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2012-12-12Thermal: fix a NULL pointer dereference when generic thermal layer is built ↵Zhang Rui
as a module [ 12.761956] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 [ 12.762016] IP: [<ffffffffa0005277>] handle_thermal_trip+0x47/0x130 [thermal_sys] [ 12.762060] PGD 1fec74067 PUD 1fee5b067 PMD 0 [ 12.762127] Oops: 0000 [#1] SMP [ 12.762177] Modules linked in: hid_generic crc32c_intel usbhid hid firewire_ohci(+) e1000e(+) firewire_core crc_itu_t xhci_hcd(+) thermal(+) fan thermal_sys hwmon [ 12.762423] CPU 1 [ 12.762443] Pid: 187, comm: modprobe Tainted: G A 3.7.0-thermal-module+ #25 /DH77DF [ 12.762496] RIP: 0010:[<ffffffffa0005277>] [<ffffffffa0005277>] handle_thermal_trip+0x47/0x130 [thermal_sys] [ 12.762682] RSP: 0018:ffff8801fe7ddc18 EFLAGS: 00010282 [ 12.762704] RAX: 0000000000000000 RBX: ffff8801ff3e9c00 RCX: ffff8801fdc39800 [ 12.762728] RDX: ffff8801fe7ddc24 RSI: 0000000000000001 RDI: ffff8801ff3e9c00 [ 12.762764] RBP: ffff8801fe7ddc48 R08: 0000000004000000 R09: ffffffffa001f568 [ 12.762797] R10: ffffffff81363083 R11: 0000000000000001 R12: 0000000000000001 [ 12.762832] R13: 0000000000000000 R14: 0000000000000001 R15: ffff8801fde73e68 [ 12.762866] FS: 00007f5548516700(0000) GS:ffff88021f240000(0000) knlGS:0000000000000000 [ 12.762912] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.762946] CR2: 0000000000000018 CR3: 00000001fefe2000 CR4: 00000000001407e0 [ 12.762979] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 12.763014] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 12.763048] Process modprobe (pid: 187, threadinfo ffff8801fe7dc000, task ffff8801fe5bdb40) [ 12.763095] Stack: [ 12.763122] 0000000000019640 00000000fdc39800 ffff8801fe7ddc48 ffff8801ff3e9c00 [ 12.763225] 0000000000000002 0000000000000000 ffff8801fe7ddc78 ffffffffa00053e7 [ 12.763338] ffff8801ff3e9c00 0000000000006c98 ffffffffa0007480 ffff8801ff3e9c00 [ 12.763440] Call Trace: [ 12.763470] [<ffffffffa00053e7>] thermal_zone_device_update+0x77/0xa0 [thermal_sys] [ 12.763515] [<ffffffffa0006d38>] thermal_zone_device_register+0x788/0xa88 [thermal_sys] [ 12.763562] [<ffffffffa001f394>] acpi_thermal_add+0x360/0x4c8 [thermal] [ 12.763598] [<ffffffff8133902a>] acpi_device_probe+0x50/0x190 [ 12.763632] [<ffffffff811bd793>] ? sysfs_create_link+0x13/0x20 [ 12.763666] [<ffffffff813cc41b>] driver_probe_device+0x7b/0x240 [ 12.763699] [<ffffffff813cc68b>] __driver_attach+0xab/0xb0 [ 12.763732] [<ffffffff813cc5e0>] ? driver_probe_device+0x240/0x240 [ 12.763766] [<ffffffff813ca836>] bus_for_each_dev+0x56/0x90 [ 12.763799] [<ffffffff813cbf4e>] driver_attach+0x1e/0x20 [ 12.763831] [<ffffffff813cbac0>] bus_add_driver+0x190/0x290 [ 12.763864] [<ffffffffa0022000>] ? 0xffffffffa0021fff [ 12.763896] [<ffffffff813ccbea>] driver_register+0x7a/0x160 [ 12.763928] [<ffffffffa0022000>] ? 0xffffffffa0021fff [ 12.763960] [<ffffffff813399fb>] acpi_bus_register_driver+0x43/0x45 [ 12.763995] [<ffffffffa002203a>] acpi_thermal_init+0x3a/0x42 [thermal] [ 12.764029] [<ffffffff8100207f>] do_one_initcall+0x3f/0x170 [ 12.764063] [<ffffffff810b1a5f>] sys_init_module+0x8f/0x200 [ 12.764097] [<ffffffff815ff259>] system_call_fastpath+0x16/0x1b [ 12.764129] Code: 48 8b 87 c8 02 00 00 41 89 f4 48 8d 55 dc ff 50 28 44 8b 6d dc 41 8d 45 fe 83 f8 01 76 5e 48 8b 83 d8 02 00 00 44 89 e6 48 89 df <ff> 50 18 4c 8d a3 10 03 00 00 4c 89 e7 e8 87 f1 5e e1 8b 83 bc [ 12.765164] RIP [<ffffffffa0005277>] handle_thermal_trip+0x47/0x130 [thermal_sys] [ 12.765223] RSP <ffff8801fe7ddc18> [ 12.765252] CR2: 0000000000000018 [ 12.765284] ---[ end trace 7723294cdfb00d2a ]--- This is because thermal_zone_device_update() is invoked before any thermal governors being registered. Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-26thermal: rcar: add rcar_zone_to_priv() macroKuninori Morimoto
This patch adds rcar_zone_to_priv() which is a helper macro for gettign private data. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-26thermal: rcar: fixup the unit of temperatureKuninori Morimoto
The unit of temperature is Milli-Celsius. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-22thermal: cpu cooling: allow module buildsEduardo Valentin
