Commit Graph

414497 Commits

Author SHA1 Message Date
Alex Shi
e9a2eb403b nohz_full: fix code style issue of tick_nohz_full_stop_tick
Code usually starts with 'tab' instead of 7 'space' in kernel

Signed-off-by: Alex Shi <alex.shi@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Alex Shi <alex.shi@linaro.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Kevin Hilman <khilman@linaro.org>
Link: http://lkml.kernel.org/r/1386074112-30754-2-git-send-email-alex.shi@linaro.org
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2014-01-15 23:07:11 +01:00
Frederic Weisbecker
855a0fc30b nohz: Get timekeeping max deferment outside jiffies_lock
We don't need to fetch the timekeeping max deferment under the
jiffies_lock seqlock.

If the clocksource is updated concurrently while we stop the tick,
stop machine is called and the tick will be reevaluated again along with
uptodate jiffies and its related values.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Alex Shi <alex.shi@linaro.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Kevin Hilman <khilman@linaro.org>
Link: http://lkml.kernel.org/r/1387320692-28460-9-git-send-email-fweisbec@gmail.com
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2014-01-15 23:07:11 +01:00
Frederic Weisbecker
5acac1be49 tick: Rename tick_check_idle() to tick_irq_enter()
This makes the code more symetric against the existing tick functions
called on irq exit: tick_irq_exit() and tick_nohz_irq_exit().

These function are also symetric as they mirror each other's action:
we start to account idle time on irq exit and we stop this accounting
on irq entry. Also the tick is stopped on irq exit and timekeeping
catches up with the tickless time elapsed until we reach irq entry.

This rename was suggested by Peter Zijlstra a long while ago but it
got forgotten in the mass.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Alex Shi <alex.shi@linaro.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Kevin Hilman <khilman@linaro.org>
Link: http://lkml.kernel.org/r/1387320692-28460-2-git-send-email-fweisbec@gmail.com
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2014-01-15 23:05:31 +01:00
Ingo Molnar
1b3f828760 Merge branch 'clockevents/3.14' of git://git.linaro.org/people/daniel.lezcano/linux into timers/core
Pull clocksource/clockevent updates from Daniel Lezcano:

  * Axel Lin removed an unused structure defining the ids for the
    bcm kona driver.

  * Ezequiel Garcia enabled the timer divider only when the 25MHz
    timer is not used for the armada 370 XP.

  * Jingoo Han removed a pointless platform data initialization for
    the sh_mtu and sh_mtu2.

  * Laurent Pinchart added the clk_prepare/clk_unprepare for sh_cmt.

  * Linus Walleij added a useful warning in clk_of when no clocks
    are found while the old behavior was to silently hang at boot time.

  * Maxime Ripard added the high speed timer drivers for the
    Allwinner SoCs (A10, A13, A20). He increased the rating, shared the
    irq across all available cpus and fixed the clockevent's irq
    initialization for the sun4i.

  * Michael Opdenacker removed the usage of the IRQF_DISABLED for the
    all the timers driver located in drivers/clocksource.

  * Stephen Boyd switched to sched_clock_register for the
    arm_global_timer, cadence_ttc, sun4i and orion timers.

Conflicts:
	drivers/clocksource/clksrc-of.c

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-01-14 14:33:29 +01:00
Ingo Molnar
d05d24a984 Merge branch 'fortglx/3.14/time' of git://git.linaro.org/people/john.stultz/linux into timers/core
Pull timekeeping updates from John Stultz.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-01-12 14:13:31 +01:00
Ingo Molnar
dba861461f Merge branch 'linus' into timers/core
Pick up the latest fixes and refresh the branch.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-01-12 14:12:44 +01:00
Linus Torvalds
228fdc083b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "Famouse last words: "final pull request" :-)

  I'm sending this because Jason Wang's fixes are pretty important

   1) Add missing per-cpu stats initialization to ip6_vti.  Otherwise
      lockdep spits out a call trace.  From Li RongQing.

   2) Fix NULL oops in wireless hwsim, from Javier Lopez

   3) TIPC deferred packet queue unlink must NULL out skb->next to avoid
      crashes.  From Erik Hugne

   4) Fix access to uninitialized buffer in nf_nat netfilter code, from
      Daniel Borkmann

   5) Fix lifetime of ipv6 loopback and SIT tunnel addresses, otherwise
      they basically timeout immediately.  From Hannes Frederic Sowa

   6) Fix DMA unmapping of TSO packets in bnx2x driver, from Michal
      Schmidt

   7) Do not allow L2 forwarding offload via macvtap device, the way
      things are now it will not end up being forwaded at all.  From
      Jason Wang

   8) Fix transmit queue selection via ndo_dfwd_start_xmit(), fixing
      things like applying NETIF_F_LLTX to the wrong device (!!) and
      eliding the proper transmit watchdog handling

   9) qlcnic driver was not updating tx statistics at all, from Manish
      Chopra"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  qlcnic: Fix ethtool statistics length calculation
  qlcnic: Fix bug in TX statistics
  net: core: explicitly select a txq before doing l2 forwarding
  macvlan: forbid L2 fowarding offload for macvtap
  bnx2x: fix DMA unmapping of TSO split BDs
  ipv6: add link-local, sit and loopback address with INFINITY_LIFE_TIME
  bnx2x: prevent WARN during driver unload
  tipc: correctly unlink packets from deferred packet queue
  ipv6: pcpu_tstats.syncp should be initialised in ip6_vti.c
  netfilter: only warn once on wrong seqadj usage
  netfilter: nf_nat: fix access to uninitialized buffer in IRC NAT helper
  NFC: Fix target mode p2p link establishment
  iwlwifi: add new devices for 7265 series
  mac80211: move "bufferable MMPDU" check to fix AP mode scan
  mac80211_hwsim: Fix NULL pointer dereference
2014-01-11 06:37:11 +07:00
Linus Torvalds
e2bc44706f xfs: bugfixes for 3.13-rc8
- fix off-by-one in xfs_attr3_rmt_verify
 - fix missing destroy_work_on_stack() in xfs_bmapi_allocate
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Merge tag 'xfs-for-linus-v3.13-rc8' of git://oss.sgi.com/xfs/xfs

Pull xfs bugfixes from Ben Myers:
 "Here we have a bugfix for an off-by-one in the remote attribute
  verifier that results in a forced shutdown which you can hit with v5
  superblock by creating a 64k xattr, and a fix for a missing
  destroy_work_on_stack() in the allocation worker.

