Commit Graph

288399 Commits

Author SHA1 Message Date
Al Viro
86b62a2cb4 aio: fix io_setup/io_destroy race
Have ioctx_alloc() return an extra reference, so that caller would drop it
on success and not bother with re-grabbing it on failure exit.  The current
code is obviously broken - io_destroy() from another thread that managed
to guess the address io_setup() would've returned would free ioctx right
under us; gets especially interesting if aio_context_t * we pass to
io_setup() points to PROT_READ mapping, so put_user() fails and we end
up doing io_destroy() on kioctx another thread has just got freed...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Benjamin LaHaise <bcrl@kvack.org>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-09 18:59:59 -08:00
Linus Torvalds
86e0600833 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs updates from Chris Mason:
 "I have two additional and btrfs fixes in my for-linus branch.  One is
  a casting error that leads to memory corruption on i386 during scrub,
  and the other fixes a corner case in the backref walking code (also
  triggered by scrub)."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix casting error in scrub reada code
  btrfs: fix locking issues in find_parent_nodes()
2012-03-09 18:09:18 -08:00
Hugh Dickins
be22aece68 memcg: revert fix to mapcount check for this release
Respectfully revert commit e6ca7b89dc "memcg: fix mapcount check
in move charge code for anonymous page" for the 3.3 release, so that
it behaves exactly like releases 2.6.35 through 3.2 in this respect.

Horiguchi-san's commit is correct in itself, 1 makes much more sense
than 2 in that check; but it does not go far enough - swapcount
should be considered too - if we really want such a check at all.

We appear to have reached agreement now, and expect that 3.4 will
remove the mapcount check, but had better not make 3.3 different.

Signed-off-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-09 15:32:20 -08:00
Thomas Gleixner
a7f4255f90 x86: Derandom delay_tsc for 64 bit
Commit f0fbf0abc0 ("x86: integrate delay functions") converted
delay_tsc() into a random delay generator for 64 bit.  The reason is
that it merged the mostly identical versions of delay_32.c and
delay_64.c.  Though the subtle difference of the result was:

 static void delay_tsc(unsigned long loops)
 {
-	unsigned bclock, now;
+	unsigned long bclock, now;

Now the function uses rdtscl() which returns the lower 32bit of the
TSC. On 32bit that's not problematic as unsigned long is 32bit. On 64
bit this fails when the lower 32bit are close to wrap around when
bclock is read, because the following check

       if ((now - bclock) >= loops)
       	  	break;

evaluated to true on 64bit for e.g. bclock = 0xffffffff and now = 0
because the unsigned long (now - bclock) of these values results in
0xffffffff00000001 which is definitely larger than the loops
value. That explains Tvortkos observation:

"Because I am seeing udelay(500) (_occasionally_) being short, and
 that by delaying for some duration between 0us (yep) and 491us."

Make those variables explicitely u32 again, so this works for both 32
and 64 bit.

Reported-by: Tvrtko Ursulin <tvrtko.ursulin@onelan.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org # >= 2.6.27
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-09 12:43:27 -08:00
Linus Torvalds
c447064de4 sound fixes for 3.3-rc7
Nothing exciting here: just a few regression fixes for HD-audio and ASoC,
 also the support of missing 32bit compat ioctl for HDSPM.
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Merge tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Nothing exciting here: just a few regression fixes for HD-audio and
  ASoC, also the support of missing 32bit compat ioctl for HDSPM."

* tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hdspm - Provide ioctl_compat
  ALSA: hda/realtek - Apply the coef-setup only to ALC269VB
  ALSA: hda - add quirk to detect CD input on Gigabyte EP45-DS3
  ASoC: neo1973: fix neo1973 wm8753 initialization
2012-03-09 12:14:23 -08:00
David Brown
8cd5c8661d MAINTAINERS: new git entry for arm/mach-msm
The msm git tree moved to

  git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm.git

Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-09 12:13:36 -08:00
Linus Torvalds
0ab5d757db Fix for C6X KSTK_EIP and KSTK_ESP macros.
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Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming

Pull C6X fix from Mark Salter:
 "Fix for C6X KSTK_EIP and KSTK_ESP macros."

* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
  C6X: fix KSTK_EIP and KSTK_ESP macros
2012-03-09 07:27:38 -08:00
Linus Torvalds
0cacaf51a0 IOMMU fixes for Linux v3.3-rc6
Two fixes are queued up. The first is an additional fix for the OMAP
 initialization order issue and the second patch fixes a possible section
 mismatch which can lead to a kernel crash in the AMD IOMMU driver when
 suspend/resume is used and the compiler has not inlined the
 iommu_set_device_table function.
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Merge tag 'iommu-fixes-v3.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull two IOMMU fixes from Joerg Roedel:
 "The first is an additional fix for the OMAP initialization order issue
  and the second patch fixes a possible section mismatch which can lead
  to a kernel crash in the AMD IOMMU driver when suspend/resume is used
  and the compiler has not inlined the iommu_set_device_table function."

* tag 'iommu-fixes-v3.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  x86/amd: iommu_set_device_table() must not be __init
  ARM: OMAP: fix iommu, not mailbox
2012-03-09 07:26:25 -08:00
Linus Torvalds
45b8da90f2 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull radeon drm stuff from Dave Airlie:
 "Just some radeon fixes, one is for an oops where we run out of ioremap
  space on some big hardware systems in 32-bit mode, stuff doesn't work
  properly but at least the machine will boot.

  One regression fix, and two bugs, one hw, one blit code."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/kms: fix hdmi duallink checks
  drm/radeon/kms: set SX_MISC in the r6xx blit code (v2)
  drm/radeon: deal with errors from framebuffer init path.
  drm/radeon: fix a semaphore deadlock on pre cayman asics
2012-03-09 07:23:17 -08:00
Linus Torvalds
e304dfdb03 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking from David Miller:

1) IPV4 routing metrics can become stale when routes are changed by the
   administrator, fix from Steffen Klassert.

2) atl1c does "val |= XXX;" where XXX is a bit number not a bit mask,
   fix by using set_bit.  From Dan Carpenter.

3) Memory accounting bug in carl9170 driver results in wedged TX queue.
   Fix from Nicolas Cavallari.

4) iwlwifi accidently uses "sizeof(ptr)" instead of "sizeof(*ptr)", fix
   from Johannes Berg.

5) Openvswitch doesn't honor dp_ifindex when doing vport lookups, fix
   from Ben Pfaff.

6) ehea conversion to 64-bit stats lost multicast and rx_errors
   accounting, fix from Eric Dumazet.

7) Bridge state transition logging in br_stp_disable_port() is busted,
   it's emitted at the wrong time and the message is in the wrong tense,
   fix from Paulius Zaleckas.

8) mlx4 device erroneously invokes the queue resize firmware operation
   twice, fix from Jack Morgenstein.

9) Fix deadlock in usbnet, need to drop lock when invoking usb_unlink_urb()
   otherwise we recurse into taking it again.  Fix from Sebastian Siewior.

10) hyperv network driver uses the wrong driver name string, fix from
    Haiyang Zhang.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  net/hyperv: Use the built-in macro KBUILD_MODNAME for this driver
  net/usbnet: avoid recursive locking in usbnet_stop()
  route: Remove redirect_genid
  inetpeer: Invalidate the inetpeer tree along with the routing cache
  mlx4_core: fix bug in modify_cq wrapper for resize flow.
  atl1c: set ATL1C_WORK_EVENT_RESET bit correctly
  bridge: fix state reporting when port is disabled
  bridge: br_log_state() s/entering/entered/
  ehea: restore multicast and rx_errors fields
  openvswitch: Fix checksum update for actions on UDP packets.
  openvswitch: Honor dp_ifindex, when specified, for vport lookup by name.
  iwlwifi: fix wowlan suspend
  mwifiex: reset encryption mode flag before association
  carl9170: fix frame delivery if sta is in powersave mode
  carl9170: Fix memory accounting when sta is in power-save mode.
2012-03-09 07:14:44 -08:00
Linus Torvalds
9f8050c4f9 Last minute fixes for 3.3
One samsung build fix due to a mis-applied patch, and a small set of OMAP fixes.
 This should be the last from arm-soc for 3.3, hopefully.
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Merge tag 'fixes-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull last minute fixes from Olof Johansson:
 "One samsung build fix due to a mis-applied patch, and a small set of
  OMAP fixes.  This should be the last from arm-soc for 3.3, hopefully."

