Commit Graph

574590 Commits

Author SHA1 Message Date
David Woodhouse
4692400827 iommu/vt-d: Clear PPR bit to ensure we get more page request interrupts
According to the VT-d specification we need to clear the PPR bit in
the Page Request Status register when handling page requests, or the
hardware won't generate any more interrupts.

This wasn't actually necessary on SKL/KBL (which may well be the
subject of a hardware erratum, although it's harmless enough). But
other implementations do appear to get it right, and we only ever get
one interrupt unless we clear the PPR bit.

Reported-by: CQ Tang <cq.tang@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@vger.kernel.org
2016-02-15 12:42:38 +00:00
Simon Horman
1926e54f11 MAINTAINERS: Update mailing list for Renesas ARM64 SoC Development
Update the mailing list used for development of support for ARM64
Renesas SoCs.

This is a follow-up for a similar change for other Renesas SoCs and
drivers uses by Renesas SoCs.  The ARM64 SoC entry was not updated in
that patch as it was not yet present in mainline.

The motivation for the mailing list update is that Renesas SoCs are now
much wider than the SH architecture and there is some desire from some
for the linux-sh list to refocus on discussion of the work on the SH
architecture.

Acked-by: Magnus Damm <damm@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-02-14 18:38:15 -08:00
Linus Torvalds
631c0e84d9 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull i915 drm fixes from Dave Airlie:
 "Jani sent a bunch of i915 display fixes as my weekend started, but
  hopefully you can fit them in"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/i915: fix error path in intel_setup_gmbus()
  drm/i915/skl: Fix typo in DPLL_CFGCR1 definition
  drm/i915/skl: Don't skip mst encoders in skl_ddi_pll_select()
  drm/i915: Pretend cursor is always on for ILK-style WM calculations (v2)
  drm/i915/dp: reduce missing TPS3 support errors to debug logging
  drm/i915/dp: abstract training pattern selection
  drm/i915/dsi: skip gpio element execution when not supported
  drm/i915/dsi: don't pass arbitrary data to sideband
  drm/i915/dsi: defend gpio table against out of bounds access
  drm/i915/bxt: Don't save/restore eDP panel power during suspend (v3)
  drm/i915: Allow i915_gem_object_get_page() on userptr as well
2016-02-14 18:34:12 -08:00
Linus Torvalds
18558cae02 Linux 4.5-rc4 2016-02-14 13:05:20 -08:00
Dave Airlie
bdbe58e6c6 Merge tag 'drm-intel-fixes-2016-02-12' of git://anongit.freedesktop.org/drm-intel into drm-fixes
i915 display fixes mostly.

* tag 'drm-intel-fixes-2016-02-12' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: fix error path in intel_setup_gmbus()
  drm/i915/skl: Fix typo in DPLL_CFGCR1 definition
  drm/i915/skl: Don't skip mst encoders in skl_ddi_pll_select()
  drm/i915: Pretend cursor is always on for ILK-style WM calculations (v2)
  drm/i915/dp: reduce missing TPS3 support errors to debug logging
  drm/i915/dp: abstract training pattern selection
  drm/i915/dsi: skip gpio element execution when not supported
  drm/i915/dsi: don't pass arbitrary data to sideband
  drm/i915/dsi: defend gpio table against out of bounds access
  drm/i915/bxt: Don't save/restore eDP panel power during suspend (v3)
  drm/i915: Allow i915_gem_object_get_page() on userptr as well
2016-02-15 06:54:50 +10:00
Linus Torvalds
58dd2b5be1 char/misc driver fixes for 4.5-rc4
Here are 3 fixes for some reported issues.  Two nvmem driver fixes, and
 one mei fix.  All have been in linux-next just fine.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are 3 fixes for some reported issues.  Two nvmem driver fixes,
  and one mei fix.  All have been in linux-next just fine"

* tag 'char-misc-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  nvmem: qfprom: Specify LE device endianness
  nvmem: core: return error for non word aligned access
  mei: validate request value in client notify request ioctl
2016-02-14 12:47:45 -08:00
Linus Torvalds
60f40585c9 driver core fix for 4.5-rc4
Here is one driver core, well klist, fix for 4.5-rc4.  It fixes a
 problem found in the scsi device list traversal that probably also could
 be triggered by other subsystems.
 
 The fix has 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 'driver-core-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fix from Greg KH:
 "Here is one driver core, well klist, fix for 4.5-rc4.

