Commit graph

495802 commits

Author SHA1 Message Date
Mark Brown
125e7f1f02 Merge remote-tracking branch 'asoc/fix/tlv320aic3x' into asoc-linus 2015-02-05 19:34:46 +00:00
Mark Brown
4b871df52e Merge remote-tracking branch 'asoc/fix/sgtl5000' into asoc-linus 2015-02-05 19:34:40 +00:00
Mark Brown
542af23808 Merge remote-tracking branch 'asoc/fix/rt5640' into asoc-linus 2015-02-05 19:34:34 +00:00
Mark Brown
57e6ef38a4 Merge remote-tracking branch 'asoc/fix/intel' into asoc-linus 2015-02-05 19:34:10 +00:00
Mark Brown
8c617791ac Merge remote-tracking branch 'asoc/fix/atmel' into asoc-linus 2015-02-05 19:33:44 +00:00
Eric Nelson
58cc9c9a17 ASoC: sgtl5000: add delay before first I2C access
To quote from section 1.3.1 of the data sheet:
	The SGTL5000 has an internal reset that is deasserted
	8 SYS_MCLK cycles after all power rails have been brought
	up. After this time, communication can start

	...
	1.0us represents 8 SYS_MCLK cycles at the minimum 8.0 MHz SYS_MCLK.

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2015-02-03 13:08:41 +00:00
Jie Yang
97fa99a3b8 MAINTAINERS: ASoC: add maintainer for Intel BDW/HSW ASoC driver
Adding myself as the Intel BDW/HSW ASoC driver maintainer.

Signed-off-by: Jie Yang <yang.jie@intel.com>
Acked-by: Liam Girdwood <lgirdwood@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-02 12:00:20 +00:00
Linus Torvalds
e36f014edf Linux 3.19-rc7 2015-02-01 20:07:21 -08:00
Linus Torvalds
fba7e99458 ARM: SoC fixes
One more week's worth of fixes. Worth pointing out here are:
 
 - A patch fixing detaching of iommu registrations when a device is removed --
   earlier the ops pointer wasn't managed properly
 - Another set of Renesas boards get the same GIC setup fixup as others have in
   previous -rcs
 - Serial port aliases fixups for sunxi. We did the same to tegra but we
   caught that in time before the merge window due to more machines being
   affected. Here it took longer for anyone to notice.
 - A couple more DT tweaks on sunxi
 - A follow-up patch for the mvebu coherency disabling in last -rc batch
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Merge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "One more week's worth of fixes.  Worth pointing out here are:

   - A patch fixing detaching of iommu registrations when a device is
     removed -- earlier the ops pointer wasn't managed properly
   - Another set of Renesas boards get the same GIC setup fixup as
     others have in previous -rcs
   - Serial port aliases fixups for sunxi.  We did the same to tegra but
     we caught that in time before the merge window due to more machines
     being affected.  Here it took longer for anyone to notice.
   - A couple more DT tweaks on sunxi
   - A follow-up patch for the mvebu coherency disabling in last -rc
     batch"

* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm: dma-mapping: Set DMA IOMMU ops in arm_iommu_attach_device()
  ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds
  ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds
  ARM: mvebu: don't set the PL310 in I/O coherency mode when I/O coherency is disabled
  ARM: sunxi: dt: Fix aliases
  ARM: dts: sun4i: Add simplefb node with de_fe0-de_be0-lcd0-hdmi pipeline
  ARM: dts: sun6i: ippo-q8h-v5: Fix serial0 alias
  ARM: dts: sunxi: Fix usb-phy support for sun4i/sun5i
2015-02-01 13:20:47 -08:00
Linus Torvalds
3441456bfa Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer updates from Dmitry Torokhov:
 "Just a few quirks for PS/2 this time"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: elantech - add more Fujtisu notebooks to force crc_enabled
  Input: i8042 - add noloop quirk for Medion Akoya E7225 (MD98857)
  Input: synaptics - adjust min/max for Lenovo ThinkPad X1 Carbon 2nd
2015-02-01 13:16:40 -08:00
Linus Torvalds
00845eb968 sched: don't cause task state changes in nested sleep debugging
Commit 8eb23b9f35 ("sched: Debug nested sleeps") added code to report
on nested sleep conditions, which we generally want to avoid because the
inner sleeping operation can re-set the thread state to TASK_RUNNING,
but that will then cause the outer sleep loop not actually sleep when it
calls schedule.

