 Nov 2011 10:11:45 +0100 Subject: mmc: tmio: fix clock gating on platforms with a .set_pwr() method Do not power down the card in .set_ios(), unless MMC_POWER_OFF is requested. This fixes the SDHI functionality on ecovec. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Chris Ball --- drivers/mmc/host/tmio_mmc_pio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c index d85a60cda16..4208b395806 100644 --- a/drivers/mmc/host/tmio_mmc_pio.c +++ b/drivers/mmc/host/tmio_mmc_pio.c @@ -798,7 +798,7 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) /* start bus clock */ tmio_mmc_clk_start(host); } else if (ios->power_mode != MMC_POWER_UP) { - if (host->set_pwr) + if (host->set_pwr && ios->power_mode == MMC_POWER_OFF) host->set_pwr(host->pdev, 0); if ((pdata->flags & TMIO_MMC_HAS_COLD_CD) && pdata->power) { -- cgit v1.2.3 From 524bfca2b42a7c9dc43af13e1592b21dd1ce3fcc Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 21 Nov 2011 18:00:51 +0000 Subject: mmc: sdhci-s3c: Remove old and misprototyped suspend operations Now that the driver is using dev_pm_ops the suspend operations in the platform_driver structure won't get called so don't need to be there, and certainly shouldn't be the same function as dev_pm_ops since the signatures are different. Signed-off-by: Mark Brown Acked-by: Jaehoon Chung Signed-off-by: Chris Ball --- drivers/mmc/host/sdhci-s3c.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index 3d00e722efc..cb60c4197e0 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -644,8 +644,6 @@ static int sdhci_s3c_resume(struct platform_device *dev) static struct platform_driver sdhci_s3c_driver = { .probe = sdhci_s3c_probe, .remove = __devexit_p(sdhci_s3c_remove), - .suspend = sdhci_s3c_suspend, - .resume = sdhci_s3c_resume, .driver = { .owner = THIS_MODULE, .name = "s3c-sdhci", -- cgit v1.2.3 From 49df78074963c97e25debc3c67b72f059111607d Mon Sep 17 00:00:00 2001 From: Sujit Reddy Thumma Date: Wed, 23 Nov 2011 08:43:18 +0530 Subject: mmc: core: Fix deadlock when the CONFIG_MMC_UNSAFE_RESUME is not defined mmc_suspend_host() tries to claim host during suspend and release it only when the bus suspend operation is compeleted. If CONFIG_MMC_UNSAFE_RESUME is defined and the host is flagged as removable, mmc_suspend_host() tries to remove the card. In this process, the file system sync can get blocked trying to acquire host which is already claimed by mmc_suspend_host() causing deadlock. Fix this deadlock by releasing host before ->remove() is called. Signed-off-by: Sujit Reddy Thumma Acked-by: Ulf Hansson Acked-by: Linus Walleij Signed-off-by: Chris Ball --- drivers/mmc/core/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 271efeac860..950b97d7412 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2333,6 +2333,8 @@ int mmc_suspend_host(struct mmc_host *host) mmc_poweroff_notify(host); err = host->bus_ops->suspend(host); } + mmc_do_release_host(host); + if (err == -ENOSYS || !host->bus_ops->resume) { /* * We simply "remove" the card in this case. @@ -2347,7 +2349,6 @@ int mmc_suspend_host(struct mmc_host *host) host->pm_flags = 0; err = 0; } - mmc_do_release_host(host); } else { err = -EBUSY; } -- cgit v1.2.3 From 06c8eb9a9115dbbf1658a79f19f18a887c18119b Mon Sep 17 00:00:00 2001 From: Lothar Waßmann Date: Fri, 9 Dec 2011 14:38:11 +0100 Subject: ASoC: mxs: Add missing MODULE_LICENSE("GPL") MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The sound driver refuses to load as module, because of the missing MODULE_LICENSE("GPL"). The file header indicates that the driver is indeed published under the GPL. Signed-off-by: Lothar Waßmann Acked-by: Wolfram Sang Signed-off-by: Mark Brown --- sound/soc/mxs/mxs-pcm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/mxs/mxs-pcm.c b/sound/soc/mxs/mxs-pcm.c index dea5aa4aa64..8646913631d 100644 --- a/sound/soc/mxs/mxs-pcm.c +++ b/sound/soc/mxs/mxs-pcm.c @@ -357,3 +357,5 @@ static void __exit snd_mxs_pcm_exit(void) platform_driver_unregister(&mxs_pcm_driver); } module_exit(snd_mxs_pcm_exit); + +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 9fd369b193dceddd4e9e7f426c229c6104c80e28 Mon Sep 17 00:00:00 2001 From: Lothar Waßmann Date: Fri, 9 Dec 2011 14:38:12 +0100 Subject: ASoC: mxs: Add appropriate MODULE_ALIAS() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Lothar Waßmann Acked-by: Wolfram Sang Signed-off-by: Mark Brown --- sound/soc/mxs/mxs-pcm.c | 1 + sound/soc/mxs/mxs-sgtl5000.c | 1 + 2 files changed, 2 insertions(+) diff --git a/sound/soc/mxs/mxs-pcm.c b/sound/soc/mxs/mxs-pcm.c index 8646913631d..f39d7dd9fbc 100644 --- a/sound/soc/mxs/mxs-pcm.c +++ b/sound/soc/mxs/mxs-pcm.c @@ -359,3 +359,4 @@ static void __exit snd_mxs_pcm_exit(void) module_exit(snd_mxs_pcm_exit); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:mxs-pcm-audio"); diff --git a/sound/soc/mxs/mxs-sgtl5000.c b/sound/soc/mxs/mxs-sgtl5000.c index 7fbeaec06eb..1c57f6630a4 100644 --- a/sound/soc/mxs/mxs-sgtl5000.c +++ b/sound/soc/mxs/mxs-sgtl5000.c @@ -171,3 +171,4 @@ module_exit(mxs_sgtl5000_exit); MODULE_AUTHOR("Freescale Semiconductor, Inc."); MODULE_DESCRIPTION("MXS ALSA SoC Machine driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:mxs-sgtl5000"); -- cgit v1.2.3 From 23bbba3411715736ad1942f3bdbb18e1bbe6d45f Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Tue, 29 Nov 2011 18:21:41 -0300 Subject: [media] au0828: add missing USB ID 2040:7260 Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/au0828/au0828-cards.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/video/au0828/au0828-cards.c b/drivers/media/video/au0828/au0828-cards.c index 39fc923fc46..2e72bbd100a 100644 --- a/drivers/media/video/au0828/au0828-cards.c +++ b/drivers/media/video/au0828/au0828-cards.c @@ -324,6 +324,8 @@ struct usb_device_id au0828_usb_id_table[] = { .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL }, { USB_DEVICE(0x2040, 0x8200), .driver_info = AU0828_BOARD_HAUPPAUGE_WOODBURY }, + { USB_DEVICE(0x2040, 0x7260), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, { }, }; -- cgit v1.2.3 From 64a6b6cbfad64dae8230ff999394a4b1b9e82ceb Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Tue, 29 Nov 2011 18:23:11 -0300 Subject: [media] au0828: add missing USB ID 2040:7213 Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/au0828/au0828-cards.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/video/au0828/au0828-cards.c b/drivers/media/video/au0828/au0828-cards.c index 2e72bbd100a..2dba8c1ea09 100644 --- a/drivers/media/video/au0828/au0828-cards.c +++ b/drivers/media/video/au0828/au0828-cards.c @@ -326,6 +326,8 @@ struct usb_device_id au0828_usb_id_table[] = { .driver_info = AU0828_BOARD_HAUPPAUGE_WOODBURY }, { USB_DEVICE(0x2040, 0x7260), .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, + { USB_DEVICE(0x2040, 0x7213), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, { }, }; -- cgit v1.2.3 From 6b536a6ca52ae12b5378de6fb5da305a3c54dbd8 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Tue, 29 Nov 2011 18:55:04 -0300 Subject: [media] au0828: add missing models 72101, 72201 & 72261 to the model matrix Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/au0828/au0828-cards.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media/video/au0828/au0828-cards.c b/drivers/media/video/au0828/au0828-cards.c index 2dba8c1ea09..1c6015a04f9 100644 --- a/drivers/media/video/au0828/au0828-cards.c +++ b/drivers/media/video/au0828/au0828-cards.c @@ -162,11 +162,14 @@ static void hauppauge_eeprom(struct au0828_dev *dev, u8 *eeprom_data) switch (tv.model) { case 72000: /* WinTV-HVR950q (Retail, IR, ATSC/QAM */ case 72001: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */ + case 72101: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */ + case 72201: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */ case 72211: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */ case 72221: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */ case 72231: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */ case 72241: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM and analog video */ case 72251: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */ + case 72261: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */ case 72301: /* WinTV-HVR850 (Retail, IR, ATSC and analog video */ case 72500: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM */ break; -- cgit v1.2.3 From d1ee8878a142f81ea1b40d602c6360b752829437 Mon Sep 17 00:00:00 2001 From: Gary Thomas Date: Thu, 1 Dec 2011 08:51:09 -0300 Subject: [media] omap_vout: Fix compile error in 3.1 This patch is against the mainline v3.1 release (c3b92c8) and fixes a compile error when building for OMAP3+DSS+VOUT Acked-by: Laurent Pinchart Signed-off-by: Gary Thomas Cc: stable@kernel.org Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/omap/omap_vout.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c index 2d2a136e465..ee0d0b39cd1 100644 --- a/drivers/media/video/omap/omap_vout.c +++ b/drivers/media/video/omap/omap_vout.c @@ -38,6 +38,7 @@ #include #include #include +#include #include #include -- cgit v1.2.3 From a626f3945208af1d60d3dccf064cac3b15bc54ca Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Mon, 5 Dec 2011 06:12:15 -0300 Subject: [media] s5p_mfc_enc: fix s/H264/H263/ typo Signed-off-by: Peter Korsgaard Aked-by: Kamil Debski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-mfc/s5p_mfc_enc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c index 1e8cdb77d4b..dff9dc79879 100644 --- a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c +++ b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c @@ -61,7 +61,7 @@ static struct s5p_mfc_fmt formats[] = { .num_planes = 1, }, { - .name = "H264 Encoded Stream", + .name = "H263 Encoded Stream", .fourcc = V4L2_PIX_FMT_H263, .codec_mode = S5P_FIMV_CODEC_H263_ENC, .type = MFC_FMT_ENC, -- cgit v1.2.3 From 4c0b036db808054f10f79e9a3d7928cf90aeb186 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Mon, 5 Dec 2011 16:01:13 -0300 Subject: [media] V4L: soc-camera: fix compiler warnings on 64-bit platforms On 64-bit platforms assigning a pointer to a 32-bit variable causes a compiler warning and cannot actually work. Soc-camera currently doesn't support any 64-bit systems, but such platforms can be added in the and in any case compiler warnings should be avoided. Signed-off-by: Guennadi Liakhovetski Acked-by: Janusz Krzysztofik Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/ov6650.c | 2 +- drivers/media/video/sh_mobile_ceu_camera.c | 34 ++++++++++++++++++------------ drivers/media/video/sh_mobile_csi2.c | 4 ++-- drivers/media/video/soc_camera.c | 3 ++- include/media/soc_camera.h | 7 +++++- 5 files changed, 32 insertions(+), 18 deletions(-) diff --git a/drivers/media/video/ov6650.c b/drivers/media/video/ov6650.c index d5b057207a7..577941fa383 100644 --- a/drivers/media/video/ov6650.c +++ b/drivers/media/video/ov6650.c @@ -539,7 +539,7 @@ static u8 to_clkrc(struct v4l2_fract *timeperframe, static int ov6650_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) { struct i2c_client *client = v4l2_get_subdevdata(sd); - struct soc_camera_device *icd = (struct soc_camera_device *)sd->grp_id; + struct soc_camera_device *icd = v4l2_get_subdev_hostdata(sd); struct soc_camera_sense *sense = icd->sense; struct ov6650 *priv = to_ov6650(client); bool half_scale = !is_unscaled_ok(mf->width, mf->height, &priv->rect); diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c index f390682629c..c51decfcae1 100644 --- a/drivers/media/video/sh_mobile_ceu_camera.c +++ b/drivers/media/video/sh_mobile_ceu_camera.c @@ -566,8 +566,10 @@ static int sh_mobile_ceu_add_device(struct soc_camera_device *icd) ret = sh_mobile_ceu_soft_reset(pcdev); csi2_sd = find_csi2(pcdev); - if (csi2_sd) - csi2_sd->grp_id = (long)icd; + if (csi2_sd) { + csi2_sd->grp_id = soc_camera_grp_id(icd); + v4l2_set_subdev_hostdata(csi2_sd, icd); + } ret = v4l2_subdev_call(csi2_sd, core, s_power, 1); if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV) { @@ -768,7 +770,7 @@ static struct v4l2_subdev *find_bus_subdev(struct sh_mobile_ceu_dev *pcdev, { if (pcdev->csi2_pdev) { struct v4l2_subdev *csi2_sd = find_csi2(pcdev); - if (csi2_sd && csi2_sd->grp_id == (u32)icd) + if (csi2_sd && csi2_sd->grp_id == soc_camera_grp_id(icd)) return csi2_sd; } @@ -1089,8 +1091,9 @@ static int sh_mobile_ceu_get_formats(struct soc_camera_device *icd, unsigned int /* Try 2560x1920, 1280x960, 640x480, 320x240 */ mf.width = 2560 >> shift; mf.height = 1920 >> shift; - ret = v4l2_device_call_until_err(sd->v4l2_dev, (long)icd, video, - s_mbus_fmt, &mf); + ret = v4l2_device_call_until_err(sd->v4l2_dev, + soc_camera_grp_id(icd), video, + s_mbus_fmt, &mf); if (ret < 0) return ret; shift++; @@ -1389,7 +1392,8 @@ static int client_s_fmt(struct soc_camera_device *icd, bool ceu_1to1; int ret; - ret = v4l2_device_call_until_err(sd->v4l2_dev, (long)icd, video, + ret = v4l2_device_call_until_err(sd->v4l2_dev, + soc_camera_grp_id(icd), video, s_mbus_fmt, mf); if (ret < 0) return ret; @@ -1426,8 +1430,9 @@ static int client_s_fmt(struct soc_camera_device *icd, tmp_h = min(2 * tmp_h, max_height); mf->width = tmp_w; mf->height = tmp_h; - ret = v4l2_device_call_until_err(sd->v4l2_dev, (long)icd, video, - s_mbus_fmt, mf); + ret = v4l2_device_call_until_err(sd->v4l2_dev, + soc_camera_grp_id(icd), video, + s_mbus_fmt, mf); dev_geo(dev, "Camera scaled to %ux%u\n", mf->width, mf->height); if (ret < 0) { @@ -1580,8 +1585,9 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd, } if (interm_width < icd->user_width || interm_height < icd->user_height) { - ret = v4l2_device_call_until_err(sd->v4l2_dev, (int)icd, video, - s_mbus_fmt, &mf); + ret = v4l2_device_call_until_err(sd->v4l2_dev, + soc_camera_grp_id(icd), video, + s_mbus_fmt, &mf); if (ret < 0) return ret; @@ -1867,7 +1873,8 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd, mf.code = xlate->code; mf.colorspace = pix->colorspace; - ret = v4l2_device_call_until_err(sd->v4l2_dev, (long)icd, video, try_mbus_fmt, &mf); + ret = v4l2_device_call_until_err(sd->v4l2_dev, soc_camera_grp_id(icd), + video, try_mbus_fmt, &mf); if (ret < 0) return ret; @@ -1891,8 +1898,9 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd, */ mf.width = 2560; mf.height = 1920; - ret = v4l2_device_call_until_err(sd->v4l2_dev, (long)icd, video, - try_mbus_fmt, &mf); + ret = v4l2_device_call_until_err(sd->v4l2_dev, + soc_camera_grp_id(icd), video, + try_mbus_fmt, &mf); if (ret < 0) { /* Shouldn't actually happen... */ dev_err(icd->parent, diff --git a/drivers/media/video/sh_mobile_csi2.c b/drivers/media/video/sh_mobile_csi2.c index 37706eb81f2..bd0ca0e0446 100644 --- a/drivers/media/video/sh_mobile_csi2.c +++ b/drivers/media/video/sh_mobile_csi2.c @@ -142,7 +142,7 @@ static int sh_csi2_s_mbus_config(struct v4l2_subdev *sd, const struct v4l2_mbus_config *cfg) { struct sh_csi2 *priv = container_of(sd, struct sh_csi2, subdev); - struct soc_camera_device *icd = (struct soc_camera_device *)sd->grp_id; + struct soc_camera_device *icd = v4l2_get_subdev_hostdata(sd); struct v4l2_subdev *client_sd = soc_camera_to_subdev(icd); struct v4l2_mbus_config client_cfg = {.type = V4L2_MBUS_CSI2, .flags = priv->mipi_flags}; @@ -201,7 +201,7 @@ static void sh_csi2_hwinit(struct sh_csi2 *priv) static int sh_csi2_client_connect(struct sh_csi2 *priv) { struct sh_csi2_pdata *pdata = priv->pdev->dev.platform_data; - struct soc_camera_device *icd = (struct soc_camera_device *)priv->subdev.grp_id; + struct soc_camera_device *icd = v4l2_get_subdev_hostdata(&priv->subdev); struct v4l2_subdev *client_sd = soc_camera_to_subdev(icd); struct device *dev = v4l2_get_subdevdata(&priv->subdev); struct v4l2_mbus_config cfg; diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c index b72580c3895..62e4312515c 100644 --- a/drivers/media/video/soc_camera.c +++ b/drivers/media/video/soc_camera.c @@ -1103,7 +1103,8 @@ static int soc_camera_probe(struct soc_camera_device *icd) } sd = soc_camera_to_subdev(icd); - sd->grp_id = (long)icd; + sd->grp_id = soc_camera_grp_id(icd); + v4l2_set_subdev_hostdata(sd, icd); if (v4l2_ctrl_add_handler(&icd->ctrl_handler, sd->ctrl_handler)) goto ectrl; diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index b1377b931eb..5fb2c3d10c0 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -254,7 +254,7 @@ unsigned long soc_camera_apply_board_flags(struct soc_camera_link *icl, static inline struct video_device *soc_camera_i2c_to_vdev(const struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct soc_camera_device *icd = (struct soc_camera_device *)sd->grp_id; + struct soc_camera_device *icd = v4l2_get_subdev_hostdata(sd); return icd ? icd->vdev : NULL; } @@ -279,6 +279,11 @@ static inline struct soc_camera_device *soc_camera_from_vbq(const struct videobu return container_of(vq, struct soc_camera_device, vb_vidq); } +static inline u32 soc_camera_grp_id(const struct soc_camera_device *icd) +{ + return (icd->iface << 8) | (icd->devnum + 1); +} + void soc_camera_lock(struct vb2_queue *vq); void soc_camera_unlock(struct vb2_queue *vq); -- cgit v1.2.3 From 08da558ae0aaa488d8273ee44177c86580ba0d5a Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 7 Nov 2011 15:44:12 -0300 Subject: [media] V4L: mt9t112: use after free in mt9t112_probe() priv gets dereferenced in mt9t112_set_params() so we should return before calling that. Signed-off-by: Dan Carpenter Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/mt9t112.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/mt9t112.c b/drivers/media/video/mt9t112.c index 32114a3c0ca..7b34b11daf2 100644 --- a/drivers/media/video/mt9t112.c +++ b/drivers/media/video/mt9t112.c @@ -1083,8 +1083,10 @@ static int mt9t112_probe(struct i2c_client *client, v4l2_i2c_subdev_init(&priv->subdev, client, &mt9t112_subdev_ops); ret = mt9t112_camera_probe(client); - if (ret) + if (ret) { kfree(priv); + return ret; + } /* Cannot fail: using the default supported pixel code */ mt9t112_set_params(priv, &rect, V4L2_MBUS_FMT_UYVY8_2X8); -- cgit v1.2.3 From 9c0223b53a26c506ecc7a36ec491afa688eebee1 Mon Sep 17 00:00:00 2001 From: Janusz Krzysztofik Date: Thu, 24 Nov 2011 20:16:35 -0300 Subject: [media] V4L: omap1_camera: fix missing include Otherwise compilation breaks with: ... after apparently no longer included recursively from other header files. Signed-off-by: Janusz Krzysztofik Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/omap1_camera.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/omap1_camera.c b/drivers/media/video/omap1_camera.c index e87ae2f634b..6a6cf388bae 100644 --- a/drivers/media/video/omap1_camera.c +++ b/drivers/media/video/omap1_camera.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include -- cgit v1.2.3 From 6b806e30a3149816454a7ab71d50c244ebdb27d1 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Thu, 3 Nov 2011 08:12:00 -0300 Subject: [media] V4L: mt9m111: fix uninitialised mutex Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/mt9m111.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c index f023cc092c2..dda4685166d 100644 --- a/drivers/media/video/mt9m111.c +++ b/drivers/media/video/mt9m111.c @@ -954,6 +954,7 @@ static int mt9m111_probe(struct i2c_client *client, mt9m111->rect.height = MT9M111_MAX_HEIGHT; mt9m111->fmt = &mt9m111_colour_fmts[0]; mt9m111->lastpage = -1; + mutex_init(&mt9m111->power_lock); ret = mt9m111_video_probe(client); if (ret) { -- cgit v1.2.3 From 5eefb4f09bd8b250421fbd055e67d136d57f4030 Mon Sep 17 00:00:00 2001 From: Anssi Hannula Date: Tue, 6 Dec 2011 22:34:29 -0300 Subject: [media] ati_remote: switch to single-byte scancodes The ati_remote driver currently uses 2-byte scancodes. However, one of those bytes is actually a checksum and therefore shouldn't be considered as part of the scancode. Fix the driver to only use the actual data byte as a scancode and to check the checksum itself. Update the bundled keymaps accordingly. Since ati_remote was only migrated to the rc subsystem for 3.2, the previous scancodes weren't emitted on any stable kernel. Reported-by: George Spelvin Signed-off-by: Anssi Hannula Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/ati_remote.c | 111 +++++++++----------- drivers/media/rc/keymaps/rc-ati-x10.c | 96 ++++++++--------- drivers/media/rc/keymaps/rc-medion-x10.c | 128 +++++++++++------------ drivers/media/rc/keymaps/rc-snapstream-firefly.c | 114 ++++++++++---------- 4 files changed, 220 insertions(+), 229 deletions(-) diff --git a/drivers/media/rc/ati_remote.c b/drivers/media/rc/ati_remote.c index 303f22ea04c..01bb8daf4b0 100644 --- a/drivers/media/rc/ati_remote.c +++ b/drivers/media/rc/ati_remote.c @@ -189,7 +189,7 @@ struct ati_remote { dma_addr_t inbuf_dma; dma_addr_t outbuf_dma; - unsigned char old_data[2]; /* Detect duplicate events */ + unsigned char old_data; /* Detect duplicate events */ unsigned long old_jiffies; unsigned long acc_jiffies; /* handle acceleration */ unsigned long first_jiffies; @@ -221,35 +221,35 @@ struct ati_remote { /* Translation table from hardware messages to input events. */ static const struct { short kind; - unsigned char data1, data2; + unsigned char data; int type; unsigned int code; int value; } ati_remote_tbl[] = { /* Directional control pad axes */ - {KIND_ACCEL, 0x35, 0x70, EV_REL, REL_X, -1}, /* left */ - {KIND_ACCEL, 0x36, 0x71, EV_REL, REL_X, 1}, /* right */ - {KIND_ACCEL, 0x37, 0x72, EV_REL, REL_Y, -1}, /* up */ - {KIND_ACCEL, 0x38, 0x73, EV_REL, REL_Y, 1}, /* down */ + {KIND_ACCEL, 0x70, EV_REL, REL_X, -1}, /* left */ + {KIND_ACCEL, 0x71, EV_REL, REL_X, 1}, /* right */ + {KIND_ACCEL, 0x72, EV_REL, REL_Y, -1}, /* up */ + {KIND_ACCEL, 0x73, EV_REL, REL_Y, 1}, /* down */ /* Directional control pad diagonals */ - {KIND_LU, 0x39, 0x74, EV_REL, 0, 0}, /* left up */ - {KIND_RU, 0x3a, 0x75, EV_REL, 0, 0}, /* right up */ - {KIND_LD, 0x3c, 0x77, EV_REL, 0, 0}, /* left down */ - {KIND_RD, 0x3b, 0x76, EV_REL, 0, 0}, /* right down */ + {KIND_LU, 0x74, EV_REL, 0, 0}, /* left up */ + {KIND_RU, 0x75, EV_REL, 0, 0}, /* right up */ + {KIND_LD, 0x77, EV_REL, 0, 0}, /* left down */ + {KIND_RD, 0x76, EV_REL, 0, 0}, /* right down */ /* "Mouse button" buttons */ - {KIND_LITERAL, 0x3d, 0x78, EV_KEY, BTN_LEFT, 1}, /* left btn down */ - {KIND_LITERAL, 0x3e, 0x79, EV_KEY, BTN_LEFT, 0}, /* left btn up */ - {KIND_LITERAL, 0x41, 0x7c, EV_KEY, BTN_RIGHT, 1},/* right btn down */ - {KIND_LITERAL, 0x42, 0x7d, EV_KEY, BTN_RIGHT, 0},/* right btn up */ + {KIND_LITERAL, 0x78, EV_KEY, BTN_LEFT, 1}, /* left btn down */ + {KIND_LITERAL, 0x79, EV_KEY, BTN_LEFT, 0}, /* left btn up */ + {KIND_LITERAL, 0x7c, EV_KEY, BTN_RIGHT, 1},/* right btn down */ + {KIND_LITERAL, 0x7d, EV_KEY, BTN_RIGHT, 0},/* right btn up */ /* Artificial "doubleclick" events are generated by the hardware. * They are mapped to the "side" and "extra" mouse buttons here. */ - {KIND_FILTERED, 0x3f, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left dblclick */ - {KIND_FILTERED, 0x43, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right dblclick */ + {KIND_FILTERED, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left dblclick */ + {KIND_FILTERED, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right dblclick */ /* Non-mouse events are handled by rc-core */ - {KIND_END, 0x00, 0x00, EV_MAX + 1, 0, 0} + {KIND_END, 0x00, EV_MAX + 1, 0, 0} }; /* Local function prototypes */ @@ -396,25 +396,6 @@ static int ati_remote_sendpacket(struct ati_remote *ati_remote, u16 cmd, unsigne return retval; } -/* - * ati_remote_event_lookup - */ -static int ati_remote_event_lookup(int rem, unsigned char d1, unsigned char d2) -{ - int i; - - for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) { - /* - * Decide if the table entry matches the remote input. - */ - if (ati_remote_tbl[i].data1 == d1 && - ati_remote_tbl[i].data2 == d2) - return i; - - } - return -1; -} - /* * ati_remote_compute_accel * @@ -463,7 +444,15 @@ static void ati_remote_input_report(struct urb *urb) int index = -1; int acc; int remote_num; - unsigned char scancode[2]; + unsigned char scancode; + int i; + + /* + * data[0] = 0x14 + * data[1] = data[2] + data[3] + 0xd5 (a checksum byte) + * data[2] = the key code (with toggle bit in MSB with some models) + * data[3] = channel << 4 (the low 4 bits must be zero) + */ /* Deal with strange looking inputs */ if ( (urb->actual_length != 4) || (data[0] != 0x14) || @@ -472,6 +461,13 @@ static void ati_remote_input_report(struct urb *urb) return; } + if (data[1] != ((data[2] + data[3] + 0xd5) & 0xff)) { + dbginfo(&ati_remote->interface->dev, + "wrong checksum in input: %02x %02x %02x %02x\n", + data[0], data[1], data[2], data[3]); + return; + } + /* Mask unwanted remote channels. */ /* note: remote_num is 0-based, channel 1 on remote == 0 here */ remote_num = (data[3] >> 4) & 0x0f; @@ -482,31 +478,30 @@ static void ati_remote_input_report(struct urb *urb) return; } - scancode[0] = (((data[1] - ((remote_num + 1) << 4)) & 0xf0) | (data[1] & 0x0f)); - /* - * Some devices (e.g. SnapStream Firefly) use 8080 as toggle code, - * so we have to clear them. The first bit is a bit tricky as the - * "non-toggled" state depends on remote_num, so we xor it with the - * second bit which is only used for toggle. + * MSB is a toggle code, though only used by some devices + * (e.g. SnapStream Firefly) */ - scancode[0] ^= (data[2] & 0x80); - - scancode[1] = data[2] & ~0x80; + scancode = data[2] & 0x7f; - /* Look up event code index in mouse translation table. */ - index = ati_remote_event_lookup(remote_num, scancode[0], scancode[1]); + /* Look up event code index in the mouse translation table. */ + for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) { + if (scancode == ati_remote_tbl[i].data) { + index = i; + break; + } + } if (index >= 0) { dbginfo(&ati_remote->interface->dev, - "channel 0x%02x; mouse data %02x,%02x; index %d; keycode %d\n", - remote_num, data[1], data[2], index, ati_remote_tbl[index].code); + "channel 0x%02x; mouse data %02x; index %d; keycode %d\n", + remote_num, data[2], index, ati_remote_tbl[index].code); if (!dev) return; /* no mouse device */ } else dbginfo(&ati_remote->interface->dev, - "channel 0x%02x; key data %02x,%02x, scancode %02x,%02x\n", - remote_num, data[1], data[2], scancode[0], scancode[1]); + "channel 0x%02x; key data %02x, scancode %02x\n", + remote_num, data[2], scancode); if (index >= 0 && ati_remote_tbl[index].kind == KIND_LITERAL) { @@ -523,8 +518,7 @@ static void ati_remote_input_report(struct urb *urb) unsigned long now = jiffies; /* Filter duplicate events which happen "too close" together. */ - if (ati_remote->old_data[0] == data[1] && - ati_remote->old_data[1] == data[2] && + if (ati_remote->old_data == data[2] && time_before(now, ati_remote->old_jiffies + msecs_to_jiffies(repeat_filter))) { ati_remote->repeat_count++; @@ -533,8 +527,7 @@ static void ati_remote_input_report(struct urb *urb) ati_remote->first_jiffies = now; } - ati_remote->old_data[0] = data[1]; - ati_remote->old_data[1] = data[2]; + ati_remote->old_data = data[2]; ati_remote->old_jiffies = now; /* Ensure we skip at least the 4 first duplicate events (generated @@ -549,14 +542,13 @@ static void ati_remote_input_report(struct urb *urb) if (index < 0) { /* Not a mouse event, hand it to rc-core. */ - u32 rc_code = (scancode[0] << 8) | scancode[1]; /* * We don't use the rc-core repeat handling yet as * it would cause ghost repeats which would be a * regression for this driver. */ - rc_keydown_notimeout(ati_remote->rdev, rc_code, + rc_keydown_notimeout(ati_remote->rdev, scancode, data[2]); rc_keyup(ati_remote->rdev); return; @@ -607,8 +599,7 @@ static void ati_remote_input_report(struct urb *urb) input_sync(dev); ati_remote->old_jiffies = jiffies; - ati_remote->old_data[0] = data[1]; - ati_remote->old_data[1] = data[2]; + ati_remote->old_data = data[2]; } } diff --git a/drivers/media/rc/keymaps/rc-ati-x10.c b/drivers/media/rc/keymaps/rc-ati-x10.c index e1b8b2605c4..81506440ede 100644 --- a/drivers/media/rc/keymaps/rc-ati-x10.c +++ b/drivers/media/rc/keymaps/rc-ati-x10.c @@ -27,55 +27,55 @@ #include static struct rc_map_table ati_x10[] = { - { 0xd20d, KEY_1 }, - { 0xd30e, KEY_2 }, - { 0xd40f, KEY_3 }, - { 0xd510, KEY_4 }, - { 0xd611, KEY_5 }, - { 0xd712, KEY_6 }, - { 0xd813, KEY_7 }, - { 0xd914, KEY_8 }, - { 0xda15, KEY_9 }, - { 0xdc17, KEY_0 }, - { 0xc500, KEY_A }, - { 0xc601, KEY_B }, - { 0xde19, KEY_C }, - { 0xe01b, KEY_D }, - { 0xe621, KEY_E }, - { 0xe823, KEY_F }, + { 0x0d, KEY_1 }, + { 0x0e, KEY_2 }, + { 0x0f, KEY_3 }, + { 0x10, KEY_4 }, + { 0x11, KEY_5 }, + { 0x12, KEY_6 }, + { 0x13, KEY_7 }, + { 0x14, KEY_8 }, + { 0x15, KEY_9 }, + { 0x17, KEY_0 }, + { 0x00, KEY_A }, + { 0x01, KEY_B }, + { 0x19, KEY_C }, + { 0x1b, KEY_D }, + { 0x21, KEY_E }, + { 0x23, KEY_F }, - { 0xdd18, KEY_KPENTER }, /* "check" */ - { 0xdb16, KEY_MENU }, /* "menu" */ - { 0xc702, KEY_POWER }, /* Power */ - { 0xc803, KEY_TV }, /* TV */ - { 0xc904, KEY_DVD }, /* DVD */ - { 0xca05, KEY_WWW }, /* WEB */ - { 0xcb06, KEY_BOOKMARKS }, /* "book" */ - { 0xcc07, KEY_EDIT }, /* "hand" */ - { 0xe11c, KEY_COFFEE }, /* "timer" */ - { 0xe520, KEY_FRONT }, /* "max" */ - { 0xe21d, KEY_LEFT }, /* left */ - { 0xe41f, KEY_RIGHT }, /* right */ - { 0xe722, KEY_DOWN }, /* down */ - { 0xdf1a, KEY_UP }, /* up */ - { 0xe31e, KEY_OK }, /* "OK" */ - { 0xce09, KEY_VOLUMEDOWN }, /* VOL + */ - { 0xcd08, KEY_VOLUMEUP }, /* VOL - */ - { 0xcf0a, KEY_MUTE }, /* MUTE */ - { 0xd00b, KEY_CHANNELUP }, /* CH + */ - { 0xd10c, KEY_CHANNELDOWN },/* CH - */ - { 0xec27, KEY_RECORD }, /* ( o) red */ - { 0xea25, KEY_PLAY }, /* ( >) */ - { 0xe924, KEY_REWIND }, /* (<<) */ - { 0xeb26, KEY_FORWARD }, /* (>>) */ - { 0xed28, KEY_STOP }, /* ([]) */ - { 0xee29, KEY_PAUSE }, /* ('') */ - { 0xf02b, KEY_PREVIOUS }, /* (<-) */ - { 0xef2a, KEY_NEXT }, /* (>+) */ - { 0xf22d, KEY_INFO }, /* PLAYING */ - { 0xf32e, KEY_HOME }, /* TOP */ - { 0xf42f, KEY_END }, /* END */ - { 0xf530, KEY_SELECT }, /* SELECT */ + { 0x18, KEY_KPENTER }, /* "check" */ + { 0x16, KEY_MENU }, /* "menu" */ + { 0x02, KEY_POWER }, /* Power */ + { 0x03, KEY_TV }, /* TV */ + { 0x04, KEY_DVD }, /* DVD */ + { 0x05, KEY_WWW }, /* WEB */ + { 0x06, KEY_BOOKMARKS }, /* "book" */ + { 0x07, KEY_EDIT }, /* "hand" */ + { 0x1c, KEY_COFFEE }, /* "timer" */ + { 0x20, KEY_FRONT }, /* "max" */ + { 0x1d, KEY_LEFT }, /* left */ + { 0x1f, KEY_RIGHT }, /* right */ + { 0x22, KEY_DOWN }, /* down */ + { 0x1a, KEY_UP }, /* up */ + { 0x1e, KEY_OK }, /* "OK" */ + { 0x09, KEY_VOLUMEDOWN }, /* VOL + */ + { 0x08, KEY_VOLUMEUP }, /* VOL - */ + { 0x0a, KEY_MUTE }, /* MUTE */ + { 0x0b, KEY_CHANNELUP }, /* CH + */ + { 0x0c, KEY_CHANNELDOWN },/* CH - */ + { 0x27, KEY_RECORD }, /* ( o) red */ + { 0x25, KEY_PLAY }, /* ( >) */ + { 0x24, KEY_REWIND }, /* (<<) */ + { 0x26, KEY_FORWARD }, /* (>>) */ + { 0x28, KEY_STOP }, /* ([]) */ + { 0x29, KEY_PAUSE }, /* ('') */ + { 0x2b, KEY_PREVIOUS }, /* (<-) */ + { 0x2a, KEY_NEXT }, /* (>+) */ + { 0x2d, KEY_INFO }, /* PLAYING */ + { 0x2e, KEY_HOME }, /* TOP */ + { 0x2f, KEY_END }, /* END */ + { 0x30, KEY_SELECT }, /* SELECT */ }; static struct rc_map_list ati_x10_map = { diff --git a/drivers/media/rc/keymaps/rc-medion-x10.c b/drivers/media/rc/keymaps/rc-medion-x10.c index 09e2cc01d11..479cdb89781 100644 --- a/drivers/media/rc/keymaps/rc-medion-x10.c +++ b/drivers/media/rc/keymaps/rc-medion-x10.c @@ -25,70 +25,70 @@ #include static struct rc_map_table medion_x10[] = { - { 0xf12c, KEY_TV }, /* TV */ - { 0xf22d, KEY_VCR }, /* VCR */ - { 0xc904, KEY_DVD }, /* DVD */ - { 0xcb06, KEY_AUDIO }, /* MUSIC */ - - { 0xf32e, KEY_RADIO }, /* RADIO */ - { 0xca05, KEY_DIRECTORY }, /* PHOTO */ - { 0xf42f, KEY_INFO }, /* TV-PREVIEW */ - { 0xf530, KEY_LIST }, /* CHANNEL-LST */ - - { 0xe01b, KEY_SETUP }, /* SETUP */ - { 0xf631, KEY_VIDEO }, /* VIDEO DESKTOP */ - - { 0xcd08, KEY_VOLUMEDOWN }, /* VOL - */ - { 0xce09, KEY_VOLUMEUP }, /* VOL + */ - { 0xd00b, KEY_CHANNELUP }, /* CHAN + */ - { 0xd10c, KEY_CHANNELDOWN }, /* CHAN - */ - { 0xc500, KEY_MUTE }, /* MUTE */ - - { 0xf732, KEY_RED }, /* red */ - { 0xf833, KEY_GREEN }, /* green */ - { 0xf934, KEY_YELLOW }, /* yellow */ - { 0xfa35, KEY_BLUE }, /* blue */ - { 0xdb16, KEY_TEXT }, /* TXT */ - - { 0xd20d, KEY_1 }, - { 0xd30e, KEY_2 }, - { 0xd40f, KEY_3 }, - { 0xd510, KEY_4 }, - { 0xd611, KEY_5 }, - { 0xd712, KEY_6 }, - { 0xd813, KEY_7 }, - { 0xd914, KEY_8 }, - { 0xda15, KEY_9 }, - { 0xdc17, KEY_0 }, - { 0xe11c, KEY_SEARCH }, /* TV/RAD, CH SRC */ - { 0xe520, KEY_DELETE }, /* DELETE */ - - { 0xfb36, KEY_KEYBOARD }, /* RENAME */ - { 0xdd18, KEY_SCREEN }, /* SNAPSHOT */ - - { 0xdf1a, KEY_UP }, /* up */ - { 0xe722, KEY_DOWN }, /* down */ - { 0xe21d, KEY_LEFT }, /* left */ - { 0xe41f, KEY_RIGHT }, /* right */ - { 0xe31e, KEY_OK }, /* OK */ - - { 0xfc37, KEY_SELECT }, /* ACQUIRE IMAGE */ - { 0xfd38, KEY_EDIT }, /* EDIT IMAGE */ - - { 0xe924, KEY_REWIND }, /* rewind (<<) */ - { 0xea25, KEY_PLAY }, /* play ( >) */ - { 0xeb26, KEY_FORWARD }, /* forward (>>) */ - { 0xec27, KEY_RECORD }, /* record ( o) */ - { 0xed28, KEY_STOP }, /* stop ([]) */ - { 0xee29, KEY_PAUSE }, /* pause ('') */ - - { 0xe621, KEY_PREVIOUS }, /* prev */ - { 0xfe39, KEY_SWITCHVIDEOMODE }, /* F SCR */ - { 0xe823, KEY_NEXT }, /* next */ - { 0xde19, KEY_MENU }, /* MENU */ - { 0xff3a, KEY_LANGUAGE }, /* AUDIO */ - - { 0xc702, KEY_POWER }, /* POWER */ + { 0x2c, KEY_TV }, /* TV */ + { 0x2d, KEY_VCR }, /* VCR */ + { 0x04, KEY_DVD }, /* DVD */ + { 0x06, KEY_AUDIO }, /* MUSIC */ + + { 0x2e, KEY_RADIO }, /* RADIO */ + { 0x05, KEY_DIRECTORY }, /* PHOTO */ + { 0x2f, KEY_INFO }, /* TV-PREVIEW */ + { 0x30, KEY_LIST }, /* CHANNEL-LST */ + + { 0x1b, KEY_SETUP }, /* SETUP */ + { 0x31, KEY_VIDEO }, /* VIDEO DESKTOP */ + + { 0x08, KEY_VOLUMEDOWN }, /* VOL - */ + { 0x09, KEY_VOLUMEUP }, /* VOL + */ + { 0x0b, KEY_CHANNELUP }, /* CHAN + */ + { 0x0c, KEY_CHANNELDOWN }, /* CHAN - */ + { 0x00, KEY_MUTE }, /* MUTE */ + + { 0x32, KEY_RED }, /* red */ + { 0x33, KEY_GREEN }, /* green */ + { 0x34, KEY_YELLOW }, /* yellow */ + { 0x35, KEY_BLUE }, /* blue */ + { 0x16, KEY_TEXT }, /* TXT */ + + { 0x0d, KEY_1 }, + { 0x0e, KEY_2 }, + { 0x0f, KEY_3 }, + { 0x10, KEY_4 }, + { 0x11, KEY_5 }, + { 0x12, KEY_6 }, + { 0x13, KEY_7 }, + { 0x14, KEY_8 }, + { 0x15, KEY_9 }, + { 0x17, KEY_0 }, + { 0x1c, KEY_SEARCH }, /* TV/RAD, CH SRC */ + { 0x20, KEY_DELETE }, /* DELETE */ + + { 0x36, KEY_KEYBOARD }, /* RENAME */ + { 0x18, KEY_SCREEN }, /* SNAPSHOT */ + + { 0x1a, KEY_UP }, /* up */ + { 0x22, KEY_DOWN }, /* down */ + { 0x1d, KEY_LEFT }, /* left */ + { 0x1f, KEY_RIGHT }, /* right */ + { 0x1e, KEY_OK }, /* OK */ + + { 0x37, KEY_SELECT }, /* ACQUIRE IMAGE */ + { 0x38, KEY_EDIT }, /* EDIT IMAGE */ + + { 0x24, KEY_REWIND }, /* rewind (<<) */ + { 0x25, KEY_PLAY }, /* play ( >) */ + { 0x26, KEY_FORWARD }, /* forward (>>) */ + { 0x27, KEY_RECORD }, /* record ( o) */ + { 0x28, KEY_STOP }, /* stop ([]) */ + { 0x29, KEY_PAUSE }, /* pause ('') */ + + { 0x21, KEY_PREVIOUS }, /* prev */ + { 0x39, KEY_SWITCHVIDEOMODE }, /* F SCR */ + { 0x23, KEY_NEXT }, /* next */ + { 0x19, KEY_MENU }, /* MENU */ + { 0x3a, KEY_LANGUAGE }, /* AUDIO */ + + { 0x02, KEY_POWER }, /* POWER */ }; static struct rc_map_list medion_x10_map = { diff --git a/drivers/media/rc/keymaps/rc-snapstream-firefly.c b/drivers/media/rc/keymaps/rc-snapstream-firefly.c index ef146520931..c7f33ec719b 100644 --- a/drivers/media/rc/keymaps/rc-snapstream-firefly.c +++ b/drivers/media/rc/keymaps/rc-snapstream-firefly.c @@ -22,63 +22,63 @@ #include static struct rc_map_table snapstream_firefly[] = { - { 0xf12c, KEY_ZOOM }, /* Maximize */ - { 0xc702, KEY_CLOSE }, - - { 0xd20d, KEY_1 }, - { 0xd30e, KEY_2 }, - { 0xd40f, KEY_3 }, - { 0xd510, KEY_4 }, - { 0xd611, KEY_5 }, - { 0xd712, KEY_6 }, - { 0xd813, KEY_7 }, - { 0xd914, KEY_8 }, - { 0xda15, KEY_9 }, - { 0xdc17, KEY_0 }, - { 0xdb16, KEY_BACK }, - { 0xdd18, KEY_KPENTER }, /* ent */ - - { 0xce09, KEY_VOLUMEUP }, - { 0xcd08, KEY_VOLUMEDOWN }, - { 0xcf0a, KEY_MUTE }, - { 0xd00b, KEY_CHANNELUP }, - { 0xd10c, KEY_CHANNELDOWN }, - { 0xc500, KEY_VENDOR }, /* firefly */ - - { 0xf32e, KEY_INFO }, - { 0xf42f, KEY_OPTION }, - - { 0xe21d, KEY_LEFT }, - { 0xe41f, KEY_RIGHT }, - { 0xe722, KEY_DOWN }, - { 0xdf1a, KEY_UP }, - { 0xe31e, KEY_OK }, - - { 0xe11c, KEY_MENU }, - { 0xe520, KEY_EXIT }, - - { 0xec27, KEY_RECORD }, - { 0xea25, KEY_PLAY }, - { 0xed28, KEY_STOP }, - { 0xe924, KEY_REWIND }, - { 0xeb26, KEY_FORWARD }, - { 0xee29, KEY_PAUSE }, - { 0xf02b, KEY_PREVIOUS }, - { 0xef2a, KEY_NEXT }, - - { 0xcb06, KEY_AUDIO }, /* Music */ - { 0xca05, KEY_IMAGES }, /* Photos */ - { 0xc904, KEY_DVD }, - { 0xc803, KEY_TV }, - { 0xcc07, KEY_VIDEO }, - - { 0xc601, KEY_HELP }, - { 0xf22d, KEY_MODE }, /* Mouse */ - - { 0xde19, KEY_A }, - { 0xe01b, KEY_B }, - { 0xe621, KEY_C }, - { 0xe823, KEY_D }, + { 0x2c, KEY_ZOOM }, /* Maximize */ + { 0x02, KEY_CLOSE }, + + { 0x0d, KEY_1 }, + { 0x0e, KEY_2 }, + { 0x0f, KEY_3 }, + { 0x10, KEY_4 }, + { 0x11, KEY_5 }, + { 0x12, KEY_6 }, + { 0x13, KEY_7 }, + { 0x14, KEY_8 }, + { 0x15, KEY_9 }, + { 0x17, KEY_0 }, + { 0x16, KEY_BACK }, + { 0x18, KEY_KPENTER }, /* ent */ + + { 0x09, KEY_VOLUMEUP }, + { 0x08, KEY_VOLUMEDOWN }, + { 0x0a, KEY_MUTE }, + { 0x0b, KEY_CHANNELUP }, + { 0x0c, KEY_CHANNELDOWN }, + { 0x00, KEY_VENDOR }, /* firefly */ + + { 0x2e, KEY_INFO }, + { 0x2f, KEY_OPTION }, + + { 0x1d, KEY_LEFT }, + { 0x1f, KEY_RIGHT }, + { 0x22, KEY_DOWN }, + { 0x1a, KEY_UP }, + { 0x1e, KEY_OK }, + + { 0x1c, KEY_MENU }, + { 0x20, KEY_EXIT }, + + { 0x27, KEY_RECORD }, + { 0x25, KEY_PLAY }, + { 0x28, KEY_STOP }, + { 0x24, KEY_REWIND }, + { 0x26, KEY_FORWARD }, + { 0x29, KEY_PAUSE }, + { 0x2b, KEY_PREVIOUS }, + { 0x2a, KEY_NEXT }, + + { 0x06, KEY_AUDIO }, /* Music */ + { 0x05, KEY_IMAGES }, /* Photos */ + { 0x04, KEY_DVD }, + { 0x03, KEY_TV }, + { 0x07, KEY_VIDEO }, + + { 0x01, KEY_HELP }, + { 0x2d, KEY_MODE }, /* Mouse */ + + { 0x19, KEY_A }, + { 0x1b, KEY_B }, + { 0x21, KEY_C }, + { 0x23, KEY_D }, }; static struct rc_map_list snapstream_firefly_map = { -- cgit v1.2.3 From a32390d808b5b7a6b1c7f9236673c917b4733f13 Mon Sep 17 00:00:00 2001 From: Thomas Jarosch Date: Sat, 15 Oct 2011 18:38:40 -0300 Subject: [media] m5mols: Fix logic in sanity check Detected by "cppcheck". Signed-off-by: Thomas Jarosch Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/m5mols/m5mols_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/m5mols/m5mols_core.c b/drivers/media/video/m5mols/m5mols_core.c index 68497f8ddcd..5da8d74df50 100644 --- a/drivers/media/video/m5mols/m5mols_core.c +++ b/drivers/media/video/m5mols/m5mols_core.c @@ -333,7 +333,7 @@ int m5mols_mode(struct m5mols_info *info, u8 mode) int ret = -EINVAL; u8 reg; - if (mode < REG_PARAMETER && mode > REG_CAPTURE) + if (mode < REG_PARAMETER || mode > REG_CAPTURE) return ret; ret = m5mols_read_u8(sd, SYSTEM_SYSMODE, ®); -- cgit v1.2.3 From 393a23fc9377ac3deaa97c5cc00b5c78746c8570 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 8 Dec 2011 06:56:22 -0300 Subject: [media] s5p-fimc: Fix camera input configuration in subdev operations When using only subdev user-space operations the camera interface input was not configured properly. Fix this by updating the corresponding data structure in set_fmt operation. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 82d9ab6984e..2cc3b916672 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -1242,6 +1242,7 @@ static int fimc_subdev_set_fmt(struct v4l2_subdev *sd, mutex_lock(&fimc->lock); set_frame_bounds(ff, mf->width, mf->height); + fimc->vid_cap.mf = *mf; ff->fmt = ffmt; /* Reset the crop rectangle if required. */ -- cgit v1.2.3 From 9811ccdfa94b4773c8030569bd8ec75eafa485ac Mon Sep 17 00:00:00 2001 From: Arnaud Patard Date: Sun, 11 Dec 2011 20:32:25 +0100 Subject: ARM: 7204/1: arch/arm/kernel/setup.c: initialize arm_dma_zone_size earlier arm_dma_zone_size is used by arm_bootmem_free() which is called by paging_init(). Thus it needs to be set before calling it. Signed-off-by: Arnaud Patard Acked-by: Nicolas Pitre Cc: stable@kernel.org Signed-off-by: Russell King --- arch/arm/kernel/setup.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 1bdd0adbb7d..8fc2c8fcbdc 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -902,6 +902,12 @@ void __init setup_arch(char **cmdline_p) machine_desc = mdesc; machine_name = mdesc->name; +#ifdef CONFIG_ZONE_DMA + if (mdesc->dma_zone_size) { + extern unsigned long arm_dma_zone_size; + arm_dma_zone_size = mdesc->dma_zone_size; + } +#endif if (mdesc->soft_reboot) reboot_setup("s"); @@ -932,12 +938,6 @@ void __init setup_arch(char **cmdline_p) tcm_init(); -#ifdef CONFIG_ZONE_DMA - if (mdesc->dma_zone_size) { - extern unsigned long arm_dma_zone_size; - arm_dma_zone_size = mdesc->dma_zone_size; - } -#endif #ifdef CONFIG_MULTI_IRQ_HANDLER handle_arch_irq = mdesc->handle_irq; #endif -- cgit v1.2.3 From 62e4a13e602214908341fad068ff91f31aed1a4e Mon Sep 17 00:00:00 2001 From: Jonathan Neuschäfer Date: Sun, 11 Dec 2011 19:15:49 +0100 Subject: ASoC: WM8958: correctly show firmware magic on mismatch MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Jonathan Neuschäfer Signed-off-by: Mark Brown --- sound/soc/codecs/wm8958-dsp2.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/codecs/wm8958-dsp2.c b/sound/soc/codecs/wm8958-dsp2.c index 0293763debe..5a14d5c0e0e 100644 --- a/sound/soc/codecs/wm8958-dsp2.c +++ b/sound/soc/codecs/wm8958-dsp2.c @@ -60,6 +60,8 @@ static int wm8958_dsp2_fw(struct snd_soc_codec *codec, const char *name, } if (memcmp(fw->data, "WMFW", 4) != 0) { + memcpy(&data32, fw->data, sizeof(data32)); + data32 = be32_to_cpu(data32); dev_err(codec->dev, "%s: firmware has bad file magic %08x\n", name, data32); goto err; -- cgit v1.2.3 From 497d496598f411cb7f0690725a0e8b9029cebdb9 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 12 Dec 2011 11:26:00 +0800 Subject: ASoC: Fix hx4700 error handling to free gpios if snd_soc_register_card fails Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- sound/soc/pxa/hx4700.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sound/soc/pxa/hx4700.c b/sound/soc/pxa/hx4700.c index 65c124831a0..c664e33fb6d 100644 --- a/sound/soc/pxa/hx4700.c +++ b/sound/soc/pxa/hx4700.c @@ -209,9 +209,10 @@ static int __devinit hx4700_audio_probe(struct platform_device *pdev) snd_soc_card_hx4700.dev = &pdev->dev; ret = snd_soc_register_card(&snd_soc_card_hx4700); if (ret) - return ret; + gpio_free_array(hx4700_audio_gpios, + ARRAY_SIZE(hx4700_audio_gpios)); - return 0; + return ret; } static int __devexit hx4700_audio_remove(struct platform_device *pdev) -- cgit v1.2.3 From 0d0e3064a88cc8d6bd3a9b43c5ae069ca838fc6e Mon Sep 17 00:00:00 2001 From: Chris Bagwell Date: Sun, 11 Dec 2011 23:50:59 -0800 Subject: Input: wacom - add product id used by Samsung Slate 7 New product ID reported by Harvey Braun on linuxwacom mailing list and also tested this patch with new hardware. Signed-off-by: Chris Bagwell Acked-by: Ping Cheng Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_wac.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index da0d8761e77..2ee47d01a3b 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -1470,6 +1470,9 @@ static const struct wacom_features wacom_features_0xE3 = static const struct wacom_features wacom_features_0xE6 = { "Wacom ISDv4 E6", WACOM_PKGLEN_TPC2FG, 27760, 15694, 255, 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; +static const struct wacom_features wacom_features_0xEC = + { "Wacom ISDv4 EC", WACOM_PKGLEN_GRAPHIRE, 25710, 14500, 255, + 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x47 = { "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023, 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; @@ -1611,6 +1614,7 @@ const struct usb_device_id wacom_ids[] = { { USB_DEVICE_WACOM(0xE2) }, { USB_DEVICE_WACOM(0xE3) }, { USB_DEVICE_WACOM(0xE6) }, + { USB_DEVICE_WACOM(0xEC) }, { USB_DEVICE_WACOM(0x47) }, { USB_DEVICE_LENOVO(0x6004) }, { } -- cgit v1.2.3 From 3a7f8fb1d8c9b6a066b0452cea47c85547c97723 Mon Sep 17 00:00:00 2001 From: Xi Wang Date: Sun, 11 Dec 2011 23:40:56 -0800 Subject: Input: cma3000_d0x - fix signedness bug in cma3000_thread_irq() The error check (intr_status < 0) didn't work because intr_status is a u8. Change its type to signed int. Signed-off-by: Xi Wang Signed-off-by: Dmitry Torokhov --- drivers/input/misc/cma3000_d0x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/input/misc/cma3000_d0x.c b/drivers/input/misc/cma3000_d0x.c index 1633b634226..09f8f202558 100644 --- a/drivers/input/misc/cma3000_d0x.c +++ b/drivers/input/misc/cma3000_d0x.c @@ -114,8 +114,8 @@ static void decode_mg(struct cma3000_accl_data *data, int *datax, static irqreturn_t cma3000_thread_irq(int irq, void *dev_id) { struct cma3000_accl_data *data = dev_id; - int datax, datay, dataz; - u8 ctrl, mode, range, intr_status; + int datax, datay, dataz, intr_status; + u8 ctrl, mode, range; intr_status = CMA3000_READ(data, CMA3000_INTSTATUS, "interrupt status"); if (intr_status < 0) -- cgit v1.2.3 From 8521478f67e95ada4e87970c7b41e504c724b2cf Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 12 Dec 2011 00:05:53 -0800 Subject: Input: synaptics - fix touchpad not working after S2R on Vostro V13 Synaptics touchpads on several Dell laptops, particularly Vostro V13 systems, may not respond properly to PS/2 commands and queries immediately after resuming from suspend to RAM. This leads to unresponsive touchpad after suspend/resume cycle. Adding a 1-second delay after resetting the device allows touchpad to finish initializing (calibrating?) and start reacting properly. Reported-by: Daniel Manrique Tested-by: Daniel Manrique Cc: stable@kernel.org Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/synaptics.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index c080b828e5d..a6dcd18e9ad 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -24,6 +24,7 @@ */ #include +#include #include #include #include @@ -1220,6 +1221,16 @@ static int synaptics_reconnect(struct psmouse *psmouse) do { psmouse_reset(psmouse); + if (retry) { + /* + * On some boxes, right after resuming, the touchpad + * needs some time to finish initializing (I assume + * it needs time to calibrate) and start responding + * to Synaptics-specific queries, so let's wait a + * bit. + */ + ssleep(1); + } error = synaptics_detect(psmouse, 0); } while (error && ++retry < 3); -- cgit v1.2.3 From f6a290b419a2675c4b77a6b0731cd2a64332365e Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Mon, 7 Nov 2011 22:05:21 +1100 Subject: [SCSI] mpt2sas: _scsih_smart_predicted_fault uses GFP_KERNEL in interrupt context _scsih_smart_predicted_fault is called in an interrupt and therefore must allocate memory using GFP_ATOMIC. Signed-off-by: Anton Blanchard Cc: Signed-off-by: James Bottomley --- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 4e041f6d808..d570573b796 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -4335,7 +4335,7 @@ _scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle) /* insert into event log */ sz = offsetof(Mpi2EventNotificationReply_t, EventData) + sizeof(Mpi2EventDataSasDeviceStatusChange_t); - event_reply = kzalloc(sz, GFP_KERNEL); + event_reply = kzalloc(sz, GFP_ATOMIC); if (!event_reply) { printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, __func__); -- cgit v1.2.3 From ad537689c30d8e35300dcc93a109a966b8a89478 Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Fri, 18 Nov 2011 09:02:09 -0800 Subject: [SCSI] qla2xxx: Remove qla2x00_wait_for_loop_ready function. This function can wait for 5min under certain scenarios. One of them is when the port is down from switch and bus reset is issued. The bus reset used to wait for 5 minutes for the loop and upper layer callers used to hang and give stack trace because of getting stuck for 120 sec. It is legacy code that was used when the driver used to do queuing of the commands. Signed-off-by: Saurav Kashyap Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_os.c | 70 +++---------------------------------------- 1 file changed, 4 insertions(+), 66 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index fd14c7bfc62..93673d3094e 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -814,49 +814,6 @@ qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha) return return_status; } -/* - * qla2x00_wait_for_loop_ready - * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop - * to be in LOOP_READY state. - * Input: - * ha - pointer to host adapter structure - * - * Note: - * Does context switching-Release SPIN_LOCK - * (if any) before calling this routine. - * - * - * Return: - * Success (LOOP_READY) : 0 - * Failed (LOOP_NOT_READY) : 1 - */ -static inline int -qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha) -{ - int return_status = QLA_SUCCESS; - unsigned long loop_timeout ; - struct qla_hw_data *ha = vha->hw; - scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); - - /* wait for 5 min at the max for loop to be ready */ - loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ); - - while ((!atomic_read(&base_vha->loop_down_timer) && - atomic_read(&base_vha->loop_state) == LOOP_DOWN) || - atomic_read(&base_vha->loop_state) != LOOP_READY) { - if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) { - return_status = QLA_FUNCTION_FAILED; - break; - } - msleep(1000); - if (time_after_eq(jiffies, loop_timeout)) { - return_status = QLA_FUNCTION_FAILED; - break; - } - } - return (return_status); -} - static void sp_get(struct srb *sp) { @@ -1035,12 +992,6 @@ __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type, "Wait for hba online failed for cmd=%p.\n", cmd); goto eh_reset_failed; } - err = 1; - if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS) { - ql_log(ql_log_warn, vha, 0x800b, - "Wait for loop ready failed for cmd=%p.\n", cmd); - goto eh_reset_failed; - } err = 2; if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1) != QLA_SUCCESS) { @@ -1137,10 +1088,9 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd) goto eh_bus_reset_done; } - if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) { - if (qla2x00_loop_reset(vha) == QLA_SUCCESS) - ret = SUCCESS; - } + if (qla2x00_loop_reset(vha) == QLA_SUCCESS) + ret = SUCCESS; + if (ret == FAILED) goto eh_bus_reset_done; @@ -1206,15 +1156,6 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd) if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS) goto eh_host_reset_lock; - /* - * Fixme-may be dpc thread is active and processing - * loop_resync,so wait a while for it to - * be completed and then issue big hammer.Otherwise - * it may cause I/O failure as big hammer marks the - * devices as lost kicking of the port_down_timer - * while dpc is stuck for the mailbox to complete. - */ - qla2x00_wait_for_loop_ready(vha); if (vha != base_vha) { if (qla2x00_vp_abort_isp(vha)) goto eh_host_reset_lock; @@ -1297,16 +1238,13 @@ qla2x00_loop_reset(scsi_qla_host_t *vha) atomic_set(&vha->loop_state, LOOP_DOWN); atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); qla2x00_mark_all_devices_lost(vha, 0); - qla2x00_wait_for_loop_ready(vha); } if (ha->flags.enable_lip_reset) { ret = qla2x00_lip_reset(vha); - if (ret != QLA_SUCCESS) { + if (ret != QLA_SUCCESS) ql_dbg(ql_dbg_taskm, vha, 0x802e, "lip_reset failed (%d).\n", ret); - } else - qla2x00_wait_for_loop_ready(vha); } /* Issue marker command only when we are going to start the I/O */ -- cgit v1.2.3 From 4e85e3d92fd1b52989882062f5cb143a31375b62 Mon Sep 17 00:00:00 2001 From: Arun Easi Date: Fri, 18 Nov 2011 09:02:10 -0800 Subject: [SCSI] qla2xxx: Check for SCSI status on underruns. Signed-off-by: Arun Easi Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_isr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 2516adf1aee..7b91b290ffd 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -1741,7 +1741,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) resid, scsi_bufflen(cp)); cp->result = DID_ERROR << 16 | lscsi_status; - break; + goto check_scsi_status; } if (!lscsi_status && -- cgit v1.2.3 From be5ea3cfa15ddef0bee9dfbc214c2113119087a2 Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Fri, 18 Nov 2011 09:02:11 -0800 Subject: [SCSI] qla2xxx: Don't call alloc_fw_dump for ISP82XX. Signed-off-by: Saurav Kashyap Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_init.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index f03e915f187..54ea68cec4c 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1509,7 +1509,8 @@ enable_82xx_npiv: &ha->fw_xcb_count, NULL, NULL, &ha->max_npiv_vports, NULL); - if (!fw_major_version && ql2xallocfwdump) + if (!fw_major_version && ql2xallocfwdump + && !IS_QLA82XX(ha)) qla2x00_alloc_fw_dump(vha); } } else { -- cgit v1.2.3 From 0cd33fcfb54f2eb053ead3cca35ad9775fc01301 Mon Sep 17 00:00:00 2001 From: Giridhar Malavali Date: Fri, 18 Nov 2011 09:02:12 -0800 Subject: [SCSI] qla2xxx: Revert back the request queue mapping to request queue 0. If there is an error creating multiple response queues then we need to revert the request queue mapping back to request queue 0. Signed-off-by: Giridhar Malavali Signed-off-by: Andrew Vasquez Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_os.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 93673d3094e..01c87004b21 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -423,6 +423,7 @@ fail2: qla25xx_delete_queues(vha); destroy_workqueue(ha->wq); ha->wq = NULL; + vha->req = ha->req_q_map[0]; fail: ha->mqenable = 0; kfree(ha->req_q_map); -- cgit v1.2.3 From 841c5e5cee140115b03355c39e4c3f1798ec34bc Mon Sep 17 00:00:00 2001 From: Giridhar Malavali Date: Fri, 18 Nov 2011 09:02:13 -0800 Subject: [SCSI] qla2xxx: Stop unconditional completion of mailbox commands issued in interrupt mode during firmware hang. Signed-off-by: Giridhar Malavali Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_nx.c | 5 ++++- drivers/scsi/qla2xxx/qla_os.c | 5 ++++- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c index 94bded5ddce..d2005c3c824 100644 --- a/drivers/scsi/qla2xxx/qla_nx.c +++ b/drivers/scsi/qla2xxx/qla_nx.c @@ -4075,7 +4075,10 @@ qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha) ha->flags.isp82xx_fw_hung = 1; if (ha->flags.mbox_busy) { ha->flags.mbox_int = 1; - complete(&ha->mbx_intr_comp); + if (test_bit(MBX_INTR_WAIT, + &ha->mbx_cmd_flags)) { + complete(&ha->mbx_intr_comp); + } } break; } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 01c87004b21..abec1dd3119 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -4014,7 +4014,10 @@ qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) ql_dbg(ql_dbg_aer, vha, 0x9001, "Due to pci channel io frozen, doing premature " "completion of mbx command.\n"); - complete(&ha->mbx_intr_comp); + if (test_bit(MBX_INTR_WAIT, + &ha->mbx_cmd_flags)) { + complete(&ha->mbx_intr_comp); + } } } qla2x00_free_irqs(vha); -- cgit v1.2.3 From 3aadff356bb80dae1ebb0a2e68974fdbb39fe034 Mon Sep 17 00:00:00 2001 From: Giridhar Malavali Date: Fri, 18 Nov 2011 09:02:14 -0800 Subject: [SCSI] qla2xxx: Enable Minidump by default with default capture mask 0x1f. Signed-off-by: Giridhar Malavali Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_os.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index abec1dd3119..71d62593c11 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -201,12 +201,12 @@ MODULE_PARM_DESC(ql2xmdcapmask, "Set the Minidump driver capture mask level. " "Default is 0x7F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F."); -int ql2xmdenable; +int ql2xmdenable = 1; module_param(ql2xmdenable, int, S_IRUGO); MODULE_PARM_DESC(ql2xmdenable, "Enable/disable MiniDump. " - "0 (Default) - MiniDump disabled. " - "1 - MiniDump enabled."); + "0 - MiniDump disabled. " + "1 (Default) - MiniDump enabled."); /* * SCSI host template entry points -- cgit v1.2.3 From 1806fcd5d3d7644511e57b1d0a397837b0b38623 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Fri, 18 Nov 2011 09:02:15 -0800 Subject: [SCSI] qla2xxx: Return the correct value for a mailbox command if 82xx is in reset recovery. We need to return QLA_FUNCTION_TIMEOUT immediately otherwise we mess up the mailbox command state machine. Signed-off-by: Andrew Vasquez Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_mbx.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 3b3cec9f6ac..f965a57f5d6 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -79,8 +79,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp) mcp->mb[0] = MBS_LINK_DOWN_ERROR; ql_log(ql_log_warn, base_vha, 0x1004, "FW hung = %d.\n", ha->flags.isp82xx_fw_hung); - rval = QLA_FUNCTION_FAILED; - goto premature_exit; + return QLA_FUNCTION_TIMEOUT; } /* -- cgit v1.2.3 From 10a340e6415d938939724743a4da71fd63f5a95c Mon Sep 17 00:00:00 2001 From: Chad Dupuis Date: Fri, 18 Nov 2011 09:02:16 -0800 Subject: [SCSI] qla2xxx: Display IPE error message for ISP82xx. [jejb: fixup checkpatch error] Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_nx.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c index d2005c3c824..8dd96da7870 100644 --- a/drivers/scsi/qla2xxx/qla_nx.c +++ b/drivers/scsi/qla2xxx/qla_nx.c @@ -3858,6 +3858,11 @@ void qla82xx_watchdog(scsi_qla_host_t *vha) QLA82XX_CRB_PEG_NET_3 + 0x3c), qla82xx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c)); + if (LSW(MSB(halt_status)) == 0x67) + ql_log(ql_log_warn, vha, 0xb052, + "Firmware aborted with " + "error code 0x00006700. Device is " + "being reset.\n"); if (halt_status & HALT_STATUS_UNRECOVERABLE) { set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags); -- cgit v1.2.3 From c8f6544e6d831f05720687f3536d5cbc290ff181 Mon Sep 17 00:00:00 2001 From: Chad Dupuis Date: Fri, 18 Nov 2011 09:02:17 -0800 Subject: [SCSI] qla2xxx: Encapsulate prematurely completing mailbox commands during ISP82xx firmware hang. Signed-off-by: Giridhar Malavali Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_dbg.c | 6 +++--- drivers/scsi/qla2xxx/qla_gbl.h | 1 + drivers/scsi/qla2xxx/qla_nx.c | 33 ++++++++++++++++----------------- drivers/scsi/qla2xxx/qla_os.c | 12 ++---------- 4 files changed, 22 insertions(+), 30 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index 9df4787715c..e320d54d2e3 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -17,12 +17,12 @@ * | Queue Command and IO tracing | 0x302e | 0x3008 | * | DPC Thread | 0x401c | | * | Async Events | 0x5059 | | - * | Timer Routines | 0x600d | | + * | Timer Routines | 0x6010 | 0x600e,0x600f | * | User Space Interactions | 0x709d | | - * | Task Management | 0x8041 | | + * | Task Management | 0x8041 | 0x800b | * | AER/EEH | 0x900f | | * | Virtual Port | 0xa007 | | - * | ISP82XX Specific | 0xb051 | | + * | ISP82XX Specific | 0xb052 | | * | MultiQ | 0xc00b | | * | Misc | 0xd00b | | * ---------------------------------------------------------------------- diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index ce32d8135c9..c0c11afb685 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -578,6 +578,7 @@ extern int qla82xx_check_md_needed(scsi_qla_host_t *); extern void qla82xx_chip_reset_cleanup(scsi_qla_host_t *); extern int qla82xx_mbx_beacon_ctl(scsi_qla_host_t *, int); extern char *qdev_state(uint32_t); +extern void qla82xx_clear_pending_mbx(scsi_qla_host_t *); /* BSG related functions */ extern int qla24xx_bsg_request(struct fc_bsg_job *); diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c index 8dd96da7870..60d999d335c 100644 --- a/drivers/scsi/qla2xxx/qla_nx.c +++ b/drivers/scsi/qla2xxx/qla_nx.c @@ -3817,6 +3817,19 @@ exit: return rval; } +void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha) +{ + struct qla_hw_data *ha = vha->hw; + + if (ha->flags.mbox_busy) { + ha->flags.mbox_int = 1; + ql_log(ql_log_warn, vha, 0x6010, + "Doing premature completion of mbx command.\n"); + if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags)) + complete(&ha->mbx_intr_comp); + } +} + void qla82xx_watchdog(scsi_qla_host_t *vha) { uint32_t dev_state, halt_status; @@ -3874,16 +3887,8 @@ void qla82xx_watchdog(scsi_qla_host_t *vha) } qla2xxx_wake_dpc(vha); ha->flags.isp82xx_fw_hung = 1; - if (ha->flags.mbox_busy) { - ha->flags.mbox_int = 1; - ql_log(ql_log_warn, vha, 0x6007, - "Due to FW hung, doing " - "premature completion of mbx " - "command.\n"); - if (test_bit(MBX_INTR_WAIT, - &ha->mbx_cmd_flags)) - complete(&ha->mbx_intr_comp); - } + ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n"); + qla82xx_clear_pending_mbx(vha); } } } @@ -4078,13 +4083,7 @@ qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha) msleep(1000); if (qla82xx_check_fw_alive(vha)) { ha->flags.isp82xx_fw_hung = 1; - if (ha->flags.mbox_busy) { - ha->flags.mbox_int = 1; - if (test_bit(MBX_INTR_WAIT, - &ha->mbx_cmd_flags)) { - complete(&ha->mbx_intr_comp); - } - } + qla82xx_clear_pending_mbx(vha); break; } } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 71d62593c11..f9e5b85e84d 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -4009,16 +4009,8 @@ qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) /* For ISP82XX complete any pending mailbox cmd */ if (IS_QLA82XX(ha)) { ha->flags.isp82xx_fw_hung = 1; - if (ha->flags.mbox_busy) { - ha->flags.mbox_int = 1; - ql_dbg(ql_dbg_aer, vha, 0x9001, - "Due to pci channel io frozen, doing premature " - "completion of mbx command.\n"); - if (test_bit(MBX_INTR_WAIT, - &ha->mbx_cmd_flags)) { - complete(&ha->mbx_intr_comp); - } - } + ql_dbg(ql_dbg_aer, vha, 0x9001, "Pci channel io frozen\n"); + qla82xx_clear_pending_mbx(vha); } qla2x00_free_irqs(vha); pci_disable_device(pdev); -- cgit v1.2.3 From 1c89fe3b51a2f8068f2f9faa9c48584151416583 Mon Sep 17 00:00:00 2001 From: David Henningsson Date: Mon, 12 Dec 2011 14:01:17 +0800 Subject: ALSA: HDA: Set position fix to LPIB for an Atom/Poulsbo based device For the Asus 1101HA, reporting position by reading the DMA position buffer map seems unstable and often wrong. The reporter says that position_fix=LPIB works much better (although not 100%, but this is probably due to other issues). The controller chip is an Intel Poulsbo 8086:811b (rev 07) controller, and complete alsa-info is available here: https://launchpadlibrarian.net/86691768/alsa-info.txt.1TNwyE5Ea7 Cc: stable@kernel.org (3.0+) BugLink: http://bugs.launchpad.net/bugs/825709 Tested-by: Stefano Lodi Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_intel.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 7d98240def0..84d11d7ed71 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2507,6 +2507,7 @@ static struct snd_pci_quirk position_fix_list[] __devinitdata = { SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB), SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB), SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB), + SND_PCI_QUIRK(0x1043, 0x83ce, "ASUS 1101HA", POS_FIX_LPIB), SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB), SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB), SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB), -- cgit v1.2.3 From 8937f2f1c4bc6a9098fd71eb4a7deba5f0683118 Mon Sep 17 00:00:00 2001 From: Giridhar Malavali Date: Fri, 18 Nov 2011 09:02:18 -0800 Subject: [SCSI] qla2xxx: Clear mailbox busy flag during premature mailbox completion for ISP82xx. Signed-off-by: Giridhar Malavali Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_mbx.c | 2 ++ drivers/scsi/qla2xxx/qla_nx.c | 1 + 2 files changed, 3 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index f965a57f5d6..6ff7c3cbd0b 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -162,6 +162,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp) HINT_MBX_INT_PENDING) { spin_unlock_irqrestore(&ha->hardware_lock, flags); + ha->flags.mbox_busy = 0; ql_dbg(ql_dbg_mbx, base_vha, 0x1010, "Pending mailbox timeout, exiting.\n"); rval = QLA_FUNCTION_TIMEOUT; @@ -187,6 +188,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp) HINT_MBX_INT_PENDING) { spin_unlock_irqrestore(&ha->hardware_lock, flags); + ha->flags.mbox_busy = 0; ql_dbg(ql_dbg_mbx, base_vha, 0x1012, "Pending mailbox timeout, exiting.\n"); rval = QLA_FUNCTION_TIMEOUT; diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c index 60d999d335c..54246f93466 100644 --- a/drivers/scsi/qla2xxx/qla_nx.c +++ b/drivers/scsi/qla2xxx/qla_nx.c @@ -3823,6 +3823,7 @@ void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha) if (ha->flags.mbox_busy) { ha->flags.mbox_int = 1; + ha->flags.mbox_busy = 0; ql_log(ql_log_warn, vha, 0x6010, "Doing premature completion of mbx command.\n"); if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags)) -- cgit v1.2.3 From 631549169801df054210839cfda0aceef78966af Mon Sep 17 00:00:00 2001 From: Giridhar Malavali Date: Fri, 18 Nov 2011 09:02:19 -0800 Subject: [SCSI] qla2xxx: Disable generating pause frames when firmware hang detected for ISP82xx. Signed-off-by: Giridhar Malavali Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_dbg.c | 2 +- drivers/scsi/qla2xxx/qla_mbx.c | 20 ++++++++++++++++++-- drivers/scsi/qla2xxx/qla_nx.c | 6 +++++- drivers/scsi/qla2xxx/qla_nx.h | 4 ++++ 4 files changed, 28 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index e320d54d2e3..f3cddd5800c 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -12,7 +12,7 @@ * | Level | Last Value Used | Holes | * ---------------------------------------------------------------------- * | Module Init and Probe | 0x0116 | | - * | Mailbox commands | 0x1129 | | + * | Mailbox commands | 0x112b | | * | Device Discovery | 0x2083 | | * | Queue Command and IO tracing | 0x302e | 0x3008 | * | DPC Thread | 0x401c | | diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 6ff7c3cbd0b..82a33533ed2 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -303,7 +303,15 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp) if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) && !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) && !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) { - + if (IS_QLA82XX(ha)) { + ql_dbg(ql_dbg_mbx, vha, 0x112a, + "disabling pause transmit on port " + "0 & 1.\n"); + qla82xx_wr_32(ha, + QLA82XX_CRB_NIU + 0x98, + CRB_NIU_XG_PAUSE_CTL_P0| + CRB_NIU_XG_PAUSE_CTL_P1); + } ql_log(ql_log_info, base_vha, 0x101c, "Mailbox cmd timeout occured. " "Scheduling ISP abort eeh_busy=0x%x.\n", @@ -319,7 +327,15 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp) if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) && !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) && !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) { - + if (IS_QLA82XX(ha)) { + ql_dbg(ql_dbg_mbx, vha, 0x112b, + "disabling pause transmit on port " + "0 & 1.\n"); + qla82xx_wr_32(ha, + QLA82XX_CRB_NIU + 0x98, + CRB_NIU_XG_PAUSE_CTL_P0| + CRB_NIU_XG_PAUSE_CTL_P1); + } ql_log(ql_log_info, base_vha, 0x101e, "Mailbox cmd timeout occured. " "Scheduling ISP abort.\n"); diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c index 54246f93466..03554934b0a 100644 --- a/drivers/scsi/qla2xxx/qla_nx.c +++ b/drivers/scsi/qla2xxx/qla_nx.c @@ -3853,9 +3853,13 @@ void qla82xx_watchdog(scsi_qla_host_t *vha) qla2xxx_wake_dpc(vha); } else { if (qla82xx_check_fw_alive(vha)) { + ql_dbg(ql_dbg_timer, vha, 0x6011, + "disabling pause transmit on port 0 & 1.\n"); + qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, + CRB_NIU_XG_PAUSE_CTL_P0|CRB_NIU_XG_PAUSE_CTL_P1); halt_status = qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS1); - ql_dbg(ql_dbg_timer, vha, 0x6005, + ql_log(ql_log_info, vha, 0x6005, "dumping hw/fw registers:.