  It's a bit late, but they are both fairly straightforward"

* tag 'xfs-for-linus-v3.13-rc8' of git://oss.sgi.com/xfs/xfs:
  xfs: Calling destroy_work_on_stack() to pair with INIT_WORK_ONSTACK()
  xfs: fix off-by-one error in xfs_attr3_rmt_verify
2014-01-11 06:33:03 +07:00
Linus Torvalds
324c66ff52 Merge branch 'leds-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED fix from Bryan Wu:
 "Pali Rohár and Pavel Machek reported the LED of Nokia N900 doesn't
  work with our latest 3.13-rc6 kernel.  Milo fixed the regression here"

* 'leds-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  leds: lp5521/5523: Remove duplicate mutex
2014-01-11 06:26:27 +07:00
Linus Torvalds
cff539b11c ACPI and power management fixes for 3.13-rc8
- Recent commits modifying the lists of C-states in the intel_idle
   driver introduced bugs leading to crashes on some systems.  Two
   fixes from Jiang Liu.
 
 - The ACPI AC driver should receive all types of notifications, but
   recent change made it ignore some of them.  Fix from Alexander Mezin.
 
 - intel_pstate's validity checks for MSRs it depends on are not
   sufficient to catch the lack of support in nested KVM setups, so
   they are extended to cover that case.  From Dirk Brandewie.
 
 - NEC LZ750/LS has a botched up _BIX method in its ACPI tables, so our
   ACPI battery driver needs a quirk for it.  From Lan Tianyu.
 
 - The tpm_ppi driver sometimes leaks memory allocated by acpi_get_name().
   Fix from Jiang Liu.
 
 /
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Merge tag 'pm+acpi-3.13-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management fixes from Rafael Wysocki:

 - Recent commits modifying the lists of C-states in the intel_idle
   driver introduced bugs leading to crashes on some systems.  Two fixes
   from Jiang Liu.

 - The ACPI AC driver should receive all types of notifications, but
   recent change made it ignore some of them.  Fix from Alexander Mezin.

 - intel_pstate's validity checks for MSRs it depends on are not
   sufficient to catch the lack of support in nested KVM setups, so they
   are extended to cover that case.  From Dirk Brandewie.

 - NEC LZ750/LS has a botched up _BIX method in its ACPI tables, so our
   ACPI battery driver needs a quirk for it.  From Lan Tianyu.

 - The tpm_ppi driver sometimes leaks memory allocated by
   acpi_get_name().  Fix from Jiang Liu.

* tag 'pm+acpi-3.13-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  intel_idle: close avn_cstates array with correct marker
  Revert "intel_idle: mark states tables with __initdata tag"
  ACPI / Battery: Add a _BIX quirk for NEC LZ750/LS
  intel_pstate: Add X86_FEATURE_APERFMPERF to cpu match parameters.
  ACPI / TPM: fix memory leak when walking ACPI namespace
  ACPI / AC: change notification handler type to ACPI_ALL_NOTIFY
2014-01-11 06:25:02 +07:00
Linus Torvalds
c43a5eb269 This is the 2nd MFD pull request for 3.13
It only contains one fix for the rtsx_pcr driver. Without it we see a
 kernel panic on some machines, when resuming from suspend to RAM.
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Merge tag 'mfd-fixes-3.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes

Pull MFD fix from Samuel Ortiz:
 "This is the 2nd MFD pull request for 3.13

  It only contains one fix for the rtsx_pcr driver.  Without it we see a
  kernel panic on some machines, when resuming from suspend to RAM"

* tag 'mfd-fixes-3.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes:
  mfd: rtsx_pcr: Disable interrupts before cancelling delayed works
2014-01-11 06:23:57 +07:00
Milo Kim
e70988d1aa leds: lp5521/5523: Remove duplicate mutex
It can be a problem when a pattern is loaded via the firmware interface.
LP55xx common driver has already locked the mutex in 'lp55xx_firmware_loaded()'.
So it should be deleted.

On the other hand, locks are required in store_engine_load()
on updating program memory.

Reported-by: Pali Rohár <pali.rohar@gmail.com>
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
Cc: <stable@vger.kernel.org>
2014-01-10 14:48:07 -08:00
Chuansheng Liu
1f4a63bf01 xfs: Calling destroy_work_on_stack() to pair with INIT_WORK_ONSTACK()
In case CONFIG_DEBUG_OBJECTS_WORK is defined, it is needed to
call destroy_work_on_stack() which frees the debug object to pair
with INIT_WORK_ONSTACK().

Signed-off-by: Liu, Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

(cherry picked from commit 6f96b3063c)
2014-01-10 12:39:38 -06:00
Jie Liu
bba719b500 xfs: fix off-by-one error in xfs_attr3_rmt_verify
With CRC check is enabled, if trying to set an attributes value just
equal to the maximum size of XATTR_SIZE_MAX would cause the v3 remote
attr write verification procedure failure, which would yield the back
trace like below:

<snip>
XFS (sda7): Internal error xfs_attr3_rmt_write_verify at line 191 of file fs/xfs/xfs_attr_remote.c
<snip>
Call Trace:
[<ffffffff816f0042>] dump_stack+0x45/0x56
[<ffffffffa0d99c8b>] xfs_error_report+0x3b/0x40 [xfs]
[<ffffffffa0d96edd>] ? _xfs_buf_ioapply+0x6d/0x390 [xfs]
[<ffffffffa0d99ce5>] xfs_corruption_error+0x55/0x80 [xfs]
[<ffffffffa0dbef6b>] xfs_attr3_rmt_write_verify+0x14b/0x1a0 [xfs]
[<ffffffffa0d96edd>] ? _xfs_buf_ioapply+0x6d/0x390 [xfs]
[<ffffffffa0d97315>] ? xfs_bdstrat_cb+0x55/0xb0 [xfs]
[<ffffffffa0d96edd>] _xfs_buf_ioapply+0x6d/0x390 [xfs]
[<ffffffff81184cda>] ? vm_map_ram+0x31a/0x460
[<ffffffff81097230>] ? wake_up_state+0x20/0x20
[<ffffffffa0d97315>] ? xfs_bdstrat_cb+0x55/0xb0 [xfs]
[<ffffffffa0d9726b>] xfs_buf_iorequest+0x6b/0xc0 [xfs]
[<ffffffffa0d97315>] xfs_bdstrat_cb+0x55/0xb0 [xfs]
[<ffffffffa0d97906>] xfs_bwrite+0x46/0x80 [xfs]
[<ffffffffa0dbfa94>] xfs_attr_rmtval_set+0x334/0x490 [xfs]
[<ffffffffa0db84aa>] xfs_attr_leaf_addname+0x24a/0x410 [xfs]
[<ffffffffa0db8893>] xfs_attr_set_int+0x223/0x470 [xfs]
[<ffffffffa0db8b76>] xfs_attr_set+0x96/0xb0 [xfs]
[<ffffffffa0db13b2>] xfs_xattr_set+0x42/0x70 [xfs]
[<ffffffff811df9b2>] generic_setxattr+0x62/0x80
[<ffffffff811e0213>] __vfs_setxattr_noperm+0x63/0x1b0
[<ffffffff81307afe>] ? evm_inode_setxattr+0xe/0x10
[<ffffffff811e0415>] vfs_setxattr+0xb5/0xc0
[<ffffffff811e054e>] setxattr+0x12e/0x1c0
[<ffffffff811c6e82>] ? final_putname+0x22/0x50
[<ffffffff811c708b>] ? putname+0x2b/0x40
[<ffffffff811cc4bf>] ? user_path_at_empty+0x5f/0x90
[<ffffffff811bdfd9>] ? __sb_start_write+0x49/0xe0
[<ffffffff81168589>] ? vm_mmap_pgoff+0x99/0xc0
[<ffffffff811e07df>] SyS_setxattr+0x8f/0xe0
[<ffffffff81700c2d>] system_call_fastpath+0x1a/0x1f