However, that's actually valid traditional behavior, with the inner
sleep being some fairly rare case (like taking a sleeping lock that
normally doesn't actually need to sleep).

And the debug code would actually change the state of the task to
TASK_RUNNING internally, which makes that kind of traditional and
working code not work at all, because now the nested sleep doesn't just
sometimes cause the outer one to not block, but will cause it to happen
every time.

In particular, it will cause the cardbus kernel daemon (pccardd) to
basically busy-loop doing scheduling, converting a laptop into a heater,
as reported by Bruno Prémont.  But there may be other legacy uses of
that nested sleep model in other drivers that are also likely to never
get converted to the new model.

This fixes both cases:

 - don't set TASK_RUNNING when the nested condition happens (note: even
   if WARN_ONCE() only _warns_ once, the return value isn't whether the
   warning happened, but whether the condition for the warning was true.
   So despite the warning only happening once, the "if (WARN_ON(..))"
   would trigger for every nested sleep.

 - in the cases where we knowingly disable the warning by using
   "sched_annotate_sleep()", don't change the task state (that is used
   for all core scheduling decisions), instead use '->task_state_change'
   that is used for the debugging decision itself.

(Credit for the second part of the fix goes to Oleg Nesterov: "Can't we
avoid this subtle change in behaviour DEBUG_ATOMIC_SLEEP adds?" with the
suggested change to use 'task_state_change' as part of the test)

Reported-and-bisected-by: Bruno Prémont <bonbons@linux-vserver.org>
Tested-by: Rafael J Wysocki <rjw@rjwysocki.net>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Cc: Ilya Dryomov <ilya.dryomov@inktank.com>,
Cc: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Hurley <peter@hurleysoftware.com>,
Cc: Davidlohr Bueso <dave@stgolabs.net>,
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-01 12:23:32 -08:00
Rainer Koenig
47c1ffb2b6 Input: elantech - add more Fujtisu notebooks to force crc_enabled
Add two more Fujitsu LIFEBOOK models that also ship with the Elantech
touchpad and don't work with crc_disabled to the quirk list.

Signed-off-by: Rainer Koenig <Rainer.Koenig@ts.fujitsu.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-01 11:51:26 -08:00
Olof Johansson
28111dda37 Third Round of Renesas ARM Based SoC Fixes for v3.19
* Instantiate GIC from C board code in legacy builds on r8a7790 and r8a73a4
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Merge tag 'renesas-soc-fixes3-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Merge "Third Round of Renesas ARM Based SoC Fixes for v3.19" from Simon Horman:

* Instantiate GIC from C board code in legacy builds on r8a7790 and r8a73a4

* tag 'renesas-soc-fixes3-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds
  ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-02-01 08:51:12 -08:00
Linus Torvalds
788807d7ca Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "i2c driver bugfixes (s3c2410, slave-eeprom, sh_mobile), size
  regression "bugfix" (i2c slave), documentation bugfix (st).

  Also, one documentation update (da9063), so some devicetrees can now
  be verified"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: sh_mobile: terminate DMA reads properly
  i2c: Only include slave support if selected
  i2c: s3c2410: fix ABBA deadlock by keeping clock prepared
  i2c: slave-eeprom: fix boundary check when using sysfs
  i2c: st: Rename clock reference to something that exists
  DT: i2c: Add devices handled by the da9063 MFD driver
2015-01-31 10:34:25 -08:00
Linus Torvalds
2141fd0181 Char/misc driver fixes for 3.19-rc7
Here are two tiny patches, one fixing up the drivers/Kconfig file, and
 one adding a MAINTAINERS entry for the UIO git tree.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are two tiny patches, one fixing up the drivers/Kconfig file, and
  one adding a MAINTAINERS entry for the UIO git tree"

