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2012-08-15[media] media: mx2_camera: Fix clock handling for i.MX27Javier Martin
On i.MX27 two clocks are required: emma-ipg and emma-ahb. The ahb clock has to be requested using both a device and a connection ID. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> [g.liakhovetski@gmx.de: rebase to the current media tree] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-15[media] video: mx2_camera: Use clk_prepare_enable/clk_disable_unprepareFabio Estevam
Prepare the clock before enabling it. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: <linux-media@vger.kernel.org> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-15[media] video: mx1_camera: Use clk_prepare_enable/clk_disable_unprepareFabio Estevam
Prepare the clock before enabling it. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: <linux-media@vger.kernel.org> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-15[media] media: mx3_camera: buf_init() add buffer state checkAlex Gershgorin
This patch checks the state of the buffer when calling .buf_init() method. This is needed for the USERPTR buffer type, because in that case .buf_init() is called every time a buffer is queued, and not only once during the preparation stage, like in the MMAP case. Without this check buffers get initialised repeatedly, which also leads to the allocation of new DMA descriptors, of which there is only a final relatively small number available. Both MMAP and USERPTR methods were successfully tested. Signed-off-by: Alex Gershgorin <alexg@meprolight.com> [g.liakhovetski@gmx.de: remove mx3_camera_buffer::state completely] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-15USB: serial: Fix mos7840 timeoutMark Ferrell
* mos7840 driver was using multiple of HZ for the timeout handed off to usb_control_msg(). Changed the timeout to use msecs instead. * Remove unused WAIT_FOR_EVER definition Signed-off-by: Mark Ferrell <mferrell@uplogix.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-15USB: option: add ZTE K5006-ZBjørn Mork
The ZTE (Vodafone) K5006-Z use the following interface layout: 00 DIAG 01 secondary 02 modem 03 networkcard 04 storage Ignoring interface #3 which is handled by the qmi_wwan driver. Cc: Thomas Schäfer <tschaefer@t-online.de> Cc: stable <stable@vger.kernel.org> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-15vmxnet3: Fix race between dev_open() and register_netdev()Steve Hodgson
dev_open() can complete before register_netdev() returns. Fix vmxnet3_probe_device() to support this. Signed-off-by: Steve Hodgson <steve@purestorage.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-15bridge: fix rcu dereference outside of rcu_read_lockStephen Hemminger
Alternative solution for problem found by Linux Driver Verification project (linuxtesting.org). As it noted in the comment before the br_handle_frame_finish function, this function should be called under rcu_read_lock. The problem callgraph: br_dev_xmit -> br_nf_pre_routing_finish_bridge_slow -> -> br_handle_frame_finish -> br_port_get_rcu -> rcu_dereference And in this case there is no read-lock section. Reported-by: Denis Efremov <yefremov.denis@gmail.com> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-15IB/srp: Fix a race conditionBart Van Assche
Avoid a crash caused by the scmnd->scsi_done(scmnd) call in srp_process_rsp() being invoked with scsi_done == NULL. This can happen if a reply is received during or after a command abort. Reported-by: Joseph Glanville <joseph.glanville@orionvm.com.au> Reference: http://marc.info/?l=linux-rdma&m=134314367801595 Cc: <stable@vger.kernel.org> Acked-by: David Dillow <dillowda@ornl.gov> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-08-15IB/qib: Fix error return code in qib_init_7322_variables()Julia Lawall
Convert a 0 error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e,e1,e2,e3,e4,x; @@ ( if (\(ret != 0\|ret < 0\) || ...) { ... return ...; } | ret = 0 ) ... when != ret = e1 *x = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\|ioremap\|ioremap_nocache\|devm_ioremap\|devm_ioremap_nocache\)(...); ... when != x = e2 when != ret = e3 *if (x == NULL || ...) { ... when != ret = e4 * return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-08-15IB: Fix typos in infiniband driversMasanari Iida