\n " " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n " " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n " diff --git a/drivers/scsi/qla2xxx/qla_nx.h b/drivers/scsi/qla2xxx/qla_nx.h index 57820c199bc..57a226be339 100644 --- a/drivers/scsi/qla2xxx/qla_nx.h +++ b/drivers/scsi/qla2xxx/qla_nx.h @@ -1173,4 +1173,8 @@ struct qla82xx_md_entry_queue { static const int MD_MIU_TEST_AGT_RDDATA[] = { 0x410000A8, 0x410000AC, 0x410000B8, 0x410000BC }; + +#define CRB_NIU_XG_PAUSE_CTL_P0 0x1 +#define CRB_NIU_XG_PAUSE_CTL_P1 0x8 + #endif -- cgit v1.2.3 From 49e85c23beb1f12aba59450126ff7e803fbc767d Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Fri, 18 Nov 2011 09:02:20 -0800 Subject: [SCSI] qla2xxx: Correct fc_host port_state display. [jejb: checkpatch fixes] Add more fine grain parsing of vha->loop_state to export a more accurate fc_host port_state. Signed-off-by: Saurav Kashyap Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_attr.c | 27 +++++++++++++++++++++++---- 1 file changed, 23 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index ac326c41e93..6465dae5883 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -1762,12 +1762,31 @@ qla2x00_get_host_port_state(struct Scsi_Host *shost) scsi_qla_host_t *vha = shost_priv(shost); struct scsi_qla_host *base_vha = pci_get_drvdata(vha->hw->pdev); - if (!base_vha->flags.online) + if (!base_vha->flags.online) { fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; - else if (atomic_read(&base_vha->loop_state) == LOOP_TIMEOUT) - fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; - else + return; + } + + switch (atomic_read(&base_vha->loop_state)) { + case LOOP_UPDATE: + fc_host_port_state(shost) = FC_PORTSTATE_DIAGNOSTICS; + break; + case LOOP_DOWN: + if (test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags)) + fc_host_port_state(shost) = FC_PORTSTATE_DIAGNOSTICS; + else + fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; + break; + case LOOP_DEAD: + fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; + break; + case LOOP_READY: fc_host_port_state(shost) = FC_PORTSTATE_ONLINE; + break; + default: + fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; + break; + } } static int -- cgit v1.2.3 From 0d2aa38ee9b11be35ef6f91c938dd3441cf64ea4 Mon Sep 17 00:00:00 2001 From: Giridhar Malavali Date: Fri, 18 Nov 2011 09:02:21 -0800 Subject: [SCSI] qla2xxx: Submit all chained IOCBs for passthrough commands on request queue 0. Signed-off-by: Giridhar Malavali Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_iocb.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index dbec89622a0..a4b267e60a3 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -120,11 +120,10 @@ qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) * Returns a pointer to the continuation type 1 IOCB packet. */ static inline cont_a64_entry_t * -qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha) +qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req) { cont_a64_entry_t *cont_pkt; - struct req_que *req = vha->req; /* Adjust ring index. */ req->ring_index++; if (req->ring_index == req->length) { @@ -292,7 +291,7 @@ void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, * Five DSDs are available in the Continuation * Type 1 IOCB. */ - cont_pkt = qla2x00_prep_cont_type1_iocb(vha); + cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; avail_dsds = 5; } @@ -684,7 +683,7 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, * Five DSDs are available in the Continuation * Type 1 IOCB. */ - cont_pkt = qla2x00_prep_cont_type1_iocb(vha); + cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; avail_dsds = 5; } @@ -2070,7 +2069,8 @@ qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) * Five DSDs are available in the Cont. * Type 1 IOCB. */ - cont_pkt = qla2x00_prep_cont_type1_iocb(vha); + cont_pkt = qla2x00_prep_cont_type1_iocb(vha, + vha->hw->req_q_map[0]); cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; avail_dsds = 5; cont_iocb_prsnt = 1; @@ -2096,6 +2096,7 @@ qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) int index; uint16_t tot_dsds; scsi_qla_host_t *vha = sp->fcport->vha; + struct qla_hw_data *ha = vha->hw; struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job; int loop_iterartion = 0; int cont_iocb_prsnt = 0; @@ -2141,7 +2142,8 @@ qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) * Five DSDs are available in the Cont. * Type 1 IOCB. */ - cont_pkt = qla2x00_prep_cont_type1_iocb(vha); + cont_pkt = qla2x00_prep_cont_type1_iocb(vha, + ha->req_q_map[0]); cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; avail_dsds = 5; cont_iocb_prsnt = 1; -- cgit v1.2.3 From 09b4402d2c8e36b8d4270c4da235fd7bb312118d Mon Sep 17 00:00:00 2001 From: Chad Dupuis Date: Fri, 18 Nov 2011 09:02:22 -0800 Subject: [SCSI] qla2xxx: Update version number to 8.03.07.12-k. Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h index 13b6357c1fa..23f33a6d52d 100644 --- a/drivers/scsi/qla2xxx/qla_version.h +++ b/drivers/scsi/qla2xxx/qla_version.h @@ -7,7 +7,7 @@ /* * Driver version */ -#define QLA2XXX_VERSION "8.03.07.07-k" +#define QLA2XXX_VERSION "8.03.07.12-k" #define QLA_DRIVER_MAJOR_VER 8 #define QLA_DRIVER_MINOR_VER 3 -- cgit v1.2.3 From f44b915d315ff0a7dd362c5c0eac5fbde4cc4411 Mon Sep 17 00:00:00 2001 From: Yu Xu Date: Sat, 10 Dec 2011 00:03:33 +0800 Subject: usb: gadget: storage: release superspeed descriptors. Release superspeed mass storage descriptors memory when the function is unbind. Signed-off-by: Yu Xu Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi --- drivers/usb/gadget/f_mass_storage.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index c39d58860fa..1a6f415c0d0 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -2975,6 +2975,7 @@ static void fsg_unbind(struct usb_configuration *c, struct usb_function *f) fsg_common_put(common); usb_free_descriptors(fsg->function.descriptors); usb_free_descriptors(fsg->function.hs_descriptors); + usb_free_descriptors(fsg->function.ss_descriptors); kfree(fsg); } -- cgit v1.2.3 From b95eb7476e7224baae34f67ae9a09042521e97ff Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 8 Dec 2011 18:23:56 -0800 Subject: usb: renesas_usbhs: typofix: irq_dtch control DTCHE Signed-off-by: Kuninori Morimoto Signed-off-by: Felipe Balbi --- drivers/usb/renesas_usbhs/mod.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c index 053f86d7000..ad96a389672 100644 --- a/drivers/usb/renesas_usbhs/mod.c +++ b/drivers/usb/renesas_usbhs/mod.c @@ -349,7 +349,7 @@ void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod) if (mod->irq_attch) intenb1 |= ATTCHE; - if (mod->irq_attch) + if (mod->irq_dtch) intenb1 |= DTCHE; if (mod->irq_sign) -- cgit v1.2.3 From 1115b9e279a23ca0bf7eda7d7697fe20a441304e Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 8 Dec 2011 18:24:47 -0800 Subject: usb: renesas_usbhs: add hcd->has_tt for low/full speed Low/Full speed device is not recognized without this patch Signed-off-by: Kuninori Morimoto Signed-off-by: Felipe Balbi --- drivers/usb/renesas_usbhs/mod_host.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c index bade761a1e5..7955de58995 100644 --- a/drivers/usb/renesas_usbhs/mod_host.c +++ b/drivers/usb/renesas_usbhs/mod_host.c @@ -1267,6 +1267,7 @@ int usbhs_mod_host_probe(struct usbhs_priv *priv) dev_err(dev, "Failed to create hcd\n"); return -ENOMEM; } + hcd->has_tt = 1; /* for low/full speed */ pipe_info = kzalloc(sizeof(*pipe_info) * pipe_size, GFP_KERNEL); if (!pipe_info) { -- cgit v1.2.3 From b302545744c031eae04a43fb1c56cc17e00a193a Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 12 Dec 2011 12:42:12 +0100 Subject: block/swim3: Locking fixes The old PowerMac swim3 driver has some "interesting" locking issues, using a private lock and failing to lock the queue before completing requests, which triggered WARN_ONs among others. This rips out the private lock, makes everything operate under the block queue lock, and generally makes things simpler. We used to also share a queue between the two possible instances which was problematic since we might pick the wrong controller in some cases, so make the queue and the current request per-instance and use queuedata to point to our private data which is a lot cleaner. We still share the queue lock but then, it's nearly impossible to actually use 2 swim3's simultaneously: one would need to have a Wallstreet PowerBook, the only machine afaik with two of these on the motherboard, and populate both hotswap bays with a floppy drive (the machine ships only with one), so nobody cares... While at it, add a little fix to clear up stale interrupts when loading the driver or plugging a floppy drive in a bay. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Jens Axboe --- drivers/block/swim3.c | 362 ++++++++++++++++++++++++++++++-------------------- 1 file changed, 215 insertions(+), 147 deletions(-) diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c index ae3e167e17a..89ddab127e3 100644 --- a/drivers/block/swim3.c +++ b/drivers/block/swim3.c @@ -16,6 +16,8 @@ * handle GCR disks */ +#undef DEBUG + #include #include #include @@ -36,13 +38,11 @@ #include #include -static DEFINE_MUTEX(swim3_mutex); -static struct request_queue *swim3_queue; -static struct gendisk *disks[2]; -static struct request *fd_req; - #define MAX_FLOPPIES 2 +static DEFINE_MUTEX(swim3_mutex); +static struct gendisk *disks[MAX_FLOPPIES]; + enum swim_state { idle, locating, @@ -177,7 +177,6 @@ struct swim3 { struct floppy_state { enum swim_state state; - spinlock_t lock; struct swim3 __iomem *swim3; /* hardware registers */ struct dbdma_regs __iomem *dma; /* DMA controller registers */ int swim3_intr; /* interrupt number for SWIM3 */ @@ -204,8 +203,20 @@ struct floppy_state { int wanted; struct macio_dev *mdev; char dbdma_cmd_space[5 * sizeof(struct dbdma_cmd)]; + int index; + struct request *cur_req; }; +#define swim3_err(fmt, arg...) dev_err(&fs->mdev->ofdev.dev, "[fd%d] " fmt, fs->index, arg) +#define swim3_warn(fmt, arg...) dev_warn(&fs->mdev->ofdev.dev, "[fd%d] " fmt, fs->index, arg) +#define swim3_info(fmt, arg...) dev_info(&fs->mdev->ofdev.dev, "[fd%d] " fmt, fs->index, arg) + +#ifdef DEBUG +#define swim3_dbg(fmt, arg...) dev_dbg(&fs->mdev->ofdev.dev, "[fd%d] " fmt, fs->index, arg) +#else +#define swim3_dbg(fmt, arg...) do { } while(0) +#endif + static struct floppy_state floppy_states[MAX_FLOPPIES]; static int floppy_count = 0; static DEFINE_SPINLOCK(swim3_lock); @@ -224,17 +235,8 @@ static unsigned short write_postamble[] = { 0, 0, 0, 0, 0, 0 }; -static void swim3_select(struct floppy_state *fs, int sel); -static void swim3_action(struct floppy_state *fs, int action); -static int swim3_readbit(struct floppy_state *fs, int bit); -static void do_fd_request(struct request_queue * q); -static void start_request(struct floppy_state *fs); -static void set_timeout(struct floppy_state *fs, int nticks, - void (*proc)(unsigned long)); -static void scan_track(struct floppy_state *fs); static void seek_track(struct floppy_state *fs, int n); static void init_dma(struct dbdma_cmd *cp, int cmd, void *buf, int count); -static void setup_transfer(struct floppy_state *fs); static void act(struct floppy_state *fs); static void scan_timeout(unsigned long data); static void seek_timeout(unsigned long data); @@ -254,18 +256,21 @@ static unsigned int floppy_check_events(struct gendisk *disk, unsigned int clearing); static int floppy_revalidate(struct gendisk *disk); -static bool swim3_end_request(int err, unsigned int nr_bytes) +static bool swim3_end_request(struct floppy_state *fs, int err, unsigned int nr_bytes) { - if (__blk_end_request(fd_req, err, nr_bytes)) - return true; + struct request *req = fs->cur_req; + int rc; - fd_req = NULL; - return false; -} + swim3_dbg(" end request, err=%d nr_bytes=%d, cur_req=%p\n", + err, nr_bytes, req); -static bool swim3_end_request_cur(int err) -{ - return swim3_end_request(err, blk_rq_cur_bytes(fd_req)); + if (err) + nr_bytes = blk_rq_cur_bytes(req); + rc = __blk_end_request(req, err, nr_bytes); + if (rc) + return true; + fs->cur_req = NULL; + return false; } static void swim3_select(struct floppy_state *fs, int sel) @@ -303,50 +308,53 @@ static int swim3_readbit(struct floppy_state *fs, int bit) return (stat & DATA) == 0; } -static void do_fd_request(struct request_queue * q) -{ - int i; - - for(i=0; imdev->media_bay && - check_media_bay(fs->mdev->media_bay) != MB_FD) - continue; - start_request(fs); - } -} - static void start_request(struct floppy_state *fs) { struct request *req; unsigned long x; + swim3_dbg("start request, initial state=%d\n", fs->state); + if (fs->state == idle && fs->wanted) { fs->state = available; wake_up(&fs->wait); return; } while (fs->state == idle) { - if (!fd_req) { - fd_req = blk_fetch_request(swim3_queue); - if (!fd_req) + swim3_dbg("start request, idle loop, cur_req=%p\n", fs->cur_req); + if (!fs->cur_req) { + fs->cur_req = blk_fetch_request(disks[fs->index]->queue); + swim3_dbg(" fetched request %p\n", fs->cur_req); + if (!fs->cur_req) break; } - req = fd_req; -#if 0 - printk("do_fd_req: dev=%s cmd=%d sec=%ld nr_sec=%u buf=%p\n", - req->rq_disk->disk_name, req->cmd, - (long)blk_rq_pos(req), blk_rq_sectors(req), req->buffer); - printk(" errors=%d current_nr_sectors=%u\n", - req->errors, blk_rq_cur_sectors(req)); + req = fs->cur_req; + + if (fs->mdev->media_bay && + check_media_bay(fs->mdev->media_bay) != MB_FD) { + swim3_dbg("%s", " media bay absent, dropping req\n"); + swim3_end_request(fs, -ENODEV, 0); + continue; + } + +#if 0 /* This is really too verbose */ + swim3_dbg("do_fd_req: dev=%s cmd=%d sec=%ld nr_sec=%u buf=%p\n", + req->rq_disk->disk_name, req->cmd, + (long)blk_rq_pos(req), blk_rq_sectors(req), + req->buffer); + swim3_dbg(" errors=%d current_nr_sectors=%u\n", + req->errors, blk_rq_cur_sectors(req)); #endif if (blk_rq_pos(req) >= fs->total_secs) { - swim3_end_request_cur(-EIO); + swim3_dbg(" pos out of bounds (%ld, max is %ld)\n", + (long)blk_rq_pos(req), (long)fs->total_secs); + swim3_end_request(fs, -EIO, 0); continue; } if (fs->ejected) { - swim3_end_request_cur(-EIO); + swim3_dbg("%s", " disk ejected\n"); + swim3_end_request(fs, -EIO, 0); continue; } @@ -354,7 +362,8 @@ static void start_request(struct floppy_state *fs) if (fs->write_prot < 0) fs->write_prot = swim3_readbit(fs, WRITE_PROT); if (fs->write_prot) { - swim3_end_request_cur(-EIO); + swim3_dbg("%s", " try to write, disk write protected\n"); + swim3_end_request(fs, -EIO, 0); continue; } } @@ -369,7 +378,6 @@ static void start_request(struct floppy_state *fs) x = ((long)blk_rq_pos(req)) % fs->secpercyl; fs->head = x / fs->secpertrack; fs->req_sector = x % fs->secpertrack + 1; - fd_req = req; fs->state = do_transfer; fs->retries = 0; @@ -377,12 +385,14 @@ static void start_request(struct floppy_state *fs) } } +static void do_fd_request(struct request_queue * q) +{ + start_request(q->queuedata); +} + static void set_timeout(struct floppy_state *fs, int nticks, void (*proc)(unsigned long)) { - unsigned long flags; - - spin_lock_irqsave(&fs->lock, flags); if (fs->timeout_pending) del_timer(&fs->timeout); fs->timeout.expires = jiffies + nticks; @@ -390,7 +400,6 @@ static void set_timeout(struct floppy_state *fs, int nticks, fs->timeout.data = (unsigned long) fs; add_timer(&fs->timeout); fs->timeout_pending = 1; - spin_unlock_irqrestore(&fs->lock, flags); } static inline void scan_track(struct floppy_state *fs) @@ -442,40 +451,45 @@ static inline void setup_transfer(struct floppy_state *fs) struct swim3 __iomem *sw = fs->swim3; struct dbdma_cmd *cp = fs->dma_cmd; struct dbdma_regs __iomem *dr = fs->dma; + struct request *req = fs->cur_req; - if (blk_rq_cur_sectors(fd_req) <= 0) { - printk(KERN_ERR "swim3: transfer 0 sectors?\n"); + if (blk_rq_cur_sectors(req) <= 0) { + swim3_warn("%s", "Transfer 0 sectors ?\n"); return; } - if (rq_data_dir(fd_req) == WRITE) + if (rq_data_dir(req) == WRITE) n = 1; else { n = fs->secpertrack - fs->req_sector + 1; - if (n > blk_rq_cur_sectors(fd_req)) - n = blk_rq_cur_sectors(fd_req); + if (n > blk_rq_cur_sectors(req)) + n = blk_rq_cur_sectors(req); } + + swim3_dbg(" setup xfer at sect %d (of %d) head %d for %d\n", + fs->req_sector, fs->secpertrack, fs->head, n); + fs->scount = n; swim3_select(fs, fs->head? READ_DATA_1: READ_DATA_0); out_8(&sw->sector, fs->req_sector); out_8(&sw->nsect, n); out_8(&sw->gap3, 0); out_le32(&dr->cmdptr, virt_to_bus(cp)); - if (rq_data_dir(fd_req) == WRITE) { + if (rq_data_dir(req) == WRITE) { /* Set up 3 dma commands: write preamble, data, postamble */ init_dma(cp, OUTPUT_MORE, write_preamble, sizeof(write_preamble)); ++cp; - init_dma(cp, OUTPUT_MORE, fd_req->buffer, 512); + init_dma(cp, OUTPUT_MORE, req->buffer, 512); ++cp; init_dma(cp, OUTPUT_LAST, write_postamble, sizeof(write_postamble)); } else { - init_dma(cp, INPUT_LAST, fd_req->buffer, n * 512); + init_dma(cp, INPUT_LAST, req->buffer, n * 512); } ++cp; out_le16(&cp->command, DBDMA_STOP); out_8(&sw->control_bic, DO_ACTION | WRITE_SECTORS); in_8(&sw->error); out_8(&sw->control_bic, DO_ACTION | WRITE_SECTORS); - if (rq_data_dir(fd_req) == WRITE) + if (rq_data_dir(req) == WRITE) out_8(&sw->control_bis, WRITE_SECTORS); in_8(&sw->intr); out_le32(&dr->control, (RUN << 16) | RUN); @@ -488,12 +502,16 @@ static inline void setup_transfer(struct floppy_state *fs) static void act(struct floppy_state *fs) { for (;;) { + swim3_dbg(" act loop, state=%d, req_cyl=%d, cur_cyl=%d\n", + fs->state, fs->req_cyl, fs->cur_cyl); + switch (fs->state) { case idle: return; /* XXX shouldn't get here */ case locating: if (swim3_readbit(fs, TRACK_ZERO)) { + swim3_dbg("%s", " locate track 0\n"); fs->cur_cyl = 0; if (fs->req_cyl == 0) fs->state = do_transfer; @@ -511,7 +529,7 @@ static void act(struct floppy_state *fs) break; } if (fs->req_cyl == fs->cur_cyl) { - printk("whoops, seeking 0\n"); + swim3_warn("%s", "Whoops, seeking 0\n"); fs->state = do_transfer; break; } @@ -527,7 +545,9 @@ static void act(struct floppy_state *fs) case do_transfer: if (fs->cur_cyl != fs->req_cyl) { if (fs->retries > 5) { - swim3_end_request_cur(-EIO); + swim3_err("Wrong cylinder in transfer, want: %d got %d\n", + fs->req_cyl, fs->cur_cyl); + swim3_end_request(fs, -EIO, 0); fs->state = idle; return; } @@ -542,7 +562,7 @@ static void act(struct floppy_state *fs) return; default: - printk(KERN_ERR"swim3: unknown state %d\n", fs->state); + swim3_err("Unknown state %d\n", fs->state); return; } } @@ -552,59 +572,75 @@ static void scan_timeout(unsigned long data) { struct floppy_state *fs = (struct floppy_state *) data; struct swim3 __iomem *sw = fs->swim3; + unsigned long flags; + + swim3_dbg("* scan timeout, state=%d\n", fs->state); + spin_lock_irqsave(&swim3_lock, flags); fs->timeout_pending = 0; out_8(&sw->control_bic, DO_ACTION | WRITE_SECTORS); out_8(&sw->select, RELAX); out_8(&sw->intr_enable, 0); fs->cur_cyl = -1; if (fs->retries > 5) { - swim3_end_request_cur(-EIO); + swim3_end_request(fs, -EIO, 0); fs->state = idle; start_request(fs); } else { fs->state = jogging; act(fs); } + spin_unlock_irqrestore(&swim3_lock, flags); } static void seek_timeout(unsigned long data) { struct floppy_state *fs = (struct floppy_state *) data; struct swim3 __iomem *sw = fs->swim3; + unsigned long flags; + + swim3_dbg("* seek timeout, state=%d\n", fs->state); + spin_lock_irqsave(&swim3_lock, flags); fs->timeout_pending = 0; out_8(&sw->control_bic, DO_SEEK); out_8(&sw->select, RELAX); out_8(&sw->intr_enable, 0); - printk(KERN_ERR "swim3: seek timeout\n"); - swim3_end_request_cur(-EIO); + swim3_err("%s", "Seek timeout\n"); + swim3_end_request(fs, -EIO, 0); fs->state = idle; start_request(fs); + spin_unlock_irqrestore(&swim3_lock, flags); } static void settle_timeout(unsigned long data) { struct floppy_state *fs = (struct floppy_state *) data; struct swim3 __iomem *sw = fs->swim3; + unsigned long flags; + + swim3_dbg("* settle timeout, state=%d\n", fs->state); + spin_lock_irqsave(&swim3_lock, flags); fs->timeout_pending = 0; if (swim3_readbit(fs, SEEK_COMPLETE)) { out_8(&sw->select, RELAX); fs->state = locating; act(fs); - return; + goto unlock; } out_8(&sw->select, RELAX); if (fs->settle_time < 2*HZ) { ++fs->settle_time; set_timeout(fs, 1, settle_timeout); - return; + goto unlock; } - printk(KERN_ERR "swim3: seek settle timeout\n"); - swim3_end_request_cur(-EIO); + swim3_err("%s", "Seek settle timeout\n"); + swim3_end_request(fs, -EIO, 0); fs->state = idle; start_request(fs); + unlock: + spin_unlock_irqrestore(&swim3_lock, flags); } static void xfer_timeout(unsigned long data) @@ -612,8 +648,12 @@ static void xfer_timeout(unsigned long data) struct floppy_state *fs = (struct floppy_state *) data; struct swim3 __iomem *sw = fs->swim3; struct dbdma_regs __iomem *dr = fs->dma; + unsigned long flags; int n; + swim3_dbg("* xfer timeout, state=%d\n", fs->state); + + spin_lock_irqsave(&swim3_lock, flags); fs->timeout_pending = 0; out_le32(&dr->control, RUN << 16); /* We must wait a bit for dbdma to stop */ @@ -622,12 +662,13 @@ static void xfer_timeout(unsigned long data) out_8(&sw->intr_enable, 0); out_8(&sw->control_bic, WRITE_SECTORS | DO_ACTION); out_8(&sw->select, RELAX); - printk(KERN_ERR "swim3: timeout %sing sector %ld\n", - (rq_data_dir(fd_req)==WRITE? "writ": "read"), - (long)blk_rq_pos(fd_req)); - swim3_end_request_cur(-EIO); + swim3_err("Timeout %sing sector %ld\n", + (rq_data_dir(fs->cur_req)==WRITE? "writ": "read"), + (long)blk_rq_pos(fs->cur_req)); + swim3_end_request(fs, -EIO, 0); fs->state = idle; start_request(fs); + spin_unlock_irqrestore(&swim3_lock, flags); } static irqreturn_t swim3_interrupt(int irq, void *dev_id) @@ -638,12 +679,17 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id) int stat, resid; struct dbdma_regs __iomem *dr; struct dbdma_cmd *cp; + unsigned long flags; + struct request *req = fs->cur_req; + + swim3_dbg("* interrupt, state=%d\n", fs->state); + spin_lock_irqsave(&swim3_lock, flags); intr = in_8(&sw->intr); err = (intr & ERROR_INTR)? in_8(&sw->error): 0; if ((intr & ERROR_INTR) && fs->state != do_transfer) - printk(KERN_ERR "swim3_interrupt, state=%d, dir=%x, intr=%x, err=%x\n", - fs->state, rq_data_dir(fd_req), intr, err); + swim3_err("Non-transfer error interrupt: state=%d, dir=%x, intr=%x, err=%x\n", + fs->state, rq_data_dir(req), intr, err); switch (fs->state) { case locating: if (intr & SEEN_SECTOR) { @@ -653,10 +699,10 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id) del_timer(&fs->timeout); fs->timeout_pending = 0; if (sw->ctrack == 0xff) { - printk(KERN_ERR "swim3: seen sector but cyl=ff?\n"); + swim3_err("%s", "Seen sector but cyl=ff?\n"); fs->cur_cyl = -1; if (fs->retries > 5) { - swim3_end_request_cur(-EIO); + swim3_end_request(fs, -EIO, 0); fs->state = idle; start_request(fs); } else { @@ -668,8 +714,8 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id) fs->cur_cyl = sw->ctrack; fs->cur_sector = sw->csect; if (fs->expect_cyl != -1 && fs->expect_cyl != fs->cur_cyl) - printk(KERN_ERR "swim3: expected cyl %d, got %d\n", - fs->expect_cyl, fs->cur_cyl); + swim3_err("Expected cyl %d, got %d\n", + fs->expect_cyl, fs->cur_cyl); fs->state = do_transfer; act(fs); } @@ -704,7 +750,7 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id) fs->timeout_pending = 0; dr = fs->dma; cp = fs->dma_cmd; - if (rq_data_dir(fd_req) == WRITE) + if (rq_data_dir(req) == WRITE) ++cp; /* * Check that the main data transfer has finished. @@ -729,31 +775,32 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id) if (intr & ERROR_INTR) { n = fs->scount - 1 - resid / 512; if (n > 0) { - blk_update_request(fd_req, 0, n << 9); + blk_update_request(req, 0, n << 9); fs->req_sector += n; } if (fs->retries < 5) { ++fs->retries; act(fs); } else { - printk("swim3: error %sing block %ld (err=%x)\n", - rq_data_dir(fd_req) == WRITE? "writ": "read", - (long)blk_rq_pos(fd_req), err); - swim3_end_request_cur(-EIO); + swim3_err("Error %sing block %ld (err=%x)\n", + rq_data_dir(req) == WRITE? "writ": "read", + (long)blk_rq_pos(req), err); + swim3_end_request(fs, -EIO, 0); fs->state = idle; } } else { if ((stat & ACTIVE) == 0 || resid != 0) { /* musta been an error */ - printk(KERN_ERR "swim3: fd dma: stat=%x resid=%d\n", stat, resid); - printk(KERN_ERR " state=%d, dir=%x, intr=%x, err=%x\n", - fs->state, rq_data_dir(fd_req), intr, err); - swim3_end_request_cur(-EIO); + swim3_err("fd dma error: stat=%x resid=%d\n", stat, resid); + swim3_err(" state=%d, dir=%x, intr=%x, err=%x\n", + fs->state, rq_data_dir(req), intr, err); + swim3_end_request(fs, -EIO, 0); fs->state = idle; start_request(fs); break; } - if (swim3_end_request(0, fs->scount << 9)) { + fs->retries = 0; + if (swim3_end_request(fs, 0, fs->scount << 9)) { fs->req_sector += fs->scount; if (fs->req_sector > fs->secpertrack) { fs->req_sector -= fs->secpertrack; @@ -770,8 +817,9 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id) start_request(fs); break; default: - printk(KERN_ERR "swim3: don't know what to do in state %d\n", fs->state); + swim3_err("Don't know what to do in state %d\n", fs->state); } + spin_unlock_irqrestore(&swim3_lock, flags); return IRQ_HANDLED; } @@ -781,26 +829,31 @@ static void fd_dma_interrupt(int irq, void *dev_id) } */ +/* Called under the mutex to grab exclusive access to a drive */ static int grab_drive(struct floppy_state *fs, enum swim_state state, int interruptible) { unsigned long flags; - spin_lock_irqsave(&fs->lock, flags); - if (fs->state != idle) { + swim3_dbg("%s", "-> grab drive\n"); + + spin_lock_irqsave(&swim3_lock, flags); + if (fs->state != idle && fs->state != available) { ++fs->wanted; while (fs->state != available) { + spin_unlock_irqrestore(&swim3_lock, flags); if (interruptible && signal_pending(current)) { --fs->wanted; - spin_unlock_irqrestore(&fs->lock, flags); return -EINTR; } interruptible_sleep_on(&fs->wait); + spin_lock_irqsave(&swim3_lock, flags); } --fs->wanted; } fs->state = state; - spin_unlock_irqrestore(&fs->lock, flags); + spin_unlock_irqrestore(&swim3_lock, flags); + return 0; } @@ -808,10 +861,12 @@ static void release_drive(struct floppy_state *fs) { unsigned long flags; - spin_lock_irqsave(&fs->lock, flags); + swim3_dbg("%s", "-> release drive\n"); + + spin_lock_irqsave(&swim3_lock, flags); fs->state = idle; start_request(fs); - spin_unlock_irqrestore(&fs->lock, flags); + spin_unlock_irqrestore(&swim3_lock, flags); } static int fd_eject(struct floppy_state *fs) @@ -966,6 +1021,7 @@ static int floppy_release(struct gendisk *disk, fmode_t mode) { struct floppy_state *fs = disk->private_data; struct swim3 __iomem *sw = fs->swim3; + mutex_lock(&swim3_mutex); if (fs->ref_count > 0 && --fs->ref_count == 0) { swim3_action(fs, MOTOR_OFF); @@ -1031,30 +1087,48 @@ static const struct block_device_operations floppy_fops = { .revalidate_disk= floppy_revalidate, }; +static void swim3_mb_event(struct macio_dev* mdev, int mb_state) +{ + struct floppy_state *fs = macio_get_drvdata(mdev); + struct swim3 __iomem *sw = fs->swim3; + + if (!fs) + return; + if (mb_state != MB_FD) + return; + + /* Clear state */ + out_8(&sw->intr_enable, 0); + in_8(&sw->intr); + in_8(&sw->error); +} + static int swim3_add_device(struct macio_dev *mdev, int index) { struct device_node *swim = mdev->ofdev.dev.of_node; struct floppy_state *fs = &floppy_states[index]; int rc = -EBUSY; + /* Do this first for message macros */ + memset(fs, 0, sizeof(*fs)); + fs->mdev = mdev; + fs->index = index; + /* Check & Request resources */ if (macio_resource_count(mdev) < 2) { - printk(KERN_WARNING "ifd%d: no address for %s\n", - index, swim->full_name); + swim3_err("%s", "No address in device-tree\n"); return -ENXIO; } - if (macio_irq_count(mdev) < 2) { - printk(KERN_WARNING "fd%d: no intrs for device %s\n", - index, swim->full_name); + if (macio_irq_count(mdev) < 1) { + swim3_err("%s", "No interrupt in device-tree\n"); + return -ENXIO; } if (macio_request_resource(mdev, 0, "swim3 (mmio)")) { - printk(KERN_ERR "fd%d: can't request mmio resource for %s\n", - index, swim->full_name); + swim3_err("%s", "Can't request mmio resource\n"); return -EBUSY; } if (macio_request_resource(mdev, 1, "swim3 (dma)")) { - printk(KERN_ERR "fd%d: can't request dma resource for %s\n", - index, swim->full_name); + swim3_err("%s", "Can't request dma resource\n"); macio_release_resource(mdev, 0); return -EBUSY; } @@ -1063,22 +1137,18 @@ static int swim3_add_device(struct macio_dev *mdev, int index) if (mdev->media_bay == NULL) pmac_call_feature(PMAC_FTR_SWIM3_ENABLE, swim, 0, 1); - memset(fs, 0, sizeof(*fs)); - spin_lock_init(&fs->lock); fs->state = idle; fs->swim3 = (struct swim3 __iomem *) ioremap(macio_resource_start(mdev, 0), 0x200); if (fs->swim3 == NULL) { - printk("fd%d: couldn't map registers for %s\n", - index, swim->full_name); + swim3_err("%s", "Couldn't map mmio registers\n"); rc = -ENOMEM; goto out_release; } fs->dma = (struct dbdma_regs __iomem *) ioremap(macio_resource_start(mdev, 1), 0x200); if (fs->dma == NULL) { - printk("fd%d: couldn't map DMA for %s\n", - index, swim->full_name); + swim3_err("%s", "Couldn't map dma registers\n"); iounmap(fs->swim3); rc = -ENOMEM; goto out_release; @@ -1090,31 +1160,25 @@ static int swim3_add_device(struct macio_dev *mdev, int index) fs->secpercyl = 36; fs->secpertrack = 18; fs->total_secs = 2880; - fs->mdev = mdev; init_waitqueue_head(&fs->wait); fs->dma_cmd = (struct dbdma_cmd *) DBDMA_ALIGN(fs->dbdma_cmd_space); memset(fs->dma_cmd, 0, 2 * sizeof(struct dbdma_cmd)); st_le16(&fs->dma_cmd[1].command, DBDMA_STOP); + if (mdev->media_bay == NULL || check_media_bay(mdev->media_bay) == MB_FD) + swim3_mb_event(mdev, MB_FD); + if (request_irq(fs->swim3_intr, swim3_interrupt, 0, "SWIM3", fs)) { - printk(KERN_ERR "fd%d: couldn't request irq %d for %s\n", - index, fs->swim3_intr, swim->full_name); + swim3_err("%s", "Couldn't request interrupt\n"); pmac_call_feature(PMAC_FTR_SWIM3_ENABLE, swim, 0, 0); goto out_unmap; return -EBUSY; } -/* - if (request_irq(fs->dma_intr, fd_dma_interrupt, 0, "SWIM3-dma", fs)) { - printk(KERN_ERR "Couldn't get irq %d for SWIM3 DMA", - fs->dma_intr); - return -EBUSY; - } -*/ init_timer(&fs->timeout); - printk(KERN_INFO "fd%d: SWIM3 floppy controller %s\n", floppy_count, + swim3_info("SWIM3 floppy controller %s\n", mdev->media_bay ? "in media bay" : ""); return 0; @@ -1132,41 +1196,42 @@ static int swim3_add_device(struct macio_dev *mdev, int index) static int __devinit swim3_attach(struct macio_dev *mdev, const struct of_device_id *match) { - int i, rc; struct gendisk *disk; + int index, rc; + + index = floppy_count++; + if (index >= MAX_FLOPPIES) + return -ENXIO; /* Add the drive */ - rc = swim3_add_device(mdev, floppy_count); + rc = swim3_add_device(mdev, index); if (rc) return rc; + /* Now register that disk. Same comment about failure handling */ + disk = disks[index] = alloc_disk(1); + if (disk == NULL) + return -ENOMEM; + disk->queue = blk_init_queue(do_fd_request, &swim3_lock); + if (disk->queue == NULL) { + put_disk(disk); + return -ENOMEM; + } + disk->queue->queuedata = &floppy_states[index]; - /* Now create the queue if not there yet */ - if (swim3_queue == NULL) { + if (index == 0) { /* If we failed, there isn't much we can do as the driver is still * too dumb to remove the device, just bail out */ if (register_blkdev(FLOPPY_MAJOR, "fd")) return 0; - swim3_queue = blk_init_queue(do_fd_request, &swim3_lock); - if (swim3_queue == NULL) { - unregister_blkdev(FLOPPY_MAJOR, "fd"); - return 0; - } } - /* Now register that disk. Same comment about failure handling */ - i = floppy_count++; - disk = disks[i] = alloc_disk(1); - if (disk == NULL) - return 0; - disk->major = FLOPPY_MAJOR; - disk->first_minor = i; + disk->first_minor = index; disk->fops = &floppy_fops; - disk->private_data = &floppy_states[i]; - disk->queue = swim3_queue; + disk->private_data = &floppy_states[index]; disk->flags |= GENHD_FL_REMOVABLE; - sprintf(disk->disk_name, "fd%d", i); + sprintf(disk->disk_name, "fd%d", index); set_capacity(disk, 2880); add_disk(disk); @@ -1194,6 +1259,9 @@ static struct macio_driver swim3_driver = .of_match_table = swim3_match, }, .probe = swim3_attach, +#ifdef CONFIG_PMAC_MEDIABAY + .mediabay_event = swim3_mb_event, +#endif #if 0 .suspend = swim3_suspend, .resume = swim3_resume, -- cgit v1.2.3 From b5a7e97039a80fae673ccc115ce595d5b88fb4ee Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 12 Dec 2011 10:53:02 -0500 Subject: ext4: fix ext4_end_io_dio() racing against fsync() We need to make sure iocb->private is cleared *before* we put the io_end structure on i_completed_io_list. Otherwise fsync() could potentially run on another CPU and free the iocb structure out from under us. Reported-by: Kent Overstreet Signed-off-by: "Theodore Ts'o" Cc: stable@kernel.org --- fs/ext4/inode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 848f436df29..d2c86633811 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2781,10 +2781,11 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset, iocb->private, io_end->inode->i_ino, iocb, offset, size); + iocb->private = NULL; + /* if not aio dio with unwritten extents, just free io and return */ if (!(io_end->flag & EXT4_IO_END_UNWRITTEN)) { ext4_free_io_end(io_end); - iocb->private = NULL; out: if (is_async) aio_complete(iocb, ret, 0); @@ -2807,7 +2808,6 @@ out: spin_unlock_irqrestore(&ei->i_completed_io_lock, flags); /* queue the work to convert unwritten extents to written */ - iocb->private = NULL; queue_work(wq, &io_end->work); /* XXX: probably should move into the real I/O completion handler */ -- cgit v1.2.3 From b4611abfa98af8351bf32e8b9ecc9d3384931c37 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Mon, 12 Dec 2011 11:00:56 -0500 Subject: ext4: Fix crash due to getting bogus eh_depth value on big-endian systems Commit 1939dd84b3 ("ext4: cleanup ext4_ext_grow_indepth code") added a reference to ext4_extent_header.eh_depth, but forget to pass the value read through le16_to_cpu. The result is a crash on big-endian machines, such as this crash on a POWER7 server: attempt to access beyond end of device sda8: rw=0, want=776392648163376, limit=168558560 Unable to handle kernel paging request for data at address 0x6b6b6b6b6b6b6bcb Faulting instruction address: 0xc0000000001f5f38 cpu 0x14: Vector: 300 (Data Access) at [c000001bd1aaecf0] pc: c0000000001f5f38: .__brelse+0x18/0x60 lr: c0000000002e07a4: .ext4_ext_drop_refs+0x44/0x80 sp: c000001bd1aaef70 msr: 9000000000009032 dar: 6b6b6b6b6b6b6bcb dsisr: 40000000 current = 0xc000001bd15b8010 paca = 0xc00000000ffe4600 pid = 19911, comm = flush-8:0 enter ? for help [c000001bd1aaeff0] c0000000002e07a4 .ext4_ext_drop_refs+0x44/0x80 [c000001bd1aaf090] c0000000002e0c58 .ext4_ext_find_extent+0x408/0x4c0 [c000001bd1aaf180] c0000000002e145c .ext4_ext_insert_extent+0x2bc/0x14c0 [c000001bd1aaf2c0] c0000000002e3fb8 .ext4_ext_map_blocks+0x628/0x1710 [c000001bd1aaf420] c0000000002b2974 .ext4_map_blocks+0x224/0x310 [c000001bd1aaf4d0] c0000000002b7f2c .mpage_da_map_and_submit+0xbc/0x490 [c000001bd1aaf5a0] c0000000002b8688 .write_cache_pages_da+0x2c8/0x430 [c000001bd1aaf720] c0000000002b8b28 .ext4_da_writepages+0x338/0x670 [c000001bd1aaf8d0] c000000000157280 .do_writepages+0x40/0x90 [c000001bd1aaf940] c0000000001ea830 .writeback_single_inode+0xe0/0x530 [c000001bd1aafa00] c0000000001eb680 .writeback_sb_inodes+0x210/0x300 [c000001bd1aafb20] c0000000001ebc84 .__writeback_inodes_wb+0xd4/0x140 [c000001bd1aafbe0] c0000000001ebfec .wb_writeback+0x2fc/0x3e0 [c000001bd1aafce0] c0000000001ed770 .wb_do_writeback+0x2f0/0x300 [c000001bd1aafdf0] c0000000001ed848 .bdi_writeback_thread+0xc8/0x340 [c000001bd1aafed0] c0000000000c5494 .kthread+0xb4/0xc0 [c000001bd1aaff90] c000000000021f48 .kernel_thread+0x54/0x70 This is due to getting ext_depth(inode) == 0x101 and therefore running off the end of the path array in ext4_ext_drop_refs into following unallocated structures. This fixes it by adding the necessary le16_to_cpu. Signed-off-by: Paul Mackerras Signed-off-by: "Theodore Ts'o" --- fs/ext4/extents.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 61fa9e1614a..61cdb97f338 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -1095,7 +1095,7 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode, le32_to_cpu(EXT_FIRST_INDEX(neh)->ei_block), ext4_idx_pblock(EXT_FIRST_INDEX(neh))); - neh->eh_depth = cpu_to_le16(neh->eh_depth + 1); + neh->eh_depth = cpu_to_le16(le16_to_cpu(neh->eh_depth) + 1); ext4_mark_inode_dirty(handle, inode); out: brelse(bh); -- cgit v1.2.3 From 0b57d7602b68f7b2786b2f0e22da39cbd4139a95 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 8 Dec 2011 08:04:12 -0500 Subject: hwmon: (jz4740) fix signedness bug wait_for_completion_interruptible_timeout() may return negative value. In this case, checking if (t > 0) will return true if t is unsigned. Signed-off-by: Axel Lin Acked-by: Lars-Peter Clausen Cc: stable@kernel.org (3.0+) Signed-off-by: Guenter Roeck --- drivers/hwmon/jz4740-hwmon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/jz4740-hwmon.c b/drivers/hwmon/jz4740-hwmon.c index 7a48b1eb423..3d7e590d57b 100644 --- a/drivers/hwmon/jz4740-hwmon.c +++ b/drivers/hwmon/jz4740-hwmon.c @@ -59,7 +59,7 @@ static ssize_t jz4740_hwmon_read_adcin(struct device *dev, { struct jz4740_hwmon *hwmon = dev_get_drvdata(dev); struct completion *completion = &hwmon->read_completion; - unsigned long t; + long t; unsigned long val; int ret; -- cgit v1.2.3 From d6c4f2ac1de3c1ee10796740aa5b7a1e98a05f07 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 8 Dec 2011 08:33:37 -0500 Subject: hwmon: (jz4740) Staticise jz4740_hwmon_driver It is not used outside this driver so no need to make the symbol global. Signed-off-by: Axel Lin Acked-by: Lars-Peter Clausen Signed-off-by: Guenter Roeck --- drivers/hwmon/jz4740-hwmon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/jz4740-hwmon.c b/drivers/hwmon/jz4740-hwmon.c index 3d7e590d57b..5253d23361d 100644 --- a/drivers/hwmon/jz4740-hwmon.c +++ b/drivers/hwmon/jz4740-hwmon.c @@ -203,7 +203,7 @@ static int __devexit jz4740_hwmon_remove(struct platform_device *pdev) return 0; } -struct platform_driver jz4740_hwmon_driver = { +static struct platform_driver jz4740_hwmon_driver = { .probe = jz4740_hwmon_probe, .remove = __devexit_p(jz4740_hwmon_remove), .driver = { -- cgit v1.2.3 From f1932fc1a6d899c754676b1dd8b17de93b052d43 Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Wed, 7 Dec 2011 09:10:26 -0800 Subject: crush: fix mapping calculation when force argument doesn't exist If the force argument isn't valid, we should continue calculating a mapping as if it weren't specified. Signed-off-by: Sage Weil --- net/ceph/crush/mapper.c | 35 +++++++++++++---------------------- 1 file changed, 13 insertions(+), 22 deletions(-) diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c index 42599e31dca..3a94eae7abe 100644 --- a/net/ceph/crush/mapper.c +++ b/net/ceph/crush/mapper.c @@ -477,7 +477,6 @@ int crush_do_rule(struct crush_map *map, int i, j; int numrep; int firstn; - int rc = -1; BUG_ON(ruleno >= map->max_rules); @@ -491,23 +490,18 @@ int crush_do_rule(struct crush_map *map, * that this may or may not correspond to the specific types * referenced by the crush rule. */ - if (force >= 0) { - if (force >= map->max_devices || - map->device_parents[force] == 0) { - /*dprintk("CRUSH: forcefed device dne\n");*/ - rc = -1; /* force fed device dne */ - goto out; - } - if (!is_out(map, weight, force, x)) { - while (1) { - force_context[++force_pos] = force; - if (force >= 0) - force = map->device_parents[force]; - else - force = map->bucket_parents[-1-force]; - if (force == 0) - break; - } + if (force >= 0 && + force < map->max_devices && + map->device_parents[force] != 0 && + !is_out(map, weight, force, x)) { + while (1) { + force_context[++force_pos] = force; + if (force >= 0) + force = map->device_parents[force]; + else + force = map->bucket_parents[-1-force]; + if (force == 0) + break; } } @@ -600,10 +594,7 @@ int crush_do_rule(struct crush_map *map, BUG_ON(1); } } - rc = result_len; - -out: - return rc; + return result_len; } -- cgit v1.2.3 From e1ad783b12ec8b69da83479c5d21a0d8180bc519 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Sun, 11 Dec 2011 16:12:42 -0800 Subject: Revert "x86, efi: Calling __pa() with an ioremap()ed address is invalid" This hangs my MacBook Air at boot time; I get no console messages at all. I reverted this on top of -rc5 and my machine boots again. This reverts commit e8c7106280a305e1ff2a3a8a4dfce141469fb039. Signed-off-by: Matt Fleming Signed-off-by: Keith Packard Acked-by: H. Peter Anvin Cc: Matthew Garrett Cc: Zhang Rui Cc: Huang Ying Cc: Linus Torvalds Cc: Andrew Morton Link: http://lkml.kernel.org/r/1321621751-3650-1-git-send-email-matt@console Signed-off-by: Ingo Molnar --- arch/x86/include/asm/e820.h | 8 -------- arch/x86/include/asm/efi.h | 5 +++++ arch/x86/kernel/e820.c | 3 +-- arch/x86/kernel/setup.c | 21 +-------------------- arch/x86/platform/efi/efi.c | 29 +++++++++++------------------ arch/x86/platform/efi/efi_64.c | 17 +++++++++++++++++ 6 files changed, 35 insertions(+), 48 deletions(-) diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h index c9547033e38..908b96957d8 100644 --- a/arch/x86/include/asm/e820.h +++ b/arch/x86/include/asm/e820.h @@ -53,13 +53,6 @@ */ #define E820_RESERVED_KERN 128 -/* - * Address ranges that need to be mapped by the kernel direct - * mapping. This is used to make sure regions such as - * EFI_RUNTIME_SERVICES_DATA are directly mapped. See setup_arch(). - */ -#define E820_RESERVED_EFI 129 - #ifndef __ASSEMBLY__ #include struct e820entry { @@ -122,7 +115,6 @@ static inline void early_memtest(unsigned long start, unsigned long end) } #endif -extern unsigned long e820_end_pfn(unsigned long limit_pfn, unsigned type); extern unsigned long e820_end_of_ram_pfn(void); extern unsigned long e820_end_of_low_ram_pfn(void); extern u64 early_reserve_e820(u64 startt, u64 sizet, u64 align); diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index b8d8bfcd44a..7093e4a6a0b 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -33,6 +33,8 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...); #define efi_call_virt6(f, a1, a2, a3, a4, a5, a6) \ efi_call_virt(f, a1, a2, a3, a4, a5, a6) +#define efi_ioremap(addr, size, type) ioremap_cache(addr, size) + #else /* !CONFIG_X86_32 */ extern u64 efi_call0(void *fp); @@ -82,6 +84,9 @@ extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3, efi_call6((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \ (u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6)) +extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size, + u32 type); + #endif /* CONFIG_X86_32 */ extern int add_efi_memmap; diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 65ffd110a81..303a0e48f07 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -135,7 +135,6 @@ static void __init e820_print_type(u32 type) printk(KERN_CONT "(usable)"); break; case E820_RESERVED: - case E820_RESERVED_EFI: printk(KERN_CONT "(reserved)"); break; case E820_ACPI: @@ -784,7 +783,7 @@ u64 __init early_reserve_e820(u64 startt, u64 sizet, u64 align) /* * Find the highest page frame number we have available */ -unsigned long __init e820_end_pfn(unsigned long limit_pfn, unsigned type) +static unsigned long __init e820_end_pfn(unsigned long limit_pfn, unsigned type) { int i; unsigned long last_pfn = 0; diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 9a9e40fb091..cf0ef986cb6 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -691,8 +691,6 @@ early_param("reservelow", parse_reservelow); void __init setup_arch(char **cmdline_p) { - unsigned long end_pfn; - #ifdef CONFIG_X86_32 memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data)); visws_early_detect(); @@ -934,24 +932,7 @@ void __init setup_arch(char **cmdline_p) init_gbpages(); /* max_pfn_mapped is updated here */ - end_pfn = max_low_pfn; - -#ifdef CONFIG_X86_64 - /* - * There may be regions after the last E820_RAM region that we - * want to include in the kernel direct mapping, such as - * EFI_RUNTIME_SERVICES_DATA. - */ - if (efi_enabled) { - unsigned long efi_end; - - efi_end = e820_end_pfn(MAXMEM>>PAGE_SHIFT, E820_RESERVED_EFI); - if (efi_end > max_low_pfn) - end_pfn = efi_end; - } -#endif - - max_low_pfn_mapped = init_memory_mapping(0, end_pfn << PAGE_SHIFT); + max_low_pfn_mapped = init_memory_mapping(0, max_low_pfn< (1UL << (32 - PAGE_SHIFT)) - && end_pfn <= max_pfn_mapped)) { + && end_pfn <= max_pfn_mapped)) va = __va(md->phys_addr); - - if (!(md->attribute & EFI_MEMORY_WB)) { - addr = (u64) (unsigned long)va; - npages = md->num_pages; - memrange_efi_to_native(&addr, &npages); - set_memory_uc(addr, npages); - } - } else { - if (!(md->attribute & EFI_MEMORY_WB)) - va = ioremap_nocache(md->phys_addr, size); - else - va = ioremap_cache(md->phys_addr, size); - } + else + va = efi_ioremap(md->phys_addr, size, md->type); md->virt_addr = (u64) (unsigned long) va; @@ -698,6 +684,13 @@ void __init efi_enter_virtual_mode(void) continue; } + if (!(md->attribute & EFI_MEMORY_WB)) { + addr = md->virt_addr; + npages = md->num_pages; + memrange_efi_to_native(&addr, &npages); + set_memory_uc(addr, npages); + } + systab = (u64) (unsigned long) efi_phys.systab; if (md->phys_addr <= systab && systab < end) { systab += md->virt_addr - md->phys_addr; diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index 312250c6b2d..ac3aa54e265 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -80,3 +80,20 @@ void __init efi_call_phys_epilog(void) local_irq_restore(efi_flags); early_code_mapping_set_exec(0); } + +void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size, + u32 type) +{ + unsigned long last_map_pfn; + + if (type == EFI_MEMORY_MAPPED_IO) + return ioremap(phys_addr, size); + + last_map_pfn = init_memory_mapping(phys_addr, phys_addr + size); + if ((last_map_pfn << PAGE_SHIFT) < phys_addr + size) { + unsigned long top = last_map_pfn << PAGE_SHIFT; + efi_ioremap(top, size - (top - phys_addr), type); + } + + return (void __iomem *)__va(phys_addr); +} -- cgit v1.2.3 From 4b5d8da88e3fab76700e89488a8c65c54facb9a3 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 12 Dec 2011 16:02:15 -0200 Subject: Revert "[media] af9015: limit I2C access to keep FW happy" This reverts commit ff83bd82cb343d37b5ab8e402aaad9ef33d03f1e. As requested by Antti: From a talk with him at #linuxtv irc, he strong feeling that some apps like MythTV will do a lot a lot of I2C I/O and now it adds locks, with utimatelly means more delays. This could cause bad effects. There is a new patch for 3.3 that re-writes af9013 in order to limit I2C I/O. and thus those patches could be nice to have together because those user who has has problems are most likely MythTV users. So, let's revert this commit for now. Requested-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-usb/af9015.c | 97 -------------------------------------- drivers/media/dvb/dvb-usb/af9015.h | 7 --- 2 files changed, 104 deletions(-) diff --git a/drivers/media/dvb/dvb-usb/af9015.c b/drivers/media/dvb/dvb-usb/af9015.c index 033aa8affd8..c6c275bac08 100644 --- a/drivers/media/dvb/dvb-usb/af9015.c +++ b/drivers/media/dvb/dvb-usb/af9015.c @@ -1093,80 +1093,9 @@ error: return ret; } -/* override demod callbacks for resource locking */ -static int af9015_af9013_set_frontend(struct dvb_frontend *fe, - struct dvb_frontend_parameters *params) -{ - int ret; - struct dvb_usb_adapter *adap = fe->dvb->priv; - struct af9015_state *priv = adap->dev->priv; - - if (mutex_lock_interruptible(&adap->dev->usb_mutex)) - return -EAGAIN; - - ret = priv->set_frontend[adap->id](fe, params); - - mutex_unlock(&adap->dev->usb_mutex); - - return ret; -} - -/* override demod callbacks for resource locking */ -static int af9015_af9013_read_status(struct dvb_frontend *fe, - fe_status_t *status) -{ - int ret; - struct dvb_usb_adapter *adap = fe->dvb->priv; - struct af9015_state *priv = adap->dev->priv; - - if (mutex_lock_interruptible(&adap->dev->usb_mutex)) - return -EAGAIN; - - ret = priv->read_status[adap->id](fe, status); - - mutex_unlock(&adap->dev->usb_mutex); - - return ret; -} - -/* override demod callbacks for resource locking */ -static int af9015_af9013_init(struct dvb_frontend *fe) -{ - int ret; - struct dvb_usb_adapter *adap = fe->dvb->priv; - struct af9015_state *priv = adap->dev->priv; - - if (mutex_lock_interruptible(&adap->dev->usb_mutex)) - return -EAGAIN; - - ret = priv->init[adap->id](fe); - - mutex_unlock(&adap->dev->usb_mutex); - - return ret; -} - -/* override demod callbacks for resource locking */ -static int af9015_af9013_sleep(struct dvb_frontend *fe) -{ - int ret; - struct dvb_usb_adapter *adap = fe->dvb->priv; - struct af9015_state *priv = adap->dev->priv; - - if (mutex_lock_interruptible(&adap->dev->usb_mutex)) - return -EAGAIN; - - ret = priv->init[adap->id](fe); - - mutex_unlock(&adap->dev->usb_mutex); - - return ret; -} - static int af9015_af9013_frontend_attach(struct dvb_usb_adapter *adap) { int ret; - struct af9015_state *state = adap->dev->priv; if (adap->id == 1) { /* copy firmware to 2nd demodulator */ @@ -1187,32 +1116,6 @@ static int af9015_af9013_frontend_attach(struct dvb_usb_adapter *adap) adap->fe_adap[0].fe = dvb_attach(af9013_attach, &af9015_af9013_config[adap->id], &adap->dev->i2c_adap); - /* - * AF9015 firmware does not like if it gets interrupted by I2C adapter - * request on some critical phases. During normal operation I2C adapter - * is used only 2nd demodulator and tuner on dual tuner devices. - * Override demodulator callbacks and use mutex for limit access to - * those "critical" paths to keep AF9015 happy. - * Note: we abuse unused usb_mutex here. - */ - if (adap->fe_adap[0].fe) { - state->set_frontend[adap->id] = - adap->fe_adap[0].fe->ops.set_frontend; - adap->fe_adap[0].fe->ops.set_frontend = - af9015_af9013_set_frontend; - - state->read_status[adap->id] = - adap->fe_adap[0].fe->ops.read_status; - adap->fe_adap[0].fe->ops.read_status = - af9015_af9013_read_status; - - state->init[adap->id] = adap->fe_adap[0].fe->ops.init; - adap->fe_adap[0].fe->ops.init = af9015_af9013_init; - - state->sleep[adap->id] = adap->fe_adap[0].fe->ops.sleep; - adap->fe_adap[0].fe->ops.sleep = af9015_af9013_sleep; - } - return adap->fe_adap[0].fe == NULL ? -ENODEV : 0; } diff --git a/drivers/media/dvb/dvb-usb/af9015.h b/drivers/media/dvb/dvb-usb/af9015.h index 4a126177e10..6252ea6c190 100644 --- a/drivers/media/dvb/dvb-usb/af9015.h +++ b/drivers/media/dvb/dvb-usb/af9015.h @@ -102,13 +102,6 @@ struct af9015_state { u8 rc_repeat; u32 rc_keycode; u8 rc_last[4]; - - /* for demod callback override */ - int (*set_frontend[2]) (struct dvb_frontend *fe, - struct dvb_frontend_parameters *params); - int (*read_status[2]) (struct dvb_frontend *fe, fe_status_t *status); - int (*init[2]) (struct dvb_frontend *fe); - int (*sleep[2]) (struct dvb_frontend *fe); }; struct af9015_config { -- cgit v1.2.3 From 0c8551e5fa3833c6080542da662394817fea4616 Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Mon, 12 Dec 2011 10:38:26 +0200 Subject: ARM: OMAP: mcbsp: Fix possible memory corruption Commits 09d28d ("ARM: OMAP: mcbsp: Start generalize omap2_mcbsp_set_clks_src") and 7bc0c4 ("ARM: OMAP: mcbsp: Start generalize signal muxing functions") incorrectly set two struct omap_mcbsp_platform_data fields after omap_device_build_ss and kfree calls. Fix this by moving these pdata assignments before those calls. Signed-off-by: Jarkko Nikula Reported-by: NeilBrown Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/mcbsp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c index 292eee3be15..28fcb27005d 100644 --- a/arch/arm/mach-omap2/mcbsp.c +++ b/arch/arm/mach-omap2/mcbsp.c @@ -145,6 +145,9 @@ static int omap_init_mcbsp(struct omap_hwmod *oh, void *unused) pdata->reg_size = 4; pdata->has_ccr = true; } + pdata->set_clk_src = omap2_mcbsp_set_clk_src; + if (id == 1) + pdata->mux_signal = omap2_mcbsp1_mux_rx_clk; if (oh->class->rev == MCBSP_CONFIG_TYPE3) { if (id == 2) @@ -174,9 +177,6 @@ static int omap_init_mcbsp(struct omap_hwmod *oh, void *unused) name, oh->name); return PTR_ERR(pdev); } - pdata->set_clk_src = omap2_mcbsp_set_clk_src; - if (id == 1) - pdata->mux_signal = omap2_mcbsp1_mux_rx_clk; omap_mcbsp_count++; return 0; } -- cgit v1.2.3 From 123877b80ed62c3b897c53357b622574c023b642 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Thu, 8 Dec 2011 15:52:00 -0800 Subject: iwlwifi: do not set the sequence control bit is not needed Check the IEEE80211_TX_CTL_ASSIGN_SEQ flag from mac80211, then decide how to set the TX_CMD_FLG_SEQ_CTL_MSK bit. Setting the wrong bit in BAR frame whill make the firmware to increment the sequence number which is incorrect and cause unknown behavior. CC: stable@vger.kernel.org #3.0+ Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn-tx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index 35a6b71f358..df1540ca610 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -91,7 +91,10 @@ static void iwlagn_tx_cmd_build_basic(struct iwl_priv *priv, tx_cmd->tid_tspec = qc[0] & 0xf; tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; } else { - tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; + if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) + tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; + else + tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; } iwlagn_tx_cmd_protection(priv, info, fc, &tx_flags); -- cgit v1.2.3 From f8c141c3e915e3a040d4c1badde28e23f8cbe255 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 9 Dec 2011 09:35:39 +0300 Subject: nfc: signedness bug in __nci_request() wait_for_completion_interruptible_timeout() returns -ERESTARTSYS if interrupted so completion_rc needs to be signed. The current code probably returns -ETIMEDOUT if we hit this situation, but after this patch is applied it will return -ERESTARTSYS. Signed-off-by: Dan Carpenter Signed-off-by: John W. Linville --- net/nfc/nci/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c index 4047e29acb3..25dae3f8f5c 100644 --- a/net/nfc/nci/core.c +++ b/net/nfc/nci/core.c @@ -68,7 +68,7 @@ static int __nci_request(struct nci_dev *ndev, __u32 timeout) { int rc = 0; - unsigned long completion_rc; + long completion_rc; ndev->req_status = NCI_REQ_PEND; -- cgit v1.2.3 From 10636bc2d60942254bda149827b922c41f4cb4af Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Sat, 10 Dec 2011 18:59:43 +0530 Subject: ath9k: fix max phy rate at rate control init The stations always chooses 1Mbps for all trasmitting frames, whenever the AP is configured to lock the supported rates. As the max phy rate is always set with the 4th from highest phy rate, this assumption might be wrong if we have less than that. Fix that. Cc: stable@kernel.org Cc: Paul Stewart Reported-by: Ajay Gummalla Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/rc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c index 8448281dd06..cc5703b853b 100644 --- a/drivers/net/wireless/ath/ath9k/rc.c +++ b/drivers/net/wireless/ath/ath9k/rc.c @@ -1270,7 +1270,9 @@ static void ath_rc_init(struct ath_softc *sc, ath_rc_priv->max_valid_rate = k; ath_rc_sort_validrates(rate_table, ath_rc_priv); - ath_rc_priv->rate_max_phy = ath_rc_priv->valid_rate_index[k-4]; + ath_rc_priv->rate_max_phy = (k > 4) ? + ath_rc_priv->valid_rate_index[k-4] : + ath_rc_priv->valid_rate_index[k-1]; ath_rc_priv->rate_table = rate_table; ath_dbg(common, ATH_DBG_CONFIG, -- cgit v1.2.3 From 414b591fd16655871e9f5592a55368b10a3ccc30 Mon Sep 17 00:00:00 2001 From: Alex Hermann Date: Mon, 12 Dec 2011 21:42:23 +0100 Subject: usb: option: Add Huawei E398 controlling interfaces MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch adds the controlling interfaces for the Huawei E398. Thanks to Bjørn Mork for extracting the interface numbers from the windows driver. Signed-off-by: Alex Hermann Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index e3426602dc8..29907482261 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -664,6 +664,9 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x02) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x03) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x08) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x01) }, /* E398 3G Modem */ + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x02) }, /* E398 3G PC UI Interface */ + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x03) }, /* E398 3G Application Interface */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, -- cgit v1.2.3 From 6abff5dc4d5a2c90e597137ce8987e7fd439259b Mon Sep 17 00:00:00 2001 From: Krzysztof Hałasa Date: Mon, 12 Dec 2011 14:51:00 +0100 Subject: USB: cdc-acm: add IDs for Motorola H24 HSPA USB module. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add USB IDs for Motorola H24 HSPA USB module. Signed-off-by: Krzysztof Hałasa Acked-by: Oliver Neukum Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index e8c564a5334..a8078d0638f 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1458,6 +1458,16 @@ static const struct usb_device_id acm_ids[] = { }, { USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */ }, + /* Motorola H24 HSPA module: */ + { USB_DEVICE(0x22b8, 0x2d91) }, /* modem */ + { USB_DEVICE(0x22b8, 0x2d92) }, /* modem + diagnostics */ + { USB_DEVICE(0x22b8, 0x2d93) }, /* modem + AT port */ + { USB_DEVICE(0x22b8, 0x2d95) }, /* modem + AT port + diagnostics */ + { USB_DEVICE(0x22b8, 0x2d96) }, /* modem + NMEA */ + { USB_DEVICE(0x22b8, 0x2d97) }, /* modem + diagnostics + NMEA */ + { USB_DEVICE(0x22b8, 0x2d99) }, /* modem + AT port + NMEA */ + { USB_DEVICE(0x22b8, 0x2d9a) }, /* modem + AT port + diagnostics + NMEA */ + { USB_DEVICE(0x0572, 0x1329), /* Hummingbird huc56s (Conexant) */ .driver_info = NO_UNION_NORMAL, /* union descriptor misplaced on data interface instead of -- cgit v1.2.3 From 4af04aba93f47699e7ac33e7cfd4da22550e6114 Mon Sep 17 00:00:00 2001 From: Li Wei Date: Tue, 6 Dec 2011 21:23:45 +0000 Subject: ipv6: Fix for adding multicast route for loopback device automatically. There is no obvious reason to add a default multicast route for loopback devices, otherwise there would be a route entry whose dst.error set to -ENETUNREACH that would blocking all multicast packets. ==================== [ more detailed explanation ] The problem is that the resulting routing table depends on the sequence of interface's initialization and in some situation, that would block all muticast packets. Suppose there are two interfaces on my computer (lo and eth0), if we initailize 'lo' before 'eth0', the resuting routing table(for multicast) would be # ip -6 route show | grep ff00:: unreachable ff00::/8 dev lo metric 256 error -101 ff00::/8 dev eth0 metric 256 When sending multicasting packets, routing subsystem will return the first route entry which with a error set to -101(ENETUNREACH). I know the kernel will set the default ipv6 address for 'lo' when it is up and won't set the default multicast route for it, but there is no reason to stop 'init' program from setting address for 'lo', and that is exactly what systemd did. I am sure there is something wrong with kernel or systemd, currently I preferred kernel caused this problem. ==================== Signed-off-by: Li Wei Signed-off-by: David S. Miller --- net/ipv6/addrconf.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index cf88df82e2c..36806def8cf 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1805,7 +1805,8 @@ static struct inet6_dev *addrconf_add_dev(struct net_device *dev) return ERR_PTR(-EACCES); /* Add default multicast route */ - addrconf_add_mroute(dev); + if (!(dev->flags & IFF_LOOPBACK)) + addrconf_add_mroute(dev); /* Add link local route */ addrconf_add_lroute(dev); -- cgit v1.2.3 From 72b36015ba43a3cca5303f5534d2c3e1899eae29 Mon Sep 17 00:00:00 2001 From: Ted Feng Date: Thu, 8 Dec 2011 00:46:21 +0000 Subject: ipip, sit: copy parms.name after register_netdevice Same fix as 731abb9cb2 for ipip and sit tunnel. Commit 1c5cae815d removed an explicit call to dev_alloc_name in ipip_tunnel_locate and ipip6_tunnel_locate, because register_netdevice will now create a valid name, however the tunnel keeps a copy of the name in the private parms structure. Fix this by copying the name back after register_netdevice has successfully returned. This shows up if you do a simple tunnel add, followed by a tunnel show: $ sudo ip tunnel add mode ipip remote 10.2.20.211 $ ip tunnel tunl0: ip/ip remote any local any ttl inherit nopmtudisc tunl%d: ip/ip remote 10.2.20.211 local any ttl inherit $ sudo ip tunnel add mode sit remote 10.2.20.212 $ ip tunnel sit0: ipv6/ip remote any local any ttl 64 nopmtudisc 6rd-prefix 2002::/16 sit%d: ioctl 89f8 failed: No such device sit%d: ipv6/ip remote 10.2.20.212 local any ttl inherit Cc: stable@vger.kernel.org Signed-off-by: Ted Feng Signed-off-by: David S. Miller --- net/ipv4/ipip.c | 7 ++++++- net/ipv6/sit.c | 7 ++++++- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c index 065effd8349..0b2e7329abd 100644 --- a/net/ipv4/ipip.c +++ b/net/ipv4/ipip.c @@ -285,6 +285,8 @@ static struct ip_tunnel * ipip_tunnel_locate(struct net *net, if (register_netdevice(dev) < 0) goto failed_free; + strcpy(nt->parms.name, dev->name); + dev_hold(dev); ipip_tunnel_link(ipn, nt); return nt; @@ -759,7 +761,6 @@ static int ipip_tunnel_init(struct net_device *dev) struct ip_tunnel *tunnel = netdev_priv(dev); tunnel->dev = dev; - strcpy(tunnel->parms.name, dev->name); memcpy(dev->dev_addr, &tunnel->parms.iph.saddr, 4); memcpy(dev->broadcast, &tunnel->parms.iph.daddr, 4); @@ -825,6 +826,7 @@ static void ipip_destroy_tunnels(struct ipip_net *ipn, struct list_head *head) static int __net_init ipip_init_net(struct net *net) { struct ipip_net *ipn = net_generic(net, ipip_net_id); + struct ip_tunnel *t; int err; ipn->tunnels[0] = ipn->tunnels_wc; @@ -848,6 +850,9 @@ static int __net_init ipip_init_net(struct net *net) if ((err = register_netdev(ipn->fb_tunnel_dev))) goto err_reg_dev; + t = netdev_priv(ipn->fb_tunnel_dev); + + strcpy(t->parms.name, ipn->fb_tunnel_dev->name); return 0; err_reg_dev: diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index a7a18602a04..96f3623618e 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -263,6 +263,8 @@ static struct ip_tunnel *ipip6_tunnel_locate(struct net *net, if (register_netdevice(dev) < 0) goto failed_free; + strcpy(nt->parms.name, dev->name); + dev_hold(dev); ipip6_tunnel_link(sitn, nt); @@ -1144,7 +1146,6 @@ static int ipip6_tunnel_init(struct net_device *dev) struct ip_tunnel *tunnel = netdev_priv(dev); tunnel->dev = dev; - strcpy(tunnel->parms.name, dev->name); memcpy(dev->dev_addr, &tunnel->parms.iph.saddr, 4); memcpy(dev->broadcast, &tunnel->parms.iph.daddr, 4); @@ -1207,6 +1208,7 @@ static void __net_exit sit_destroy_tunnels(struct sit_net *sitn, struct list_hea static int __net_init sit_init_net(struct net *net) { struct sit_net *sitn = net_generic(net, sit_net_id); + struct ip_tunnel *t; int err; sitn->tunnels[0] = sitn->tunnels_wc; @@ -1231,6 +1233,9 @@ static int __net_init sit_init_net(struct net *net) if ((err = register_netdev(sitn->fb_tunnel_dev))) goto err_reg_dev; + t = netdev_priv(sitn->fb_tunnel_dev); + + strcpy(t->parms.name, sitn->fb_tunnel_dev->name); return 0; err_reg_dev: -- cgit v1.2.3 From 3f1e6d3fd37bd4f25e5b19f1c7ca21850426c33f Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 11 Dec 2011 23:42:53 +0000 Subject: sch_gred: should not use GFP_KERNEL while holding a spinlock gred_change_vq() is called under sch_tree_lock(sch). This means a spinlock is held, and we are not allowed to sleep in this context. We might pre-allocate memory using GFP_KERNEL before taking spinlock, but this is not suitable for stable material. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/sched/sch_gred.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c index b9493a09a87..6cd8ddfb512 100644 --- a/net/sched/sch_gred.c +++ b/net/sched/sch_gred.c @@ -385,7 +385,7 @@ static inline int gred_change_vq(struct Qdisc *sch, int dp, struct gred_sched_data *q; if (table->tab[dp] == NULL) { - table->tab[dp] = kzalloc(sizeof(*q), GFP_KERNEL); + table->tab[dp] = kzalloc(sizeof(*q), GFP_ATOMIC); if (table->tab[dp] == NULL) return -ENOMEM; } -- cgit v1.2.3 From fc6cb1cda5db7b2d24bf32890826214b857c728e Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 12 Dec 2011 22:06:18 -0500 Subject: ext4: display the correct mount option in /proc/mounts for [no]init_itable /proc/mounts was showing the mount option [no]init_inode_table when the correct mount option that will be accepted by parse_options() is [no]init_itable. Signed-off-by: "Theodore Ts'o" Cc: stable@kernel.org --- fs/ext4/super.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 3858767ec67..3e1329e2f82 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1155,9 +1155,9 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs) seq_puts(seq, ",block_validity"); if (!test_opt(sb, INIT_INODE_TABLE)) - seq_puts(seq, ",noinit_inode_table"); + seq_puts(seq, ",noinit_itable"); else if (sbi->s_li_wait_mult != EXT4_DEF_LI_WAIT_MULT) - seq_printf(seq, ",init_inode_table=%u", + seq_printf(seq, ",init_itable=%u", (unsigned) sbi->s_li_wait_mult); ext4_show_quota_options(seq, sb); @@ -1333,8 +1333,7 @@ enum { Opt_nomblk_io_submit, Opt_block_validity, Opt_noblock_validity, Opt_inode_readahead_blks, Opt_journal_ioprio, Opt_dioread_nolock, Opt_dioread_lock, - Opt_discard, Opt_nodiscard, - Opt_init_inode_table, Opt_noinit_inode_table, + Opt_discard, Opt_nodiscard, Opt_init_itable, Opt_noinit_itable, }; static const match_table_t tokens = { @@ -1407,9 +1406,9 @@ static const match_table_t tokens = { {Opt_dioread_lock, "dioread_lock"}, {Opt_discard, "discard"}, {Opt_nodiscard, "nodiscard"}, - {Opt_init_inode_table, "init_itable=%u"}, - {Opt_init_inode_table, "init_itable"}, - {Opt_noinit_inode_table, "noinit_itable"}, + {Opt_init_itable, "init_itable=%u"}, + {Opt_init_itable, "init_itable"}, + {Opt_noinit_itable, "noinit_itable"}, {Opt_err, NULL}, }; @@ -1892,7 +1891,7 @@ set_qf_format: case Opt_dioread_lock: clear_opt(sb, DIOREAD_NOLOCK); break; - case Opt_init_inode_table: + case Opt_init_itable: set_opt(sb, INIT_INODE_TABLE); if (args[0].from) { if (match_int(&args[0], &option)) @@ -1903,7 +1902,7 @@ set_qf_format: return 0; sbi->s_li_wait_mult = option; break; - case Opt_noinit_inode_table: + case Opt_noinit_itable: clear_opt(sb, INIT_INODE_TABLE); break; default: -- cgit v1.2.3 From 13c07b0286d340275f2d97adf085cecda37ede37 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 12 Dec 2011 22:06:55 -0800 Subject: linux/log2.h: Fix rounddown_pow_of_two(1) Exactly like roundup_pow_of_two(1), the rounddown version was buggy for the case of a compile-time constant '1' argument. Probably because it originated from the same code, sharing history with the roundup version from before the bugfix (for that one, see commit 1a06a52ee1b0: "Fix roundup_pow_of_two(1)"). However, unlike the roundup version, the fix for rounddown is to just remove the broken special case entirely. It's simply not needed - the generic code 1UL << ilog2(n) does the right thing for the constant '1' argment too. The only reason roundup needed that special case was because rounding up does so by subtracting one from the argument (and then adding one to the result) causing the obvious problems with "ilog2(0)". But rounddown doesn't do any of that, since ilog2() naturally truncates (ie "rounds down") to the right rounded down value. And without the ilog2(0) case, there's no reason for the special case that had the wrong value. tl;dr: rounddown_pow_of_two(1) should be 1, not 0. Acked-by: Dmitry Torokhov Cc: stable@kernel.org Signed-off-by: Linus Torvalds --- include/linux/log2.h | 1 - 1 file changed, 1 deletion(-) diff --git a/include/linux/log2.h b/include/linux/log2.h index 25b808631cd..fd7ff3d91e6 100644 --- a/include/linux/log2.h +++ b/include/linux/log2.h @@ -185,7 +185,6 @@ unsigned long __rounddown_pow_of_two(unsigned long n) #define rounddown_pow_of_two(n) \ ( \ __builtin_constant_p(n) ? ( \ - (n == 1) ? 0 : \ (1UL << ilog2(n))) : \ __rounddown_pow_of_two(n) \ ) -- cgit v1.2.3 From 48706d0a91583d08c56e7ef2a7602d99c8d4133f Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Tue, 13 Dec 2011 10:36:59 +0100 Subject: fuse: fix fuse_retrieve Fix two bugs in fuse_retrieve(): - retrieving more than one page would yield repeated instances of the first page - if more than FUSE_MAX_PAGES_PER_REQ pages were requested than the request page array would overflow fuse_retrieve() was added in 2.6.36 and these bugs had been there since the beginning. Signed-off-by: Miklos Szeredi CC: stable@vger.kernel.org --- fs/fuse/dev.