* tag 'char-misc-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  drivers/Kconfig: remove duplicate entry for soc
  MAINTAINERS: add git url entry for UIO
2015-01-30 19:49:44 -08:00
Linus Torvalds
5921dfe8dc Staging tree fixes for 3.19-rc7
Here are two tiny staging tree fixes.  One for the nvec driver to
 resolve a reported problem, and one to add a MAINTAINERS entry for the
 Android drivers.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging tree fixes from Greg KH:
 "Here are two tiny staging tree fixes.  One for the nvec driver to
  resolve a reported problem, and one to add a MAINTAINERS entry for the
  Android drivers"

* tag 'staging-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  MAINTAINERS: add Android driver entries
  staging: nvec: specify a platform-device base id
2015-01-30 19:44:56 -08:00
Linus Torvalds
73dc61cb38 USB fixes for 3.19-rc7
Here are some small USB fixes and quirk additions for 3.19-rc7.
 
 All have been in linux-next for a while with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes and quirk additions for 3.19-rc7.

  All have been in linux-next for a while with no reported problems"

* tag 'usb-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: Add OTG PET device to TPL
  usb-storage/SCSI: blacklist FUA on JMicron 152d:2566 USB-SATA controller
  uas: Add no-report-opcodes quirk for Simpletech devices with id 4971:8017
  storage: Revise/fix quirk for 04E6:000F SCM USB-SCSI converter
  usb: phy: never defer probe in non-OF case
  usb: dwc2: call dwc2_is_controller_alive() under spinlock
2015-01-30 19:35:35 -08:00
Linus Torvalds
6155bc1431 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Mostly tooling fixes, but also an event groups fix, two PMU driver
  fixes and a CPU model variant addition"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Tighten (and fix) the grouping condition
  perf/x86/intel: Add model number for Airmont
  perf/rapl: Fix crash in rapl_scale()
  perf/x86/intel/uncore: Move uncore_box_init() out of driver initialization
  perf probe: Fix probing kretprobes
  perf symbols: Introduce 'for' method to iterate over the symbols with a given name
  perf probe: Do not rely on map__load() filter to find symbols
  perf symbols: Introduce method to iterate symbols ordered by name
  perf symbols: Return the first entry with a given name in find_by_name method
  perf annotate: Fix memory leaks in LOCK handling
  perf annotate: Handle ins parsing failures
  perf scripting perl: Force to use stdbool
  perf evlist: Remove extraneous 'was' on error message
2015-01-30 14:34:55 -08:00
Linus Torvalds
bc208e0ee0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fix from Chris Mason:
 "We have one more fix for btrfs in my for-linus branch - this was a bug
  in the new raid5/6 scrubbing support"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs: fix raid56 scrub failed in xfstests btrfs/072
2015-01-30 14:25:52 -08:00
Linus Torvalds
92ef9ce301 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull quota and UDF fix from Jan Kara:
 "A fix for UDF to properly free preallocated blocks and a fix for quota
  so that Q_GETQUOTA quotactl reports correct numbers for XFS filesystem
  (and similarly Q_XGETQUOTA quotactl works properly for other
  filesystems)"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  quota: Switch ->get_dqblk() and ->set_dqblk() to use bytes as space units
  udf: Release preallocation on last writeable close
2015-01-30 13:46:04 -08:00
Linus Torvalds
1f59fe7667 The ARM changes are largish, but not too scary. And a simple fix
for x86 (bug introduced in 3.19).
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "The ARM changes are largish, but not too scary.  And a simple fix for
  x86 (bug introduced in 3.19)"

(Paolo sayus these are the "Final" fixes. We'll see).