Correct spelling typos in comments in drivers/infiniband. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-08-15PCI: EHCI: Fix crash during hibernation on ASUS computersRafael J. Wysocki
Commit dbf0e4c (PCI: EHCI: fix crash during suspend on ASUS computers) added a workaround for an ASUS suspend issue related to USB EHCI and a bug in a number of ASUS BIOSes that attempt to shut down the EHCI controller during system suspend if its PCI command register doesn't contain 0 at that time. It turns out that the same workaround is necessary in the analogous hibernation code path, so add it. References: https://bugzilla.kernel.org/show_bug.cgi?id=45811 Reported-and-tested-by: Oleksij Rempel <bug-track@fisher-privat.net> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: stable@vger.kernel.org
2012-08-15PCI / PM: Fix D3/D3cold/D4 messages printed by acpi_pci_set_power_state()Rafael J. Wysocki
If a PCI device is put into D3_cold by acpi_bus_set_power(), the message printed by acpi_pci_set_power_state() says that its power state has been changed to D4, which doesn't make sense. In turn, if the device is put into D3_hot, the message simply says "D3" without specifying the variant of the D3 state. Fix this by using the pci_power_name() macro for printing the state name instead of building it from the numeric value corresponding to the given state directly. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-08-15C6X: select GENERIC_ATOMIC64Mark Salter
The generic atomic64 support came in 2009 to support the perf subsystem with the expectation that all architectures would implement atomic64 support. Since then, other optional parts of the generic kernel have also come to expect atomic64 support. This patch enables generic atomic64 support for C6X architecture. Signed-off-by: Mark Salter <msalter@redhat.com>
2012-08-15C6X: add Lx_CACHE_SHIFT definesMark Salter
C6X currently lacks Lx_CACHE_SHIFT defines which are needed in a few places in the generic kernel. This patch adds _SHIFT defines for the various caches and bases the Lx_CACHE_BYTES defines on them. Signed-off-by: Mark Salter <msalter@redhat.com>
2012-08-15regulator: twl-regulator: fix up VINTANA1/VINTANA2Aaro Koskinen
It seems commit 2098e95ce9bb039ff2e7bf836df358d18a176139 (regulator: twl: adapt twl-regulator driver to dt) accidentally deleted VINTANA1. Also the same commit defines VINTANA2 twice with TWL4030_ADJUSTABLE_LDO and TWL4030_FIXED_LDO. This patch changes the fixed one to be VINTANA1. I noticed this when auditing my N900 boot logs. I could not notice any change in device behaviour, though, except that the boot logs are now like before: ... [ 0.282928] VDAC: 1800 mV normal standby [ 0.284027] VCSI: 1800 mV normal standby [ 0.285400] VINTANA1: 1500 mV normal standby [ 0.286865] VINTANA2: 2750 mV normal standby [ 0.288208] VINTDIG: 1500 mV normal standby [ 0.289978] VSDI_CSI: 1800 mV normal standby ... Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
2012-08-15fuse: check create mode in atomic openMiklos Szeredi
Verify that the VFS is passing us a complete create mode with the S_IFREG to atomic open. Reported-by: Steve <steveamigauk@yahoo.co.uk> Reported-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Richard W.M. Jones <rjones@redhat.com>
2012-08-15vfs: pass right create mode to may_o_create()Miklos Szeredi
Pass the umask-ed create mode to may_o_create() instead of the original one. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Richard W.M. Jones <rjones@redhat.com>
2012-08-15vfs: atomic_open(): fix create mode usageMiklos Szeredi
Don't mask S_ISREG off the create mode before passing to ->atomic_open(). Other methods (->create, ->mknod) also get the complete file mode and filesystems expect it. Reported-by: Steve <steveamigauk@yahoo.co.uk> Reported-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Richard W.M. Jones <rjones@redhat.com>
2012-08-15vfs: canonicalize create mode in build_open_flags()Miklos Szeredi
Userspace can pass weird create mode in open(2) that we canonicalize to "(mode & S_IALLUGO) | S_IFREG" in vfs_create(). The problem is that we use the uncanonicalized mode before calling vfs_create() with unforseen consequences. So do the canonicalization early in build_open_flags(). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Richard W.M. Jones <rjones@redhat.com> CC: stable@vger.kernel.org