* tag 'fixes-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: S3C2440: Fixed build error for s3c244x
  ARM: OMAP2+: Fix module build errors with CONFIG_OMAP4_ERRATA_I688
  ARM: OMAP: id: Add missing break statement in omap3xxx_check_revision
  ARM: OMAP2+: Remove apply_uV constraints for fixed regulator
  ARM: OMAP: irqs: Fix NR_IRQS value to handle PRCM interrupts
2012-03-08 17:32:42 -08:00
Linus Torvalds
9a0cee7114 Another small, clear fix in a specific driver.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "Another small, clear fix in a specific driver."

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: tps65910: Configure correct value for VDDCTRL vout reg
2012-03-08 17:25:17 -08:00
Linus Torvalds
ee0849c911 Minor bug fixes and documentation updates for v3.3-rc5
Fixes up a duplicate #include, adds an empty implementation of
 of_find_compatible_node() and make git ignore .dtb files.  And fix
 up bus name on OF described PHYs.  Nothing exciting here.
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull minor devicetree bug fixes and documentation updates from Grant Likely:
 "Fixes up a duplicate #include, adds an empty implementation of
  of_find_compatible_node() and make git ignore .dtb files.  And fix up
  bus name on OF described PHYs.  Nothing exciting here."

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  doc: dt: Fix broken reference in gpio-leds documentation
  of/mdio: fix fixed link bus name
  of/fdt.c: asm/setup.h included twice
  of: add picochip vendor prefix
  dt: add empty of_find_compatible_node function
  ARM: devicetree: Add .dtb files to arch/arm/boot/.gitignore
2012-03-08 17:24:27 -08:00
Linus Torvalds
7d77696e92 SPI section mismatch bug fix for v3.3-rc3
Russell King (1):
       Fix section mismatch in spi-pl022.c
 
 Minor fix for pl022_dma_probe() function which was put in the wrong section.
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Merge tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull SPI section mismatch bug fix for v3.3-rc3 from Grant Likely:
 "Minor fix for pl022_dma_probe() function which was put in the wrong
  section."

* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  Fix section mismatch in spi-pl022.c
2012-03-08 17:23:45 -08:00
Linus Torvalds
42a6c7ef3b Four patches since v3.3-rc6:
1bd612a hwmon: (jc42) Add support for AT30TS00, TS3000GB2, TSE2002GB2, and MCP9804
 7ad6307 hwmon: (zl6100) Maintain delay parameter in driver instance data
 7cb3c44 hwmon: (pmbus_core) Fix maximum number of POUT alarm attributes
 4de8612 hwmon: (jc42) Add support for ST Microelectronics STTS2002 and STTS3000
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull four hwmon patches from Guenter Roeck

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (jc42) Add support for AT30TS00, TS3000GB2, TSE2002GB2, and MCP9804
  hwmon: (zl6100) Maintain delay parameter in driver instance data
  hwmon: (pmbus_core) Fix maximum number of POUT alarm attributes
  hwmon: (jc42) Add support for ST Microelectronics STTS2002 and STTS3000
2012-03-08 17:22:54 -08:00
Linus Torvalds
5d0edf2915 Device-mapper fixes for 3.3.
Eight small device-mapper bug fixes.
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Merge tag 'dm-3.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm

Pull device-mapper fixes for 3.3 from Alasdair Kergon

Eight small device-mapper bug fixes.

* tag 'dm-3.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm:
  dm raid: fix flush support
  dm raid: set MD_CHANGE_DEVS when rebuilding
  dm thin metadata: decrement counter after removing mapped block
  dm thin metadata: unlock superblock in init_pmd error path
  dm thin metadata: remove incorrect close_device on creation error paths
  dm flakey: fix crash on read when corrupt_bio_byte not set
  dm io: fix discard support
  dm ioctl: do not leak argv if target message only contains whitespace
2012-03-08 17:21:51 -08:00
Haiyang Zhang
d31b20fcc8 net/hyperv: Use the built-in macro KBUILD_MODNAME for this driver
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: Olaf Hering <olaf@aepfle.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-08 13:55:27 -08:00
Olof Johansson
c66fcfa938 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Fix module build errors with CONFIG_OMAP4_ERRATA_I688
  ARM: OMAP: id: Add missing break statement in omap3xxx_check_revision
  ARM: OMAP2+: Remove apply_uV constraints for fixed regulator
  ARM: OMAP: irqs: Fix NR_IRQS value to handle PRCM interrupts
2012-03-08 10:56:12 -08:00
Kukjin Kim
48546cc0a5 ARM: S3C2440: Fixed build error for s3c244x
Fixed following:
arch/arm/mach-s3c2440/s3c244x.c: In function 's3c244x_restart':
arch/arm/mach-s3c2440/s3c244x.c:209: error: expected declaration or statement at end of input
make[1]: *** [arch/arm/mach-s3c24xx/s3c244x.o] Error 1
make: *** [arch/arm/mach-s3c24xx] Error 2