  It fixes a problem found in the scsi device list traversal that
  probably also could be triggered by other subsystems.

  The fix has been in linux-next for a while with no reported problems"

* tag 'driver-core-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  klist: fix starting point removed bug in klist iterators
2016-02-14 12:34:53 -08:00
Linus Torvalds
779ee19da7 tty/serial fixes for 4.5-rc4
Here are a number of small tty and serial driver fixes for 4.5-rc4 that
 resolve some reported issues.
 
 One of them got reverted as it wasn't correct based on testing, and all
 have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
 "Here are a number of small tty and serial driver fixes for 4.5-rc4
  that resolve some reported issues.

  One of them got reverted as it wasn't correct based on testing, and
  all have been in linux-next for a while"

* tag 'tty-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  Revert "8250: uniphier: allow modular build with 8250 console"
  pty: make sure super_block is still valid in final /dev/tty close
  pty: fix possible use after free of tty->driver_data
  tty: Add support for PCIe WCH382 2S multi-IO card
  serial/omap: mark wait_for_xmitr as __maybe_unused
  serial: omap: Prevent DoS using unprivileged ioctl(TIOCSRS485)
  8250: uniphier: allow modular build with 8250 console
  tty: Drop krefs for interrupted tty lock
2016-02-14 12:29:59 -08:00
Linus Torvalds
9db8cc1ae5 USB and PHY fixes for 4.5-rc4
Here are a number of USB and PHY driver fixes for 4.5-rc4.
 
 They are the usual gadget and xhci drivers that had reported problems,
 as well as a few small phy issues as well.  All have been in linux-next
 with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull PHY fixes from Greg KH:
 "Here are a couple of PHY driver fixes for 4.5-rc4.

  A few small phy issues.  All have been in linux-next with no reported
  issues"

* tag 'usb-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  phy: twl4030-usb: Fix unbalanced pm_runtime_enable on module reload
  phy: twl4030-usb: Relase usb phy on unload
  phy: core: fix wrong err handle for phy_power_on
  phy: Restrict phy-hi6220-usb to HiSilicon arm64
2016-02-14 12:24:28 -08:00
Linus Torvalds
102a92ce28 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling fixes from Thomas Gleixner:
 "Another round of fixes for the perf tooling side:

   - Prevent a NULL pointer dereference in tracepoint error handling

   - Fix a thread handling bug in the intel_pt error handling code

   - Search both .eh_frame and .debug_frame sections as toolchains seem
     to have random choices of storing the CFI information

   - Fix the perf state interval output values, which got broken when
     fixing the overall output"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf stat: Fix interval output values
  perf probe: Search both .eh_frame and .debug_frame sections for probe location
  perf tools: Fix thread lifetime related segfaut in intel_pt
  perf tools: tracepoint_error() can receive e=NULL, robustify it
2016-02-14 12:07:55 -08:00
Linus Torvalds
cb490d632b Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull lockdep fix from Thomas Gleixner:
 "A single fix for the stack trace caching logic in lockdep, where the
  duplicate avoidance managed to store no back trace at all"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/lockdep: Fix stack trace caching logic
2016-02-14 12:02:05 -08:00
Linus Torvalds
6a810945ed Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner:
 "A single fix preventing a 32bit overflow in timespec/val to cputime
  conversions on 32bit machines"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cputime: Prevent 32bit overflow in time[val|spec]_to_cputime()
2016-02-14 11:57:24 -08:00
Linus Torvalds
8ab54ed641 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irqchip fixes from Thomas Gleixner:
 "Another set of ARM SoC related irqchip fixes:
   - Plug a memory leak in gicv3-its
   - Limit features to the root gic interrupt controller
   - Add a missing barrier in the gic-v3 IAR access
   - Another compile test fix for sun4i"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic-v3: Make sure read from ICC_IAR1_EL1 is visible on redestributor
  irqchip/gic: Only set the EOImodeNS bit for the root controller
  irqchip/gic: Only populate set_affinity for the root controller
  irqchip/gicv3-its: Fix memory leak in its_free_tables()
  irqchip/sun4i: Fix compilation outside of arch/arm
2016-02-14 11:49:30 -08:00
Linus Torvalds
2d23e61fa2 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
 "Two small fixlets for x86:

   - Prevent a KASAN false positive in thread_saved_pc()