2012-08-15audit: clean up refcounting in audit-treeMiklos Szeredi
Drop the initial reference by fsnotify_init_mark early instead of audit_tree_freeing_mark() at destroy time. In the cases we destroy the mark before we drop the initial reference we need to get rid of the get_mark that balances the put_mark in audit_tree_freeing_mark(). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2012-08-15audit: fix refcounting in audit-treeMiklos Szeredi
Refcounting of fsnotify_mark in audit tree is broken. E.g: refcount create_chunk alloc_chunk 1 fsnotify_add_mark 2 untag_chunk fsnotify_get_mark 3 fsnotify_destroy_mark audit_tree_freeing_mark 2 fsnotify_put_mark 1 fsnotify_put_mark 0 via destroy_list fsnotify_mark_destroy -1 This was reported by various people as triggering Oops when stopping auditd. We could just remove the put_mark from audit_tree_freeing_mark() but that would break freeing via inode destruction. So this patch simply omits a put_mark after calling destroy_mark or adds a get_mark before. The additional get_mark is necessary where there's no other put_mark after fsnotify_destroy_mark() since it assumes that the caller is holding a reference (or the inode is keeping the mark pinned, not the case here AFAICS). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Reported-by: Valentin Avram <aval13@gmail.com> Reported-by: Peter Moody <pmoody@google.com> Acked-by: Eric Paris <eparis@redhat.com> CC: stable@vger.kernel.org
2012-08-15audit: don't free_chunk() after fsnotify_add_mark()Miklos Szeredi
Don't do free_chunk() after fsnotify_add_mark(). That one does a delayed unref via the destroy list and this results in use-after-free. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Acked-by: Eric Paris <eparis@redhat.com> CC: stable@vger.kernel.org
2012-08-15Merge branch 'drm-nouveau-fixes' of ↵Dave Airlie
git://git.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes * 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2.6: drm/nv86/fifo: suspend fix drm/nouveau: disable copy engine on NVAF nouveau: fixup scanout enable in nvc0_pm drm/nouveau/aux: mask off higher bits of auxch index in i2c table entry drm/nvd0/disp: mask off high 16 bit of negative cursor x-coordinate drm/nve0/fifo: add support for the flip completion swmthd
2012-08-15Merge branch 'drm-intel-fixes' of ↵Dave Airlie
git://people.freedesktop.org/~danvet/drm-intel into drm-fixes Daniel Vetter writes: "A few important fixers: - fix various lvds backlight issues, regressed in 3.6 (Takashi Iwai) - make the retina mbp work (ignore bogus edp bpc value in vbt) - fix a gmbus regression introduced in (iirc) 3.4 (Jani Nikula) - fix an edp panel power sequence regression, fixes the new macbook air - apply the tlb invalidate w/a Otherwise we still have another gmbus regression (patches are awaiting tested-bys) and there's something odd going with some rare systems not entering rc6 often enough (and hence blowing through too much power). It seems to be a timing-related issue and can be mitigated by frobbing the magic tuning parameters. We're still working on that one. Also, we still have some fallout from the hw context support, but you can only hit that with mesa master." * 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel: drm/i915: Apply post-sync write for pipe control invalidates drm/i915: reorder edp disabling to fix ivb MacBook Air drm/i915: ensure i2c adapter is all set before adding it drm/i915: ignore eDP bpc settings from vbt drm/i915: Fix blank panel at reopening lid
2012-08-15ARM: 7490/1: Drop duplicate select for GENERIC_IRQ_PROBEStephen Boyd
Seems that Thomas' and my patches collided during the last merge window. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-08-15sparc64: Be less verbose during vmemmap population.David S. Miller