Tests:
    setfattr -n user.longxattr -v `perl -e 'print "A"x65536'` testfile

This patch fix it to check the remote EA size is greater than the
XATTR_SIZE_MAX rather than more than or equal to it, because it's
valid if the specified EA value size is equal to the limitation as
per VFS setxattr interface.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

(cherry picked from commit 85dd0707f0)
2014-01-10 12:38:41 -06:00
Shahed Shaikh
d6e9c89a8d qlcnic: Fix ethtool statistics length calculation
o Consider number of Tx queues while calculating the length of
  Tx statistics as part of ethtool stats.
o Calculate statistics lenght properly for 82xx and 83xx adapter

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-10 13:25:29 -05:00
Manish Chopra
1ac6762a0b qlcnic: Fix bug in TX statistics
o Driver was not updating TX stats so it was not populating
  statistics in `ifconfig` command output.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-10 13:25:29 -05:00
Jason Wang
f663dd9aaf net: core: explicitly select a txq before doing l2 forwarding
Currently, the tx queue were selected implicitly in ndo_dfwd_start_xmit(). The
will cause several issues:

- NETIF_F_LLTX were removed for macvlan, so txq lock were done for macvlan
  instead of lower device which misses the necessary txq synchronization for
  lower device such as txq stopping or frozen required by dev watchdog or
  control path.
- dev_hard_start_xmit() was called with NULL txq which bypasses the net device
  watchdog.
- dev_hard_start_xmit() does not check txq everywhere which will lead a crash
  when tso is disabled for lower device.

Fix this by explicitly introducing a new param for .ndo_select_queue() for just
selecting queues in the case of l2 forwarding offload. netdev_pick_tx() was also
extended to accept this parameter and dev_queue_xmit_accel() was used to do l2
forwarding transmission.

With this fixes, NETIF_F_LLTX could be preserved for macvlan and there's no need
to check txq against NULL in dev_hard_start_xmit(). Also there's no need to keep
a dedicated ndo_dfwd_start_xmit() and we can just reuse the code of
dev_queue_xmit() to do the transmission.

In the future, it was also required for macvtap l2 forwarding support since it
provides a necessary synchronization method.

Cc: John Fastabend <john.r.fastabend@intel.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: e1000-devel@lists.sourceforge.net
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-10 13:23:08 -05:00
Jason Wang
b13ba1b83f macvlan: forbid L2 fowarding offload for macvtap
L2 fowarding offload will bypass the rx handler of real device. This will make
the packet could not be forwarded to macvtap device. Another problem is the
dev_hard_start_xmit() called for macvtap does not have any synchronization.

Fix this by forbidding L2 forwarding for macvtap.

Cc: John Fastabend <john.r.fastabend@intel.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-10 13:23:08 -05:00
David S. Miller
c4d7099867 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:

====================
For the mac80211 bits, Johannes says:

"I have a fix from Javier for mac80211_hwsim when used with wmediumd
userspace, and a fix from Felix for buffering in AP mode."

For the NFC bits, Samuel says:

"This pull request only contains one fix for a regression introduced with
commit e29a9e2ae1. Without this fix, we can not establish a p2p link
in target mode. Only initiator mode works."

For the iwlwifi bits, Emmanuel says:

"It only includes new device IDs so it's not vital. If you have a pull
request to net.git anyway, I'd happy to have this in."
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-10 13:21:22 -05:00
Michal Schmidt
95e92fd40c bnx2x: fix DMA unmapping of TSO split BDs
bnx2x triggers warnings with CONFIG_DMA_API_DEBUG=y:

  WARNING: CPU: 0 PID: 2253 at lib/dma-debug.c:887 check_unmap+0xf8/0x920()
  bnx2x 0000:28:00.0: DMA-API: device driver frees DMA memory with
  different size [device address=0x00000000da2b389e] [map size=1490 bytes]
  [unmap size=66 bytes]

The reason is that bnx2x splits a TSO BD into two BDs (headers + data)
using one DMA mapping for both, but it uses only the length of the first
BD when unmapping.

This patch fixes the bug by unmapping the whole length of the two BDs.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-10 13:18:07 -05:00
Linus Torvalds
21e20e22d4 Late fixes for clock drivers. All of these fixes are for user-visible
regressions, typically boot failures or other unsafe system
 configuration that causes badness.
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Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux

Pull clock fixes from Mike Turquette:
 "Late fixes for clock drivers.  All of these fixes are for user-visible
  regressions, typically boot failures or other unsafe system
  configuration that causes badness"

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
  clk: clk-divider: fix divisor > 255 bug
  clk: exynos: File scope reg_save array should depend on PM_SLEEP
  clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg clock
  ARM: dts: exynos5250: Fix MDMA0 clock number
  clk: samsung: exynos5250: Add MDMA0 clocks
  clk: samsung: exynos5250: Fix ACP gate register offset
  clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
  clk: samsung: exynos4: Correct SRC_MFC register
2014-01-10 15:57:23 +07:00
Linus Torvalds
2aa63ce000 ARM: SoC fixes for 3.13-rc
Hopefully the last set of arm-soc fixes for 3.13, or at least only a
 few stray patches after this.
 