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-03-08 08:57:29 -08:00
Adrian Knoth
8de5d6f19b ALSA: hdspm - Provide ioctl_compat
snd_hdspm uses its own ioctls to acquire config- and status information.
Expose the corresponding ioctl handler via ioctl_compat, so that 32bit
applications can use it on 64bit kernels.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-03-08 15:58:58 +01:00
Jan Beulich
6b7f000eb6 x86/amd: iommu_set_device_table() must not be __init
This function is called from enable_iommus(), which in turn is used
from amd_iommu_resume().

Cc: stable@vger.kernel.org
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-03-08 11:36:06 +01:00
Alex Deucher
38aa4a568b drm/radeon/kms: fix hdmi duallink checks
All pre-SI chips are limited to 165 Mhz for single link.
Code in question will be re-enabled when SI support is added.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=44755
https://bugzilla.kernel.org/show_bug.cgi?id=42887

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-08 09:39:54 +00:00
Marek Olšák
cf00790dea drm/radeon/kms: set SX_MISC in the r6xx blit code (v2)
Mesa may set it to 1, causing all primitives to be killed.

v2: also update the r7xx code

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-08 09:39:29 +00:00
Sebastian Siewior
4231d47e6f net/usbnet: avoid recursive locking in usbnet_stop()
|kernel BUG at kernel/rtmutex.c:724!
|[<c029599c>] (rt_spin_lock_slowlock+0x108/0x2bc) from [<c01c2330>] (defer_bh+0x1c/0xb4)
|[<c01c2330>] (defer_bh+0x1c/0xb4) from [<c01c3afc>] (rx_complete+0x14c/0x194)
|[<c01c3afc>] (rx_complete+0x14c/0x194) from [<c01cac88>] (usb_hcd_giveback_urb+0xa0/0xf0)
|[<c01cac88>] (usb_hcd_giveback_urb+0xa0/0xf0) from [<c01e1ff4>] (musb_giveback+0x34/0x40)
|[<c01e1ff4>] (musb_giveback+0x34/0x40) from [<c01e2b1c>] (musb_advance_schedule+0xb4/0x1c0)
|[<c01e2b1c>] (musb_advance_schedule+0xb4/0x1c0) from [<c01e2ca8>] (musb_cleanup_urb.isra.9+0x80/0x8c)
|[<c01e2ca8>] (musb_cleanup_urb.isra.9+0x80/0x8c) from [<c01e2ed0>] (musb_urb_dequeue+0xec/0x108)
|[<c01e2ed0>] (musb_urb_dequeue+0xec/0x108) from [<c01cbb90>] (unlink1+0xbc/0xcc)
|[<c01cbb90>] (unlink1+0xbc/0xcc) from [<c01cc2ec>] (usb_hcd_unlink_urb+0x54/0xa8)
|[<c01cc2ec>] (usb_hcd_unlink_urb+0x54/0xa8) from [<c01c2a84>] (unlink_urbs.isra.17+0x2c/0x58)
|[<c01c2a84>] (unlink_urbs.isra.17+0x2c/0x58) from [<c01c2b44>] (usbnet_terminate_urbs+0x94/0x10c)
|[<c01c2b44>] (usbnet_terminate_urbs+0x94/0x10c) from [<c01c2d68>] (usbnet_stop+0x100/0x15c)
|[<c01c2d68>] (usbnet_stop+0x100/0x15c) from [<c020f718>] (__dev_close_many+0x94/0xc8)

defer_bh() takes the lock which is hold during unlink_urbs(). The safe
walk suggest that the skb will be removed from the list and this is done
by defer_bh() so it seems to be okay to drop the lock here.