On a 2-node machine with 256GB of ram we get 512 lines of console output, which is just too much. This mimicks Yinghai Lu's x86 commit c2b91e2eec9678dbda274e906cc32ea8f711da3b (x86_64/mm: check and print vmemmap allocation continuous) except that we aren't ever going to get contiguous block pointers in between calls so just print when the virtual address or node changes. This decreases the output by an order of 16. Also demote this to KERN_DEBUG. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14Merge branch 'for-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless John W. Linville says: ==================== Alexey Khoroshilov provides a potential memory leak in rndis_wlan. Bob Copeland gives us an ath5k fix for a lockdep problem. Dan Carpenter fixes a signedness mismatch in at76c50x. Felix Fietkau corrects a regression caused by an earlier commit that can lead to an IRQ storm. Lorenzo Bianconi offers a fix for a bad variable initialization in ath9k that can cause it to improperly mark decrypted frames. Rajkumar Manoharan fixes ath9k to prevent the btcoex time from running when the hardware is asleep. The remainder are Bluetooth fixes, about which Gustavo says: "Here goes some fixes for 3.6-rc1, there are a few fix to thte inquiry code by Ram Malovany, support for 2 new devices, and few others fixes for NULL dereference, possible deadlock and a memory leak." ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14ipv6: addrconf: Avoid calling netdevice notifiers with RCU read-side lockBen Hutchings
Cong Wang reports that lockdep detected suspicious RCU usage while enabling IPV6 forwarding: [ 1123.310275] =============================== [ 1123.442202] [ INFO: suspicious RCU usage. ] [ 1123.558207] 3.6.0-rc1+ #109 Not tainted [ 1123.665204] ------------------------------- [ 1123.768254] include/linux/rcupdate.h:430 Illegal context switch in RCU read-side critical section! [ 1123.992320] [ 1123.992320] other info that might help us debug this: [ 1123.992320] [ 1124.307382] [ 1124.307382] rcu_scheduler_active = 1, debug_locks = 0 [ 1124.522220] 2 locks held by sysctl/5710: [ 1124.648364] #0: (rtnl_mutex){+.+.+.}, at: [<ffffffff81768498>] rtnl_trylock+0x15/0x17 [ 1124.882211] #1: (rcu_read_lock){.+.+.+}, at: [<ffffffff81871df8>] rcu_lock_acquire+0x0/0x29 [ 1125.085209] [ 1125.085209] stack backtrace: [ 1125.332213] Pid: 5710, comm: sysctl Not tainted 3.6.0-rc1+ #109 [ 1125.441291] Call Trace: [ 1125.545281] [<ffffffff8109d915>] lockdep_rcu_suspicious+0x109/0x112 [ 1125.667212] [<ffffffff8107c240>] rcu_preempt_sleep_check+0x45/0x47 [ 1125.781838] [<ffffffff8107c260>] __might_sleep+0x1e/0x19b [...] [ 1127.445223] [<ffffffff81757ac5>] call_netdevice_notifiers+0x4a/0x4f [...] [ 1127.772188] [<ffffffff8175e125>] dev_disable_lro+0x32/0x6b [ 1127.885174] [<ffffffff81872d26>] dev_forward_change+0x30/0xcb [ 1128.013214] [<ffffffff818738c4>] addrconf_forward_change+0x85/0xc5 [...] addrconf_forward_change() uses RCU iteration over the netdev list, which is unnecessary since it already holds the RTNL lock. We also cannot reasonably require netdevice notifier functions not to sleep. Reported-by: Cong Wang <amwang@redhat.com> Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14drivers/net/ethernet/mellanox/mlx4/mcg.c: fix error return codeJulia Lawall
Convert a 0 error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e,e1,e2,e3,e4,x; @@ ( if (\(ret != 0\|ret < 0\) || ...) { ... return ...; } | ret = 0 ) ... when != ret = e1 *x = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\|ioremap\|ioremap_nocache\|devm_ioremap\|devm_ioremap_nocache\)(...); ... when != x = e2 when != ret = e3 *if (x == NULL || ...) { ... when != ret = e4 * return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14drivers/net/ethernet/freescale/fs_enet: fix error return codeJulia Lawall
Convert a 0 error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e,e1,e2,e3,e4,x; @@ ( if (\(ret != 0\|ret < 0\) || ...) { ... return ...; } | ret = 0 ) ... when != ret = e1 *x = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\|ioremap\|ioremap_nocache\|devm_ioremap\|devm_ioremap_nocache\)(...); ... when != x = e2 when != ret = e3 *if (x == NULL || ...) { ... when != ret = e4 * return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14drivers/net/ethernet/ti/davinci_cpdma.c: Remove potential NULL dereferenceJulia Lawall
If the NULL test is necessary, the initialization involving a dereference of the tested value should be moved after the NULL test. The sematic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ type T; expression E; identifier i,fld; statement S; @@ - T i = E->fld; + T i; ... when != E when != i if (E == NULL) S + i = E->fld; // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14staging: csr: add INET dependancyGreg Kroah-Hartman