 There are a few fixes for Renesas platforms to fixup DMA masks (this
 started causing errors once the DMA API added checks for valid masks in
 3.13). Two more dealing with resources for MMC and PWM setup.
 
 There's also a few TI/OMAP/DRA fixes for smaller stuff and a fix for
 compilation failures on a PXA platform.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A few fixes for Renesas platforms to fixup DMA masks (this started
  causing errors once the DMA API added checks for valid masks in 3.13)"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: shmobile: mackerel: Fix coherent DMA mask
  ARM: shmobile: kzm9g: Fix coherent DMA mask
  ARM: shmobile: armadillo: Fix coherent DMA mask
2014-01-10 15:54:49 +07:00
Hannes Frederic Sowa
07edd741c8 ipv6: add link-local, sit and loopback address with INFINITY_LIFE_TIME
In the past the IFA_PERMANENT flag indicated, that the valid and preferred
lifetime where ignored. Since change fad8da3e08 ("ipv6 addrconf: fix
preferred lifetime state-changing behavior while valid_lft is infinity")
we honour at least the preferred lifetime on those addresses. As such
the valid lifetime gets recalculated and updated to 0.

If loopback address is added manually this problem does not occur.
Also if NetworkManager manages IPv6, those addresses will get added via
inet6_rtm_newaddr and thus will have a correct lifetime, too.

Reported-by: François-Xavier Le Bail <fx.lebail@yahoo.com>
Reported-by: Damien Wyart <damien.wyart@gmail.com>
Fixes: fad8da3e08 ("ipv6 addrconf: fix preferred lifetime state-changing behavior while valid_lft is infinity")
Cc: Yasushi Asano <yasushi.asano@jp.fujitsu.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-09 23:07:47 -05:00
Yuval Mintz
9a2620c877 bnx2x: prevent WARN during driver unload
Starting with commit 80c33dd "net: add might_sleep() call to napi_disable"
bnx2x fails the might_sleep tests causing a stack trace to appear whenever
the driver is unloaded, as local_bh_disable() is being called before
napi_disable().

This changes the locking schematics related to CONFIG_NET_RX_BUSY_POLL,
preventing the need for calling local_bh_disable() and thus eliminating
the issue.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-09 21:46:06 -05:00
Rafael J. Wysocki
13de22c59f Merge branch 'pm-cpuidle'
* pm-cpuidle:
  intel_idle: close avn_cstates array with correct marker
  Revert "intel_idle: mark states tables with __initdata tag"
2014-01-10 03:08:58 +01:00
Jiang Liu
88390996c9 intel_idle: close avn_cstates array with correct marker
Close avn_cstates array with correct marker to avoid overflow
in function intel_idle_cpu_init().

[rjw: The problem was introduced when commit 22e580d07f was merged
 on top of eba682a5ae (intel_idle: shrink states tables).]

Fixes: 22e580d07f (intel_idle: Fixed C6 state on Avoton/Rangeley processors)
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-01-10 03:06:06 +01:00
John W. Linville
0f74d82d80 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2014-01-09 10:19:01 -05:00
Jiang Liu
ba0dc81ed5 Revert "intel_idle: mark states tables with __initdata tag"
This reverts commit 9d046ccb98.

Commit 9d046ccb98 marks all state tables with __initdata, but
the state table may be accessed when doing CPU online, which then
causing system crash as below:

[  204.188841] BUG: unable to handle kernel paging request at ffffffff8227cce8
[  204.196844] IP: [<ffffffff814aa1c0>] intel_idle_cpu_init+0x40/0x130
[  204.203996] PGD 1e11067 PUD 1e12063 PMD 455859063 PTE 800000000227c062
[  204.211638] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
[  204.216975] Modules linked in: x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd gpio_ich microcode joydev sb_edac edac_core ipmi_si lpc_ich ipmi_msghandler lp tpm_tis parport wmi mac_hid acpi_pad hid_generic ixgbe isci usbhid dca hid libsas ptp ahci libahci scsi_transport_sas megaraid_sas pps_core mdio
[  204.262815] CPU: 11 PID: 1489 Comm: bash Not tainted 3.13.0-rc7+ #48
[  204.269993] Hardware name: Intel Corporation BRICKLAND/BRICKLAND, BIOS BRIVTIN1.86B.0047.L09.1312061514 12/06/2013
[  204.281646] task: ffff8804303a24a0 ti: ffff880440fac000 task.ti: ffff880440fac000
[  204.290311] RIP: 0010:[<ffffffff814aa1c0>]  [<ffffffff814aa1c0>] intel_idle_cpu_init+0x40/0x130
[  204.300184] RSP: 0018:ffff880440fadd28  EFLAGS: 00010286
[  204.306192] RAX: ffffffff8227cca0 RBX: ffffe8fff1a03400 RCX: 0000000000000007
[  204.314244] RDX: ffff88045f400000 RSI: 0000000000000009 RDI: 0000000000001120
[  204.322296] RBP: ffff880440fadd38 R08: 0000000000000000 R09: 0000000000000001
[  204.330411] R10: 0000000000000001 R11: 0000000000000000 R12: 000000000000001e
[  204.338482] R13: 00000000ffffffdb R14: 0000000000000001 R15: 0000000000000000
[  204.346743] FS:  00007f64f7b0c740(0000) GS:ffff88045ce00000(0000) knlGS:0000000000000000
[  204.355919] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  204.362449] CR2: ffffffff8227cce8 CR3: 0000000444ab0000 CR4: 00000000001407e0
[  204.370520] Stack:
[  204.372853]  000000000000001e ffffffff81f10240 ffff880440fadd50 ffffffff814aa307
[  204.381519]  ffffffff81ea80e0 ffff880440fadda0 ffffffff8185a230 0000000000000000
[  204.390196]  000000000000001e 0000000000000002 0000000000000002 0000000000000000
[  204.398856] Call Trace:
[  204.401683]  [<ffffffff814aa307>] cpu_hotplug_notify+0x57/0x70
[  204.408638]  [<ffffffff8185a230>] notifier_call_chain+0x100/0x150
[  204.415553]  [<ffffffff810a7dae>] __raw_notifier_call_chain+0xe/0x10
[  204.422772]  [<ffffffff81072163>] cpu_notify+0x23/0x50
[  204.428616]  [<ffffffff810723b2>] _cpu_up+0x132/0x1a0
[  204.434361]  [<ffffffff8107249d>] cpu_up+0x7d/0xa0
[  204.439819]  [<ffffffff81836c9c>] cpu_subsys_online+0x3c/0x90
[  204.446345]  [<ffffffff81554625>] device_online+0x45/0xa0
[  204.452471]  [<ffffffff815546ce>] online_store+0x4e/0x80
[  204.458511]  [<ffffffff815519a8>] dev_attr_store+0x18/0x30
[  204.464744]  [<ffffffff812a68f1>] sysfs_write_file+0x151/0x1c0
[  204.471681]  [<ffffffff81217ef1>] vfs_write+0xe1/0x160
[  204.477524]  [<ffffffff8121889c>] SyS_write+0x4c/0x90
[  204.483270]  [<ffffffff8185f2ed>] system_call_fastpath+0x1a/0x1f
[  204.490081] Code: 41 54 41 89 fc 8b 3d 48 25 85 01 53 48 8b 1d 30 25 85 01 48 03 1c c5 40 90 fb 81 48 8b 05 19 25 85 01 c7 43 0c 01 00 00 00 66 90 <48> 83 78 48 00 74 4f 41 83 c0 01 41 39 f0 7e 10 48 c7 c7 38 79
[  204.515723] RIP  [<ffffffff814aa1c0>] intel_idle_cpu_init+0x40/0x130
[  204.522996]  RSP <ffff880440fadd28>
[  204.526976] CR2: ffffffff8227cce8
[  204.530766] ---[ end trace 336f56cc3d1cfc8c ]---