   - Fix a 32-bit truncation problem in the x86 numa code"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/numa: Fix 32-bit memblock range truncation bug on 32-bit NUMA kernels
  x86: Fix KASAN false positives in thread_saved_pc()
2016-02-14 10:50:26 -08:00
Linus Torvalds
ab57a6111c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
 "Here's the first round of MIPS fixes after the merge window:

   - Detect Octeon III's PCI correctly.
   - Fix return value of the MT7620 probing function.
   - Wire up the copy_file_range syscall.
   - Fix 64k page support on 32 bit kernels.
   - Fix the early Coherency Manager probe.
   - Allow only hardware-supported page sizes to be selected for R6000.
   - Fix corner cases for the RDHWR nstruction emulation on old hardware.
   - Fix FPU handling corner cases.
   - Remove stale entry for BCM33xx from the MAINTAINERS file.
   - 32 and 64 bit ELF headers are different, handle them correctly"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  mips: Differentiate between 32 and 64 bit ELF header
  MIPS: Octeon: Update OCTEON_FEATURE_PCIE for Octeon III
  MIPS: pci-mt7620: Fix return value check in mt7620_pci_probe()
  MIPS: Fix early CM probing
  MIPS: Wire up copy_file_range syscall.
  MIPS: Fix 64k page support for 32 bit kernels.
  MIPS: R6000: Don't allow 64k pages for R6000.
  MIPS: traps.c: Correct microMIPS RDHWR emulation
  MIPS: traps.c: Don't emulate RDHWR in the CpU #0 exception handler
  MAINTAINERS: Remove stale entry for BCM33xx chips
  MIPS: Fix FPU disable with preemption
  MIPS: Properly disable FPU in start_thread()
  MIPS: Fix buffer overflow in syscall_get_arguments()
2016-02-14 10:49:01 -08:00
Linus Torvalds
be3f4e0fb3 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "A couple of ARM fixes from Linus for the ICST clock generator code"

[ "Linus" here is Linus Walleij.  Name-stealer.

       Linus "there can be only one" Torvalds ]

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8519/1: ICST: try other dividends than 1
  ARM: 8517/1: ICST: avoid arithmetic overflow in icst_hz()
2016-02-14 10:46:47 -08:00
Linus Torvalds
8b9f9ebe07 Merge branch 'component' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull component helper fixes from Russell King:
 "A few fixes for problems people have encountered with the recent
  update to the component helpers"

* 'component' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  component: remove device from master match list on failed add
  component: Detach components when deleting master struct
  component: fix crash on x86_64 with hda audio drivers
2016-02-14 10:40:21 -08:00
Linus Torvalds
7686e3c16c Additional 4.5-rc3 fixes
- One fix to ipoib multicast joins
 - One fix to mlx4 error handling
 - One fix to mlx5 size computation
 - One fix to a thinko in core code
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull more rdma fixes from Doug Ledford:
 "I think we are getting pretty close to done now.  There are four
  one-off fixes in this update:

   - fix ipoib multicast joins
   - fix mlx4 error handling
   - fix mlx5 size computation
   - fix a thinko in core code"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
  IB/mlx5: Fix RC transport send queue overhead computation
  IB/ipoib: fix for rare multicast join race condition
  IB/core: Fix reading capability mask of the port info class
  net/mlx4: fix some error handling in mlx4_multi_func_init()
2016-02-13 17:35:23 -08:00
Linus Torvalds
2f2e9f2dd1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
 "This includes the long awaited series to address a set of bugs around
  active I/O remote-port LUN_RESET, as well as properly handling this
  same case with concurrent fabric driver session disconnect ->
  reconnect.

  Note this set of LUN_RESET bug-fixes has been surviving extended
  testing on both v4.5-rc1 and v3.14.y code over the last weeks, and is
  CC'ed for stable as it's something folks using multiple ESX connected
  hosts with slow backends can certainly trigger.