Randy noticed that with CONFIG_INET turned off, the following build errors happen: ERROR: "register_inetaddr_notifier" [drivers/staging/csr/csr_wifi.ko] undefined! ERROR: "unregister_inetaddr_notifier" [drivers/staging/csr/csr_wifi.ko] undefined! Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-14staging: comedi: Fix reversed test in comedi_device_attach()Ian Abbott
Commit 3902a370281d2f2b130f141e8cf94eab40125769 (staging: comedi: refactor comedi_device_attach() a bit) by yours truly introduced an inverted logic bug in comedi_device_attach() for the case where the driver expects the device to be configured by driver name rather than board name. The result of a strcmp() is being tested incorrectly. Fix it. Thanks to Stephen N Chivers for discovering the bug and suggesting the fix. Cc: <stable@vger.kernel.org> # 3.5.x Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-14llc: Fix races between llc2 handler use and (un)registrationBen Hutchings
When registering the handlers, any state they rely on must be completely initialised first. When unregistering, we must wait until they are definitely no longer running. llc_rcv() must also avoid reading the handler pointers again after checking for NULL. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14llc2: Call llc_station_exit() on llc2_init() failure pathBen Hutchings
Otherwise the station packet handler will remain registered even though the module is unloaded. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14llc2: Fix silent failure of llc_station_init()Ben Hutchings
llc_station_init() creates and processes an event skb with no effect other than to change the state from DOWN to UP. Allocation failure is reported, but then ignored by its caller, llc2_init(). Remove this possibility by simply initialising the state as UP. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14IB/ipoib: Fix RCU pointer dereference of wrong objectShlomo Pongratz
Commit b63b70d87741 ("IPoIB: Use a private hash table for path lookup in xmit path") introduced a bug where in ipoib_neigh_free() (which is called from a few errors flows in the driver), rcu_dereference() is invoked with the wrong pointer object, which results in a crash. Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-08-14IB/ipoib: Add missing locking when CM object is deletedShlomo Pongratz
Commit b63b70d87741 ("IPoIB: Use a private hash table for path lookup in xmit path") introduced a bug where in ipoib_cm_destroy_tx() a CM object is moved between lists without any supported locking. Under a stress test, this eventually leads to list corruption and a crash. Previously when this routine was called, callers were taking the device priv lock. Currently this function is called from the RCU callback associated with neighbour deletion. Fix the race by taking the same lock we used to before. Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-08-14net: ipv6: proc: Fix error handlingIgor Maravic
Fix error handling in case making of dir dev_snmp6 failes Signed-off-by: Igor Maravic <igorm@etf.rs> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14ipv4: Cache local output routesYan, Zheng
Commit caacf05e5ad1abf causes big drop of UDP loop back performance. The cause of the regression is that we do not cache the local output routes. Each time we send a datagram from unconnected UDP socket, the kernel allocates a dst_entry and adds it to the rt_uncached_list. It creates lock contention on the rt_uncached_lock. Reported-by: Alex Shi <alex.shi@intel.com> Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14net: sierra_net: replace whitelist with ifnumber matchBjørn Mork
Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14net: qmi_wwan: compress device_id list using macrosBjørn Mork
Take advantage of the matching macros to make the device id list easier to read and maintain. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14net: qmi_wwan: add Sierra Wireless devicesBjørn Mork