Fixes: 9d046ccb98 (intel_idle: mark states tables with __initdata tag)
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-01-09 14:13:05 +01:00
Linus Torvalds
7d1c153ab3 Merge branch 'parisc-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fix from Helge Deller:
 "This patch fixes the kmap/kunmap implementation on parisc and finally
  makes AIO work on parisc"

* 'parisc-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Ensure full cache coherency for kmap/kunmap
2014-01-09 09:09:26 +08:00
Linus Torvalds
f8829150d8 Merge branch 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
 "Late fixes for libata.  Nothing too interesting.  Adding missing PM
  callbacks to satat_sis and an additional PCI ID for ahci"

* 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  sata_sis: missing PM support
  ahci: add PCI ID for Marvell 88SE9170 SATA controller
2014-01-09 09:08:23 +08:00
John David Anglin
f8dae00684 parisc: Ensure full cache coherency for kmap/kunmap
Helge Deller noted a few weeks ago problems with the AIO support on
parisc. This change is the result of numerous iterations on how best to
deal with this problem.

The solution adopted here is to provide full cache coherency in a
uniform manner on all parisc systems. This involves calling
flush_dcache_page() on kmap operations and flush_kernel_dcache_page() on
kunmap operations. As a result, the copy_user_page() and
clear_user_page() functions can be removed and the overall code is
simpler.

The change ensures that both userspace and kernel aliases to a mapped
page are invalidated and flushed. This is necessary for the correct
operation of PA8800 and PA8900 based systems which do not support
inequivalent aliases.

With this change, I have observed no cache related issues on c8000 and
rp3440. It is now possible for example to do kernel builds with "-j64"
on four way systems.

On systems using XFS file systems, the patch recently posted by Mikulas
Patocka to "fix crash using XFS on loopback" is needed to avoid a hang
caused by an uninitialized lock passed to flush_dcache_page() in the
page struct.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # v3.9+
Signed-off-by: Helge Deller <deller@gmx.de>
2014-01-08 23:02:57 +01:00
John W. Linville
2eff7c791a This is the first NFC fixes pull request for 3.13.
It only contains one fix for a regression introduced with commit
 e29a9e2ae1. Without this fix, we can not establish a p2p link in
 target mode. Only initiator mode works.
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Merge tag 'nfc-fixes-3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-fixes

Samuel Ortiz <sameo@linux.intel.com> says:

"This is the first NFC fixes pull request for 3.13.

It only contains one fix for a regression introduced with commit
e29a9e2ae1. Without this fix, we can not establish a p2p link in
target mode. Only initiator mode works."

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-08 13:36:17 -05:00
James Hogan
778037e1cc clk: clk-divider: fix divisor > 255 bug
Commit 6d9252bd9a (clk: Add support for power of two type dividers)
merged in v3.6 added the _get_val function to convert a divisor value to
a register field value depending on the flags. However it used the type
u8 for the div field, causing divisors larger than 255 to be masked
and the resultant clock rate to be too high.

E.g. in my case an 11bit divider was supposed to divide 24.576 MHz down
to 32.768KHz. The divisor was correctly calculated as 750 (0x2ee). This
was masked to 238 (0xee) resulting in a frequency of 103.26KHz.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: stable@vger.kernel.org
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-01-08 08:33:12 -08:00
Dave Airlie
ceb3b0212d Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/nouveau/linux-2.6 into drm-fixes
misc fixes for nouveau, one more msi rearm, regression fix for old bioses
crash and leak fixes.

* 'drm-nouveau-next' of git://anongit.freedesktop.org/nouveau/linux-2.6:
  drm/nouveau/nouveau: fix memory leak in nouveau_crtc_page_flip()
  drm/nouveau/bios: fix offset calculation for BMPv1 bioses
  drm/nouveau: return offset of allocated notifier
  drm/nouveau/bios: make jump conditional
  drm/nvce/mc: fix msi rearm on GF114
  drm/nvc0/gr: fix mthd data submission
  drm/nouveau: populate master subdev pointer only when fully constructed
2014-01-08 17:57:45 +10:00
Dave Airlie
a3f28efa57 Merge tag 'drm-intel-fixes-2014-01-08' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
Just a revert (gen4 backlight seems a lost cause) and a tlb coherency fix
for bdw, plus the patch to sign up Jani for co-maintainer. Thanks to Ben
for taking care of -fixes while I've enjoyed a bit of vacation.

* tag 'drm-intel-fixes-2014-01-08' of git://people.freedesktop.org/~danvet/drm-intel:
  MAINTAINERS: Updates for drm/i915
  Revert "drm/i915: assume all GM45 Acer laptops use inverted backlight PWM"
  drm/i915/bdw: Flush system agent on gen8 also
2014-01-08 17:55:44 +10:00
Christian Engelmayer
bbc6319676 drm/nouveau/nouveau: fix memory leak in nouveau_crtc_page_flip()
Fix a memory leak in the nouveau_crtc_page_flip() error handling path.