As thermal drivers can be built as modules and also the thermal framework itself, building cpu cooling only as built-in can cause linking errors. For instance: * Generic Thermal sysfs driver * Generic Thermal sysfs driver (THERMAL) [M/n/y/?] m generic cpu cooling support (CPU_THERMAL) [N/y/?] (NEW) y with the following drive: CONFIG_OMAP_BANDGAP=m generates: ERROR: "cpufreq_cooling_unregister" [drivers/staging/omap-thermal/omap-thermal.ko] undefined! ERROR: "cpufreq_cooling_register" [drivers/staging/omap-thermal/omap-thermal.ko] undefined! This patch changes cpu cooling driver to allow it to be built as module. Reported-by: Enric Balletbo i Serra <eballetbo@gmail.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com> Reviewed-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-22thermal: cpu cooling: use const parameter while registeringEduardo Valentin
There are predefined cpu_masks that are const data structures. This patch changes the cpu cooling register function so that those const cpu_masks can be used, without compilation warnings. include/linux/cpumask.h * The following particular system cpumasks and operations manage * possible, present, active and online cpus. * * cpu_possible_mask- has bit 'cpu' set iff cpu is populatable * cpu_present_mask - has bit 'cpu' set iff cpu is populated * cpu_online_mask - has bit 'cpu' set iff cpu available to scheduler * cpu_active_mask - has bit 'cpu' set iff cpu available to migration * Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-15Thermal: Add ST-Ericsson DB8500 thermal properties and platform data.hongbo.zhang
This patch adds device tree properties for ST-Ericsson DB8500 thermal driver, also adds the platform data to support the old fashion. Signed-off-by: hongbo.zhang <hongbo.zhang@linaro.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-15Thermal: Add ST-Ericsson DB8500 thermal driver.hongbo.zhang
This driver is based on the thermal management framework in thermal_sys.c. A thermal zone device is created with the trip points to which cooling devices can be bound, the current cooling device is cpufreq, e.g. CPU frequency is clipped down to cool the CPU, and other cooling devices can be added and bound to the trip points dynamically. The platform specific PRCMU interrupts are used to active thermal update when trip points are reached. Signed-off-by: hongbo.zhang <hongbo.zhang@linaro.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Francesco Lavra <francescolavra.fl@gmail.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-15drivers/thermal/Makefile refactorZhang Rui
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-15Exynos: Add missing dependencyZhang Rui
CPU_FREQ_TABLE depends on CPU_FREQ. Selecting CPU_FREQ_TABLE without checking for dependencies gives the following compilation warnings: warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC && UX500_SOC_DB8500 && CPU_THERMAL && EXYNOS_THERMAL) selects CPU_FREQ_TABLE which has unmet direct dependencies (ARCH_HAS_CPUFREQ && CPU_FREQ) Based-on-patch-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-15Refactor drivers/thermal/KconfigZhang Rui
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-15thermal: cpu_cooling: Make 'notify_device' staticSachin Kamat
Silences the following sparse warning: drivers/thermal/cpu_cooling.c:67:31: warning: symbol 'notify_device' was not declared. Should it be static? Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-07Thermal: Remove the cooling_cpufreq_list.hongbo.zhang
Problem of using this list is that the cpufreq_get_max_state callback will be called when register cooling device by thermal_cooling_device_register, but this list isn't ready at this moment. What's more, there is no need to maintain such a list, we can get cpufreq_cooling_device instance by the private thermal_cooling_device.devdata. Signed-off-by: hongbo.zhang <hongbo.zhang@linaro.com> Reviewed-by: Francesco Lavra <francescolavra.fl@gmail.com> Reviewed-by: Amit Daniel Kachhap <amit.kachhap@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-07Thermal: fix bug of counting cpu frequencies.hongbo.zhang
In the while loop for counting cpu frequencies, if table[i].frequency equals CPUFREQ_ENTRY_INVALID, index i won't be increased, so this leads to an endless loop, what's more the index i cannot be referred as cpu frequencies number if there is CPUFREQ_ENTRY_INVALID case. Signed-off-by: hongbo.zhang <hongbo.zhang@linaro.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Amit Daniel Kachhap <amit.kachhap@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-07Thermal: add indent for code alignment.hongbo.zhang
The curly bracket should be aligned with corresponding if else statements. Signed-off-by: hongbo.zhang <hongbo.zhang@linaro.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-07thermal: rcar_thermal: remove explicitly used devm_kfree/iounap()Kuninori Morimoto