Add 6 new devices and one modified device, based on information from laptop vendor Windows drivers. Sony provides a driver with two new devices using a Gobi 2k+ layout (1199:68a5 and 1199:68a9). The Sony driver also adds a non-standard QMI/net interface to the already supported 1199:9011 Gobi device. We do not know whether this is an alternate interface number or an additional interface which might be present, but that doesn't really matter. Lenovo provides a driver supporting 4 new devices: - MC7770 (1199:901b) with standard Gobi 2k+ layout - MC7700 (0f3d:68a2) with layout similar to MC7710 - MC7750 (114f:68a2) with layout similar to MC7710 - EM7700 (1199:901c) with layout similar to MC7710 Note regaring the three devices similar to MC7710: The Windows drivers only support interface #8 on these devices. The MC7710 can support QMI/net functions on interface #19 and #20 as well, and this driver is verified to work on interface #19 (a firmware bug is suspected to prevent #20 from working). We do not enable these additional interfaces until they either show up in a Windows driver or are verified to work in some other way. Therefore limiting the new devices to interface #8 for now. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14net: qmi_wwan: use fixed interface number matchingBjørn Mork
This driver support many composite USB devices where the interface class/subclass/protocol provides no information about the interface function. Interfaces with different functions may all use ff/ff/ff, like this example of a device with three serial interfaces and three QMI/wwan interfaces: T: Bus=02 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#=116 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1199 ProdID=68a2 Rev= 0.06 S: Manufacturer=Sierra Wireless, Incorporated S: Product=MC7710 S: SerialNumber=3581780xxxxxx C:* #Ifs= 6 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=qcserial E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=qcserial E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qcserial E: Ad=83(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 8 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan E: Ad=85(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#=19 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan E: Ad=87(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#=20 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) E: Ad=89(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=8a(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms Instead of class/subclass/protocol the vendor use fixed interface numbers for each function, and the Windows drivers use these numbers to match driver and function. The driver has had its own interface number whitelisting code to simulate this functionality. Replace this with generic interface number matching now that the USB subsystem support is there. This - removes the need for a driver_info structure per interface number, - avoids running the probe function for unsupported interfaces, and - simplifies the code. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14netconsole.txt: revision of examples for the receiver of kernel messagesDirk Gouders
There are at least 4 implementations of netcat with the BSD-based being the only one that has to be used without the -p switch to specify the listening port. Jan Engelhardt suggested to add an example for socat(1). Signed-off-by: Dirk Gouders <gouders@et.bocholt.fh-gelsenkirchen.de> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14netpoll: re-enable irq in poll_napi()Amerigo Wang
napi->poll() needs IRQ enabled, so we have to re-enable IRQ before calling it. Cc: David Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14netpoll: handle vlan tags in netpoll tx and rx pathAmerigo Wang
Without this patch, I can't get netconsole logs remotely over vlan. The reason is probably we don't handle vlan tags in either netpoll tx or rx path. I am not sure if I use these vlan functions correctly, at least this patch works. Cc: Benjamin LaHaise <bcrl@kvack.org> Cc: Patrick McHardy <kaber@trash.net> Cc: David Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14vlan: clean up vlan_dev_hard_start_xmit()Amerigo Wang
Clean up vlan_dev_hard_start_xmit() function. Cc: Benjamin LaHaise <bcrl@kvack.org> Cc: Patrick McHardy <kaber@trash.net> Cc: David Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14vlan: clean up some variable namesAmerigo Wang
To be consistent, s/info/vlan/. Cc: Benjamin LaHaise <bcrl@kvack.org> Cc: Patrick McHardy <kaber@trash.net> Cc: David Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>