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 5cb8614508c..2aaf3eaaf13 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -1512,7 +1512,7 @@ static int fuse_retrieve(struct fuse_conn *fc, struct inode *inode, else if (outarg->offset + num > file_size) num = file_size - outarg->offset; - while (num) { + while (num && req->num_pages < FUSE_MAX_PAGES_PER_REQ) { struct page *page; unsigned int this_num; @@ -1526,6 +1526,7 @@ static int fuse_retrieve(struct fuse_conn *fc, struct inode *inode, num -= this_num; total_len += this_num; + index++; } req->misc.retrieve_in.offset = outarg->offset; req->misc.retrieve_in.size = total_len; -- cgit v1.2.3 From b48c6af2086ab2ba8a9c9b6ce9ecb34592ce500c Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Tue, 13 Dec 2011 10:37:00 +0100 Subject: fuse: fix llseek bug The test in fuse_file_llseek() "not SEEK_CUR or not SEEK_SET" always evaluates to true. This was introduced in 3.1 by commit 06222e49 (fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's that define their own llseek) and changed the behavior of SEEK_CUR and SEEK_SET to always retrieve the file attributes. This is a performance regression. Fix the test so that it makes sense. Signed-off-by: Miklos Szeredi CC: stable@vger.kernel.org CC: Josef Bacik CC: Al Viro --- fs/fuse/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 594f07a81c2..19029e97ca2 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1556,7 +1556,7 @@ static loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin) struct inode *inode = file->f_path.dentry->d_inode; mutex_lock(&inode->i_mutex); - if (origin != SEEK_CUR || origin != SEEK_SET) { + if (origin != SEEK_CUR && origin != SEEK_SET) { retval = fuse_update_attributes(inode, NULL, file, NULL); if (retval) goto exit; -- cgit v1.2.3 From 73104b6e37f75f822e3dcf016147c322d1f6dad9 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Tue, 13 Dec 2011 11:40:59 +0100 Subject: fuse: llseek fix race Fix race between lseek(fd, 0, SEEK_CUR) and read/write. This was fixed in generic code by commit 5b6f1eb97d (vfs: lseek(fd, 0, SEEK_CUR) race condition). Signed-off-by: Miklos Szeredi --- fs/fuse/file.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 19029e97ca2..0c84100acd4 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1567,6 +1567,10 @@ static loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin) offset += i_size_read(inode); break; case SEEK_CUR: + if (offset == 0) { + retval = file->f_pos; + goto exit; + } offset += file->f_pos; break; case SEEK_DATA: -- cgit v1.2.3 From e2ef36c688d5844a986424c3194bd33212c968ce Mon Sep 17 00:00:00 2001 From: Gustavo Maciel Dias Vieira Date: Tue, 13 Dec 2011 11:47:22 -0200 Subject: ALSA: hda: fix mute led polarity for HP laptops with buggy BIOS Some HP laptop models do not have a properly filled OEM string used to set the gpio and polarity of the mute led. Make the mute led configuration work for this case. Signed-off-by: Gustavo Maciel Dias Vieira Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_sigmatel.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index eeb25d529e3..616678fde48 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -4929,6 +4929,12 @@ static int find_mute_led_gpio(struct hda_codec *codec, int default_polarity) set_hp_led_gpio(codec); return 1; } + /* BIOS bug: unfilled OEM string */ + if (strstr(dev->name, "HP_Mute_LED_P_G")) { + set_hp_led_gpio(codec); + spec->gpio_led_polarity = 1; + return 1; + } } /* -- cgit v1.2.3 From 935a9fee51c945b8942be2d7b4bae069167b4886 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 12 Dec 2011 12:39:14 -0800 Subject: ibft: Fix finding IBFT ACPI table on UEFI Found one system with UEFI/iBFT, kernel does not detect the iBFT during iscsi_ibft module loading. Root cause: on x86 (UEFI), we are calling of find_ibft_region() much earlier - specifically in setup_arch() before ACPI is enabled. Try to split acpi checking code out and call that later At that time ACPI iBFT already get permanent mapped with ioremap. So isa_virt_to_bus() will get wrong phys from right virt address. We could just skip that phys address printing. For legacy one, print the found address early. -v2: update comments and description according to Konrad. -v3: fix problem about module use case that is found by Konrad. -v4: use acpi_get_table() instead of acpi_table_parse() to handle module use case that is found by Konrad again.. Signed-off-by: Yinghai Lu Signed-off-by: Konrad Rzeszutek Wilk --- drivers/firmware/iscsi_ibft.c | 42 ++++++++++++++++++++++++++++++++++++-- drivers/firmware/iscsi_ibft_find.c | 26 ++--------------------- 2 files changed, 42 insertions(+), 26 deletions(-) diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c index c811cb10790..2cce44a1d7d 100644 --- a/drivers/firmware/iscsi_ibft.c +++ b/drivers/firmware/iscsi_ibft.c @@ -746,6 +746,37 @@ static void __exit ibft_exit(void) ibft_cleanup(); } +#ifdef CONFIG_ACPI +static const struct { + char *sign; +} ibft_signs[] = { + /* + * One spec says "IBFT", the other says "iBFT". We have to check + * for both. + */ + { ACPI_SIG_IBFT }, + { "iBFT" }, +}; + +static void __init acpi_find_ibft_region(void) +{ + int i; + struct acpi_table_header *table = NULL; + + if (acpi_disabled) + return; + + for (i = 0; i < ARRAY_SIZE(ibft_signs) && !ibft_addr; i++) { + acpi_get_table(ibft_signs[i].sign, 0, &table); + ibft_addr = (struct acpi_table_ibft *)table; + } +} +#else +static void __init acpi_find_ibft_region(void) +{ +} +#endif + /* * ibft_init() - creates sysfs tree entries for the iBFT data. */ @@ -753,9 +784,16 @@ static int __init ibft_init(void) { int rc = 0; + /* + As on UEFI systems the setup_arch()/find_ibft_region() + is called before ACPI tables are parsed and it only does + legacy finding. + */ + if (!ibft_addr) + acpi_find_ibft_region(); + if (ibft_addr) { - printk(KERN_INFO "iBFT detected at 0x%llx.\n", - (u64)isa_virt_to_bus(ibft_addr)); + pr_info("iBFT detected.\n"); rc = ibft_check_device(); if (rc) diff --git a/drivers/firmware/iscsi_ibft_find.c b/drivers/firmware/iscsi_ibft_find.c index bfe723266fd..4da4eb9ae92 100644 --- a/drivers/firmware/iscsi_ibft_find.c +++ b/drivers/firmware/iscsi_ibft_find.c @@ -45,13 +45,6 @@ EXPORT_SYMBOL_GPL(ibft_addr); static const struct { char *sign; } ibft_signs[] = { -#ifdef CONFIG_ACPI - /* - * One spec says "IBFT", the other says "iBFT". We have to check - * for both. - */ - { ACPI_SIG_IBFT }, -#endif { "iBFT" }, { "BIFT" }, /* Broadcom iSCSI Offload */ }; @@ -62,14 +55,6 @@ static const struct { #define VGA_MEM 0xA0000 /* VGA buffer */ #define VGA_SIZE 0x20000 /* 128kB */ -#ifdef CONFIG_ACPI -static int __init acpi_find_ibft(struct acpi_table_header *header) -{ - ibft_addr = (struct acpi_table_ibft *)header; - return 0; -} -#endif /* CONFIG_ACPI */ - static int __init find_ibft_in_mem(void) { unsigned long pos; @@ -94,6 +79,7 @@ static int __init find_ibft_in_mem(void) * the table cannot be valid. */ if (pos + len <= (IBFT_END-1)) { ibft_addr = (struct acpi_table_ibft *)virt; + pr_info("iBFT found at 0x%lx.\n", pos); goto done; } } @@ -108,20 +94,12 @@ done: */ unsigned long __init find_ibft_region(unsigned long *sizep) { -#ifdef CONFIG_ACPI - int i; -#endif ibft_addr = NULL; -#ifdef CONFIG_ACPI - for (i = 0; i < ARRAY_SIZE(ibft_signs) && !ibft_addr; i++) - acpi_table_parse(ibft_signs[i].sign, acpi_find_ibft); -#endif /* CONFIG_ACPI */ - /* iBFT 1.03 section 1.4.3.1 mandates that UEFI machines will * only use ACPI for this */ - if (!ibft_addr && !efi_enabled) + if (!efi_enabled) find_ibft_in_mem(); if (ibft_addr) { -- cgit v1.2.3 From 6a82c47aa84ab22cb5969a44105cca5358879d21 Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Tue, 13 Dec 2011 09:19:26 -0800 Subject: ceph: fix SEEK_CUR, SEEK_SET regression Commit 06222e491e663dac939f04b125c9dc52126a75c4 got the if wrong so that it always evaluates as true. This is semantically harmless, but makes SEEK_CUR and SEEK_SET needlessly query the server. Rewrite the if to explicitly enumerate the cases we DO need a valid i_size to make this code less fragile. Reported-by: Roel Kluin Signed-off-by: Sage Weil --- fs/ceph/file.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ceph/file.c b/fs/ceph/file.c index af187330cc8..ed72428d9c7 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -797,7 +797,8 @@ static loff_t ceph_llseek(struct file *file, loff_t offset, int origin) mutex_lock(&inode->i_mutex); __ceph_do_pending_vmtruncate(inode); - if (origin != SEEK_CUR || origin != SEEK_SET) { + + if (origin == SEEK_END || origin == SEEK_DATA || origin == SEEK_HOLE) { ret = ceph_do_getattr(inode, CEPH_STAT_CAP_SIZE); if (ret < 0) { offset = ret; -- cgit v1.2.3 From 5cc361e3b8241989d8240014dbbe6214c9292541 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 12 Dec 2011 23:58:21 -0500 Subject: ubifs: too early register_filesystem() doing that before you are ready to handle mount() is a Bad Idea(tm)... Signed-off-by: Al Viro --- fs/ubifs/super.c | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 20403dc5d43..ae0e76bb6eb 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -2264,19 +2264,12 @@ static int __init ubifs_init(void) return -EINVAL; } - err = register_filesystem(&ubifs_fs_type); - if (err) { - ubifs_err("cannot register file system, error %d", err); - return err; - } - - err = -ENOMEM; ubifs_inode_slab = kmem_cache_create("ubifs_inode_slab", sizeof(struct ubifs_inode), 0, SLAB_MEM_SPREAD | SLAB_RECLAIM_ACCOUNT, &inode_slab_ctor); if (!ubifs_inode_slab) - goto out_reg; + return -ENOMEM; register_shrinker(&ubifs_shrinker_info); @@ -2288,15 +2281,20 @@ static int __init ubifs_init(void) if (err) goto out_compr; + err = register_filesystem(&ubifs_fs_type); + if (err) { + ubifs_err("cannot register file system, error %d", err); + goto out_dbg; + } return 0; +out_dbg: + dbg_debugfs_exit(); out_compr: ubifs_compressors_exit(); out_shrinker: unregister_shrinker(&ubifs_shrinker_info); kmem_cache_destroy(ubifs_inode_slab); -out_reg: - unregister_filesystem(&ubifs_fs_type); return err; } /* late_initcall to let compressors initialize first */ -- cgit v1.2.3 From 988f032567eaba3c5896c5de05270b9ff71b2a9d Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 13 Dec 2011 12:25:27 -0500 Subject: fuse: register_filesystem() called too early same story as with ubifs Signed-off-by: Al Viro --- fs/fuse/inode.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 3e6d7275647..aa83109b943 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -1138,28 +1138,28 @@ static int __init fuse_fs_init(void) { int err; - err = register_filesystem(&fuse_fs_type); - if (err) - goto out; - - err = register_fuseblk(); - if (err) - goto out_unreg; - fuse_inode_cachep = kmem_cache_create("fuse_inode", sizeof(struct fuse_inode), 0, SLAB_HWCACHE_ALIGN, fuse_inode_init_once); err = -ENOMEM; if (!fuse_inode_cachep) - goto out_unreg2; + goto out; + + err = register_fuseblk(); + if (err) + goto out2; + + err = register_filesystem(&fuse_fs_type); + if (err) + goto out3; return 0; - out_unreg2: + out3: unregister_fuseblk(); - out_unreg: - unregister_filesystem(&fuse_fs_type); + out2: + kmem_cache_destroy(fuse_inode_cachep); out: return err; } -- cgit v1.2.3 From 7c6455e368bc87ef38df7b6ddba2339a67107bdf Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 13 Dec 2011 12:32:42 -0500 Subject: configfs: register_filesystem() called too early Signed-off-by: Al Viro --- fs/configfs/inode.c | 2 +- fs/configfs/mount.c | 36 +++++++++++++++++------------------- 2 files changed, 18 insertions(+), 20 deletions(-) diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c index ca418aaf635..9d8715c45f2 100644 --- a/fs/configfs/inode.c +++ b/fs/configfs/inode.c @@ -292,7 +292,7 @@ int __init configfs_inode_init(void) return bdi_init(&configfs_backing_dev_info); } -void __exit configfs_inode_exit(void) +void configfs_inode_exit(void) { bdi_destroy(&configfs_backing_dev_info); } diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c index ecc62178bed..276e15cafd5 100644 --- a/fs/configfs/mount.c +++ b/fs/configfs/mount.c @@ -143,28 +143,26 @@ static int __init configfs_init(void) goto out; config_kobj = kobject_create_and_add("config", kernel_kobj); - if (!config_kobj) { - kmem_cache_destroy(configfs_dir_cachep); - configfs_dir_cachep = NULL; - goto out; - } + if (!config_kobj) + goto out2; + + err = configfs_inode_init(); + if (err) + goto out3; err = register_filesystem(&configfs_fs_type); - if (err) { - printk(KERN_ERR "configfs: Unable to register filesystem!\n"); - kobject_put(config_kobj); - kmem_cache_destroy(configfs_dir_cachep); - configfs_dir_cachep = NULL; - goto out; - } + if (err) + goto out4; - err = configfs_inode_init(); - if (err) { - unregister_filesystem(&configfs_fs_type); - kobject_put(config_kobj); - kmem_cache_destroy(configfs_dir_cachep); - configfs_dir_cachep = NULL; - } + return 0; +out4: + printk(KERN_ERR "configfs: Unable to register filesystem!\n"); + configfs_inode_exit(); +out3: + kobject_put(config_kobj); +out2: + kmem_cache_destroy(configfs_dir_cachep); + configfs_dir_cachep = NULL; out: return err; } -- cgit v1.2.3 From 02a551c9755b799579e0a093bcc99b80b4dc1453 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Tue, 13 Dec 2011 05:33:02 +0100 Subject: USB: option: Removing one bogus and adding some new Huawei combinations MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Huawei use the product code HUAWEI_PRODUCT_E353 (0x1506) for a number of different devices, which each can appear with a number of different descriptor sets. Different types of interfaces can be identified by looking at the subclass and protocol fields Subclass 1 protocol 8 is actually the data interface of a CDC ECM set, with subclass 1 protocol 9 as the control interface. Neither support serial data communcation, and cannot therefore be supported by this driver. At the same time, add a few other sets which appear if the device is configured in "Windows mode" using this modeswitch message: 55534243000000000000000000000011060000000100000000000000000000 Signed-off-by: Bjørn Mork Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 29907482261..6dd64534fad 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -663,7 +663,9 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x01) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x02) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x03) }, - { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x08) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x10) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x12) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x13) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x01) }, /* E398 3G Modem */ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x02) }, /* E398 3G PC UI Interface */ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x03) }, /* E398 3G Application Interface */ -- cgit v1.2.3 From b2888095feb3c651cba5904b0227622e82777b34 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Fri, 9 Dec 2011 16:56:08 -0600 Subject: gpio: pl061: drop extra check for NULL platform_data In adding DT binding support, the check for NULL platform_data got added back in inadvertently, so remove it. Signed-off-by: Rob Herring Signed-off-by: Grant Likely --- drivers/gpio/gpio-pl061.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index 093c90bd3c1..4102f63230f 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -238,10 +238,6 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id) int ret, irq, i; static DECLARE_BITMAP(init_irq, NR_IRQS); - pdata = dev->dev.platform_data; - if (pdata == NULL) - return -ENODEV; - chip = kzalloc(sizeof(*chip), GFP_KERNEL); if (chip == NULL) return -ENOMEM; -- cgit v1.2.3 From f9ea14efa5277c47efec341dee2c408b6b80f854 Mon Sep 17 00:00:00 2001 From: Feng Tang Date: Tue, 13 Dec 2011 23:53:49 +0800 Subject: gpio-ml-ioh: fix a bug in the interrupt handler GPIO's irq action's dev_id is set to the first struct ioh_gpio chip, so when loop checking the 8 chips, the "chip" should be changed according. Signed-off-by: Feng Tang Signed-off-by: Grant Likely --- drivers/gpio/gpio-ml-ioh.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c index ea8e7386925..92b6f51a206 100644 --- a/drivers/gpio/gpio-ml-ioh.c +++ b/drivers/gpio/gpio-ml-ioh.c @@ -339,7 +339,7 @@ static irqreturn_t ioh_gpio_handler(int irq, void *dev_id) int i, j; int ret = IRQ_NONE; - for (i = 0; i < 8; i++) { + for (i = 0; i < 8; i++, chip++) { reg_val = ioread32(&chip->reg->regs[i].istatus); for (j = 0; j < num_ports[i]; j++) { if (reg_val & BIT(j)) { -- cgit v1.2.3 From 4d052213ff8f71a4a70fc4eed71b773cfde51fcf Mon Sep 17 00:00:00 2001 From: Feng Tang Date: Tue, 13 Dec 2011 23:53:50 +0800 Subject: gpio-ml-ioh: Add the irq_disable/irq_enable hooks for ml-ioh irq chip These hooks will be needed by the general disabl/enable_irq(); Signed-off-by: Feng Tang Signed-off-by: Grant Likely --- drivers/gpio/gpio-ml-ioh.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c index 92b6f51a206..461958fc226 100644 --- a/drivers/gpio/gpio-ml-ioh.c +++ b/drivers/gpio/gpio-ml-ioh.c @@ -332,6 +332,34 @@ static void ioh_irq_mask(struct irq_data *d) &chip->reg->regs[chip->ch].imask); } +static void ioh_irq_disable(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct ioh_gpio *chip = gc->private; + unsigned long flags; + u32 ien; + + spin_lock_irqsave(&chip->spinlock, flags); + ien = ioread32(&chip->reg->regs[chip->ch].ien); + ien &= ~(1 << (d->irq - chip->irq_base)); + iowrite32(ien, &chip->reg->regs[chip->ch].ien); + spin_unlock_irqrestore(&chip->spinlock, flags); +} + +static void ioh_irq_enable(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct ioh_gpio *chip = gc->private; + unsigned long flags; + u32 ien; + + spin_lock_irqsave(&chip->spinlock, flags); + ien = ioread32(&chip->reg->regs[chip->ch].ien); + ien |= 1 << (d->irq - chip->irq_base); + iowrite32(ien, &chip->reg->regs[chip->ch].ien); + spin_unlock_irqrestore(&chip->spinlock, flags); +} + static irqreturn_t ioh_gpio_handler(int irq, void *dev_id) { struct ioh_gpio *chip = dev_id; @@ -370,6 +398,8 @@ static __devinit void ioh_gpio_alloc_generic_chip(struct ioh_gpio *chip, ct->chip.irq_mask = ioh_irq_mask; ct->chip.irq_unmask = ioh_irq_unmask; ct->chip.irq_set_type = ioh_irq_type; + ct->chip.irq_disable = ioh_irq_disable; + ct->chip.irq_enable = ioh_irq_enable; irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE, IRQ_NOREQUEST | IRQ_NOPROBE, 0); -- cgit v1.2.3 From 28538df0389a59ede9ccd6f327d2031f0044db87 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Tue, 13 Dec 2011 10:12:48 +0100 Subject: gpio: mpc8xxx: don't allow input-only pins to be output for MPC5121 Add a 5121-custom reject if an input-only pin is requested to be output (see 18.3.1.1 in the refman). Also, rewrite mach-specific quirk setup to consume less lines which scales better. Signed-off-by: Wolfram Sang [grant.likely: Fixed build error] Signed-off-by: Grant Likely --- drivers/gpio/gpio-mpc8xxx.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c index ec3fcf0a7e1..5cd04b65c55 100644 --- a/drivers/gpio/gpio-mpc8xxx.c +++ b/drivers/gpio/gpio-mpc8xxx.c @@ -132,6 +132,15 @@ static int mpc8xxx_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val return 0; } +static int mpc5121_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val) +{ + /* GPIO 28..31 are input only on MPC5121 */ + if (gpio >= 28) + return -EINVAL; + + return mpc8xxx_gpio_dir_out(gc, gpio, val); +} + static int mpc8xxx_gpio_to_irq(struct gpio_chip *gc, unsigned offset) { struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); @@ -340,11 +349,10 @@ static void __init mpc8xxx_add_controller(struct device_node *np) mm_gc->save_regs = mpc8xxx_gpio_save_regs; gc->ngpio = MPC8XXX_GPIO_PINS; gc->direction_input = mpc8xxx_gpio_dir_in; - gc->direction_output = mpc8xxx_gpio_dir_out; - if (of_device_is_compatible(np, "fsl,mpc8572-gpio")) - gc->get = mpc8572_gpio_get; - else - gc->get = mpc8xxx_gpio_get; + gc->direction_output = of_device_is_compatible(np, "fsl,mpc5121-gpio") ? + mpc5121_gpio_dir_out : mpc8xxx_gpio_dir_out; + gc->get = of_device_is_compatible(np, "fsl,mpc8572-gpio") ? + mpc8572_gpio_get : mpc8xxx_gpio_get; gc->set = mpc8xxx_gpio_set; gc->to_irq = mpc8xxx_gpio_to_irq; -- cgit v1.2.3 From 619a5182d1f38a3d629ee48e04fa182ef9170052 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 13 Dec 2011 00:02:28 +0100 Subject: PCI hotplug: Always allow acpiphp to handle non-PCIe bridges Commit 0d52f54e2ef64c189dedc332e680b2eb4a34590a (PCI / ACPI: Make acpiphp ignore root bridges using PCIe native hotplug) added code that made the acpiphp driver completely ignore PCIe root complexes for which the kernel had been granted control of the native PCIe hotplug feature by the BIOS through _OSC. Unfortunately, however, this was a mistake, because on some systems there were PCI bridges supporting PCI (non-PCIe) hotplug under such root complexes and those bridges should have been handled by acpiphp. For this reason, revert the changes made by the commit mentioned above and make register_slot() in drivers/pci/hotplug/acpiphp_glue.c avoid registering hotplug slots for PCIe ports that belong to root complexes with native PCIe hotplug enabled (which means that the BIOS has granted the kernel control of this feature for the given root complex). This is reported to address the original issue fixed by commit 0d52f54e2ef64c189dedc332e680b2eb4a34590a and to work on the system where that commit broke things. Signed-off-by: Rafael J. Wysocki Signed-off-by: Jesse Barnes --- drivers/pci/hotplug/acpiphp_glue.c | 29 ++++++++++++----------------- 1 file changed, 12 insertions(+), 17 deletions(-) diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index fce1c54a0c8..68360d5b494 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -132,6 +132,18 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv) if (!acpi_pci_check_ejectable(pbus, handle) && !is_dock_device(handle)) return AE_OK; + pdev = pbus->self; + if (pdev && pci_is_pcie(pdev)) { + tmp = acpi_find_root_bridge_handle(pdev); + if (tmp) { + struct acpi_pci_root *root = acpi_pci_find_root(tmp); + + if (root && (root->osc_control_set & + OSC_PCI_EXPRESS_NATIVE_HP_CONTROL)) + return AE_OK; + } + } + acpi_evaluate_integer(handle, "_ADR", NULL, &adr); device = (adr >> 16) & 0xffff; function = adr & 0xffff; @@ -459,17 +471,8 @@ static int add_bridge(acpi_handle handle) { acpi_status status; unsigned long long tmp; - struct acpi_pci_root *root; acpi_handle dummy_handle; - /* - * We shouldn't use this bridge if PCIe native hotplug control has been - * granted by the BIOS for it. - */ - root = acpi_pci_find_root(handle); - if (root && (root->osc_control_set & OSC_PCI_EXPRESS_NATIVE_HP_CONTROL)) - return -ENODEV; - /* if the bridge doesn't have _STA, we assume it is always there */ status = acpi_get_handle(handle, "_STA", &dummy_handle); if (ACPI_SUCCESS(status)) { @@ -1385,19 +1388,11 @@ static void handle_hotplug_event_func(acpi_handle handle, u32 type, static acpi_status find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv) { - struct acpi_pci_root *root; int *count = (int *)context; if (!acpi_is_root_bridge(handle)) return AE_OK; - root = acpi_pci_find_root(handle); - if (!root) - return AE_OK; - - if (root->osc_control_set & OSC_PCI_EXPRESS_NATIVE_HP_CONTROL) - return AE_OK; - (*count)++; acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, handle_hotplug_event_bridge, NULL); -- cgit v1.2.3 From 9d5a09e659f8414dd3713e2acbfaf8a9e9794aa1 Mon Sep 17 00:00:00 2001 From: Yehuda Sadeh Date: Tue, 13 Dec 2011 09:57:44 -0800 Subject: ceph: add missing spin_unlock at ceph_mdsc_build_path() one of the paths was missing spin_unlock Signed-off-by: Yehuda Sadeh --- fs/ceph/mds_client.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 34bc35084ae..6203d805eb4 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -1495,6 +1495,7 @@ retry: pos, temp); } else if (stop_on_nosnap && inode && ceph_snap(inode) == CEPH_NOSNAP) { + spin_unlock(&temp->d_lock); break; } else { pos -= temp->d_name.len; -- cgit v1.2.3 From 93b2ec0128c431148b216b8f7337c1a52131ef03 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 9 Dec 2011 09:39:15 +1100 Subject: rtc: Expire alarms after the time is set. If the alarm time programming in the rtc is ever in the past, it won't fire, and any other alarm will be queued after it so they won't fire either. So any time that the alarm might be in the past, we need to trigger the irq handler to ensure the old alarm is cleared and the timer queue is fully in the future. This can happen: - when we first initialise the alarm - when we set the time in the rtc. so follow both of these by scheduling the timer work function. CC: stable@kernel.org Signed-off-by: NeilBrown [Also catch set_mmss case -jstultz] Signed-off-by: John Stultz --- drivers/rtc/interface.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index fa4d9f32418..3bcc7cfcaba 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -73,6 +73,8 @@ int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm) err = -EINVAL; mutex_unlock(&rtc->ops_lock); + /* A timer might have just expired */ + schedule_work(&rtc->irqwork); return err; } EXPORT_SYMBOL_GPL(rtc_set_time); @@ -112,6 +114,8 @@ int rtc_set_mmss(struct rtc_device *rtc, unsigned long secs) err = -EINVAL; mutex_unlock(&rtc->ops_lock); + /* A timer might have just expired */ + schedule_work(&rtc->irqwork); return err; } @@ -403,6 +407,8 @@ int rtc_initialize_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) timerqueue_add(&rtc->timerqueue, &rtc->aie_timer.node); } mutex_unlock(&rtc->ops_lock); + /* maybe that was in the past.*/ + schedule_work(&rtc->irqwork); return err; } EXPORT_SYMBOL_GPL(rtc_initialize_alarm); -- cgit v1.2.3 From c3b79770e51ab1fd4201f3b54edf30113b9ce74f Mon Sep 17 00:00:00 2001 From: John Stultz Date: Mon, 12 Dec 2011 13:57:52 -0800 Subject: rtc: m41t80: Workaround broken alarm functionality The m41t80 driver can read and set the alarm, but it doesn't seem to have a functional alarm irq. This causes failures when the generic core sees alarm functions, but then cannot use them properly for things like UIE mode. Disabling the alarm functions allows proper error reporting, and possible fallback to emulated modes. Once someone fixes the alarm irq functionality, this can be restored. CC: stable@kernel.org CC: Matt Turner CC: Nico Macrionitis CC: Atsushi Nemoto Reported-by: Matt Turner Reported-by: Nico Macrionitis Tested-by: Nico Macrionitis Signed-off-by: John Stultz --- drivers/rtc/rtc-m41t80.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c index eda128fc1d3..64aedd8cc09 100644 --- a/drivers/rtc/rtc-m41t80.c +++ b/drivers/rtc/rtc-m41t80.c @@ -357,10 +357,19 @@ static int m41t80_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *t) static struct rtc_class_ops m41t80_rtc_ops = { .read_time = m41t80_rtc_read_time, .set_time = m41t80_rtc_set_time, + /* + * XXX - m41t80 alarm functionality is reported broken. + * until it is fixed, don't register alarm functions. + * .read_alarm = m41t80_rtc_read_alarm, .set_alarm = m41t80_rtc_set_alarm, + */ .proc = m41t80_rtc_proc, + /* + * See above comment on broken alarm + * .alarm_irq_enable = m41t80_rtc_alarm_irq_enable, + */ }; #if defined(CONFIG_RTC_INTF_SYSFS) || defined(CONFIG_RTC_INTF_SYSFS_MODULE) -- cgit v1.2.3 From e5fe29c7198a1f6616286dfc8602a69da165cb3f Mon Sep 17 00:00:00 2001 From: Felipe Contreras Date: Thu, 8 Dec 2011 22:23:00 +0200 Subject: ARM: OMAP: rx51: fix USB Commit 10299e2e4e3ed3b16503d4e04edd48b33083f4e2 (ARM: RX-51: Enable isp1704 power on/off) added power management for isp1704. However, the transceiver should be powered on by default, otherwise USB doesn't work at all for networking during boot. All kernels after v3.0 are affected. Cc: stable@kernel.org Signed-off-by: Felipe Contreras Reviewed-by: Sebastian Reichel [tony@atomide.com: updated comments] Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-rx51-peripherals.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c index ba1aa07bdb2..c15c5c9c908 100644 --- a/arch/arm/mach-omap2/board-rx51-peripherals.c +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c @@ -193,7 +193,7 @@ static struct platform_device rx51_charger_device = { static void __init rx51_charger_init(void) { WARN_ON(gpio_request_one(RX51_USB_TRANSCEIVER_RST_GPIO, - GPIOF_OUT_INIT_LOW, "isp1704_reset")); + GPIOF_OUT_INIT_HIGH, "isp1704_reset")); platform_device_register(&rx51_charger_device); } -- cgit v1.2.3 From bb3c36863e8001fc21a88bebfdead4da4c23e848 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 13 Dec 2011 17:35:06 -0500 Subject: ipv6: Check dest prefix length on original route not copied one in rt6_alloc_cow(). After commit 8e2ec639173f325977818c45011ee176ef2b11f6 ("ipv6: don't use inetpeer to store metrics for routes.") the test in rt6_alloc_cow() for setting the ANYCAST flag is now wrong. 'rt' will always now have a plen of 128, because it is set explicitly to 128 by ip6_rt_copy. So to restore the semantics of the test, check the destination prefix length of 'ort'. Signed-off-by: David S. Miller --- net/ipv6/route.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 3399dd32628..b582a0a0f1c 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -728,7 +728,7 @@ static struct rt6_info *rt6_alloc_cow(const struct rt6_info *ort, int attempts = !in_softirq(); if (!(rt->rt6i_flags&RTF_GATEWAY)) { - if (rt->rt6i_dst.plen != 128 && + if (ort->rt6i_dst.plen != 128 && ipv6_addr_equal(&ort->rt6i_dst.addr, daddr)) rt->rt6i_flags |= RTF_ANYCAST; ipv6_addr_copy(&rt->rt6i_gateway, daddr); -- cgit v1.2.3 From 0a7e22e61e07a2ea479511f9620858be2f1507e8 Mon Sep 17 00:00:00 2001 From: Omar Ramirez Luna Date: Mon, 14 Nov 2011 20:16:57 -0600 Subject: staging: tidspbridge: include module.h by default Fixes compilation break when compiled as part of the kernel: drivers/staging/tidspbridge/rmgr/drv_interface.c:134: error: expected declaration specifiers or '...' before string constant drivers/staging/tidspbridge/rmgr/drv_interface.c:134: warning: data definition has no type or storage class drivers/staging/tidspbridge/rmgr/drv_interface.c:134: warning: type defaults to 'int' in declaration of 'MODULE_AUTHOR' drivers/staging/tidspbridge/rmgr/drv_interface.c:134: warning: function declaration isn't a prototype drivers/staging/tidspbridge/rmgr/drv_interface.c:135: error: expected declaration specifiers or '...' before string constant drivers/staging/tidspbridge/rmgr/drv_interface.c:135: warning: data definition has no type or storage class drivers/staging/tidspbridge/rmgr/drv_interface.c:135: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE' drivers/staging/tidspbridge/rmgr/drv_interface.c:135: warning: function declaration isn't a prototype drivers/staging/tidspbridge/rmgr/drv_interface.c:136: error: expected declaration specifiers or '...' before string constant drivers/staging/tidspbridge/rmgr/drv_interface.c:136: warning: data definition has no type or storage class drivers/staging/tidspbridge/rmgr/drv_interface.c:136: warning: type defaults to 'int' in declaration of 'MODULE_VERSION' drivers/staging/tidspbridge/rmgr/drv_interface.c:136: warning: function declaration isn't a prototype drivers/staging/tidspbridge/rmgr/drv_interface.c: In function 'omap34_xx_bridge_probe': drivers/staging/tidspbridge/rmgr/drv_interface.c:359: error: 'THIS_MODULE' undeclared (first use in this function) drivers/staging/tidspbridge/rmgr/drv_interface.c:359: error: (Each undeclared identifier is reported only once drivers/staging/tidspbridge/rmgr/drv_interface.c:359: error: for each function it appears in.) Signed-off-by: Omar Ramirez Luna Signed-off-by: Greg Kroah-Hartman --- drivers/staging/tidspbridge/rmgr/drv_interface.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/staging/tidspbridge/rmgr/drv_interface.c b/drivers/staging/tidspbridge/rmgr/drv_interface.c index c43c7e3421c..76cfc6edecd 100644 --- a/drivers/staging/tidspbridge/rmgr/drv_interface.c +++ b/drivers/staging/tidspbridge/rmgr/drv_interface.c @@ -24,11 +24,7 @@ #include #include #include - -#ifdef MODULE #include -#endif - #include #include #include -- cgit v1.2.3 From ed625b9143ee53fe610320908c89e22635ee6e87 Mon Sep 17 00:00:00 2001 From: Omar Ramirez Luna Date: Fri, 18 Nov 2011 16:18:54 -0600 Subject: staging: tidspbridge: request dmtimer clocks on init Given that dm timer framework doesn't support request of clocks by soft | hard irqs because some recent changes, tidspbridge needs to request its clocks on init and enable/disable them on demand. This was first seen on 3.2-rc1. Signed-off-by: Omar Ramirez Luna Signed-off-by: Greg Kroah-Hartman --- drivers/staging/tidspbridge/core/dsp-clock.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/staging/tidspbridge/core/dsp-clock.c b/drivers/staging/tidspbridge/core/dsp-clock.c index 3d1279c424a..7eb56178fb6 100644 --- a/drivers/staging/tidspbridge/core/dsp-clock.c +++ b/drivers/staging/tidspbridge/core/dsp-clock.c @@ -54,6 +54,7 @@ /* Bridge GPT id (1 - 4), DM Timer id (5 - 8) */ #define DMT_ID(id) ((id) + 4) +#define DM_TIMER_CLOCKS 4 /* Bridge MCBSP id (6 - 10), OMAP Mcbsp id (0 - 4) */ #define MCBSP_ID(id) ((id) - 6) @@ -114,8 +115,13 @@ static s8 get_clk_type(u8 id) */ void dsp_clk_exit(void) { + int i; + dsp_clock_disable_all(dsp_clocks); + for (i = 0; i < DM_TIMER_CLOCKS; i++) + omap_dm_timer_free(timer[i]); + clk_put(iva2_clk); clk_put(ssi.sst_fck); clk_put(ssi.ssr_fck); @@ -130,9 +136,13 @@ void dsp_clk_exit(void) void dsp_clk_init(void) { static struct platform_device dspbridge_device; + int i, id; dspbridge_device.dev.bus = &platform_bus_type; + for (i = 0, id = 5; i < DM_TIMER_CLOCKS; i++, id++) + timer[i] = omap_dm_timer_request_specific(id); + iva2_clk = clk_get(&dspbridge_device.dev, "iva2_ck"); if (IS_ERR(iva2_clk)) dev_err(bridge, "failed to get iva2 clock %p\n", iva2_clk); @@ -204,8 +214,7 @@ int dsp_clk_enable(enum dsp_clk_id clk_id) clk_enable(iva2_clk); break; case GPT_CLK: - timer[clk_id - 1] = - omap_dm_timer_request_specific(DMT_ID(clk_id)); + status = omap_dm_timer_start(timer[clk_id - 1]); break; #ifdef CONFIG_OMAP_MCBSP case MCBSP_CLK: @@ -281,7 +290,7 @@ int dsp_clk_disable(enum dsp_clk_id clk_id) clk_disable(iva2_clk); break; case GPT_CLK: - omap_dm_timer_free(timer[clk_id - 1]); + status = omap_dm_timer_stop(timer[clk_id - 1]); break; #ifdef CONFIG_OMAP_MCBSP case MCBSP_CLK: -- cgit v1.2.3 From c7caf4d4c56aee40b995f5858ccf1c814f3d2da2 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Sun, 11 Dec 2011 10:27:54 -0600 Subject: staging: r8712u: Add new USB ID Add USB ID for Sitecom WLA-2000 v1.001 WLAN. Reported-and-tested-by: Roland Gruber Signed-off-by: Larry Finger Cc: Stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8712/usb_intf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c index fb2e89c3056..5385da2e9cd 100644 --- a/drivers/staging/rtl8712/usb_intf.c +++ b/drivers/staging/rtl8712/usb_intf.c @@ -89,6 +89,7 @@ static struct usb_device_id rtl871x_usb_id_tbl[] = { {USB_DEVICE(0x0DF6, 0x0045)}, {USB_DEVICE(0x0DF6, 0x0059)}, /* 11n mode disable */ {USB_DEVICE(0x0DF6, 0x004B)}, + {USB_DEVICE(0x0DF6, 0x005D)}, {USB_DEVICE(0x0DF6, 0x0063)}, /* Sweex */ {USB_DEVICE(0x177F, 0x0154)}, -- cgit v1.2.3 From ea51d132dbf9b00063169c1159bee253d9649224 Mon Sep 17 00:00:00 2001 From: Andrea Arcangeli Date: Tue, 13 Dec 2011 21:41:15 -0500 Subject: ext4: avoid hangs in ext4_da_should_update_i_disksize() If the pte mapping in generic_perform_write() is unmapped between iov_iter_fault_in_readable() and iov_iter_copy_from_user_atomic(), the "copied" parameter to ->end_write can be zero. ext4 couldn't cope with it with delayed allocations enabled. This skips the i_disksize enlargement logic if copied is zero and no new data was appeneded to the inode. gdb> bt #0 0xffffffff811afe80 in ext4_da_should_update_i_disksize (file=0xffff88003f606a80, mapping=0xffff88001d3824e0, pos=0x1\ 08000, len=0x1000, copied=0x0, page=0xffffea0000d792e8, fsdata=0x0) at fs/ext4/inode.c:2467 #1 ext4_da_write_end (file=0xffff88003f606a80, mapping=0xffff88001d3824e0, pos=0x108000, len=0x1000, copied=0x0, page=0\ xffffea0000d792e8, fsdata=0x0) at fs/ext4/inode.c:2512 #2 0xffffffff810d97f1 in generic_perform_write (iocb=, iov=, nr_segs=, pos=0x108000, ppos=0xffff88001e26be40, count=, written=0x0) at mm/filemap.c:2440 #3 generic_file_buffered_write (iocb=, iov=, nr_segs=, p\ os=0x108000, ppos=0xffff88001e26be40, count=, written=0x0) at mm/filemap.c:2482 #4 0xffffffff810db5d1 in __generic_file_aio_write (iocb=0xffff88001e26bde8, iov=0xffff88001e26bec8, nr_segs=0x1, ppos=0\ xffff88001e26be40) at mm/filemap.c:2600 #5 0xffffffff810db853 in generic_file_aio_write (iocb=0xffff88001e26bde8, iov=0xffff88001e26bec8, nr_segs=, pos=) at mm/filemap.c:2632 #6 0xffffffff811a71aa in ext4_file_write (iocb=0xffff88001e26bde8, iov=0xffff88001e26bec8, nr_segs=0x1, pos=0x108000) a\ t fs/ext4/file.c:136 #7 0xffffffff811375aa in do_sync_write (filp=0xffff88003f606a80, buf=, len=, \ ppos=0xffff88001e26bf48) at fs/read_write.c:406 #8 0xffffffff81137e56 in vfs_write (file=0xffff88003f606a80, buf=0x1ec2960
, count=0x4\ 000, pos=0xffff88001e26bf48) at fs/read_write.c:435 #9 0xffffffff8113816c in sys_write (fd=, buf=0x1ec2960
, count=0x\ 4000) at fs/read_write.c:487 #10 #11 0x00007f120077a390 in __brk_reservation_fn_dmi_alloc__ () #12 0x0000000000000000 in ?? () gdb> print offset $22 = 0xffffffffffffffff gdb> print idx $23 = 0xffffffff gdb> print inode->i_blkbits $24 = 0xc gdb> up #1 ext4_da_write_end (file=0xffff88003f606a80, mapping=0xffff88001d3824e0, pos=0x108000, len=0x1000, copied=0x0, page=0\ xffffea0000d792e8, fsdata=0x0) at fs/ext4/inode.c:2512 2512 if (ext4_da_should_update_i_disksize(page, end)) { gdb> print start $25 = 0x0 gdb> print end $26 = 0xffffffffffffffff gdb> print pos $27 = 0x108000 gdb> print new_i_size $28 = 0x108000 gdb> print ((struct ext4_inode_info *)((char *)inode-((int)(&((struct ext4_inode_info *)0)->vfs_inode))))->i_disksize $29 = 0xd9000 gdb> down 2467 for (i = 0; i < idx; i++) gdb> print i $30 = 0xd44acbee This is 100% reproducible with some autonuma development code tuned in a very aggressive manner (not normal way even for knumad) which does "exotic" changes to the ptes. It wouldn't normally trigger but I don't see why it can't happen normally if the page is added to swap cache in between the two faults leading to "copied" being zero (which then hangs in ext4). So it should be fixed. Especially possible with lumpy reclaim (albeit disabled if compaction is enabled) as that would ignore the young bits in the ptes. Signed-off-by: Andrea Arcangeli Signed-off-by: "Theodore Ts'o" Cc: stable@kernel.org --- fs/ext4/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index d2c86633811..b5edc6e4bab 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2508,7 +2508,7 @@ static int ext4_da_write_end(struct file *file, */ new_i_size = pos + copied; - if (new_i_size > EXT4_I(inode)->i_disksize) { + if (copied && new_i_size > EXT4_I(inode)->i_disksize) { if (ext4_da_should_update_i_disksize(page, end)) { down_write(&EXT4_I(inode)->i_data_sem); if (new_i_size > EXT4_I(inode)->i_disksize) { -- cgit v1.2.3 From 13a79a4741d37fda2fbafb953f0f301dc007928f Mon Sep 17 00:00:00 2001 From: Yongqiang Yang Date: Tue, 13 Dec 2011 21:51:55 -0500 Subject: ext4: avoid potential hang in mpage_submit_io() when blocksize < pagesize If there is an unwritten but clean buffer in a page and there is a dirty buffer after the buffer, then mpage_submit_io does not write the dirty buffer out. As a result, da_writepages loops forever. This patch fixes the problem by checking dirty flag. Signed-off-by: Yongqiang Yang Signed-off-by: "Theodore Ts'o" Cc: stable@kernel.org --- fs/ext4/inode.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index b5edc6e4bab..cf20e1fe778 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1339,8 +1339,11 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd, clear_buffer_unwritten(bh); } - /* skip page if block allocation undone */ - if (buffer_delay(bh) || buffer_unwritten(bh)) + /* + * skip page if block allocation undone and + * block is dirty + */ + if (ext4_bh_delay_or_unwritten(NULL, bh)) skip_page = 1; bh = bh->b_this_page; block_start += bh->b_size; -- cgit v1.2.3 From 093e6e3666f47d29763a235b404c84ee47ba8bb0 Mon Sep 17 00:00:00 2001 From: Yongqiang Yang Date: Tue, 13 Dec 2011 22:05:05 -0500 Subject: ext4: correctly handle pages w/o buffers in ext4_discard_partial_buffers() If a page has been read into memory and never been written, it has no buffers, but we should handle the page in truncate or punch hole. VFS code of writing operations has handled holes correctly, so this patch removes the code handling holes in writing operations. Signed-off-by: Yongqiang Yang Signed-off-by: "Theodore Ts'o" Cc: stable@kernel.org --- fs/ext4/inode.c | 41 ++--------------------------------------- 1 file changed, 2 insertions(+), 39 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index cf20e1fe778..92655fd8965 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2390,7 +2390,6 @@ static int ext4_da_write_begin(struct file *file, struct address_space *mapping, pgoff_t index; struct inode *inode = mapping->host; handle_t *handle; - loff_t page_len; index = pos >> PAGE_CACHE_SHIFT; @@ -2437,13 +2436,6 @@ retry: */ if (pos + len > inode->i_size) ext4_truncate_failed_write(inode); - } else { - page_len = pos & (PAGE_CACHE_SIZE - 1); - if (page_len > 0) { - ret = ext4_discard_partial_page_buffers_no_lock(handle, - inode, page, pos - page_len, page_len, - EXT4_DISCARD_PARTIAL_PG_ZERO_UNMAPPED); - } } if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) @@ -2486,7 +2478,6 @@ static int ext4_da_write_end(struct file *file, loff_t new_i_size; unsigned long start, end; int write_mode = (int)(unsigned long)fsdata; - loff_t page_len; if (write_mode == FALL_BACK_TO_NONDELALLOC) { if (ext4_should_order_data(inode)) { @@ -2535,16 +2526,6 @@ static int ext4_da_write_end(struct file *file, } ret2 = generic_write_end(file, mapping, pos, len, copied, page, fsdata); - - page_len = PAGE_CACHE_SIZE - - ((pos + copied - 1) & (PAGE_CACHE_SIZE - 1)); - - if (page_len > 0) { - ret = ext4_discard_partial_page_buffers_no_lock(handle, - inode, page, pos + copied - 1, page_len, - EXT4_DISCARD_PARTIAL_PG_ZERO_UNMAPPED); - } - copied = ret2; if (ret2 < 0) ret = ret2; @@ -3206,26 +3187,8 @@ int ext4_discard_partial_page_buffers_no_lock(handle_t *handle, iblock = index << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits); - if (!page_has_buffers(page)) { - /* - * If the range to be discarded covers a partial block - * we need to get the page buffers. This is because - * partial blocks cannot be released and the page needs - * to be updated with the contents of the block before - * we write the zeros on top of it. - */ - if ((from & (blocksize - 1)) || - ((from + length) & (blocksize - 1))) { - create_empty_buffers(page, blocksize, 0); - } else { - /* - * If there are no partial blocks, - * there is nothing to update, - * so we can return now - */ - return 0; - } - } + if (!page_has_buffers(page)) + create_empty_buffers(page, blocksize, 0); /* Find the buffer that contains "offset" */ bh = page_buffers(page); -- cgit v1.2.3 From 5b5ffa49d4bbb8ca4c41c094261660264f16bd20 Mon Sep 17 00:00:00 2001 From: Yongqiang Yang Date: Tue, 13 Dec 2011 22:13:42 -0500 Subject: ext4: remove a wrong BUG_ON in ext4_ext_convert_to_initialized If a file is fallocated on a hole, map->m_lblk + map->m_len may be greater than ee_block + ee_len. Signed-off-by: Yongqiang Yang Signed-off-by: "Theodore Ts'o" Cc: stable@kernel.org --- fs/ext4/extents.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 61cdb97f338..607b1557d29 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2955,7 +2955,6 @@ static int ext4_ext_convert_to_initialized(handle_t *handle, /* Pre-conditions */ BUG_ON(!ext4_ext_is_uninitialized(ex)); BUG_ON(!in_range(map->m_lblk, ee_block, ee_len)); - BUG_ON(map->m_lblk + map->m_len > ee_block + ee_len); /* * Attempt to transfer newly initialized blocks from the currently -- cgit v1.2.3 From 5a0dc7365c240795bf190766eba7a27600be3b3e Mon Sep 17 00:00:00 2001 From: Yongqiang Yang Date: Tue, 13 Dec 2011 22:29:12 -0500 Subject: ext4: handle EOF correctly in ext4_bio_write_page() We need to zero out part of a page which beyond EOF before setting uptodate, otherwise, mapread or write will see non-zero data beyond EOF. Signed-off-by: Yongqiang Yang Signed-off-by: "Theodore Ts'o" Cc: stable@kernel.org --- fs/ext4/page-io.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index 7ce1d0b19c9..7e106c810c6 100644 --- a/fs/ext4/page-io.c +++ b/fs/ext4/page-io.c @@ -385,6 +385,18 @@ int ext4_bio_write_page(struct ext4_io_submit *io, block_end = block_start + blocksize; if (block_start >= len) { + /* + * Comments copied from block_write_full_page_endio: + * + * The page straddles i_size. It must be zeroed out on + * each and every writepage invocation because it may + * be mmapped. "A file is mapped in multiples of the + * page size. For a file that is not a multiple of + * the page size, the remaining memory is zeroed when + * mapped, and writes to that region are not written + * out to the file." + */ + zero_user_segment(page, block_start, block_end); clear_buffer_dirty(bh); set_buffer_uptodate(bh); continue; -- cgit v1.2.3 From 759c361eb95964d0d786f8962224dd0d9e780e6e Mon Sep 17 00:00:00 2001 From: Djalal Harouni Date: Tue, 13 Dec 2011 02:47:29 +0100 Subject: fs/ncpfs: fix error paths and goto statements in ncp_fill_super() The label 'out_bdi' should be followed by bdi_destroy() instead of fput() which should be after the 'out_fput' label. If bdi_setup_and_register() fails then jump to the 'out_fput' label instead of the 'out_bdi' one. If fget(data.info_fd) fails then jump to the previously fixed 'out_bdi' label to call bdi_destroy() otherwise the bdi object will not be destroyed. Compile tested only. Signed-off-by: Djalal Harouni Signed-off-by: Al Viro --- fs/ncpfs/inode.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c index 5b5fa33b6b9..cbd1a61c110 100644 --- a/fs/ncpfs/inode.c +++ b/fs/ncpfs/inode.c @@ -548,7 +548,7 @@ static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent) error = bdi_setup_and_register(&server->bdi, "ncpfs", BDI_CAP_MAP_COPY); if (error) - goto out_bdi; + goto out_fput; server->ncp_filp = ncp_filp; server->ncp_sock = sock; @@ -559,7 +559,7 @@ static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent) error = -EBADF; server->info_filp = fget(data.info_fd); if (!server->info_filp) - goto out_fput; + goto out_bdi; error = -ENOTSOCK; sock_inode = server->info_filp->f_path.dentry->d_inode; if (!S_ISSOCK(sock_inode->i_mode)) @@ -746,9 +746,9 @@ out_nls: out_fput2: if (server->info_filp) fput(server->info_filp); -out_fput: - bdi_destroy(&server->bdi); out_bdi: + bdi_destroy(&server->bdi); +out_fput: /* 23/12/1998 Marcin Dalecki : * * The previously used put_filp(ncp_filp); was bogus, since -- cgit v1.2.3 From ccc080c77cd47fde5eb097058fae930b956096eb Mon Sep 17 00:00:00 2001 From: Ajay Kumar Gupta Date: Tue, 13 Dec 2011 10:32:42 +0530 Subject: usb: musb: fix reset issue with full speed device TXMAXP register is not getting programmed correctly for a full speed device as can_bulk_split() have been removed by "0662481: usb: musb: disable double buffering when it's broken" patch. Adding back the case for can_bulk_split() to fix the reset message seen with a full speed stick. Signed-off-by: Ajay Kumar Gupta Signed-off-by: Felipe Balbi --- drivers/usb/musb/musb_host.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 60ddba8066e..79cb0af779f 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -774,6 +774,10 @@ static void musb_ep_program(struct musb *musb, u8 epnum, if (musb->double_buffer_not_ok) musb_writew(epio, MUSB_TXMAXP, hw_ep->max_packet_sz_tx); + else if (can_bulk_split(musb, qh->type)) + musb_writew(epio, MUSB_TXMAXP, packet_sz + | ((hw_ep->max_packet_sz_tx / + packet_sz) - 1) << 11); else musb_writew(epio, MUSB_TXMAXP, qh->maxpacket | -- cgit v1.2.3 From 44b7f4b98d8877e2a4427f2a2f2e42ae8227a58f Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Tue, 13 Dec 2011 20:40:45 +0100 Subject: perf events: Fix ring_buffer_wakeup() brown paperbag bug Commit 10c6db11 ("perf: Fix loss of notification with multi-event") seems to unconditionally dereference event->rb in the wakeup handler, this is wrong, there might not be a buffer attached. Signed-off-by: Will Deacon Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/20111213152651.GP20297@mudshark.cambridge.arm.com [ minor edits ] Signed-off-by: Ingo Molnar --- kernel/events/core.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index d3b9df5962c..58690af323e 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -3558,9 +3558,13 @@ static void ring_buffer_wakeup(struct perf_event *event) rcu_read_lock(); rb = rcu_dereference(event->rb); - list_for_each_entry_rcu(event, &rb->event_list, rb_entry) { + if (!rb) + goto unlock; + + list_for_each_entry_rcu(event, &rb->event_list, rb_entry) wake_up_all(&event->waitq); - } + +unlock: rcu_read_unlock(); } -- cgit v1.2.3 From 7e1e7ead88dff75b11b86ee0d5232c4591be1326 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 11 Nov 2011 20:52:01 +0100 Subject: [SCSI] fcoe: Fix preempt count leak in fcoe_filter_frames() The error exit path leaks preempt count. Add the missing put_cpu(). Signed-off-by: Thomas Gleixner Reviewed-by: Yi Zou Cc: stable@kernel.org Signed-off-by: James Bottomley --- drivers/scsi/fcoe/fcoe.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index cefbe44bb84..f3f440c955f 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -1624,6 +1624,7 @@ static inline int fcoe_filter_frames(struct fc_lport *lport, stats->InvalidCRCCount++; if (stats->InvalidCRCCount < 5) printk(KERN_WARNING "fcoe: dropping frame with CRC error\n"); + put_cpu(); return -EINVAL; } -- cgit v1.2.3 From 44f747fff6e9f027a4866c1a6864e26ae7c510c8 Mon Sep 17 00:00:00 2001 From: Steffen Maier Date: Fri, 18 Nov 2011 20:00:40 +0100 Subject: [SCSI] zfcp: return early from slave_destroy if slave_alloc returned early zfcp_scsi_slave_destroy erroneously always tried to finish its task even if the corresponding previous zfcp_scsi_slave_alloc returned early. This can lead to kernel page faults on accessing uninitialized fields of struct zfcp_scsi_dev in zfcp_erp_lun_shutdown_wait. Take the port field of the struct to determine if slave_alloc returned early. This zfcp bug is exposed by 4e6c82b (in turn fixing f7c9c6b to be compatible with 21208ae) which can call slave_destroy for a corresponding previous slave_alloc that did not finish. This patch is based on James Bottomley's fix suggestion in http://www.spinics.net/lists/linux-scsi/msg55449.html. Signed-off-by: Steffen Maier Cc: #2.6.38+ Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_scsi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 11f07f88822..b79576b64f4 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -55,6 +55,10 @@ static void zfcp_scsi_slave_destroy(struct scsi_device *sdev) { struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); + /* if previous slave_alloc returned early, there is nothing to do */ + if (!zfcp_sdev->port) + return; + zfcp_erp_lun_shutdown_wait(sdev, "scssd_1"); put_device(&zfcp_sdev->port->dev); } -- cgit v1.2.3 From 13483730a13bef372894aefcf73760f5c6c297be Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Thu, 1 Dec 2011 21:38:41 -0600 Subject: [SCSI] qla4xxx: fix flash/ddb support With open-iscsi support, target entries persisted in the FLASH were not login. Added support in the qla4xxx driver to do the login on probe time to the target entries saved in the FLASH by user. With this changes upgrade to the new kernel with open-iscsi support in qla4xxx will ensure users original target entries login on driver load Signed-off-by: Manish Rangankar Signed-off-by: Ravi Anand Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/qla4xxx/ql4_def.h | 55 +- drivers/scsi/qla4xxx/ql4_fw.h | 8 + drivers/scsi/qla4xxx/ql4_glbl.h | 16 +- drivers/scsi/qla4xxx/ql4_init.c | 239 ++++++-- drivers/scsi/qla4xxx/ql4_mbx.c | 11 + drivers/scsi/qla4xxx/ql4_os.c | 1081 ++++++++++++++++++++++++++++++++++-- drivers/scsi/qla4xxx/ql4_version.h | 2 +- 7 files changed, 1315 insertions(+), 97 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h index ace637bf254..fd5edc6e166 100644 --- a/drivers/scsi/qla4xxx/ql4_def.h +++ b/drivers/scsi/qla4xxx/ql4_def.h @@ -147,7 +147,7 @@ #define ISCSI_ALIAS_SIZE 32 /* ISCSI Alias name size */ #define ISCSI_NAME_SIZE 0xE0 /* ISCSI Name size */ -#define QL4_SESS_RECOVERY_TMO 30 /* iSCSI session */ +#define QL4_SESS_RECOVERY_TMO 120 /* iSCSI session */ /* recovery timeout */ #define LSDW(x) ((u32)((u64)(x))) @@ -173,6 +173,8 @@ #define ISNS_DEREG_TOV 5 #define HBA_ONLINE_TOV 30 #define DISABLE_ACB_TOV 30 +#define IP_CONFIG_TOV 30 +#define LOGIN_TOV 12 #define MAX_RESET_HA_RETRIES 2 @@ -240,6 +242,45 @@ struct ddb_entry { uint16_t fw_ddb_index; /* DDB firmware index */ uint32_t fw_ddb_device_state; /* F/W Device State -- see ql4_fw.h */ + uint16_t ddb_type; +#define FLASH_DDB 0x01 + + struct dev_db_entry fw_ddb_entry; + int (*unblock_sess)(struct iscsi_cls_session *cls_session); + int (*ddb_change)(struct scsi_qla_host *ha, uint32_t fw_ddb_index, + struct ddb_entry *ddb_entry, uint32_t state); + + /* Driver Re-login */ + unsigned long flags; /* DDB Flags */ + uint16_t default_relogin_timeout; /* Max time to wait for + * relogin to complete */ + atomic_t retry_relogin_timer; /* Min Time between relogins + * (4000 only) */ + atomic_t relogin_timer; /* Max Time to wait for + * relogin to complete */ + atomic_t relogin_retry_count; /* Num of times relogin has been + * retried */ + uint32_t default_time2wait; /* Default Min time between + * relogins (+aens) */ + +}; + +struct qla_ddb_index { + struct list_head list; + uint16_t fw_ddb_idx; + struct dev_db_entry fw_ddb; +}; + +#define DDB_IPADDR_LEN 64 + +struct ql4_tuple_ddb { + int port; + int tpgt; + char ip_addr[DDB_IPADDR_LEN]; + char iscsi_name[ISCSI_NAME_SIZE]; + uint16_t options; +#define DDB_OPT_IPV6 0x0e0e +#define DDB_OPT_IPV4 0x0f0f }; /* @@ -411,7 +452,7 @@ struct scsi_qla_host { #define AF_FW_RECOVERY 19 /* 0x00080000 */ #define AF_EEH_BUSY 20 /* 0x00100000 */ #define AF_PCI_CHANNEL_IO_PERM_FAILURE 21 /* 0x00200000 */ - +#define AF_BUILD_DDB_LIST 22 /* 0x00400000 */ unsigned long dpc_flags; #define DPC_RESET_HA 1 /* 0x00000002 */ @@ -604,6 +645,7 @@ struct scsi_qla_host { uint16_t bootload_minor; uint16_t bootload_patch; uint16_t bootload_build; + uint16_t def_timeout; /* Default login timeout */ uint32_t flash_state; #define QLFLASH_WAITING 0 @@ -623,6 +665,11 @@ struct scsi_qla_host { uint16_t iscsi_pci_func_cnt; uint8_t model_name[16]; struct completion disable_acb_comp; + struct dma_pool *fw_ddb_dma_pool; +#define DDB_DMA_BLOCK_SIZE 512 + uint16_t pri_ddb_idx; + uint16_t sec_ddb_idx; + int is_reset; }; struct ql4_task_data { @@ -835,6 +882,10 @@ static inline int ql4xxx_reset_active(struct scsi_qla_host *ha) /*---------------------------------------------------------------------------*/ /* Defines for qla4xxx_initialize_adapter() and qla4xxx_recover_adapter() */ + +#define INIT_ADAPTER 0 +#define RESET_ADAPTER 1 + #define PRESERVE_DDB_LIST 0 #define REBUILD_DDB_LIST 1 diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h index cbd5a20dbbd..4ac07f88252 100644 --- a/drivers/scsi/qla4xxx/ql4_fw.h +++ b/drivers/scsi/qla4xxx/ql4_fw.h @@ -12,6 +12,7 @@ #define MAX_PRST_DEV_DB_ENTRIES 64 #define MIN_DISC_DEV_DB_ENTRY MAX_PRST_DEV_DB_ENTRIES #define MAX_DEV_DB_ENTRIES 512 +#define MAX_DEV_DB_ENTRIES_40XX 256 /************************************************************************* * @@ -604,6 +605,13 @@ struct addr_ctrl_blk { uint8_t res14[140]; /* 274-2FF */ }; +#define IP_ADDR_COUNT 4 /* Total 4 IP address supported in one interface + * One IPv4, one IPv6 link local and 2 IPv6 + */ + +#define IP_STATE_MASK 0x0F000000 +#define IP_STATE_SHIFT 24 + struct init_fw_ctrl_blk { struct addr_ctrl_blk pri; /* struct addr_ctrl_blk sec;*/ diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h index 160db9d5ea2..d0dd4b33020 100644 --- a/drivers/scsi/qla4xxx/ql4_glbl.h +++ b/drivers/scsi/qla4xxx/ql4_glbl.h @@ -13,7 +13,7 @@ struct iscsi_cls_conn; int qla4xxx_hw_reset(struct scsi_qla_host *ha); int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a); int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb *srb); -int qla4xxx_initialize_adapter(struct scsi_qla_host *ha); +int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset); int qla4xxx_soft_reset(struct scsi_qla_host *ha); irqreturn_t qla4xxx_intr_handler(int irq, void *dev_id); @@ -153,10 +153,13 @@ int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t fw_ddb_index, uint32_t *mbx_sts); int qla4xxx_clear_ddb_entry(struct scsi_qla_host *ha, uint32_t fw_ddb_index); int qla4xxx_send_passthru0(struct iscsi_task *task); +void qla4xxx_free_ddb_index(struct scsi_qla_host *ha); int qla4xxx_get_mgmt_data(struct scsi_qla_host *ha, uint16_t fw_ddb_index, uint16_t stats_size, dma_addr_t stats_dma); void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry); +void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry); int qla4xxx_bootdb_by_index(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index); @@ -169,11 +172,22 @@ int qla4xxx_set_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma, int qla4xxx_restore_factory_defaults(struct scsi_qla_host *ha, uint32_t region, uint32_t field0, uint32_t field1); +int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index); +void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session); +int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session); +int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session); +int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index, + struct ddb_entry *ddb_entry, uint32_t state); +int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index, + struct ddb_entry *ddb_entry, uint32_t state); +void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset); /* BSG Functions */ int qla4xxx_bsg_request(struct bsg_job *bsg_job); int qla4xxx_process_vendor_specific(struct bsg_job *bsg_job); +void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry); + extern int ql4xextended_error_logging; extern int ql4xdontresethba; extern int ql4xenablemsix; diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 3075fbaef55..0497873a1dd 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -773,14 +773,14 @@ int qla4xxx_start_firmware(struct scsi_qla_host *ha) * be freed so that when login happens from user space there are free DDB * indices available. **/ -static void qla4xxx_free_ddb_index(struct scsi_qla_host *ha) +void qla4xxx_free_ddb_index(struct scsi_qla_host *ha) { int max_ddbs; int ret; uint32_t idx = 0, next_idx = 0; uint32_t state = 0, conn_err = 0; - max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : + max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : MAX_DEV_DB_ENTRIES; for (idx = 0; idx < max_ddbs; idx = next_idx) { @@ -804,7 +804,6 @@ static void qla4xxx_free_ddb_index(struct scsi_qla_host *ha) } } - /** * qla4xxx_initialize_adapter - initiailizes hba * @ha: Pointer to host adapter structure. @@ -812,7 +811,7 @@ static void qla4xxx_free_ddb_index(struct scsi_qla_host *ha) * This routine parforms all of the steps necessary to initialize the adapter. * **/ -int qla4xxx_initialize_adapter(struct scsi_qla_host *ha) +int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset) { int status = QLA_ERROR; @@ -840,7 +839,8 @@ int qla4xxx_initialize_adapter(struct scsi_qla_host *ha) if (status == QLA_ERROR) goto exit_init_hba; - qla4xxx_free_ddb_index(ha); + if (is_reset == RESET_ADAPTER) + qla4xxx_build_ddb_list(ha, is_reset); set_bit(AF_ONLINE, &ha->flags); exit_init_hba: @@ -855,38 +855,12 @@ exit_init_hba: return status; } -/** - * qla4xxx_process_ddb_changed - process ddb state change - * @ha - Pointer to host adapter structure. - * @fw_ddb_index - Firmware's device database index - * @state - Device state - * - * This routine processes a Decive Database Changed AEN Event. - **/ -int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, - uint32_t state, uint32_t conn_err) +int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index, + struct ddb_entry *ddb_entry, uint32_t state) { - struct ddb_entry * ddb_entry; uint32_t old_fw_ddb_device_state; int status = QLA_ERROR; - /* check for out of range index */ - if (fw_ddb_index >= MAX_DDB_ENTRIES) - goto exit_ddb_event; - - /* Get the corresponging ddb entry */ - ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); - /* Device does not currently exist in our database. */ - if (ddb_entry == NULL) { - ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n", - __func__, fw_ddb_index); - - if (state == DDB_DS_NO_CONNECTION_ACTIVE) - clear_bit(fw_ddb_index, ha->ddb_idx_map); - - goto exit_ddb_event; - } - old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; DEBUG2(ql4_printk(KERN_INFO, ha, "%s: DDB - old state = 0x%x, new state = 0x%x for " @@ -900,9 +874,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, switch (state) { case DDB_DS_SESSION_ACTIVE: case DDB_DS_DISCOVERY: - iscsi_conn_start(ddb_entry->conn); - iscsi_conn_login_event(ddb_entry->conn, - ISCSI_CONN_STATE_LOGGED_IN); + ddb_entry->unblock_sess(ddb_entry->sess); qla4xxx_update_session_conn_param(ha, ddb_entry); status = QLA_SUCCESS; break; @@ -936,9 +908,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, switch (state) { case DDB_DS_SESSION_ACTIVE: case DDB_DS_DISCOVERY: - iscsi_conn_start(ddb_entry->conn); - iscsi_conn_login_event(ddb_entry->conn, - ISCSI_CONN_STATE_LOGGED_IN); + ddb_entry->unblock_sess(ddb_entry->sess); qla4xxx_update_session_conn_param(ha, ddb_entry); status = QLA_SUCCESS; break; @@ -954,7 +924,198 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, __func__)); break; } + return status; +} + +void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry) +{ + /* + * This triggers a relogin. After the relogin_timer + * expires, the relogin gets scheduled. We must wait a + * minimum amount of time since receiving an 0x8014 AEN + * with failed device_state or a logout response before + * we can issue another relogin. + * + * Firmware pads this timeout: (time2wait +1). + * Driver retry to login should be longer than F/W. + * Otherwise F/W will fail + * set_ddb() mbx cmd with 0x4005 since it still + * counting down its time2wait. + */ + atomic_set(&ddb_entry->relogin_timer, 0); + atomic_set(&ddb_entry->retry_relogin_timer, + ddb_entry->default_time2wait + 4); + +} + +int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index, + struct ddb_entry *ddb_entry, uint32_t state) +{ + uint32_t old_fw_ddb_device_state; + int status = QLA_ERROR; + + old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; + DEBUG2(ql4_printk(KERN_INFO, ha, + "%s: DDB - old state = 0x%x, new state = 0x%x for " + "index [%d]\n", __func__, + ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); + + ddb_entry->fw_ddb_device_state = state; + + switch (old_fw_ddb_device_state) { + case DDB_DS_LOGIN_IN_PROCESS: + case DDB_DS_NO_CONNECTION_ACTIVE: + switch (state) { + case DDB_DS_SESSION_ACTIVE: + ddb_entry->unblock_sess(ddb_entry->sess); + qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry); + status = QLA_SUCCESS; + break; + case DDB_DS_SESSION_FAILED: + iscsi_block_session(ddb_entry->sess); + if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) + qla4xxx_arm_relogin_timer(ddb_entry); + status = QLA_SUCCESS; + break; + } + break; + case DDB_DS_SESSION_ACTIVE: + switch (state) { + case DDB_DS_SESSION_FAILED: + iscsi_block_session(ddb_entry->sess); + if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) + qla4xxx_arm_relogin_timer(ddb_entry); + status = QLA_SUCCESS; + break; + } + break; + case DDB_DS_SESSION_FAILED: + switch (state) { + case DDB_DS_SESSION_ACTIVE: + ddb_entry->unblock_sess(ddb_entry->sess); + qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry); + status = QLA_SUCCESS; + break; + case DDB_DS_SESSION_FAILED: + if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) + qla4xxx_arm_relogin_timer(ddb_entry); + status = QLA_SUCCESS; + break; + } + break; + default: + DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n", + __func__)); + break; + } + return status; +} + +/** + * qla4xxx_process_ddb_changed - process ddb state change + * @ha - Pointer to host adapter structure. + * @fw_ddb_index - Firmware's device database index + * @state - Device state + * + * This routine processes a Decive Database Changed AEN Event. + **/ +int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, + uint32_t fw_ddb_index, + uint32_t state, uint32_t conn_err) +{ + struct ddb_entry *ddb_entry; + int status = QLA_ERROR; + + /* check for out of range index */ + if (fw_ddb_index >= MAX_DDB_ENTRIES) + goto exit_ddb_event; + + /* Get the corresponging ddb entry */ + ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); + /* Device does not currently exist in our database. */ + if (ddb_entry == NULL) { + ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n", + __func__, fw_ddb_index); + + if (state == DDB_DS_NO_CONNECTION_ACTIVE) + clear_bit(fw_ddb_index, ha->ddb_idx_map); + + goto exit_ddb_event; + } + + ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state); exit_ddb_event: return status; } + +/** + * qla4xxx_login_flash_ddb - Login to target (DDB) + * @cls_session: Pointer to the session to login + * + * This routine logins to the target. + * Issues setddb and conn open mbx + **/ +void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session) +{ + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + struct scsi_qla_host *ha; + struct dev_db_entry *fw_ddb_entry = NULL; + dma_addr_t fw_ddb_dma; + uint32_t mbx_sts = 0; + int ret; + + sess = cls_session->dd_data; + ddb_entry = sess->dd_data; + ha = ddb_entry->ha; + + if (!test_bit(AF_LINK_UP, &ha->flags)) + return; + + if (ddb_entry->ddb_type != FLASH_DDB) { + DEBUG2(ql4_printk(KERN_INFO, ha, + "Skipping login to non FLASH DB")); + goto exit_login; + } + + fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, + &fw_ddb_dma); + if (fw_ddb_entry == NULL) { + DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); + goto exit_login; + } + + if (ddb_entry->fw_ddb_index == INVALID_ENTRY) { + ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index); + if (ret == QLA_ERROR) + goto exit_login; + + ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; + ha->tot_ddbs++; + } + + memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry, + sizeof(struct dev_db_entry)); + ddb_entry->sess->target_id = ddb_entry->fw_ddb_index; + + ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, + fw_ddb_dma, &mbx_sts); + if (ret == QLA_ERROR) { + DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n")); + goto exit_login; + } + + ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; + ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); + if (ret == QLA_ERROR) { + ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, + sess->targetname); + goto exit_login; + } + +exit_login: + if (fw_ddb_entry) + dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); +} + diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index 4c2b8487039..c2593782fbb 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -41,6 +41,16 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount, return status; } + if (is_qla40XX(ha)) { + if (test_bit(AF_HA_REMOVAL, &ha->flags)) { + DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: " + "prematurely completing mbx cmd as " + "adapter removal detected\n", + ha->host_no, __func__)); + return status; + } + } + if (is_qla8022(ha)) { if (test_bit(AF_FW_RECOVERY, &ha->flags)) { DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: " @@ -413,6 +423,7 @@ qla4xxx_update_local_ifcb(struct scsi_qla_host *ha, memcpy(ha->name_string, init_fw_cb->iscsi_name, min(sizeof(ha->name_string), sizeof(init_fw_cb->iscsi_name))); + ha->def_timeout = le16_to_cpu(init_fw_cb->def_timeout); /*memcpy(ha->alias, init_fw_cb->Alias, min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/ diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 30f31b127f3..95910c9b477 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include @@ -31,6 +32,13 @@ static struct kmem_cache *srb_cachep; /* * Module parameter information and variables */ +int ql4xdisablesysfsboot = 1; +module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(ql4xdisablesysfsboot, + "Set to disable exporting boot targets to sysfs\n" + " 0 - Export boot targets\n" + " 1 - Do not export boot targets (Default)"); + int ql4xdontresethba = 0; module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ql4xdontresethba, @@ -63,7 +71,7 @@ static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; module_param(ql4xsess_recovery_tmo, int, S_IRUGO); MODULE_PARM_DESC(ql4xsess_recovery_tmo, "Target Session Recovery Timeout.