  The highlights also include:

   - Fix WRITE_SAME/DISCARD emulation 4k sector conversion in
     target/iblock (Mike Christie)

   - Fix TMR abort interaction and AIO type TMR response in qla2xxx
     target (Quinn Tran + Swapnil Nagle)

   - Fix >= v3.17 stale descriptor pointer regression in qla2xxx target
     (Quinn Tran)

   - Fix >= v4.5-rc1 return regression with unmap_zeros_data_store new
     configfs store handler (nab)

   - Add CPU affinity flag + convert qla2xxx to use bit (Quinn + HCH +
     Bart)"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  qla2xxx: use TARGET_SCF_USE_CPUID flag to indiate CPU Affinity
  target/transport: add flag to indicate CPU Affinity is observed
  target: Fix incorrect unmap_zeroes_data_store return
  qla2xxx: Use ATIO type to send correct tmr response
  qla2xxx: Fix stale pointer access.
  target/user: Fix cast from pointer to phys_addr_t
  target: Drop legacy se_cmd->task_stop_comp + REQUEST_STOP usage
  target: Fix race with SCF_SEND_DELAYED_TAS handling
  target: Fix remote-port TMR ABORT + se_cmd fabric stop
  target: Fix TAS handling for multi-session se_node_acls
  target: Fix LUN_RESET active TMR descriptor handling
  target: Fix LUN_RESET active I/O handling for ACK_KREF
  qla2xxx: Fix TMR ABORT interaction issue between qla2xxx and TCM
  qla2xxx: Fix warning reported by static checker
  target: Fix WRITE_SAME/DISCARD conversion to linux 512b sectors
2016-02-13 16:39:27 -08:00
Linus Torvalds
4617c2203f Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal management fixes from Eduardo Valentin:
 "Specifics in this pull request:

   - Compilation fixes on SPEAR, and U8500 thermal drivers.
   - RCAR thermal driver now recognizes OF-thermal based thermal zones.
   - Small code rework on OF-thermal.
   - These change have been CI tested using KernelCI bot [1,2].  \o/

  I am taking over on Rui's behalf while he is out.  Happy New Chinese
  Year!

  [1] - https://kernelci.org/build/evalenti/kernel/v4.5-rc3-16-ga53b8394ec3c/
  [2] - https://kernelci.org/boot/all/job/evalenti/kernel/v4.5-rc3-16-ga53b8394ec3c/"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  thermal: cpu_cooling: fix out of bounds access in time_in_idle
  thermal: allow u8500-thermal driver to be a module
  thermal: allow spear-thermal driver to be a module
  thermal: spear: use __maybe_unused for PM functions
  thermal: rcar: enable to use thermal-zone on DT
  thermal: of: use for_each_available_child_of_node for child iterator
2016-02-13 13:05:56 -08:00
Linus Torvalds
b4e4334d7b another sound fix for 4.5-rc4
This contains the last-minute fix for the double-free of usb-audio
 MIDI device at probe failure.
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Merge tag 'sound-fix-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull another sound fix from Takashi Iwai:
 "This contains a fix for the double-free of usb-audio MIDI device at
  probe failure"

* tag 'sound-fix-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb-audio: avoid freeing umidi object twice
2016-02-13 13:04:47 -08:00
Linus Torvalds
e835a65f7a ARC fixes for 4.5
- Corner case of returning to delay slot from interrupt
 - Changing default interrupt prioiry level
 - Kconfig'ize support for super pages
 - Other minor fixes
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Merge tag 'arc-4.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:
 "I've been sitting on some of these fixes for a while.

   - Corner case of returning to delay slot from interrupt
   - Changing default interrupt prioiry level
   - Kconfig'ize support for super pages
   - Other minor fixes"

* tag 'arc-4.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: mm: Introduce explicit super page size support
  ARCv2: intc: Allow interruption by lowest priority interrupt
  ARCv2: Check for LL-SC livelock only if LLSC is enabled
  ARC: shrink cpuinfo by not saving full timer BCR
  ARCv2: clocksource: Rename GRTC -> GFRC ...
  ARCv2: STAR 9000950267: Handle return from intr to Delay Slot #2
2016-02-13 08:18:21 -08:00
Andrey Konovalov
07d86ca93d ALSA: usb-audio: avoid freeing umidi object twice
The 'umidi' object will be free'd on the error path by snd_usbmidi_free()
when tearing down the rawmidi interface. So we shouldn't try to free it
in snd_usbmidi_create() after having registered the rawmidi interface.

Found by KASAN.

Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-02-13 09:30:58 +01:00
Linus Torvalds
0cbb0b9268 PCI updates for v4.5:
AER
     Flush workqueue on device remove to avoid use-after-free (Sebastian Andrzej Siewior)
 
   Broadcom iProc host bridge driver
     Allow multiple devices except on PAXC (Ray Jui)
 
   Renesas R-Car host bridge driver
     Add gen2 device tree support for r8a7793 (Simon Horman)
     Add device tree support for r8a7793 (Simon Horman)
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Merge tag 'pci-v4.5-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "These are some Renesas binding updates for PCI host controllers, a
  Broadcom fix for a regression we added in v4.5-rc1, and a fix for an
  AER use-after-free problem that can cause memory corruption.