devm_kfree and devm_iounmap should not have to be explicitly used Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05thermal: user_space: Add missing static storage class specifiersSachin Kamat
Fixes the following sparse warnings: drivers/thermal/user_space.c:38:5: warning: symbol 'notify_user_space' was not declared. Should it be static? drivers/thermal/user_space.c:46:25: warning: symbol 'thermal_gov_user_space' was not declared. Should it be static? Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05thermal: fair_share: Add missing static storage class specifiersSachin Kamat
Fixes the following sparse warnings: drivers/thermal/fair_share.c:80:5: warning: symbol 'fair_share_throttle' was not declared. Should it be static? drivers/thermal/fair_share.c:111:25: warning: symbol 'thermal_gov_fair_share' was not declared. Should it be static? Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05thermal: step_wise: Add missing static storage class specifiersSachin Kamat
Fixes the following sparse warnings: drivers/thermal/step_wise.c:153:5: warning: symbol 'step_wise_throttle' was not declared. Should it be static? drivers/thermal/step_wise.c:172:25: warning: symbol 'thermal_gov_step_wise' was not declared. Should it be static? Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Fix oops and unlocking in thermal_sys.cHugh Dickins
This patch fixes the following mutex and NULL pointer problems in thermal_sys.c: * mutex_unlock fix in update_temperature function * mutex_unlock fix in bind_cdev function * Correct early return to continue in bind_cdev function * NULL check fix in bind_cdev function * NULL check fix in bind_tz function Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reported-by: Sedat Dilek <sedat.dilek@gmail.com> Reported-by: Hugh Dickins <hughd@google.com> Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Provide option to choose default thermal governorDurgadoss R
This patch provides option to choose the default thermal governor. If no option is provided, the step_wise governor is selected by default. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Add documentation for platform layer dataDurgadoss R
This patch adds documentation for thermal_bind_params and thermal_zone_params structures. Also, adds details on EXPORT_SYMBOL APIs. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Add a notification APIDurgadoss R
This patch adds a notification API which the sensor drivers' can use to notify the framework. The framework then takes care of the throttling according to the configured policy. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Remove throttling logic out of thermal_sys.cDurgadoss R
This patch removes the throttling logic out of thermal_sys.c; also refactors the code into smaller functions so that are easy to read/maintain. * Seperates the handling of critical and non-critical trips * Re-arranges the set_polling and device_check methods, so that all related functions are arranged in one place. * Removes the 'do_update' and 'trip_update' method, as part of moving the throttling logic out of thermal_sys.c Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Add a thermal notifier for user spaceDurgadoss R
This patch registers a governor which will let the user land manage the platform thermals. Whenever a trip happens, this governor just notifies the user space using kobj_uevent(). Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Introduce a step_wise thermal governorDurgadoss R
This patch adds a simple step_wise governor to the generic thermal layer. This algorithm throttles the cooling devices in a linear fashion. If the 'trend' is heating, it throttles by one step. And if the thermal trend is cooling it de-throttles by one step. This actually moves the throttling logic from thermal_sys.c and puts inside step_wise.c, without any change. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Introduce fair_share thermal governorDurgadoss R
This patch introduces a simple 'weight' based governor named fair_share governor. Whenever the thermal framework gets notified of the trip point violation, this governor (if configured), throttles the cooling devices associated with a thermal zone. This mapping between a thermal zone and a cooling device and the effectiveness of cooling are provided in the platform layer. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Make thermal_cdev_update as a global functionDurgadoss R
This patch makes the thermal_cdev_update function as a global one, so that other files can use it. This function serves as a single arbitrator to set the state of a cooling device. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Update binding logic based on platform dataDurgadoss R