\n" - " Default: 30 sec."); + " Default: 120 sec."); static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); /* @@ -415,7 +423,7 @@ static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) qla_ep = ep->dd_data; ha = to_qla_host(qla_ep->host); - if (adapter_up(ha)) + if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) ret = 1; return ret; @@ -975,6 +983,150 @@ static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, } +int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) +{ + uint32_t mbx_sts = 0; + uint16_t tmp_ddb_index; + int ret; + +get_ddb_index: + tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); + + if (tmp_ddb_index >= MAX_DDB_ENTRIES) { + DEBUG2(ql4_printk(KERN_INFO, ha, + "Free DDB index not available\n")); + ret = QLA_ERROR; + goto exit_get_ddb_index; + } + + if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) + goto get_ddb_index; + + DEBUG2(ql4_printk(KERN_INFO, ha, + "Found a free DDB index at %d\n", tmp_ddb_index)); + ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); + if (ret == QLA_ERROR) { + if (mbx_sts == MBOX_STS_COMMAND_ERROR) { + ql4_printk(KERN_INFO, ha, + "DDB index = %d not available trying next\n", + tmp_ddb_index); + goto get_ddb_index; + } + DEBUG2(ql4_printk(KERN_INFO, ha, + "Free FW DDB not available\n")); + } + + *ddb_index = tmp_ddb_index; + +exit_get_ddb_index: + return ret; +} + +static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry, + char *existing_ipaddr, + char *user_ipaddr) +{ + uint8_t dst_ipaddr[IPv6_ADDR_LEN]; + char formatted_ipaddr[DDB_IPADDR_LEN]; + int status = QLA_SUCCESS, ret = 0; + + if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { + ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, + '\0', NULL); + if (ret == 0) { + status = QLA_ERROR; + goto out_match; + } + ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); + } else { + ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, + '\0', NULL); + if (ret == 0) { + status = QLA_ERROR; + goto out_match; + } + ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); + } + + if (strcmp(existing_ipaddr, formatted_ipaddr)) + status = QLA_ERROR; + +out_match: + return status; +} + +static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, + struct iscsi_cls_conn *cls_conn) +{ + int idx = 0, max_ddbs, rval; + struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); + struct iscsi_session *sess, *existing_sess; + struct iscsi_conn *conn, *existing_conn; + struct ddb_entry *ddb_entry; + + sess = cls_sess->dd_data; + conn = cls_conn->dd_data; + + if (sess->targetname == NULL || + conn->persistent_address == NULL || + conn->persistent_port == 0) + return QLA_ERROR; + + max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : + MAX_DEV_DB_ENTRIES; + + for (idx = 0; idx < max_ddbs; idx++) { + ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); + if (ddb_entry == NULL) + continue; + + if (ddb_entry->ddb_type != FLASH_DDB) + continue; + + existing_sess = ddb_entry->sess->dd_data; + existing_conn = ddb_entry->conn->dd_data; + + if (existing_sess->targetname == NULL || + existing_conn->persistent_address == NULL || + existing_conn->persistent_port == 0) + continue; + + DEBUG2(ql4_printk(KERN_INFO, ha, + "IQN = %s User IQN = %s\n", + existing_sess->targetname, + sess->targetname)); + + DEBUG2(ql4_printk(KERN_INFO, ha, + "IP = %s User IP = %s\n", + existing_conn->persistent_address, + conn->persistent_address)); + + DEBUG2(ql4_printk(KERN_INFO, ha, + "Port = %d User Port = %d\n", + existing_conn->persistent_port, + conn->persistent_port)); + + if (strcmp(existing_sess->targetname, sess->targetname)) + continue; + rval = qla4xxx_match_ipaddress(ha, ddb_entry, + existing_conn->persistent_address, + conn->persistent_address); + if (rval == QLA_ERROR) + continue; + if (existing_conn->persistent_port != conn->persistent_port) + continue; + break; + } + + if (idx == max_ddbs) + return QLA_ERROR; + + DEBUG2(ql4_printk(KERN_INFO, ha, + "Match found in fwdb sessions\n")); + return QLA_SUCCESS; +} + static struct iscsi_cls_session * qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, uint16_t qdepth, @@ -984,8 +1136,7 @@ qla4xxx_session_create(struct iscsi_endpoint *ep, struct scsi_qla_host *ha; struct qla_endpoint *qla_ep; struct ddb_entry *ddb_entry; - uint32_t ddb_index; - uint32_t mbx_sts = 0; + uint16_t ddb_index; struct iscsi_session *sess; struct sockaddr *dst_addr; int ret; @@ -1000,32 +1151,9 @@ qla4xxx_session_create(struct iscsi_endpoint *ep, dst_addr = (struct sockaddr *)&qla_ep->dst_addr; ha = to_qla_host(qla_ep->host); -get_ddb_index: - ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); - - if (ddb_index >= MAX_DDB_ENTRIES) { - DEBUG2(ql4_printk(KERN_INFO, ha, - "Free DDB index not available\n")); + ret = qla4xxx_get_ddb_index(ha, &ddb_index); + if (ret == QLA_ERROR) return NULL; - } - - if (test_and_set_bit(ddb_index, ha->ddb_idx_map)) - goto get_ddb_index; - - DEBUG2(ql4_printk(KERN_INFO, ha, - "Found a free DDB index at %d\n", ddb_index)); - ret = qla4xxx_req_ddb_entry(ha, ddb_index, &mbx_sts); - if (ret == QLA_ERROR) { - if (mbx_sts == MBOX_STS_COMMAND_ERROR) { - ql4_printk(KERN_INFO, ha, - "DDB index = %d not available trying next\n", - ddb_index); - goto get_ddb_index; - } - DEBUG2(ql4_printk(KERN_INFO, ha, - "Free FW DDB not available\n")); - return NULL; - } cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, cmds_max, sizeof(struct ddb_entry), @@ -1040,6 +1168,8 @@ get_ddb_index: ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; ddb_entry->ha = ha; ddb_entry->sess = cls_sess; + ddb_entry->unblock_sess = qla4xxx_unblock_ddb; + ddb_entry->ddb_change = qla4xxx_ddb_change; cls_sess->recovery_tmo = ql4xsess_recovery_tmo; ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; ha->tot_ddbs++; @@ -1109,7 +1239,7 @@ static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) struct iscsi_session *sess; struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; - struct dev_db_entry *fw_ddb_entry; + struct dev_db_entry *fw_ddb_entry = NULL; dma_addr_t fw_ddb_entry_dma; uint32_t mbx_sts = 0; int ret = 0; @@ -1120,12 +1250,25 @@ static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) ddb_entry = sess->dd_data; ha = ddb_entry->ha; + /* Check if we have matching FW DDB, if yes then do not + * login to this target. This could cause target to logout previous + * connection + */ + ret = qla4xxx_match_fwdb_session(ha, cls_conn); + if (ret == QLA_SUCCESS) { + ql4_printk(KERN_INFO, ha, + "Session already exist in FW.\n"); + ret = -EEXIST; + goto exit_conn_start; + } + fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (!fw_ddb_entry) { ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__); - return -ENOMEM; + ret = -ENOMEM; + goto exit_conn_start; } ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); @@ -1138,9 +1281,7 @@ static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) if (mbx_sts) if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { - iscsi_conn_start(ddb_entry->conn); - iscsi_conn_login_event(ddb_entry->conn, - ISCSI_CONN_STATE_LOGGED_IN); + ddb_entry->unblock_sess(ddb_entry->sess); goto exit_set_param; } @@ -1167,8 +1308,9 @@ exit_set_param: ret = 0; exit_conn_start: - dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), - fw_ddb_entry, fw_ddb_entry_dma); + if (fw_ddb_entry) + dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), + fw_ddb_entry, fw_ddb_entry_dma); return ret; } @@ -1344,6 +1486,101 @@ static int qla4xxx_task_xmit(struct iscsi_task *task) return -ENOSYS; } +static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, + struct dev_db_entry *fw_ddb_entry, + struct iscsi_cls_session *cls_sess, + struct iscsi_cls_conn *cls_conn) +{ + int buflen = 0; + struct iscsi_session *sess; + struct iscsi_conn *conn; + char ip_addr[DDB_IPADDR_LEN]; + uint16_t options = 0; + + sess = cls_sess->dd_data; + conn = cls_conn->dd_data; + + conn->max_recv_dlength = BYTE_UNITS * + le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); + + conn->max_xmit_dlength = BYTE_UNITS * + le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); + + sess->initial_r2t_en = + (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); + + sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); + + sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); + + sess->first_burst = BYTE_UNITS * + le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); + + sess->max_burst = BYTE_UNITS * + le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); + + sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); + + sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); + + conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); + + sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); + + options = le16_to_cpu(fw_ddb_entry->options); + if (options & DDB_OPT_IPV6_DEVICE) + sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); + else + sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); + + iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, + (char *)fw_ddb_entry->iscsi_name, buflen); + iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, + (char *)ha->name_string, buflen); + iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, + (char *)ip_addr, buflen); +} + +void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry) +{ + struct iscsi_cls_session *cls_sess; + struct iscsi_cls_conn *cls_conn; + uint32_t ddb_state; + dma_addr_t fw_ddb_entry_dma; + struct dev_db_entry *fw_ddb_entry; + + fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), + &fw_ddb_entry_dma, GFP_KERNEL); + if (!fw_ddb_entry) { + ql4_printk(KERN_ERR, ha, + "%s: Unable to allocate dma buffer\n", __func__); + goto exit_session_conn_fwddb_param; + } + + if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, + fw_ddb_entry_dma, NULL, NULL, &ddb_state, + NULL, NULL, NULL) == QLA_ERROR) { + DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " + "get_ddb_entry for fw_ddb_index %d\n", + ha->host_no, __func__, + ddb_entry->fw_ddb_index)); + goto exit_session_conn_fwddb_param; + } + + cls_sess = ddb_entry->sess; + + cls_conn = ddb_entry->conn; + + /* Update params */ + qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); + +exit_session_conn_fwddb_param: + if (fw_ddb_entry) + dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), + fw_ddb_entry, fw_ddb_entry_dma); +} + void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry) { @@ -1360,7 +1597,7 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, if (!fw_ddb_entry) { ql4_printk(KERN_ERR, ha, "%s: Unable to allocate dma buffer\n", __func__); - return; + goto exit_session_conn_param; } if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, @@ -1370,7 +1607,7 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, "get_ddb_entry for fw_ddb_index %d\n", ha->host_no, __func__, ddb_entry->fw_ddb_index)); - return; + goto exit_session_conn_param; } cls_sess = ddb_entry->sess; @@ -1379,6 +1616,12 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, cls_conn = ddb_entry->conn; conn = cls_conn->dd_data; + /* Update timers after login */ + ddb_entry->default_relogin_timeout = + le16_to_cpu(fw_ddb_entry->def_timeout); + ddb_entry->default_time2wait = + le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); + /* Update params */ conn->max_recv_dlength = BYTE_UNITS * le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); @@ -1407,6 +1650,11 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, memcpy(sess->initiatorname, ha->name_string, min(sizeof(ha->name_string), sizeof(sess->initiatorname))); + +exit_session_conn_param: + if (fw_ddb_entry) + dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), + fw_ddb_entry, fw_ddb_entry_dma); } /* @@ -1607,6 +1855,9 @@ static void qla4xxx_mem_free(struct scsi_qla_host *ha) vfree(ha->chap_list); ha->chap_list = NULL; + if (ha->fw_ddb_dma_pool) + dma_pool_destroy(ha->fw_ddb_dma_pool); + /* release io space registers */ if (is_qla8022(ha)) { if (ha->nx_pcibase) @@ -1689,6 +1940,16 @@ static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) goto mem_alloc_error_exit; } + ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, + DDB_DMA_BLOCK_SIZE, 8, 0); + + if (ha->fw_ddb_dma_pool == NULL) { + ql4_printk(KERN_WARNING, ha, + "%s: fw_ddb_dma_pool allocation failed..\n", + __func__); + goto mem_alloc_error_exit; + } + return QLA_SUCCESS; mem_alloc_error_exit: @@ -1800,6 +2061,60 @@ void qla4_8xxx_watchdog(struct scsi_qla_host *ha) } } +void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) +{ + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + struct scsi_qla_host *ha; + + sess = cls_sess->dd_data; + ddb_entry = sess->dd_data; + ha = ddb_entry->ha; + + if (!(ddb_entry->ddb_type == FLASH_DDB)) + return; + + if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && + !iscsi_is_session_online(cls_sess)) { + if (atomic_read(&ddb_entry->retry_relogin_timer) != + INVALID_ENTRY) { + if (atomic_read(&ddb_entry->retry_relogin_timer) == + 0) { + atomic_set(&ddb_entry->retry_relogin_timer, + INVALID_ENTRY); + set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); + set_bit(DF_RELOGIN, &ddb_entry->flags); + DEBUG2(ql4_printk(KERN_INFO, ha, + "%s: index [%d] login device\n", + __func__, ddb_entry->fw_ddb_index)); + } else + atomic_dec(&ddb_entry->retry_relogin_timer); + } + } + + /* Wait for relogin to timeout */ + if (atomic_read(&ddb_entry->relogin_timer) && + (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { + /* + * If the relogin times out and the device is + * still NOT ONLINE then try and relogin again. + */ + if (!iscsi_is_session_online(cls_sess)) { + /* Reset retry relogin timer */ + atomic_inc(&ddb_entry->relogin_retry_count); + DEBUG2(ql4_printk(KERN_INFO, ha, + "%s: index[%d] relogin timed out-retrying" + " relogin (%d), retry (%d)\n", __func__, + ddb_entry->fw_ddb_index, + atomic_read(&ddb_entry->relogin_retry_count), + ddb_entry->default_time2wait + 4)); + set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); + atomic_set(&ddb_entry->retry_relogin_timer, + ddb_entry->default_time2wait + 4); + } + } +} + /** * qla4xxx_timer - checks every second for work to do. * @ha: Pointer to host adapter structure. @@ -1809,6 +2124,8 @@ static void qla4xxx_timer(struct scsi_qla_host *ha) int start_dpc = 0; uint16_t w; + iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); + /* If we are in the middle of AER/EEH processing * skip any processing and reschedule the timer */ @@ -2078,7 +2395,12 @@ static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) sess = cls_session->dd_data; ddb_entry = sess->dd_data; ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; - iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED); + + if (ddb_entry->ddb_type == FLASH_DDB) + iscsi_block_session(ddb_entry->sess); + else + iscsi_session_failure(cls_session->dd_data, + ISCSI_ERR_CONN_FAILED); } /** @@ -2163,7 +2485,7 @@ recover_ha_init_adapter: /* NOTE: AF_ONLINE flag set upon successful completion of * qla4xxx_initialize_adapter */ - status = qla4xxx_initialize_adapter(ha); + status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); } /* Retry failed adapter initialization, if necessary @@ -2245,17 +2567,108 @@ static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) iscsi_unblock_session(ddb_entry->sess); } else { /* Trigger relogin */ - iscsi_session_failure(cls_session->dd_data, - ISCSI_ERR_CONN_FAILED); + if (ddb_entry->ddb_type == FLASH_DDB) { + if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) + qla4xxx_arm_relogin_timer(ddb_entry); + } else + iscsi_session_failure(cls_session->dd_data, + ISCSI_ERR_CONN_FAILED); } } } +int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) +{ + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + struct scsi_qla_host *ha; + + sess = cls_session->dd_data; + ddb_entry = sess->dd_data; + ha = ddb_entry->ha; + ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" + " unblock session\n", ha->host_no, __func__, + ddb_entry->fw_ddb_index); + + iscsi_unblock_session(ddb_entry->sess); + + /* Start scan target */ + if (test_bit(AF_ONLINE, &ha->flags)) { + ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" + " start scan\n", ha->host_no, __func__, + ddb_entry->fw_ddb_index); + scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); + } + return QLA_SUCCESS; +} + +int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) +{ + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + struct scsi_qla_host *ha; + + sess = cls_session->dd_data; + ddb_entry = sess->dd_data; + ha = ddb_entry->ha; + ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" + " unblock user space session\n", ha->host_no, __func__, + ddb_entry->fw_ddb_index); + iscsi_conn_start(ddb_entry->conn); + iscsi_conn_login_event(ddb_entry->conn, + ISCSI_CONN_STATE_LOGGED_IN); + + return QLA_SUCCESS; +} + static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) { iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); } +static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) +{ + uint16_t relogin_timer; + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + struct scsi_qla_host *ha; + + sess = cls_sess->dd_data; + ddb_entry = sess->dd_data; + ha = ddb_entry->ha; + + relogin_timer = max(ddb_entry->default_relogin_timeout, + (uint16_t)RELOGIN_TOV); + atomic_set(&ddb_entry->relogin_timer, relogin_timer); + + DEBUG2(ql4_printk(KERN_INFO, ha, + "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, + ddb_entry->fw_ddb_index, relogin_timer)); + + qla4xxx_login_flash_ddb(cls_sess); +} + +static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) +{ + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + struct scsi_qla_host *ha; + + sess = cls_sess->dd_data; + ddb_entry = sess->dd_data; + ha = ddb_entry->ha; + + if (!(ddb_entry->ddb_type == FLASH_DDB)) + return; + + if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && + !iscsi_is_session_online(cls_sess)) { + DEBUG2(ql4_printk(KERN_INFO, ha, + "relogin issued\n")); + qla4xxx_relogin_flash_ddb(cls_sess); + } +} + void qla4xxx_wake_dpc(struct scsi_qla_host *ha) { if (ha->dpc_thread) @@ -2356,6 +2769,12 @@ dpc_post_reset_ha: if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) qla4xxx_get_dhcp_ip_address(ha); + /* ---- relogin device? --- */ + if (adapter_up(ha) && + test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { + iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); + } + /* ---- link change? --- */ if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { if (!test_bit(AF_LINK_UP, &ha->flags)) { @@ -2368,8 +2787,12 @@ dpc_post_reset_ha: * fatal error recovery. Therefore, the driver must * manually relogin to devices when recovering from * connection failures, logouts, expired KATO, etc. */ - - qla4xxx_relogin_all_devices(ha); + if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { + qla4xxx_build_ddb_list(ha, ha->is_reset); + iscsi_host_for_each_session(ha->host, + qla4xxx_login_flash_ddb); + } else + qla4xxx_relogin_all_devices(ha); } } } @@ -2867,6 +3290,9 @@ static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) " target ID %d\n", __func__, ddb_index[0], ddb_index[1])); + ha->pri_ddb_idx = ddb_index[0]; + ha->sec_ddb_idx = ddb_index[1]; + exit_boot_info_free: dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); exit_boot_info: @@ -3034,6 +3460,9 @@ static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) return ret; } + if (ql4xdisablesysfsboot) + return QLA_SUCCESS; + if (ddb_index[0] == 0xffff) goto sec_target; @@ -3066,7 +3495,15 @@ static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) struct iscsi_boot_kobj *boot_kobj; if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) - return 0; + return QLA_ERROR; + + if (ql4xdisablesysfsboot) { + ql4_printk(KERN_INFO, ha, + "%s: syfsboot disabled - driver will trigger login" + "and publish session for discovery .\n", __func__); + return QLA_SUCCESS; + } + ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); if (!ha->boot_kset) @@ -3108,7 +3545,7 @@ static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) if (!boot_kobj) goto put_host; - return 0; + return QLA_SUCCESS; put_host: scsi_host_put(ha->host); @@ -3174,9 +3611,507 @@ static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) exit_chap_list: dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma); - return; } +static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, + struct ql4_tuple_ddb *tddb) +{ + struct scsi_qla_host *ha; + struct iscsi_cls_session *cls_sess; + struct iscsi_cls_conn *cls_conn; + struct iscsi_session *sess; + struct iscsi_conn *conn; + + DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); + ha = ddb_entry->ha; + cls_sess = ddb_entry->sess; + sess = cls_sess->dd_data; + cls_conn = ddb_entry->conn; + conn = cls_conn->dd_data; + + tddb->tpgt = sess->tpgt; + tddb->port = conn->persistent_port; + strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); + strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); +} + +static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, + struct ql4_tuple_ddb *tddb) +{ + uint16_t options = 0; + + tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); + memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], + min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); + + options = le16_to_cpu(fw_ddb_entry->options); + if (options & DDB_OPT_IPV6_DEVICE) + sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); + else + sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); + + tddb->port = le16_to_cpu(fw_ddb_entry->port); +} + +static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, + struct ql4_tuple_ddb *old_tddb, + struct ql4_tuple_ddb *new_tddb) +{ + if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) + return QLA_ERROR; + + if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) + return QLA_ERROR; + + if (old_tddb->port != new_tddb->port) + return QLA_ERROR; + + DEBUG2(ql4_printk(KERN_INFO, ha, + "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", + old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, + old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, + new_tddb->ip_addr, new_tddb->iscsi_name)); + + return QLA_SUCCESS; +} + +static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, + struct dev_db_entry *fw_ddb_entry) +{ + struct ddb_entry *ddb_entry; + struct ql4_tuple_ddb *fw_tddb = NULL; + struct ql4_tuple_ddb *tmp_tddb = NULL; + int idx; + int ret = QLA_ERROR; + + fw_tddb = vzalloc(sizeof(*fw_tddb)); + if (!fw_tddb) { + DEBUG2(ql4_printk(KERN_WARNING, ha, + "Memory Allocation failed.\n")); + ret = QLA_SUCCESS; + goto exit_check; + } + + tmp_tddb = vzalloc(sizeof(*tmp_tddb)); + if (!tmp_tddb) { + DEBUG2(ql4_printk(KERN_WARNING, ha, + "Memory Allocation failed.\n")); + ret = QLA_SUCCESS; + goto exit_check; + } + + qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb); + + for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { + ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); + if (ddb_entry == NULL) + continue; + + qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); + if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) { + ret = QLA_SUCCESS; /* found */ + goto exit_check; + } + } + +exit_check: + if (fw_tddb) + vfree(fw_tddb); + if (tmp_tddb) + vfree(tmp_tddb); + return ret; +} + +static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, + struct list_head *list_nt, + struct dev_db_entry *fw_ddb_entry) +{ + struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; + struct ql4_tuple_ddb *fw_tddb = NULL; + struct ql4_tuple_ddb *tmp_tddb = NULL; + int ret = QLA_ERROR; + + fw_tddb = vzalloc(sizeof(*fw_tddb)); + if (!fw_tddb) { + DEBUG2(ql4_printk(KERN_WARNING, ha, + "Memory Allocation failed.\n")); + ret = QLA_SUCCESS; + goto exit_check; + } + + tmp_tddb = vzalloc(sizeof(*tmp_tddb)); + if (!tmp_tddb) { + DEBUG2(ql4_printk(KERN_WARNING, ha, + "Memory Allocation failed.\n")); + ret = QLA_SUCCESS; + goto exit_check; + } + + qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb); + + list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { + qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb); + if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) { + ret = QLA_SUCCESS; /* found */ + goto exit_check; + } + } + +exit_check: + if (fw_tddb) + vfree(fw_tddb); + if (tmp_tddb) + vfree(tmp_tddb); + return ret; +} + +static void qla4xxx_free_nt_list(struct list_head *list_nt) +{ + struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; + + /* Free up the normaltargets list */ + list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { + list_del_init(&nt_ddb_idx->list); + vfree(nt_ddb_idx); + } + +} + +static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, + struct dev_db_entry *fw_ddb_entry) +{ + struct iscsi_endpoint *ep; + struct sockaddr_in *addr; + struct sockaddr_in6 *addr6; + struct sockaddr *dst_addr; + char *ip; + + /* TODO: need to destroy on unload iscsi_endpoint*/ + dst_addr = vmalloc(sizeof(*dst_addr)); + if (!dst_addr) + return NULL; + + if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { + dst_addr->sa_family = AF_INET6; + addr6 = (struct sockaddr_in6 *)dst_addr; + ip = (char *)&addr6->sin6_addr; + memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); + addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); + + } else { + dst_addr->sa_family = AF_INET; + addr = (struct sockaddr_in *)dst_addr; + ip = (char *)&addr->sin_addr; + memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); + addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); + } + + ep = qla4xxx_ep_connect(ha->host, dst_addr, 0); + vfree(dst_addr); + return ep; +} + +static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) +{ + if (ql4xdisablesysfsboot) + return QLA_SUCCESS; + if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) + return QLA_ERROR; + return QLA_SUCCESS; +} + +static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry) +{ + ddb_entry->ddb_type = FLASH_DDB; + ddb_entry->fw_ddb_index = INVALID_ENTRY; + ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; + ddb_entry->ha = ha; + ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; + ddb_entry->ddb_change = qla4xxx_flash_ddb_change; + + atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); + atomic_set(&ddb_entry->relogin_timer, 0); + atomic_set(&ddb_entry->relogin_retry_count, 0); + + ddb_entry->default_relogin_timeout = + le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); + ddb_entry->default_time2wait = + le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); +} + +static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) +{ + uint32_t idx = 0; + uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ + uint32_t sts[MBOX_REG_COUNT]; + uint32_t ip_state; + unsigned long wtime; + int ret; + + wtime = jiffies + (HZ * IP_CONFIG_TOV); + do { + for (idx = 0; idx < IP_ADDR_COUNT; idx++) { + if (ip_idx[idx] == -1) + continue; + + ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); + + if (ret == QLA_ERROR) { + ip_idx[idx] = -1; + continue; + } + + ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; + + DEBUG2(ql4_printk(KERN_INFO, ha, + "Waiting for IP state for idx = %d, state = 0x%x\n", + ip_idx[idx], ip_state)); + if (ip_state == IP_ADDRSTATE_UNCONFIGURED || + ip_state == IP_ADDRSTATE_INVALID || + ip_state == IP_ADDRSTATE_PREFERRED || + ip_state == IP_ADDRSTATE_DEPRICATED || + ip_state == IP_ADDRSTATE_DISABLING) + ip_idx[idx] = -1; + + } + + /* Break if all IP states checked */ + if ((ip_idx[0] == -1) && + (ip_idx[1] == -1) && + (ip_idx[2] == -1) && + (ip_idx[3] == -1)) + break; + schedule_timeout_uninterruptible(HZ); + } while (time_after(wtime, jiffies)); +} + +void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) +{ + int max_ddbs; + int ret; + uint32_t idx = 0, next_idx = 0; + uint32_t state = 0, conn_err = 0; + uint16_t conn_id; + struct dev_db_entry *fw_ddb_entry; + struct ddb_entry *ddb_entry = NULL; + dma_addr_t fw_ddb_dma; + struct iscsi_cls_session *cls_sess; + struct iscsi_session *sess; + struct iscsi_cls_conn *cls_conn; + struct iscsi_endpoint *ep; + uint16_t cmds_max = 32, tmo = 0; + uint32_t initial_cmdsn = 0; + struct list_head list_st, list_nt; /* List of sendtargets */ + struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; + int fw_idx_size; + unsigned long wtime; + struct qla_ddb_index *nt_ddb_idx; + + if (!test_bit(AF_LINK_UP, &ha->flags)) { + set_bit(AF_BUILD_DDB_LIST, &ha->flags); + ha->is_reset = is_reset; + return; + } + max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : + MAX_DEV_DB_ENTRIES; + + fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, + &fw_ddb_dma); + if (fw_ddb_entry == NULL) { + DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); + goto exit_ddb_list; + } + + INIT_LIST_HEAD(&list_st); + INIT_LIST_HEAD(&list_nt); + fw_idx_size = sizeof(struct qla_ddb_index); + + for (idx = 0; idx < max_ddbs; idx = next_idx) { + ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, + fw_ddb_dma, NULL, + &next_idx, &state, &conn_err, + NULL, &conn_id); + if (ret == QLA_ERROR) + break; + + if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) + goto continue_next_st; + + /* Check if ST, add to the list_st */ + if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) + goto continue_next_st; + + st_ddb_idx = vzalloc(fw_idx_size); + if (!st_ddb_idx) + break; + + st_ddb_idx->fw_ddb_idx = idx; + + list_add_tail(&st_ddb_idx->list, &list_st); +continue_next_st: + if (next_idx == 0) + break; + } + + /* Before issuing conn open mbox, ensure all IPs states are configured + * Note, conn open fails if IPs are not configured + */ + qla4xxx_wait_for_ip_configuration(ha); + + /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ + list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { + qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); + } + + /* Wait to ensure all sendtargets are done for min 12 sec wait */ + tmo = ((ha->def_timeout < LOGIN_TOV) ? LOGIN_TOV : ha->def_timeout); + DEBUG2(ql4_printk(KERN_INFO, ha, + "Default time to wait for build ddb %d\n", tmo)); + + wtime = jiffies + (HZ * tmo); + do { + list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, + list) { + ret = qla4xxx_get_fwddb_entry(ha, + st_ddb_idx->fw_ddb_idx, + NULL, 0, NULL, &next_idx, + &state, &conn_err, NULL, + NULL); + if (ret == QLA_ERROR) + continue; + + if (state == DDB_DS_NO_CONNECTION_ACTIVE || + state == DDB_DS_SESSION_FAILED) { + list_del_init(&st_ddb_idx->list); + vfree(st_ddb_idx); + } + } + schedule_timeout_uninterruptible(HZ / 10); + } while (time_after(wtime, jiffies)); + + /* Free up the sendtargets list */ + list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { + list_del_init(&st_ddb_idx->list); + vfree(st_ddb_idx); + } + + for (idx = 0; idx < max_ddbs; idx = next_idx) { + ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, + fw_ddb_dma, NULL, + &next_idx, &state, &conn_err, + NULL, &conn_id); + if (ret == QLA_ERROR) + break; + + if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) + goto continue_next_nt; + + /* Check if NT, then add to list it */ + if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) + goto continue_next_nt; + + if (state == DDB_DS_NO_CONNECTION_ACTIVE || + state == DDB_DS_SESSION_FAILED) { + DEBUG2(ql4_printk(KERN_INFO, ha, + "Adding DDB to session = 0x%x\n", + idx)); + if (is_reset == INIT_ADAPTER) { + nt_ddb_idx = vmalloc(fw_idx_size); + if (!nt_ddb_idx) + break; + + nt_ddb_idx->fw_ddb_idx = idx; + + memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, + sizeof(struct dev_db_entry)); + + if (qla4xxx_is_flash_ddb_exists(ha, &list_nt, + fw_ddb_entry) == QLA_SUCCESS) { + vfree(nt_ddb_idx); + goto continue_next_nt; + } + list_add_tail(&nt_ddb_idx->list, &list_nt); + } else if (is_reset == RESET_ADAPTER) { + if (qla4xxx_is_session_exists(ha, + fw_ddb_entry) == QLA_SUCCESS) + goto continue_next_nt; + } + + /* Create session object, with INVALID_ENTRY, + * the targer_id would get set when we issue the login + */ + cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, + ha->host, cmds_max, + sizeof(struct ddb_entry), + sizeof(struct ql4_task_data), + initial_cmdsn, INVALID_ENTRY); + if (!cls_sess) + goto exit_ddb_list; + + /* + * iscsi_session_setup increments the driver reference + * count which wouldn't let the driver to be unloaded. + * so calling module_put function to decrement the + * reference count. + **/ + module_put(qla4xxx_iscsi_transport.owner); + sess = cls_sess->dd_data; + ddb_entry = sess->dd_data; + ddb_entry->sess = cls_sess; + + cls_sess->recovery_tmo = ql4xsess_recovery_tmo; + memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, + sizeof(struct dev_db_entry)); + + qla4xxx_setup_flash_ddb_entry(ha, ddb_entry); + + cls_conn = iscsi_conn_setup(cls_sess, + sizeof(struct qla_conn), + conn_id); + if (!cls_conn) + goto exit_ddb_list; + + ddb_entry->conn = cls_conn; + + /* Setup ep, for displaying attributes in sysfs */ + ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); + if (ep) { + ep->conn = cls_conn; + cls_conn->ep = ep; + } else { + DEBUG2(ql4_printk(KERN_ERR, ha, + "Unable to get ep\n")); + } + + /* Update sess/conn params */ + qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, + cls_conn); + + if (is_reset == RESET_ADAPTER) { + iscsi_block_session(cls_sess); + /* Use the relogin path to discover new devices + * by short-circuting the logic of setting + * timer to relogin - instead set the flags + * to initiate login right away. + */ + set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); + set_bit(DF_RELOGIN, &ddb_entry->flags); + } + } +continue_next_nt: + if (next_idx == 0) + break; + } +exit_ddb_list: + qla4xxx_free_nt_list(&list_nt); + if (fw_ddb_entry) + dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); + + qla4xxx_free_ddb_index(ha); +} + + /** * qla4xxx_probe_adapter - callback function to probe HBA * @pdev: pointer to pci_dev structure @@ -3298,7 +4233,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, * firmware * NOTE: interrupts enabled upon successful completion */ - status = qla4xxx_initialize_adapter(ha); + status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); while ((!test_bit(AF_ONLINE, &ha->flags)) && init_retry_count++ < MAX_INIT_RETRIES) { @@ -3319,7 +4254,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) continue; - status = qla4xxx_initialize_adapter(ha); + status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); } if (!test_bit(AF_ONLINE, &ha->flags)) { @@ -3386,12 +4321,16 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, ha->host_no, ha->firmware_version[0], ha->firmware_version[1], ha->patch_number, ha->build_number); - qla4xxx_create_chap_list(ha); - if (qla4xxx_setup_boot_info(ha)) ql4_printk(KERN_ERR, ha, "%s:ISCSI boot info setup failed\n", __func__); + /* Perform the build ddb list and login to each */ + qla4xxx_build_ddb_list(ha, INIT_ADAPTER); + iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); + + qla4xxx_create_chap_list(ha); + qla4xxx_create_ifaces(ha); return 0; @@ -3449,6 +4388,38 @@ static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) } } +static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) +{ + struct ddb_entry *ddb_entry; + int options; + int idx; + + for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { + + ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); + if ((ddb_entry != NULL) && + (ddb_entry->ddb_type == FLASH_DDB)) { + + options = LOGOUT_OPTION_CLOSE_SESSION; + if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) + == QLA_ERROR) + ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", + __func__); + + qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); + /* + * we have decremented the reference count of the driver + * when we setup the session to have the driver unload + * to be seamless without actually destroying the + * session + **/ + try_module_get(qla4xxx_iscsi_transport.owner); + iscsi_destroy_endpoint(ddb_entry->conn->ep); + qla4xxx_free_ddb(ha, ddb_entry); + iscsi_session_teardown(ddb_entry->sess); + } + } +} /** * qla4xxx_remove_adapter - calback function to remove adapter. * @pci_dev: PCI device pointer @@ -3465,9 +4436,11 @@ static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) /* destroy iface from sysfs */ qla4xxx_destroy_ifaces(ha); - if (ha->boot_kset) + if ((!ql4xdisablesysfsboot) && ha->boot_kset) iscsi_boot_destroy_kset(ha->boot_kset); + qla4xxx_destroy_fw_ddb_session(ha); + scsi_remove_host(ha->host); qla4xxx_free_adapter(ha); @@ -4115,7 +5088,7 @@ static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) qla4_8xxx_idc_unlock(ha); clear_bit(AF_FW_RECOVERY, &ha->flags); - rval = qla4xxx_initialize_adapter(ha); + rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); qla4_8xxx_idc_lock(ha); if (rval != QLA_SUCCESS) { @@ -4151,7 +5124,7 @@ static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) == QLA82XX_DEV_READY)) { clear_bit(AF_FW_RECOVERY, &ha->flags); - rval = qla4xxx_initialize_adapter(ha); + rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); if (rval == QLA_SUCCESS) { ret = qla4xxx_request_irqs(ha); if (ret) { diff --git a/drivers/scsi/qla4xxx/ql4_version.h b/drivers/scsi/qla4xxx/ql4_version.h index c15347d3f53..5254e57968f 100644 --- a/drivers/scsi/qla4xxx/ql4_version.h +++ b/drivers/scsi/qla4xxx/ql4_version.h @@ -5,4 +5,4 @@ * See LICENSE.qla4xxx for copyright and licensing details. */ -#define QLA4XXX_DRIVER_VERSION "5.02.00-k8" +#define QLA4XXX_DRIVER_VERSION "5.02.00-k9" -- cgit v1.2.3 From e1cd89c507b41e4021ce6fb0d19d230f6a932ccd Mon Sep 17 00:00:00 2001 From: Tomas Henzl Date: Thu, 1 Dec 2011 21:38:42 -0600 Subject: [SCSI] qla4xxx: a small loop fix When the qla4xxx_get_fwddb_entry returns QLA_ERROR the nex_idx is not updated, for (idx = 0; idx < max_ddbs; idx = next_idx) { ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, &next_idx, &state, &conn_err, NULL, NULL); if (ret == QLA_ERROR) continue; This means there is a risk that the 'idx < max_ddbs' condition will never met and the loop will loop forever. Fix this by explicitly increasing the next_idx in the error condition. Maybe a break instead of continue is more appropriate, leaving the decision on the qlogic maintainer. Signed-off-by: Tomas Henzl Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/qla4xxx/ql4_init.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 0497873a1dd..1bdfa8120ac 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -787,8 +787,10 @@ void qla4xxx_free_ddb_index(struct scsi_qla_host *ha) ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, &next_idx, &state, &conn_err, NULL, NULL); - if (ret == QLA_ERROR) + if (ret == QLA_ERROR) { + next_idx++; continue; + } if (state == DDB_DS_NO_CONNECTION_ACTIVE || state == DDB_DS_SESSION_FAILED) { DEBUG2(ql4_printk(KERN_INFO, ha, -- cgit v1.2.3 From ff1d0319ac6a5fd859884b30c0a3cb6733b8fb2d Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Thu, 1 Dec 2011 21:38:43 -0600 Subject: [SCSI] qla4xxx: check for failed conn setup iscsi_conn_setup can fail so we must check for NULL being returned. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/qla4xxx/ql4_os.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 95910c9b477..4169c8baa11 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -1207,6 +1207,9 @@ qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_idx); + if (!cls_conn) + return NULL; + sess = cls_sess->dd_data; ddb_entry = sess->dd_data; ddb_entry->conn = cls_conn; -- cgit v1.2.3 From cd5cfce856684e13b9b57d46b78bb827e9c4da3c Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 12 Dec 2011 09:23:48 -0500 Subject: drm/radeon/kms: add some new pci ids Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=43739 Signed-off-by: Alex Deucher Cc: stable@kernel.org Signed-off-by: Dave Airlie --- include/drm/drm_pciids.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h index 4e4fbb820e2..14b6cd02228 100644 --- a/include/drm/drm_pciids.h +++ b/include/drm/drm_pciids.h @@ -182,8 +182,11 @@ {0x1002, 0x6748, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6749, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6750, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x6751, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6758, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6759, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x675B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x675D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \ {0x1002, 0x675F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6760, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6761, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ @@ -195,8 +198,10 @@ {0x1002, 0x6767, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6768, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6770, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x6772, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6778, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6779, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x677B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6840, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6841, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6842, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ @@ -246,6 +251,7 @@ {0x1002, 0x68f2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CEDAR|RADEON_NEW_MEMMAP}, \ {0x1002, 0x68f8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CEDAR|RADEON_NEW_MEMMAP}, \ {0x1002, 0x68f9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CEDAR|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x68fa, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CEDAR|RADEON_NEW_MEMMAP}, \ {0x1002, 0x68fe, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CEDAR|RADEON_NEW_MEMMAP}, \ {0x1002, 0x7100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R520|RADEON_NEW_MEMMAP}, \ {0x1002, 0x7101, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R520|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ @@ -488,6 +494,8 @@ {0x1002, 0x9647, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP},\ {0x1002, 0x9648, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP},\ {0x1002, 0x964a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ + {0x1002, 0x964b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ + {0x1002, 0x964c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0x1002, 0x964e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP},\ {0x1002, 0x964f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP},\ {0x1002, 0x9710, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS880|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ @@ -502,6 +510,8 @@ {0x1002, 0x9805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0x1002, 0x9806, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0x1002, 0x9807, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ + {0x1002, 0x9808, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ + {0x1002, 0x9809, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0, 0, 0} #define r128_PCI_IDS \ -- cgit v1.2.3 From a878185c3b93e692ace0d1628a47f3d75504ab4f Mon Sep 17 00:00:00 2001 From: Eddie Wai Date: Tue, 6 Dec 2011 22:41:21 -0800 Subject: [SCSI] bnx2i: Fixed kernel panic caused by unprotected task->sc->request deref During session recovery, the conn_stop call will trigger a flush to all outstanding SCSI cmds in the xmit queue. This will set all outstanding task->sc to NULL prior to the session_teardown call which frees the task memory. In the bnx2i SCSI response processing path, only the task was being checked for NULL under the session lock before the task->sc->request dereferencing. If there are outstanding SCSI cmd responses pending for process, the following kernel panic can be exposed where task->sc was found to be NULL. Call Trace: [ 69.720205] [] bnx2i_process_new_cqes+0x290/0x3c0 [bnx2i] [ 69.804289] [] bnx2i_fastpath_notification+0x33/0xa0 [bnx2 i] [ 69.891490] [] bnx2i_indicate_kcqe+0xdb/0x330 [bnx2i] [ 69.971427] [] service_kcqes+0x16e/0x1d0 [cnic] [ 70.045132] [] cnic_service_bnx2x_kcq+0x2a/0x50 [cnic] [ 70.126105] [] cnic_service_bnx2x_bh+0x43/0x140 [cnic] [ 70.207081] [] tasklet_action+0x66/0x110 [ 70.273521] [] __do_softirq+0xef/0x220 [ 70.337887] [] call_softirq+0x1c/0x30 This patch adds the !task->sc check and also protects the sc dereferencing under the session lock. Signed-off-by: Eddie Wai Signed-off-by: James Bottomley --- drivers/scsi/bnx2i/bnx2i_hwi.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c index dba72a4e6a1..1ad0b822556 100644 --- a/drivers/scsi/bnx2i/bnx2i_hwi.c +++ b/drivers/scsi/bnx2i/bnx2i_hwi.c @@ -1906,18 +1906,19 @@ static int bnx2i_queue_scsi_cmd_resp(struct iscsi_session *session, spin_lock(&session->lock); task = iscsi_itt_to_task(bnx2i_conn->cls_conn->dd_data, cqe->itt & ISCSI_CMD_RESPONSE_INDEX); - if (!task) { + if (!task || !task->sc) { spin_unlock(&session->lock); return -EINVAL; } sc = task->sc; - spin_unlock(&session->lock); if (!blk_rq_cpu_valid(sc->request)) cpu = smp_processor_id(); else cpu = sc->request->cpu; + spin_unlock(&session->lock); + p = &per_cpu(bnx2i_percpu, cpu); spin_lock(&p->p_work_lock); if (unlikely(!p->iothread)) { -- cgit v1.2.3 From b51306c63449d7f06ffa689036ba49eb46e898b5 Mon Sep 17 00:00:00 2001 From: Ajaykumar Hotchandani Date: Mon, 12 Dec 2011 13:57:36 +0530 Subject: PCI: Set device power state to PCI_D0 for device without native PM support During test of one IB card with guest VM, found that, msi is not initialized properly. It turns out __write_msi_msg will do nothing if device current_state is not PCI_D0. And, that pci device does not have pm_cap in guest VM. There is an error in setting of power state to PCI_D0 in pci_enable_device(), but error is not returned for this. Following is code flow: pci_enable_device() --> __pci_enable_device_flags() --> do_pci_enable_device() --> pci_set_power_state() --> __pci_start_power_transition() We have following condition inside __pci_start_power_transition(): if (platform_pci_power_manageable(dev)) { error = platform_pci_set_power_state(dev, state); if (!error) pci_update_current_state(dev, state); } else { error = -ENODEV; /* Fall back to PCI_D0 if native PM is not supported */ if (!dev->pm_cap) dev->current_state = PCI_D0; } Here, from platform_pci_set_power_state(), acpi_pci_set_power_state() is getting called and that is failing with ENODEV because of following condition: if (!handle || ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0",&tmp))) return -ENODEV; Because of that, pci_update_current_state() is not getting called. With this patch, if device power state can not be set via platform_pci_set_power_state and that device does not have native pm support, then PCI device power state will be set to PCI_D0. -v2: This also reverts 47e9037ac16637cd7f12b8790ea7ce6680e42168, as it's not needed after this change. Acked-by: "Rafael J. Wysocki" Signed-off-by: Ajaykumar Hotchandani Signed-off-by: Yinghai Lu Signed-off-by: Jesse Barnes --- drivers/pci/hotplug/acpiphp_glue.c | 1 - drivers/pci/pci.c | 3 +++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 68360d5b494..9ddf69e3bbe 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -225,7 +225,6 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv) pdev = pci_get_slot(pbus, PCI_DEVFN(device, function)); if (pdev) { - pdev->current_state = PCI_D0; slot->flags |= (SLOT_ENABLED | SLOT_POWEREDON); pci_dev_put(pdev); } diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 4788413f43d..faccb893770 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -664,6 +664,9 @@ static int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state) error = platform_pci_set_power_state(dev, state); if (!error) pci_update_current_state(dev, state); + /* Fall back to PCI_D0 if native PM is not supported */ + if (!dev->pm_cap) + dev->current_state = PCI_D0; } else { error = -ENODEV; /* Fall back to PCI_D0 if native PM is not supported */ -- cgit v1.2.3 From 51e708c1049e721b9c5c48d026bc97ca8497d39a Mon Sep 17 00:00:00 2001 From: Yogesh Ashok Powar Date: Tue, 13 Dec 2011 20:43:16 -0800 Subject: mwifiex: avoid double list_del in command cancel path Command cancel path cancels the current command and moves it to free command queue. While doing that it deletes the command entry from the pending list. This is not correct as the entry has been already deleted from the pending list at 'mwifiex_exec_next_cmd'. Fixing it. Also making sure the stale command pointer is cleaned and unaccessible for later use. Signed-off-by: Yogesh Ashok Powar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/cmdevt.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c index ac278156d39..6e0a3eaecf7 100644 --- a/drivers/net/wireless/mwifiex/cmdevt.c +++ b/drivers/net/wireless/mwifiex/cmdevt.c @@ -939,7 +939,6 @@ mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter) { struct cmd_ctrl_node *cmd_node = NULL, *tmp_node = NULL; unsigned long cmd_flags; - unsigned long cmd_pending_q_flags; unsigned long scan_pending_q_flags; uint16_t cancel_scan_cmd = false; @@ -949,12 +948,9 @@ mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter) cmd_node = adapter->curr_cmd; cmd_node->wait_q_enabled = false; cmd_node->cmd_flag |= CMD_F_CANCELED; - spin_lock_irqsave(&adapter->cmd_pending_q_lock, - cmd_pending_q_flags); - list_del(&cmd_node->list); - spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, - cmd_pending_q_flags); mwifiex_insert_cmd_to_free_q(adapter, cmd_node); + mwifiex_complete_cmd(adapter, adapter->curr_cmd); + adapter->curr_cmd = NULL; spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); } @@ -981,7 +977,6 @@ mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter) spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); } adapter->cmd_wait_q.status = -1; - mwifiex_complete_cmd(adapter, adapter->curr_cmd); } /* -- cgit v1.2.3 From 81670a491849127cd5f86defd2cd03cef1b08d07 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 14 Dec 2011 08:22:35 -0800 Subject: iwlwifi: tx_sync only on PAN context Ted reported that he couldn't connect to some APs and bisected it to the tx_sync implementation. Disable it for the BSS context to fix this issue. Reported-by: Ted Ts'o Signed-off-by: Johannes Berg Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index bacc06c95e7..e0e9a3dfbc0 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -2850,6 +2850,9 @@ static int iwlagn_mac_tx_sync(struct ieee80211_hw *hw, int ret; u8 sta_id; + if (ctx->ctxid != IWL_RXON_CTX_PAN) + return 0; + IWL_DEBUG_MAC80211(priv, "enter\n"); mutex_lock(&priv->shrd->mutex); @@ -2898,6 +2901,9 @@ static void iwlagn_mac_finish_tx_sync(struct ieee80211_hw *hw, struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; struct iwl_rxon_context *ctx = vif_priv->ctx; + if (ctx->ctxid != IWL_RXON_CTX_PAN) + return; + IWL_DEBUG_MAC80211(priv, "enter\n"); mutex_lock(&priv->shrd->mutex); -- cgit v1.2.3 From 78feb35b8161acd95c33a703ed6ab6f554d29387 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Wed, 14 Dec 2011 08:22:36 -0800 Subject: iwlwifi: allow to switch to HT40 if not associated My previous patch 34a5b4b6af104cf18eb50748509528b9bdbc4036 iwlwifi: do not re-configure HT40 after associated Fix the case of HT40 after association on specified AP, but it break the association for some APs and cause not able to establish connection. We need to address HT40 before and after addociation. CC: stable@vger.kernel.org #3.0+ Reported-by: Andrej Gelenberg Signed-off-by: Wey-Yi Guy Tested-by: Andrej Gelenberg Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn-rxon.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c index a7a6def40d0..5c7c17c7166 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c @@ -606,8 +606,8 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed) if (ctx->ht.enabled) { /* if HT40 is used, it should not change * after associated except channel switch */ - if (iwl_is_associated_ctx(ctx) && - !ctx->ht.is_40mhz) + if (!ctx->ht.is_40mhz || + !iwl_is_associated_ctx(ctx)) iwlagn_config_ht40(conf, ctx); } else ctx->ht.is_40mhz = false; -- cgit v1.2.3 From b1f44e13a525d2ffb7d5afe2273b7169d6f2222e Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 14 Dec 2011 10:05:22 -0800 Subject: sparc32: Be less strict in matching %lo part of relocation. The "(insn & 0x01800000) != 0x01800000" test matches 'restore' but that is a legitimate place to see the %lo() part of a 32-bit symbol relocation, particularly in tail calls. Signed-off-by: David S. Miller Tested-by: Sergei Trofimovich --- arch/sparc/mm/btfixup.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/sparc/mm/btfixup.c b/arch/sparc/mm/btfixup.c index 5175ac2f482..8a7f81743c1 100644 --- a/arch/sparc/mm/btfixup.c +++ b/arch/sparc/mm/btfixup.c @@ -302,8 +302,7 @@ void __init btfixup(void) case 'i': /* INT */ if ((insn & 0xc1c00000) == 0x01000000) /* %HI */ set_addr(addr, q[1], fmangled, (insn & 0xffc00000) | (p[1] >> 10)); - else if ((insn & 0x80002000) == 0x80002000 && - (insn & 0x01800000) != 0x01800000) /* %LO */ + else if ((insn & 0x80002000) == 0x80002000) /* %LO */ set_addr(addr, q[1], fmangled, (insn & 0xffffe000) | (p[1] & 0x3ff)); else { prom_printf(insn_i, p, addr, insn); -- cgit v1.2.3 From 248b122b131202de95aaa3670e48465619bdff14 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 14 Dec 2011 21:59:30 +0200 Subject: usb: dwc3: core: fix cached revision on our structure All our revision macros are defined with the entire 32-bits which we read from GSNPSID register, so we must cache all 32-bits properly rather than masking the top 16-bits. This will fix all revision checks we have on current driver. Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 717ebc9ff94..600d8234851 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -264,7 +264,7 @@ static int __devinit dwc3_core_init(struct dwc3 *dwc) ret = -ENODEV; goto err0; } - dwc->revision = reg & DWC3_GSNPSREV_MASK; + dwc->revision = reg; dwc3_core_soft_reset(dwc); -- cgit v1.2.3 From 6f6c2aa33b915c574543f176dee89d7aefc115c1 Mon Sep 17 00:00:00 2001 From: john fastabend Date: Fri, 18 Nov 2011 13:35:56 -0800 Subject: [SCSI] fcoe: fix fcoe in a DCB environment by adding DCB notifiers to set skb priority Use DCB notifiers to set the skb priority to allow packets to be steered and tagged correctly over DCB enabled drivers that setup traffic classes. This allows queue_mapping() routines to be removed in these drivers that were previously inspecting the ethertype of every skb to mark FCoE/FIP frames. Signed-off-by: John Fastabend Signed-off-by: Robert Love Signed-off-by: James Bottomley --- drivers/scsi/fcoe/fcoe.c | 115 ++++++++++++++++++++++++++++++++++++++++++ drivers/scsi/fcoe/fcoe_ctlr.c | 4 ++ include/scsi/libfcoe.h | 3 ++ 3 files changed, 122 insertions(+) diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index f3f440c955f..8d67467dd9c 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -31,6 +31,8 @@ #include #include #include +#include +#include #include #include #include @@ -101,6 +103,8 @@ static int fcoe_ddp_done(struct fc_lport *, u16); static int fcoe_ddp_target(struct fc_lport *, u16, struct scatterlist *, unsigned int); static int fcoe_cpu_callback(struct notifier_block *, unsigned long, void *); +static int fcoe_dcb_app_notification(struct notifier_block *notifier, + ulong event, void *ptr); static bool fcoe_match(struct net_device *netdev); static int fcoe_create(struct net_device *netdev, enum fip_state fip_mode); @@ -129,6 +133,11 @@ static struct notifier_block fcoe_cpu_notifier = { .notifier_call = fcoe_cpu_callback, }; +/* notification function for DCB events */ +static struct notifier_block dcb_notifier = { + .notifier_call = fcoe_dcb_app_notification, +}; + static struct scsi_transport_template *fcoe_nport_scsi_transport; static struct scsi_transport_template *fcoe_vport_scsi_transport; @@ -1522,6 +1531,8 @@ int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp) skb_reset_network_header(skb); skb->mac_len = elen; skb->protocol = htons(ETH_P_FCOE); + skb->priority = port->priority; + if (fcoe->netdev->priv_flags & IFF_802_1Q_VLAN && fcoe->realdev->features & NETIF_F_HW_VLAN_TX) { skb->vlan_tci = VLAN_TAG_PRESENT | @@ -1747,6 +1758,7 @@ int fcoe_percpu_receive_thread(void *arg) */ static void fcoe_dev_setup(void) { + register_dcbevent_notifier(&dcb_notifier); register_netdevice_notifier(&fcoe_notifier); } @@ -1755,9 +1767,69 @@ static void fcoe_dev_setup(void) */ static void fcoe_dev_cleanup(void) { + unregister_dcbevent_notifier(&dcb_notifier); unregister_netdevice_notifier(&fcoe_notifier); } +static struct fcoe_interface * +fcoe_hostlist_lookup_realdev_port(struct net_device *netdev) +{ + struct fcoe_interface *fcoe; + struct net_device *real_dev; + + list_for_each_entry(fcoe, &fcoe_hostlist, list) { + if (fcoe->netdev->priv_flags & IFF_802_1Q_VLAN) + real_dev = vlan_dev_real_dev(fcoe->netdev); + else + real_dev = fcoe->netdev; + + if (netdev == real_dev) + return fcoe; + } + return NULL; +} + +static int fcoe_dcb_app_notification(struct notifier_block *notifier, + ulong event, void *ptr) +{ + struct dcb_app_type *entry = ptr; + struct fcoe_interface *fcoe; + struct net_device *netdev; + struct fcoe_port *port; + int prio; + + if (entry->app.selector != DCB_APP_IDTYPE_ETHTYPE) + return NOTIFY_OK; + + netdev = dev_get_by_index(&init_net, entry->ifindex); + if (!netdev) + return NOTIFY_OK; + + fcoe = fcoe_hostlist_lookup_realdev_port(netdev); + dev_put(netdev); + if (!fcoe) + return NOTIFY_OK; + + if (entry->dcbx & DCB_CAP_DCBX_VER_CEE) + prio = ffs(entry->app.priority) - 1; + else + prio = entry->app.priority; + + if (prio < 0) + return NOTIFY_OK; + + if (entry->app.protocol == ETH_P_FIP || + entry->app.protocol == ETH_P_FCOE) + fcoe->ctlr.priority = prio; + + if (entry->app.protocol == ETH_P_FCOE) { + port = lport_priv(fcoe->ctlr.lp); + port->priority = prio; + } + + return NOTIFY_OK; +} + /** * fcoe_device_notification() - Handler for net device events * @notifier: The context of the notification @@ -1965,6 +2037,46 @@ static bool fcoe_match(struct net_device *netdev) return true; } +/** + * fcoe_dcb_create() - Initialize DCB attributes and hooks + * @netdev: The net_device object of the L2 link that should be queried + * @port: The fcoe_port to bind FCoE APP priority with + * @ + */ +static void fcoe_dcb_create(struct fcoe_interface *fcoe) +{ +#ifdef CONFIG_DCB + int dcbx; + u8 fup, up; + struct net_device *netdev = fcoe->realdev; + struct fcoe_port *port = lport_priv(fcoe->ctlr.lp); + struct dcb_app app = { + .priority = 0, + .protocol = ETH_P_FCOE + }; + + /* setup DCB priority attributes. */ + if (netdev && netdev->dcbnl_ops && netdev->dcbnl_ops->getdcbx) { + dcbx = netdev->dcbnl_ops->getdcbx(netdev); + + if (dcbx & DCB_CAP_DCBX_VER_IEEE) { + app.selector = IEEE_8021QAZ_APP_SEL_ETHERTYPE; + up = dcb_ieee_getapp_mask(netdev, &app); + app.protocol = ETH_P_FIP; + fup = dcb_ieee_getapp_mask(netdev, &app); + } else { + app.selector = DCB_APP_IDTYPE_ETHTYPE; + up = dcb_getapp(netdev, &app); + app.protocol = ETH_P_FIP; + fup = dcb_getapp(netdev, &app); + } + + port->priority = ffs(up) ? ffs(up) - 1 : 0; + fcoe->ctlr.priority = ffs(fup) ? ffs(fup) - 1 : port->priority; + } +#endif +} + /** * fcoe_create() - Create a fcoe interface * @netdev : The net_device object the Ethernet interface to create on @@ -2008,6 +2120,9 @@ static int fcoe_create(struct net_device *netdev, enum fip_state fip_mode) /* Make this the "master" N_Port */ fcoe->ctlr.lp = lport; + /* setup DCB priority attributes. */ + fcoe_dcb_create(fcoe); + /* add to lports list */ fcoe_hostlist_add(lport); diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c index c74c4b8e71e..e7522dcc296 100644 --- a/drivers/scsi/fcoe/fcoe_ctlr.c +++ b/drivers/scsi/fcoe/fcoe_ctlr.c @@ -320,6 +320,7 @@ static void fcoe_ctlr_solicit(struct fcoe_ctlr *fip, struct fcoe_fcf *fcf) skb_put(skb, sizeof(*sol)); skb->protocol = htons(ETH_P_FIP); + skb->priority = fip->priority; skb_reset_mac_header(skb); skb_reset_network_header(skb); fip->send(fip, skb); @@ -474,6 +475,7 @@ static void fcoe_ctlr_send_keep_alive(struct fcoe_ctlr *fip, } skb_put(skb, len); skb->protocol = htons(ETH_P_FIP); + skb->priority = fip->priority; skb_reset_mac_header(skb); skb_reset_network_header(skb); fip->send(fip, skb); @@ -566,6 +568,7 @@ static int fcoe_ctlr_encaps(struct fcoe_ctlr *fip, struct fc_lport *lport, cap->fip.fip_dl_len = htons(dlen / FIP_BPW); skb->protocol = htons(ETH_P_FIP); + skb->priority = fip->priority; skb_reset_mac_header(skb); skb_reset_network_header(skb); return 0; @@ -1911,6 +1914,7 @@ static void fcoe_ctlr_vn_send(struct fcoe_ctlr *fip, skb_put(skb, len); skb->protocol = htons(ETH_P_FIP); + skb->priority = fip->priority; skb_reset_mac_header(skb); skb_reset_network_header(skb); diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h index d1e95c6ac77..5a35a2a2d3c 100644 --- a/include/scsi/libfcoe.h +++ b/include/scsi/libfcoe.h @@ -147,6 +147,7 @@ struct fcoe_ctlr { u8 map_dest; u8 spma; u8 probe_tries; + u8 priority; u8 dest_addr[ETH_ALEN]; u8 ctl_src_addr[ETH_ALEN]; @@ -301,6 +302,7 @@ struct fcoe_percpu_s { * @lport: The associated local port * @fcoe_pending_queue: The pending Rx queue of skbs * @fcoe_pending_queue_active: Indicates if the pending queue is active + * @priority: Packet priority (DCB) * @max_queue_depth: Max queue depth of pending queue * @min_queue_depth: Min queue depth of pending queue * @timer: The queue timer @@ -316,6 +318,7 @@ struct fcoe_port { struct fc_lport *lport; struct sk_buff_head fcoe_pending_queue; u8 fcoe_pending_queue_active; + u8 priority; u32 max_queue_depth; u32 min_queue_depth; struct timer_list timer; -- cgit v1.2.3 From 645e903528ca6cd510f9ac71a6a23de1a4d931e3 Mon Sep 17 00:00:00 2001 From: David Henningsson Date: Wed, 14 Dec 2011 15:52:30 +0800 Subject: ALSA: HDA: Use LPIB Position fix for Intel SCH Poulsbo Several people with this chipset have reported inconsistent/sloppy values for position reporting when the DMA position buffer is used, and that setting position_fix=1 have fixed their problems. BugLink: https://bugs.launchpad.net/bugs/825709 Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_intel.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 84d11d7ed71..c2f79e63124 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2971,7 +2971,8 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = { /* SCH */ { PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_SCH_SNOOP | - AZX_DCAPS_BUFSIZE}, + AZX_DCAPS_BUFSIZE | AZX_DCAPS_POSFIX_LPIB }, /* Poulsbo */ + /* ICH */ { PCI_DEVICE(0x8086, 0x2668), .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_BUFSIZE }, /* ICH6 */ -- cgit v1.2.3 From f4a2f4c548296168832ad4ab7e7f7b0cd0bf1214 Mon Sep 17 00:00:00 2001 From: Miao Xie Date: Wed, 14 Dec 2011 20:12:01 -0500 Subject: Btrfs: fix wrong i_size when truncating a file to a larger size Btrfsck report error 100 after the 83th case of xfstests was run, it means the i_size of the file is wrong. The reason of this bug is that: Btrfs increased i_size of the file at the beginning, but it failed to expand the file, and failed to update the i_size to the old size because there is no enough space in the file system, so we found a wrong i_size. This patch fixes this bug by updating the i_size just when we pass the file expanding and get enough space to update i-node. Signed-off-by: Miao Xie Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index c5ccec23984..4bbceb928af 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3370,6 +3370,8 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size) static int btrfs_setsize(struct inode *inode, loff_t newsize) { + struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_trans_handle *trans; loff_t oldsize = i_size_read(inode); int ret; @@ -3377,16 +3379,20 @@ static int btrfs_setsize(struct inode *inode, loff_t newsize) return 0; if (newsize > oldsize) { - i_size_write(inode, newsize); - btrfs_ordered_update_i_size(inode, i_size_read(inode), NULL); truncate_pagecache(inode, oldsize, newsize); ret = btrfs_cont_expand(inode, oldsize, newsize); - if (ret) { - btrfs_setsize(inode, oldsize); + if (ret) return ret; - } - mark_inode_dirty(inode); + trans = btrfs_start_transaction(root, 1); + if (IS_ERR(trans)) + return PTR_ERR(trans); + + i_size_write(inode, newsize); + btrfs_ordered_update_i_size(inode, i_size_read(inode), NULL); + ret = btrfs_update_inode(trans, root, inode); + + btrfs_end_transaction_throttle(trans, root); } else { /* -- cgit v1.2.3 From 3642320e07444cc46327b24977d752f99706dac2 Mon Sep 17 00:00:00 2001 From: Miao Xie Date: Wed, 14 Dec 2011 20:12:02 -0500 Subject: Btrfs: fix wrong disk space information of the files Btrfsck report errors after the 83th case of xfstests was run, The error number is 400, it means the used disk space of the file is wrong. The reason of this bug is that: The file truncation may fail when the space of the file system is not enough, and leave some file extents, whose offset are beyond the end of the files. When we want to expand those files, we will drop those file extents, and put in dummy file extents, and then we should update the i-node. But btrfs forgets to do it. This patch adds the forgotten i-node update. Signed-off-by: Miao Xie Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 4bbceb928af..f1c4bceed07 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3327,7 +3327,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size) u64 hint_byte = 0; hole_size = last_byte - cur_offset; - trans = btrfs_start_transaction(root, 2); + trans = btrfs_start_transaction(root, 3); if (IS_ERR(trans)) { err = PTR_ERR(trans); break; @@ -3337,6 +3337,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size) cur_offset + hole_size, &hint_byte, 1); if (err) { + btrfs_update_inode(trans, root, inode); btrfs_end_transaction(trans, root); break; } @@ -3346,6 +3347,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size) 0, hole_size, 0, hole_size, 0, 0, 0); if (err) { + btrfs_update_inode(trans, root, inode); btrfs_end_transaction(trans, root); break; } @@ -3353,6 +3355,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size) btrfs_drop_extent_cache(inode, hole_start, last_byte - 1, 0); + btrfs_update_inode(trans, root, inode); btrfs_end_transaction(trans, root); } free_extent_map(em); -- cgit v1.2.3 From 39fb26c398ddf8d7794a85e896cfe1a42e55524b Mon Sep 17 00:00:00 2001 From: Miao Xie Date: Wed, 14 Dec 2011 20:12:02 -0500 Subject: Btrfs: fix inaccurate available space on raid0 profile When we use raid0 as the data profile, df command may show us a very inaccurate value of the available space, which may be much less than the real one. It may make the users puzzled. Fix it by changing the calculation of the available space, and making it be more similar to a fake chunk allocation. Signed-off-by: Miao Xie Signed-off-by: Chris Mason --- fs/btrfs/super.