Cc: stable@kernel.org
Reported-by: Aníbal Almeida Pinto <anibal.pinto@efacec.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-08 00:49:29 -08:00
Steffen Klassert
ac3f48de09 route: Remove redirect_genid
As we invalidate the inetpeer tree along with the routing cache now,
we don't need a genid to reset the redirect handling when the routing
cache is flushed.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-08 00:30:32 -08:00
Steffen Klassert
5faa5df1fa inetpeer: Invalidate the inetpeer tree along with the routing cache
We initialize the routing metrics with the values cached on the
inetpeer in rt_init_metrics(). So if we have the metrics cached on the
inetpeer, we ignore the user configured fib_metrics.

To fix this issue, we replace the old tree with a fresh initialized
inet_peer_base. The old tree is removed later with a delayed work queue.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-08 00:30:24 -08:00
Jack Morgenstein
dcf353b170 mlx4_core: fix bug in modify_cq wrapper for resize flow.
The actual FW command is called in procedure "handle_resize".
Code incorrectly invoked the FW command again (in good flow), in
the modify_cq wrapper function.

Fix by skipping second FW invocation unconditionally for resize.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-08 00:28:01 -08:00
Dan Carpenter
7831545732 atl1c: set ATL1C_WORK_EVENT_RESET bit correctly
ATL1C_WORK_EVENT_RESET is zero so the original code here is a nop.  The
intent was to set the zero bit.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-08 00:27:45 -08:00
Paulius Zaleckas
5200959b83 bridge: fix state reporting when port is disabled
Now we have:
eth0: link *down*
br0: port 1(eth0) entered *forwarding* state

br_log_state(p) should be called *after* p->state is set
to BR_STATE_DISABLED.

Reported-by: Zilvinas Valinskas <zilvinas@wilibox.com>
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-08 00:25:25 -08:00
Paulius Zaleckas
d9e179ecec bridge: br_log_state() s/entering/entered/
When br_log_state() is reporting state it should say "entered"
istead of "entering" since state at this point is already
changed.

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-08 00:25:25 -08:00
Eric Dumazet
09c1d446fe ehea: restore multicast and rx_errors fields
Commit 239c562c94 (ehea: Add 64bit statistics) added a regression,
since we no longer report multicast & rx_errors fields, taken from
port->stats structure. These fields are updated in ehea_update_stats()
every second.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Anton Blanchard <anton@samba.org>
Cc: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Tested-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-08 00:23:04 -08:00
David S. Miller
9259c483a3 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch 2012-03-07 22:49:01 -08:00
Jesse Gross
81e5d41d7e openvswitch: Fix checksum update for actions on UDP packets.
When modifying IP addresses or ports on a UDP packet we don't
correctly follow the rules for unchecksummed packets.  This meant
that packets without a checksum can be given a incorrect new checksum
and packets with a checksum can become marked as being unchecksummed.
This fixes it to handle those requirements.

Signed-off-by: Jesse Gross <jesse@nicira.com>
2012-03-07 14:36:57 -08:00
David S. Miller
d47775c4a7 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2012-03-07 15:34:42 -05:00
Laxman Dewangan
c4632aed3e regulator: tps65910: Configure correct value for VDDCTRL vout reg
As per datasheet, the voltage output is defined as
from SEL[6:0] = 3 to 64 (dec)
Vout= (SEL[6:0] × 12.5 mV + 562.5 mV)

The list_voltage returns the vout as
    600mV +  selector * 12.5mV

and so equivalent VSEL is selector + 3.
Adding 3 on selector when configuring VSEL register for
VDDCTRL output.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-07 19:28:37 +00:00
Jonathan E Brassow
0ca93de9b7 dm raid: fix flush support
Fix dm-raid flush support.

Both md and dm have support for flush, but the dm-raid target
forgot to set the flag to indicate that flushes should be
passed on.  (Important for data integrity e.g. with writeback cache
enabled.)

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-03-07 19:09:48 +00:00
Jonathan E Brassow
3aa3b2b2b1 dm raid: set MD_CHANGE_DEVS when rebuilding
The 'rebuild' parameter is used to rebuild individual devices in an
array (e.g. resynchronize a RAID1 device or recalculate a parity device
in higher RAID).  The MD_CHANGE_DEVS flag must be set when this
parameter is given in order to write out the superblocks and make the
change take immediate effect.  The code that handles new devices in
super_load already sets MD_CHANGE_DEVS and 'FirstUse'.  (The 'FirstUse'
flag was being set as a special case for rebuilds in
super_init_validation.)