This patch updates the binding logic in thermal_sys.c It uses the platform layer data to bind a thermal zone to a cdev for a particular trip point. * If we do not have platform data and do not have .bind defined, do not bind. * If we do not have platform data but .bind is defined, then use tz->ops->bind. * If we have platform data, use it to create binding. The same logic sequence is followed for unbind also. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Add a policy sysfs attributeDurgadoss R
This patch adds a policy sysfs attribute to a thermal zone. This attribute denotes the throttling governor used for the zone. This is a RW attribute. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Add thermal governor registration APIsDurgadoss R
This patch creates a structure to hold platform thermal governor information, and provides APIs for individual thermal governors to register/unregister with the Thermal framework. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Pass zone parameters as argument to tzd_registerDurgadoss R
This patch adds the thermal zone parameter as an argument to the tzd_register() function call; and updates other drivers using this function. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Add platform level information to thermal.hDurgadoss R
This patch adds platform level information to thermal.h by introducing two structures to hold: * bind parameters for a thermal zone, * zone level platform parameters Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Add get trend, get instance API's to thermal_sysDurgadoss R
This patch adds the following API's to thermal_sys.c, that can be used by other Thermal drivers. * get_tz_trend: obtain the trend of the given thermal zone * get_thermal_instance: obtain the instance corresponding to the given tz, cdev and the trip point. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Move thermal_instance to thermal_core.hDurgadoss R
This patch creates a thermal_core.h file which can contain all defines used by the core thermal framework files. For now, move the thermal_instance structure to thermal_core.h This structure is used by files under drivers/thermal/. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-05Thermal: Refactor thermal.h fileDurgadoss R
This patch rearranges the code in thermal.h file, in the following order, so that it is easy to read/maintain. 1. All #defines 2. All enums 3. All fops structures 4. All device structures 5. All function declarations Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-04Linux 3.7-rc4v3.7-rc4Linus Torvalds
2012-11-03Merge tag 'nfs-for-3.7-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds
Pull NFS client bugfixes from Trond Myklebust: - Fix a bunch of deadlock situations: * State recovery can deadlock if we fail to release sequence ids before scheduling the recovery thread. * Calling deactivate_super() from an RPC workqueue thread can deadlock because of the call to rpc_shutdown_client. - Display the device name correctly in /proc/*/mounts - Fix a number of incorrect error return values: * When NFSv3 mounts fail due to a timeout. * On NFSv4.1 backchannel setup failure * On NFSv4 open access checks - pnfs_find_alloc_layout() must check the layout pointer for NULL - Fix a regression in the legacy DNS resolved * tag 'nfs-for-3.7-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFS4: nfs4_opendata_access should return errno NFSv4: Initialise the NFSv4.1 slot table highest_used_slotid correctly SUNRPC: return proper errno from backchannel_rqst NFS: add nfs_sb_deactive_async to avoid deadlock nfs: Show original device name verbatim in /proc/*/mount{s,info} nfsv3: Make v3 mounts fail with ETIMEDOUTs instead EIO on mountd timeouts nfs: Check whether a layout pointer is NULL before free it NFS: fix bug in legacy DNS resolver. NFSv4: nfs4_locku_done must release the sequence id NFSv4.1: We must release the sequence id when we fail to get a session slot NFS: Wait for session recovery to finish before returning
2012-11-03Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management & ACPI update from Zhang Rui, Ho humm. Normally these things go through Len. But it's just three small fixes, I guess I can pull directly too. * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: exynos4_tmu_driver_ids should be exynos_tmu_driver_ids. ACPI video: Ignore errors after _DOD evaluation. thermal: solve compilation errors in rcar_thermal
2012-11-03Merge branch 'i2c-embedded/for-current' of ↵Linus Torvalds