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: check LAPIC presence when building apic_map
  arm/arm64: KVM: Use kernel mapping to perform invalidation on page fault
  arm/arm64: KVM: Invalidate data cache on unmap
  arm/arm64: KVM: Use set/way op trapping to track the state of the caches
2015-01-30 10:45:24 -08:00
Linus Torvalds
f3a3404162 IOMMU Fixes for Linux v3.19-rc6
Two small fixes for the Tegra GART IOMMU driver:
 
 	* Provide a .map_sg function for iommu_ops
 	* Do not register Tegra GART driver as a workaround because of
 	  issues with it when used from DRM code
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Merge tag 'iommu-fixes-v3.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:
 "Two small fixes for the Tegra GART IOMMU driver:

   - provide a .map_sg function for iommu_ops
   - do not register Tegra GART driver as a workaround because of issues
     with it when used from DRM code"

* tag 'iommu-fixes-v3.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/tegra: gart: Provide default ->map_sg() callback
  iommu/tegra: gart: Do not register with bus
2015-01-30 10:41:26 -08:00
Linus Torvalds
c6591c8131 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull intel and dp mst drm fixes from Dave Airlie:
 "Intel had a few more fixes lined up and no point me sitting on them,
  along with a DP MST fix from Rob for a race at undock + vt switch"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm: fix fb-helper vs MST dangling connector ptrs (v2)
  drm/i915: BDW Fix Halo PCI IDs marked as ULT.
  drm/i915: Fix and clean BDW PCH identification
  drm/i915: Only fence tiled region of object.
  drm/i915: fix inconsistent brightness after resume
  drm/i915: Init PPGTT before context enable
2015-01-30 10:34:24 -08:00
Guenter Roeck
e262eb9381 arc: mm: Fix build failure
Fix misspelled define.

Fixes: 33692f2759 ("vm: add VM_FAULT_SIGSEGV handling support")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-30 10:31:14 -08:00
Wolfram Sang
32e224090f i2c: sh_mobile: terminate DMA reads properly
DMA read requests could miss proper termination, so two more bytes would
have been read via PIO overwriting the end of the buffer with wrong
data. Make DMA stop handling more readable while we are here.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-01-30 17:58:43 +01:00
Bo Shen
20cf2603b1 ASoC: atmel_ssc_dai: fix the setting for DSP mode
When SCC work in DSP A mode, the data outputs/inputs are shift out on
falling edge, the frame sync are sample on the rising edge.

Reported-by: Songjun Wu <songjun.wu@atmel.com>
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-30 14:19:41 +01:00
Filip Brozovic
9ee802ec5b ASoC: sgtl5000: Use shift mask when setting codec mode
Shift the I2S mode value by the necessary amount before writing the
registers. This makes Right Justified and PCM mode work in addition to
the default Left Justified mode.

Signed-off-by: Filip Brozovic <fbrozovic@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-30 14:18:21 +01:00
Peter Ujfalusi
0b65ba9981 ASoC: tlv320aic3x: Fix data delay configuration
Fix the issue introduced by:
3684940933 ASoC: tlv320aic3x: Add TDM support

The CTRLC register were not receiving the correct delay configuration,
which will corrupt DSP_A audio mode.

Fixes: 3684940933 (ASoC: tlv320aic3x: Add TDM support)
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2015-01-30 14:11:45 +01:00
Radim Krčmář
df04d1d191 KVM: x86: check LAPIC presence when building apic_map
We forgot to re-check LAPIC after splitting the loop in commit
173beedc16 (KVM: x86: Software disabled APIC should still deliver
NMIs, 2014-11-02).

Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Fixes: 173beedc16
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-01-30 12:28:31 +01:00
Paolo Bonzini
02512b2bd6 Second round of fixes for KVM/ARM for 3.19.
Fixes memory corruption issues on APM platforms and swapping issues on
 DMA-coherent systems.
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Merge tag 'kvm-arm-fixes-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master

Second round of fixes for KVM/ARM for 3.19.

Fixes memory corruption issues on APM platforms and swapping issues on
DMA-coherent systems.
2015-01-30 09:41:38 +01:00
Dave Airlie
a78b80f51e Merge tag 'drm-intel-fixes-2015-01-29' of git://anongit.freedesktop.org/drm-intel into drm-fixes
misc i915 fixes, mostly all stable material as well.