  Summary:

  AER:
    Flush workqueue on device remove to avoid use-after-free (Sebastian Andrzej Siewior)

  Broadcom iProc host bridge driver:
    Allow multiple devices except on PAXC (Ray Jui)

  Renesas R-Car host bridge driver:
    Add gen2 device tree support for r8a7793 (Simon Horman)
    Add device tree support for r8a7793 (Simon Horman)"

* tag 'pci-v4.5-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: rcar: Add device tree support for r8a7793
  PCI: rcar: Add gen2 device tree support for r8a7793
  PCI: iproc: Allow multiple devices except on PAXC
  PCI/AER: Flush workqueue on device remove to avoid use-after-free
2016-02-12 15:31:22 -08:00
Mark Brown
4dd638f8ac Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/bcm2835aux', 'spi/fix/fsl-espi', 'spi/fix/imx', 'spi/fix/loopback' and 'spi/fix/omap2-mcspi' into spi-linus 2016-02-12 23:04:41 +00:00
Tony Lindgren
0e6f357a5d spi: omap2-mcspi: Fix PM regression with deferred probe for pm_runtime_reinit
Commit 5de85b9d57 ("PM / runtime: Re-init runtime PM states at probe
error and driver unbind") introduced pm_runtime_reinit() that is used
to reinitialize PM runtime after -EPROBE_DEFER. This allows shutting
down the device after a failed probe.

However, for drivers using pm_runtime_use_autosuspend() this can cause
a state where suspend callback is never called after -EPROBE_DEFER.
On the following device driver probe, hardware state is different from
the PM runtime state causing omap_device to produce the following
error:

omap_device_enable() called from invalid state 1

And with omap_device and omap hardware being picky for PM, this will
block any deeper idle states in hardware.

The solution is to fix the drivers to follow the PM runtime documentation:

1. For sections of code that needs the device disabled, use
   pm_runtime_put_sync_suspend() if pm_runtime_set_autosuspend() has
   been set.

2. For driver exit code, use pm_runtime_dont_use_autosuspend() before
   pm_runtime_put_sync() if pm_runtime_use_autosuspend() has been
   set.

Fixes: 5de85b9d57 ("PM / runtime: Re-init runtime PM states at probe
error and driver unbind")
Cc: linux-spi@vger.kernel.org
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Nishanth Menon <nm@ti.com>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-12 22:33:09 +00:00
Javier Martinez Canillas
43f3408261 rtc: s3c: Document required clocks in the DT binding
The S3C Real Time Clock driver requires the clock and source clock to
be defined in the device node but that requirement is not documented.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-02-12 16:16:31 -06:00
Fabio Estevam
32e593b9c7 serial: fsl-imx-uart: Fix typo in fsl,dte-mode description
We should say "The uart works in DCE mode".

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-02-12 16:16:01 -06:00
Will Deacon
4aff7b8546 dt-bindings: arm, gic-v3: require that reserved cells are always 0
The arm,gic-v3 binding was written with good intentions and doesn't
enforce interrupt-cells to be 3, therefore making it easy to extend
the irq description in future if necessary:

  > Cells 4 and beyond are reserved for future use.

Unfortunately, this sentence is immediately followed up with:

  > When the 1st cell has a value of 0 or 1, cells 4 and beyond act as
  > padding, and may be ignored. It is recommended that padding cells
  > have a value of 0.

Consequently, any extensions to the PPI or SPI interrupt specifiers must
be able to work with random crap from legacy DTs, effectively
necessitating a new interrupt type in the first cell. Sigh.

This patch fixes the text so that additional, reserved cells are
required to be zero. This looks like a reasonable thing to require and
is already satisifed by the .dts files in-tree.

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-02-12 16:15:25 -06:00
Linus Torvalds
29f1bf34ed Merge branch 'akpm'(patches from Andrew)
Merge fixes from Andrew Morton:
 "10 fixes"

The lockdep hlist conversion is in the locking tree too, waiting for the
next merge window.  Andrew thought it should go in now.  I'll take it,
since it fixes a real problem and looks trivially correct (famous last
words).