Signed-off-by: Christian Engelmayer <cengelma@gmx.at>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-08 16:17:48 +10:00
Ilia Mirkin
5d2f4767c4 drm/nouveau/bios: fix offset calculation for BMPv1 bioses
The only BIOS on record that needs the 14 offset has a bios major
version 2 but BMP version 1.01. Another bunch of BIOSes that need the 18
offset have BMP version 2.01 or 5.01 or higher. So instead of looking at the
bios major version, look at the BMP version. BIOSes with BMP version 0
do not contain a detectable script, so always return 0 for them.

See https://bugs.freedesktop.org/show_bug.cgi?id=68835

Reported-by: Mauro Molinari <mauromol@tiscali.it>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-08 15:56:10 +10:00
David S. Miller
a04c0e2c0d Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
The following patchset contains two patches:

* fix the IRC NAT helper which was broken when adding (incomplete) IPv6
  support, from Daniel Borkmann.

* Refine the previous bugtrap that Jesper added to catch problems for the
  usage of the sequence adjustment extension in IPVs in Dec 16th, it may
  spam messages in case of finding a real bug.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-07 18:38:17 -05:00
Erik Hugne
732256b933 tipc: correctly unlink packets from deferred packet queue
When we pull a received packet from a link's 'deferred packets' queue
for processing, its 'next' pointer is not cleared, and still refers to
the next packet in that queue, if any. This is incorrect, but caused
no harm before commit 40ba3cdf54 ("tipc:
message reassembly using fragment chain") was introduced. After that
commit, it may sometimes lead to the following oops:

general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC
Modules linked in: tipc
CPU: 4 PID: 0 Comm: swapper/4 Tainted: G        W 3.13.0-rc2+ #6
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
task: ffff880017af4880 ti: ffff880017aee000 task.ti: ffff880017aee000
RIP: 0010:[<ffffffff81710694>]  [<ffffffff81710694>] skb_try_coalesce+0x44/0x3d0
RSP: 0018:ffff880016603a78  EFLAGS: 00010212
RAX: 6b6b6b6bd6d6d6d6 RBX: ffff880013106ac0 RCX: ffff880016603ad0
RDX: ffff880016603ad7 RSI: ffff88001223ed00 RDI: ffff880013106ac0
RBP: ffff880016603ab8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88001223ed00
R13: ffff880016603ad0 R14: 000000000000058c R15: ffff880012297650
FS:  0000000000000000(0000) GS:ffff880016600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 000000000805b000 CR3: 0000000011f5d000 CR4: 00000000000006e0
Stack:
 ffff880016603a88 ffffffff810a38ed ffff880016603aa8 ffff88001223ed00
 0000000000000001 ffff880012297648 ffff880016603b68 ffff880012297650
 ffff880016603b08 ffffffffa0006c51 ffff880016603b08 00ffffffa00005fc
Call Trace:
 <IRQ>
 [<ffffffff810a38ed>] ? trace_hardirqs_on+0xd/0x10
 [<ffffffffa0006c51>] tipc_link_recv_fragment+0xd1/0x1b0 [tipc]
 [<ffffffffa0007214>] tipc_recv_msg+0x4e4/0x920 [tipc]
 [<ffffffffa00016f0>] ? tipc_l2_rcv_msg+0x40/0x250 [tipc]
 [<ffffffffa000177c>] tipc_l2_rcv_msg+0xcc/0x250 [tipc]
 [<ffffffffa00016f0>] ? tipc_l2_rcv_msg+0x40/0x250 [tipc]
 [<ffffffff8171e65b>] __netif_receive_skb_core+0x80b/0xd00
 [<ffffffff8171df94>] ? __netif_receive_skb_core+0x144/0xd00
 [<ffffffff8171eb76>] __netif_receive_skb+0x26/0x70
 [<ffffffff8171ed6d>] netif_receive_skb+0x2d/0x200
 [<ffffffff8171fe70>] napi_gro_receive+0xb0/0x130
 [<ffffffff815647c2>] e1000_clean_rx_irq+0x2c2/0x530
 [<ffffffff81565986>] e1000_clean+0x266/0x9c0
 [<ffffffff81985f7b>] ? notifier_call_chain+0x2b/0x160
 [<ffffffff8171f971>] net_rx_action+0x141/0x310
 [<ffffffff81051c1b>] __do_softirq+0xeb/0x480
 [<ffffffff819817bb>] ? _raw_spin_unlock+0x2b/0x40
 [<ffffffff810b8c42>] ? handle_fasteoi_irq+0x72/0x100
 [<ffffffff81052346>] irq_exit+0x96/0xc0
 [<ffffffff8198cbc3>] do_IRQ+0x63/0xe0
 [<ffffffff81981def>] common_interrupt+0x6f/0x6f
 <EOI>

This happens when the last fragment of a message has passed through the
the receiving link's 'deferred packets' queue, and at least one other
packet was added to that queue while it was there. After the fragment
chain with the complete message has been successfully delivered to the
receiving socket, it is released. Since 'next' pointer of the last
fragment in the released chain now is non-NULL, we get the crash shown
above.

We fix this by clearing the 'next' pointer of all received packets,
including those being pulled from the 'deferred' queue, before they
undergo any further processing.