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 1a3ce9e0b49..41495dce4db 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1079,7 +1079,7 @@ static int btrfs_calc_avail_data_space(struct btrfs_root *root, u64 *free_bytes) u64 avail_space; u64 used_space; u64 min_stripe_size; - int min_stripes = 1; + int min_stripes = 1, num_stripes = 1; int i = 0, nr_devices; int ret; @@ -1093,12 +1093,16 @@ static int btrfs_calc_avail_data_space(struct btrfs_root *root, u64 *free_bytes) /* calc min stripe number for data space alloction */ type = btrfs_get_alloc_profile(root, 1); - if (type & BTRFS_BLOCK_GROUP_RAID0) + if (type & BTRFS_BLOCK_GROUP_RAID0) { min_stripes = 2; - else if (type & BTRFS_BLOCK_GROUP_RAID1) + num_stripes = nr_devices; + } else if (type & BTRFS_BLOCK_GROUP_RAID1) { min_stripes = 2; - else if (type & BTRFS_BLOCK_GROUP_RAID10) + num_stripes = 2; + } else if (type & BTRFS_BLOCK_GROUP_RAID10) { min_stripes = 4; + num_stripes = 4; + } if (type & BTRFS_BLOCK_GROUP_DUP) min_stripe_size = 2 * BTRFS_STRIPE_LEN; @@ -1167,13 +1171,16 @@ static int btrfs_calc_avail_data_space(struct btrfs_root *root, u64 *free_bytes) i = nr_devices - 1; avail_space = 0; while (nr_devices >= min_stripes) { + if (num_stripes > nr_devices) + num_stripes = nr_devices; + if (devices_info[i].max_avail >= min_stripe_size) { int j; u64 alloc_size; - avail_space += devices_info[i].max_avail * min_stripes; + avail_space += devices_info[i].max_avail * num_stripes; alloc_size = devices_info[i].max_avail; - for (j = i + 1 - min_stripes; j <= i; j++) + for (j = i + 1 - num_stripes; j <= i; j++) devices_info[j].max_avail -= alloc_size; } i--; -- cgit v1.2.3 From f8e9e0b07be0464e12366631da3da73a1a62449c Mon Sep 17 00:00:00 2001 From: Arne Jansen Date: Wed, 14 Dec 2011 20:12:02 -0500 Subject: btrfs: keep orphans for subvolume deletion Since we have the free space caches, btrfs_orphan_cleanup also runs for the tree_root. Unfortunately this also cleans up the orphans used to mark subvol deletions in progress. Currently if a subvol deletion gets interrupted twice by umount/mount, the deletion will not be continued and the space permanently lost, though it would be possible to write a tool to recover those lost subvol deletions. This patch checks if the orphan belongs to a subvol (dead root) and skips the deletion. Signed-off-by: Arne Jansen Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index f1c4bceed07..4a31493d97a 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -2158,6 +2158,38 @@ int btrfs_orphan_cleanup(struct btrfs_root *root) if (ret && ret != -ESTALE) goto out; + if (ret == -ESTALE && root == root->fs_info->tree_root) { + struct btrfs_root *dead_root; + struct btrfs_fs_info *fs_info = root->fs_info; + int is_dead_root = 0; + + /* + * this is an orphan in the tree root. Currently these + * could come from 2 sources: + * a) a snapshot deletion in progress + * b) a free space cache inode + * We need to distinguish those two, as the snapshot + * orphan must not get deleted. + * find_dead_roots already ran before us, so if this + * is a snapshot deletion, we should find the root + * in the dead_roots list + */ + spin_lock(&fs_info->trans_lock); + list_for_each_entry(dead_root, &fs_info->dead_roots, + root_list) { + if (dead_root->root_key.objectid == + found_key.objectid) { + is_dead_root = 1; + break; + } + } + spin_unlock(&fs_info->trans_lock); + if (is_dead_root) { + /* prevent this orphan from being found again */ + key.offset = found_key.objectid - 1; + continue; + } + } /* * Inode is already gone but the orphan item is still there, * kill the orphan item. -- cgit v1.2.3 From 306424cc880a0fbbdc99eee1f43d056a301a180f Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Wed, 14 Dec 2011 20:12:02 -0500 Subject: Btrfs: fix ctime update of on-disk inode To reproduce the bug: # touch /mnt/tmp # stat /mnt/tmp | grep Change Change: 2011-12-09 09:32:23.412105981 +0800 # chattr +i /mnt/tmp # stat /mnt/tmp | grep Change Change: 2011-12-09 09:32:43.198105295 +0800 # umount /mnt # mount /dev/loop1 /mnt # stat /mnt/tmp | grep Change Change: 2011-12-09 09:32:23.412105981 +0800 We should update ctime of in-memory inode before calling btrfs_update_inode(). Signed-off-by: Li Zefan Signed-off-by: Chris Mason --- fs/btrfs/ioctl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 72d461656f6..40eaa9fdf07 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -252,11 +252,11 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg) trans = btrfs_join_transaction(root); BUG_ON(IS_ERR(trans)); + btrfs_update_iflags(inode); + inode->i_ctime = CURRENT_TIME; ret = btrfs_update_inode(trans, root, inode); BUG_ON(ret); - btrfs_update_iflags(inode); - inode->i_ctime = CURRENT_TIME; btrfs_end_transaction(trans, root); mnt_drop_write(file->f_path.mnt); -- cgit v1.2.3 From 8f3b65a3d66bcc086e1eb040b7545e70681f2ed1 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Thu, 15 Dec 2011 09:29:43 -0500 Subject: Btrfs: add a cond_resched() into the worker loop If we have a constant stream of end_io completions or crc work, we can hit softlockup messages from the async helper threads. This adds a cond_resched() into the loop to avoid them. Signed-off-by: Chris Mason --- fs/btrfs/async-thread.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c index 7ec14097fef..203e849dc9c 100644 --- a/fs/btrfs/async-thread.c +++ b/fs/btrfs/async-thread.c @@ -331,7 +331,7 @@ again: run_ordered_completions(worker->workers, work); check_pending_worker_creates(worker); - + cond_resched(); } spin_lock_irq(&worker->lock); -- cgit v1.2.3 From ad19db71f498fd858dd84ce603efcf97e321f184 Mon Sep 17 00:00:00 2001 From: Casey Schaufler Date: Thu, 15 Dec 2011 10:09:07 -0500 Subject: BTRFS: Establish i_ops before calling d_instantiate The Smack LSM hook for security_d_instantiate checks the inode's i_op->getxattr value to determine if the containing filesystem supports extended attributes. The BTRFS filesystem sets the inode's i_op value only after it has instantiated the inode. This results in Smack incorrectly giving new BTRFS inodes attributes from the filesystem defaults on the assumption that values can't be stored on the filesystem. This patch moves the assignment of inode operation vectors ahead of the calls to d_instantiate, letting Smack know that the filesystem supports extended attributes. There should be no impact on the performance or behavior of BTRFS. Signed-off-by: Casey Schaufler Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 31 ++++++++++++++++++++++++++----- 1 file changed, 26 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 4a31493d97a..d4a9195c7f0 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4596,11 +4596,18 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry, goto out_unlock; } + /* + * If the active LSM wants to access the inode during + * d_instantiate it needs these. Smack checks to see + * if the filesystem supports xattrs by looking at the + * ops vector. + */ + + inode->i_op = &btrfs_special_inode_operations; err = btrfs_add_nondir(trans, dir, dentry, inode, 0, index); if (err) drop_inode = 1; else { - inode->i_op = &btrfs_special_inode_operations; init_special_inode(inode, inode->i_mode, rdev); btrfs_update_inode(trans, root, inode); } @@ -4654,14 +4661,21 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry, goto out_unlock; } + /* + * If the active LSM wants to access the inode during + * d_instantiate it needs these. Smack checks to see + * if the filesystem supports xattrs by looking at the + * ops vector. + */ + inode->i_fop = &btrfs_file_operations; + inode->i_op = &btrfs_file_inode_operations; + err = btrfs_add_nondir(trans, dir, dentry, inode, 0, index); if (err) drop_inode = 1; else { inode->i_mapping->a_ops = &btrfs_aops; inode->i_mapping->backing_dev_info = &root->fs_info->bdi; - inode->i_fop = &btrfs_file_operations; - inode->i_op = &btrfs_file_inode_operations; BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops; } out_unlock: @@ -7117,14 +7131,21 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry, goto out_unlock; } + /* + * If the active LSM wants to access the inode during + * d_instantiate it needs these. Smack checks to see + * if the filesystem supports xattrs by looking at the + * ops vector. + */ + inode->i_fop = &btrfs_file_operations; + inode->i_op = &btrfs_file_inode_operations; + err = btrfs_add_nondir(trans, dir, dentry, inode, 0, index); if (err) drop_inode = 1; else { inode->i_mapping->a_ops = &btrfs_aops; inode->i_mapping->backing_dev_info = &root->fs_info->bdi; - inode->i_fop = &btrfs_file_operations; - inode->i_op = &btrfs_file_inode_operations; BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops; } if (drop_inode) -- cgit v1.2.3 From 0dc3b84a73267f47a75468f924f5d58a840e3152 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 18 Nov 2011 14:37:27 -0500 Subject: Btrfs: fix num_workers_starting bug and other bugs in async thread Al pointed out we have some random problems with the way we account for num_workers_starting in the async thread stuff. First of all we need to make sure to decrement num_workers_starting if we fail to start the worker, so make __btrfs_start_workers do this. Also fix __btrfs_start_workers so that it doesn't call btrfs_stop_workers(), there is no point in stopping everybody if we failed to create a worker. Also check_pending_worker_creates needs to call __btrfs_start_work in it's work function since it already increments num_workers_starting. People only start one worker at a time, so get rid of the num_workers argument everywhere, and make btrfs_queue_worker a void since it will always succeed. Thanks, Signed-off-by: Josef Bacik --- fs/btrfs/async-thread.c | 115 +++++++++++++++++++++++------------------------- fs/btrfs/async-thread.h | 4 +- fs/btrfs/disk-io.c | 34 ++++++++------ fs/btrfs/scrub.c | 8 +++- 4 files changed, 83 insertions(+), 78 deletions(-) diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c index 7ec14097fef..af8e117c897 100644 --- a/fs/btrfs/async-thread.c +++ b/fs/btrfs/async-thread.c @@ -64,6 +64,8 @@ struct btrfs_worker_thread { int idle; }; +static int __btrfs_start_workers(struct btrfs_workers *workers); + /* * btrfs_start_workers uses kthread_run, which can block waiting for memory * for a very long time. It will actually throttle on page writeback, @@ -88,27 +90,10 @@ static void start_new_worker_func(struct btrfs_work *work) { struct worker_start *start; start = container_of(work, struct worker_start, work); - btrfs_start_workers(start->queue, 1); + __btrfs_start_workers(start->queue); kfree(start); } -static int start_new_worker(struct btrfs_workers *queue) -{ - struct worker_start *start; - int ret; - - start = kzalloc(sizeof(*start), GFP_NOFS); - if (!start) - return -ENOMEM; - - start->work.func = start_new_worker_func; - start->queue = queue; - ret = btrfs_queue_worker(queue->atomic_worker_start, &start->work); - if (ret) - kfree(start); - return ret; -} - /* * helper function to move a thread onto the idle list after it * has finished some requests. @@ -153,12 +138,20 @@ static void check_busy_worker(struct btrfs_worker_thread *worker) static void check_pending_worker_creates(struct btrfs_worker_thread *worker) { struct btrfs_workers *workers = worker->workers; + struct worker_start *start; unsigned long flags; rmb(); if (!workers->atomic_start_pending) return; + start = kzalloc(sizeof(*start), GFP_NOFS); + if (!start) + return; + + start->work.func = start_new_worker_func; + start->queue = workers; + spin_lock_irqsave(&workers->lock, flags); if (!workers->atomic_start_pending) goto out; @@ -170,10 +163,11 @@ static void check_pending_worker_creates(struct btrfs_worker_thread *worker) workers->num_workers_starting += 1; spin_unlock_irqrestore(&workers->lock, flags); - start_new_worker(workers); + btrfs_queue_worker(workers->atomic_worker_start, &start->work); return; out: + kfree(start); spin_unlock_irqrestore(&workers->lock, flags); } @@ -462,56 +456,55 @@ void btrfs_init_workers(struct btrfs_workers *workers, char *name, int max, * starts new worker threads. This does not enforce the max worker * count in case you need to temporarily go past it. */ -static int __btrfs_start_workers(struct btrfs_workers *workers, - int num_workers) +static int __btrfs_start_workers(struct btrfs_workers *workers) { struct btrfs_worker_thread *worker; int ret = 0; - int i; - for (i = 0; i < num_workers; i++) { - worker = kzalloc(sizeof(*worker), GFP_NOFS); - if (!worker) { - ret = -ENOMEM; - goto fail; - } + worker = kzalloc(sizeof(*worker), GFP_NOFS); + if (!worker) { + ret = -ENOMEM; + goto fail; + } - INIT_LIST_HEAD(&worker->pending); - INIT_LIST_HEAD(&worker->prio_pending); - INIT_LIST_HEAD(&worker->worker_list); - spin_lock_init(&worker->lock); - - atomic_set(&worker->num_pending, 0); - atomic_set(&worker->refs, 1); - worker->workers = workers; - worker->task = kthread_run(worker_loop, worker, - "btrfs-%s-%d", workers->name, - workers->num_workers + i); - if (IS_ERR(worker->task)) { - ret = PTR_ERR(worker->task); - kfree(worker); - goto fail; - } - spin_lock_irq(&workers->lock); - list_add_tail(&worker->worker_list, &workers->idle_list); - worker->idle = 1; - workers->num_workers++; - workers->num_workers_starting--; - WARN_ON(workers->num_workers_starting < 0); - spin_unlock_irq(&workers->lock); + INIT_LIST_HEAD(&worker->pending); + INIT_LIST_HEAD(&worker->prio_pending); + INIT_LIST_HEAD(&worker->worker_list); + spin_lock_init(&worker->lock); + + atomic_set(&worker->num_pending, 0); + atomic_set(&worker->refs, 1); + worker->workers = workers; + worker->task = kthread_run(worker_loop, worker, + "btrfs-%s-%d", workers->name, + workers->num_workers + 1); + if (IS_ERR(worker->task)) { + ret = PTR_ERR(worker->task); + kfree(worker); + goto fail; } + spin_lock_irq(&workers->lock); + list_add_tail(&worker->worker_list, &workers->idle_list); + worker->idle = 1; + workers->num_workers++; + workers->num_workers_starting--; + WARN_ON(workers->num_workers_starting < 0); + spin_unlock_irq(&workers->lock); + return 0; fail: - btrfs_stop_workers(workers); + spin_lock_irq(&workers->lock); + workers->num_workers_starting--; + spin_unlock_irq(&workers->lock); return ret; } -int btrfs_start_workers(struct btrfs_workers *workers, int num_workers) +int btrfs_start_workers(struct btrfs_workers *workers) { spin_lock_irq(&workers->lock); - workers->num_workers_starting += num_workers; + workers->num_workers_starting++; spin_unlock_irq(&workers->lock); - return __btrfs_start_workers(workers, num_workers); + return __btrfs_start_workers(workers); } /* @@ -568,6 +561,7 @@ static struct btrfs_worker_thread *find_worker(struct btrfs_workers *workers) struct btrfs_worker_thread *worker; unsigned long flags; struct list_head *fallback; + int ret; again: spin_lock_irqsave(&workers->lock, flags); @@ -584,7 +578,9 @@ again: workers->num_workers_starting++; spin_unlock_irqrestore(&workers->lock, flags); /* we're below the limit, start another worker */ - __btrfs_start_workers(workers, 1); + ret = __btrfs_start_workers(workers); + if (ret) + goto fallback; goto again; } } @@ -665,7 +661,7 @@ void btrfs_set_work_high_prio(struct btrfs_work *work) /* * places a struct btrfs_work into the pending queue of one of the kthreads */ -int btrfs_queue_worker(struct btrfs_workers *workers, struct btrfs_work *work) +void btrfs_queue_worker(struct btrfs_workers *workers, struct btrfs_work *work) { struct btrfs_worker_thread *worker; unsigned long flags; @@ -673,7 +669,7 @@ int btrfs_queue_worker(struct btrfs_workers *workers, struct btrfs_work *work) /* don't requeue something already on a list */ if (test_and_set_bit(WORK_QUEUED_BIT, &work->flags)) - goto out; + return; worker = find_worker(workers); if (workers->ordered) { @@ -712,7 +708,4 @@ int btrfs_queue_worker(struct btrfs_workers *workers, struct btrfs_work *work) if (wake) wake_up_process(worker->task); spin_unlock_irqrestore(&worker->lock, flags); - -out: - return 0; } diff --git a/fs/btrfs/async-thread.h b/fs/btrfs/async-thread.h index 5077746cf85..f34cc31fa3c 100644 --- a/fs/btrfs/async-thread.h +++ b/fs/btrfs/async-thread.h @@ -109,8 +109,8 @@ struct btrfs_workers { char *name; }; -int btrfs_queue_worker(struct btrfs_workers *workers, struct btrfs_work *work); -int btrfs_start_workers(struct btrfs_workers *workers, int num_workers); +void btrfs_queue_worker(struct btrfs_workers *workers, struct btrfs_work *work); +int btrfs_start_workers(struct btrfs_workers *workers); int btrfs_stop_workers(struct btrfs_workers *workers); void btrfs_init_workers(struct btrfs_workers *workers, char *name, int max, struct btrfs_workers *async_starter); diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 94abc25392f..3f9d5551e58 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2194,19 +2194,27 @@ struct btrfs_root *open_ctree(struct super_block *sb, fs_info->endio_meta_write_workers.idle_thresh = 2; fs_info->readahead_workers.idle_thresh = 2; - btrfs_start_workers(&fs_info->workers, 1); - btrfs_start_workers(&fs_info->generic_worker, 1); - btrfs_start_workers(&fs_info->submit_workers, 1); - btrfs_start_workers(&fs_info->delalloc_workers, 1); - btrfs_start_workers(&fs_info->fixup_workers, 1); - btrfs_start_workers(&fs_info->endio_workers, 1); - btrfs_start_workers(&fs_info->endio_meta_workers, 1); - btrfs_start_workers(&fs_info->endio_meta_write_workers, 1); - btrfs_start_workers(&fs_info->endio_write_workers, 1); - btrfs_start_workers(&fs_info->endio_freespace_worker, 1); - btrfs_start_workers(&fs_info->delayed_workers, 1); - btrfs_start_workers(&fs_info->caching_workers, 1); - btrfs_start_workers(&fs_info->readahead_workers, 1); + /* + * btrfs_start_workers can really only fail because of ENOMEM so just + * return -ENOMEM if any of these fail. + */ + ret = btrfs_start_workers(&fs_info->workers); + ret |= btrfs_start_workers(&fs_info->generic_worker); + ret |= btrfs_start_workers(&fs_info->submit_workers); + ret |= btrfs_start_workers(&fs_info->delalloc_workers); + ret |= btrfs_start_workers(&fs_info->fixup_workers); + ret |= btrfs_start_workers(&fs_info->endio_workers); + ret |= btrfs_start_workers(&fs_info->endio_meta_workers); + ret |= btrfs_start_workers(&fs_info->endio_meta_write_workers); + ret |= btrfs_start_workers(&fs_info->endio_write_workers); + ret |= btrfs_start_workers(&fs_info->endio_freespace_worker); + ret |= btrfs_start_workers(&fs_info->delayed_workers); + ret |= btrfs_start_workers(&fs_info->caching_workers); + ret |= btrfs_start_workers(&fs_info->readahead_workers); + if (ret) { + ret = -ENOMEM; + goto fail_sb_buffer; + } fs_info->bdi.ra_pages *= btrfs_super_num_devices(disk_super); fs_info->bdi.ra_pages = max(fs_info->bdi.ra_pages, diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index c27bcb67f33..ddf2c90d3fc 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -1535,18 +1535,22 @@ static noinline_for_stack int scrub_supers(struct scrub_dev *sdev) static noinline_for_stack int scrub_workers_get(struct btrfs_root *root) { struct btrfs_fs_info *fs_info = root->fs_info; + int ret = 0; mutex_lock(&fs_info->scrub_lock); if (fs_info->scrub_workers_refcnt == 0) { btrfs_init_workers(&fs_info->scrub_workers, "scrub", fs_info->thread_pool_size, &fs_info->generic_worker); fs_info->scrub_workers.idle_thresh = 4; - btrfs_start_workers(&fs_info->scrub_workers, 1); + ret = btrfs_start_workers(&fs_info->scrub_workers); + if (ret) + goto out; } ++fs_info->scrub_workers_refcnt; +out: mutex_unlock(&fs_info->scrub_lock); - return 0; + return ret; } static noinline_for_stack void scrub_workers_put(struct btrfs_root *root) -- cgit v1.2.3 From 22c44fe65adacd20a174f3f54686509ee94ef7be Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 30 Nov 2011 10:45:38 -0500 Subject: Btrfs: deal with enospc from dirtying inodes properly Now that we're properly keeping track of delayed inode space we've been getting a lot of warnings out of btrfs_dirty_inode() when running xfstest 83. This is because a bunch of people call mark_inode_dirty, which is void so we can't return ENOSPC. This needs to be fixed in a few areas 1) file_update_time - this updates the mtime and such when writing to a file, which will call mark_inode_dirty. So copy file_update_time into btrfs so we can call btrfs_dirty_inode directly and return an error if we get one appropriately. 2) fix symlinks to use btrfs_setattr for ->setattr. For some reason we weren't setting ->setattr for symlinks, even though we should have been. This catches one of the cases where we were getting errors in mark_inode_dirty. 3) Fix btrfs_setattr and btrfs_setsize to call btrfs_dirty_inode directly instead of mark_inode_dirty. This lets us return errors properly for truncate and chown/anything related to setattr. 4) Add a new btrfs_fs_dirty_inode which will just call btrfs_dirty_inode and print an error if we have one. The only remaining user we can't control for this is touch_atime(), but we don't really want to keep people from walking down the tree if we don't have space to save the atime update, so just complain but don't worry about it. With this patch xfstests 83 complains a handful of times instead of hundreds of times. Thanks, Signed-off-by: Josef Bacik --- fs/btrfs/ctree.h | 3 ++- fs/btrfs/file.c | 6 ++++- fs/btrfs/inode.c | 80 ++++++++++++++++++++++++++++++++++++++++++-------------- fs/btrfs/super.c | 13 ++++++++- 4 files changed, 80 insertions(+), 22 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 50634abef9b..67385033323 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2692,7 +2692,8 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf); int btrfs_readpage(struct file *file, struct page *page); void btrfs_evict_inode(struct inode *inode); int btrfs_write_inode(struct inode *inode, struct writeback_control *wbc); -void btrfs_dirty_inode(struct inode *inode, int flags); +int btrfs_dirty_inode(struct inode *inode); +int btrfs_update_time(struct file *file); struct inode *btrfs_alloc_inode(struct super_block *sb); void btrfs_destroy_inode(struct inode *inode); int btrfs_drop_inode(struct inode *inode); diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index f2e92828960..cc7492c823f 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1387,7 +1387,11 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb, goto out; } - file_update_time(file); + err = btrfs_update_time(file); + if (err) { + mutex_unlock(&inode->i_mutex); + goto out; + } BTRFS_I(inode)->sequence++; start_pos = round_down(pos, root->sectorsize); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index c5ccec23984..eec33b9c953 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -38,6 +38,7 @@ #include #include #include +#include #include "compat.h" #include "ctree.h" #include "disk-io.h" @@ -3386,7 +3387,7 @@ static int btrfs_setsize(struct inode *inode, loff_t newsize) return ret; } - mark_inode_dirty(inode); + ret = btrfs_dirty_inode(inode); } else { /* @@ -3426,9 +3427,9 @@ static int btrfs_setattr(struct dentry *dentry, struct iattr *attr) if (attr->ia_valid) { setattr_copy(inode, attr); - mark_inode_dirty(inode); + err = btrfs_dirty_inode(inode); - if (attr->ia_valid & ATTR_MODE) + if (!err && attr->ia_valid & ATTR_MODE) err = btrfs_acl_chmod(inode); } @@ -4204,42 +4205,80 @@ int btrfs_write_inode(struct inode *inode, struct writeback_control *wbc) * FIXME, needs more benchmarking...there are no reasons other than performance * to keep or drop this code. */ -void btrfs_dirty_inode(struct inode *inode, int flags) +int btrfs_dirty_inode(struct inode *inode) { struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_trans_handle *trans; int ret; if (BTRFS_I(inode)->dummy_inode) - return; + return 0; trans = btrfs_join_transaction(root); - BUG_ON(IS_ERR(trans)); + if (IS_ERR(trans)) + return PTR_ERR(trans); ret = btrfs_update_inode(trans, root, inode); if (ret && ret == -ENOSPC) { /* whoops, lets try again with the full transaction */ btrfs_end_transaction(trans, root); trans = btrfs_start_transaction(root, 1); - if (IS_ERR(trans)) { - printk_ratelimited(KERN_ERR "btrfs: fail to " - "dirty inode %llu error %ld\n", - (unsigned long long)btrfs_ino(inode), - PTR_ERR(trans)); - return; - } + if (IS_ERR(trans)) + return PTR_ERR(trans); ret = btrfs_update_inode(trans, root, inode); - if (ret) { - printk_ratelimited(KERN_ERR "btrfs: fail to " - "dirty inode %llu error %d\n", - (unsigned long long)btrfs_ino(inode), - ret); - } } btrfs_end_transaction(trans, root); if (BTRFS_I(inode)->delayed_node) btrfs_balance_delayed_items(root); + + return ret; +} + +/* + * This is a copy of file_update_time. We need this so we can return error on + * ENOSPC for updating the inode in the case of file write and mmap writes. + */ +int btrfs_update_time(struct file *file) +{ + struct inode *inode = file->f_path.dentry->d_inode; + struct timespec now; + int ret; + enum { S_MTIME = 1, S_CTIME = 2, S_VERSION = 4 } sync_it = 0; + + /* First try to exhaust all avenues to not sync */ + if (IS_NOCMTIME(inode)) + return 0; + + now = current_fs_time(inode->i_sb); + if (!timespec_equal(&inode->i_mtime, &now)) + sync_it = S_MTIME; + + if (!timespec_equal(&inode->i_ctime, &now)) + sync_it |= S_CTIME; + + if (IS_I_VERSION(inode)) + sync_it |= S_VERSION; + + if (!sync_it) + return 0; + + /* Finally allowed to write? Takes lock. */ + if (mnt_want_write_file(file)) + return 0; + + /* Only change inode inside the lock region */ + if (sync_it & S_VERSION) + inode_inc_iversion(inode); + if (sync_it & S_CTIME) + inode->i_ctime = now; + if (sync_it & S_MTIME) + inode->i_mtime = now; + ret = btrfs_dirty_inode(inode); + if (!ret) + mark_inode_dirty_sync(inode); + mnt_drop_write(file->f_path.mnt); + return ret; } /* @@ -6304,6 +6343,8 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) u64 page_end; ret = btrfs_delalloc_reserve_space(inode, PAGE_CACHE_SIZE); + if (!ret) + ret = btrfs_update_time(vma->vm_file); if (ret) { if (ret == -ENOMEM) ret = VM_FAULT_OOM; @@ -7353,6 +7394,7 @@ static const struct inode_operations btrfs_symlink_inode_operations = { .follow_link = page_follow_link_light, .put_link = page_put_link, .getattr = btrfs_getattr, + .setattr = btrfs_setattr, .permission = btrfs_permission, .setxattr = btrfs_setxattr, .getxattr = btrfs_getxattr, diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 1a3ce9e0b49..05b40457e26 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -41,6 +41,7 @@ #include #include #include +#include #include "compat.h" #include "delayed-inode.h" #include "ctree.h" @@ -1290,6 +1291,16 @@ static int btrfs_unfreeze(struct super_block *sb) return 0; } +static void btrfs_fs_dirty_inode(struct inode *inode, int flags) +{ + int ret; + + ret = btrfs_dirty_inode(inode); + if (ret) + printk_ratelimited(KERN_ERR "btrfs: fail to dirty inode %Lu " + "error %d\n", btrfs_ino(inode), ret); +} + static const struct super_operations btrfs_super_ops = { .drop_inode = btrfs_drop_inode, .evict_inode = btrfs_evict_inode, @@ -1297,7 +1308,7 @@ static const struct super_operations btrfs_super_ops = { .sync_fs = btrfs_sync_fs, .show_options = btrfs_show_options, .write_inode = btrfs_write_inode, - .dirty_inode = btrfs_dirty_inode, + .dirty_inode = btrfs_fs_dirty_inode, .alloc_inode = btrfs_alloc_inode, .destroy_inode = btrfs_destroy_inode, .statfs = btrfs_statfs, -- cgit v1.2.3 From 660d3f6cde552323578b85fc5a09a6742f1fe804 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 9 Dec 2011 11:18:51 -0500 Subject: Btrfs: fix how we do delalloc reservations and how we free reservations on error Running xfstests 269 with some tracing my scripts kept spitting out errors about releasing bytes that we didn't actually have reserved. This took me down a huge rabbit hole and it turns out the way we deal with reserved_extents is wrong, we need to only be setting it if the reservation succeeds, otherwise the free() method will come in and unreserve space that isn't actually reserved yet, which can lead to other warnings and such. The math was all working out right in the end, but it caused all sorts of other issues in addition to making my scripts yell and scream and generally make it impossible for me to track down the original issue I was looking for. The other problem is with our error handling in the reservation code. There are two cases that we need to deal with 1) We raced with free. In this case free won't free anything because csum_bytes is modified before we dro the lock in our reservation path, so free rightly doesn't release any space because the reservation code may be depending on that reservation. However if we fail, we need the reservation side to do the free at that point since that space is no longer in use. So as it stands the code was doing this fine and it worked out, except in case #2 2) We don't race with free. Nobody comes in and changes anything, and our reservation fails. In this case we didn't reserve anything anyway and we just need to clean up csum_bytes but not free anything. So we keep track of csum_bytes before we drop the lock and if it hasn't changed we know we can just decrement csum_bytes and carry on. Because of the case where we can race with free()'s since we have to drop our spin_lock to do the reservation, I'm going to serialize all reservations with the i_mutex. We already get this for free in the heavy use paths, truncate and file write all hold the i_mutex, just needed to add it to page_mkwrite and various ioctl/balance things. With this patch my space leak scripts no longer scream bloody murder. Thanks, Signed-off-by: Josef Bacik --- fs/btrfs/extent-tree.c | 43 ++++++++++++++++++++++++++++++------------- fs/btrfs/inode.c | 10 ++++++++++ fs/btrfs/ioctl.c | 2 ++ fs/btrfs/relocation.c | 2 ++ 4 files changed, 44 insertions(+), 13 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 05e1386b8be..4eb4d2748be 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4203,12 +4203,17 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_block_rsv *block_rsv = &root->fs_info->delalloc_block_rsv; u64 to_reserve = 0; + u64 csum_bytes; unsigned nr_extents = 0; + int extra_reserve = 0; int flush = 1; int ret; + /* Need to be holding the i_mutex here if we aren't free space cache */ if (btrfs_is_free_space_inode(root, inode)) flush = 0; + else + WARN_ON(!mutex_is_locked(&inode->i_mutex)); if (flush && btrfs_transaction_in_commit(root->fs_info)) schedule_timeout(1); @@ -4219,11 +4224,9 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) BTRFS_I(inode)->outstanding_extents++; if (BTRFS_I(inode)->outstanding_extents > - BTRFS_I(inode)->reserved_extents) { + BTRFS_I(inode)->reserved_extents) nr_extents = BTRFS_I(inode)->outstanding_extents - BTRFS_I(inode)->reserved_extents; - BTRFS_I(inode)->reserved_extents += nr_extents; - } /* * Add an item to reserve for updating the inode when we complete the @@ -4231,11 +4234,12 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) */ if (!BTRFS_I(inode)->delalloc_meta_reserved) { nr_extents++; - BTRFS_I(inode)->delalloc_meta_reserved = 1; + extra_reserve = 1; } to_reserve = btrfs_calc_trans_metadata_size(root, nr_extents); to_reserve += calc_csum_metadata_size(inode, num_bytes, 1); + csum_bytes = BTRFS_I(inode)->csum_bytes; spin_unlock(&BTRFS_I(inode)->lock); ret = reserve_metadata_bytes(root, block_rsv, to_reserve, flush); @@ -4245,22 +4249,35 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) spin_lock(&BTRFS_I(inode)->lock); dropped = drop_outstanding_extent(inode); - to_free = calc_csum_metadata_size(inode, num_bytes, 0); - spin_unlock(&BTRFS_I(inode)->lock); - to_free += btrfs_calc_trans_metadata_size(root, dropped); - /* - * Somebody could have come in and twiddled with the - * reservation, so if we have to free more than we would have - * reserved from this reservation go ahead and release those - * bytes. + * If the inodes csum_bytes is the same as the original + * csum_bytes then we know we haven't raced with any free()ers + * so we can just reduce our inodes csum bytes and carry on. + * Otherwise we have to do the normal free thing to account for + * the case that the free side didn't free up its reserve + * because of this outstanding reservation. */ - to_free -= to_reserve; + if (BTRFS_I(inode)->csum_bytes == csum_bytes) + calc_csum_metadata_size(inode, num_bytes, 0); + else + to_free = calc_csum_metadata_size(inode, num_bytes, 0); + spin_unlock(&BTRFS_I(inode)->lock); + if (dropped) + to_free += btrfs_calc_trans_metadata_size(root, dropped); + if (to_free) btrfs_block_rsv_release(root, block_rsv, to_free); return ret; } + spin_lock(&BTRFS_I(inode)->lock); + if (extra_reserve) { + BTRFS_I(inode)->delalloc_meta_reserved = 1; + nr_extents--; + } + BTRFS_I(inode)->reserved_extents += nr_extents; + spin_unlock(&BTRFS_I(inode)->lock); + block_rsv_add_bytes(block_rsv, to_reserve, 1); return 0; diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index eec33b9c953..8938174e6bc 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -2192,7 +2192,14 @@ int btrfs_orphan_cleanup(struct btrfs_root *root) continue; } nr_truncate++; + /* + * Need to hold the imutex for reservation purposes, not + * a huge deal here but I have a WARN_ON in + * btrfs_delalloc_reserve_space to catch offenders. + */ + mutex_lock(&inode->i_mutex); ret = btrfs_truncate(inode); + mutex_unlock(&inode->i_mutex); } else { nr_unlink++; } @@ -6342,7 +6349,10 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) u64 page_start; u64 page_end; + /* Need this to keep space reservations serialized */ + mutex_lock(&inode->i_mutex); ret = btrfs_delalloc_reserve_space(inode, PAGE_CACHE_SIZE); + mutex_unlock(&inode->i_mutex); if (!ret) ret = btrfs_update_time(vma->vm_file); if (ret) { diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 72d461656f6..dd889166235 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -858,8 +858,10 @@ static int cluster_pages_for_defrag(struct inode *inode, return 0; file_end = (isize - 1) >> PAGE_CACHE_SHIFT; + mutex_lock(&inode->i_mutex); ret = btrfs_delalloc_reserve_space(inode, num_pages << PAGE_CACHE_SHIFT); + mutex_unlock(&inode->i_mutex); if (ret) return ret; again: diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index dff29d5e151..cfb55434a46 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -2947,7 +2947,9 @@ static int relocate_file_extent_cluster(struct inode *inode, index = (cluster->start - offset) >> PAGE_CACHE_SHIFT; last_index = (cluster->end - offset) >> PAGE_CACHE_SHIFT; while (index <= last_index) { + mutex_lock(&inode->i_mutex); ret = btrfs_delalloc_reserve_metadata(inode, PAGE_CACHE_SIZE); + mutex_unlock(&inode->i_mutex); if (ret) goto out; -- cgit v1.2.3 From 7041ee97281c30a78658904140c7bd9373a36142 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 9 Dec 2011 13:26:22 -0500 Subject: Btrfs: fix leaked space in truncate We were occasionaly leaking space when running xfstest 269. This is because if we failed to start the transaction in the truncate loop we'd just goto out, but we need to break so that the inode is removed from the orphan list and the space is properly freed. Thanks, Signed-off-by: Josef Bacik --- fs/btrfs/inode.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 8938174e6bc..6349c63a4b3 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -6566,8 +6566,9 @@ static int btrfs_truncate(struct inode *inode) /* Just need the 1 for updating the inode */ trans = btrfs_start_transaction(root, 1); if (IS_ERR(trans)) { - err = PTR_ERR(trans); - goto out; + ret = err = PTR_ERR(trans); + trans = NULL; + break; } } -- cgit v1.2.3 From ee4d89f0c4967c624c92516fcc37b41069bfdc23 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Tue, 13 Dec 2011 12:55:58 -0500 Subject: Btrfs: don't panic if orphan item already exists I've been hitting this BUG_ON() in btrfs_orphan_add when running xfstest 269 in a loop. This is because we will add an orphan item, do the truncate, the truncate will fail for whatever reason (*cough*ENOSPC*cough*) and then we're left with an orphan item still in the fs. Then we come back later to do another truncate and it blows up because we already have an orphan item. This is ok so just fix the BUG_ON() to only BUG() if ret is not EEXIST. Thanks, Signed-off-by: Josef Bacik --- fs/btrfs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 6349c63a4b3..b212f391cea 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -2032,7 +2032,7 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode) /* insert an orphan item to track this unlinked/truncated file */ if (insert >= 1) { ret = btrfs_insert_orphan_item(trans, root, btrfs_ino(inode)); - BUG_ON(ret); + BUG_ON(ret && ret != -EEXIST); } /* insert an orphan item to track subvolume contains orphan files */ -- cgit v1.2.3 From e65cbb94e036058128a5dec6398be2fd64cf88ba Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Tue, 13 Dec 2011 16:04:54 -0500 Subject: Btrfs: only set cache_generation if we setup the block group A user reported a problem booting into a new kernel with the old format inodes. He was panicing in cow_file_range while writing out the inode cache. This is because if the block group is not cached we'll just skip writing out the cache, however if it gets dirtied again in the same transaction and it finished caching we'd go ahead and write it out, but since we set cache_generation to the transid we think we've already truncated it and will just carry on, running into cow_file_range and blowing up. We need to make sure we only set cache_generation if we've done the truncate. The user tested this patch and verified that the panic no longer occured. Thanks, Reported-and-Tested-by: Klaus Bitto Signed-off-by: Josef Bacik --- fs/btrfs/extent-tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 4eb4d2748be..8603ee4e3df 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2822,7 +2822,7 @@ out_free: btrfs_release_path(path); out: spin_lock(&block_group->lock); - if (!ret) + if (!ret && dcs == BTRFS_DC_SETUP) block_group->cache_generation = trans->transid; block_group->disk_cache_state = dcs; spin_unlock(&block_group->lock); -- cgit v1.2.3 From d3db728125c4470a2d061ac10fa7395e18237263 Mon Sep 17 00:00:00 2001 From: Ian Campbell Date: Wed, 14 Dec 2011 12:16:08 +0000 Subject: xen: only limit memory map to maximum reservation for domain 0. d312ae878b6a "xen: use maximum reservation to limit amount of usable RAM" clamped the total amount of RAM to the current maximum reservation. This is correct for dom0 but is not correct for guest domains. In order to boot a guest "pre-ballooned" (e.g. with memory=1G but maxmem=2G) in order to allow for future memory expansion the guest must derive max_pfn from the e820 provided by the toolstack and not the current maximum reservation (which can reflect only the current maximum, not the guest lifetime max). The existing algorithm already behaves this correctly if we do not artificially limit the maximum number of pages for the guest case. For a guest booted with maxmem=512, memory=128 this results in: [ 0.000000] BIOS-provided physical RAM map: [ 0.000000] Xen: 0000000000000000 - 00000000000a0000 (usable) [ 0.000000] Xen: 00000000000a0000 - 0000000000100000 (reserved) -[ 0.000000] Xen: 0000000000100000 - 0000000008100000 (usable) -[ 0.000000] Xen: 0000000008100000 - 0000000020800000 (unusable) +[ 0.000000] Xen: 0000000000100000 - 0000000020800000 (usable) ... [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] DMI not present or invalid. [ 0.000000] e820 update range: 0000000000000000 - 0000000000010000 (usable) ==> (reserved) [ 0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (usable) -[ 0.000000] last_pfn = 0x8100 max_arch_pfn = 0x1000000 +[ 0.000000] last_pfn = 0x20800 max_arch_pfn = 0x1000000 [ 0.000000] initial memory mapped : 0 - 027ff000 [ 0.000000] Base memory trampoline at [c009f000] 9f000 size 4096 -[ 0.000000] init_memory_mapping: 0000000000000000-0000000008100000 -[ 0.000000] 0000000000 - 0008100000 page 4k -[ 0.000000] kernel direct mapping tables up to 8100000 @ 27bb000-27ff000 +[ 0.000000] init_memory_mapping: 0000000000000000-0000000020800000 +[ 0.000000] 0000000000 - 0020800000 page 4k +[ 0.000000] kernel direct mapping tables up to 20800000 @ 26f8000-27ff000 [ 0.000000] xen: setting RW the range 27e8000 - 27ff000 [ 0.000000] 0MB HIGHMEM available. -[ 0.000000] 129MB LOWMEM available. -[ 0.000000] mapped low ram: 0 - 08100000 -[ 0.000000] low ram: 0 - 08100000 +[ 0.000000] 520MB LOWMEM available. +[ 0.000000] mapped low ram: 0 - 20800000 +[ 0.000000] low ram: 0 - 20800000 With this change "xl mem-set 512M" will successfully increase the guest RAM (by reducing the balloon). There is no change for dom0. Reported-and-Tested-by: George Shuklin Signed-off-by: Ian Campbell Cc: stable@kernel.org Reviewed-by: David Vrabel Signed-off-by: Konrad Rzeszutek Wilk --- arch/x86/xen/setup.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 38d0af4fefe..a54ff1aab6e 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -173,9 +173,21 @@ static unsigned long __init xen_get_max_pages(void) domid_t domid = DOMID_SELF; int ret; - ret = HYPERVISOR_memory_op(XENMEM_maximum_reservation, &domid); - if (ret > 0) - max_pages = ret; + /* + * For the initial domain we use the maximum reservation as + * the maximum page. + * + * For guest domains the current maximum reservation reflects + * the current maximum rather than the static maximum. In this + * case the e820 map provided to us will cover the static + * maximum region. + */ + if (xen_initial_domain()) { + ret = HYPERVISOR_memory_op(XENMEM_maximum_reservation, &domid); + if (ret > 0) + max_pages = ret; + } + return min(max_pages, MAX_DOMAIN_PAGES); } -- cgit v1.2.3 From 63a741757d15320a25ebf5778f8651cce2ed0611 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Thu, 15 Dec 2011 11:28:46 -0500 Subject: xen/swiotlb: Use page alignment for early buffer allocation. This fixes an odd bug found on a Dell PowerEdge 1850/0RC130 (BIOS A05 01/09/2006) where all of the modules doing pci_set_dma_mask would fail with: ata_piix 0000:00:1f.1: enabling device (0005 -> 0007) ata_piix 0000:00:1f.1: can't derive routing for PCI INT A ata_piix 0000:00:1f.1: BMDMA: failed to set dma mask, falling back to PIO The issue was the Xen-SWIOTLB was allocated such as that the end of buffer was stradling a page (and also above 4GB). The fix was spotted by Kalev Leonid which was to piggyback on git commit e79f86b2ef9c0a8c47225217c1018b7d3d90101c "swiotlb: Use page alignment for early buffer allocation" which: We could call free_bootmem_late() if swiotlb is not used, and it will shrink to page alignment. So alloc them with page alignment at first, to avoid lose two pages And doing that fixes the outstanding issue. CC: stable@kernel.org Suggested-by: "Kalev, Leonid" Reported-and-Tested-by: "Taylor, Neal E" Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/swiotlb-xen.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 8e964b91c44..284798aaf8b 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -166,7 +166,7 @@ retry: /* * Get IO TLB memory from any location. */ - xen_io_tlb_start = alloc_bootmem(bytes); + xen_io_tlb_start = alloc_bootmem_pages(PAGE_ALIGN(bytes)); if (!xen_io_tlb_start) { m = "Cannot allocate Xen-SWIOTLB buffer!\n"; goto error; @@ -179,7 +179,7 @@ retry: bytes, xen_io_tlb_nslabs); if (rc) { - free_bootmem(__pa(xen_io_tlb_start), bytes); + free_bootmem(__pa(xen_io_tlb_start), PAGE_ALIGN(bytes)); m = "Failed to get contiguous memory for DMA from Xen!\n"\ "You either: don't have the permissions, do not have"\ " enough free memory under 4GB, or the hypervisor memory"\ -- cgit v1.2.3 From 87b9b0e0d50db3282fb1eb702307ccfca8775744 Mon Sep 17 00:00:00 2001 From: Ashish Jangam Date: Thu, 15 Dec 2011 14:55:46 +0530 Subject: gpio: Fix DA9052 GPIO build errors. This patch is functionally tested on Samsung SMDKV6410. Reported-by: Stephen Rothwell Signed-off-by: David Dajun Chen Signed-off-by: Ashish Jangam [grant.likely: don't create an unnecessary header file] Signed-off-by: Grant Likely --- drivers/gpio/gpio-da9052.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-) diff --git a/drivers/gpio/gpio-da9052.c b/drivers/gpio/gpio-da9052.c index 038f5eb8b13..f8ce29ef9f8 100644 --- a/drivers/gpio/gpio-da9052.c +++ b/drivers/gpio/gpio-da9052.c @@ -22,7 +22,6 @@ #include #include #include -#include #define DA9052_INPUT 1 #define DA9052_OUTPUT_OPENDRAIN 2 @@ -43,6 +42,9 @@ #define DA9052_GPIO_MASK_UPPER_NIBBLE 0xF0 #define DA9052_GPIO_MASK_LOWER_NIBBLE 0x0F #define DA9052_GPIO_NIBBLE_SHIFT 4 +#define DA9052_IRQ_GPI0 16 +#define DA9052_GPIO_ODD_SHIFT 7 +#define DA9052_GPIO_EVEN_SHIFT 3 struct da9052_gpio { struct da9052 *da9052; @@ -104,33 +106,26 @@ static int da9052_gpio_get(struct gpio_chip *gc, unsigned offset) static void da9052_gpio_set(struct gpio_chip *gc, unsigned offset, int value) { struct da9052_gpio *gpio = to_da9052_gpio(gc); - unsigned char register_value = 0; int ret; if (da9052_gpio_port_odd(offset)) { - if (value) { - register_value = DA9052_GPIO_ODD_PORT_MODE; ret = da9052_reg_update(gpio->da9052, (offset >> 1) + DA9052_GPIO_0_1_REG, DA9052_GPIO_ODD_PORT_MODE, - register_value); + value << DA9052_GPIO_ODD_SHIFT); if (ret != 0) dev_err(gpio->da9052->dev, "Failed to updated gpio odd reg,%d", ret); - } } else { - if (value) { - register_value = DA9052_GPIO_EVEN_PORT_MODE; ret = da9052_reg_update(gpio->da9052, (offset >> 1) + DA9052_GPIO_0_1_REG, DA9052_GPIO_EVEN_PORT_MODE, - register_value); + value << DA9052_GPIO_EVEN_SHIFT); if (ret != 0) dev_err(gpio->da9052->dev, "Failed to updated gpio even reg,%d", ret); - } } } @@ -201,9 +196,9 @@ static struct gpio_chip reference_gp __devinitdata = { .direction_input = da9052_gpio_direction_input, .direction_output = da9052_gpio_direction_output, .to_irq = da9052_gpio_to_irq, - .can_sleep = 1; - .ngpio = 16; - .base = -1; + .can_sleep = 1, + .ngpio = 16, + .base = -1, }; static int __devinit da9052_gpio_probe(struct platform_device *pdev) -- cgit v1.2.3 From e755d9ab387c4c2401dce5b6f435432a829f41cb Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Thu, 15 Dec 2011 13:36:29 -0500 Subject: Btrfs: deal with NULL srv_rsv in the delalloc inode reservation code btrfs_update_inode is sometimes called with a null reservation. Signed-off-by: Chris Mason --- fs/btrfs/delayed-inode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c index 6a1a6800776..c7ddf8a01c5 100644 --- a/fs/btrfs/delayed-inode.c +++ b/fs/btrfs/delayed-inode.c @@ -640,8 +640,8 @@ static int btrfs_delayed_inode_reserve_metadata( * Now if src_rsv == delalloc_block_rsv we'll let it just steal since * we're accounted for. */ - if (!trans->bytes_reserved && - src_rsv != &root->fs_info->delalloc_block_rsv) { + if (!src_rsv || (!trans->bytes_reserved && + src_rsv != &root->fs_info->delalloc_block_rsv)) { ret = btrfs_block_rsv_add_noflush(root, dst_rsv, num_bytes); /* * Since we're under a transaction reserve_metadata_bytes could -- cgit v1.2.3 From 4eabc941259f9d8c8fb71746d3f30c87e1d9e49b Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 15 Dec 2011 20:03:04 +0100 Subject: block: don't kick empty queue in blk_drain_queue() While probing, fd sets up queue, probes hardware and tears down the queue if probing fails. In the process, blk_drain_queue() kicks the queue which failed to finish initialization and fd is unhappy about that. floppy0: no floppy controllers found ------------[ cut here ]------------ WARNING: at drivers/block/floppy.c:2929 do_fd_request+0xbf/0xd0() Hardware name: To Be Filled By O.E.M. VFS: do_fd_request called on non-open device Modules linked in: Pid: 1, comm: swapper Not tainted 3.2.0-rc4-00077-g5983fe2 #2 Call Trace: [] warn_slowpath_common+0x7a/0xb0 [] warn_slowpath_fmt+0x41/0x50 [] do_fd_request+0xbf/0xd0 [] blk_drain_queue+0x65/0x80 [] blk_cleanup_queue+0xe3/0x1a0 [] floppy_init+0xdeb/0xe28 [] ? daring+0x6b/0x6b [] do_one_initcall+0x3f/0x170 [] kernel_init+0x9d/0x11e [] ? schedule_tail+0x22/0xa0 [] kernel_thread_helper+0x4/0x10 [] ? start_kernel+0x2be/0x2be [] ? gs_change+0xb/0xb Avoid it by making blk_drain_queue() kick queue iff dispatch queue has something on it. Signed-off-by: Tejun Heo Reported-by: Ralf Hildebrandt Reported-by: Wu Fengguang Tested-by: Sergei Trofimovich Signed-off-by: Jens Axboe --- block/blk-core.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index 20d69f6beb6..15de223c7f9 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -366,7 +366,14 @@ void blk_drain_queue(struct request_queue *q, bool drain_all) if (drain_all) blk_throtl_drain(q); - __blk_run_queue(q); + /* + * This function might be called on a queue which failed + * driver init after queue creation. Some drivers + * (e.g. fd) get unhappy in such cases. Kick queue iff + * dispatch queue has something on it. + */ + if (!list_empty(&q->queue_head)) + __blk_run_queue(q); if (drain_all) nr_rqs = q->rq.count[0] + q->rq.count[1]; -- cgit v1.2.3 From 9f57bd4d6dc69a4e3bf43044fa00fcd24dd363e3 Mon Sep 17 00:00:00 2001 From: Eugene Surovegin Date: Thu, 15 Dec 2011 11:25:59 -0800 Subject: percpu: fix per_cpu_ptr_to_phys() handling of non-page-aligned addresses per_cpu_ptr_to_phys() incorrectly rounds up its result for non-kmalloc case to the page boundary, which is bogus for any non-page-aligned address. This affects the only in-tree user of this function - sysfs handler for per-cpu 'crash_notes' physical address. The trouble is that the crash_notes per-cpu variable is not page-aligned: crash_notes = 0xc08e8ed4 PER-CPU OFFSET VALUES: CPU 0: 3711f000 CPU 1: 37129000 CPU 2: 37133000 CPU 3: 3713d000 So, the per-cpu addresses are: crash_notes on CPU 0: f7a07ed4 => phys 36b57ed4 crash_notes on CPU 1: f7a11ed4 => phys 36b4ded4 crash_notes on CPU 2: f7a1bed4 => phys 36b43ed4 crash_notes on CPU 3: f7a25ed4 => phys 36b39ed4 However, /sys/devices/system/cpu/cpu*/crash_notes says: /sys/devices/system/cpu/cpu0/crash_notes: 36b57000 /sys/devices/system/cpu/cpu1/crash_notes: 36b4d000 /sys/devices/system/cpu/cpu2/crash_notes: 36b43000 /sys/devices/system/cpu/cpu3/crash_notes: 36b39000 As you can see, all values are rounded down to a page boundary. Consequently, this is where kexec sets up the NOTE segments, and thus where the secondary kernel is looking for them. However, when the first kernel crashes, it saves the notes to the unaligned addresses, where they are not found. Fix it by adding offset_in_page() to the translated page address. -tj: Combined Eugene's and Petr's commit messages. Signed-off-by: Eugene Surovegin Signed-off-by: Tejun Heo Reported-by: Petr Tesarik Cc: stable@kernel.org --- mm/percpu.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/mm/percpu.c b/mm/percpu.c index 3bb810a7200..716eb4acf2f 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1023,9 +1023,11 @@ phys_addr_t per_cpu_ptr_to_phys(void *addr) if (!is_vmalloc_addr(addr)) return __pa(addr); else - return page_to_phys(vmalloc_to_page(addr)); + return page_to_phys(vmalloc_to_page(addr)) + + offset_in_page(addr); } else - return page_to_phys(pcpu_addr_to_page(addr)); + return page_to_phys(pcpu_addr_to_page(addr)) + + offset_in_page(addr); } /** -- cgit v1.2.3 From d85c8a6f1bc083279215ff6e79b7c292bf3ec905 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Thu, 15 Dec 2011 15:38:41 -0500 Subject: Btrfs: unplug every once and a while The btrfs io submission threads can build up massive plug lists. This keeps things more reasonable so we don't hand over huge dumps of IO at once. Signed-off-by: Chris Mason --- fs/btrfs/volumes.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 91ea57a1474..f4b839fd3c9 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -295,6 +295,12 @@ loop_lock: btrfs_requeue_work(&device->work); goto done; } + /* unplug every 64 requests just for good measure */ + if (batch_run % 64 == 0) { + blk_finish_plug(&plug); + blk_start_plug(&plug); + sync_pending = 0; + } } cond_resched(); -- cgit v1.2.3 From ddf5a25c5fdd4cc276edf451871c38002eec0f95 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Thu, 15 Dec 2011 21:47:56 +0100 Subject: ARM: unwinder: fix bisection to find origin in .idx section MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The bisection implemented in unwind_find_origin() stopped to early. If there is only a single entry left to check the original code just took the end point as origin which might be wrong. This was introduced in commit de66a979012d ("ARM: 7187/1: fix unwinding for XIP kernels"). Reported-and-tested-by: Nick Bowler Signed-off-by: Uwe Kleine-König Signed-off-by: Linus Torvalds --- arch/arm/kernel/unwind.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/kernel/unwind.c b/arch/arm/kernel/unwind.c index 3f03fe0c326..00df012c467 100644 --- a/arch/arm/kernel/unwind.c +++ b/arch/arm/kernel/unwind.c @@ -160,12 +160,12 @@ static const struct unwind_idx *unwind_find_origin( const struct unwind_idx *start, const struct unwind_idx *stop) { pr_debug("%s(%p, %p)\n", __func__, start, stop); - while (start < stop - 1) { + while (start < stop) { const struct unwind_idx *mid = start + ((stop - start) >> 1); if (mid->addr_offset >= 0x40000000) /* negative offset */ - start = mid; + start = mid + 1; else /* positive offset */ stop = mid; -- cgit v1.2.3 From 6c52961743f38747401b47127b82159ab6d8a7a4 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 15 Dec 2011 18:38:10 -0500 Subject: NFS: Fix a regression in nfs_file_llseek() After commit 06222e491e663dac939f04b125c9dc52126a75c4 (fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's that define their own llseek) the behaviour of llseek() was changed so that it always revalidates the file size. The bug appears to be due to a logic error in the afore-mentioned commit, which always evaluates to 'true'. Reported-by: Roel Kluin Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org [>=3.1] --- fs/nfs/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nfs/file.c b/fs/nfs/file.c index eca56d4b39c..606ef0f20ae 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -147,7 +147,7 @@ static loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin) * origin == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate * the cached file length */ - if (origin != SEEK_SET || origin != SEEK_CUR) { + if (origin != SEEK_SET && origin != SEEK_CUR) { struct inode *inode = filp->f_mapping->host; int retval = nfs_revalidate_file_size(inode, filp); -- cgit v1.2.3 From ab2789213d224202237292d78aaa0c386c7b28b2 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 15 Dec 2011 11:47:00 -0800 Subject: sched: Fix select_idle_sibling() regression in selecting an idle SMT sibling Mike Galbraith reported that this recent commit: commit 4dcfe1025b513c2c1da5bf5586adb0e80148f612 Author: Peter Zijlstra Date: Thu Nov 10 13:01:10 2011 +0100 sched: Avoid SMT siblings in select_idle_sibling() if possible stopped selecting an idle SMT sibling when there are no idle cores in a single socket system. Intent of the select_idle_sibling() was to fallback to an idle SMT sibling, if it fails to identify an idle core. But this fallback was not happening on systems where all the scheduler domains had `SD_SHARE_PKG_RESOURCES' flag set. Fix it. Slightly bigger patch of cleaning all these goto's etc is queued up for the next release. Reported-by: Mike Galbraith Reported-by: Alex Shi Signed-off-by: Peter Zijlstra Signed-off-by: Suresh Siddha Link: http://lkml.kernel.org/r/1323978421.1984.244.camel@sbsiddha-desk.sc.intel.com Signed-off-by: Ingo Molnar --- kernel/sched_fair.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index a78ed2736ba..8a39fa3e3c6 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -2352,13 +2352,11 @@ again: if (!smt && (sd->flags & SD_SHARE_CPUPOWER)) continue; - if (!(sd->flags & SD_SHARE_PKG_RESOURCES)) { - if (!smt) { - smt = 1; - goto again; - } + if (smt && !(sd->flags & SD_SHARE_CPUPOWER)) + break; + + if (!(sd->flags & SD_SHARE_PKG_RESOURCES)) break; - } sg = sd->groups; do { @@ -2378,6 +2376,10 @@ next: sg = sg->next; } while (sg != sd->groups); } + if (!smt) { + smt = 1; + goto again; + } done: rcu_read_unlock(); -- cgit v1.2.3 From 0999bbe08196cd9459683204974fda4d62a7d1b3 Mon Sep 17 00:00:00 2001 From: Adam Jackson Date: Mon, 28 Nov 2011 12:22:56 -0500 Subject: drm/i915: no-lvds quirk for ASUS AT5NM10T-I https://bugzilla.redhat.com/show_bug.cgi?id=750006 Signed-off-by: Adam Jackson Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_lvds.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 42f165a520d..e44191132ac 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -715,6 +715,14 @@ static const struct dmi_system_id intel_no_lvds[] = { DMI_MATCH(DMI_PRODUCT_NAME, "EB1007"), }, }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Asus AT5NM10T-I", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), + DMI_MATCH(DMI_BOARD_NAME, "AT5NM10T-I"), + }, + }, { } /* terminating entry */ }; -- cgit v1.2.3 From 3573c4103f7a486838bb6b5b8353788103f91802 Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Fri, 14 Oct 2011 18:16:22 -0300 Subject: drm/i915: set the right SDVO transcoder for CPT v2: add a CPT-specific macro, make code cleaner v3: fix commit message Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41272 Cc: stable@kernel.org Signed-off-by: Paulo Zanoni Reviewed-by: Chris Wilson Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_reg.h | 8 ++++---- drivers/gpu/drm/i915/intel_sdvo.c | 8 ++++++-- 2 files changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 6ef68c74189..a26d5b0a369 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3303,10 +3303,10 @@ /* or SDVOB */ #define HDMIB 0xe1140 #define PORT_ENABLE (1 << 31) -#define TRANSCODER_A (0) -#define TRANSCODER_B (1 << 30) -#define TRANSCODER(pipe) ((pipe) << 30) -#define TRANSCODER_MASK (1 << 30) +#define TRANSCODER(pipe) ((pipe) << 30) +#define TRANSCODER_CPT(pipe) ((pipe) << 29) +#define TRANSCODER_MASK (1 << 30) +#define TRANSCODER_MASK_CPT (3 << 29) #define COLOR_FORMAT_8bpc (0) #define COLOR_FORMAT_12bpc (3 << 26) #define SDVOB_HOTPLUG_ENABLE (1 << 23) diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 3003fb25aef..e308d674c66 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -1086,8 +1086,12 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder, } sdvox |= (9 << 19) | SDVO_BORDER_ENABLE; } - if (intel_crtc->pipe == 1) - sdvox |= SDVO_PIPE_B_SELECT; + + if (INTEL_PCH_TYPE(dev) >= PCH_CPT) + sdvox |= TRANSCODER_CPT(intel_crtc->pipe); + else + sdvox |= TRANSCODER(intel_crtc->pipe); + if (intel_sdvo->has_hdmi_audio) sdvox |= SDVO_AUDIO_ENABLE; -- cgit v1.2.3 From 03d00ac53f9bcde06ff7e33d6676083c18d569a4 Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Fri, 14 Oct 2011 18:17:41 -0300 Subject: drm/i915: add PCH info to i915_capabilities Signed-off-by: Chris Wilson Signed-off-by: Paulo Zanoni Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_debugfs.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index d09a6e02dc9..004b048c519 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -62,6 +62,7 @@ static int i915_capabilities(struct seq_file *m, void *data) const struct intel_device_info *info = INTEL_INFO(dev); seq_printf(m, "gen: %d\n", info->gen); + seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev)); #define B(x) seq_printf(m, #x ": %s\n", yesno(info->x)) B(is_mobile); B(is_i85x); -- cgit v1.2.3 From 4ed0b577457eb6aeb7cdc7e7316576e63d15abb2 Mon Sep 17 00:00:00 2001 From: Eugeni Dodonov Date: Thu, 10 Nov 2011 13:55:15 -0200 Subject: drm/i915: prevent division by zero when asking for chipset power This prevents an in-kernel division by zero which happens when we are asking for i915_chipset_val too quickly, or within a race condition between the power monitoring thread and userspace accesses via debugfs. The issue can be reproduced easily via the following command: while ``; do cat /sys/kernel/debug/dri/0/i915_emon_status; done This is particularly dangerous because it can be triggered by a non-privileged user by just reading the debugfs entry. This issue was also found independently by Konstantin Belousov , who proposed a similar patch. Reported-by: Konstantin Belousov Acked-by: Jesse Barnes Acked-by: Keith Packard Reviewed-by: Chris Wilson Cc: Signed-off-by: Eugeni Dodonov Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_dma.c | 10 ++++++++++ drivers/gpu/drm/i915/i915_drv.h | 1 + 2 files changed, 11 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index a9533c54c93..a9ae374861e 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1454,6 +1454,14 @@ unsigned long i915_chipset_val(struct drm_i915_private *dev_priv) diff1 = now - dev_priv->last_time1; + /* Prevent division-by-zero if we are asking too fast. + * Also, we don't get interesting results if we are polling + * faster than once in 10ms, so just return the saved value + * in such cases. + */ + if (diff1 <= 10) + return dev_priv->chipset_power; + count1 = I915_READ(DMIEC); count2 = I915_READ(DDREC); count3 = I915_READ(CSIEC); @@ -1484,6 +1492,8 @@ unsigned long i915_chipset_val(struct drm_i915_private *dev_priv) dev_priv->last_count1 = total_count; dev_priv->last_time1 = now; + dev_priv->chipset_power = ret; + return ret; } diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 8ba88cfc36d..39a72f642b3 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -713,6 +713,7 @@ typedef struct drm_i915_private { u64 last_count1; unsigned long last_time1; + unsigned long chipset_power; u64 last_count2; struct timespec last_time2; unsigned long gfx_power; -- cgit v1.2.3 From 522200858093a6f31af9830672109f6d9807dd1e Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 20 Jun 2011 14:45:50 +0100 Subject: drm/i915/sdvo: Include LVDS panels for the IS_DIGITAL check We were checking whether the supplied edid matched the connector it was read from. We do this in case a DDC read returns an EDID for another device on a multifunction or otherwise interesting card. However, we failed to include LVDS as a digital device and so rejecting an otherwise valid EDID. Fixes the detection of the secondary SDVO LVDS panel on the Libretto W105. Signed-off-by: Chris Wilson Reviewed-by: Adam Jackson Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=39216 Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_sdvo.c | 28 ++++++++++++++++++++-------- 1 file changed, 20 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index e308d674c66..f7b9268df26 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -50,6 +50,7 @@ #define IS_TMDS(c) (c->output_flag & SDVO_TMDS_MASK) #define IS_LVDS(c) (c->output_flag & SDVO_LVDS_MASK) #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK)) +#define IS_DIGITAL(c) (c->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK)) static const char *tv_format_names[] = { @@ -1318,6 +1319,18 @@ intel_sdvo_tmds_sink_detect(struct drm_connector *connector) return status; } +static bool +intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo, + struct edid *edid) +{ + bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL); + bool connector_is_digital = !!IS_DIGITAL(sdvo); + + DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n", + connector_is_digital, monitor_is_digital); + return connector_is_digital == monitor_is_digital; +} + static enum drm_connector_status intel_sdvo_detect(struct drm_connector *connector, bool force) { @@ -1362,10 +1375,12 @@ intel_sdvo_detect(struct drm_connector *connector, bool force) if (edid == NULL) edid = intel_sdvo_get_analog_edid(connector); if (edid != NULL) { - if (edid->input & DRM_EDID_INPUT_DIGITAL) - ret = connector_status_disconnected; - else + if (intel_sdvo_connector_matches_edid(intel_sdvo_connector, + edid)) ret = connector_status_connected; + else + ret = connector_status_disconnected; + connector->display_info.raw_edid = NULL; kfree(edid); } else @@ -1406,11 +1421,8 @@ static void intel_sdvo_get_ddc_modes(struct drm_connector *connector) edid = intel_sdvo_get_analog_edid(connector); if (edid != NULL) { - struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector); - bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL); - bool connector_is_digital = !!IS_TMDS(intel_sdvo_connector); - - if (connector_is_digital == monitor_is_digital) { + if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector), + edid)) { drm_mode_connector_update_edid_property(connector, edid); drm_add_edid_modes(connector, edid); } -- cgit v1.2.3 From 8bc1f85c02a20a59956b00b3acea12c04dce9ae8 Mon Sep 17 00:00:00 2001 From: Eugeni Dodonov Date: Wed, 23 Nov 2011 16:42:14 -0200 Subject: iommu: Export intel_iommu_enabled to signal when iommu is in use In i915 driver, we do not enable either rc6 or semaphores on SNB when dmar is enabled. The new 'intel_iommu_enabled' variable signals when the iommu code is in operation. Cc: Ted Phelps Cc: Peter Cc: Lukas Hejtmanek Cc: Andrew Lutomirski CC: Daniel Vetter Cc: Eugeni Dodonov Signed-off-by: Keith Packard --- drivers/iommu/intel-iommu.c | 5 +++++ include/linux/dma_remapping.h | 2 ++ 2 files changed, 7 insertions(+) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index c0c7820d4c4..8dc19b8f5d4 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -405,6 +405,9 @@ int dmar_disabled = 0; int dmar_disabled = 1; #endif /*CONFIG_INTEL_IOMMU_DEFAULT_ON*/ +int intel_iommu_enabled = 0; +EXPORT_SYMBOL_GPL(intel_iommu_enabled); + static int dmar_map_gfx = 1; static int dmar_forcedac; static int intel_iommu_strict; @@ -3647,6 +3650,8 @@ int __init intel_iommu_init(void) bus_register_notifier(&pci_bus_type, &device_nb); + intel_iommu_enabled = 1; + return 0; } diff --git a/include/linux/dma_remapping.h b/include/linux/dma_remapping.h index ef90cbd8e17..57c9a8ae4f2 100644 --- a/include/linux/dma_remapping.h +++ b/include/linux/dma_remapping.h @@ -31,6 +31,7 @@ extern void free_dmar_iommu(struct intel_iommu *iommu); extern int iommu_calculate_agaw(struct intel_iommu *iommu); extern int iommu_calculate_max_sagaw(struct intel_iommu *iommu); extern int dmar_disabled; +extern int intel_iommu_enabled; #else static inline int iommu_calculate_agaw(struct intel_iommu *iommu) { @@ -44,6 +45,7 @@ static inline void free_dmar_iommu(struct intel_iommu *iommu) { } #define dmar_disabled (1) +#define intel_iommu_enabled (0) #endif -- cgit v1.2.3 From c0f372b3746d4ede07b2ace2beabd38d9c045b25 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Wed, 16 Nov 2011 22:24:52 -0800 Subject: drm/i915: By default, enable RC6 on IVB and SNB when reasonable RC6 should always work on IVB, and should work on SNB whenever IO remapping is disabled. RC6 never works on Ironlake. Make the default value for the parameter follow these guidelines. Setting the value to either 0 or 1 will force the specified behavior. Signed-off-by: Keith Packard Reviewed-by: Kenneth Graunke Reviewed-by: Eugeni Dodonov Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38567 Cc: Ted Phelps Cc: Peter Cc: Lukas Hejtmanek Cc: Andrew Lutomirski --- drivers/gpu/drm/i915/i915_drv.c | 4 ++-- drivers/gpu/drm/i915/i915_drv.h | 2 +- drivers/gpu/drm/i915/intel_display.c | 33 ++++++++++++++++++++++++++++++--- 3 files changed, 33 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 28836fe7221..47a42eb6cc4 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -63,10 +63,10 @@ module_param_named(semaphores, i915_semaphores, int, 0600); MODULE_PARM_DESC(semaphores, "Use semaphores for inter-ring sync (default: false)"); -unsigned int i915_enable_rc6 __read_mostly = 0; +int i915_enable_rc6 __read_mostly = -1; module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0600); MODULE_PARM_DESC(i915_enable_rc6, - "Enable power-saving render C-state 6 (default: true)"); + "Enable power-saving render C-state 6 (default: -1 (use per-chip default)"); int i915_enable_fbc __read_mostly = -1; module_param_named(i915_enable_fbc, i915_enable_fbc, int, 0600); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 39a72f642b3..6bcafb5bf7f 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1006,7 +1006,7 @@ extern unsigned int i915_semaphores __read_mostly; extern unsigned int i915_lvds_downclock __read_mostly; extern int i915_panel_use_ssc __read_mostly; extern int i915_vbt_sdvo_panel_type __read_mostly; -extern unsigned int i915_enable_rc6 __read_mostly; +extern int i915_enable_rc6 __read_mostly; extern int i915_enable_fbc __read_mostly; extern bool i915_enable_hangcheck __read_mostly; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 633c6936538..d544de9e663 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -38,8 +38,8 @@ #include "i915_drv.h" #include "i915_trace.h" #include "drm_dp_helper.h" - #include "drm_crtc_helper.h" +#include #define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) @@ -7887,6 +7887,33 @@ void intel_init_emon(struct drm_device *dev) dev_priv->corr = (lcfuse & LCFUSE_HIV_MASK); } +static bool intel_enable_rc6(struct drm_device *dev) +{ + /* + * Respect the kernel parameter if it is set + */ + if (i915_enable_rc6 >= 0) + return i915_enable_rc6; + + /* + * Disable RC6 on Ironlake + */ + if (INTEL_INFO(dev)->gen == 5) + return 0; + + /* + * Enable rc6 on Sandybridge if DMA remapping is disabled + */ + if (INTEL_INFO(dev)->gen == 6) { + DRM_DEBUG_DRIVER("Sandybridge: intel_iommu_enabled %s -- RC6 %sabled\n", + intel_iommu_enabled ? "true" : "false", + !intel_iommu_enabled ? "en" : "dis"); + return !intel_iommu_enabled; + } + DRM_DEBUG_DRIVER("RC6 enabled\n"); + return 1; +} + void gen6_enable_rps(struct drm_i915_private *dev_priv) { u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP); @@ -7923,7 +7950,7 @@ void gen6_enable_rps(struct drm_i915_private *dev_priv) I915_WRITE(GEN6_RC6p_THRESHOLD, 100000); I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */ - if (i915_enable_rc6) + if (intel_enable_rc6(dev_priv->dev)) rc6_mask = GEN6_RC_CTL_RC6p_ENABLE | GEN6_RC_CTL_RC6_ENABLE; @@ -8372,7 +8399,7 @@ void ironlake_enable_rc6(struct drm_device *dev) /* rc6 disabled by default due to repeated reports of hanging during * boot and resume. */ - if (!i915_enable_rc6) + if (!intel_enable_rc6(dev)) return; mutex_lock(&dev->struct_mutex); -- cgit v1.2.3 From 7317c75e66fce0c9f82fbe6f72f7e5256b315422 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Mon, 29 Aug 2011 09:45:28 -0700 Subject: drm/i915: don't set unpin_work if vblank_get fails This fixes a race where we may try to finish a page flip and decrement the refcount even if our vblank_get failed and we ended up with a spurious flip pending interrupt. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=34211. Signed-off-by: Jesse Barnes Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_display.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index d544de9e663..91b5f8707a6 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7189,11 +7189,16 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, work->old_fb_obj = intel_fb->obj; INIT_WORK(&work->work, intel_unpin_work_fn); + ret = drm_vblank_get(dev, intel_crtc->pipe); + if (ret) + goto free_work; + /* We borrow the event spin lock for protecting unpin_work */ spin_lock_irqsave(&dev->event_lock, flags); if (intel_crtc->unpin_work) { spin_unlock_irqrestore(&dev->event_lock, flags); kfree(work); + drm_vblank_put(dev, intel_crtc->pipe); DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); return -EBUSY; @@ -7212,10 +7217,6 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, crtc->fb = fb; - ret = drm_vblank_get(dev, intel_crtc->pipe); - if (ret) - goto cleanup_objs; - work->pending_flip_obj = obj; work->enable_stall_check = true; @@ -7238,7 +7239,6 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, cleanup_pending: atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); -cleanup_objs: drm_gem_object_unreference(&work->old_fb_obj->base); drm_gem_object_unreference(&obj->base); mutex_unlock(&dev->struct_mutex); @@ -7247,6 +7247,8 @@ cleanup_objs: intel_crtc->unpin_work = NULL; spin_unlock_irqrestore(&dev->event_lock, flags); + drm_vblank_put(dev, intel_crtc->pipe); +free_work: kfree(work); return ret; -- cgit v1.2.3 From f45b55575cedb7efa782e43f1ea74338456d0381 Mon Sep 17 00:00:00 2001 From: Eugeni Dodonov Date: Fri, 9 Dec 2011 17:16:37 -0800 Subject: drm/i915: enable semaphores on per-device defaults This adds a default setting for semaphores parameter, and enables semaphores by default on IVB. For now, as semaphores interaction with VTd causes random issues on SNB, we do not enable them by default. But they can still be enabled via the semaphores=1 kernel parameter. v2: enables semaphores on SNB when IO remapping is disabled, with base on Keith Packard patch. CC: Daniel Vetter CC: Ben Widawsky CC: Keith Packard CC: Jesse Barnes CC: Chris Wilson Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42696 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=40564 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41353 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38862 Reviewed-by: Chris Wilson Reviewed-by: Daniel Vetter Signed-off-by: Eugeni Dodonov Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_drv.c | 4 ++-- drivers/gpu/drm/i915/i915_drv.h | 2 +- drivers/gpu/drm/i915/i915_gem_execbuffer.c | 19 ++++++++++++++++++- 3 files changed, 21 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 47a42eb6cc4..a1103fc6597 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -58,10 +58,10 @@ module_param_named(powersave, i915_powersave, int, 0600); MODULE_PARM_DESC(powersave, "Enable powersavings, fbc, downclocking, etc. (default: true)"); -unsigned int i915_semaphores __read_mostly = 0; +int i915_semaphores __read_mostly = -1; module_param_named(semaphores, i915_semaphores, int, 0600); MODULE_PARM_DESC(semaphores, - "Use semaphores for inter-ring sync (default: false)"); + "Use semaphores for inter-ring sync (default: -1 (use per-chip defaults))"); int i915_enable_rc6 __read_mostly = -1; module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0600); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 6bcafb5bf7f..554bef7a3b9 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1002,7 +1002,7 @@ extern int i915_max_ioctl; extern unsigned int i915_fbpercrtc __always_unused; extern int i915_panel_ignore_lid __read_mostly; extern unsigned int i915_powersave __read_mostly; -extern unsigned int i915_semaphores __read_mostly; +extern int i915_semaphores __read_mostly; extern unsigned int i915_lvds_downclock __read_mostly; extern int i915_panel_use_ssc __read_mostly; extern int i915_vbt_sdvo_panel_type __read_mostly; diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 3693e83a97f..c681dc149d2 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -32,6 +32,7 @@ #include "i915_drv.h" #include "i915_trace.h" #include "intel_drv.h" +#include struct change_domains { uint32_t invalidate_domains; @@ -746,6 +747,22 @@ i915_gem_execbuffer_flush(struct drm_device *dev, return 0; } +static bool +intel_enable_semaphores(struct drm_device *dev) +{ + if (INTEL_INFO(dev)->gen < 6) + return 0; + + if (i915_semaphores >= 0) + return i915_semaphores; + + /* Enable semaphores on SNB when IO remapping is off */ + if (INTEL_INFO(dev)->gen == 6) + return !intel_iommu_enabled; + + return 1; +} + static int i915_gem_execbuffer_sync_rings(struct drm_i915_gem_object *obj, struct intel_ring_buffer *to) @@ -758,7 +775,7 @@ i915_gem_execbuffer_sync_rings(struct drm_i915_gem_object *obj, return 0; /* XXX gpu semaphores are implicated in various hard hangs on SNB */ - if (INTEL_INFO(obj->base.dev)->gen < 6 || !i915_semaphores) + if (!intel_enable_semaphores(obj->base.dev)) return i915_gem_object_wait_rendering(obj); idx = intel_ring_sync_index(from, to); -- cgit v1.2.3 From 3b5c78a35cf7511c15e09a9b0ffab290a42d9bcf Mon Sep 17 00:00:00 2001 From: Adam Jackson Date: Tue, 13 Dec 2011 15:41:00 -0800 Subject: drm/i915/dp: Dither down to 6bpc if it makes the mode fit Some active adaptors (VGA usually) only have two lanes at 2.7GHz. That's a maximum pixel clock of 144MHz at 8bpc, but 192MHz at 6bpc. Fixes Asus UX31 panel being black at startup due to no valid modes since dc22ee6fc18ce0f15424e753e8473c306ece95c1. v2: Rebased to current code, resulting in the fix applying to EDP panels as well. Also changed from spatio-temporal to just spatial dithering on pre-ironlake, to be conssitent (and less visual flicker) Signed-off-by: Adam Jackson Signed-off-by: Eric Anholt Tested-by: Eric Anholt Tested-by: Dirk Hohndel Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_display.c | 22 ++++++++++++++++++++-- drivers/gpu/drm/i915/intel_dp.c | 24 ++++++++++++++++++------ drivers/gpu/drm/i915/intel_drv.h | 1 + 3 files changed, 39 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 91b5f8707a6..d809b038ca8 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4670,6 +4670,7 @@ static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) /** * intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send * @crtc: CRTC structure + * @mode: requested mode * * A pipe may be connected to one or more outputs. Based on the depth of the * attached framebuffer, choose a good color depth to use on the pipe. @@ -4681,13 +4682,15 @@ static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) * HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc * Displays may support a restricted set as well, check EDID and clamp as * appropriate. + * DP may want to dither down to 6bpc to fit larger modes * * RETURNS: * Dithering requirement (i.e. false if display bpc and pipe bpc match, * true if they don't match). */ static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc, - unsigned int *pipe_bpp) + unsigned int *pipe_bpp, + struct drm_display_mode *mode) { struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; @@ -4758,6 +4761,11 @@ static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc, } } + if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { + DRM_DEBUG_KMS("Dithering DP to 6bpc\n"); + display_bpc = 6; + } + /* * We could just drive the pipe at the highest bpc all the time and * enable dithering as needed, but that costs bandwidth. So choose @@ -5019,6 +5027,16 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc, pipeconf &= ~PIPECONF_DOUBLE_WIDE; } + /* default to 8bpc */ + pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN); + if (is_dp) { + if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { + pipeconf |= PIPECONF_BPP_6 | + PIPECONF_DITHER_EN | + PIPECONF_DITHER_TYPE_SP; + } + } + dpll |= DPLL_VCO_ENABLE; DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); @@ -5480,7 +5498,7 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc, /* determine panel color depth */ temp = I915_READ(PIPECONF(pipe)); temp &= ~PIPE_BPC_MASK; - dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp); + dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp, mode); switch (pipe_bpp) { case 18: temp |= PIPE_6BPC; diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 294f55788f0..92b041b66e4 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -208,13 +208,15 @@ intel_dp_link_clock(uint8_t link_bw) */ static int -intel_dp_link_required(struct intel_dp *intel_dp, int pixel_clock) +intel_dp_link_required(struct intel_dp *intel_dp, int pixel_clock, int check_bpp) { struct drm_crtc *crtc = intel_dp->base.base.crtc; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int bpp = 24; - if (intel_crtc) + if (check_bpp) + bpp = check_bpp; + else if (intel_crtc) bpp = intel_crtc->bpp; return (pixel_clock * bpp + 9) / 10; @@ -233,6 +235,7 @@ intel_dp_mode_valid(struct drm_connector *connector, struct intel_dp *intel_dp = intel_attached_dp(connector); int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_dp)); int max_lanes = intel_dp_max_lane_count(intel_dp); + int max_rate, mode_rate; if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) { if (mode->hdisplay > intel_dp->panel_fixed_mode->hdisplay) @@ -242,9 +245,17 @@ intel_dp_mode_valid(struct drm_connector *connector, return MODE_PANEL; } - if (intel_dp_link_required(intel_dp, mode->clock) - > intel_dp_max_data_rate(max_link_clock, max_lanes)) - return MODE_CLOCK_HIGH; + mode_rate = intel_dp_link_required(intel_dp, mode->clock, 0); + max_rate = intel_dp_max_data_rate(max_link_clock, max_lanes); + + if (mode_rate > max_rate) { + mode_rate = intel_dp_link_required(intel_dp, + mode->clock, 18); + if (mode_rate > max_rate) + return MODE_CLOCK_HIGH; + else + mode->private_flags |= INTEL_MODE_DP_FORCE_6BPC; + } if (mode->clock < 10000) return MODE_CLOCK_LOW; @@ -672,6 +683,7 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, int lane_count, clock; int max_lane_count = intel_dp_max_lane_count(intel_dp); int max_clock = intel_dp_max_link_bw(intel_dp) == DP_LINK_BW_2_7 ? 1 : 0; + int bpp = mode->private_flags & INTEL_MODE_DP_FORCE_6BPC ? 18 : 0; static int bws[2] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7 }; if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) { @@ -689,7 +701,7 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, for (clock = 0; clock <= max_clock; clock++) { int link_avail = intel_dp_max_data_rate(intel_dp_link_clock(bws[clock]), lane_count); - if (intel_dp_link_required(intel_dp, mode->clock) + if (intel_dp_link_required(intel_dp, mode->clock, bpp) <= link_avail) { intel_dp->link_bw = bws[clock]; intel_dp->lane_count = lane_count; diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index bd9a604b73d..a1b4343814e 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -110,6 +110,7 @@ /* drm_display_mode->private_flags */ #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0) #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT) +#define INTEL_MODE_DP_FORCE_6BPC (0x10) static inline void intel_mode_set_pixel_multiplier(struct drm_display_mode *mode, -- cgit v1.2.3 From 142349f541d0bb6bc3e0d4563268105aada42b0b Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Fri, 16 Dec 2011 12:32:57 -0500 Subject: btrfs: lower the dirty balance poll interval Tests show that the original large intervals can easily make the dirty limit exceeded on 100 concurrent dd's. So adapt to as large as the next check point selected by the dirty throttling algorithm. Signed-off-by: Wu Fengguang Signed-off-by: Chris Mason --- fs/btrfs/file.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index dafdfa059bf..52305a885c3 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1167,6 +1167,8 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file, nrptrs = min((iov_iter_count(i) + PAGE_CACHE_SIZE - 1) / PAGE_CACHE_SIZE, PAGE_CACHE_SIZE / (sizeof(struct page *))); + nrptrs = min(nrptrs, current->nr_dirtied_pause - current->nr_dirtied); + nrptrs = max(nrptrs, 8); pages = kmalloc(nrptrs * sizeof(struct page *), GFP_KERNEL); if (!pages) return -ENOMEM; -- cgit v1.2.3 From ed4a51842a9d9e618d4f4c31349b15b974dba5df Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 16 Dec 2011 12:58:39 -0800 Subject: Revert "drm/i915: fix infinite recursion on unbind due to ilk vt-d w/a" This reverts commit eb1711bb94991e93669c5a1b5f84f11be2d51ea1. It blows up the i915 seqno tracking, resulting in the BUG_ON(seqno == 0); in i915_wait_request() triggering, which will cause lock-ups. See for example https://bugs.launchpad.net/ubuntu/+source/linux/+bug/903010 https://lkml.org/lkml/2011/12/14/395 Reported-requested-and-tested-by: Dirk Hohndel Reported-by: Richard Eames Reported-by: Rocko Requin Acked-by: Daniel Vetter Cc: Dave Airlie Cc: Chris Wilson Cc: Keith Packard Cc: Eric Anholt Signed-off-by: Linus Torvalds --- drivers/gpu/drm/i915/i915_gem.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 60ff1b63b56..8359dc77704 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2026,13 +2026,8 @@ i915_wait_request(struct intel_ring_buffer *ring, * to handle this, the waiter on a request often wants an associated * buffer to have made it to the inactive list, and we would need * a separate wait queue to handle that. - * - * To avoid a recursion with the ilk VT-d workaround (that calls - * gpu_idle when unbinding objects with interruptible==false) don't - * retire requests in that case (because it might call unbind if the - * active list holds the last reference to the object). */ - if (ret == 0 && dev_priv->mm.interruptible) + if (ret == 0) i915_gem_retire_requests_ring(ring); return ret; -- cgit v1.2.3 From 384703b8e6cd4c8ef08512e596024e028c91c339 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 16 Dec 2011 18:36:26 -0800 Subject: Linux 3.2-rc6 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index d1ea73f74c2..a43733df397 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 2 SUBLEVEL = 0 -EXTRAVERSION = -rc5 +EXTRAVERSION = -rc6 NAME = Saber-toothed Squirrel # *DOCUMENTATION* -- cgit v1.2.3 From b3bba872ddb0320a7ecb54decae53c13ceb2ed4c Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Thu, 8 Dec 2011 16:53:54 -0600 Subject: writeback: show writeback reason with __print_symbolic This makes the binary trace understandable by trace-cmd. CC: Dave Chinner CC: Curt Wohlgemuth CC: Steven Rostedt Signed-off-by: Wu Fengguang --- fs/fs-writeback.c | 11 ----------- include/trace/events/writeback.h | 15 +++++++++++++-- 2 files changed, 13 insertions(+), 13 deletions(-) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index ac86f8b3e3c..517f211a3bd 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -47,17 +47,6 @@ struct wb_writeback_work { struct completion *done; /* set if the caller waits */ }; -const char *wb_reason_name[] = { - [WB_REASON_BACKGROUND] = "background", - [WB_REASON_TRY_TO_FREE_PAGES] = "try_to_free_pages", - [WB_REASON_SYNC] = "sync", - [WB_REASON_PERIODIC] = "periodic", - [WB_REASON_LAPTOP_TIMER] = "laptop_timer", - [WB_REASON_FREE_MORE_MEM] = "free_more_memory", - [WB_REASON_FS_FREE_SPACE] = "fs_free_space", - [WB_REASON_FORKER_THREAD] = "forker_thread" -}; - /* * Include the creation of the trace points after defining the * wb_writeback_work structure so that the definition remains local to this diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index b99caa8b780..99d1d0decf8 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -21,6 +21,16 @@ {I_REFERENCED, "I_REFERENCED"} \ ) +#define WB_WORK_REASON \ + {WB_REASON_BACKGROUND, "background"}, \ + {WB_REASON_TRY_TO_FREE_PAGES, "try_to_free_pages"}, \ + {WB_REASON_SYNC, "sync"}, \ + {WB_REASON_PERIODIC, "periodic"}, \ + {WB_REASON_LAPTOP_TIMER, "laptop_timer"}, \ + {WB_REASON_FREE_MORE_MEM, "free_more_memory"}, \ + {WB_REASON_FS_FREE_SPACE, "fs_free_space"}, \ + {WB_REASON_FORKER_THREAD, "forker_thread"} + struct wb_writeback_work; DECLARE_EVENT_CLASS(writeback_work_class, @@ -55,7 +65,7 @@ DECLARE_EVENT_CLASS(writeback_work_class, __entry->for_kupdate, __entry->range_cyclic, __entry->for_background, - wb_reason_name[__entry->reason] + __print_symbolic(__entry->reason, WB_WORK_REASON) ) ); #define DEFINE_WRITEBACK_WORK_EVENT(name) \ @@ -184,7 +194,8 @@ TRACE_EVENT(writeback_queue_io, __entry->older, /* older_than_this in jiffies */ __entry->age, /* older_than_this in relative milliseconds */ __entry->moved, - wb_reason_name[__entry->reason]) + __print_symbolic(__entry->reason, WB_WORK_REASON) + ) ); TRACE_EVENT(global_dirty_state, -- cgit v1.2.3 From 37de03ea1246c8280f6c8c6f61ea98973e9b9448 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 9 Dec 2011 20:55:03 +0800 Subject: i2c: i2c-s3c2410: Add a cpu_relax() to busy wait for bus idle Be a bit more friendly. Signed-off-by: Mark Brown Signed-off-by: Ben Dooks --- drivers/i2c/busses/i2c-s3c2410.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 2754cef86a0..37b2de10680 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -534,6 +534,7 @@ static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c, /* first, try busy waiting briefly */ do { + cpu_relax(); iicstat = readl(i2c->regs + S3C2410_IICSTAT); } while ((iicstat & S3C2410_IICSTAT_START) && --spins); -- cgit v1.2.3 From 8ebe661dd2ab16e2e9c272ed5c86019c7407b9a1 Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Fri, 9 Dec 2011 15:33:55 +0530 Subject: i2c-s3c2410: Fix return code of s3c24xx_i2c_parse_dt_gpio s3c24xx_i2c_parse_dt_gpio is called when cfg_gpio is not defined in the platform data of the i2c device. When DT is not enabled, the above function always returns -EINVAL. Since there can be some i2c devices which don't need to configure any gpio lines, the probe of such devices would fail here. Changing the default return value to success would fix this issue. Signed-off-by: Tushar Behera Signed-off-by: Ben Dooks --- drivers/i2c/busses/i2c-s3c2410.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 37b2de10680..4c171808168 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -787,7 +787,7 @@ static void s3c24xx_i2c_dt_gpio_free(struct s3c24xx_i2c *i2c) #else static int s3c24xx_i2c_parse_dt_gpio(struct s3c24xx_i2c *i2c) { - return -EINVAL; + return 0; } static void s3c24xx_i2c_dt_gpio_free(struct s3c24xx_i2c *i2c) -- cgit v1.2.3 From 1d5a34fe990c9e2e2f672b238ad881d0d4ed376b Mon Sep 17 00:00:00 2001 From: Shubhrajyoti D Date: Tue, 6 Dec 2011 10:25:58 -0800 Subject: I2C: OMAP: fix FIFO usage for OMAP4 Currently the fifo depth is set to zero for OMAP4 which disables the FIFO usage. This patch enables the FIFO usage for I2C transactions on OMAP4 also. Tested on omap4430 and 3430. Tested-and-Reported-by: Nishanth Menon Signed-off-by: Shubhrajyoti D Signed-off-by: Kevin Hilman Signed-off-by: Ben Dooks --- drivers/i2c/busses/i2c-omap.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index a43d0023446..fa23faa20f0 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -1047,13 +1047,14 @@ omap_i2c_probe(struct platform_device *pdev) * size. This is to ensure that we can handle the status on int * call back latencies. */ - if (dev->rev >= OMAP_I2C_REV_ON_3530_4430) { - dev->fifo_size = 0; + + dev->fifo_size = (dev->fifo_size / 2); + + if (dev->rev >= OMAP_I2C_REV_ON_3530_4430) dev->b_hw = 0; /* Disable hardware fixes */ - } else { - dev->fifo_size = (dev->fifo_size / 2); + else dev->b_hw = 1; /* Enable hardware fixes */ - } + /* calculate wakeup latency constraint for MPU */ if (dev->set_mpu_wkup_lat != NULL) dev->latency = (1000000 * dev->fifo_size) / -- cgit v1.2.3 From 0d5fb5ea7d0e6bc84a523c39a666d7eb1a7e43de Mon Sep 17 00:00:00 2001 From: Feng Tang Date: Tue, 29 Nov 2011 15:19:10 +0800 Subject: i2c-eg20t: correct the driver init order of pch_i2c_probe() Before registering an adapter to i2c subsystem, we need make sure driver is ready for incoming i2c xfer, becasue the i2c_add_adapter() may trigger a i2c device driver's proble function which may start some real i2c xfer. I met this issue when integrating a TSC2007 i2c touch screen device with the i2c-eg20t driver. This patch will call request_irq() and hw init before calling i2c_add_adapter(). Signed-off-by: Feng Tang Signed-off-by: Ben Dooks --- drivers/i2c/busses/i2c-eg20t.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-) diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c index 8cebef49aea..18936ac9d51 100644 --- a/drivers/i2c/busses/i2c-eg20t.c +++ b/drivers/i2c/busses/i2c-eg20t.c @@ -893,6 +893,13 @@ static int __devinit pch_i2c_probe(struct pci_dev *pdev, /* Set the number of I2C channel instance */ adap_info->ch_num = id->driver_data; + ret = request_irq(pdev->irq, pch_i2c_handler, IRQF_SHARED, + KBUILD_MODNAME, adap_info); + if (ret) { + pch_pci_err(pdev, "request_irq FAILED\n"); + goto err_request_irq; + } + for (i = 0; i < adap_info->ch_num; i++) { pch_adap = &adap_info->pch_data[i].pch_adapter; adap_info->pch_i2c_suspended = false; @@ -910,28 +917,23 @@ static int __devinit pch_i2c_probe(struct pci_dev *pdev, pch_adap->dev.parent = &pdev->dev; + pch_i2c_init(&adap_info->pch_data[i]); ret = i2c_add_adapter(pch_adap); if (ret) { pch_pci_err(pdev, "i2c_add_adapter[ch:%d] FAILED\n", i); - goto err_i2c_add_adapter; + goto err_add_adapter; } - - pch_i2c_init(&adap_info->pch_data[i]); - } - ret = request_irq(pdev->irq, pch_i2c_handler, IRQF_SHARED, - KBUILD_MODNAME, adap_info); - if (ret) { - pch_pci_err(pdev, "request_irq FAILED\n"); - goto err_i2c_add_adapter; } pci_set_drvdata(pdev, adap_info); pch_pci_dbg(pdev, "returns %d.\n", ret); return 0; -err_i2c_add_adapter: +err_add_adapter: for (j = 0; j < i; j++) i2c_del_adapter(&adap_info->pch_data[j].pch_adapter); + free_irq(pdev->irq, adap_info); +err_request_irq: pci_iounmap(pdev, base_addr); err_pci_iomap: pci_release_regions(pdev); -- cgit v1.2.3 From fa0ad6575f6d459e215dded90b10cc455a889145 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Sat, 5 Nov 2011 12:21:30 +0100 Subject: kconfig: adapt update-po-config to new UML layout Commit 5c48b108 ("um: take arch/um/sys-x86 to arch/x86/um") broke the make target update-po-config, as its symlink trick (again) fails. (Previous breakage was fixed with commit bdc69ca4 ("kconfig: change update-po-config to reflect new layout of arch/um").) The new UML layout allows to drop the symlick trick entirely. And if, one day, another architecture supports UML too, that should now work without again breaking this make target. Signed-off-by: Paul Bolle Signed-off-by: Michal Marek --- scripts/kconfig/Makefile | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile index ba573fe7c74..914833d99b0 100644 --- a/scripts/kconfig/Makefile +++ b/scripts/kconfig/Makefile @@ -60,8 +60,8 @@ update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h --directory=$(srctree) --directory=$(objtree) \ --output $(obj)/config.pot $(Q)sed -i s/CHARSET/UTF-8/ $(obj)/config.pot - $(Q)ln -fs Kconfig.x86 arch/um/Kconfig - $(Q)(for i in `ls $(srctree)/arch/*/Kconfig`; \ + $(Q)(for i in `ls $(srctree)/arch/*/Kconfig \ + $(srctree)/arch/*/um/Kconfig`; \ do \ echo " GEN $$i"; \ $(obj)/kxgettext $$i \ @@ -69,7 +69,6 @@ update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h done ) $(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \ --output $(obj)/linux.pot - $(Q)rm -f $(srctree)/arch/um/Kconfig $(Q)rm -f $(obj)/config.pot PHONY += allnoconfig allyesconfig allmodconfig alldefconfig randconfig -- cgit v1.2.3 From 497f16f21a04060098c0da6ed522fbcafb90c0db Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Sat, 17 Dec 2011 18:33:37 -0800 Subject: pci: Fix hotplug of Express Module with pci bridges I noticed that hotplug of one setup does not work with recent change in pci tree. After checking the bridge conf setup, I noticed that the bridges get assigned but do not get enabled. The reason is the following commit, while simply ignores bridge resources when enabling a pci device: | commit bbef98ab0f019f1b0c25c1acdf1683c68933d41b | Author: Ram Pai | Date: Sun Nov 6 10:33:10 2011 +0800 | | PCI: defer enablement of SRIOV BARS |... | NOTE: Note, there is subtle change in the pci_enable_device() API. Any | driver that depends on SRIOV BARS to be enabled in pci_enable_device() | can fail. Put back bridge resource and ROM resource checking to fix the problem. That should fix regression like BIOS does not assign correct resource to bridge. Discussion can be found at: http://www.spinics.net/lists/linux-pci/msg12874.html Signed-off-by: Yinghai Lu Acked-by: Jesse Barnes Signed-off-by: Linus Torvalds --- drivers/pci/pci.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index faccb893770..6d4a5319148 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1129,7 +1129,11 @@ static int __pci_enable_device_flags(struct pci_dev *dev, if (atomic_add_return(1, &dev->enable_cnt) > 1) return 0; /* already enabled */ - for (i = 0; i < PCI_ROM_RESOURCE; i++) + /* only skip sriov related */ + for (i = 0; i <= PCI_ROM_RESOURCE; i++) + if (dev->resource[i].flags & flags) + bars |= (1 << i); + for (i = PCI_BRIDGE_RESOURCES; i < DEVICE_COUNT_RESOURCE; i++) if (dev->resource[i].flags & flags) bars |= (1 << i); -- cgit v1.2.3 From 36e999a83a4a4badd389901eb6d23a30e199b8db Mon Sep 17 00:00:00 2001 From: Mat Martineau Date: Thu, 8 Dec 2011 17:23:21 -0800 Subject: Bluetooth: Prevent uninitialized data access in L2CAP configuration When configuring an ERTM or streaming mode connection, remote devices are expected to send an RFC option in a successful config response. A misbehaving remote device might not send an RFC option, and the L2CAP code should not access uninitialized data in this case. Signed-off-by: Mat Martineau Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan --- net/bluetooth/l2cap_core.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 5ea94a1eecf..17b5b1cd965 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -2152,7 +2152,7 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, voi void *ptr = req->data; int type, olen; unsigned long val; - struct l2cap_conf_rfc rfc; + struct l2cap_conf_rfc rfc = { .mode = L2CAP_MODE_BASIC }; BT_DBG("chan %p, rsp %p, len %d, req %p", chan, rsp, len, data); @@ -2271,6 +2271,16 @@ static void l2cap_conf_rfc_get(struct l2cap_chan *chan, void *rsp, int len) } } + /* Use sane default values in case a misbehaving remote device + * did not send an RFC option. + */ + rfc.mode = chan->mode; + rfc.retrans_timeout = cpu_to_le16(L2CAP_DEFAULT_RETRANS_TO); + rfc.monitor_timeout = cpu_to_le16(L2CAP_DEFAULT_MONITOR_TO); + rfc.max_pdu_size = cpu_to_le16(chan->imtu); + + BT_ERR("Expected RFC option was not found, using defaults"); + done: switch (rfc.mode) { case L2CAP_MODE_ERTM: -- cgit v1.2.3 From 79e654787c67f6b05f73366ff8ccac72ba7249e6 Mon Sep 17 00:00:00 2001 From: Mat Martineau Date: Tue, 6 Dec 2011 16:23:26 -0800 Subject: Bluetooth: Clear RFCOMM session timer when disconnecting last channel When the last RFCOMM data channel is closed, a timer is normally set up to disconnect the control channel at a later time. If the control channel disconnect command is sent with the timer pending, the timer needs to be cancelled. If the timer is not cancelled in this situation, the reference counting logic for the RFCOMM session does not work correctly when the remote device closes the L2CAP connection. The session is freed at the wrong time, leading to a kernel panic. Signed-off-by: Mat Martineau Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan --- net/bluetooth/rfcomm/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c index 4e32e18211f..2d28dfe9838 100644 --- a/net/bluetooth/rfcomm/core.c +++ b/net/bluetooth/rfcomm/core.c @@ -1146,6 +1146,7 @@ static int rfcomm_recv_ua(struct rfcomm_session *s, u8 dlci) if (list_empty(&s->dlcs)) { s->state = BT_DISCONN; rfcomm_send_disc(s, 0); + rfcomm_session_clear_timer(s); } break; -- cgit v1.2.3 From d7660918fce210f421cc58c060ca3de71e4ffd37 Mon Sep 17 00:00:00 2001 From: "Gustavo F. Padovan" Date: Sun, 18 Dec 2011 22:33:30 -0200 Subject: Revert "Bluetooth: Revert: Fix L2CAP connection establishment" This reverts commit 4dff523a913197e3314c7b0d08734ab037709093. It was reported that this patch cause issues when trying to connect to legacy devices so reverting it. Reported-by: David Fries Signed-off-by: Gustavo F. Padovan --- net/bluetooth/hci_conn.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index e0af7237cd9..c1c597e3e19 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -673,7 +673,7 @@ int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) goto encrypt; auth: - if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) + if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) return 0; if (!hci_conn_auth(conn, sec_level, auth_type)) -- cgit v1.2.3 From 8015e3defe491d305b20c2e64b154b999e6da065 Mon Sep 17 00:00:00 2001 From: Bo Shen Date: Mon, 19 Dec 2011 17:57:52 +0800 Subject: ALSA: atmel/ac97c: using software reset instead hardware reset if not available Signed-off-by: Bo Shen Acked-by: Nicolas Ferre Signed-off-by: Takashi Iwai --- sound/atmel/ac97c.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/atmel/ac97c.c b/sound/atmel/ac97c.c index 6e5addeb236..73516f69ac7 100644 --- a/sound/atmel/ac97c.c +++ b/sound/atmel/ac97c.c @@ -899,6 +899,10 @@ static void atmel_ac97c_reset(struct atmel_ac97c *chip) /* AC97 v2.2 specifications says minimum 1 us. */ udelay(2); gpio_set_value(chip->reset_pin, 1); + } else { + ac97c_writel(chip, MR, AC97C_MR_WRST | AC97C_MR_ENA); + udelay(2); + ac97c_writel(chip, MR, AC97C_MR_ENA); } } -- cgit v1.2.3 From b1b73d095084e754562961c443aa8f6587a55f8e Mon Sep 17 00:00:00 2001 From: Kusanagi Kouichi Date: Mon, 19 Dec 2011 18:13:19 +0900 Subject: time/clocksource: Fix kernel-doc warnings Fix various KernelDoc build warnings. Signed-off-by: Kusanagi Kouichi Cc: John Stultz Link: http://lkml.kernel.org/r/20111219091320.0D5AF6FC03D@msa105.auone-net.jp Signed-off-by: Ingo Molnar --- include/linux/clocksource.h | 11 ++++++++--- kernel/time/clocksource.c | 12 +++++++++--- 2 files changed, 17 insertions(+), 6 deletions(-) diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index c86c940d1de..081147da056 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -71,7 +71,7 @@ struct timecounter { /** * cyclecounter_cyc2ns - converts cycle counter cycles to nanoseconds - * @tc: Pointer to cycle counter. + * @cc: Pointer to cycle counter. * @cycles: Cycles * * XXX - This could use some mult_lxl_ll() asm optimization. Same code @@ -114,7 +114,7 @@ extern u64 timecounter_read(struct timecounter *tc); * time base as values returned by * timecounter_read() * @tc: Pointer to time counter. - * @cycle: a value returned by tc->cc->read() + * @cycle_tstamp: a value returned by tc->cc->read() * * Cycle counts that are converted correctly as long as they * fall into the interval [-1/2 max cycle count, +1/2 max cycle count], @@ -156,11 +156,12 @@ extern u64 timecounter_cyc2time(struct timecounter *tc, * @mult: cycle to nanosecond multiplier * @shift: cycle to nanosecond divisor (power of two) * @max_idle_ns: max idle time permitted by the clocksource (nsecs) - * @maxadj maximum adjustment value to mult (~11%) + * @maxadj: maximum adjustment value to mult (~11%) * @flags: flags describing special properties * @archdata: arch-specific data * @suspend: suspend function for the clocksource, if necessary * @resume: resume function for the clocksource, if necessary + * @cycle_last: most recent cycle counter value seen by ::read() */ struct clocksource { /* @@ -187,6 +188,7 @@ struct clocksource { void (*suspend)(struct clocksource *cs); void (*resume)(struct clocksource *cs); + /* private: */ #ifdef CONFIG_CLOCKSOURCE_WATCHDOG /* Watchdog related data, used by the framework */ struct list_head wd_list; @@ -261,6 +263,9 @@ static inline u32 clocksource_hz2mult(u32 hz, u32 shift_constant) /** * clocksource_cyc2ns - converts clocksource cycles to nanoseconds + * @cycles: cycles + * @mult: cycle to nanosecond multiplier + * @shift: cycle to nanosecond divisor (power of two) * * Converts cycles to nanoseconds, using the given mult and shift. * diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index da2f760e780..d3ad022136e 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -647,7 +647,7 @@ static void clocksource_enqueue(struct clocksource *cs) /** * __clocksource_updatefreq_scale - Used update clocksource with new freq - * @t: clocksource to be registered + * @cs: clocksource to be registered * @scale: Scale factor multiplied against freq to get clocksource hz * @freq: clocksource frequency (cycles per second) divided by scale * @@ -699,7 +699,7 @@ EXPORT_SYMBOL_GPL(__clocksource_updatefreq_scale); /** * __clocksource_register_scale - Used to install new clocksources - * @t: clocksource to be registered + * @cs: clocksource to be registered * @scale: Scale factor multiplied against freq to get clocksource hz * @freq: clocksource frequency (cycles per second) divided by scale * @@ -727,7 +727,7 @@ EXPORT_SYMBOL_GPL(__clocksource_register_scale); /** * clocksource_register - Used to install new clocksources - * @t: clocksource to be registered + * @cs: clocksource to be registered * * Returns -EBUSY if registration fails, zero otherwise. */ @@ -761,6 +761,8 @@ static void __clocksource_change_rating(struct clocksource *cs, int rating) /** * clocksource_change_rating - Change the rating of a registered clocksource + * @cs: clocksource to be changed + * @rating: new rating */ void clocksource_change_rating(struct clocksource *cs, int rating) { @@ -772,6 +774,7 @@ EXPORT_SYMBOL(clocksource_change_rating); /** * clocksource_unregister - remove a registered clocksource + * @cs: clocksource to be unregistered */ void clocksource_unregister(struct clocksource *cs) { @@ -787,6 +790,7 @@ EXPORT_SYMBOL(clocksource_unregister); /** * sysfs_show_current_clocksources - sysfs interface for current clocksource * @dev: unused + * @attr: unused * @buf: char buffer to be filled with clocksource list * * Provides sysfs interface for listing current clocksource. @@ -807,6 +811,7 @@ sysfs_show_current_clocksources(struct sys_device *dev, /** * sysfs_override_clocksource - interface for manually overriding clocksource * @dev: unused + * @attr: unused * @buf: name of override clocksource * @count: length of buffer * @@ -842,6 +847,7 @@ static ssize_t sysfs_override_clocksource(struct sys_device *dev, /** * sysfs_show_available_clocksources - sysfs interface for listing clocksource * @dev: unused + * @attr: unused * @buf: char buffer to be filled with clocksource list * * Provides sysfs interface for listing registered clocksources -- cgit v1.2.3 From c32987918efaa6949c5b2f3e43b654a742b18f7d Mon Sep 17 00:00:00 2001 From: Ilya Yanok Date: Tue, 13 Dec 2011 00:37:56 +0100 Subject: mtd: plat_ram: call mtd_device_register only if partition data exists mtd_device_parse_register() registers the device as a whole if no partition data is passed so there is no reason to call mtd_device_register() after that. Signed-off-by: Ilya Yanok Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/maps/plat-ram.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/maps/plat-ram.c b/drivers/mtd/maps/plat-ram.c index 94f55348972..45876d0e5b8 100644 --- a/drivers/mtd/maps/plat-ram.c +++ b/drivers/mtd/maps/plat-ram.c @@ -227,10 +227,14 @@ static int platram_probe(struct platform_device *pdev) if (!err) dev_info(&pdev->dev, "registered mtd device\n"); - /* add the whole device. */ - err = mtd_device_register(info->mtd, NULL, 0); - if (err) - dev_err(&pdev->dev, "failed to register the entire device\n"); + if (pdata->nr_partitions) { + /* add the whole device. */ + err = mtd_device_register(info->mtd, NULL, 0); + if (err) { + dev_err(&pdev->dev, + "failed to register the entire device\n"); + } + } return err; -- cgit v1.2.3 From 7422ba5343b8c1dbe1a517d0fcc15e7d671ca960 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Mon, 19 Dec 2011 13:45:01 +0200 Subject: usb: gadget: epautoconf: do not change number of streams We should not change gadget driver's descriptors just because we think it's right to do so. There are several of reasons which would support this statement but it suffices to say that this was probably never tested because it updates bmAttributes without asking the driver if it's ok to do so. This means that e.g. on UASP gadget it would enable stream support even for the command endpoint which must not have stream support enabled. In fact, this change is fixing the bug introduced by commit a59d6b9 (usb: gadget: add streams support to the gadget framework) which was caught when testing UASP gadget with dwc3 driver. Cc: Tatyana Brokhman Signed-off-by: Felipe Balbi --- drivers/usb/gadget/epautoconf.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c index 596a0b464e6..4dff83d2f26 100644 --- a/drivers/usb/gadget/epautoconf.c +++ b/drivers/usb/gadget/epautoconf.c @@ -130,9 +130,6 @@ ep_matches ( num_req_streams = ep_comp->bmAttributes & 0x1f; if (num_req_streams > ep->max_streams) return 0; - /* Update the ep_comp descriptor if needed */ - if (num_req_streams != ep->max_streams) - ep_comp->bmAttributes = ep->max_streams; } } -- cgit v1.2.3 From ebd4c6f6261c96d1cf9f004965384d57c4202fd6 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Mon, 28 Nov 2011 13:19:08 +0100 Subject: vmwgfx: Use the revised fifo hw version register when present The driver implements the needed resource management required to use that register. Signed-off-by: Thomas Hellstrom Reviewed-by: Jakob Bornecrantz Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c | 8 +++++++- drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c | 10 ++++++++-- 2 files changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c index 03bbc2a6f9a..a0c2f12b1e1 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c @@ -33,6 +33,7 @@ bool vmw_fifo_have_3d(struct vmw_private *dev_priv) { __le32 __iomem *fifo_mem = dev_priv->mmio_virt; uint32_t fifo_min, hwversion; + const struct vmw_fifo_state *fifo = &dev_priv->fifo; if (!(dev_priv->capabilities & SVGA_CAP_EXTENDED_FIFO)) return false; @@ -41,7 +42,12 @@ bool vmw_fifo_have_3d(struct vmw_private *dev_priv) if (fifo_min <= SVGA_FIFO_3D_HWVERSION * sizeof(unsigned int)) return false; - hwversion = ioread32(fifo_mem + SVGA_FIFO_3D_HWVERSION); + hwversion = ioread32(fifo_mem + + ((fifo->capabilities & + SVGA_FIFO_CAP_3D_HWVERSION_REVISED) ? + SVGA_FIFO_3D_HWVERSION_REVISED : + SVGA_FIFO_3D_HWVERSION)); + if (hwversion == 0) return false; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c index 5ff561d4e0b..1edb63ec3f3 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c @@ -58,8 +58,14 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data, case DRM_VMW_PARAM_FIFO_HW_VERSION: { __le32 __iomem *fifo_mem = dev_priv->mmio_virt; - - param->value = ioread32(fifo_mem + SVGA_FIFO_3D_HWVERSION); + const struct vmw_fifo_state *fifo = &dev_priv->fifo; + + param->value = + ioread32(fifo_mem + + ((fifo->capabilities & + SVGA_FIFO_CAP_3D_HWVERSION_REVISED) ? + SVGA_FIFO_3D_HWVERSION_REVISED : + SVGA_FIFO_3D_HWVERSION)); break; } default: -- cgit v1.2.3 From ef5ab24bd3373941bd27e371512c0009eb11581c Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Mon, 28 Nov 2011 13:19:09 +0100 Subject: vmwgfx: Remove dmabuf check in present ioctl Doesn't protect any error code and only gets in the way of debugging. Signed-off-by: Jakob Bornecrantz Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c index 1edb63ec3f3..66917c6c381 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c @@ -172,13 +172,7 @@ int vmw_present_ioctl(struct drm_device *dev, void *data, ret = -EINVAL; goto out_no_fb; } - vfb = vmw_framebuffer_to_vfb(obj_to_fb(obj)); - if (!vfb->dmabuf) { - DRM_ERROR("Framebuffer not dmabuf backed.\n"); - ret = -EINVAL; - goto out_no_fb; - } ret = ttm_read_lock(&vmaster->lock, true); if (unlikely(ret != 0)) -- cgit v1.2.3 From 6a91d97e02d7efde955c25a5b0fbf950cd2a6efa Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Mon, 28 Nov 2011 13:19:10 +0100 Subject: vmwgfx: Refactor cursor update Signed-off-by: Jakob Bornecrantz Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 66 ++++++++++++++++++++++--------------- 1 file changed, 39 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index 37d40545ed7..bee671624a9 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -82,6 +82,43 @@ int vmw_cursor_update_image(struct vmw_private *dev_priv, return 0; } +int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv, + struct vmw_dma_buffer *dmabuf, + u32 width, u32 height, + u32 hotspotX, u32 hotspotY) +{ + struct ttm_bo_kmap_obj map; + unsigned long kmap_offset; + unsigned long kmap_num; + void *virtual; + bool dummy; + int ret; + + kmap_offset = 0; + kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT; + + ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0); + if (unlikely(ret != 0)) { + DRM_ERROR("reserve failed\n"); + return -EINVAL; + } + + ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map); + if (unlikely(ret != 0)) + goto err_unreserve; + + virtual = ttm_kmap_obj_virtual(&map, &dummy); + ret = vmw_cursor_update_image(dev_priv, virtual, width, height, + hotspotX, hotspotY); + + ttm_bo_kunmap(&map); +err_unreserve: + ttm_bo_unreserve(&dmabuf->base); + + return ret; +} + + void vmw_cursor_update_position(struct vmw_private *dev_priv, bool show, int x, int y) { @@ -146,36 +183,11 @@ int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv, vmw_cursor_update_image(dev_priv, surface->snooper.image, 64, 64, du->hotspot_x, du->hotspot_y); } else if (dmabuf) { - struct ttm_bo_kmap_obj map; - unsigned long kmap_offset; - unsigned long kmap_num; - void *virtual; - bool dummy; - /* vmw_user_surface_lookup takes one reference */ du->cursor_dmabuf = dmabuf; - kmap_offset = 0; - kmap_num = (64*64*4) >> PAGE_SHIFT; - - ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0); - if (unlikely(ret != 0)) { - DRM_ERROR("reserve failed\n"); - return -EINVAL; - } - - ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map); - if (unlikely(ret != 0)) - goto err_unreserve; - - virtual = ttm_kmap_obj_virtual(&map, &dummy); - vmw_cursor_update_image(dev_priv, virtual, 64, 64, - du->hotspot_x, du->hotspot_y); - - ttm_bo_kunmap(&map); -err_unreserve: - ttm_bo_unreserve(&dmabuf->base); - + ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height, + du->hotspot_x, du->hotspot_y); } else { vmw_cursor_update_position(dev_priv, false, 0, 0); return 0; -- cgit v1.2.3 From 551a6697d08f92a311d6adbf8d03af2bc7f9e2ee Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Mon, 28 Nov 2011 13:19:11 +0100 Subject: vmwgfx: Add helper function to get surface or dmabuf Signed-off-by: Jakob Bornecrantz Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 5 +++++ drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 23 +++++++++++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 8cca91a93bd..dc279706ca7 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -390,6 +390,11 @@ extern int vmw_context_check(struct vmw_private *dev_priv, struct ttm_object_file *tfile, int id, struct vmw_resource **p_res); +extern int vmw_user_lookup_handle(struct vmw_private *dev_priv, + struct ttm_object_file *tfile, + uint32_t handle, + struct vmw_surface **out_surf, + struct vmw_dma_buffer **out_buf); extern void vmw_surface_res_free(struct vmw_resource *res); extern int vmw_surface_init(struct vmw_private *dev_priv, struct vmw_surface *srf, diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index 86c5e4cceb3..1c7f09e2681 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -1190,6 +1190,29 @@ void vmw_resource_unreserve(struct list_head *list) write_unlock(lock); } +/** + * Helper function that looks either a surface or dmabuf. + * + * The pointer this pointed at by out_surf and out_buf needs to be null. + */ +int vmw_user_lookup_handle(struct vmw_private *dev_priv, + struct ttm_object_file *tfile, + uint32_t handle, + struct vmw_surface **out_surf, + struct vmw_dma_buffer **out_buf) +{ + int ret; + + BUG_ON(*out_surf || *out_buf); + + ret = vmw_user_surface_lookup_handle(dev_priv, tfile, handle, out_surf); + if (!ret) + return 0; + + ret = vmw_user_dmabuf_lookup(tfile, handle, out_buf); + return ret; +} + int vmw_user_surface_lookup_handle(struct vmw_private *dev_priv, struct ttm_object_file *tfile, -- cgit v1.2.3 From e7ac9211f29f2fc2e7d11586a33267d2a26d3f2f Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Mon, 28 Nov 2011 13:19:12 +0100 Subject: vmwgfx: Refactor kms code to use vmw_user_lookup_handle helper Signed-off-by: Jakob Bornecrantz Signed-off-by: Thomas Hellstrom Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 98 ++++++++++++++----------------------- 1 file changed, 37 insertions(+), 61 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index bee671624a9..ac24cfd431b 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -147,24 +147,21 @@ int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv, return -EINVAL; if (handle) { - ret = vmw_user_surface_lookup_handle(dev_priv, tfile, - handle, &surface); - if (!ret) { - if (!surface->snooper.image) { - DRM_ERROR("surface not suitable for cursor\n"); - vmw_surface_unreference(&surface); - return -EINVAL; - } - } else { - ret = vmw_user_dmabuf_lookup(tfile, - handle, &dmabuf); - if (ret) { - DRM_ERROR("failed to find surface or dmabuf: %i\n", ret); - return -EINVAL; - } + ret = vmw_user_lookup_handle(dev_priv, tfile, + handle, &surface, &dmabuf); + if (ret) { + DRM_ERROR("failed to find surface or dmabuf: %i\n", ret); + return -EINVAL; } } + /* need to do this before taking down old image */ + if (surface && !surface->snooper.image) { + DRM_ERROR("surface not suitable for cursor\n"); + vmw_surface_unreference(&surface); + return -EINVAL; + } + /* takedown old cursor */ if (du->cursor_surface) { du->cursor_surface->snooper.crtc = NULL; @@ -568,6 +565,10 @@ static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv, * Sanity checks. */ + /* Surface must be marked as a scanout. */ + if (unlikely(!surface->scanout)) + return -EINVAL; + if (unlikely(surface->mip_levels[0] != 1 || surface->num_sizes != 1 || surface->sizes[0].width < mode_cmd->width || @@ -1045,46 +1046,29 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev, return ERR_PTR(-ENOENT); } - /** - * End conditioned code. - */ - - ret = vmw_user_surface_lookup_handle(dev_priv, tfile, - mode_cmd->handle, &surface); + /* returns either a dmabuf or surface */ + ret = vmw_user_lookup_handle(dev_priv, tfile, + mode_cmd->handle, + &surface, &bo); if (ret) - goto try_dmabuf; - - if (!surface->scanout) - goto err_not_scanout; - - ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv, surface, - &vfb, mode_cmd); - - /* vmw_user_surface_lookup takes one ref so does new_fb */ - vmw_surface_unreference(&surface); - - if (ret) { - DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret); - ttm_base_object_unref(&user_obj); - return ERR_PTR(ret); - } else - vfb->user_obj = user_obj; - return &vfb->base; - -try_dmabuf: - DRM_INFO("%s: trying buffer\n", __func__); - - ret = vmw_user_dmabuf_lookup(tfile, mode_cmd->handle, &bo); - if (ret) { - DRM_ERROR("failed to find buffer: %i\n", ret); - return ERR_PTR(-ENOENT); - } - - ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb, - mode_cmd); + goto err_out; + + /* Create the new framebuffer depending one what we got back */ + if (bo) + ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb, + mode_cmd); + else if (surface) + ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv, + surface, &vfb, mode_cmd); + else + BUG(); - /* vmw_user_dmabuf_lookup takes one ref so does new_fb */ - vmw_dmabuf_unreference(&bo); +err_out: + /* vmw_user_lookup_handle takes one ref so does new_fb */ + if (bo) + vmw_dmabuf_unreference(&bo); + if (surface) + vmw_surface_unreference(&surface); if (ret) { DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret); @@ -1094,14 +1078,6 @@ try_dmabuf: vfb->user_obj = user_obj; return &vfb->base; - -err_not_scanout: - DRM_ERROR("surface not marked as scanout\n"); - /* vmw_user_surface_lookup takes one ref */ - vmw_surface_unreference(&surface); - ttm_base_object_unref(&user_obj); - - return ERR_PTR(-EINVAL); } static struct drm_mode_config_funcs vmw_kms_funcs = { -- cgit v1.2.3 From 203dc2201326fa64411158c84ab0745546300310 Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Mon, 28 Nov 2011 13:19:13 +0100 Subject: vmwgfx: Do better culling of presents Signed-off-by: Jakob Bornecrantz Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 37 +++++++++++++++++++++++++------------ 1 file changed, 25 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index ac24cfd431b..d31ae338cfc 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -1098,6 +1098,7 @@ int vmw_kms_present(struct vmw_private *dev_priv, size_t fifo_size; int i, k, num_units; int ret = 0; /* silence warning */ + int left, right, top, bottom; struct { SVGA3dCmdHeader header; @@ -1122,30 +1123,42 @@ int vmw_kms_present(struct vmw_private *dev_priv, return -ENOMEM; } + left = clips->x; + right = clips->x + clips->w; + top = clips->y; + bottom = clips->y + clips->h; + + for (i = 1; i < num_clips; i++) { + left = min_t(int, left, (int)clips[i].x); + right = max_t(int, right, (int)clips[i].x + clips[i].w); + top = min_t(int, top, (int)clips[i].y); + bottom = max_t(int, bottom, (int)clips[i].y + clips[i].h); + } + /* only need to do this once */ memset(cmd, 0, fifo_size); cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN); cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header)); - cmd->body.srcRect.left = 0; - cmd->body.srcRect.right = surface->sizes[0].width; - cmd->body.srcRect.top = 0; - cmd->body.srcRect.bottom = surface->sizes[0].height; + cmd->body.srcRect.left = left; + cmd->body.srcRect.right = right; + cmd->body.srcRect.top = top; + cmd->body.srcRect.bottom = bottom; blits = (SVGASignedRect *)&cmd[1]; for (i = 0; i < num_clips; i++) { - blits[i].left = clips[i].x; - blits[i].right = clips[i].x + clips[i].w; - blits[i].top = clips[i].y; - blits[i].bottom = clips[i].y + clips[i].h; + blits[i].left = clips[i].x - left; + blits[i].right = clips[i].x + clips[i].w - left; + blits[i].top = clips[i].y - top; + blits[i].bottom = clips[i].y + clips[i].h - top; } for (k = 0; k < num_units; k++) { struct vmw_display_unit *unit = units[k]; - int clip_x1 = destX - unit->crtc.x; - int clip_y1 = destY - unit->crtc.y; - int clip_x2 = clip_x1 + surface->sizes[0].width; - int clip_y2 = clip_y1 + surface->sizes[0].height; + int clip_x1 = left + destX - unit->crtc.x; + int clip_y1 = top + destY - unit->crtc.y; + int clip_x2 = right + destX - unit->crtc.x; + int clip_y2 = bottom + destY - unit->crtc.y; /* skip any crtcs that misses the clip region */ if (clip_x1 >= unit->crtc.mode.hdisplay || -- cgit v1.2.3 From bfc2638dc05f2b27538e40821fdbc8399730b1ea Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Mon, 28 Nov 2011 13:19:14 +0100 Subject: vmwgfx: Resend the cursor after legacy modeset Signed-off-by: Jakob Bornecrantz Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_kms.h | 5 +++++ drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 22 +++++++++++++++++++++- 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h index af8e6e5bd96..e1cb8556355 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h @@ -62,9 +62,14 @@ struct vmw_framebuffer { int vmw_cursor_update_image(struct vmw_private *dev_priv, u32 *image, u32 width, u32 height, u32 hotspotX, u32 hotspotY); +int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv, + struct vmw_dma_buffer *dmabuf, + u32 width, u32 height, + u32 hotspotX, u32 hotspotY); void vmw_cursor_update_position(struct vmw_private *dev_priv, bool show, int x, int y); + /** * Base class display unit. * diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c index 90c5e392849..8f8dbd43c33 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c @@ -74,9 +74,10 @@ static int vmw_ldu_commit_list(struct vmw_private *dev_priv) { struct vmw_legacy_display *lds = dev_priv->ldu_priv; struct vmw_legacy_display_unit *entry; + struct vmw_display_unit *du = NULL; struct drm_framebuffer *fb = NULL; struct drm_crtc *crtc = NULL; - int i = 0; + int i = 0, ret; /* If there is no display topology the host just assumes * that the guest will set the same layout as the host. @@ -129,6 +130,25 @@ static int vmw_ldu_commit_list(struct vmw_private *dev_priv) lds->last_num_active = lds->num_active; + + /* Find the first du with a cursor. */ + list_for_each_entry(entry, &lds->active, active) { + du = &entry->base; + + if (!du->cursor_dmabuf) + continue; + + ret = vmw_cursor_update_dmabuf(dev_priv, + du->cursor_dmabuf, + 64, 64, + du->hotspot_x, + du->hotspot_y); + if (ret == 0) + break; + + DRM_ERROR("Could not update cursor image\n"); + } + return 0; } -- cgit v1.2.3 From 6abff3c78051e40130a1c653f874fb12b9d40254 Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Mon, 28 Nov 2011 13:19:15 +0100 Subject: vmwgfx: Clip cliprects against screen boundaries in present and dirty Signed-off-by: Jakob Bornecrantz Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 209 +++++++++++++++++++++++++++--------- 1 file changed, 156 insertions(+), 53 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index d31ae338cfc..8aa1dbb45c6 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -31,6 +31,44 @@ /* Might need a hrtimer here? */ #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1) + +struct vmw_clip_rect { + int x1, x2, y1, y2; +}; + +/** + * Clip @num_rects number of @rects against @clip storing the + * results in @out_rects and the number of passed rects in @out_num. + */ +void vmw_clip_cliprects(struct drm_clip_rect *rects, + int num_rects, + struct vmw_clip_rect clip, + SVGASignedRect *out_rects, + int *out_num) +{ + int i, k; + + for (i = 0, k = 0; i < num_rects; i++) { + int x1 = max_t(int, clip.x1, rects[i].x1); + int y1 = max_t(int, clip.y1, rects[i].y1); + int x2 = min_t(int, clip.x2, rects[i].x2); + int y2 = min_t(int, clip.y2, rects[i].y2); + + if (x1 >= x2) + continue; + if (y1 >= y2) + continue; + + out_rects[k].left = x1; + out_rects[k].top = y1; + out_rects[k].right = x2; + out_rects[k].bottom = y2; + k++; + } + + *out_num = k; +} + void vmw_display_unit_cleanup(struct vmw_display_unit *du) { if (du->cursor_surface) @@ -386,8 +424,9 @@ static int do_surface_dirty_sou(struct vmw_private *dev_priv, struct drm_clip_rect *clips, unsigned num_clips, int inc) { - struct drm_clip_rect *clips_ptr; struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS]; + struct drm_clip_rect *clips_ptr; + struct drm_clip_rect *tmp; struct drm_crtc *crtc; size_t fifo_size; int i, num_units; @@ -400,7 +439,6 @@ static int do_surface_dirty_sou(struct vmw_private *dev_priv, } *cmd; SVGASignedRect *blits; - num_units = 0; list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) { @@ -411,13 +449,24 @@ static int do_surface_dirty_sou(struct vmw_private *dev_priv, BUG_ON(!clips || !num_clips); + tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL); + if (unlikely(tmp == NULL)) { + DRM_ERROR("Temporary cliprect memory alloc failed.\n"); + return -ENOMEM; + } + fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips; cmd = kzalloc(fifo_size, GFP_KERNEL); if (unlikely(cmd == NULL)) { DRM_ERROR("Temporary fifo memory alloc failed.\n"); - return -ENOMEM; + ret = -ENOMEM; + goto out_free_tmp; } + /* setup blits pointer */ + blits = (SVGASignedRect *)&cmd[1]; + + /* initial clip region */ left = clips->x1; right = clips->x2; top = clips->y1; @@ -443,45 +492,60 @@ static int do_surface_dirty_sou(struct vmw_private *dev_priv, cmd->body.srcRect.bottom = bottom; clips_ptr = clips; - blits = (SVGASignedRect *)&cmd[1]; for (i = 0; i < num_clips; i++, clips_ptr += inc) { - blits[i].left = clips_ptr->x1 - left; - blits[i].right = clips_ptr->x2 - left; - blits[i].top = clips_ptr->y1 - top; - blits[i].bottom = clips_ptr->y2 - top; + tmp[i].x1 = clips_ptr->x1 - left; + tmp[i].x2 = clips_ptr->x2 - left; + tmp[i].y1 = clips_ptr->y1 - top; + tmp[i].y2 = clips_ptr->y2 - top; } /* do per unit writing, reuse fifo for each */ for (i = 0; i < num_units; i++) { struct vmw_display_unit *unit = units[i]; - int clip_x1 = left - unit->crtc.x; - int clip_y1 = top - unit->crtc.y; - int clip_x2 = right - unit->crtc.x; - int clip_y2 = bottom - unit->crtc.y; + struct vmw_clip_rect clip; + int num; + + clip.x1 = left - unit->crtc.x; + clip.y1 = top - unit->crtc.y; + clip.x2 = right - unit->crtc.x; + clip.y2 = bottom - unit->crtc.y; /* skip any crtcs that misses the clip region */ - if (clip_x1 >= unit->crtc.mode.hdisplay || - clip_y1 >= unit->crtc.mode.vdisplay || - clip_x2 <= 0 || clip_y2 <= 0) + if (clip.x1 >= unit->crtc.mode.hdisplay || + clip.y1 >= unit->crtc.mode.vdisplay || + clip.x2 <= 0 || clip.y2 <= 0) continue; + /* + * In order for the clip rects to be correctly scaled + * the src and dest rects needs to be the same size. + */ + cmd->body.destRect.left = clip.x1; + cmd->body.destRect.right = clip.x2; + cmd->body.destRect.top = clip.y1; + cmd->body.destRect.bottom = clip.y2; + + /* create a clip rect of the crtc in dest coords */ + clip.x2 = unit->crtc.mode.hdisplay - clip.x1; + clip.y2 = unit->crtc.mode.vdisplay - clip.y1; + clip.x1 = 0 - clip.x1; + clip.y1 = 0 - clip.y1; + /* need to reset sid as it is changed by execbuf */ cmd->body.srcImage.sid = cpu_to_le32(framebuffer->user_handle); - cmd->body.destScreenId = unit->unit; - /* - * The blit command is a lot more resilient then the - * readback command when it comes to clip rects. So its - * okay to go out of bounds. - */ + /* clip and write blits to cmd stream */ + vmw_clip_cliprects(tmp, num_clips, clip, blits, &num); - cmd->body.destRect.left = clip_x1; - cmd->body.destRect.right = clip_x2; - cmd->body.destRect.top = clip_y1; - cmd->body.destRect.bottom = clip_y2; + /* if no cliprects hit skip this */ + if (num == 0) + continue; + /* recalculate package length */ + fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num; + cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header)); ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size, 0, NULL); @@ -489,7 +553,10 @@ static int do_surface_dirty_sou(struct vmw_private *dev_priv, break; } + kfree(cmd); +out_free_tmp: + kfree(tmp); return ret; } @@ -795,6 +862,7 @@ static int do_dmabuf_dirty_sou(struct drm_file *file_priv, int clip_y1 = clips_ptr->y1 - unit->crtc.y; int clip_x2 = clips_ptr->x2 - unit->crtc.x; int clip_y2 = clips_ptr->y2 - unit->crtc.y; + int move_x, move_y; /* skip any crtcs that misses the clip region */ if (clip_x1 >= unit->crtc.mode.hdisplay || @@ -802,12 +870,21 @@ static int do_dmabuf_dirty_sou(struct drm_file *file_priv, clip_x2 <= 0 || clip_y2 <= 0) continue; + /* clip size to crtc size */ + clip_x2 = min_t(int, clip_x2, unit->crtc.mode.hdisplay); + clip_y2 = min_t(int, clip_y2, unit->crtc.mode.vdisplay); + + /* translate both src and dest to bring clip into screen */ + move_x = min_t(int, clip_x1, 0); + move_y = min_t(int, clip_y1, 0); + + /* actual translate done here */ blits[hit_num].header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN; blits[hit_num].body.destScreenId = unit->unit; - blits[hit_num].body.srcOrigin.x = clips_ptr->x1; - blits[hit_num].body.srcOrigin.y = clips_ptr->y1; - blits[hit_num].body.destRect.left = clip_x1; - blits[hit_num].body.destRect.top = clip_y1; + blits[hit_num].body.srcOrigin.x = clips_ptr->x1 - move_x; + blits[hit_num].body.srcOrigin.y = clips_ptr->y1 - move_y; + blits[hit_num].body.destRect.left = clip_x1 - move_x; + blits[hit_num].body.destRect.top = clip_y1 - move_y; blits[hit_num].body.destRect.right = clip_x2; blits[hit_num].body.destRect.bottom = clip_y2; hit_num++; @@ -1094,6 +1171,7 @@ int vmw_kms_present(struct vmw_private *dev_priv, uint32_t num_clips) { struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS]; + struct drm_clip_rect *tmp; struct drm_crtc *crtc; size_t fifo_size; int i, k, num_units; @@ -1116,11 +1194,18 @@ int vmw_kms_present(struct vmw_private *dev_priv, BUG_ON(surface == NULL); BUG_ON(!clips || !num_clips); + tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL); + if (unlikely(tmp == NULL)) { + DRM_ERROR("Temporary cliprect memory alloc failed.\n"); + return -ENOMEM; + } + fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips; cmd = kmalloc(fifo_size, GFP_KERNEL); if (unlikely(cmd == NULL)) { DRM_ERROR("Failed to allocate temporary fifo memory.