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  arch/x86/Kconfig: CONFIG_X86_UV should depend on CONFIG_EFI
  mm: fix pfn_t vs highmem
  kernel/locking/lockdep.c: convert hash tables to hlists
  mm,thp: fix spellos in describing __HAVE_ARCH_FLUSH_PMD_TLB_RANGE
  mm,thp: khugepaged: call pte flush at the time of collapse
  mm/backing-dev.c: fix error path in wb_init()
  mm, dax: check for pmd_none() after split_huge_pmd()
  vsprintf: kptr_restrict is okay in IRQ when 2
  mm: fix filemap.c kernel doc warning
  ubsan: cosmetic fix to Kconfig text
2016-02-12 13:12:27 -08:00
Leon Romanovsky
75c1657e1d IB/mlx5: Fix RC transport send queue overhead computation
Fix the RC QPs send queue overhead computation to take into account
two additional segments in the WQE which are needed for registration
operations.

The ATOMIC and UMR segments can't coexist together, so chose maximum out
of them.

The commit 9e65dc371b ("IB/mlx5: Fix RC transport send queue overhead
computation") was intended to update RC transport as commit messages
states, but added the code to UC transport.

Fixes: 9e65dc371b ("IB/mlx5: Fix RC transport send queue overhead computation")
Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-02-12 14:56:08 -05:00
Alex Estrin
08bc327629 IB/ipoib: fix for rare multicast join race condition
A narrow window for race condition still exist between
multicast join thread and *dev_flush workers.
A kernel crash caused by prolong erratic link state changes
was observed (most likely a faulty cabling):

[167275.656270] BUG: unable to handle kernel NULL pointer dereference at
0000000000000020
[167275.665973] IP: [<ffffffffa05f8f2e>] ipoib_mcast_join+0xae/0x1d0 [ib_ipoib]
[167275.674443] PGD 0
[167275.677373] Oops: 0000 [#1] SMP
...
[167275.977530] Call Trace:
[167275.982225]  [<ffffffffa05f92f0>] ? ipoib_mcast_free+0x200/0x200 [ib_ipoib]
[167275.992024]  [<ffffffffa05fa1b7>] ipoib_mcast_join_task+0x2a7/0x490
[ib_ipoib]
[167276.002149]  [<ffffffff8109d5fb>] process_one_work+0x17b/0x470
[167276.010754]  [<ffffffff8109e3cb>] worker_thread+0x11b/0x400
[167276.019088]  [<ffffffff8109e2b0>] ? rescuer_thread+0x400/0x400
[167276.027737]  [<ffffffff810a5aef>] kthread+0xcf/0xe0
Here was a hit spot:
ipoib_mcast_join() {
..............
      rec.qkey      = priv->broadcast->mcmember.qkey;
                                       ^^^^^^^
.....
 }
Proposed patch should prevent multicast join task to continue
if link state change is detected.

Signed-off-by: Alex Estrin <alex.estrin@intel.com>

Changes from v4:
- as suggested by Doug Ledford, optimized spinlock usage,
i.e. ipoib_mcast_join() is called with lock held.
Changes from v3:
- sync with priv->lock before flag check.
Chages from v2:
- Move check for OPER_UP flag state to mcast_join() to
ensure no event worker is in progress.
- minor style fixes.
Changes from v1:
- No need to lock again if error detected.
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-02-12 14:53:22 -05:00
Linus Torvalds
5952cc779e MMC core:
- Fix an sysfs ABI regression
  - Return an error in a specific error path dealing with mmc ioctls
 
 MMM host:
  - sdhci-pci|acpi: Fix card detect race for Intel BXT/APL
  - sh_mmcif: Correct TX DMA channel allocation
  - mmc_spi: Fix error handling for dma mapping errors
  - sdhci-of-at91: Fix an unbalance issue for the runtime PM usage count
  - pxamci: Fix the device-tree probe deferral path
  - pxamci: Fix read-only GPIO polarity
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Merge tag 'mmc-v4.5-rc2' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC fixes from Ulf Hansson:
 "Here are some mmc fixes intended for v4.5 rc4.