* tag 'drm-intel-fixes-2015-01-29' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: BDW Fix Halo PCI IDs marked as ULT.
  drm/i915: Fix and clean BDW PCH identification
  drm/i915: Only fence tiled region of object.
  drm/i915: fix inconsistent brightness after resume
  drm/i915: Init PPGTT before context enable
2015-01-30 13:32:24 +10:00
Rob Clark
2148f18fdb drm: fix fb-helper vs MST dangling connector ptrs (v2)
VT switch back/forth from console to xserver (for example) has potential
to go horribly wrong if a dynamic DP MST connector ends up in the saved
modeset that is restored when switching back to fbcon.

When removing a dynamic connector, don't forget to clean up the saved
state.

v1: original
v2: null out set->fb if no more connectors to avoid making i915 cranky

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1184968
Cc: stable@vger.kernel.org #v3.17+
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-01-30 13:04:17 +10:00
Linus Torvalds
1c999c47a9 1 stable fix for a dm-cache 3.19-rc6 regression and 1 stable fix for
dm-thin:
 
 - fix DM cache metadata open/lookup error paths to properly use ERR_PTR
   and IS_ERR (fixes: 3.19-rc6 "stable" commit 9b1cc9f251)
 
 - fix DM thin-provisioning to disallow userspace from sending messages
   to the thin-pool if the pool is in READ_ONLY or FAIL mode since no
   metadata changes are not allowed in these modes.
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Merge tag 'dm-3.19-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:
 "One stable fix for a dm-cache 3.19-rc6 regression and one stable fix
  for dm-thin:

   - fix DM cache metadata open/lookup error paths to properly use
     ERR_PTR and IS_ERR (fixes: 3.19-rc6 "stable" commit 9b1cc9f251)

   - fix DM thin-provisioning to disallow userspace from sending
     messages to the thin-pool if the pool is in READ_ONLY or FAIL mode
     since no metadata changes are allowed in these modes"

* tag 'dm-3.19-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm thin: don't allow messages to be sent to a pool target in READ_ONLY or FAIL mode
  dm cache: fix missing ERR_PTR returns and handling
2015-01-29 15:41:27 -08:00
Linus Torvalds
353a0c6fcc NFS client bugfixes for Linux 3.19
Highlights include:
 - Stable fix for a NFSv4.1 Oops on mount
 - Stable fix for an O_DIRECT deadlock condition
 - Fix an issue with submounted volumes and fake duplicate inode numbers
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Merge tag 'nfs-for-3.19-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

   - Stable fix for a NFSv4.1 Oops on mount
   - Stable fix for an O_DIRECT deadlock condition
   - Fix an issue with submounted volumes and fake duplicate inode
     numbers"

* tag 'nfs-for-3.19-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: Fix use of nfs_attr_use_mounted_on_fileid()
  NFSv4.1: Fix an Oops in nfs41_walk_client_list
  nfs: fix dio deadlock when O_DIRECT flag is flipped
2015-01-29 15:18:12 -08:00
Linus Torvalds
884e00f37d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph fixes from Sage Weil:
 "These paches from Ilya finally squash a race condition with layered
  images that he's been chasing for a while"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: drop parent_ref in rbd_dev_unprobe() unconditionally
  rbd: fix rbd_dev_parent_get() when parent_overlap == 0
2015-01-29 15:13:56 -08:00
Marc Zyngier
0d3e4d4fad arm/arm64: KVM: Use kernel mapping to perform invalidation on page fault
When handling a fault in stage-2, we need to resync I$ and D$, just
to be sure we don't leave any old cache line behind.

That's very good, except that we do so using the *user* address.
Under heavy load (swapping like crazy), we may end up in a situation
where the page gets mapped in stage-2 while being unmapped from
userspace by another CPU.

At that point, the DC/IC instructions can generate a fault, which
we handle with kvm->mmu_lock held. The box quickly deadlocks, user
is unhappy.

Instead, perform this invalidation through the kernel mapping,
which is guaranteed to be present. The box is much happier, and so
am I.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2015-01-29 23:24:57 +01:00
Marc Zyngier
363ef89f8e arm/arm64: KVM: Invalidate data cache on unmap
Let's assume a guest has created an uncached mapping, and written
to that page. Let's also assume that the host uses a cache-coherent
IO subsystem. Let's finally assume that the host is under memory
pressure and starts to swap things out.