git://git.pengutronix.de/git/wsa/linux Pull i2c embedded fixes from Wolfram Sang: "Two patches are usual stuff. The bigger patch is needed to correct a wrong decision made in this merge window. We hoped to get the PIOQUEUE mode in the mxs driver working with DMA, but it turned out to be too broken (leading to data loss), so we now think it is best to remove it entirely and work only with DMA now. The patch should be in 3.7. IMO, so users never get the chance to use both modes in parallel." * 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux: i2c: tegra: set irq name as device name i2c-nomadik: Fixup clock handling i2c: mxs: remove broken PIOQUEUE support
2012-11-03Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "Scattered selection of fixes: - radeon: load detect fixes from SuSE/AMD - intel: misc i830, sdvo regression, vesafb kickoff ums fix - exynos: maintainers entry update + fixes - udl: fix stride scanout issue it's slightly bigger than I'd probably like, but nothing looked dangerous enough to hold off on." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/udl: fix stride issues scanning out stride != width*bpp drm/radeon: add load detection support for ext DAC on R200 (v2) DRM/radeon: For single CRTC GPUs move handling of CRTC_CRT_ON to crtc_dpms(). DRM/Radeon: Fix TV DAC Load Detection for single CRTC chips. DRM/Radeon: Clean up code in TV DAC load detection. drm/radeon: fix ATPX function documentation drivers/gpu/drm/radeon/evergreen_cs.c: Remove unnecessary semicolon DRM/Radeon: On DVI-I use Load Detection when EDID is bogus. DRM/Radeon: Fix primary DAC Load Detection for RV100 chips. DRM/Radeon: Fix Load Detection on legacy primary DAC. drm: exynos: removed warning due to missing typecast for mixer driver data drm/exynos: add support for ARCH_MULTIPLATFORM MAINTAINERS: Add git repository for Exynos DRM drm/exynos: fix display on issue drm/i915: Only kick out vesafb if we takeover the fbcon with KMS drm/i915: be less verbose about inability to provide vendor backlight drm/i915: clear the entire sdvo infoframe buffer drm/i915: VGA needs to be on pipe A on i830M drm/i915: fix overlay on i830M
2012-11-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "First post-Sandy pull request" 1) Fix antenna gain handling and initialization of chan->max_reg_power in wireless, from Felix Fietkau. 2) Fix nexthop handling in H.232 conntrack helper, from Julian Anastasov. 3) Only process 80211 mesh config header in certain kinds of frames, from Javier Cardona. 4) 80211 management frame header length needs to be validated, from Johannes Berg. 5) Don't access free'd SKBs in ath9k driver, from Felix Fietkay. 6) Test for permanent state correctly in VXLAN driver, from Stephen Hemminger. 7) BNX2X bug fixes from Yaniv Rosner and Dmitry Kravkov. 8) Fix off by one errors in bonding, from Nikolay ALeksandrov. 9) Fix divide by zero in TCP-Illinois congestion control. From Jesper Dangaard Brouer. 10) TCP metrics code says "Yo dawg, I heard you like sizeof, so I did a sizeof of a sizeof, so you can size your size" Fix from Julian Anastasov. 11) Several drivers do mdiobus_free without first doing an mdiobus_unregister leading to stray pointer references. Fix from Peter Senna Tschudin. 12) Fix OOPS in l2tp_eth_create() error path, it's another danling pointer kinda situation. Fix from Tom Parkin. 13) Hardware driven by the vmxnet driver can't handle larger than 16K fragments, so split them up when necessary. From Eric Dumazet. 14) Handle zero length data length in tcp_send_rcvq() properly. Fix from Pavel Emelyanov. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (38 commits) tcp-repair: Handle zero-length data put in rcv queue vmxnet3: must split too big fragments l2tp: fix oops in l2tp_eth_create() error path cxgb4: Fix unable to get UP event from the LLD drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_free drivers/net/ethernet/nxp/lpc_eth.c: Call mdiobus_unregister before mdiobus_free bnx2x: fix HW initialization using fw 7.8.x tcp: Fix double sizeof in new tcp_metrics code net: fix divide by zero in tcp algorithm illinois net: sctp: Fix typo in net/sctp bonding: fix second off-by-one error bonding: fix off-by-one error bnx2x: Disable FCoE for 57840 since not yet supported by FW bnx2x: Fix no link on 577xx 10G-baseT bnx2x: Fix unrecognized SFP+ module after driver is loaded bnx2x: Fix potential incorrect link speed provision bnx2x: Restore global registers back to default. bnx2x: Fix link down in 57712 following LFA bnx2x: Fix 57810 1G-KR link against certain switches. ixgbe: PTP get_ts_info missing software support ...