\n"); - return -ENOMEM; + ret = -ENOMEM; + goto out_free_tmp; } left = clips->x; @@ -1138,50 +1223,66 @@ int vmw_kms_present(struct vmw_private *dev_priv, /* only need to do this once */ memset(cmd, 0, fifo_size); cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN); - cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header)); + + blits = (SVGASignedRect *)&cmd[1]; cmd->body.srcRect.left = left; cmd->body.srcRect.right = right; cmd->body.srcRect.top = top; cmd->body.srcRect.bottom = bottom; - blits = (SVGASignedRect *)&cmd[1]; for (i = 0; i < num_clips; i++) { - blits[i].left = clips[i].x - left; - blits[i].right = clips[i].x + clips[i].w - left; - blits[i].top = clips[i].y - top; - blits[i].bottom = clips[i].y + clips[i].h - top; + tmp[i].x1 = clips[i].x - left; + tmp[i].x2 = clips[i].x + clips[i].w - left; + tmp[i].y1 = clips[i].y - top; + tmp[i].y2 = clips[i].y + clips[i].h - top; } for (k = 0; k < num_units; k++) { struct vmw_display_unit *unit = units[k]; - int clip_x1 = left + destX - unit->crtc.x; - int clip_y1 = top + destY - unit->crtc.y; - int clip_x2 = right + destX - unit->crtc.x; - int clip_y2 = bottom + destY - unit->crtc.y; + struct vmw_clip_rect clip; + int num; + + clip.x1 = left + destX - unit->crtc.x; + clip.y1 = top + destY - unit->crtc.y; + clip.x2 = right + destX - unit->crtc.x; + clip.y2 = bottom + destY - unit->crtc.y; /* skip any crtcs that misses the clip region */ - if (clip_x1 >= unit->crtc.mode.hdisplay || - clip_y1 >= unit->crtc.mode.vdisplay || - clip_x2 <= 0 || clip_y2 <= 0) + if (clip.x1 >= unit->crtc.mode.hdisplay || + clip.y1 >= unit->crtc.mode.vdisplay || + clip.x2 <= 0 || clip.y2 <= 0) continue; + /* + * In order for the clip rects to be correctly scaled + * the src and dest rects needs to be the same size. + */ + cmd->body.destRect.left = clip.x1; + cmd->body.destRect.right = clip.x2; + cmd->body.destRect.top = clip.y1; + cmd->body.destRect.bottom = clip.y2; + + /* create a clip rect of the crtc in dest coords */ + clip.x2 = unit->crtc.mode.hdisplay - clip.x1; + clip.y2 = unit->crtc.mode.vdisplay - clip.y1; + clip.x1 = 0 - clip.x1; + clip.y1 = 0 - clip.y1; + /* need to reset sid as it is changed by execbuf */ cmd->body.srcImage.sid = sid; - cmd->body.destScreenId = unit->unit; - /* - * The blit command is a lot more resilient then the - * readback command when it comes to clip rects. So its - * okay to go out of bounds. - */ + /* clip and write blits to cmd stream */ + vmw_clip_cliprects(tmp, num_clips, clip, blits, &num); - cmd->body.destRect.left = clip_x1; - cmd->body.destRect.right = clip_x2; - cmd->body.destRect.top = clip_y1; - cmd->body.destRect.bottom = clip_y2; + /* if no cliprects hit skip this */ + if (num == 0) + continue; + /* recalculate package length */ + fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num; + cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header)); ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size, 0, NULL); @@ -1190,6 +1291,8 @@ int vmw_kms_present(struct vmw_private *dev_priv, } kfree(cmd); +out_free_tmp: + kfree(tmp); return ret; } -- cgit v1.2.3 From 12275dd4b747f5d87fa36229774d76bca8e63068 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Mon, 19 Dec 2011 09:30:35 -0500 Subject: Revert "xen/pv-on-hvm kexec: add xs_reset_watches to shutdown watches from old kernel" This reverts commit ddacf5ef684a655abe2bb50c4b2a5b72ae0d5e05. As when booting the kernel under Amazon EC2 as an HVM guest it ends up hanging during startup. Reverting this we loose the fix for kexec booting to the crash kernels. Fixes Canonical BZ #901305 (http://bugs.launchpad.net/bugs/901305) Tested-by: Alessandro Salvatori Reported-by: Stefan Bader Acked-by: Ian Campbell Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/xenbus/xenbus_xs.c | 13 ------------- include/xen/interface/io/xs_wire.h | 3 +-- 2 files changed, 1 insertion(+), 15 deletions(-) diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c index b3b8f2f3ad1..ede860f921d 100644 --- a/drivers/xen/xenbus/xenbus_xs.c +++ b/drivers/xen/xenbus/xenbus_xs.c @@ -621,15 +621,6 @@ static struct xenbus_watch *find_watch(const char *token) return NULL; } -static void xs_reset_watches(void) -{ - int err; - - err = xs_error(xs_single(XBT_NIL, XS_RESET_WATCHES, "", NULL)); - if (err && err != -EEXIST) - printk(KERN_WARNING "xs_reset_watches failed: %d\n", err); -} - /* Register callback to watch this node. */ int register_xenbus_watch(struct xenbus_watch *watch) { @@ -906,9 +897,5 @@ int xs_init(void) if (IS_ERR(task)) return PTR_ERR(task); - /* shutdown watches for kexec boot */ - if (xen_hvm_domain()) - xs_reset_watches(); - return 0; } diff --git a/include/xen/interface/io/xs_wire.h b/include/xen/interface/io/xs_wire.h index f0b6890370b..f6f07aa35af 100644 --- a/include/xen/interface/io/xs_wire.h +++ b/include/xen/interface/io/xs_wire.h @@ -29,8 +29,7 @@ enum xsd_sockmsg_type XS_IS_DOMAIN_INTRODUCED, XS_RESUME, XS_SET_TARGET, - XS_RESTRICT, - XS_RESET_WATCHES + XS_RESTRICT }; #define XS_WRITE_NONE "NONE" -- cgit v1.2.3 From 913050b91eb94f194392dd797b1ff3779f606ac0 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Mon, 19 Dec 2011 16:38:30 +0100 Subject: oprofile: Fix uninitialized memory access when writing to writing to oprofilefs If oprofilefs_ulong_from_user() is called with count equals zero, *val remains unchanged. Depending on the implementation it might be uninitialized. Change oprofilefs_ulong_from_user()'s interface to return count on success. Thus, we are able to return early if count equals zero which avoids using *val uninitialized. Fixing all users of oprofilefs_ulong_ from_user(). This follows write syscall implementation when count is zero: "If count is zero ... [and if] no errors are detected, 0 will be returned without causing any other effect." (man 2 write) Reported-By: Mike Waychison Signed-off-by: Robert Richter Cc: Andrew Morton Cc: Cc: oprofile-list Link: http://lkml.kernel.org/r/20111219153830.GH16765@erda.amd.com Signed-off-by: Ingo Molnar --- arch/s390/oprofile/init.c | 2 +- drivers/oprofile/oprofile_files.c | 7 ++++--- drivers/oprofile/oprofilefs.c | 11 +++++++++-- 3 files changed, 14 insertions(+), 6 deletions(-) diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c index 6efc18b5e60..bd58b72454c 100644 --- a/arch/s390/oprofile/init.c +++ b/arch/s390/oprofile/init.c @@ -88,7 +88,7 @@ static ssize_t hwsampler_write(struct file *file, char const __user *buf, return -EINVAL; retval = oprofilefs_ulong_from_user(&val, buf, count); - if (retval) + if (retval <= 0) return retval; if (oprofile_started) diff --git a/drivers/oprofile/oprofile_files.c b/drivers/oprofile/oprofile_files.c index 89f63456646..84a208dbed9 100644 --- a/drivers/oprofile/oprofile_files.c +++ b/drivers/oprofile/oprofile_files.c @@ -45,7 +45,7 @@ static ssize_t timeout_write(struct file *file, char const __user *buf, return -EINVAL; retval = oprofilefs_ulong_from_user(&val, buf, count); - if (retval) + if (retval <= 0) return retval; retval = oprofile_set_timeout(val); @@ -84,7 +84,7 @@ static ssize_t depth_write(struct file *file, char const __user *buf, size_t cou return -EINVAL; retval = oprofilefs_ulong_from_user(&val, buf, count); - if (retval) + if (retval <= 0) return retval; retval = oprofile_set_ulong(&oprofile_backtrace_depth, val); @@ -141,9 +141,10 @@ static ssize_t enable_write(struct file *file, char const __user *buf, size_t co return -EINVAL; retval = oprofilefs_ulong_from_user(&val, buf, count); - if (retval) + if (retval <= 0) return retval; + retval = 0; if (val) retval = oprofile_start(); else diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c index d0de6cc2d7a..2f0aa0f700e 100644 --- a/drivers/oprofile/oprofilefs.c +++ b/drivers/oprofile/oprofilefs.c @@ -60,6 +60,13 @@ ssize_t oprofilefs_ulong_to_user(unsigned long val, char __user *buf, size_t cou } +/* + * Note: If oprofilefs_ulong_from_user() returns 0, then *val remains + * unchanged and might be uninitialized. This follows write syscall + * implementation when count is zero: "If count is zero ... [and if] + * no errors are detected, 0 will be returned without causing any + * other effect." (man 2 write) + */ int oprofilefs_ulong_from_user(unsigned long *val, char const __user *buf, size_t count) { char tmpbuf[TMPBUFSIZE]; @@ -79,7 +86,7 @@ int oprofilefs_ulong_from_user(unsigned long *val, char const __user *buf, size_ raw_spin_lock_irqsave(&oprofilefs_lock, flags); *val = simple_strtoul(tmpbuf, NULL, 0); raw_spin_unlock_irqrestore(&oprofilefs_lock, flags); - return 0; + return count; } @@ -99,7 +106,7 @@ static ssize_t ulong_write_file(struct file *file, char const __user *buf, size_ return -EINVAL; retval = oprofilefs_ulong_from_user(&value, buf, count); - if (retval) + if (retval <= 0) return retval; retval = oprofile_set_ulong(file->private_data, value); -- cgit v1.2.3 From e0197aae59e55c06db172bfbe1a1cdb8c0e1cab3 Mon Sep 17 00:00:00 2001 From: Mandeep Singh Baines Date: Thu, 15 Dec 2011 11:36:43 -0800 Subject: cgroups: fix a css_set not found bug in cgroup_attach_proc There is a BUG when migrating a PF_EXITING proc. Since css_set_prefetch() is not called for the PF_EXITING case, find_existing_css_set() will return NULL inside cgroup_task_migrate() causing a BUG. This bug is easy to reproduce. Create a zombie and echo its pid to cgroup.procs. $ cat zombie.c \#include int main() { if (fork()) pause(); return 0; } $ We are hitting this bug pretty regularly on ChromeOS. This bug is already fixed by Tejun Heo's cgroup patchset which is targetted for the next merge window: https://lkml.org/lkml/2011/11/1/356 I've create a smaller patch here which just fixes this bug so that a fix can be merged into the current release and stable. Signed-off-by: Mandeep Singh Baines Downstream-Bug-Report: http://crosbug.com/23953 Reviewed-by: Li Zefan Signed-off-by: Tejun Heo Cc: containers@lists.linux-foundation.org Cc: cgroups@vger.kernel.org Cc: stable@kernel.org Cc: KAMEZAWA Hiroyuki Cc: Frederic Weisbecker Cc: Oleg Nesterov Cc: Andrew Morton Cc: Paul Menage Cc: Olof Johansson --- kernel/cgroup.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index d9d5648f3cd..a184470cf9b 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -2098,11 +2098,6 @@ int cgroup_attach_proc(struct cgroup *cgrp, struct task_struct *leader) continue; /* get old css_set pointer */ task_lock(tsk); - if (tsk->flags & PF_EXITING) { - /* ignore this task if it's going away */ - task_unlock(tsk); - continue; - } oldcg = tsk->cgroups; get_css_set(oldcg); task_unlock(tsk); -- cgit v1.2.3 From 04ded1672402577cd3f390c764f3046cc704a42a Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Tue, 6 Dec 2011 21:17:11 +0000 Subject: RDMA/cma: Verify private data length private_data_len is defined as a u8. If the user specifies a large private_data size (> 220 bytes), we will calculate a total length that exceeds 255, resulting in private_data_len wrapping back to 0. This can lead to overwriting random kernel memory. Avoid this by verifying that the resulting size fits into a u8. Reported-by: B. Thery Addresses: Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- drivers/infiniband/core/cma.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 75ff821c0af..d0d4aa9f480 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -2513,6 +2513,9 @@ static int cma_resolve_ib_udp(struct rdma_id_private *id_priv, req.private_data_len = sizeof(struct cma_hdr) + conn_param->private_data_len; + if (req.private_data_len < conn_param->private_data_len) + return -EINVAL; + req.private_data = kzalloc(req.private_data_len, GFP_ATOMIC); if (!req.private_data) return -ENOMEM; @@ -2562,6 +2565,9 @@ static int cma_connect_ib(struct rdma_id_private *id_priv, memset(&req, 0, sizeof req); offset = cma_user_data_offset(id_priv->id.ps); req.private_data_len = offset + conn_param->private_data_len; + if (req.private_data_len < conn_param->private_data_len) + return -EINVAL; + private_data = kzalloc(req.private_data_len, GFP_ATOMIC); if (!private_data) return -ENOMEM; -- cgit v1.2.3 From 29d1b16145e78e0f4af54751965c4a09e83bd872 Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Fri, 2 Dec 2011 12:41:30 -0500 Subject: IB/qib: Correct sense on freectxts increment and decrement Commit 53ab1c64983 ("IB/qib: Correct nfreectxts for multiple HCAs") reversed the increments and decrements of dd->nfreectxts. Fix it. Reviewed-by: Ram Vepa Signed-off-by: Mike Marciniszyn Signed-off-by: Roland Dreier --- drivers/infiniband/hw/qib/qib_file_ops.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c index 574600ef5b4..a7403248d83 100644 --- a/drivers/infiniband/hw/qib/qib_file_ops.c +++ b/drivers/infiniband/hw/qib/qib_file_ops.c @@ -1285,7 +1285,7 @@ static int setup_ctxt(struct qib_pportdata *ppd, int ctxt, strlcpy(rcd->comm, current->comm, sizeof(rcd->comm)); ctxt_fp(fp) = rcd; qib_stats.sps_ctxts++; - dd->freectxts++; + dd->freectxts--; ret = 0; goto bail; @@ -1794,7 +1794,7 @@ static int qib_close(struct inode *in, struct file *fp) if (dd->pageshadow) unlock_expected_tids(rcd); qib_stats.sps_ctxts--; - dd->freectxts--; + dd->freectxts++; } mutex_unlock(&qib_mutex); -- cgit v1.2.3 From 96f1f05af76b601ab21a7dc603ae0a1cea4efc3d Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Fri, 16 Dec 2011 07:53:18 -0800 Subject: iwlwifi: update SCD BC table for all SCD queues Since we configure all the queues as CHAINABLE, we need to update the byte count for all the queues, not only the AGGREGATABLE ones. Not doing so can confuse the SCD and make the fw assert. Cc: stable@vger.kernel.org Signed-off-by: Emmanuel Grumbach Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-trans-pcie.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c index ce918980e97..5f17ab8e76b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c @@ -1197,9 +1197,7 @@ static int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, iwl_print_hex_dump(trans, IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len); /* Set up entry for this TFD in Tx byte-count array */ - if (is_agg) - iwl_trans_txq_update_byte_cnt_tbl(trans, txq, - le16_to_cpu(tx_cmd->len)); + iwl_trans_txq_update_byte_cnt_tbl(trans, txq, le16_to_cpu(tx_cmd->len)); dma_sync_single_for_device(bus(trans)->dev, txcmd_phys, firstlen, DMA_BIDIRECTIONAL); -- cgit v1.2.3 From c070e38e4ee005f55895df177a9e14d90d6204b3 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Wed, 16 Nov 2011 10:54:02 -0300 Subject: [media] omap3isp: Fix crash caused by subdevs now having a pointer to devnodes Commit 3e0ec41c5c5ee14e27f65e28d4a616de34f59a97 ("V4L: dynamically allocate video_device nodes in subdevices") makes the embedding video_device directly. Fix accesses to the devnode accordingly. Signed-off-by: Laurent Pinchart Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/omap3isp/ispccdc.c | 2 +- drivers/media/video/omap3isp/ispstat.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/video/omap3isp/ispccdc.c b/drivers/media/video/omap3isp/ispccdc.c index b0b0fa5a357..54a4a3f22e2 100644 --- a/drivers/media/video/omap3isp/ispccdc.c +++ b/drivers/media/video/omap3isp/ispccdc.c @@ -1408,7 +1408,7 @@ static void ccdc_hs_vs_isr(struct isp_ccdc_device *ccdc) { struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->video_out.video.entity); - struct video_device *vdev = &ccdc->subdev.devnode; + struct video_device *vdev = ccdc->subdev.devnode; struct v4l2_event event; memset(&event, 0, sizeof(event)); diff --git a/drivers/media/video/omap3isp/ispstat.c b/drivers/media/video/omap3isp/ispstat.c index 68d539456c5..bc0b2c7349b 100644 --- a/drivers/media/video/omap3isp/ispstat.c +++ b/drivers/media/video/omap3isp/ispstat.c @@ -496,7 +496,7 @@ static int isp_stat_bufs_alloc(struct ispstat *stat, u32 size) static void isp_stat_queue_event(struct ispstat *stat, int err) { - struct video_device *vdev = &stat->subdev.devnode; + struct video_device *vdev = stat->subdev.devnode; struct v4l2_event event; struct omap3isp_stat_event_status *status = (void *)event.u.data; -- cgit v1.2.3 From a03ffcf873fe0f2565386ca8ef832144c42e67fa Mon Sep 17 00:00:00 2001 From: Markus Kötter Date: Sat, 17 Dec 2011 11:39:08 +0000 Subject: net: bpf_jit: fix an off-one bug in x86_64 cond jump target MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit x86 jump instruction size is 2 or 5 bytes (near/long jump), not 2 or 6 bytes. In case a conditional jump is followed by a long jump, conditional jump target is one byte past the start of target instruction. Signed-off-by: Markus Kötter Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- arch/x86/net/bpf_jit_comp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c index bfab3fa10ed..7b65f752c5f 100644 --- a/arch/x86/net/bpf_jit_comp.c +++ b/arch/x86/net/bpf_jit_comp.c @@ -568,8 +568,8 @@ cond_branch: f_offset = addrs[i + filter[i].jf] - addrs[i]; break; } if (filter[i].jt != 0) { - if (filter[i].jf) - t_offset += is_near(f_offset) ? 2 : 6; + if (filter[i].jf && f_offset) + t_offset += is_near(f_offset) ? 2 : 5; EMIT_COND_JMP(t_op, t_offset); if (filter[i].jf) EMIT_JMP(f_offset); -- cgit v1.2.3 From 9cef310fcdee12b49b8b4c96fd8f611c8873d284 Mon Sep 17 00:00:00 2001 From: Alex Juncu Date: Thu, 15 Dec 2011 23:01:25 +0000 Subject: llc: llc_cmsg_rcv was getting called after sk_eat_skb. Received non stream protocol packets were calling llc_cmsg_rcv that used a skb after that skb was released by sk_eat_skb. This caused received STP packets to generate kernel panics. Signed-off-by: Alexandru Juncu Signed-off-by: Kunjan Naik Signed-off-by: David S. Miller --- net/llc/af_llc.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index dfd3a648a55..a18e6c3d36e 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -833,15 +833,15 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock, copied += used; len -= used; + /* For non stream protcols we get one packet per recvmsg call */ + if (sk->sk_type != SOCK_STREAM) + goto copy_uaddr; + if (!(flags & MSG_PEEK)) { sk_eat_skb(sk, skb, 0); *seq = 0; } - /* For non stream protcols we get one packet per recvmsg call */ - if (sk->sk_type != SOCK_STREAM) - goto copy_uaddr; - /* Partial read */ if (used + offset < skb->len) continue; @@ -857,6 +857,12 @@ copy_uaddr: } if (llc_sk(sk)->cmsg_flags) llc_cmsg_rcv(msg, skb); + + if (!(flags & MSG_PEEK)) { + sk_eat_skb(sk, skb, 0); + *seq = 0; + } + goto out; } -- cgit v1.2.3 From 2ca6cf06d988fea21e812a86be79353352677c9c Mon Sep 17 00:00:00 2001 From: françois romieu Date: Thu, 15 Dec 2011 08:37:43 +0000 Subject: r8169: fix Config2 MSIEnable bit setting. The MSIEnable bit is only available for the 8169. Avoid Config2 writes for the post-8169 8168 and 810x. Reported-by: Su Kang Yin Signed-off-by: Francois Romieu Cc: Hayes Wang Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 67bf0781999..c8f47f17186 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -477,7 +477,6 @@ enum rtl_register_content { /* Config1 register p.24 */ LEDS1 = (1 << 7), LEDS0 = (1 << 6), - MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */ Speed_down = (1 << 4), MEMMAP = (1 << 3), IOMAP = (1 << 2), @@ -485,6 +484,7 @@ enum rtl_register_content { PMEnable = (1 << 0), /* Power Management Enable */ /* Config2 register p. 25 */ + MSIEnable = (1 << 5), /* 8169 only. Reserved in the 8168. */ PCI_Clock_66MHz = 0x01, PCI_Clock_33MHz = 0x00, @@ -3426,22 +3426,24 @@ static const struct rtl_cfg_info { }; /* Cfg9346_Unlock assumed. */ -static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr, +static unsigned rtl_try_msi(struct rtl8169_private *tp, const struct rtl_cfg_info *cfg) { + void __iomem *ioaddr = tp->mmio_addr; unsigned msi = 0; u8 cfg2; cfg2 = RTL_R8(Config2) & ~MSIEnable; if (cfg->features & RTL_FEATURE_MSI) { - if (pci_enable_msi(pdev)) { - dev_info(&pdev->dev, "no MSI. Back to INTx.\n"); + if (pci_enable_msi(tp->pci_dev)) { + netif_info(tp, hw, tp->dev, "no MSI. Back to INTx.\n"); } else { cfg2 |= MSIEnable; msi = RTL_FEATURE_MSI; } } - RTL_W8(Config2, cfg2); + if (tp->mac_version <= RTL_GIGA_MAC_VER_06) + RTL_W8(Config2, cfg2); return msi; } @@ -4077,7 +4079,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) tp->features |= RTL_FEATURE_WOL; if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0) tp->features |= RTL_FEATURE_WOL; - tp->features |= rtl_try_msi(pdev, ioaddr, cfg); + tp->features |= rtl_try_msi(tp, cfg); RTL_W8(Cfg9346, Cfg9346_Lock); if (rtl_tbi_enabled(tp)) { -- cgit v1.2.3 From 13f541c10b30fc6529200d7f9a0073217709622f Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Mon, 19 Dec 2011 22:07:58 +0100 Subject: x86, dumpstack: Fix code bytes breakage due to missing KERN_CONT When printing the code bytes in show_registers(), the markers around the byte at the fault address could make the printk() format string look like a valid log level and facility code. This would prevent this byte from being printed and result in a spurious newline: [ 7555.765589] Code: 8b 32 e9 94 00 00 00 81 7d 00 ff 00 00 00 0f 87 96 00 00 00 48 8b 83 c0 00 00 00 44 89 e2 44 89 e6 48 89 df 48 8b 80 d8 02 00 00 [ 7555.765683] 8b 48 28 48 89 d0 81 e2 ff 0f 00 00 48 c1 e8 0c 48 c1 e0 04 Add KERN_CONT where needed, and elsewhere in show_registers() for consistency. Signed-off-by: Clemens Ladisch Link: http://lkml.kernel.org/r/4EEFA7AE.9020407@ladisch.de Signed-off-by: H. Peter Anvin --- arch/x86/kernel/dumpstack_32.c | 8 ++++---- arch/x86/kernel/dumpstack_64.c | 8 ++++---- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c index 3b97a80ce32..c99f9ed013d 100644 --- a/arch/x86/kernel/dumpstack_32.c +++ b/arch/x86/kernel/dumpstack_32.c @@ -116,16 +116,16 @@ void show_registers(struct pt_regs *regs) for (i = 0; i < code_len; i++, ip++) { if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) { - printk(" Bad EIP value."); + printk(KERN_CONT " Bad EIP value."); break; } if (ip == (u8 *)regs->ip) - printk("<%02x> ", c); + printk(KERN_CONT "<%02x> ", c); else - printk("%02x ", c); + printk(KERN_CONT "%02x ", c); } } - printk("\n"); + printk(KERN_CONT "\n"); } int is_valid_bugaddr(unsigned long ip) diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c index 19853ad8afc..6d728d9284b 100644 --- a/arch/x86/kernel/dumpstack_64.c +++ b/arch/x86/kernel/dumpstack_64.c @@ -284,16 +284,16 @@ void show_registers(struct pt_regs *regs) for (i = 0; i < code_len; i++, ip++) { if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) { - printk(" Bad RIP value."); + printk(KERN_CONT " Bad RIP value."); break; } if (ip == (u8 *)regs->ip) - printk("<%02x> ", c); + printk(KERN_CONT "<%02x> ", c); else - printk("%02x ", c); + printk(KERN_CONT "%02x ", c); } } - printk("\n"); + printk(KERN_CONT "\n"); } int is_valid_bugaddr(unsigned long ip) -- cgit v1.2.3 From 2692ba61a82203404abd7dd2a027bda962861f74 Mon Sep 17 00:00:00 2001 From: Xi Wang Date: Fri, 16 Dec 2011 12:44:15 +0000 Subject: sctp: fix incorrect overflow check on autoclose Commit 8ffd3208 voids the previous patches f6778aab and 810c0719 for limiting the autoclose value. If userspace passes in -1 on 32-bit platform, the overflow check didn't work and autoclose would be set to 0xffffffff. This patch defines a max_autoclose (in seconds) for limiting the value and exposes it through sysctl, with the following intentions. 1) Avoid overflowing autoclose * HZ. 2) Keep the default autoclose bound consistent across 32- and 64-bit platforms (INT_MAX / HZ in this patch). 3) Keep the autoclose value consistent between setsockopt() and getsockopt() calls. Suggested-by: Vlad Yasevich Signed-off-by: Xi Wang Signed-off-by: David S. Miller --- include/net/sctp/structs.h | 4 ++++ net/sctp/associola.c | 2 +- net/sctp/protocol.c | 3 +++ net/sctp/socket.c | 2 -- net/sctp/sysctl.c | 13 +++++++++++++ 5 files changed, 21 insertions(+), 3 deletions(-) diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index e90e7a9935d..a15432da27c 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -241,6 +241,9 @@ extern struct sctp_globals { * bits is an indicator of when to send and window update SACK. */ int rwnd_update_shift; + + /* Threshold for autoclose timeout, in seconds. */ + unsigned long max_autoclose; } sctp_globals; #define sctp_rto_initial (sctp_globals.rto_initial) @@ -281,6 +284,7 @@ extern struct sctp_globals { #define sctp_auth_enable (sctp_globals.auth_enable) #define sctp_checksum_disable (sctp_globals.checksum_disable) #define sctp_rwnd_upd_shift (sctp_globals.rwnd_update_shift) +#define sctp_max_autoclose (sctp_globals.max_autoclose) /* SCTP Socket type: UDP or TCP style. */ typedef enum { diff --git a/net/sctp/associola.c b/net/sctp/associola.c index 152b5b3c3ff..acd2edbc073 100644 --- a/net/sctp/associola.c +++ b/net/sctp/associola.c @@ -173,7 +173,7 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a asoc->timeouts[SCTP_EVENT_TIMEOUT_HEARTBEAT] = 0; asoc->timeouts[SCTP_EVENT_TIMEOUT_SACK] = asoc->sackdelay; asoc->timeouts[SCTP_EVENT_TIMEOUT_AUTOCLOSE] = - (unsigned long)sp->autoclose * HZ; + min_t(unsigned long, sp->autoclose, sctp_max_autoclose) * HZ; /* Initializes the timers */ for (i = SCTP_EVENT_TIMEOUT_NONE; i < SCTP_NUM_TIMEOUT_TYPES; ++i) diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index 61b9fca5a17..6f6ad868683 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -1285,6 +1285,9 @@ SCTP_STATIC __init int sctp_init(void) sctp_max_instreams = SCTP_DEFAULT_INSTREAMS; sctp_max_outstreams = SCTP_DEFAULT_OUTSTREAMS; + /* Initialize maximum autoclose timeout. */ + sctp_max_autoclose = INT_MAX / HZ; + /* Initialize handle used for association ids. */ idr_init(&sctp_assocs_id); diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 13bf5fcdbff..54a7cd2fdd7 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -2200,8 +2200,6 @@ static int sctp_setsockopt_autoclose(struct sock *sk, char __user *optval, return -EINVAL; if (copy_from_user(&sp->autoclose, optval, optlen)) return -EFAULT; - /* make sure it won't exceed MAX_SCHEDULE_TIMEOUT */ - sp->autoclose = min_t(long, sp->autoclose, MAX_SCHEDULE_TIMEOUT / HZ); return 0; } diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c index 6b3952961b8..60ffbd067ff 100644 --- a/net/sctp/sysctl.c +++ b/net/sctp/sysctl.c @@ -53,6 +53,10 @@ static int sack_timer_min = 1; static int sack_timer_max = 500; static int addr_scope_max = 3; /* check sctp_scope_policy_t in include/net/sctp/constants.h for max entries */ static int rwnd_scale_max = 16; +static unsigned long max_autoclose_min = 0; +static unsigned long max_autoclose_max = + (MAX_SCHEDULE_TIMEOUT / HZ > UINT_MAX) + ? UINT_MAX : MAX_SCHEDULE_TIMEOUT / HZ; extern long sysctl_sctp_mem[3]; extern int sysctl_sctp_rmem[3]; @@ -258,6 +262,15 @@ static ctl_table sctp_table[] = { .extra1 = &one, .extra2 = &rwnd_scale_max, }, + { + .procname = "max_autoclose", + .data = &sctp_max_autoclose, + .maxlen = sizeof(unsigned long), + .mode = 0644, + .proc_handler = &proc_doulongvec_minmax, + .extra1 = &max_autoclose_min, + .extra2 = &max_autoclose_max, + }, { /* sentinel */ } }; -- cgit v1.2.3 From 7746ab0abb512826540a9a0c917519d11a7bf392 Mon Sep 17 00:00:00 2001 From: Ilya Yanok Date: Sun, 18 Dec 2011 10:02:04 +0000 Subject: davinci-cpdma: fix locking issue in cpdma_chan_stop Free the channel lock before calling __cpdma_chan_process to prevent dead lock. Signed-off-by: Ilya Yanok Tested-by: Ameya Palande <2ameya@gmail.com> Signed-off-by: David S. Miller --- drivers/net/ethernet/ti/davinci_cpdma.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c index dca9d3369cd..c97d2f59085 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.c +++ b/drivers/net/ethernet/ti/davinci_cpdma.c @@ -836,11 +836,13 @@ int cpdma_chan_stop(struct cpdma_chan *chan) chan_write(chan, cp, CPDMA_TEARDOWN_VALUE); /* handle completed packets */ + spin_unlock_irqrestore(&chan->lock, flags); do { ret = __cpdma_chan_process(chan); if (ret < 0) break; } while ((ret & CPDMA_DESC_TD_COMPLETE) == 0); + spin_lock_irqsave(&chan->lock, flags); /* remaining packets haven't been tx/rx'ed, clean them up */ while (chan->head) { -- cgit v1.2.3 From e8303a3b2196272c3eb994d0fd1a189a958a2bdd Mon Sep 17 00:00:00 2001 From: Aurelien Jacobs Date: Fri, 16 Dec 2011 10:49:22 +0000 Subject: asix: new device id Adds the device id needed for the USB Ethernet Adapter delivered by ASUS with their Zenbook. Signed-off-by: Aurelien Jacobs Acked-by: Grant Grundler Signed-off-by: David S. Miller --- drivers/net/usb/asix.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c index e6fed4d4cb7..e95f0e60a9b 100644 --- a/drivers/net/usb/asix.c +++ b/drivers/net/usb/asix.c @@ -1655,6 +1655,10 @@ static const struct usb_device_id products [] = { // ASIX 88772a USB_DEVICE(0x0db0, 0xa877), .driver_info = (unsigned long) &ax88772_info, +}, { + // Asus USB Ethernet Adapter + USB_DEVICE (0x0b95, 0x7e2b), + .driver_info = (unsigned long) &ax88772_info, }, { }, // END }; -- cgit v1.2.3 From 29495aa04a30c21565243c5b9c028510446d242c Mon Sep 17 00:00:00 2001 From: Manuel Lauss Date: Thu, 3 Nov 2011 11:09:45 +0100 Subject: mmc: sdhci: remove "state" argument from sdhci_suspend_host Drop the "state" argument from sdhci_suspend_host. Its only user is the PCI glue; this allows to move all SDHCI glues to use dev_pm_ops instead. Signed-off-by: Manuel Lauss Acked-by: Adrian Hunter Signed-off-by: Chris Ball --- drivers/mmc/host/sdhci-cns3xxx.c | 5 +---- drivers/mmc/host/sdhci-dove.c | 5 +---- drivers/mmc/host/sdhci-esdhc-imx.c | 5 +---- drivers/mmc/host/sdhci-of-esdhc.c | 5 +---- drivers/mmc/host/sdhci-of-hlwd.c | 5 +---- drivers/mmc/host/sdhci-pci.c | 26 +++++++++++++------------- drivers/mmc/host/sdhci-pltfm.c | 18 +++++++++++------- drivers/mmc/host/sdhci-pltfm.h | 6 ++++-- drivers/mmc/host/sdhci-pxav2.c | 5 +---- drivers/mmc/host/sdhci-pxav3.c | 5 +---- drivers/mmc/host/sdhci-s3c.c | 21 ++++++++++++++------- drivers/mmc/host/sdhci-tegra.c | 5 +---- drivers/mmc/host/sdhci.c | 2 +- drivers/mmc/host/sdhci.h | 2 +- 14 files changed, 52 insertions(+), 63 deletions(-) diff --git a/drivers/mmc/host/sdhci-cns3xxx.c b/drivers/mmc/host/sdhci-cns3xxx.c index 87b6f079b6e..b4257e70061 100644 --- a/drivers/mmc/host/sdhci-cns3xxx.c +++ b/drivers/mmc/host/sdhci-cns3xxx.c @@ -109,13 +109,10 @@ static struct platform_driver sdhci_cns3xxx_driver = { .driver = { .name = "sdhci-cns3xxx", .owner = THIS_MODULE, + .pm = SDHCI_PLTFM_PMOPS, }, .probe = sdhci_cns3xxx_probe, .remove = __devexit_p(sdhci_cns3xxx_remove), -#ifdef CONFIG_PM - .suspend = sdhci_pltfm_suspend, - .resume = sdhci_pltfm_resume, -#endif }; static int __init sdhci_cns3xxx_init(void) diff --git a/drivers/mmc/host/sdhci-dove.c b/drivers/mmc/host/sdhci-dove.c index f2d29dca442..a81312c91f7 100644 --- a/drivers/mmc/host/sdhci-dove.c +++ b/drivers/mmc/host/sdhci-dove.c @@ -82,13 +82,10 @@ static struct platform_driver sdhci_dove_driver = { .driver = { .name = "sdhci-dove", .owner = THIS_MODULE, + .pm = SDHCI_PLTFM_PMOPS, }, .probe = sdhci_dove_probe, .remove = __devexit_p(sdhci_dove_remove), -#ifdef CONFIG_PM - .suspend = sdhci_pltfm_suspend, - .resume = sdhci_pltfm_resume, -#endif }; static int __init sdhci_dove_init(void) diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 4b976f00ea8..38ebc4ea259 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -599,14 +599,11 @@ static struct platform_driver sdhci_esdhc_imx_driver = { .name = "sdhci-esdhc-imx", .owner = THIS_MODULE, .of_match_table = imx_esdhc_dt_ids, + .pm = SDHCI_PLTFM_PMOPS, }, .id_table = imx_esdhc_devtype, .probe = sdhci_esdhc_imx_probe, .remove = __devexit_p(sdhci_esdhc_imx_remove), -#ifdef CONFIG_PM - .suspend = sdhci_pltfm_suspend, - .resume = sdhci_pltfm_resume, -#endif }; static int __init sdhci_esdhc_imx_init(void) diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index 59e9d003e58..01e5f627e0f 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -125,13 +125,10 @@ static struct platform_driver sdhci_esdhc_driver = { .name = "sdhci-esdhc", .owner = THIS_MODULE, .of_match_table = sdhci_esdhc_of_match, + .pm = SDHCI_PLTFM_PMOPS, }, .probe = sdhci_esdhc_probe, .remove = __devexit_p(sdhci_esdhc_remove), -#ifdef CONFIG_PM - .suspend = sdhci_pltfm_suspend, - .resume = sdhci_pltfm_resume, -#endif }; static int __init sdhci_esdhc_init(void) diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c index 9b0d794a4f6..3619adc7d9f 100644 --- a/drivers/mmc/host/sdhci-of-hlwd.c +++ b/drivers/mmc/host/sdhci-of-hlwd.c @@ -87,13 +87,10 @@ static struct platform_driver sdhci_hlwd_driver = { .name = "sdhci-hlwd", .owner = THIS_MODULE, .of_match_table = sdhci_hlwd_of_match, + .pm = SDHCI_PLTFM_PMOPS, }, .probe = sdhci_hlwd_probe, .remove = __devexit_p(sdhci_hlwd_remove), -#ifdef CONFIG_PM - .suspend = sdhci_pltfm_suspend, - .resume = sdhci_pltfm_resume, -#endif }; static int __init sdhci_hlwd_init(void) diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index d833d9c2f7e..6878a94626b 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -54,8 +54,7 @@ struct sdhci_pci_fixes { int (*probe_slot) (struct sdhci_pci_slot *); void (*remove_slot) (struct sdhci_pci_slot *, int); - int (*suspend) (struct sdhci_pci_chip *, - pm_message_t); + int (*suspend) (struct sdhci_pci_chip *); int (*resume) (struct sdhci_pci_chip *); }; @@ -549,7 +548,7 @@ static void jmicron_remove_slot(struct sdhci_pci_slot *slot, int dead) jmicron_enable_mmc(slot->host, 0); } -static int jmicron_suspend(struct sdhci_pci_chip *chip, pm_message_t state) +static int jmicron_suspend(struct sdhci_pci_chip *chip) { int i; @@ -993,8 +992,9 @@ static struct sdhci_ops sdhci_pci_ops = { #ifdef CONFIG_PM -static int sdhci_pci_suspend(struct pci_dev *pdev, pm_message_t state) +static int sdhci_pci_suspend(struct device *dev) { + struct pci_dev *pdev = to_pci_dev(dev); struct sdhci_pci_chip *chip; struct sdhci_pci_slot *slot; mmc_pm_flag_t slot_pm_flags; @@ -1010,7 +1010,7 @@ static int sdhci_pci_suspend(struct pci_dev *pdev, pm_message_t state) if (!slot) continue; - ret = sdhci_suspend_host(slot->host, state); + ret = sdhci_suspend_host(slot->host); if (ret) { for (i--; i >= 0; i--) @@ -1026,7 +1026,7 @@ static int sdhci_pci_suspend(struct pci_dev *pdev, pm_message_t state) } if (chip->fixes && chip->fixes->suspend) { - ret = chip->fixes->suspend(chip, state); + ret = chip->fixes->suspend(chip); if (ret) { for (i = chip->num_slots - 1; i >= 0; i--) sdhci_resume_host(chip->slots[i]->host); @@ -1042,16 +1042,17 @@ static int sdhci_pci_suspend(struct pci_dev *pdev, pm_message_t state) } pci_set_power_state(pdev, PCI_D3hot); } else { - pci_enable_wake(pdev, pci_choose_state(pdev, state), 0); + pci_enable_wake(pdev, PCI_D3hot, 0); pci_disable_device(pdev); - pci_set_power_state(pdev, pci_choose_state(pdev, state)); + pci_set_power_state(pdev, PCI_D3hot); } return 0; } -static int sdhci_pci_resume(struct pci_dev *pdev) +static int sdhci_pci_resume(struct device *dev) { + struct pci_dev *pdev = to_pci_dev(dev); struct sdhci_pci_chip *chip; struct sdhci_pci_slot *slot; int i, ret; @@ -1099,7 +1100,6 @@ static int sdhci_pci_runtime_suspend(struct device *dev) struct pci_dev *pdev = container_of(dev, struct pci_dev, dev); struct sdhci_pci_chip *chip; struct sdhci_pci_slot *slot; - pm_message_t state = { .event = PM_EVENT_SUSPEND }; int i, ret; chip = pci_get_drvdata(pdev); @@ -1121,7 +1121,7 @@ static int sdhci_pci_runtime_suspend(struct device *dev) } if (chip->fixes && chip->fixes->suspend) { - ret = chip->fixes->suspend(chip, state); + ret = chip->fixes->suspend(chip); if (ret) { for (i = chip->num_slots - 1; i >= 0; i--) sdhci_runtime_resume_host(chip->slots[i]->host); @@ -1176,6 +1176,8 @@ static int sdhci_pci_runtime_idle(struct device *dev) #endif static const struct dev_pm_ops sdhci_pci_pm_ops = { + .suspend = sdhci_pci_suspend, + .resume = sdhci_pci_resume, .runtime_suspend = sdhci_pci_runtime_suspend, .runtime_resume = sdhci_pci_runtime_resume, .runtime_idle = sdhci_pci_runtime_idle, @@ -1428,8 +1430,6 @@ static struct pci_driver sdhci_driver = { .id_table = pci_ids, .probe = sdhci_pci_probe, .remove = __devexit_p(sdhci_pci_remove), - .suspend = sdhci_pci_suspend, - .resume = sdhci_pci_resume, .driver = { .pm = &sdhci_pci_pm_ops }, diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c index a9e12ea0558..03970bcb349 100644 --- a/drivers/mmc/host/sdhci-pltfm.c +++ b/drivers/mmc/host/sdhci-pltfm.c @@ -194,21 +194,25 @@ int sdhci_pltfm_unregister(struct platform_device *pdev) EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister); #ifdef CONFIG_PM -int sdhci_pltfm_suspend(struct platform_device *dev, pm_message_t state) +static int sdhci_pltfm_suspend(struct device *dev) { - struct sdhci_host *host = platform_get_drvdata(dev); + struct sdhci_host *host = dev_get_drvdata(dev); - return sdhci_suspend_host(host, state); + return sdhci_suspend_host(host); } -EXPORT_SYMBOL_GPL(sdhci_pltfm_suspend); -int sdhci_pltfm_resume(struct platform_device *dev) +static int sdhci_pltfm_resume(struct device *dev) { - struct sdhci_host *host = platform_get_drvdata(dev); + struct sdhci_host *host = dev_get_drvdata(dev); return sdhci_resume_host(host); } -EXPORT_SYMBOL_GPL(sdhci_pltfm_resume); + +const struct dev_pm_ops sdhci_pltfm_pmops = { + .suspend = sdhci_pltfm_suspend, + .resume = sdhci_pltfm_resume, +}; +EXPORT_SYMBOL_GPL(sdhci_pltfm_pmops); #endif /* CONFIG_PM */ static int __init sdhci_pltfm_drv_init(void) diff --git a/drivers/mmc/host/sdhci-pltfm.h b/drivers/mmc/host/sdhci-pltfm.h index 3a9fc3f4084..37e0e184a0b 100644 --- a/drivers/mmc/host/sdhci-pltfm.h +++ b/drivers/mmc/host/sdhci-pltfm.h @@ -99,8 +99,10 @@ extern int sdhci_pltfm_register(struct platform_device *pdev, extern int sdhci_pltfm_unregister(struct platform_device *pdev); #ifdef CONFIG_PM -extern int sdhci_pltfm_suspend(struct platform_device *dev, pm_message_t state); -extern int sdhci_pltfm_resume(struct platform_device *dev); +extern const struct dev_pm_ops sdhci_pltfm_pmops; +#define SDHCI_PLTFM_PMOPS (&sdhci_pltfm_pmops) +#else +#define SDHCI_PLTFM_PMOPS NULL #endif #endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */ diff --git a/drivers/mmc/host/sdhci-pxav2.c b/drivers/mmc/host/sdhci-pxav2.c index d4bf6d30c7b..7a039c3cb1f 100644 --- a/drivers/mmc/host/sdhci-pxav2.c +++ b/drivers/mmc/host/sdhci-pxav2.c @@ -218,13 +218,10 @@ static struct platform_driver sdhci_pxav2_driver = { .driver = { .name = "sdhci-pxav2", .owner = THIS_MODULE, + .pm = SDHCI_PLTFM_PMOPS, }, .probe = sdhci_pxav2_probe, .remove = __devexit_p(sdhci_pxav2_remove), -#ifdef CONFIG_PM - .suspend = sdhci_pltfm_suspend, - .resume = sdhci_pltfm_resume, -#endif }; static int __init sdhci_pxav2_init(void) { diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c index cff4ad3e7a5..15673a7ee6a 100644 --- a/drivers/mmc/host/sdhci-pxav3.c +++ b/drivers/mmc/host/sdhci-pxav3.c @@ -264,13 +264,10 @@ static struct platform_driver sdhci_pxav3_driver = { .driver = { .name = "sdhci-pxav3", .owner = THIS_MODULE, + .pm = SDHCI_PLTFM_PMOPS, }, .probe = sdhci_pxav3_probe, .remove = __devexit_p(sdhci_pxav3_remove), -#ifdef CONFIG_PM - .suspend = sdhci_pltfm_suspend, - .resume = sdhci_pltfm_resume, -#endif }; static int __init sdhci_pxav3_init(void) { diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index cb60c4197e0..0d33ff0d67f 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -622,23 +622,29 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev) #ifdef CONFIG_PM -static int sdhci_s3c_suspend(struct platform_device *dev, pm_message_t pm) +static int sdhci_s3c_suspend(struct device *dev) { - struct sdhci_host *host = platform_get_drvdata(dev); + struct sdhci_host *host = dev_get_drvdata(dev); - return sdhci_suspend_host(host, pm); + return sdhci_suspend_host(host); } -static int sdhci_s3c_resume(struct platform_device *dev) +static int sdhci_s3c_resume(struct device *dev) { - struct sdhci_host *host = platform_get_drvdata(dev); + struct sdhci_host *host = dev_get_drvdata(dev); return sdhci_resume_host(host); } +static const struct dev_pm_ops sdhci_s3c_pmops = { + .suspend = sdhci_s3c_suspend, + .resume = sdhci_s3c_resume, +}; + +#define SDHCI_S3C_PMOPS (&sdhci_s3c_pmops) + #else -#define sdhci_s3c_suspend NULL -#define sdhci_s3c_resume NULL +#define SDHCI_S3C_PMOPS NULL #endif static struct platform_driver sdhci_s3c_driver = { @@ -647,6 +653,7 @@ static struct platform_driver sdhci_s3c_driver = { .driver = { .owner = THIS_MODULE, .name = "s3c-sdhci", + .pm = SDHCI_S3C_PMOPS, }, }; diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c index 89699e861fc..e2e18d3f949 100644 --- a/drivers/mmc/host/sdhci-tegra.c +++ b/drivers/mmc/host/sdhci-tegra.c @@ -318,13 +318,10 @@ static struct platform_driver sdhci_tegra_driver = { .name = "sdhci-tegra", .owner = THIS_MODULE, .of_match_table = sdhci_tegra_dt_match, + .pm = SDHCI_PLTFM_PMOPS, }, .probe = sdhci_tegra_probe, .remove = __devexit_p(sdhci_tegra_remove), -#ifdef CONFIG_PM - .suspend = sdhci_pltfm_suspend, - .resume = sdhci_pltfm_resume, -#endif }; static int __init sdhci_tegra_init(void) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 6d8eea32354..19ed580f2ca 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2327,7 +2327,7 @@ out: #ifdef CONFIG_PM -int sdhci_suspend_host(struct sdhci_host *host, pm_message_t state) +int sdhci_suspend_host(struct sdhci_host *host) { int ret; diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 0a5b65460d8..a04d4d0c6fd 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -374,7 +374,7 @@ extern int sdhci_add_host(struct sdhci_host *host); extern void sdhci_remove_host(struct sdhci_host *host, int dead); #ifdef CONFIG_PM -extern int sdhci_suspend_host(struct sdhci_host *host, pm_message_t state); +extern int sdhci_suspend_host(struct sdhci_host *host); extern int sdhci_resume_host(struct sdhci_host *host); extern void sdhci_enable_irq_wakeups(struct sdhci_host *host); #endif -- cgit v1.2.3 From 5c7f0e083d2d98ba14ddd10e88f001a0ead4cae4 Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Mon, 19 Dec 2011 15:51:38 -0800 Subject: Revert "mmc: enable runtime PM by default" When SDIO runtime PM was originally introduced, we immediately faced two regressions with two different chipsets, and in response decided not to enable it by default. With the recent work on the 8686 we hoped we found all the gotchas, so 08da834 did make sense (at least experimentally). Unfortunately we now see that some setups out there still refuse to work when SDIO runtime PM is enabled by default (see http://www.spinics.net/lists/linux-mmc/msg11161.html), and obviously we can't live with these kind of regressions. This reverts commit 08da834a24312157f512224691ad1fddd11c1073. Signed-off-by: Ohad Ben-Cohen Cc: Daniel Drake Signed-off-by: Chris Ball --- drivers/mmc/core/host.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index e8a5eb38748..d31c78b72b0 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -302,17 +302,6 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev) host->max_blk_size = 512; host->max_blk_count = PAGE_CACHE_SIZE / 512; - /* - * Enable runtime power management by default. This flag was added due - * to runtime power management causing disruption for some users, but - * the power on/off code has been improved since then. - * - * We'll enable this flag by default as an experiment, and if no - * problems are reported, we will follow up later and remove the flag - * altogether. - */ - host->caps = MMC_CAP_POWER_OFF_CARD; - return host; free: -- cgit v1.2.3 From 61074287c2965edf0fc75b54ae8f4ce99f182669 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 15 Dec 2011 13:34:50 +1030 Subject: mmc: vub300: fix type of firmware_rom_wait_states module parameter You didn't mean this to be a bool. Signed-off-by: Rusty Russell Acked-by: Tony Olech Cc: Signed-off-by: Chris Ball --- drivers/mmc/host/vub300.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c index e8f6e65183d..2ec978bc32b 100644 --- a/drivers/mmc/host/vub300.c +++ b/drivers/mmc/host/vub300.c @@ -259,7 +259,7 @@ static int firmware_rom_wait_states = 0x04; static int firmware_rom_wait_states = 0x1C; #endif -module_param(firmware_rom_wait_states, bool, 0644); +module_param(firmware_rom_wait_states, int, 0644); MODULE_PARM_DESC(firmware_rom_wait_states, "ROM wait states byte=RRRIIEEE (Reserved Internal External)"); -- cgit v1.2.3 From d21b59451886cb82448302f8d6f9ac87c3bd56cf Mon Sep 17 00:00:00 2001 From: Dmitry Kasatkin Date: Mon, 5 Dec 2011 13:17:41 +0200 Subject: evm: key must be set once during initialization On multi-core systems, setting of the key before every caclculation, causes invalid HMAC calculation for other tfm users, because internal state (ipad, opad) can be invalid before set key call returns. It needs to be set only once during initialization. Signed-off-by: Dmitry Kasatkin Acked-by: Mimi Zohar Signed-off-by: James Morris --- security/integrity/evm/evm_crypto.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/security/integrity/evm/evm_crypto.c b/security/integrity/evm/evm_crypto.c index 5dd5b140242..4ad657d8809 100644 --- a/security/integrity/evm/evm_crypto.c +++ b/security/integrity/evm/evm_crypto.c @@ -41,6 +41,12 @@ static struct shash_desc *init_desc(void) hmac_tfm = NULL; return ERR_PTR(rc); } + rc = crypto_shash_setkey(hmac_tfm, evmkey, evmkey_len); + if (rc) { + crypto_free_shash(hmac_tfm); + hmac_tfm = NULL; + return ERR_PTR(rc); + } } desc = kmalloc(sizeof(*desc) + crypto_shash_descsize(hmac_tfm), @@ -51,11 +57,7 @@ static struct shash_desc *init_desc(void) desc->tfm = hmac_tfm; desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP; - rc = crypto_shash_setkey(hmac_tfm, evmkey, evmkey_len); - if (rc) - goto out; rc = crypto_shash_init(desc); -out: if (rc) { kfree(desc); return ERR_PTR(rc); -- cgit v1.2.3 From 97426f985729573cea06e82e271cc3929f1f5f8e Mon Sep 17 00:00:00 2001 From: Dmitry Kasatkin Date: Mon, 5 Dec 2011 13:17:42 +0200 Subject: evm: prevent racing during tfm allocation There is a small chance of racing during tfm allocation. This patch fixes it. Signed-off-by: Dmitry Kasatkin Acked-by: Mimi Zohar Signed-off-by: James Morris --- security/integrity/evm/evm_crypto.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/security/integrity/evm/evm_crypto.c b/security/integrity/evm/evm_crypto.c index 4ad657d8809..8738deff26f 100644 --- a/security/integrity/evm/evm_crypto.c +++ b/security/integrity/evm/evm_crypto.c @@ -27,26 +27,35 @@ static int evmkey_len = MAX_KEY_SIZE; struct crypto_shash *hmac_tfm; +static DEFINE_MUTEX(mutex); + static struct shash_desc *init_desc(void) { int rc; struct shash_desc *desc; if (hmac_tfm == NULL) { + mutex_lock(&mutex); + if (hmac_tfm) + goto out; hmac_tfm = crypto_alloc_shash(evm_hmac, 0, CRYPTO_ALG_ASYNC); if (IS_ERR(hmac_tfm)) { pr_err("Can not allocate %s (reason: %ld)\n", evm_hmac, PTR_ERR(hmac_tfm)); rc = PTR_ERR(hmac_tfm); hmac_tfm = NULL; + mutex_unlock(&mutex); return ERR_PTR(rc); } rc = crypto_shash_setkey(hmac_tfm, evmkey, evmkey_len); if (rc) { crypto_free_shash(hmac_tfm); hmac_tfm = NULL; + mutex_unlock(&mutex); return ERR_PTR(rc); } +out: + mutex_unlock(&mutex); } desc = kmalloc(sizeof(*desc) + crypto_shash_descsize(hmac_tfm), -- cgit v1.2.3 From 9ad33ba51a1ac29ba3cf90d95e4b7f7eba278f6c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 31 Oct 2011 10:34:01 +0800 Subject: mfd: Add missed free_irq in da903x_remove Signed-off-by: Axel Lin Acked-by: Eric Miao Signed-off-by: Samuel Ortiz --- drivers/mfd/da903x.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mfd/da903x.c b/drivers/mfd/da903x.c index 1b79c37fd59..62ce685a79c 100644 --- a/drivers/mfd/da903x.c +++ b/drivers/mfd/da903x.c @@ -549,6 +549,7 @@ static int __devexit da903x_remove(struct i2c_client *client) struct da903x_chip *chip = i2c_get_clientdata(client); da903x_remove_subdevs(chip); + free_irq(client->irq, chip); kfree(chip); return 0; } -- cgit v1.2.3 From 890c98e3746fa8705cc9c70979e64360cf2d8a31 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 31 Oct 2011 11:00:06 +0800 Subject: mfd: Set adp5520 bits if new value is different from the old one Current code checks if all the bit_mask bits are all zero is wrong. We need to write new value if the bit mask fields of new value is not equal to old value. Signed-off-by: Axel Lin Acked-by: Michael Hennerich Signed-off-by: Samuel Ortiz --- drivers/mfd/adp5520.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mfd/adp5520.c b/drivers/mfd/adp5520.c index f1d88483112..8d816cce832 100644 --- a/drivers/mfd/adp5520.c +++ b/drivers/mfd/adp5520.c @@ -109,7 +109,7 @@ int adp5520_set_bits(struct device *dev, int reg, uint8_t bit_mask) ret = __adp5520_read(chip->client, reg, ®_val); - if (!ret && ((reg_val & bit_mask) == 0)) { + if (!ret && ((reg_val & bit_mask) != bit_mask)) { reg_val |= bit_mask; ret = __adp5520_write(chip->client, reg, reg_val); } -- cgit v1.2.3 From af65e6cef488be0bd15932c8ce9801a47a183051 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 31 Oct 2011 14:23:03 +0800 Subject: mfd: Set da903x bits if new value is different from the old one It does not make sense to write new value only when all the bit_mask bits are zero. We need to write new value if the bit mask fields of new value is not equal to old value. Signed-off-by: Axel Lin Signed-off-by: Samuel Ortiz --- drivers/mfd/da903x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mfd/da903x.c b/drivers/mfd/da903x.c index 62ce685a79c..1924b857a0f 100644 --- a/drivers/mfd/da903x.c +++ b/drivers/mfd/da903x.c @@ -182,7 +182,7 @@ int da903x_set_bits(struct device *dev, int reg, uint8_t bit_mask) if (ret) goto out; - if ((reg_val & bit_mask) == 0) { + if ((reg_val & bit_mask) != bit_mask) { reg_val |= bit_mask; ret = __da903x_write(chip->client, reg, reg_val); } -- cgit v1.2.3 From 26bc4e0cc5426e86398d6780d160f02c0a347087 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 31 Oct 2011 14:24:30 +0800 Subject: mfd: Set tps6586x bits if new value is different from the old one It does not make sense to write new value only when all the bit_mask bits are zero. We need to write new value if the bit mask fields of new value is not equal to old value. Signed-off-by: Axel Lin Signed-off-by: Samuel Ortiz --- drivers/mfd/tps6586x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index bba26d96c24..a5ddf31b60c 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -197,7 +197,7 @@ int tps6586x_set_bits(struct device *dev, int reg, uint8_t bit_mask) if (ret) goto out; - if ((reg_val & bit_mask) == 0) { + if ((reg_val & bit_mask) != bit_mask) { reg_val |= bit_mask; ret = __tps6586x_write(to_i2c_client(dev), reg, reg_val); } -- cgit v1.2.3 From b5488b6e868454fb10d23278de5038cda98b13ab Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 4 Nov 2011 23:14:46 +0000 Subject: mfd: Update wm8994 active device checks for WM1811 This didn't go in as part of the original MFD patch for WM1811 due to cross tree issues. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/wm8994-core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index 5d6ba132837..61894fced8e 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -239,6 +239,7 @@ static int wm8994_suspend(struct device *dev) switch (wm8994->type) { case WM8958: + case WM1811: ret = wm8994_reg_read(wm8994, WM8958_MIC_DETECT_1); if (ret < 0) { dev_err(dev, "Failed to read power status: %d\n", ret); -- cgit v1.2.3 From 858a6303f2b14945447a964563f54c918ef3927e Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 7 Nov 2011 11:20:09 +0800 Subject: mfd: include linux/module.h for ab5500-debugfs Include linux/module.h to fix below build error: CC drivers/mfd/ab5500-debugfs.o drivers/mfd/ab5500-debugfs.c:571: error: 'THIS_MODULE' undeclared here (not in a function) make[2]: *** [drivers/mfd/ab5500-debugfs.o] Error 1 Signed-off-by: Axel Lin Acked-by: Linus Walleij Signed-off-by: Samuel Ortiz --- drivers/mfd/ab5500-debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mfd/ab5500-debugfs.c b/drivers/mfd/ab5500-debugfs.c index 43c0ebb8195..b7b2d3483fd 100644 --- a/drivers/mfd/ab5500-debugfs.c +++ b/drivers/mfd/ab5500-debugfs.c @@ -4,7 +4,7 @@ * Debugfs support for the AB5500 MFD driver */ -#include +#include #include #include #include -- cgit v1.2.3 From 8653be1afd60d6e8c36139b487e375b70357d9ef Mon Sep 17 00:00:00 2001 From: Ilya Yanok Date: Mon, 1 Aug 2011 23:00:28 +0200 Subject: mfd: Fix twl-core oops while calling twl_i2c_* for unbound driver Check inuse variable before trying to access twl_map to prevent dereferencing of uninitialized variable. Signed-off-by: Ilya Yanok Cc: stable@kernel.org Signed-off-by: Samuel Ortiz --- drivers/mfd/twl-core.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index bfbd66021af..61e70cfaa77 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -363,13 +363,13 @@ int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); return -EPERM; } - sid = twl_map[mod_no].sid; - twl = &twl_modules[sid]; - if (unlikely(!inuse)) { - pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); + pr_err("%s: not initialized\n", DRIVER_NAME); return -EPERM; } + sid = twl_map[mod_no].sid; + twl = &twl_modules[sid]; + mutex_lock(&twl->xfer_lock); /* * [MSG1]: fill the register address data @@ -420,13 +420,13 @@ int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); return -EPERM; } - sid = twl_map[mod_no].sid; - twl = &twl_modules[sid]; - if (unlikely(!inuse)) { - pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); + pr_err("%s: not initialized\n", DRIVER_NAME); return -EPERM; } + sid = twl_map[mod_no].sid; + twl = &twl_modules[sid]; + mutex_lock(&twl->xfer_lock); /* [MSG1] fill the register address data */ msg = &twl->xfer_msg[0]; -- cgit v1.2.3 From df7206477e36bb73e81b99c2cbbc1b91e4b1c8ac Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 10 Nov 2011 09:56:18 +0800 Subject: mfd: add #ifdef CONFIG_DEBUG_FS guard for ab8500_debug_resources Fix below build warning if CONFIG_DEBUG_FS is disabled. CC drivers/mfd/ab8500-core.o drivers/mfd/ab8500-core.c:623: warning: 'ab8500_debug_resources' defined but not used Signed-off-by: Axel Lin Signed-off-by: Samuel Ortiz --- drivers/mfd/ab8500-core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index 1e9173804ed..d3d572b2317 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -620,6 +620,7 @@ static struct resource __devinitdata ab8500_fg_resources[] = { static struct resource __devinitdata ab8500_chargalg_resources[] = {}; +#ifdef CONFIG_DEBUG_FS static struct resource __devinitdata ab8500_debug_resources[] = { { .name = "IRQ_FIRST", @@ -634,6 +635,7 @@ static struct resource __devinitdata ab8500_debug_resources[] = { .flags = IORESOURCE_IRQ, }, }; +#endif static struct resource __devinitdata ab8500_usb_resources[] = { { -- cgit v1.2.3 From 8f6a459a9daa6ce76d7c192f2cb3047fffb45ec8 Mon Sep 17 00:00:00 2001 From: Marcus Folkesson Date: Tue, 22 Nov 2011 14:39:51 +0100 Subject: mfd: Handle tps65910 clear-mask correctly The function is not actually cleaing the bitmask. Signed-off-by: Marcus Folkesson Signed-off-by: Samuel Ortiz --- drivers/mfd/tps65910.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c index 6f5b8cf2f65..c1da84bc157 100644 --- a/drivers/mfd/tps65910.c +++ b/drivers/mfd/tps65910.c @@ -120,7 +120,7 @@ int tps65910_clear_bits(struct tps65910 *tps65910, u8 reg, u8 mask) goto out; } - data &= mask; + data &= ~mask; err = tps65910_i2c_write(tps65910, reg, 1, &data); if (err) dev_err(tps65910->dev, "write to reg %x failed\n", reg); -- cgit v1.2.3 From 286f8f3cd615177d5d0f8af8059a3fa39f51fa97 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Sun, 27 Nov 2011 07:17:41 +1100 Subject: mfd: Base interrupt for twl4030-irq must be one-shot As the interrupt source is only cleared by the threaded interrupt service routine, we need to make the base interrupt IRQF_ONESHOT. Without this, the first interrupt from the TWL4030 cause the CPU to enter an infinite loop trying to handle to interrupt but never clearing it. Signed-off-by: NeilBrown Tested-by: Felipe Contreras Signed-off-by: Samuel Ortiz --- drivers/mfd/twl4030-irq.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c index f062c8cc6c3..3d3d6ed48f8 100644 --- a/drivers/mfd/twl4030-irq.c +++ b/drivers/mfd/twl4030-irq.c @@ -733,8 +733,9 @@ int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end) } /* install an irq handler to demultiplex the TWL4030 interrupt */ - status = request_threaded_irq(irq_num, NULL, handle_twl4030_pih, 0, - "TWL4030-PIH", NULL); + status = request_threaded_irq(irq_num, NULL, handle_twl4030_pih, + IRQF_ONESHOT, + "TWL4030-PIH", NULL); if (status < 0) { pr_err("twl4030: could not claim irq%d: %d\n", irq_num, status); goto fail_rqirq; -- cgit v1.2.3 From c1e61bcf8269d3bc4390a363ad2e1bc1dc226bda Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Sun, 27 Nov 2011 07:17:41 +1100 Subject: mfd: Use request_threaded_irq for twl4030-irq instead of irq_set_chained_handler irq_set_chained_handler sets 'desc->handle_irq'. However this irq is called by handle_nested_irq from handle_twl4030_pih, and that uses action->thread_fn. So the handled set with irq_set_chained_handler is never called. So change to use request_threaded_irq instead - that sets the correct field. Tested on GTA04 Phoenux. Signed-off-by: NeilBrown Tested-by: Felipe Contreras Signed-off-by: Samuel Ortiz --- drivers/mfd/twl4030-irq.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c index 3d3d6ed48f8..29f11e0765f 100644 --- a/drivers/mfd/twl4030-irq.c +++ b/drivers/mfd/twl4030-irq.c @@ -432,6 +432,7 @@ struct sih_agent { u32 edge_change; struct mutex irq_lock; + char *irq_name; }; /*----------------------------------------------------------------------*/ @@ -589,7 +590,7 @@ static inline int sih_read_isr(const struct sih *sih) * Generic handler for SIH interrupts ... we "know" this is called * in task context, with IRQs enabled. */ -static void handle_twl4030_sih(unsigned irq, struct irq_desc *desc) +static irqreturn_t handle_twl4030_sih(int irq, void *data) { struct sih_agent *agent = irq_get_handler_data(irq); const struct sih *sih = agent->sih; @@ -602,7 +603,7 @@ static void handle_twl4030_sih(unsigned irq, struct irq_desc *desc) pr_err("twl4030: %s SIH, read ISR error %d\n", sih->name, isr); /* REVISIT: recover; eventually mask it all, etc */ - return; + return IRQ_HANDLED; } while (isr) { @@ -616,6 +617,7 @@ static void handle_twl4030_sih(unsigned irq, struct irq_desc *desc) pr_err("twl4030: %s SIH, invalid ISR bit %d\n", sih->name, irq); } + return IRQ_HANDLED; } static unsigned twl4030_irq_next; @@ -668,18 +670,19 @@ int twl4030_sih_setup(int module) activate_irq(irq); } - status = irq_base; twl4030_irq_next += i; /* replace generic PIH handler (handle_simple_irq) */ irq = sih_mod + twl4030_irq_base; irq_set_handler_data(irq, agent); - irq_set_chained_handler(irq, handle_twl4030_sih); + agent->irq_name = kasprintf(GFP_KERNEL, "twl4030_%s", sih->name); + status = request_threaded_irq(irq, NULL, handle_twl4030_sih, 0, + agent->irq_name ?: sih->name, NULL); pr_info("twl4030: %s (irq %d) chaining IRQs %d..%d\n", sih->name, irq, irq_base, twl4030_irq_next - 1); - return status; + return status < 0 ? status : irq_base; } /* FIXME need a call to reverse twl4030_sih_setup() ... */ -- cgit v1.2.3 From fa860403e61cf5201e2f03b726aa53c30ae9a659 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 9 Dec 2011 11:27:55 +0800 Subject: mfd: Include linux/io.h to jz4740-adc Include linux/io.h to fix below build error: CC drivers/mfd/jz4740-adc.o drivers/mfd/jz4740-adc.c: In function 'jz4740_adc_irq_demux': drivers/mfd/jz4740-adc.c:73: error: implicit declaration of function 'readb' drivers/mfd/jz4740-adc.c: In function 'jz4740_adc_set_enabled': drivers/mfd/jz4740-adc.c:110: error: implicit declaration of function 'writeb' drivers/mfd/jz4740-adc.c: In function 'jz4740_adc_set_config': drivers/mfd/jz4740-adc.c:146: error: implicit declaration of function 'readl' drivers/mfd/jz4740-adc.c:151: error: implicit declaration of function 'writel' drivers/mfd/jz4740-adc.c: In function 'jz4740_adc_probe': drivers/mfd/jz4740-adc.c:249: error: implicit declaration of function 'ioremap_nocache' drivers/mfd/jz4740-adc.c:249: warning: assignment makes pointer from integer without a cast drivers/mfd/jz4740-adc.c:289: warning: passing argument 3 of 'mfd_add_devices' discards qualifiers from pointer target type include/linux/mfd/core.h:93: note: expected 'struct mfd_cell *' but argument is of type 'const struct mfd_cell *' drivers/mfd/jz4740-adc.c:299: error: implicit declaration of function 'iounmap' make[2]: *** [drivers/mfd/jz4740-adc.o] Error 1 make[1]: *** [drivers/mfd] Error 2 make: *** [drivers] Error 2 Signed-off-by: Axel Lin Acked-by: Lars-Peter Clausen Signed-off-by: Samuel Ortiz --- drivers/mfd/jz4740-adc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c index 1e9ee533eac..ef39528088f 100644 --- a/drivers/mfd/jz4740-adc.c +++ b/drivers/mfd/jz4740-adc.c @@ -16,6 +16,7 @@ */ #include +#include #include #include #include -- cgit v1.2.3 From b246272ecc5ac68c743b15c9e41a2275f7ce70e2 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Mon, 19 Dec 2011 17:11:52 -0800 Subject: cpusets: stall when updating mems_allowed for mempolicy or disjoint nodemask Kernels where MAX_NUMNODES > BITS_PER_LONG may temporarily see an empty nodemask in a tsk's mempolicy if its previous nodemask is remapped onto a new set of allowed cpuset nodes where the two nodemasks, as a result of the remap, are now disjoint. c0ff7453bb5c ("cpuset,mm: fix no node to alloc memory when changing cpuset's mems") adds get_mems_allowed() to prevent the set of allowed nodes from changing for a thread. This causes any update to a set of allowed nodes to stall until put_mems_allowed() is called. This stall is unncessary, however, if at least one node remains unchanged in the update to the set of allowed nodes. This was addressed by 89e8a244b97e ("cpusets: avoid looping when storing to mems_allowed if one node remains set"), but it's still possible that an empty nodemask may be read from a mempolicy because the old nodemask may be remapped to the new nodemask during rebind. To prevent this, only avoid the stall if there is no mempolicy for the thread being changed. This is a temporary solution until all reads from mempolicy nodemasks can be guaranteed to not be empty without the get_mems_allowed() synchronization. Also moves the check for nodemask intersection inside task_lock() so that tsk->mems_allowed cannot change. This ensures that nothing can set this tsk's mems_allowed out from under us and also protects tsk->mempolicy. Reported-by: Miao Xie Signed-off-by: David Rientjes Cc: KOSAKI Motohiro Cc: Paul Menage Cc: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/cpuset.c | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 9fe58c46a42..0b1712dba58 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -123,6 +123,19 @@ static inline struct cpuset *task_cs(struct task_struct *task) struct cpuset, css); } +#ifdef CONFIG_NUMA +static inline bool task_has_mempolicy(struct task_struct *task) +{ + return task->mempolicy; +} +#else +static inline bool task_has_mempolicy(struct task_struct *task) +{ + return false; +} +#endif + + /* bits in struct cpuset flags field */ typedef enum { CS_CPU_EXCLUSIVE, @@ -949,7 +962,7 @@ static void cpuset_migrate_mm(struct mm_struct *mm, const nodemask_t *from, static void cpuset_change_task_nodemask(struct task_struct *tsk, nodemask_t *newmems) { - bool masks_disjoint = !nodes_intersects(*newmems, tsk->mems_allowed); + bool need_loop; repeat: /* @@ -962,6 +975,14 @@ repeat: return; task_lock(tsk); + /* + * Determine if a loop is necessary if another thread is doing + * get_mems_allowed(). If at least one node remains unchanged and + * tsk does not have a mempolicy, then an empty nodemask will not be + * possible when mems_allowed is larger than a word. + */ + need_loop = task_has_mempolicy(tsk) || + !nodes_intersects(*newmems, tsk->mems_allowed); nodes_or(tsk->mems_allowed, tsk->mems_allowed, *newmems); mpol_rebind_task(tsk, newmems, MPOL_REBIND_STEP1); @@ -981,11 +1002,9 @@ repeat: /* * Allocation of memory is very fast, we needn't sleep when waiting - * for the read-side. No wait is necessary, however, if at least one - * node remains unchanged. + * for the read-side. */ - while (masks_disjoint && - ACCESS_ONCE(tsk->mems_allowed_change_disable)) { + while (need_loop && ACCESS_ONCE(tsk->mems_allowed_change_disable)) { task_unlock(tsk); if (!task_curr(tsk)) yield(); -- cgit v1.2.3 From 695c60f21c69e525a89279a5f35bae4ff237afbc Mon Sep 17 00:00:00 2001 From: Thomas Meyer Date: Mon, 19 Dec 2011 17:11:55 -0800 Subject: nilfs2: unbreak compat ioctl commit 828b1c50ae ("nilfs2: add compat ioctl") incidentally broke all other NILFS compat ioctls. Make them work again. Signed-off-by: Thomas Meyer Signed-off-by: Ryusuke Konishi Tested-by: Ryusuke Konishi Cc: [3.0+] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/nilfs2/ioctl.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c index 41d6743d303..3e654273cfc 100644 --- a/fs/nilfs2/ioctl.c +++ b/fs/nilfs2/ioctl.c @@ -842,6 +842,19 @@ long nilfs_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) case FS_IOC32_GETVERSION: cmd = FS_IOC_GETVERSION; break; + case NILFS_IOCTL_CHANGE_CPMODE: + case NILFS_IOCTL_DELETE_CHECKPOINT: + case NILFS_IOCTL_GET_CPINFO: + case NILFS_IOCTL_GET_CPSTAT: + case NILFS_IOCTL_GET_SUINFO: + case NILFS_IOCTL_GET_SUSTAT: + case NILFS_IOCTL_GET_VINFO: + case NILFS_IOCTL_GET_BDESCS: + case NILFS_IOCTL_CLEAN_SEGMENTS: + case NILFS_IOCTL_SYNC: + case NILFS_IOCTL_RESIZE: + case NILFS_IOCTL_SET_ALLOC_RANGE: + break; default: return -ENOIOCTLCMD; } -- cgit v1.2.3 From 481fe17e973fb97aa3edf17c69557afe88d8334f Mon Sep 17 00:00:00 2001 From: Haogang Chen Date: Mon, 19 Dec 2011 17:11:56 -0800 Subject: nilfs2: potential integer overflow in nilfs_ioctl_clean_segments() There is a potential integer overflow in nilfs_ioctl_clean_segments(). When a large argv[n].v_nmembs is passed from the userspace, the subsequent call to vmalloc() will allocate a buffer smaller than expected, which leads to out-of-bound access in nilfs_ioctl_move_blocks() and lfs_clean_segments(). The following check does not prevent the overflow because nsegs is also controlled by the userspace and could be very large. if (argv[n].v_nmembs > nsegs * nilfs->ns_blocks_per_segment) goto out_free; This patch clamps argv[n].v_nmembs to UINT_MAX / argv[n].v_size, and returns -EINVAL when overflow. Signed-off-by: Haogang Chen Signed-off-by: Ryusuke Konishi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/nilfs2/ioctl.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c index 3e654273cfc..ac258beeda3 100644 --- a/fs/nilfs2/ioctl.c +++ b/fs/nilfs2/ioctl.c @@ -625,6 +625,9 @@ static int nilfs_ioctl_clean_segments(struct inode *inode, struct file *filp, if (argv[n].v_nmembs > nsegs * nilfs->ns_blocks_per_segment) goto out_free; + if (argv[n].v_nmembs >= UINT_MAX / argv[n].v_size) + goto out_free; + len = argv[n].v_size * argv[n].v_nmembs; base = (void __user *)(unsigned long)argv[n].v_base; if (len == 0) { -- cgit v1.2.3 From a41c58a6665cc995e237303b05db42100b71b65e Mon Sep 17 00:00:00 2001 From: Hillf Danton Date: Mon, 19 Dec 2011 17:11:57 -0800 Subject: memcg: keep root group unchanged if creation fails If the request is to create non-root group and we fail to meet it, we should leave the root unchanged. Signed-off-by: Hillf Danton Acked-by: Hugh Dickins Acked-by: KAMEZAWA Hiroyuki Acked-by: Michal Hocko Cc: Balbir Singh Cc: David Rientjes Cc: Andrea Arcangeli Cc: Johannes Weiner Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 6aff93c98ac..b63f5f7dfa0 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -4907,9 +4907,9 @@ mem_cgroup_create(struct cgroup_subsys *ss, struct cgroup *cont) int cpu; enable_swap_cgroup(); parent = NULL; - root_mem_cgroup = memcg; if (mem_cgroup_soft_limit_tree_init()) goto free_out; + root_mem_cgroup = memcg; for_each_possible_cpu(cpu) { struct memcg_stock_pcp *stock = &per_cpu(memcg_stock, cpu); @@ -4948,7 +4948,6 @@ mem_cgroup_create(struct cgroup_subsys *ss, struct cgroup *cont) return &memcg->css; free_out: __mem_cgroup_free(memcg); - root_mem_cgroup = NULL; return ERR_PTR(error); } -- cgit v1.2.3 From ff05b6f7ae762b6eb464183eec994b28ea09f6dd Mon Sep 17 00:00:00 2001 From: Frantisek Hrbata Date: Mon, 19 Dec 2011 17:11:59 -0800 Subject: oom: fix integer overflow of points in oom_badness An integer overflow will happen on 64bit archs if task's sum of rss, swapents and nr_ptes exceeds (2^31)/1000 value. This was introduced by commit f755a04 oom: use pte pages in OOM score where the oom score computation was divided into several steps and it's no longer computed as one expression in unsigned long(rss, swapents, nr_pte are unsigned long), where the result value assigned to points(int) is in range(1..1000). So there could be an int overflow while computing 176 points *= 1000; and points may have negative value. Meaning the oom score for a mem hog task will be one. 196 if (points <= 0) 197 return 1; For example: [ 3366] 0 3366 35390480 24303939 5 0 0 oom01 Out of memory: Kill process 3366 (oom01) score 1 or sacrifice child Here the oom1 process consumes more than 24303939(rss)*4096~=92GB physical memory, but it's oom score is one. In this situation the mem hog task is skipped and oom killer kills another and most probably innocent task with oom score greater than one. The points variable should be of type long instead of int to prevent the int overflow. Signed-off-by: Frantisek Hrbata Acked-by: KOSAKI Motohiro Acked-by: Oleg Nesterov Acked-by: David Rientjes Cc: [2.6.36+] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/oom_kill.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 76f2c5ae908..069b64e521f 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -176,7 +176,7 @@ static bool oom_unkillable_task(struct task_struct *p, unsigned int oom_badness(struct task_struct *p, struct mem_cgroup *mem, const nodemask_t *nodemask, unsigned long totalpages) { - int points; + long points; if (oom_unkillable_task(p, mem, nodemask)) return 0; -- cgit v1.2.3 From b75d91f7ca513f0a4d0d1ad0942fb90cf5a2bc88 Mon Sep 17 00:00:00 2001 From: Corey Minyard Date: Mon, 19 Dec 2011 17:12:02 -0800 Subject: ipmi_watchdog: restore settings when BMC reset MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If the BMC gets reset, it will return 0x80 response errors. In less than a week # grep "Error 80 on cmd 22" /var/log/kernel |wc -l 378681 In this case, it is probably a good idea to restore the IPMI settings. Signed-off-by: Corey Minyard Tested-by: Arkadiusz Miśkiewicz Reported-by: Arkadiusz Miśkiewicz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/ipmi/ipmi_watchdog.c | 41 ++++++++++++++++++++++++++++++++++++--- 1 file changed, 38 insertions(+), 3 deletions(-) diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c index c2917ffad2c..34767a6d7f4 100644 --- a/drivers/char/ipmi/ipmi_watchdog.c +++ b/drivers/char/ipmi/ipmi_watchdog.c @@ -139,6 +139,8 @@ #define IPMI_WDOG_SET_TIMER 0x24 #define IPMI_WDOG_GET_TIMER 0x25 +#define IPMI_WDOG_TIMER_NOT_INIT_RESP 0x80 + /* These are here until the real ones get into the watchdog.h interface. */ #ifndef WDIOC_GETTIMEOUT #define WDIOC_GETTIMEOUT _IOW(WATCHDOG_IOCTL_BASE, 20, int) @@ -596,6 +598,7 @@ static int ipmi_heartbeat(void) struct kernel_ipmi_msg msg; int rv; struct ipmi_system_interface_addr addr; + int timeout_retries = 0; if (ipmi_ignore_heartbeat) return 0; @@ -616,6 +619,7 @@ static int ipmi_heartbeat(void) mutex_lock(&heartbeat_lock); +restart: atomic_set(&heartbeat_tofree, 2); /* @@ -653,7 +657,33 @@ static int ipmi_heartbeat(void) /* Wait for the heartbeat to be sent. */ wait_for_completion(&heartbeat_wait); - if (heartbeat_recv_msg.msg.data[0] != 0) { + if (heartbeat_recv_msg.msg.data[0] == IPMI_WDOG_TIMER_NOT_INIT_RESP) { + timeout_retries++; + if (timeout_retries > 3) { + printk(KERN_ERR PFX ": Unable to restore the IPMI" + " watchdog's settings, giving up.\n"); + rv = -EIO; + goto out_unlock; + } + + /* + * The timer was not initialized, that means the BMC was + * probably reset and lost the watchdog information. Attempt + * to restore the timer's info. Note that we still hold + * the heartbeat lock, to keep a heartbeat from happening + * in this process, so must say no heartbeat to avoid a + * deadlock on this mutex. + */ + rv = ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB); + if (rv) { + printk(KERN_ERR PFX ": Unable to send the command to" + " set the watchdog's settings, giving up.