Before this "uncached" page is evicted, we need to make sure
we invalidate potential speculated, clean cache lines that are
sitting there, or the IO subsystem is going to swap out the
cached view, loosing the data that has been written directly
into memory.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2015-01-29 23:24:56 +01:00
Marc Zyngier
3c1e716508 arm/arm64: KVM: Use set/way op trapping to track the state of the caches
Trying to emulate the behaviour of set/way cache ops is fairly
pointless, as there are too many ways we can end-up missing stuff.
Also, there is some system caches out there that simply ignore
set/way operations.

So instead of trying to implement them, let's convert it to VA ops,
and use them as a way to re-enable the trapping of VM ops. That way,
we can detect the point when the MMU/caches are turned off, and do
a full VM flush (which is what the guest was trying to do anyway).

This allows a 32bit zImage to boot on the APM thingy, and will
probably help bootloaders in general.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2015-01-29 23:24:56 +01:00
Linus Torvalds
a2ae004a98 sound fixes for 3.19-rc7
This batch ended up being larger than wished, but there is nothing to
 worry too much there.  Most of commits are for ASoC, a compress NULL
 dereference fix, a fix for probe error handling, and the rest are
 device-specific fixes.  In addition, we have a fix for a long-standing
 but of seq-dummy driver, which just cuts off the buggy part in the
 end.
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Merge tag 'sound-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This batch ended up being larger than wished, but there is nothing to
  worry too much there.

  Most of commits are for ASoC, a compress NULL dereference fix, a fix
  for probe error handling, and the rest are device-specific fixes.  In
  addition, we have a fix for a long-standing but of seq-dummy driver,
  which just cuts off the buggy part in the end"

* tag 'sound-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: seq-dummy: remove deadlock-causing events on close
  ASoC: omap-mcbsp: Correct CBM_CFS dai format configuration
  ASoC: soc-compress.c: fix NULL dereference
  ASoC: rt286: set the same format for dac and adc
  ASoC: wm8904: fix runtime warning
  ASoC: simple-card: Fix crash in asoc_simple_card_unref()
  ASoC: fsl: imx-wm8962: Set the card owner field
  ASoC: pcm512x: Fix DSP program selection
  ASoC: rt5677: Modify the behavior that updates the PLL parameter.
  ASoC: fsl_ssi: Fix irq error check
  ASoC: rockchip: i2s: applys rate symmetry for CPU DAI
  ASoC: Intel: Add NULL checks for the stream pointer
  ASoC: wm8960: Fix capture sample rate from 11250 to 11025
  ASoC: adi: Add missing return statement.
  ASoC: Intel: Don't change offset of block allocator during fixed allocate
  ASoC: ts3a227e: Check and report jack status at probe
  ASoC: fsl_esai: Fix incorrect xDC field width of xCCR registers
2015-01-29 11:48:36 -08:00
Linus Torvalds
297614f304 A late pin control fix for the v3.19 series:
The AT91 gpio controller would miss wakeup events, this
 single fix make it work properly.
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Merge tag 'pinctrl-v3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull final pin control fix from Linus Walleij:
 "A late pin control fix for the v3.19 series: The AT91 gpio controller
  would miss wakeup events, this single fix make it work properly"

[ "Final"? Yeah, I'll believe that once I've actually released 3.19 ;)   - Linus ]

* tag 'pinctrl-v3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: at91: allow to have disabled gpio bank
2015-01-29 11:43:43 -08:00
Linus Torvalds
9c145c56d0 vm: make stack guard page errors return VM_FAULT_SIGSEGV rather than SIGBUS
The stack guard page error case has long incorrectly caused a SIGBUS
rather than a SIGSEGV, but nobody actually noticed until commit
fee7e49d45 ("mm: propagate error from stack expansion even for guard
page") because that error case was never actually triggered in any
normal situations.

Now that we actually report the error, people noticed the wrong signal
that resulted.  So far, only the test suite of libsigsegv seems to have
actually cared, but there are real applications that use libsigsegv, so
let's not wait for any of those to break.