Fixes: 40ba3cdf54 ("tipc: message reassembly using fragment chain")
Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Reported-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-07 16:15:24 -05:00
Li RongQing
657e5d1965 ipv6: pcpu_tstats.syncp should be initialised in ip6_vti.c
initialise pcpu_tstats.syncp to kill the calltrace
[   11.973950] Call Trace:
[   11.973950]  [<819bbaff>] dump_stack+0x48/0x60
[   11.973950]  [<819bbaff>] dump_stack+0x48/0x60
[   11.973950]  [<81078dcf>] __lock_acquire.isra.22+0x1bf/0xc10
[   11.973950]  [<81078dcf>] __lock_acquire.isra.22+0x1bf/0xc10
[   11.973950]  [<81079fa7>] lock_acquire+0x77/0xa0
[   11.973950]  [<81079fa7>] lock_acquire+0x77/0xa0
[   11.973950]  [<817ca7ab>] ? dev_get_stats+0xcb/0x130
[   11.973950]  [<817ca7ab>] ? dev_get_stats+0xcb/0x130
[   11.973950]  [<8183862d>] ip_tunnel_get_stats64+0x6d/0x230
[   11.973950]  [<8183862d>] ip_tunnel_get_stats64+0x6d/0x230
[   11.973950]  [<817ca7ab>] ? dev_get_stats+0xcb/0x130
[   11.973950]  [<817ca7ab>] ? dev_get_stats+0xcb/0x130
[   11.973950]  [<811cf8c1>] ? __nla_reserve+0x21/0xd0
[   11.973950]  [<811cf8c1>] ? __nla_reserve+0x21/0xd0
[   11.973950]  [<817ca7ab>] dev_get_stats+0xcb/0x130
[   11.973950]  [<817ca7ab>] dev_get_stats+0xcb/0x130
[   11.973950]  [<817d5409>] rtnl_fill_ifinfo+0x569/0xe20
[   11.973950]  [<817d5409>] rtnl_fill_ifinfo+0x569/0xe20
[   11.973950]  [<810352e0>] ? kvm_clock_read+0x20/0x30
[   11.973950]  [<810352e0>] ? kvm_clock_read+0x20/0x30
[   11.973950]  [<81008e38>] ? sched_clock+0x8/0x10
[   11.973950]  [<81008e38>] ? sched_clock+0x8/0x10
[   11.973950]  [<8106ba45>] ? sched_clock_local+0x25/0x170
[   11.973950]  [<8106ba45>] ? sched_clock_local+0x25/0x170
[   11.973950]  [<810da6bd>] ? __kmalloc+0x3d/0x90
[   11.973950]  [<810da6bd>] ? __kmalloc+0x3d/0x90
[   11.973950]  [<817b8c10>] ? __kmalloc_reserve.isra.41+0x20/0x70
[   11.973950]  [<817b8c10>] ? __kmalloc_reserve.isra.41+0x20/0x70
[   11.973950]  [<810da81a>] ? slob_alloc_node+0x2a/0x60
[   11.973950]  [<810da81a>] ? slob_alloc_node+0x2a/0x60
[   11.973950]  [<817b919a>] ? __alloc_skb+0x6a/0x2b0
[   11.973950]  [<817b919a>] ? __alloc_skb+0x6a/0x2b0
[   11.973950]  [<817d8795>] rtmsg_ifinfo+0x65/0xe0
[   11.973950]  [<817d8795>] rtmsg_ifinfo+0x65/0xe0
[   11.973950]  [<817cbd31>] register_netdevice+0x531/0x5a0
[   11.973950]  [<817cbd31>] register_netdevice+0x531/0x5a0
[   11.973950]  [<81892b87>] ? ip6_tnl_get_cap+0x27/0x90
[   11.973950]  [<81892b87>] ? ip6_tnl_get_cap+0x27/0x90
[   11.973950]  [<817cbdb6>] register_netdev+0x16/0x30
[   11.973950]  [<817cbdb6>] register_netdev+0x16/0x30
[   11.973950]  [<81f574a6>] vti6_init_net+0x1c4/0x1d4
[   11.973950]  [<81f574a6>] vti6_init_net+0x1c4/0x1d4
[   11.973950]  [<81f573af>] ? vti6_init_net+0xcd/0x1d4
[   11.973950]  [<81f573af>] ? vti6_init_net+0xcd/0x1d4
[   11.973950]  [<817c16df>] ops_init.constprop.11+0x17f/0x1c0
[   11.973950]  [<817c16df>] ops_init.constprop.11+0x17f/0x1c0
[   11.973950]  [<817c1779>] register_pernet_operations.isra.9+0x59/0x90
[   11.973950]  [<817c1779>] register_pernet_operations.isra.9+0x59/0x90
[   11.973950]  [<817c18d1>] register_pernet_device+0x21/0x60
[   11.973950]  [<817c18d1>] register_pernet_device+0x21/0x60
[   11.973950]  [<81f574b6>] ? vti6_init_net+0x1d4/0x1d4
[   11.973950]  [<81f574b6>] ? vti6_init_net+0x1d4/0x1d4
[   11.973950]  [<81f574c7>] vti6_tunnel_init+0x11/0x68
[   11.973950]  [<81f574c7>] vti6_tunnel_init+0x11/0x68
[   11.973950]  [<81f572a1>] ? mip6_init+0x73/0xb4
[   11.973950]  [<81f572a1>] ? mip6_init+0x73/0xb4
[   11.973950]  [<81f0cba4>] do_one_initcall+0xbb/0x15b
[   11.973950]  [<81f0cba4>] do_one_initcall+0xbb/0x15b
[   11.973950]  [<811a00d8>] ? sha_transform+0x528/0x1150
[   11.973950]  [<811a00d8>] ? sha_transform+0x528/0x1150
[   11.973950]  [<81f0c544>] ? repair_env_string+0x12/0x51
[   11.973950]  [<81f0c544>] ? repair_env_string+0x12/0x51
[   11.973950]  [<8105c30d>] ? parse_args+0x2ad/0x440
[   11.973950]  [<8105c30d>] ? parse_args+0x2ad/0x440
[   11.973950]  [<810546be>] ? __usermodehelper_set_disable_depth+0x3e/0x50
[   11.973950]  [<810546be>] ? __usermodehelper_set_disable_depth+0x3e/0x50
[   11.973950]  [<81f0cd27>] kernel_init_freeable+0xe3/0x182
[   11.973950]  [<81f0cd27>] kernel_init_freeable+0xe3/0x182
[   11.973950]  [<81f0c532>] ? do_early_param+0x7a/0x7a
[   11.973950]  [<81f0c532>] ? do_early_param+0x7a/0x7a
[   11.973950]  [<819b5b1b>] kernel_init+0xb/0x100
[   11.973950]  [<819b5b1b>] kernel_init+0xb/0x100
[   11.973950]  [<819cebf7>] ret_from_kernel_thread+0x1b/0x28
[   11.973950]  [<819cebf7>] ret_from_kernel_thread+0x1b/0x28
[   11.973950]  [<819b5b10>] ? rest_init+0xc0/0xc0
[   11.973950]  [<819b5b10>] ? rest_init+0xc0/0xc0

Before 469bdcefdc ("ipv6: fix the use of pcpu_tstats in ip6_vti.c"),
the pcpu_tstats.syncp is not used to pretect the 64bit elements of
pcpu_tstats, so not appear this calltrace.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-07 14:12:46 -05:00
Daniel Vetter
47f956477d MAINTAINERS: Updates for drm/i915
Jani for co-maintainer!