\n"); + goto out_unlock; + } + + /* We might need a new heartbeat, so do it now */ + goto restart; + } else if (heartbeat_recv_msg.msg.data[0] != 0) { /* * Got an error in the heartbeat response. It was already * reported in ipmi_wdog_msg_handler, but we should return @@ -662,6 +692,7 @@ static int ipmi_heartbeat(void) rv = -EINVAL; } +out_unlock: mutex_unlock(&heartbeat_lock); return rv; @@ -922,11 +953,15 @@ static struct miscdevice ipmi_wdog_miscdev = { static void ipmi_wdog_msg_handler(struct ipmi_recv_msg *msg, void *handler_data) { - if (msg->msg.data[0] != 0) { + if (msg->msg.cmd == IPMI_WDOG_RESET_TIMER && + msg->msg.data[0] == IPMI_WDOG_TIMER_NOT_INIT_RESP) + printk(KERN_INFO PFX "response: The IPMI controller appears" + " to have been reset, will attempt to reinitialize" + " the watchdog timer\n"); + else if (msg->msg.data[0] != 0) printk(KERN_ERR PFX "response: Error %x on cmd %x\n", msg->msg.data[0], msg->msg.cmd); - } ipmi_free_recv_msg(msg); } -- cgit v1.2.3 From 0006526d78e93c3684c806bf7cf3f67dfa49c3c8 Mon Sep 17 00:00:00 2001 From: Kautuk Consul Date: Mon, 19 Dec 2011 17:12:04 -0800 Subject: mm/vmalloc.c: remove static declaration of va from __get_vm_area_node Static storage is not required for the struct vmap_area in __get_vm_area_node. Removing "static" to store this variable on the stack instead. Signed-off-by: Kautuk Consul Acked-by: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/vmalloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 1d8b32f0713..27be2f0d4cb 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -1290,7 +1290,7 @@ static struct vm_struct *__get_vm_area_node(unsigned long size, unsigned long align, unsigned long flags, unsigned long start, unsigned long end, int node, gfp_t gfp_mask, void *caller) { - static struct vmap_area *va; + struct vmap_area *va; struct vm_struct *area; BUG_ON(in_interrupt()); -- cgit v1.2.3 From 3d3c8f93a237b64580c5c5e138edeb1377e98230 Mon Sep 17 00:00:00 2001 From: Michel Lespinasse Date: Mon, 19 Dec 2011 17:12:06 -0800 Subject: binary_sysctl(): fix memory leak binary_sysctl() calls sysctl_getname() which allocates from names_cache slab usin __getname() The matching function to free the name is __putname(), and not putname() which should be used only to match getname() allocations. This is because when auditing is enabled, putname() calls audit_putname *instead* (not in addition) to __putname(). Then, if a syscall is in progress, audit_putname does not release the name - instead, it expects the name to get released when the syscall completes, but that will happen only if audit_getname() was called previously, i.e. if the name was allocated with getname() rather than the naked __getname(). So, __getname() followed by putname() ends up leaking memory. Signed-off-by: Michel Lespinasse Acked-by: Al Viro Cc: Christoph Hellwig Cc: Eric Paris Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/sysctl_binary.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c index 6318b511afa..a650694883a 100644 --- a/kernel/sysctl_binary.c +++ b/kernel/sysctl_binary.c @@ -1354,7 +1354,7 @@ static ssize_t binary_sysctl(const int *name, int nlen, fput(file); out_putname: - putname(pathname); + __putname(pathname); out: return result; } -- cgit v1.2.3 From a76c0adf60f6ca5ff3481992e4ea0383776b24d2 Mon Sep 17 00:00:00 2001 From: Thomas Graf Date: Mon, 19 Dec 2011 04:11:40 +0000 Subject: sctp: Do not account for sizeof(struct sk_buff) in estimated rwnd When checking whether a DATA chunk fits into the estimated rwnd a full sizeof(struct sk_buff) is added to the needed chunk size. This quickly exhausts the available rwnd space and leads to packets being sent which are much below the PMTU limit. This can lead to much worse performance. The reason for this behaviour was to avoid putting too much memory pressure on the receiver. The concept is not completely irational because a Linux receiver does in fact clone an skb for each DATA chunk delivered. However, Linux also reserves half the available socket buffer space for data structures therefore usage of it is already accounted for. When proposing to change this the last time it was noted that this behaviour was introduced to solve a performance issue caused by rwnd overusage in combination with small DATA chunks. Trying to reproduce this I found that with the sk_buff overhead removed, the performance would improve significantly unless socket buffer limits are increased. The following numbers have been gathered using a patched iperf supporting SCTP over a live 1 Gbit ethernet network. The -l option was used to limit DATA chunk sizes. The numbers listed are based on the average of 3 test runs each. Default values have been used for sk_(r|w)mem. Chunk Size Unpatched No Overhead ------------------------------------- 4 15.2 Kbit [!] 12.2 Mbit [!] 8 35.8 Kbit [!] 26.0 Mbit [!] 16 95.5 Kbit [!] 54.4 Mbit [!] 32 106.7 Mbit 102.3 Mbit 64 189.2 Mbit 188.3 Mbit 128 331.2 Mbit 334.8 Mbit 256 537.7 Mbit 536.0 Mbit 512 766.9 Mbit 766.6 Mbit 1024 810.1 Mbit 808.6 Mbit Signed-off-by: Thomas Graf Signed-off-by: David S. Miller --- net/sctp/output.c | 8 +------- net/sctp/outqueue.c | 6 ++---- 2 files changed, 3 insertions(+), 11 deletions(-) diff --git a/net/sctp/output.c b/net/sctp/output.c index 08b3cead650..817174eb5f4 100644 --- a/net/sctp/output.c +++ b/net/sctp/output.c @@ -697,13 +697,7 @@ static void sctp_packet_append_data(struct sctp_packet *packet, /* Keep track of how many bytes are in flight to the receiver. */ asoc->outqueue.outstanding_bytes += datasize; - /* Update our view of the receiver's rwnd. Include sk_buff overhead - * while updating peer.rwnd so that it reduces the chances of a - * receiver running out of receive buffer space even when receive - * window is still open. This can happen when a sender is sending - * sending small messages. - */ - datasize += sizeof(struct sk_buff); + /* Update our view of the receiver's rwnd. */ if (datasize < rwnd) rwnd -= datasize; else diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c index 14c2b06028f..cfeb1d4a1ee 100644 --- a/net/sctp/outqueue.c +++ b/net/sctp/outqueue.c @@ -411,8 +411,7 @@ void sctp_retransmit_mark(struct sctp_outq *q, chunk->transport->flight_size -= sctp_data_size(chunk); q->outstanding_bytes -= sctp_data_size(chunk); - q->asoc->peer.rwnd += (sctp_data_size(chunk) + - sizeof(struct sk_buff)); + q->asoc->peer.rwnd += sctp_data_size(chunk); } continue; } @@ -432,8 +431,7 @@ void sctp_retransmit_mark(struct sctp_outq *q, * (Section 7.2.4)), add the data size of those * chunks to the rwnd. */ - q->asoc->peer.rwnd += (sctp_data_size(chunk) + - sizeof(struct sk_buff)); + q->asoc->peer.rwnd += sctp_data_size(chunk); q->outstanding_bytes -= sctp_data_size(chunk); if (chunk->transport) transport->flight_size -= sctp_data_size(chunk); -- cgit v1.2.3 From cd7816d14953c8af910af5bb92f488b0b277e29d Mon Sep 17 00:00:00 2001 From: Gerlando Falauto Date: Mon, 19 Dec 2011 22:58:04 +0000 Subject: net: have ipconfig not wait if no dev is available previous commit 3fb72f1e6e6165c5f495e8dc11c5bbd14c73385c makes IP-Config wait for carrier on at least one network device. Before waiting (predefined value 120s), check that at least one device was successfully brought up. Otherwise (e.g. buggy bootloader which does not set the MAC address) there is no point in waiting for carrier. Cc: Micha Nelissen Cc: Holger Brunck Signed-off-by: Gerlando Falauto Signed-off-by: David S. Miller --- net/ipv4/ipconfig.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index 0da2afc97f3..99ec116bef1 100644 --- a/net/ipv4/ipconfig.c +++ b/net/ipv4/ipconfig.c @@ -253,6 +253,10 @@ static int __init ic_open_devs(void) } } + /* no point in waiting if we could not bring up at least one device */ + if (!ic_first_dev) + goto have_carrier; + /* wait for a carrier on at least one device */ start = jiffies; while (jiffies - start < msecs_to_jiffies(CONF_CARRIER_TIMEOUT)) { -- cgit v1.2.3 From 50345f1ea9cda4618d9c26e590a97ecd4bc7ac75 Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 13 Dec 2011 14:49:04 +0000 Subject: SELinux: Fix RCU deref check warning in sel_netport_insert() Fix the following bug in sel_netport_insert() where rcu_dereference() should be rcu_dereference_protected() as sel_netport_lock is held. =================================================== [ INFO: suspicious rcu_dereference_check() usage. ] --------------------------------------------------- security/selinux/netport.c:127 invoked rcu_dereference_check() without protection! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 1 lock held by ossec-rootcheck/3323: #0: (sel_netport_lock){+.....}, at: [] sel_netport_sid+0xbb/0x226 stack backtrace: Pid: 3323, comm: ossec-rootcheck Not tainted 3.1.0-rc8-fsdevel+ #1095 Call Trace: [] lockdep_rcu_dereference+0xa7/0xb0 [] sel_netport_sid+0x1b7/0x226 [] ? sel_netport_avc_callback+0xbc/0xbc [] selinux_socket_bind+0x115/0x230 [] ? might_fault+0x4e/0x9e [] ? might_fault+0x97/0x9e [] security_socket_bind+0x11/0x13 [] sys_bind+0x56/0x95 [] ? sysret_check+0x27/0x62 [] ? trace_hardirqs_on_caller+0x11e/0x155 [] ? audit_syscall_entry+0x17b/0x1ae [] ? trace_hardirqs_on_thunk+0x3a/0x3f [] system_call_fastpath+0x16/0x1b Signed-off-by: David Howells Acked-by: Paul Moore Acked-by: Eric Dumazet Cc: stable@kernel.org Signed-off-by: James Morris --- security/selinux/netport.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/security/selinux/netport.c b/security/selinux/netport.c index 0b62bd11246..7b9eb1faf68 100644 --- a/security/selinux/netport.c +++ b/security/selinux/netport.c @@ -123,7 +123,9 @@ static void sel_netport_insert(struct sel_netport *port) if (sel_netport_hash[idx].size == SEL_NETPORT_HASH_BKT_LIMIT) { struct sel_netport *tail; tail = list_entry( - rcu_dereference(sel_netport_hash[idx].list.prev), + rcu_dereference_protected( + sel_netport_hash[idx].list.prev, + lockdep_is_held(&sel_netport_lock)), struct sel_netport, list); list_del_rcu(&tail->list); kfree_rcu(tail, rcu); -- cgit v1.2.3 From 7b21a202b87b7f18587bd15ee6bdb477fed0fb43 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Wed, 21 Dec 2011 03:54:24 +0000 Subject: firmware: Refer to the co-maintained linux-firmware.git repository David and I are sharing maintenance of this repository. Patches should be sent to both of us. Signed-off-by: Ben Hutchings Signed-off-by: Linus Torvalds --- firmware/README.AddingFirmware | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/firmware/README.AddingFirmware b/firmware/README.AddingFirmware index e24cd8986d8..ea78c3a17ee 100644 --- a/firmware/README.AddingFirmware +++ b/firmware/README.AddingFirmware @@ -12,7 +12,7 @@ here. This directory is _NOT_ for adding arbitrary new firmware images. The place to add those is the separate linux-firmware repository: - git://git.kernel.org/pub/scm/linux/kernel/git/dwmw2/linux-firmware.git + git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git That repository contains all these firmware images which have been extracted from older drivers, as well various new firmware images which @@ -22,6 +22,7 @@ been permitted to redistribute under separate cover. To submit firmware to that repository, please send either a git binary diff or preferably a git pull request to: David Woodhouse + Ben Hutchings Your commit should include an update to the WHENCE file clearly identifying the licence under which the firmware is available, and -- cgit v1.2.3 From 9f28a2fc0bd77511f649c0a788c7bf9a5fd04edb Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 21 Dec 2011 15:47:16 -0500 Subject: ipv4: reintroduce route cache garbage collector Commit 2c8cec5c10b (ipv4: Cache learned PMTU information in inetpeer) removed IP route cache garbage collector a bit too soon, as this gc was responsible for expired routes cleanup, releasing their neighbour reference. As pointed out by Robert Gladewitz, recent kernels can fill and exhaust their neighbour cache. Reintroduce the garbage collection, since we'll have to wait our neighbour lookups become refcount-less to not depend on this stuff. Reported-by: Robert Gladewitz Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/route.c | 107 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 107 insertions(+) diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 46af62363b8..252c512e8a8 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -120,6 +120,7 @@ static int ip_rt_max_size; static int ip_rt_gc_timeout __read_mostly = RT_GC_TIMEOUT; +static int ip_rt_gc_interval __read_mostly = 60 * HZ; static int ip_rt_gc_min_interval __read_mostly = HZ / 2; static int ip_rt_redirect_number __read_mostly = 9; static int ip_rt_redirect_load __read_mostly = HZ / 50; @@ -133,6 +134,9 @@ static int ip_rt_min_advmss __read_mostly = 256; static int rt_chain_length_max __read_mostly = 20; static int redirect_genid; +static struct delayed_work expires_work; +static unsigned long expires_ljiffies; + /* * Interface to generic destination cache. */ @@ -830,6 +834,97 @@ static int has_noalias(const struct rtable *head, const struct rtable *rth) return ONE; } +static void rt_check_expire(void) +{ + static unsigned int rover; + unsigned int i = rover, goal; + struct rtable *rth; + struct rtable __rcu **rthp; + unsigned long samples = 0; + unsigned long sum = 0, sum2 = 0; + unsigned long delta; + u64 mult; + + delta = jiffies - expires_ljiffies; + expires_ljiffies = jiffies; + mult = ((u64)delta) << rt_hash_log; + if (ip_rt_gc_timeout > 1) + do_div(mult, ip_rt_gc_timeout); + goal = (unsigned int)mult; + if (goal > rt_hash_mask) + goal = rt_hash_mask + 1; + for (; goal > 0; goal--) { + unsigned long tmo = ip_rt_gc_timeout; + unsigned long length; + + i = (i + 1) & rt_hash_mask; + rthp = &rt_hash_table[i].chain; + + if (need_resched()) + cond_resched(); + + samples++; + + if (rcu_dereference_raw(*rthp) == NULL) + continue; + length = 0; + spin_lock_bh(rt_hash_lock_addr(i)); + while ((rth = rcu_dereference_protected(*rthp, + lockdep_is_held(rt_hash_lock_addr(i)))) != NULL) { + prefetch(rth->dst.rt_next); + if (rt_is_expired(rth)) { + *rthp = rth->dst.rt_next; + rt_free(rth); + continue; + } + if (rth->dst.expires) { + /* Entry is expired even if it is in use */ + if (time_before_eq(jiffies, rth->dst.expires)) { +nofree: + tmo >>= 1; + rthp = &rth->dst.rt_next; + /* + * We only count entries on + * a chain with equal hash inputs once + * so that entries for different QOS + * levels, and other non-hash input + * attributes don't unfairly skew + * the length computation + */ + length += has_noalias(rt_hash_table[i].chain, rth); + continue; + } + } else if (!rt_may_expire(rth, tmo, ip_rt_gc_timeout)) + goto nofree; + + /* Cleanup aged off entries. */ + *rthp = rth->dst.rt_next; + rt_free(rth); + } + spin_unlock_bh(rt_hash_lock_addr(i)); + sum += length; + sum2 += length*length; + } + if (samples) { + unsigned long avg = sum / samples; + unsigned long sd = int_sqrt(sum2 / samples - avg*avg); + rt_chain_length_max = max_t(unsigned long, + ip_rt_gc_elasticity, + (avg + 4*sd) >> FRACT_BITS); + } + rover = i; +} + +/* + * rt_worker_func() is run in process context. + * we call rt_check_expire() to scan part of the hash table + */ +static void rt_worker_func(struct work_struct *work) +{ + rt_check_expire(); + schedule_delayed_work(&expires_work, ip_rt_gc_interval); +} + /* * Perturbation of rt_genid by a small quantity [1..256] * Using 8 bits of shuffling ensure we can call rt_cache_invalidate() @@ -3178,6 +3273,13 @@ static ctl_table ipv4_route_table[] = { .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, + { + .procname = "gc_interval", + .data = &ip_rt_gc_interval, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_jiffies, + }, { .procname = "redirect_load", .data = &ip_rt_redirect_load, @@ -3388,6 +3490,11 @@ int __init ip_rt_init(void) devinet_init(); ip_fib_init(); + INIT_DELAYED_WORK_DEFERRABLE(&expires_work, rt_worker_func); + expires_ljiffies = jiffies; + schedule_delayed_work(&expires_work, + net_random() % ip_rt_gc_interval + ip_rt_gc_interval); + if (ip_rt_proc_init()) printk(KERN_ERR "Unable to create route proc files\n"); #ifdef CONFIG_XFRM -- cgit v1.2.3 From c0ed1c14a72ca9ebacd51fb94a8aca488b0d361e Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Wed, 21 Dec 2011 16:48:08 -0500 Subject: net: Add a flow_cache_flush_deferred function MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit flow_cach_flush() might sleep but can be called from atomic context via the xfrm garbage collector. So add a flow_cache_flush_deferred() function and use this if the xfrm garbage colector is invoked from within the packet path. Signed-off-by: Steffen Klassert Acked-by: Timo Teräs Signed-off-by: David S. Miller --- include/net/flow.h | 1 + net/core/flow.c | 12 ++++++++++++ net/xfrm/xfrm_policy.c | 18 ++++++++++++++---- 3 files changed, 27 insertions(+), 4 deletions(-) diff --git a/include/net/flow.h b/include/net/flow.h index a09447749e2..57f15a7f1cd 100644 --- a/include/net/flow.h +++ b/include/net/flow.h @@ -207,6 +207,7 @@ extern struct flow_cache_object *flow_cache_lookup( u8 dir, flow_resolve_t resolver, void *ctx); extern void flow_cache_flush(void); +extern void flow_cache_flush_deferred(void); extern atomic_t flow_cache_genid; #endif diff --git a/net/core/flow.c b/net/core/flow.c index 8ae42de9c79..e318c7e9804 100644 --- a/net/core/flow.c +++ b/net/core/flow.c @@ -358,6 +358,18 @@ void flow_cache_flush(void) put_online_cpus(); } +static void flow_cache_flush_task(struct work_struct *work) +{ + flow_cache_flush(); +} + +static DECLARE_WORK(flow_cache_flush_work, flow_cache_flush_task); + +void flow_cache_flush_deferred(void) +{ + schedule_work(&flow_cache_flush_work); +} + static int __cpuinit flow_cache_cpu_prepare(struct flow_cache *fc, int cpu) { struct flow_cache_percpu *fcp = per_cpu_ptr(fc->percpu, cpu); diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 2118d644663..9049a5caeb2 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -2276,8 +2276,6 @@ static void __xfrm_garbage_collect(struct net *net) { struct dst_entry *head, *next; - flow_cache_flush(); - spin_lock_bh(&xfrm_policy_sk_bundle_lock); head = xfrm_policy_sk_bundles; xfrm_policy_sk_bundles = NULL; @@ -2290,6 +2288,18 @@ static void __xfrm_garbage_collect(struct net *net) } } +static void xfrm_garbage_collect(struct net *net) +{ + flow_cache_flush(); + __xfrm_garbage_collect(net); +} + +static void xfrm_garbage_collect_deferred(struct net *net) +{ + flow_cache_flush_deferred(); + __xfrm_garbage_collect(net); +} + static void xfrm_init_pmtu(struct dst_entry *dst) { do { @@ -2422,7 +2432,7 @@ int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo) if (likely(dst_ops->neigh_lookup == NULL)) dst_ops->neigh_lookup = xfrm_neigh_lookup; if (likely(afinfo->garbage_collect == NULL)) - afinfo->garbage_collect = __xfrm_garbage_collect; + afinfo->garbage_collect = xfrm_garbage_collect_deferred; xfrm_policy_afinfo[afinfo->family] = afinfo; } write_unlock_bh(&xfrm_policy_afinfo_lock); @@ -2516,7 +2526,7 @@ static int xfrm_dev_event(struct notifier_block *this, unsigned long event, void switch (event) { case NETDEV_DOWN: - __xfrm_garbage_collect(dev_net(dev)); + xfrm_garbage_collect(dev_net(dev)); } return NOTIFY_DONE; } -- cgit v1.2.3 From abf058e10c2614c36ba217405768e8e74853fc80 Mon Sep 17 00:00:00 2001 From: David Miller Date: Wed, 21 Dec 2011 17:31:54 -0500 Subject: USB: Fix usb/isp1760 build on sparc This commit: commit 8f5d621543cb064d2989fc223d3c2bc61a43981e Author: Joachim Foerster Date: Mon Oct 10 18:06:54 2011 +0200 usb/isp1760: Let OF bindings depend on general CONFIG_OF instead of PPC_OF . To be able to use the driver on other OF-aware architectures, too. And add necessary OF related #includes to fix compilation error. Signed-off-by: Joachim Foerster Signed-off-by: Greg Kroah-Hartman enabled the build on all CONFIG_OF architectures, but it cannot do this. This driver depends upon CONFIG_OF_IRQ but not all CONFIG_OF platforms support that infrastructure, in particular Sparc does not so the build fails. Please push a patch like the following to Linus so that this code only gets built where it actually should. -------------------- usb/isp1760: Add missing CONFIG_OF_IRQ dependency on OF code. Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/isp1760-if.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c index a7dc1e1d45f..2ac4ac2e4ef 100644 --- a/drivers/usb/host/isp1760-if.c +++ b/drivers/usb/host/isp1760-if.c @@ -18,7 +18,7 @@ #include "isp1760-hcd.h" -#ifdef CONFIG_OF +#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ) #include #include #include @@ -31,7 +31,7 @@ #include #endif -#ifdef CONFIG_OF +#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ) struct isp1760 { struct usb_hcd *hcd; int rst_gpio; @@ -437,7 +437,7 @@ static int __init isp1760_init(void) ret = platform_driver_register(&isp1760_plat_driver); if (!ret) any_ret = 0; -#ifdef CONFIG_OF +#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ) ret = platform_driver_register(&isp1760_of_driver); if (!ret) any_ret = 0; @@ -457,7 +457,7 @@ module_init(isp1760_init); static void __exit isp1760_exit(void) { platform_driver_unregister(&isp1760_plat_driver); -#ifdef CONFIG_OF +#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ) platform_driver_unregister(&isp1760_of_driver); #endif #ifdef CONFIG_PCI -- cgit v1.2.3 From e6f67b8c05f5e129e126f4409ddac6f25f58ffcb Mon Sep 17 00:00:00 2001 From: Dave Kleikamp Date: Wed, 21 Dec 2011 11:05:48 -0600 Subject: vfs: __read_cache_page should use gfp argument rather than GFP_KERNEL lockdep reports a deadlock in jfs because a special inode's rw semaphore is taken recursively. The mapping's gfp mask is GFP_NOFS, but is not used when __read_cache_page() calls add_to_page_cache_lru(). Signed-off-by: Dave Kleikamp Acked-by: Hugh Dickins Acked-by: Al Viro Cc: stable@kernel.org Signed-off-by: Linus Torvalds --- mm/filemap.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/mm/filemap.c b/mm/filemap.c index c106d3b3cc6..5f0a3c91fda 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1828,7 +1828,7 @@ repeat: page = __page_cache_alloc(gfp | __GFP_COLD); if (!page) return ERR_PTR(-ENOMEM); - err = add_to_page_cache_lru(page, mapping, index, GFP_KERNEL); + err = add_to_page_cache_lru(page, mapping, index, gfp); if (unlikely(err)) { page_cache_release(page); if (err == -EEXIST) @@ -1925,10 +1925,7 @@ static struct page *wait_on_page_read(struct page *page) * @gfp: the page allocator flags to use if allocating * * This is the same as "read_mapping_page(mapping, index, NULL)", but with - * any new page allocations done using the specified allocation flags. Note - * that the Radix tree operations will still use GFP_KERNEL, so you can't - * expect to do this atomically or anything like that - but you can pass in - * other page requirements. + * any new page allocations done using the specified allocation flags. * * If the page does not get brought uptodate, return -EIO. */ -- cgit v1.2.3 From e30e2fdfe56288576ee9e04dbb06b4bd5f282203 Mon Sep 17 00:00:00 2001 From: "Srivatsa S. Bhat" Date: Thu, 22 Dec 2011 02:45:29 +0530 Subject: VFS: Fix race between CPU hotplug and lglocks Currently, the *_global_[un]lock_online() routines are not at all synchronized with CPU hotplug. Soft-lockups detected as a consequence of this race was reported earlier at https://lkml.org/lkml/2011/8/24/185. (Thanks to Cong Meng for finding out that the root-cause of this issue is the race condition between br_write_[un]lock() and CPU hotplug, which results in the lock states getting messed up). Fixing this race by just adding {get,put}_online_cpus() at appropriate places in *_global_[un]lock_online() is not a good option, because, then suddenly br_write_[un]lock() would become blocking, whereas they have been kept as non-blocking all this time, and we would want to keep them that way. So, overall, we want to ensure 3 things: 1. br_write_lock() and br_write_unlock() must remain as non-blocking. 2. The corresponding lock and unlock of the per-cpu spinlocks must not happen for different sets of CPUs. 3. Either prevent any new CPU online operation in between this lock-unlock, or ensure that the newly onlined CPU does not proceed with its corresponding per-cpu spinlock unlocked. To achieve all this: (a) We introduce a new spinlock that is taken by the *_global_lock_online() routine and released by the *_global_unlock_online() routine. (b) We register a callback for CPU hotplug notifications, and this callback takes the same spinlock as above. (c) We maintain a bitmap which is close to the cpu_online_mask, and once it is initialized in the lock_init() code, all future updates to it are done in the callback, under the above spinlock. (d) The above bitmap is used (instead of cpu_online_mask) while locking and unlocking the per-cpu locks. The callback takes the spinlock upon the CPU_UP_PREPARE event. So, if the br_write_lock-unlock sequence is in progress, the callback keeps spinning, thus preventing the CPU online operation till the lock-unlock sequence is complete. This takes care of requirement (3). The bitmap that we maintain remains unmodified throughout the lock-unlock sequence, since all updates to it are managed by the callback, which takes the same spinlock as the one taken by the lock code and released only by the unlock routine. Combining this with (d) above, satisfies requirement (2). Overall, since we use a spinlock (mentioned in (a)) to prevent CPU hotplug operations from racing with br_write_lock-unlock, requirement (1) is also taken care of. By the way, it is to be noted that a CPU offline operation can actually run in parallel with our lock-unlock sequence, because our callback doesn't react to notifications earlier than CPU_DEAD (in order to maintain our bitmap properly). And this means, since we use our own bitmap (which is stale, on purpose) during the lock-unlock sequence, we could end up unlocking the per-cpu lock of an offline CPU (because we had locked it earlier, when the CPU was online), in order to satisfy requirement (2). But this is harmless, though it looks a bit awkward. Debugged-by: Cong Meng Signed-off-by: Srivatsa S. Bhat Signed-off-by: Al Viro Cc: stable@vger.kernel.org --- include/linux/lglock.h | 36 ++++++++++++++++++++++++++++++++---- 1 file changed, 32 insertions(+), 4 deletions(-) diff --git a/include/linux/lglock.h b/include/linux/lglock.h index f549056fb20..87f402ccec5 100644 --- a/include/linux/lglock.h +++ b/include/linux/lglock.h @@ -22,6 +22,7 @@ #include #include #include +#include /* can make br locks by using local lock for read side, global lock for write */ #define br_lock_init(name) name##_lock_init() @@ -72,9 +73,31 @@ #define DEFINE_LGLOCK(name) \ \ + DEFINE_SPINLOCK(name##_cpu_lock); \ + cpumask_t name##_cpus __read_mostly; \ DEFINE_PER_CPU(arch_spinlock_t, name##_lock); \ DEFINE_LGLOCK_LOCKDEP(name); \ \ + static int \ + name##_lg_cpu_callback(struct notifier_block *nb, \ + unsigned long action, void *hcpu) \ + { \ + switch (action & ~CPU_TASKS_FROZEN) { \ + case CPU_UP_PREPARE: \ + spin_lock(&name##_cpu_lock); \ + cpu_set((unsigned long)hcpu, name##_cpus); \ + spin_unlock(&name##_cpu_lock); \ + break; \ + case CPU_UP_CANCELED: case CPU_DEAD: \ + spin_lock(&name##_cpu_lock); \ + cpu_clear((unsigned long)hcpu, name##_cpus); \ + spin_unlock(&name##_cpu_lock); \ + } \ + return NOTIFY_OK; \ + } \ + static struct notifier_block name##_lg_cpu_notifier = { \ + .notifier_call = name##_lg_cpu_callback, \ + }; \ void name##_lock_init(void) { \ int i; \ LOCKDEP_INIT_MAP(&name##_lock_dep_map, #name, &name##_lock_key, 0); \ @@ -83,6 +106,11 @@ lock = &per_cpu(name##_lock, i); \ *lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED; \ } \ + register_hotcpu_notifier(&name##_lg_cpu_notifier); \ + get_online_cpus(); \ + for_each_online_cpu(i) \ + cpu_set(i, name##_cpus); \ + put_online_cpus(); \ } \ EXPORT_SYMBOL(name##_lock_init); \ \ @@ -124,9 +152,9 @@ \ void name##_global_lock_online(void) { \ int i; \ - preempt_disable(); \ + spin_lock(&name##_cpu_lock); \ rwlock_acquire(&name##_lock_dep_map, 0, 0, _RET_IP_); \ - for_each_online_cpu(i) { \ + for_each_cpu(i, &name##_cpus) { \ arch_spinlock_t *lock; \ lock = &per_cpu(name##_lock, i); \ arch_spin_lock(lock); \ @@ -137,12 +165,12 @@ void name##_global_unlock_online(void) { \ int i; \ rwlock_release(&name##_lock_dep_map, 1, _RET_IP_); \ - for_each_online_cpu(i) { \ + for_each_cpu(i, &name##_cpus) { \ arch_spinlock_t *lock; \ lock = &per_cpu(name##_lock, i); \ arch_spin_unlock(lock); \ } \ - preempt_enable(); \ + spin_unlock(&name##_cpu_lock); \ } \ EXPORT_SYMBOL(name##_global_unlock_online); \ \ -- cgit v1.2.3 From b9eda06f80b0db61a73bd87c6b0eb67d8aca55ad Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Thu, 22 Dec 2011 17:03:29 +1100 Subject: ipv4: using prefetch requires including prefetch.h Signed-off-by: Stephen Rothwell Acked-by: Eric Dumazet Acked-by: David Miller Signed-off-by: Linus Torvalds --- net/ipv4/route.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 252c512e8a8..85cc053d9d6 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -91,6 +91,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From 19d40dcabf1cdf84e1a76c147b7177b5a6c21943 Mon Sep 17 00:00:00 2001 From: David Miller Date: Wed, 21 Dec 2011 17:38:10 -0500 Subject: pata_of_platform: Add missing CONFIG_OF_IRQ dependency. Signed-off-by: David S. Miller Signed-off-by: Jeff Garzik --- drivers/ata/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 6bdedd7cca2..cf047c406d9 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -820,7 +820,7 @@ config PATA_PLATFORM config PATA_OF_PLATFORM tristate "OpenFirmware platform device PATA support" - depends on PATA_PLATFORM && OF + depends on PATA_PLATFORM && OF && OF_IRQ help This option enables support for generic directly connected ATA devices commonly found on embedded systems with OpenFirmware -- cgit v1.2.3 From 7cc8583372a21d98a23b703ad96cab03180b5030 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 22 Dec 2011 13:23:59 -0800 Subject: sparc64: Fix MSIQ HV call ordering in pci_sun4v_msiq_build_irq(). This silently was working for many years and stopped working on Niagara-T3 machines. We need to set the MSIQ to VALID before we can set it's state to IDLE. On Niagara-T3, setting the state to IDLE first was causing HV_EINVAL errors. The hypervisor documentation says, rather ambiguously, that the MSIQ must be "initialized" before one can set the state. I previously understood this to mean merely that a successful setconf() operation has been performed on the MSIQ, which we have done at this point. But it seems to also mean that it has been set VALID too. Signed-off-by: David S. Miller --- arch/sparc/kernel/pci_sun4v.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c index b272cda35a0..af5755d20fb 100644 --- a/arch/sparc/kernel/pci_sun4v.c +++ b/arch/sparc/kernel/pci_sun4v.c @@ -849,10 +849,10 @@ static int pci_sun4v_msiq_build_irq(struct pci_pbm_info *pbm, if (!irq) return -ENOMEM; - if (pci_sun4v_msiq_setstate(pbm->devhandle, msiqid, HV_MSIQSTATE_IDLE)) - return -EINVAL; if (pci_sun4v_msiq_setvalid(pbm->devhandle, msiqid, HV_MSIQ_VALID)) return -EINVAL; + if (pci_sun4v_msiq_setstate(pbm->devhandle, msiqid, HV_MSIQSTATE_IDLE)) + return -EINVAL; return irq; } -- cgit v1.2.3 From 09cd9270ea52e0f9851528e8ed028073f96b3c34 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 23 Dec 2011 09:56:55 +1100 Subject: md/linear: fix hot-add of devices to linear arrays. commit d70ed2e4fafdbef0800e73942482bb075c21578b broke hot-add to a linear array. After that commit, metadata if not written to devices until they have been fully integrated into the array as determined by saved_raid_disk. That patch arranged to clear that field after a recovery completed. However for linear arrays, there is no recovery - the integration is instantaneous. So we need to explicitly clear the saved_raid_disk field. Signed-off-by: NeilBrown --- drivers/md/linear.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/md/linear.c b/drivers/md/linear.c index c3273efd08c..627456542fb 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -230,6 +230,7 @@ static int linear_add(struct mddev *mddev, struct md_rdev *rdev) return -EINVAL; rdev->raid_disk = rdev->saved_raid_disk; + rdev->saved_raid_disk = -1; newconf = linear_conf(mddev,mddev->raid_disks+1); -- cgit v1.2.3 From 30d7a4836847bdb10b32c78a4879d4aebe0f193b Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 23 Dec 2011 09:57:00 +1100 Subject: md/raid5: ensure correct assessment of drives during degraded reshape. While reshaping a degraded array (as when reshaping a RAID0 by first converting it to a degraded RAID4) we currently get confused about which devices are in_sync. In most cases we get it right, but in the region that is being reshaped we need to treat non-failed devices as in-sync when we have the data but haven't actually written it out yet. Reported-by: Adam Kwolek Signed-off-by: NeilBrown --- drivers/md/raid5.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 31670f8d6b6..858fdbb7eb0 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3065,11 +3065,17 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s) } } else if (test_bit(In_sync, &rdev->flags)) set_bit(R5_Insync, &dev->flags); - else { + else if (sh->sector + STRIPE_SECTORS <= rdev->recovery_offset) /* in sync if before recovery_offset */ - if (sh->sector + STRIPE_SECTORS <= rdev->recovery_offset) - set_bit(R5_Insync, &dev->flags); - } + set_bit(R5_Insync, &dev->flags); + else if (test_bit(R5_UPTODATE, &dev->flags) && + test_bit(R5_Expanded, &dev->flags)) + /* If we've reshaped into here, we assume it is Insync. + * We will shortly update recovery_offset to make + * it official. + */ + set_bit(R5_Insync, &dev->flags); + if (rdev && test_bit(R5_WriteError, &dev->flags)) { clear_bit(R5_Insync, &dev->flags); if (!test_bit(Faulty, &rdev->flags)) { -- cgit v1.2.3 From 60fc13702a1b35118c1548e9c257fa038cecb658 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 23 Dec 2011 09:57:19 +1100 Subject: md: don't give up looking for spares on first failure-to-add Before performing a recovery we try to remove any spares that might not be working, then add any that might have become relevant. Currently we abort on the first spare that cannot be added. This is a false optimisation. It is conceivable that - depending on rules in the personality - a subsequent spare might be accepted. Also the loop does other things like count the available spares and reset the 'recovery_offset' value. If we abort early these might not happen properly. So remove the early abort. In particular if you have an array what is undergoing recovery and which has extra spares, then the recovery may not restart after as reboot as the could of 'spares' might end up as zero. Reported-by: Anssi Hannula Signed-off-by: NeilBrown --- drivers/md/md.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index ee981737edf..f47f1f8ac44 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7360,8 +7360,7 @@ static int remove_and_add_spares(struct mddev *mddev) spares++; md_new_event(mddev); set_bit(MD_CHANGE_DEVS, &mddev->flags); - } else - break; + } } } } -- cgit v1.2.3 From 961902c0f8240175729274cd14198872f42072b7 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 23 Dec 2011 09:57:48 +1100 Subject: md/bitmap: It is OK to clear bits during recovery. commit d0a4bb492772ce5c4bdfba3744a99ed6f6fb238f introduced a regression which is annoying but fairly harmless. When writing to an array that is undergoing recovery (a spare in being integrated into the array), writing to the array will set bits in the bitmap, but they will not be cleared when the write completes. For bits covering areas that have not been recovered yet this is not a problem as the recovery will clear the bits. However bits set in already-recovered region will stay set and never be cleared. This doesn't risk data integrity. The only negatives are: - next time there is a crash, more resyncing than necessary will be done. - the bitmap doesn't look clean, which is confusing. While an array is recovering we don't want to update the 'events_cleared' setting in the bitmap but we do still want to clear bits that have very recently been set - providing they were written to the recovering device. So split those two needs - which previously both depended on 'success' and always clear the bit of the write went to all devices. Signed-off-by: NeilBrown --- drivers/md/bitmap.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index b6907118283..6d03774b176 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1393,9 +1393,6 @@ void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long secto atomic_read(&bitmap->behind_writes), bitmap->mddev->bitmap_info.max_write_behind); } - if (bitmap->mddev->degraded) - /* Never clear bits or update events_cleared when degraded */ - success = 0; while (sectors) { sector_t blocks; @@ -1409,7 +1406,7 @@ void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long secto return; } - if (success && + if (success && !bitmap->mddev->degraded && bitmap->events_cleared < bitmap->mddev->events) { bitmap->events_cleared = bitmap->mddev->events; bitmap->need_sync = 1; -- cgit v1.2.3 From a13861a28b90541aa207532d237e7a940f1b1c7b Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 21 Dec 2011 20:00:32 +0000 Subject: bridge: provide a mtu() method for fake_dst_ops Commit 618f9bc74a039da76 (net: Move mtu handling down to the protocol depended handlers) forgot the bridge netfilter case, adding a NULL dereference in ip_fragment(). Reported-by: Chris Boot CC: Steffen Klassert Signed-off-by: Eric Dumazet Acked-by: Steffen Klassert Signed-off-by: David S. Miller --- net/bridge/br_netfilter.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index d6ec3720c77..08757dc670a 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -114,12 +114,18 @@ static struct neighbour *fake_neigh_lookup(const struct dst_entry *dst, const vo return NULL; } +static unsigned int fake_mtu(const struct dst_entry *dst) +{ + return dst->dev->mtu; +} + static struct dst_ops fake_dst_ops = { .family = AF_INET, .protocol = cpu_to_be16(ETH_P_IP), .update_pmtu = fake_update_pmtu, .cow_metrics = fake_cow_metrics, .neigh_lookup = fake_neigh_lookup, + .mtu = fake_mtu, }; /* -- cgit v1.2.3 From 7838f2ce36b6ab5c13ef20b1857e3bbd567f1759 Mon Sep 17 00:00:00 2001 From: Thomas Graf Date: Thu, 22 Dec 2011 02:05:07 +0000 Subject: mqprio: Avoid panic if no options are provided Userspace may not provide TCA_OPTIONS, in fact tc currently does so not do so if no arguments are specified on the command line. Return EINVAL instead of panicing. Signed-off-by: Thomas Graf Signed-off-by: David S. Miller --- net/sched/sch_mqprio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c index f88256cbacb..28de4309233 100644 --- a/net/sched/sch_mqprio.c +++ b/net/sched/sch_mqprio.c @@ -107,7 +107,7 @@ static int mqprio_init(struct Qdisc *sch, struct nlattr *opt) if (!netif_is_multiqueue(dev)) return -EOPNOTSUPP; - if (nla_len(opt) < sizeof(*qopt)) + if (!opt || nla_len(opt) < sizeof(*qopt)) return -EINVAL; qopt = nla_data(opt); -- cgit v1.2.3 From e688a604807647c9450f9c12a7cb6d027150a895 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 22 Dec 2011 04:15:53 +0000 Subject: net: introduce DST_NOPEER dst flag Chris Boot reported crashes occurring in ipv6_select_ident(). [ 461.457562] RIP: 0010:[] [] ipv6_select_ident+0x31/0xa7 [ 461.578229] Call Trace: [ 461.580742] [ 461.582870] [] ? udp6_ufo_fragment+0x124/0x1a2 [ 461.589054] [] ? ipv6_gso_segment+0xc0/0x155 [ 461.595140] [] ? skb_gso_segment+0x208/0x28b [ 461.601198] [] ? ipv6_confirm+0x146/0x15e [nf_conntrack_ipv6] [ 461.608786] [] ? nf_iterate+0x41/0x77 [ 461.614227] [] ? dev_hard_start_xmit+0x357/0x543 [ 461.620659] [] ? nf_hook_slow+0x73/0x111 [ 461.626440] [] ? br_parse_ip_options+0x19a/0x19a [bridge] [ 461.633581] [] ? dev_queue_xmit+0x3af/0x459 [ 461.639577] [] ? br_dev_queue_push_xmit+0x72/0x76 [bridge] [ 461.646887] [] ? br_nf_post_routing+0x17d/0x18f [bridge] [ 461.653997] [] ? nf_iterate+0x41/0x77 [ 461.659473] [] ? br_flood+0xfa/0xfa [bridge] [ 461.665485] [] ? nf_hook_slow+0x73/0x111 [ 461.671234] [] ? br_flood+0xfa/0xfa [bridge] [ 461.677299] [] ? nf_bridge_update_protocol+0x20/0x20 [bridge] [ 461.684891] [] ? nf_ct_zone+0xa/0x17 [nf_conntrack] [ 461.691520] [] ? br_flood+0xfa/0xfa [bridge] [ 461.697572] [] ? NF_HOOK.constprop.8+0x3c/0x56 [bridge] [ 461.704616] [] ? nf_bridge_push_encap_header+0x1c/0x26 [bridge] [ 461.712329] [] ? br_nf_forward_finish+0x8a/0x95 [bridge] [ 461.719490] [] ? nf_bridge_pull_encap_header+0x1c/0x27 [bridge] [ 461.727223] [] ? br_nf_forward_ip+0x1c0/0x1d4 [bridge] [ 461.734292] [] ? nf_iterate+0x41/0x77 [ 461.739758] [] ? __br_deliver+0xa0/0xa0 [bridge] [ 461.746203] [] ? nf_hook_slow+0x73/0x111 [ 461.751950] [] ? __br_deliver+0xa0/0xa0 [bridge] [ 461.758378] [] ? NF_HOOK.constprop.4+0x56/0x56 [bridge] This is caused by bridge netfilter special dst_entry (fake_rtable), a special shared entry, where attaching an inetpeer makes no sense. Problem is present since commit 87c48fa3b46 (ipv6: make fragment identifications less predictable) Introduce DST_NOPEER dst flag and make sure ipv6_select_ident() and __ip_select_ident() fallback to the 'no peer attached' handling. Reported-by: Chris Boot Tested-by: Chris Boot Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/net/dst.h | 1 + net/bridge/br_netfilter.c | 2 +- net/ipv4/route.c | 4 ++-- net/ipv6/ip6_output.c | 2 +- 4 files changed, 5 insertions(+), 4 deletions(-) diff --git a/include/net/dst.h b/include/net/dst.h index 6faec1a6021..75766b42660 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -53,6 +53,7 @@ struct dst_entry { #define DST_NOHASH 0x0008 #define DST_NOCACHE 0x0010 #define DST_NOCOUNT 0x0020 +#define DST_NOPEER 0x0040 short error; short obsolete; diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index 08757dc670a..fa8b8f76358 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -147,7 +147,7 @@ void br_netfilter_rtable_init(struct net_bridge *br) rt->dst.dev = br->dev; rt->dst.path = &rt->dst; dst_init_metrics(&rt->dst, br_dst_default_metrics, true); - rt->dst.flags = DST_NOXFRM; + rt->dst.flags = DST_NOXFRM | DST_NOPEER; rt->dst.ops = &fake_dst_ops; } diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 85cc053d9d6..94cdbc55ca7 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1367,7 +1367,7 @@ void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more) { struct rtable *rt = (struct rtable *) dst; - if (rt) { + if (rt && !(rt->dst.flags & DST_NOPEER)) { if (rt->peer == NULL) rt_bind_peer(rt, rt->rt_dst, 1); @@ -1378,7 +1378,7 @@ void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more) iph->id = htons(inet_getid(rt->peer, more)); return; } - } else + } else if (!rt) printk(KERN_DEBUG "rt_bind_peer(0) @%p\n", __builtin_return_address(0)); diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 84d0bd5cac9..ec562713db9 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -603,7 +603,7 @@ void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt) static atomic_t ipv6_fragmentation_id; int old, new; - if (rt) { + if (rt && !(rt->dst.flags & DST_NOPEER)) { struct inet_peer *peer; if (!rt->rt6i_peer) -- cgit v1.2.3 From a0a129f8b6cff54ab479324a54aefdab5db4f240 Mon Sep 17 00:00:00 2001 From: Xi Wang Date: Thu, 22 Dec 2011 13:35:22 +0000 Subject: rps: fix insufficient bounds checking in store_rps_dev_flow_table_cnt() Setting a large rps_flow_cnt like (1 << 30) on 32-bit platform will cause a kernel oops due to insufficient bounds checking. if (count > 1<<30) { /* Enforce a limit to prevent overflow */ return -EINVAL; } count = roundup_pow_of_two(count); table = vmalloc(RPS_DEV_FLOW_TABLE_SIZE(count)); Note that the macro RPS_DEV_FLOW_TABLE_SIZE(count) is defined as: ... + (count * sizeof(struct rps_dev_flow)) where sizeof(struct rps_dev_flow) is 8. (1 << 30) * 8 will overflow 32 bits. This patch replaces the magic number (1 << 30) with a symbolic bound. Suggested-by: Eric Dumazet Signed-off-by: Xi Wang Signed-off-by: David S. Miller --- net/core/net-sysfs.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index c71c434a4c0..385aefe5364 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -665,11 +665,14 @@ static ssize_t store_rps_dev_flow_table_cnt(struct netdev_rx_queue *queue, if (count) { int i; - if (count > 1<<30) { + if (count > INT_MAX) + return -EINVAL; + count = roundup_pow_of_two(count); + if (count > (ULONG_MAX - sizeof(struct rps_dev_flow_table)) + / sizeof(struct rps_dev_flow)) { /* Enforce a limit to prevent overflow */ return -EINVAL; } - count = roundup_pow_of_two(count); table = vmalloc(RPS_DEV_FLOW_TABLE_SIZE(count)); if (!table) return -ENOMEM; -- cgit v1.2.3 From 0fd7bac6b6157eed6cf0cb86a1e88ba29e57c033 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 21 Dec 2011 07:11:44 +0000 Subject: net: relax rcvbuf limits skb->truesize might be big even for a small packet. Its even bigger after commit 87fb4b7b533 (net: more accurate skb truesize) and big MTU. We should allow queueing at least one packet per receiver, even with a low RCVBUF setting. Reported-by: Michal Simek Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/net/sock.h | 4 +++- net/core/sock.c | 6 +----- net/packet/af_packet.c | 6 ++---- 3 files changed, 6 insertions(+), 10 deletions(-) diff --git a/include/net/sock.h b/include/net/sock.h index abb6e0f0c3c..32e39371fba 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -637,12 +637,14 @@ static inline void __sk_add_backlog(struct sock *sk, struct sk_buff *skb) /* * Take into account size of receive queue and backlog queue + * Do not take into account this skb truesize, + * to allow even a single big packet to come. */ static inline bool sk_rcvqueues_full(const struct sock *sk, const struct sk_buff *skb) { unsigned int qsize = sk->sk_backlog.len + atomic_read(&sk->sk_rmem_alloc); - return qsize + skb->truesize > sk->sk_rcvbuf; + return qsize > sk->sk_rcvbuf; } /* The per-socket spinlock must be held here. */ diff --git a/net/core/sock.c b/net/core/sock.c index 4ed7b1d12f5..b23f174ab84 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -288,11 +288,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) unsigned long flags; struct sk_buff_head *list = &sk->sk_receive_queue; - /* Cast sk->rcvbuf to unsigned... It's pointless, but reduces - number of warnings when compiling with -W --ANK - */ - if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >= - (unsigned)sk->sk_rcvbuf) { + if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) { atomic_inc(&sk->sk_drops); trace_sock_rcvqueue_full(sk, skb); return -ENOMEM; diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 82a6f34d39d..3891702b81d 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1630,8 +1630,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, if (snaplen > res) snaplen = res; - if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >= - (unsigned)sk->sk_rcvbuf) + if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) goto drop_n_acct; if (skb_shared(skb)) { @@ -1762,8 +1761,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, if (po->tp_version <= TPACKET_V2) { if (macoff + snaplen > po->rx_ring.frame_size) { if (po->copy_thresh && - atomic_read(&sk->sk_rmem_alloc) + skb->truesize - < (unsigned)sk->sk_rcvbuf) { + atomic_read(&sk->sk_rmem_alloc) < sk->sk_rcvbuf) { if (skb_shared(skb)) { copy_skb = skb_clone(skb, GFP_ATOMIC); } else { -- cgit v1.2.3 From 8d532b2afb2eacc84588db709ec280a3d1219be3 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Fri, 23 Dec 2011 07:53:00 -0500 Subject: Btrfs: fix worker lock misuse in find_worker Dan Carpenter noticed that we were doing a double unlock on the worker lock, and sometimes picking a worker thread without the lock held. This fixes both errors. Signed-off-by: Chris Mason Reported-by: Dan Carpenter --- fs/btrfs/async-thread.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c index cb97174e236..0b394580d86 100644 --- a/fs/btrfs/async-thread.c +++ b/fs/btrfs/async-thread.c @@ -563,8 +563,8 @@ static struct btrfs_worker_thread *find_worker(struct btrfs_workers *workers) struct list_head *fallback; int ret; -again: spin_lock_irqsave(&workers->lock, flags); +again: worker = next_worker(workers); if (!worker) { @@ -579,6 +579,7 @@ again: spin_unlock_irqrestore(&workers->lock, flags); /* we're below the limit, start another worker */ ret = __btrfs_start_workers(workers); + spin_lock_irqsave(&workers->lock, flags); if (ret) goto fallback; goto again; -- cgit v1.2.3 From 08c422c27f855d27b0b3d9fa30ebd938d4ae6f1f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 23 Dec 2011 07:58:13 -0500 Subject: Btrfs: call d_instantiate after all ops are setup This closes races where btrfs is calling d_instantiate too soon during inode creation. All of the callers of btrfs_add_nondir are updated to instantiate after the inode is fully setup in memory. Signed-off-by: Al Viro Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 740e67bbe24..13b0542015f 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4590,10 +4590,6 @@ static int btrfs_add_nondir(struct btrfs_trans_handle *trans, int err = btrfs_add_link(trans, dir, inode, dentry->d_name.name, dentry->d_name.len, backref, index); - if (!err) { - d_instantiate(dentry, inode); - return 0; - } if (err > 0) err = -EEXIST; return err; @@ -4655,6 +4651,7 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry, else { init_special_inode(inode, inode->i_mode, rdev); btrfs_update_inode(trans, root, inode); + d_instantiate(dentry, inode); } out_unlock: nr = trans->blocks_used; @@ -4722,6 +4719,7 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry, inode->i_mapping->a_ops = &btrfs_aops; inode->i_mapping->backing_dev_info = &root->fs_info->bdi; BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops; + d_instantiate(dentry, inode); } out_unlock: nr = trans->blocks_used; @@ -4779,6 +4777,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *parent = dentry->d_parent; err = btrfs_update_inode(trans, root, inode); BUG_ON(err); + d_instantiate(dentry, inode); btrfs_log_new_name(trans, inode, NULL, parent); } @@ -7245,6 +7244,8 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry, drop_inode = 1; out_unlock: + if (!err) + d_instantiate(dentry, inode); nr = trans->blocks_used; btrfs_end_transaction_throttle(trans, root); if (drop_inode) { -- cgit v1.2.3 From 0354b48f633ae435acbc01b470a1ce8cfeff3e9f Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Fri, 16 Dec 2011 18:35:15 +0100 Subject: netfilter: xt_connbytes: handle negation correctly "! --connbytes 23:42" should match if the packet/byte count is not in range. As there is no explict "invert match" toggle in the match structure, userspace swaps the from and to arguments (i.e., as if "--connbytes 42:23" were given). However, "what <= 23 && what >= 42" will always be false. Change things so we use "||" in case "from" is larger than "to". This change may look like it breaks backwards compatibility when "to" is 0. However, older iptables binaries will refuse "connbytes 42:0", and current releases treat it to mean "! --connbytes 0:42", so we should be fine. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/netfilter/xt_connbytes.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/netfilter/xt_connbytes.c b/net/netfilter/xt_connbytes.c index 5b138506690..9ddf1c3bfb3 100644 --- a/net/netfilter/xt_connbytes.c +++ b/net/netfilter/xt_connbytes.c @@ -87,10 +87,10 @@ connbytes_mt(const struct sk_buff *skb, struct xt_action_param *par) break; } - if (sinfo->count.to) + if (sinfo->count.to >= sinfo->count.from) return what <= sinfo->count.to && what >= sinfo->count.from; - else - return what >= sinfo->count.from; + else /* inverted */ + return what < sinfo->count.to || what > sinfo->count.from; } static int connbytes_mt_check(const struct xt_mtchk_param *par) -- cgit v1.2.3 From 5f0a6e2d503896062f641639dacfe5055c2f593b Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 23 Dec 2011 21:51:06 -0800 Subject: Linux 3.2-rc7 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index a43733df397..ea51081812f 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 2 SUBLEVEL = 0 -EXTRAVERSION = -rc6 +EXTRAVERSION = -rc7 NAME = Saber-toothed Squirrel # *DOCUMENTATION* -- cgit v1.2.3 From dece904d74800d109f1bb06b55758169b1bcc140 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Fri, 9 Dec 2011 14:12:53 -0600 Subject: gpio: pl061: use chained_irq_* functions in irq handler Use chained_irq_enter/exit helper functions instead of direct pointer accesses. This is needed for generic irq chip conversion. Signed-off-by: Rob Herring Acked-by: Grant Likely Cc: Linus Walleij --- drivers/gpio/gpio-pl061.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index 4102f63230f..0f718f9bbd8 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -23,6 +23,7 @@ #include #include #include +#include #define GPIODIR 0x400 #define GPIOIS 0x404 @@ -211,8 +212,9 @@ static void pl061_irq_handler(unsigned irq, struct irq_desc *desc) struct list_head *chip_list = irq_get_handler_data(irq); struct list_head *ptr; struct pl061_gpio *chip; + struct irq_chip *irqchip = irq_desc_get_chip(desc); - desc->irq_data.chip->irq_ack(&desc->irq_data); + chained_irq_enter(irqchip, desc); list_for_each(ptr, chip_list) { unsigned long pending; int offset; @@ -227,7 +229,7 @@ static void pl061_irq_handler(unsigned irq, struct irq_desc *desc) for_each_set_bit(offset, &pending, PL061_GPIO_NR) generic_handle_irq(pl061_to_irq(&chip->gc, offset)); } - desc->irq_data.chip->irq_unmask(&desc->irq_data); + chained_irq_exit(irqchip, desc); } static int pl061_probe(struct amba_device *dev, const struct amba_id *id) -- cgit v1.2.3 From f2ab2ba09e081fbce068c0adc205ad3f25a3b626 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Fri, 9 Dec 2011 14:11:41 -0600 Subject: gpio: pl061: convert to use 0 for no irq We don't want drivers using NO_IRQ, so remove its use. For now, 0 or -1 means no irq until platforms are converted to use 0. Signed-off-by: Rob Herring Acked-by: Grant Likely Cc: Linus Walleij --- drivers/gpio/gpio-pl061.c | 8 ++++---- include/linux/amba/pl061.h | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index 0f718f9bbd8..fe19dec4b11 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -53,7 +53,7 @@ struct pl061_gpio { spinlock_t irq_lock; /* IRQ registers */ void __iomem *base; - unsigned irq_base; + int irq_base; struct gpio_chip gc; }; @@ -119,7 +119,7 @@ static int pl061_to_irq(struct gpio_chip *gc, unsigned offset) { struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc); - if (chip->irq_base == NO_IRQ) + if (chip->irq_base <= 0) return -EINVAL; return chip->irq_base + offset; @@ -250,7 +250,7 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id) chip->irq_base = pdata->irq_base; } else if (dev->dev.of_node) { chip->gc.base = -1; - chip->irq_base = NO_IRQ; + chip->irq_base = 0; } else { ret = -ENODEV; goto free_mem; @@ -290,7 +290,7 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id) * irq_chip support */ - if (chip->irq_base == NO_IRQ) + if (chip->irq_base <= 0) return 0; writeb(0, chip->base + GPIOIE); /* disable irqs */ diff --git a/include/linux/amba/pl061.h b/include/linux/amba/pl061.h index 2412af944f1..fb83c045348 100644 --- a/include/linux/amba/pl061.h +++ b/include/linux/amba/pl061.h @@ -7,7 +7,7 @@ struct pl061_platform_data { unsigned gpio_base; /* number of the first IRQ. - * If the IRQ functionality in not desired this must be set to NO_IRQ. + * If the IRQ functionality in not desired this must be set to 0. */ unsigned irq_base; -- cgit v1.2.3 From 2b84112718ea816bb1147d6eabd4469143f89ddd Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Fri, 9 Dec 2011 14:04:02 -0600 Subject: ARM: realview: convert pl061 no irq to 0 instead of -1 Drivers should use 0 for no irq, so convert realview platforms pl061 platform_data over to use 0. Signed-off-by: Rob Herring Acked-by: Grant Likely Cc: Russell King --- arch/arm/mach-realview/realview_eb.c | 3 --- arch/arm/mach-realview/realview_pb1176.c | 3 --- arch/arm/mach-realview/realview_pb11mp.c | 3 --- arch/arm/mach-realview/realview_pba8.c | 3 --- arch/arm/mach-realview/realview_pbx.c | 3 --- 5 files changed, 15 deletions(-) diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c index 026c66ad7ec..57f5bacb4b8 100644 --- a/arch/arm/mach-realview/realview_eb.c +++ b/arch/arm/mach-realview/realview_eb.c @@ -117,17 +117,14 @@ static void __init realview_eb_map_io(void) static struct pl061_platform_data gpio0_plat_data = { .gpio_base = 0, - .irq_base = -1, }; static struct pl061_platform_data gpio1_plat_data = { .gpio_base = 8, - .irq_base = -1, }; static struct pl061_platform_data gpio2_plat_data = { .gpio_base = 16, - .irq_base = -1, }; static struct pl022_ssp_controller ssp0_plat_data = { diff --git a/arch/arm/mach-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c index c057540ec77..22676966410 100644 --- a/arch/arm/mach-realview/realview_pb1176.c +++ b/arch/arm/mach-realview/realview_pb1176.c @@ -113,17 +113,14 @@ static void __init realview_pb1176_map_io(void) static struct pl061_platform_data gpio0_plat_data = { .gpio_base = 0, - .irq_base = -1, }; static struct pl061_platform_data gpio1_plat_data = { .gpio_base = 8, - .irq_base = -1, }; static struct pl061_platform_data gpio2_plat_data = { .gpio_base = 16, - .irq_base = -1, }; static struct pl022_ssp_controller ssp0_plat_data = { diff --git a/arch/arm/mach-realview/realview_pb11mp.c b/arch/arm/mach-realview/realview_pb11mp.c index 671ad6d6ff0..8622dbbe234 100644 --- a/arch/arm/mach-realview/realview_pb11mp.c +++ b/arch/arm/mach-realview/realview_pb11mp.c @@ -112,17 +112,14 @@ static void __init realview_pb11mp_map_io(void) static struct pl061_platform_data gpio0_plat_data = { .gpio_base = 0, - .irq_base = -1, }; static struct pl061_platform_data gpio1_plat_data = { .gpio_base = 8, - .irq_base = -1, }; static struct pl061_platform_data gpio2_plat_data = { .gpio_base = 16, - .irq_base = -1, }; static struct pl022_ssp_controller ssp0_plat_data = { diff --git a/arch/arm/mach-realview/realview_pba8.c b/arch/arm/mach-realview/realview_pba8.c index cbf22df4ad5..6f9511d8760 100644 --- a/arch/arm/mach-realview/realview_pba8.c +++ b/arch/arm/mach-realview/realview_pba8.c @@ -102,17 +102,14 @@ static void __init realview_pba8_map_io(void) static struct pl061_platform_data gpio0_plat_data = { .gpio_base = 0, - .irq_base = -1, }; static struct pl061_platform_data gpio1_plat_data = { .gpio_base = 8, - .irq_base = -1, }; static struct pl061_platform_data gpio2_plat_data = { .gpio_base = 16, - .irq_base = -1, }; static struct pl022_ssp_controller ssp0_plat_data = { diff --git a/arch/arm/mach-realview/realview_pbx.c b/arch/arm/mach-realview/realview_pbx.c index 63c4114afae..be3a01fe00b 100644 --- a/arch/arm/mach-realview/realview_pbx.c +++ b/arch/arm/mach-realview/realview_pbx.c @@ -124,17 +124,14 @@ static void __init realview_pbx_map_io(void) static struct pl061_platform_data gpio0_plat_data = { .gpio_base = 0, - .irq_base = -1, }; static struct pl061_platform_data gpio1_plat_data = { .gpio_base = 8, - .irq_base = -1, }; static struct pl061_platform_data gpio2_plat_data = { .gpio_base = 16, - .irq_base = -1, }; static struct pl022_ssp_controller ssp0_plat_data = { -- cgit v1.2.3 From 3ab52475447641a6facf6ee5450bea24e477b811 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Fri, 21 Oct 2011 08:05:53 -0500 Subject: gpio: pl061: convert to use generic irq chip Convert the pl061 irq_chip code to use the generic irq chip code. This has the side effect of using 32-bit accesses rather than 8-bit accesses to interrupt registers. The h/w TRM and testing seem to indicate this is fine. Signed-off-by: Rob Herring Acked-by: Grant Likely Acked-by: Linus Walleij --- drivers/gpio/Kconfig | 1 + drivers/gpio/gpio-pl061.c | 74 +++++++++++++++++------------------------------ 2 files changed, 27 insertions(+), 48 deletions(-) diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 8482a23887d..4d433e2995f 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -138,6 +138,7 @@ config GPIO_MXS config GPIO_PL061 bool "PrimeCell PL061 GPIO support" depends on ARM_AMBA + select GENERIC_IRQ_CHIP help Say yes here to support the PrimeCell PL061 GPIO device diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index fe19dec4b11..96ff6b28e9a 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -50,10 +50,10 @@ struct pl061_gpio { * the IRQ code simpler. */ spinlock_t lock; /* GPIO registers */ - spinlock_t irq_lock; /* IRQ registers */ void __iomem *base; int irq_base; + struct irq_chip_generic *irq_gc; struct gpio_chip gc; }; @@ -125,40 +125,10 @@ static int pl061_to_irq(struct gpio_chip *gc, unsigned offset) return chip->irq_base + offset; } -/* - * PL061 GPIO IRQ - */ -static void pl061_irq_disable(struct irq_data *d) -{ - struct pl061_gpio *chip = irq_data_get_irq_chip_data(d); - int offset = d->irq - chip->irq_base; - unsigned long flags; - u8 gpioie; - - spin_lock_irqsave(&chip->irq_lock, flags); - gpioie = readb(chip->base + GPIOIE); - gpioie &= ~(1 << offset); - writeb(gpioie, chip->base + GPIOIE); - spin_unlock_irqrestore(&chip->irq_lock, flags); -} - -static void pl061_irq_enable(struct irq_data *d) -{ - struct pl061_gpio *chip = irq_data_get_irq_chip_data(d); - int offset = d->irq - chip->irq_base; - unsigned long flags; - u8 gpioie; - - spin_lock_irqsave(&chip->irq_lock, flags); - gpioie = readb(chip->base + GPIOIE); - gpioie |= 1 << offset; - writeb(gpioie, chip->base + GPIOIE); - spin_unlock_irqrestore(&chip->irq_lock, flags); -} - static int pl061_irq_type(struct irq_data *d, unsigned trigger) { - struct pl061_gpio *chip = irq_data_get_irq_chip_data(d); + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct pl061_gpio *chip = gc->private; int offset = d->irq - chip->irq_base; unsigned long flags; u8 gpiois, gpioibe, gpioiev; @@ -166,7 +136,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger) if (offset < 0 || offset >= PL061_GPIO_NR) return -EINVAL; - spin_lock_irqsave(&chip->irq_lock, flags); + raw_spin_lock_irqsave(&gc->lock, flags); gpioiev = readb(chip->base + GPIOIEV); @@ -195,18 +165,11 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger) writeb(gpioiev, chip->base + GPIOIEV); - spin_unlock_irqrestore(&chip->irq_lock, flags); + raw_spin_unlock_irqrestore(&gc->lock, flags); return 0; } -static struct irq_chip pl061_irqchip = { - .name = "GPIO", - .irq_enable = pl061_irq_enable, - .irq_disable = pl061_irq_disable, - .irq_set_type = pl061_irq_type, -}; - static void pl061_irq_handler(unsigned irq, struct irq_desc *desc) { struct list_head *chip_list = irq_get_handler_data(irq); @@ -232,6 +195,25 @@ static void pl061_irq_handler(unsigned irq, struct irq_desc *desc) chained_irq_exit(irqchip, desc); } +static void __init pl061_init_gc(struct pl061_gpio *chip, int irq_base) +{ + struct irq_chip_type *ct; + + chip->irq_gc = irq_alloc_generic_chip("gpio-pl061", 1, irq_base, + chip->base, handle_simple_irq); + chip->irq_gc->private = chip; + + ct = chip->irq_gc->chip_types; + ct->chip.irq_mask = irq_gc_mask_clr_bit; + ct->chip.irq_unmask = irq_gc_mask_set_bit; + ct->chip.irq_set_type = pl061_irq_type; + ct->chip.irq_set_wake = irq_gc_set_wake; + ct->regs.mask = GPIOIE; + + irq_setup_generic_chip(chip->irq_gc, IRQ_MSK(PL061_GPIO_NR), + IRQ_GC_INIT_NESTED_LOCK, IRQ_NOREQUEST, 0); +} + static int pl061_probe(struct amba_device *dev, const struct amba_id *id) { struct pl061_platform_data *pdata; @@ -269,7 +251,6 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id) } spin_lock_init(&chip->lock); - spin_lock_init(&chip->irq_lock); INIT_LIST_HEAD(&chip->list); chip->gc.direction_input = pl061_direction_input; @@ -293,6 +274,8 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id) if (chip->irq_base <= 0) return 0; + pl061_init_gc(chip, chip->irq_base); + writeb(0, chip->base + GPIOIE); /* disable irqs */ irq = dev->irq[0]; if (irq < 0) { @@ -321,11 +304,6 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id) else pl061_direction_input(&chip->gc, i); } - - irq_set_chip_and_handler(i + chip->irq_base, &pl061_irqchip, - handle_simple_irq); - set_irq_flags(i+chip->irq_base, IRQF_VALID); - irq_set_chip_data(i + chip->irq_base, chip); } return 0; -- cgit v1.2.3 From 2de0dbc5f6830e7659083d1929f57cb88b16a3b6 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Wed, 4 Jan 2012 10:36:07 -0600 Subject: gpio: pl061: remove combined interrupt Drivers should not have a dependency on NR_IRQS. Doing so may break with SPARSE_IRQ enabled. As there are no in kernel users of the pl061 which have multiple instances with their interrupts combined to a single parent interrupt, remove this functionality. If this capability is needed later, it could be supported more cleanly by just using a devicetree property. Signed-off-by: Rob Herring Reviewed-by: Viresh Kumar Cc: Rajeev Kumar Acked-by: Baruch Siach Cc: Linus Walleij Cc: Grant Likely --- drivers/gpio/gpio-pl061.c | 44 ++++++++------------------------------------ 1 file changed, 8 insertions(+), 36 deletions(-) diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index 96ff6b28e9a..23065f6b3de 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -12,7 +12,6 @@ #include #include #include -#include #include #include #include @@ -37,13 +36,6 @@ #define PL061_GPIO_NR 8 struct pl061_gpio { - /* We use a list of pl061_gpio structs for each trigger IRQ in the main - * interrupts controller of the system. We need this to support systems - * in which more that one PL061s are connected to the same IRQ. The ISR - * interates through this list to find the source of the interrupt. - */ - struct list_head list; - /* Each of the two spinlocks protects a different set of hardware * regiters and data structurs. This decouples the code of the IRQ from * the GPIO code. This also makes the case of a GPIO routine call from @@ -172,26 +164,20 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger) static void pl061_irq_handler(unsigned irq, struct irq_desc *desc) { - struct list_head *chip_list = irq_get_handler_data(irq); - struct list_head *ptr; - struct pl061_gpio *chip; + unsigned long pending; + int offset; + struct pl061_gpio *chip = irq_desc_get_handler_data(desc); struct irq_chip *irqchip = irq_desc_get_chip(desc); chained_irq_enter(irqchip, desc); - list_for_each(ptr, chip_list) { - unsigned long pending; - int offset; - - chip = list_entry(ptr, struct pl061_gpio, list); - pending = readb(chip->base + GPIOMIS); - writeb(pending, chip->base + GPIOIC); - - if (pending == 0) - continue; + pending = readb(chip->base + GPIOMIS); + writeb(pending, chip->base + GPIOIC); + if (pending) { for_each_set_bit(offset, &pending, PL061_GPIO_NR) generic_handle_irq(pl061_to_irq(&chip->gc, offset)); } + chained_irq_exit(irqchip, desc); } @@ -218,9 +204,7 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id) { struct pl061_platform_data *pdata; struct pl061_gpio *chip; - struct list_head *chip_list; int ret, irq, i; - static DECLARE_BITMAP(init_irq, NR_IRQS); chip = kzalloc(sizeof(*chip), GFP_KERNEL); if (chip == NULL) @@ -251,7 +235,6 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id) } spin_lock_init(&chip->lock); - INIT_LIST_HEAD(&chip->list); chip->gc.direction_input = pl061_direction_input; chip->gc.direction_output = pl061_direction_output; @@ -283,18 +266,7 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id) goto iounmap; } irq_set_chained_handler(irq, pl061_irq_handler); - if (!test_and_set_bit(irq, init_irq)) { /* list initialized? */ - chip_list = kmalloc(sizeof(*chip_list), GFP_KERNEL); - if (chip_list == NULL) { - clear_bit(irq, init_irq); - ret = -ENOMEM; - goto iounmap; - } - INIT_LIST_HEAD(chip_list); - irq_set_handler_data(irq, chip_list); - } else - chip_list = irq_get_handler_data(irq); - list_add(&chip->list, chip_list); + irq_set_handler_data(irq, chip); for (i = 0; i < PL061_GPIO_NR; i++) { if (pdata) { -- cgit v1.2.3