Reported-and-tested-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Jan Engelhardt <jengelh@inai.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> # "s390 still compiles and boots"
Cc: linux-arch@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-29 11:15:17 -08:00
Laurent Pinchart
eab8d6530c arm: dma-mapping: Set DMA IOMMU ops in arm_iommu_attach_device()
Commit 4bb25789ed ("arm: dma-mapping: plumb our iommu mapping ops
into arch_setup_dma_ops") moved the setting of the DMA operations from
arm_iommu_attach_device() to arch_setup_dma_ops() where the DMA
operations to be used are selected based on whether the device is
connected to an IOMMU. However, the IOMMU detection scheme requires the
IOMMU driver to be ported to the new IOMMU of_xlate API. As no driver
has been ported yet, this effectively breaks all IOMMU ARM users that
depend on the IOMMU being handled transparently by the DMA mapping API.

Fix this by restoring the setting of DMA IOMMU ops in
arm_iommu_attach_device() and splitting the rest of the function into a
new internal __arm_iommu_attach_device() function, called by
arch_setup_dma_ops().

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-29 10:56:27 -08:00
Linus Torvalds
33692f2759 vm: add VM_FAULT_SIGSEGV handling support
The core VM already knows about VM_FAULT_SIGBUS, but cannot return a
"you should SIGSEGV" error, because the SIGSEGV case was generally
handled by the caller - usually the architecture fault handler.

That results in lots of duplication - all the architecture fault
handlers end up doing very similar "look up vma, check permissions, do
retries etc" - but it generally works.  However, there are cases where
the VM actually wants to SIGSEGV, and applications _expect_ SIGSEGV.

In particular, when accessing the stack guard page, libsigsegv expects a
SIGSEGV.  And it usually got one, because the stack growth is handled by
that duplicated architecture fault handler.

However, when the generic VM layer started propagating the error return
from the stack expansion in commit fee7e49d45 ("mm: propagate error
from stack expansion even for guard page"), that now exposed the
existing VM_FAULT_SIGBUS result to user space.  And user space really
expected SIGSEGV, not SIGBUS.

To fix that case, we need to add a VM_FAULT_SIGSEGV, and teach all those
duplicate architecture fault handlers about it.  They all already have
the code to handle SIGSEGV, so it's about just tying that new return
value to the existing code, but it's all a bit annoying.

This is the mindless minimal patch to do this.  A more extensive patch
would be to try to gather up the mostly shared fault handling logic into
one generic helper routine, and long-term we really should do that
cleanup.

Just from this patch, you can generally see that most architectures just
copied (directly or indirectly) the old x86 way of doing things, but in
the meantime that original x86 model has been improved to hold the VM
semaphore for shorter times etc and to handle VM_FAULT_RETRY and other
"newer" things, so it would be a good idea to bring all those
improvements to the generic case and teach other architectures about
them too.

Reported-and-tested-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Jan Engelhardt <jengelh@inai.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> # "s390 still compiles and boots"
Cc: linux-arch@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-29 10:51:32 -08:00
Magnus Damm
77cf5166f2 ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds
As of commit 9a1091ef00 ("irqchip: gic: Support hierarchy irq
domain."), the Lager legacy board support is known to be broken.

The IRQ numbers of the GIC are now virtual, and no longer match the
hardcoded hardware IRQ numbers in the legacy platform board code.

To fix this issue specific to non-multiplatform r8a7790 and Lager:
 1) Instantiate the GIC from platform board code and also
 2) Skip over the DT arch timer as well as
 3) Force delay setup based on DT CPU frequency

With these 3 fixes in place interrupts on Lager are now unbroken.

Partially based on legacy GIC fix by Geert Uytterhoeven, thanks to
him for the initial work.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-01-29 17:52:38 +09:00
Magnus Damm
974b072f71 ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds
As of commit 9a1091ef00 ("irqchip: gic: Support hierarchy irq
domain."), the APE6EVM legacy board support is known to be broken.

The IRQ numbers of the GIC are now virtual, and no longer match the
hardcoded hardware IRQ numbers in the legacy platform board code.