Jani has been a really active bug-scrubber in the past few months.
I've asked him whether he wants to do this in a more official capacity
and he agreed. I've already chatted with Dave and Jesse and they
support this.

Note that everyone can't now just relax because "Jani will do all the
bug scrubbing" - au contraire expect more nagging and poking now that
we have more bandwidth.

Longer-term the plan is to share more of the maintainer duties, but we
need to fix up the infrastructure a bit first (like moving the git
repo to a common location).

While at it also add the newly set-up patchwork instance.

Cc: Dave Airlie <airlied@gmail.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-07 09:33:16 +01:00
Bob Gleitsmann
c1ccaa646c drm/nouveau: return offset of allocated notifier
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-07 13:38:06 +10:00
Ilia Mirkin
6d60792ec0 drm/nouveau/bios: make jump conditional
This fixes a hang in VBIOS scripts of the form "condition; jump".
The jump used to always be executed, while now it will only be
executed if the condition is true.

See https://bugs.freedesktop.org/show_bug.cgi?id=72943

Reported-by: Darcy Brás da Silva <dardevelin@cidadecool.com>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: stable@vger.kernel.org
2014-01-07 13:37:55 +10:00
Sid Boyce
6e9cbb40d2 drm/nvce/mc: fix msi rearm on GF114
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-07 13:37:54 +10:00
Kelly Doran
854cc0e4cb drm/nvc0/gr: fix mthd data submission
If the initial data element is 0, it will never be written, even
though the value from the previous method may be there.

Signed-off-by: Kelly Doran <kel.p.doran@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-07 13:37:54 +10:00
Ben Skeggs
61b365a505 drm/nouveau: populate master subdev pointer only when fully constructed
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-07 13:37:36 +10:00
Linus Torvalds
ef350bb7c5 Fix a regression introduced in v3.13-rc6
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 bugfix from Ted Ts'o:
 "Fix a regression introduced in v3.13-rc6"

* tag 'ext4_for_linus_stable' of http://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix bigalloc regression
2014-01-07 08:22:42 +08:00
Linus Torvalds
a707271a81 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "I'm hoping this is the very last batch of networking fixes for 3.13,
  here goes nothing:

   1) Fix crashes in VLAN's header_ops passthru.

   2) Bridge multicast code needs to use BH spinlocks to prevent
      deadlocks with timers.  From Curt Brune.

   3) ipv6 tunnels lack proper synchornization when updating percpu
      statistics.  From Li RongQing.

   4) Fixes to bnx2x driver from Yaniv Rosner, Dmitry Kravkov and Michal
      Kalderon.

   5) Avoid undefined operator evaluation order in llc code, from Daniel
      Borkmann.

   6) Error paths in various GSO offload paths do not unwind properly,
      in particular they must undo any modifications they have made to
      the SKB.  From Wei-Chun Chao.

   7) Fix RX refill races during restore in virtio-net, from Jason Wang.

   8) Fix SKB use after free in LLC code, from Daniel Borkmann.

   9) Missing unlock and OOPS in netpoll code when VLAN tag handling
      fails.

  10) Fix vxlan device attachment wrt ipv6, from Fan Du.

  11) Don't allow creating infiniband links to non-infiniband devices,
      from Hangbin Liu.

  12) Revert FEC phy reset active low change, it breaks things.  From
      Fabio Estevam.

  13) Fix header pointer handling in 6lowpan header building code, from
      Daniel Borkmann.

  14) Fix RSS handling in be2net driver, from Vasundhara Volam.

  15) Fix modem port indexing in HSO driver, from Dan Williams"

* http://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (38 commits)
  bridge: use spin_lock_bh() in br_multicast_set_hash_max
  ipv6: don't install anycast address for /128 addresses on routers
  hso: fix handling of modem port SERIAL_STATE notifications
  isdn: Drop big endian cpp checks from telespci and hfc_pci drivers
  be2net: fix max_evt_qs calculation for BE3 in SR-IOV config
  be2net: increase the timeout value for loopback-test FW cmd
  be2net: disable RSS when number of RXQs is reduced to 1 via set-channels
  xen-netback: Include header for vmalloc
  net: 6lowpan: fix lowpan_header_create non-compression memcpy call
  fec: Revert "fec: Do not assume that PHY reset is active low"
  bnx2x: fix VLAN configuration for VFs.
  bnx2x: fix AFEX memory overflow
  bnx2x: Clean before update RSS arrives
  bnx2x: Correct number of MSI-X vectors for VFs
  bnx2x: limit number of interrupt vectors for 57711
  qlcnic: Fix bug in Tx completion path
  infiniband: make sure the src net is infiniband when create new link
  {vxlan, inet6} Mark vxlan_dev flags with VXLAN_F_IPV6 properly
  cxgb4: allow large buffer size to have page size
  netpoll: Fix missing TXQ unlock and and OOPS.
  ...
2014-01-07 08:16:28 +08:00
Rafael J. Wysocki
77410baf45 Merge branches 'acpi-battery' and 'pm-cpufreq'
* acpi-battery:
  ACPI / Battery: Add a _BIX quirk for NEC LZ750/LS

* pm-cpufreq:
  intel_pstate: Add X86_FEATURE_APERFMPERF to cpu match parameters.
2014-01-06 22:49:08 +01:00
Curt Brune
fe0d692bbc bridge: use spin_lock_bh() in br_multicast_set_hash_max
br_multicast_set_hash_max() is called from process context in
net/bridge/br_sysfs_br.c by the sysfs store_hash_max() function.

br_multicast_set_hash_max() calls spin_lock(&br->multicast_lock),
which can deadlock the CPU if a softirq that also tries to take the
same lock interrupts br_multicast_set_hash_max() while the lock is
held .  This can happen quite easily when any of the bridge multicast
timers expire, which try to take the same lock.

The fix here is to use spin_lock_bh(), preventing other softirqs from
executing on this CPU.

Steps to reproduce:

1. Create a bridge with several interfaces (I used 4).
2. Set the "multicast query interval" to a low number, like 2.
3. Enable the bridge as a multicast querier.
4. Repeatedly set the bridge hash_max parameter via sysfs.

  # brctl addbr br0
  # brctl addif br0 eth1 eth2 eth3 eth4
  # brctl setmcqi br0 2
  # brctl setmcquerier br0 1

  # while true ; do echo 4096 > /sys/class/net/br0/bridge/hash_max; done

Signed-off-by: Curt Brune <curt@cumulusnetworks.com>
Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-06 16:39:47 -05:00