  MMC core:
   - Fix an sysfs ABI regression
   - Return an error in a specific error path dealing with mmc ioctls

  MMC host:
   - sdhci-pci|acpi: Fix card detect race for Intel BXT/APL
   - sh_mmcif: Correct TX DMA channel allocation
   - mmc_spi: Fix error handling for dma mapping errors
   - sdhci-of-at91: Fix an unbalance issue for the runtime PM usage count
   - pxamci: Fix the device-tree probe deferral path
   - pxamci: Fix read-only GPIO polarity"

* tag 'mmc-v4.5-rc2' of git://git.linaro.org/people/ulf.hansson/mmc:
  Revert "mmc: block: don't use parameter prefix if built as module"
  mmc: sdhci-acpi: Fix card detect race for Intel BXT/APL
  mmc: sdhci-pci: Fix card detect race for Intel BXT/APL
  mmc: sdhci: Allow override of get_cd() called from sdhci_request()
  mmc: sdhci: Allow override of mmc host operations
  mmc: sh_mmcif: Correct TX DMA channel allocation
  mmc: block: return error on failed mmc_blk_get()
  mmc: pxamci: fix the device-tree probe deferral path
  mmc: mmc_spi: add checks for dma mapping error
  mmc: sdhci-of-at91: fix pm runtime unbalanced issue in error path
  mmc: pxamci: fix again read-only gpio detection polarity
2016-02-12 09:48:55 -08:00
Linus Torvalds
0df34ad9b7 sound fixes for 4.5-rc4
In this rc, we've got more volume than previous rc, unsurprisingly;
 the majority of updates in ASoC are about Intel drivers, and another
 major changes are the continued plumbing of ALSA timer bugs revealed
 by syzkaller fuzzer.  Hopefully both settle down now.
 
 Other than that, HD-audio received a couple of code fixes as well as
 the usual quirks, and various small fixes are found for FireWire
 devices, ASoC codecs and drivers.
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Merge tag 'sound-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "In this rc, we've got more volume than previous rc, unsurprisingly;
  the majority of updates in ASoC are about Intel drivers, and another
  major changes are the continued plumbing of ALSA timer bugs revealed
  by syzkaller fuzzer.  Hopefully both settle down now.

  Other than that, HD-audio received a couple of code fixes as well as
  the usual quirks, and various small fixes are found for FireWire
  devices, ASoC codecs and drivers"

* tag 'sound-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (50 commits)
  ASoC: arizona: fref must be limited in pseudo-fractional mode
  ASoC: sigmadsp: Fix missleading return value
  ALSA: timer: Fix race at concurrent reads
  ALSA: firewire-digi00x: Drop bogus const type qualifier on dot_scrt()
  ALSA: hda - Fix bad dereference of jack object
  ALSA: timer: Fix race between stop and interrupt
  ALSA: timer: Fix wrong instance passed to slave callbacks
  ASoC: Intel: Add module tags for common match module
  ASoC: Intel: Load the atom DPCM driver only
  ASoC: Intel: Create independent acpi match module
  ASoC: Intel: Revert "ASoC: Intel: fix ACPI probe regression with Atom DPCM driver"
  ALSA: dummy: Implement timer backend switching more safely
  ALSA: hda - Fix speaker output from VAIO AiO machines
  Revert "ALSA: hda - Fix noise on Gigabyte Z170X mobo"
  ALSA: firewire-tascam: remove needless member for control and status message
  ALSA: firewire-tascam: remove a flag for controller
  ALSA: firewire-tascam: add support for FW-1804
  ALSA: firewire-tascam: fix NULL pointer dereference when model identification fails
  ALSA: hda - Fix static checker warning in patch_hdmi.c
  ASoC: Intel: Skylake: Remove autosuspend delay
  ...
2016-02-12 09:42:05 -08:00
Linus Torvalds
14379cdc76 fbdev fixes for v4.5
* fix omap2plus_defconfig to enable omapfb as it was in v4.4
 * ocfb: fix timings for margins
 * s6e8ax0, da8xx-fb: fix compile warnings
 * mmp: fix build failure caused by bad printk parameters
 * imxfb: fix clock issue which kept the display off
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Merge tag 'fbdev-fixes-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

Pull fbdev fixes from Tomi Valkeinen:
 - fix omap2plus_defconfig to enable omapfb as it was in v4.4
 - ocfb: fix timings for margins
 - s6e8ax0, da8xx-fb: fix compile warnings
 - mmp: fix build failure caused by bad printk parameters
 - imxfb: fix clock issue which kept the display off