Add a condition for rebuilds in super_load to take care of both flags
without the special case in 'super_init_validation'.

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-03-07 19:09:47 +00:00
Joe Thornber
af63bcb817 dm thin metadata: decrement counter after removing mapped block
Correct the number of mapped sectors shown on a thin device's
status line by decrementing td->mapped_blocks in __remove() each time
a block is removed.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-03-07 19:09:44 +00:00
Joe Thornber
4469a5f387 dm thin metadata: unlock superblock in init_pmd error path
If dm_sm_disk_create() fails the superblock must be unlocked.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-03-07 19:09:43 +00:00
Mike Snitzer
1f3db25d8b dm thin metadata: remove incorrect close_device on creation error paths
The __open_device() error paths in __create_thin() and __create_snap()
incorrectly call __close_device() even if td was not initialized by
__open_device().  Remove this.

Also document __open_device() return values, remove a redundant
td->changed = 1 in __create_thin(), and insert an additional
safeguard against creating an already-existing device.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-03-07 19:09:41 +00:00
Mike Snitzer
1212268fd9 dm flakey: fix crash on read when corrupt_bio_byte not set
The following BUG is hit on the first read that is submitted to a dm
flakey test device while the device is "down" if the corrupt_bio_byte
feature wasn't requested when the device's table was loaded.

Example DM table that will hit this BUG:
0 2097152 flakey 8:0 2048 0 30

This bug was introduced by commit a3998799fb
(dm flakey: add corrupt_bio_byte feature) in v3.1-rc1.

BUG: unable to handle kernel paging request at ffff8801cfce3fff
IP: [<ffffffffa008c233>] corrupt_bio_data+0x6e/0xae [dm_flakey]
PGD 1606063 PUD 0
Oops: 0002 [#1] SMP
...
Call Trace:
 <IRQ>
 [<ffffffffa008c2b5>] flakey_end_io+0x42/0x48 [dm_flakey]
 [<ffffffffa00dca98>] clone_endio+0x54/0xb6 [dm_mod]
 [<ffffffff81130587>] bio_endio+0x2d/0x2f
 [<ffffffff811c819a>] req_bio_endio+0x96/0x9f
 [<ffffffff811c94b9>] blk_update_request+0x1dc/0x3a9
 [<ffffffff812f5ee2>] ? rcu_read_unlock+0x21/0x23
 [<ffffffff811c96a6>] blk_update_bidi_request+0x20/0x6e
 [<ffffffff811c9713>] blk_end_bidi_request+0x1f/0x5d
 [<ffffffff811c978d>] blk_end_request+0x10/0x12
 [<ffffffff8128f450>] scsi_io_completion+0x1e5/0x4b1
 [<ffffffff812882a9>] scsi_finish_command+0xec/0xf5
 [<ffffffff8128f830>] scsi_softirq_done+0xff/0x108
 [<ffffffff811ce284>] blk_done_softirq+0x84/0x98
 [<ffffffff81048d19>] __do_softirq+0xe3/0x1d5
 [<ffffffff8138f83f>] ? _raw_spin_lock+0x62/0x69
 [<ffffffff810997cf>] ? handle_irq_event+0x4c/0x61
 [<ffffffff8139833c>] call_softirq+0x1c/0x30
 [<ffffffff81003b37>] do_softirq+0x4b/0xa3
 [<ffffffff81048a39>] irq_exit+0x53/0xca
 [<ffffffff81398acd>] do_IRQ+0x9d/0xb4
 [<ffffffff81390333>] common_interrupt+0x73/0x73
...

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 3.1+
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-03-07 19:09:39 +00:00
Milan Broz
0c535e0d6f dm io: fix discard support
This patch fixes a crash by recognising discards in dm_io.

Currently dm_mirror can send REQ_DISCARD bios if running over a
discard-enabled device and without support in dm_io the system
crashes badly.

BUG: unable to handle kernel paging request at 00800000
IP:  __bio_add_page.part.17+0xf5/0x1e0
...
 bio_add_page+0x56/0x70
 dispatch_io+0x1cf/0x240 [dm_mod]
 ? km_get_page+0x50/0x50 [dm_mod]
 ? vm_next_page+0x20/0x20 [dm_mod]
 ? mirror_flush+0x130/0x130 [dm_mirror]
 dm_io+0xdc/0x2b0 [dm_mod]
...