To fix this issue specific to non-muliplatform r8a73a4 and APE6EVM:
 1) Instantiate the GIC from platform board code and also
 2) Skip over the DT arch timer as well as
 3) Force delay setup based on DT CPU frequency

With these 3 fixes in place interrupts on APE6EVM are now unbroken.

Partially based on legacy GIC fix by Geert Uytterhoeven, thanks to
him for the initial work.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-01-29 09:34:51 +09:00
Olof Johansson
764e2c70ef The previous fix for Armada XP, disabling I/O coherency, broke Armada
375/38x.  Only switch the PL310 to I/O coherent mode if I/O coherency
 is enabled.
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Merge tag 'mvebu-fixes-3.19-6' of git://git.infradead.org/linux-mvebu into fixes

Merge "mvebu-fixes-6" from Andrew Lunn:

The previous fix for Armada XP, disabling I/O coherency, broke Armada
375/38x.  Only switch the PL310 to I/O coherent mode if I/O coherency
is enabled.

* tag 'mvebu-fixes-3.19-6' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: don't set the PL310 in I/O coherency mode when I/O coherency is disabled

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-28 14:59:33 -08:00
Thomas Petazzoni
dcad68876c ARM: mvebu: don't set the PL310 in I/O coherency mode when I/O coherency is disabled
Since commit f2c3c67f00 (merge commit that adds commit "ARM: mvebu:
completely disable hardware I/O coherency"), we disable I/O coherency
on Armada EBU platforms.

However, we continue to initialize the coherency fabric, because this
coherency fabric is needed on Armada XP for inter-CPU
coherency. Unfortunately, due to this, we also continued to execute
the coherency fabric initialization code for Armada 375/38x, which
switched the PL310 into I/O coherent mode. This has the effect of
disabling the outer cache sync operation: this is needed when I/O
coherency is enabled to work around a PCIe/L2 deadlock. But obviously,
when I/O coherency is disabled, having the outer cache sync operation
is crucial.

Therefore, this commit fixes the armada_375_380_coherency_init() so
that the PL310 is switched to I/O coherent mode only if I/O coherency
is enabled.

Without this fix, all devices using DMA are broken on Armada 375/38x.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Cc: <stable@vger.kernel.org> # v3.8+
2015-01-28 11:23:56 -06:00
Joe Thornber
2a7eaea02b dm thin: don't allow messages to be sent to a pool target in READ_ONLY or FAIL mode
You can't modify the metadata in these modes.  It's better to fail these
messages immediately than let the block-manager deny write locks on
metadata blocks.  Otherwise these failed metadata changes will trigger
'needs_check' to get set in the metadata superblock -- requiring repair
using the thin_check utility.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2015-01-28 10:00:34 -05:00
Joe Thornber
766a78882d dm cache: fix missing ERR_PTR returns and handling
Commit 9b1cc9f251 ("dm cache: share cache-metadata object across
inactive and active DM tables") mistakenly ignored the use of ERR_PTR
returns.  Restore missing IS_ERR checks and ERR_PTR returns where
appropriate.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2015-01-28 09:59:20 -05:00
Ingo Molnar
e742f3dc08 perf/urgent fixes:
User visible:
 
 - Fix probing at function return (Namhyumg Kim)
 
 Developer stuff:
 
 - Symbol processing changes necessary for fixing support for
   kretprobes in 'perf probe' (Namhyung Kim, Arnaldo Carvalho de Melo)
 
 - Annotation memory leaks and instruction parsing fixes (Rabin Vincent)
 
 - Fix perl build on ARM64 (Wang Nam)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

" User visible fixes:

  - Fix probing at function return (Namhyumg Kim)

  Developer visible fixes:

  - Symbol processing changes necessary for fixing support for
    kretprobes in 'perf probe' (Namhyung Kim, Arnaldo Carvalho de Melo)

  - Annotation memory leaks and instruction parsing fixes (Rabin Vincent)

  - Fix perl build on ARM64 (Wang Nam)
"

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-28 15:40:30 +01:00