2012-11-02tcp-repair: Handle zero-length data put in rcv queuePavel Emelyanov
When sending data into a tcp socket in repair state we should check for the amount of data being 0 explicitly. Otherwise we'll have an skb with seq == end_seq in rcv queue, but tcp doesn't expect this to happen (in particular a warn_on in tcp_recvmsg shoots). Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Reported-by: Giorgos Mavrikas <gmavrikas@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-02vmxnet3: must split too big fragmentsEric Dumazet
vmxnet3 has a 16Kbytes limit per tx descriptor, that happened to work as long as we provided PAGE_SIZE fragments. Our stack can now build larger fragments, so we need to split them to the 16kbytes boundary. Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: jongman heo <jongman.heo@samsung.com> Tested-by: jongman heo <jongman.heo@samsung.com> Cc: Shreyas Bhatewara <sbhatewara@vmware.com> Reviewed-by: Bhavesh Davda <bhavesh@vmware.com> Signed-off-by: Shreyas Bhatewara <sbhatewara@vmware.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-02l2tp: fix oops in l2tp_eth_create() error pathTom Parkin
When creating an L2TPv3 Ethernet session, if register_netdev() should fail for any reason (for example, automatic naming for "l2tpeth%d" interfaces hits the 32k-interface limit), the netdev is freed in the error path. However, the l2tp_eth_sess structure's dev pointer is left uncleared, and this results in l2tp_eth_delete() then attempting to unregister the same netdev later in the session teardown. This results in an oops. To avoid this, clear the session dev pointer in the error path. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-03exynos4_tmu_driver_ids should be exynos_tmu_driver_ids.Jonghwan Choi
Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Reviewed-by: Amit Daniel Kachhap <amit.kachhap@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-03ACPI video: Ignore errors after _DOD evaluation.Igor Murzov
There are systems where video module known to work fine regardless of broken _DOD and ignoring returned value here doesn't cause any issues later. This should fix brightness controls on some laptops. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47861 Signed-off-by: Igor Murzov <e-mail@date.by> Reviewed-by: Sergey V <sftp.mtuci@gmail.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-03thermal: solve compilation errors in rcar_thermalDevendra Naga
following were the errors reported drivers/thermal/rcar_thermal.c: In function ‘rcar_thermal_probe’: drivers/thermal/rcar_thermal.c:214:10: warning: passing argument 3 of ‘thermal_zone_device_register’ makes integer from pointer without a cast [enabled by default] include/linux/thermal.h:166:29: note: expected ‘int’ but argument is of type ‘struct rcar_thermal_priv *’ drivers/thermal/rcar_thermal.c:214:10: error: too few arguments to function ‘thermal_zone_device_register’ include/linux/thermal.h:166:29: note: declared here make[1]: *** [drivers/thermal/rcar_thermal.o] Error 1 make: *** [drivers/thermal/rcar_thermal.o] Error 2 with gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) Signed-off-by: Devendra Naga <develkernel412222@gmail.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2012-11-02cxgb4: Fix unable to get UP event from the LLDVipul Pandya
If T4 configuration file gets loaded from the /lib/firmware/cxgb4/ directory then offload capabilities of the cards were getting disabled during initialization. Hence ULDs do not get an UP event from the LLD. Signed-off-by: Jay Hernandez <jay@chelsio.com> Signed-off-by: Vipul Pandya <vipul@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-02drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_freePeter Senna Tschudin
Based on commit b27393aecf66199f5ddad37c302d3e0cfadbe6c0 Calling mdiobus_free without calling mdiobus_unregister causes BUG_ON(). This patch fixes the issue. The semantic patch that found this issue(http://coccinelle.lip6.fr/): // <smpl> @@ expression E; @@ ... when != mdiobus_unregister(E); + mdiobus_unregister(E); mdiobus_free(E); // </smpl> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-02drivers/net/ethernet/nxp/lpc_eth.c: Call mdiobus_unregister before mdiobus_freePeter Senna Tschudin
Based on commit b27393aecf66199f5ddad37c302d3e0cfadbe6c0 Calling mdiobus_free without calling mdiobus_unregister causes BUG_ON(). This patch fixes the issue. The semantic patch that found this issue(http://coccinelle.lip6.fr/): // <smpl> @@ expression E; @@ ... when != mdiobus_unregister(E); + mdiobus_unregister(E); mdiobus_free(E); // </smpl> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Tested-by: Roland Stigge <stigge@antcom.de> Tested-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>