Introduced in 2.6.38-rc1 by commit 5fc2ffeabb
(dm raid1: support discard).

Signed-off-by: Milan Broz <mbroz@redhat.com>
Cc: stable@kernel.org
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-03-07 19:09:37 +00:00
Jesper Juhl
902c6a96a7 dm ioctl: do not leak argv if target message only contains whitespace
If 'argc' is zero we jump to the 'out:' label, but this leaks the
(unused) memory that 'dm_split_args()' allocated for 'argv' if the
string being split consisted entirely of whitespace.  Jump to the
'out_argv:' label instead to free up that memory.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-03-07 19:09:34 +00:00
Guenter Roeck
1bd612a258 hwmon: (jc42) Add support for AT30TS00, TS3000GB2, TSE2002GB2, and MCP9804
Also update IDT datasheet locations.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org # 3.0+
Acked-by: Jean Delvare <khali@linux-fr.org>
2012-03-07 09:48:44 -08:00
Guenter Roeck
7ad6307ad6 hwmon: (zl6100) Maintain delay parameter in driver instance data
A global delay parameter has the side effect of being overwritten with 0 if a
single ZL2004 or ZL6105 is instantiated. If other chips supported by the same
driver are in the system, this will result in access errors for those chips.

To solve the problem, keep a per-instance copy of the delay parameter, and do
not change the original parameter.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org # 3.1+
Acked-by: Jean Delvare <khali@linux-fr.org>
2012-03-07 09:48:43 -08:00
Guenter Roeck
7cb3c44fb1 hwmon: (pmbus_core) Fix maximum number of POUT alarm attributes
There are up to three POUT alarm attributes, not two, since cap_alarm was added.

Reported-by: Michele Petracca <mi.petracca@gmail.com>
Cc: stable@vger.kernel.org # 3.0+ [3.0 will need backport]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2012-03-07 09:48:42 -08:00
Jean Delvare
4de86126a7 hwmon: (jc42) Add support for ST Microelectronics STTS2002 and STTS3000
These are fully compatible with Jedec JC 42.4 as far as I can see.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@vger.kernel.org # 3.0+
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2012-03-07 09:48:21 -08:00
Linus Torvalds
4f262acfde Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM updates from Russell King.

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7358/1: perf: add PMU hotplug notifier
  ARM: 7357/1: perf: fix overflow handling for xscale2 PMUs
  ARM: 7356/1: perf: check that we have an event in the PMU IRQ handlers
  ARM: 7355/1: perf: clear overflow flag when disabling counter on ARMv7 PMU
  ARM: 7354/1: perf: limit sample_period to half max_period in non-sampling mode
  ARM: ecard: ensure fake vma vm_flags is setup
  ARM: 7346/1: errata: fix PL310 erratum #753970 workaround selection
  ARM: 7345/1: errata: update workaround for A9 erratum #743622
  ARM: 7348/1: arm/spear600: fix one-shot timer
  ARM: 7339/1: amba/serial.h: Include types.h for resolving dependency of type bool
2012-03-07 08:33:03 -08:00
Linus Torvalds
d09b3c9618 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov: "Just a few driver fixups,
nothing exciting."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: wacom - fix 3rd-gen Bamboo MT when 4+ fingers are in use
  Input: twl4030-vibra - use proper guard for PM methods
  Input: evdev - fix variable initialisation
  Input: wacom - add missing LEDS_CLASS to Kconfig
  Input: ALPS - fix touchpad detection when buttons are pressed
2012-03-07 08:31:31 -08:00
Mark Salter
4cd7c0a03e C6X: fix KSTK_EIP and KSTK_ESP macros
There was a latent typo in the C6X KSTK_EIP and KSTK_ESP macros which
caused a problem with a new patch which used them. The broken definitions
were of the form:

  #define KSTK_FOO(tsk) (task_pt_regs(task)->foo)

Note the use of task vs tsk. This actually worked before because the
only place in the kernel which used these macros passed in a local
pointer named task.

Signed-off-by: Mark Salter <msalter@redhat.com>
2012-03-07 11:28:22 -05:00