* tag 'fbdev-fixes-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
  video: fbdev: imxfb: Provide a reset mechanism
  fbdev: mmp: print IRQ resource using %pR format string
  fbdev: da8xx-fb: remove incorrect type cast
  fbdev: s6e8ax0: avoid unused function warnings
  ocfb: fix tgdel and tvdel timing parameters
  ARM: omap2plus_defconfig: update display configs
2016-02-12 09:39:34 -08:00
Linus Torvalds
4c05121e25 SCSI fixes on 20160211
A set of seven fixes.  Two regressions in the new hisi_sas arm driver, a
 blacklist entry for the marvell console which was causing a reset cascade
 without it, a race fix in the WRITE_SAME/DISCARD routines, a retry fix for the
 rdac driver, without which, it would prematurely return EIO and a couple of
 fixes for the hyper-v storvsc driver.
 
 Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "A set of seven fixes:

  Two regressions in the new hisi_sas arm driver, a blacklist entry for
  the marvell console which was causing a reset cascade without it, a
  race fix in the WRITE_SAME/DISCARD routines, a retry fix for the rdac
  driver, without which, it would prematurely return EIO and a couple of
  fixes for the hyper-v storvsc driver"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  block/sd: Return -EREMOTEIO when WRITE SAME and DISCARD are disabled
  SCSI: Add Marvell Console to VPD blacklist
  scsi_dh_rdac: always retry MODE SELECT on command lock violation
  storvsc: Use the specified target ID in device lookup
  storvsc: Install the storvsc specific timeout handler for FC devices
  hisi_sas: fix v1 hw check for slot error
  hisi_sas: add dependency for HAS_IOMEM
2016-02-12 09:32:37 -08:00
Linus Torvalds
c747f97c36 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm amd fixes from Dave Airlie:
 "Been pretty quiet.

  This is an amdgpu fixes pull from AMD, a bunch of powerplay stability
  fixes, race fix, hibernate fix, and a possible circular locking fix"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (21 commits)
  drm/amdgpu: fix issue with overlapping userptrs
  drm/radeon: hold reference to fences in radeon_sa_bo_new
  drm/amdgpu: remove unnecessary forward declaration
  drm/amdgpu: hold reference to fences in amdgpu_sa_bo_new (v2)
  drm/amdgpu: fix s4 resume
  drm/amdgpu/cz: plumb pg flags through to powerplay
  drm/amdgpu/tonga: plumb pg flags through to powerplay
  drma/dmgpu: move cg and pg flags into shared headers
  drm/amdgpu: remove unused cg defines
  drm/amdgpu: add a cgs interface to fetch cg and pg flags
  drm/amd/powerplay/tonga: disable vce pg
  drm/amd/powerplay/tonga: disable uvd pg
  drm/amd/powerplay/cz: disable vce pg
  drm/amd/powerplay/cz: disable uvd pg
  drm/amdgpu: be consistent with uvd cg flags
  drm/amdgpu: clean up vce pg flags for cz/st
  drm/amdgpu: handle vce pg flags properly
  drm/amdgpu: handle uvd pg flags properly
  drm/amdgpu/dpm/ci: switch over to the common pcie caps interface
  drm/amdgpu/cik: don't mess with aspm if gpu is root bus
  ...
2016-02-12 09:27:31 -08:00
Linus Torvalds
df8c2723a1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull crypto fix from James Morris.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  EVM: Use crypto_memneq() for digest comparisons
2016-02-12 09:24:48 -08:00
Linus Torvalds
27c9d772e5 Merge branch 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
 "This has a few fixes from Filipe, along with a readdir fix from Dave
  that we've been testing for some time"

* 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs: properly set the termination value of ctx->pos in readdir
  Btrfs: fix hang on extent buffer lock caused by the inode_paths ioctl
  Btrfs: remove no longer used function extent_read_full_page_nolock()
  Btrfs: fix page reading in extent_same ioctl leading to csum errors
  Btrfs: fix invalid page accesses in extent_same (dedup) ioctl
2016-02-12 09:21:28 -08:00
Linus Torvalds
dfc852864d xfs: updates for 4.5-rc4
Contains:
 o fix for endian conversion issue in new CRC validation in
   log recovery that was discovered on a ppc64 platform.
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Merge tag 'xfs-fixes-for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs

Pull xfs fix from Dve Chinner:
 "This contains a fix for an endian conversion issue in new CRC
  validation in log recovery that was discovered on a ppc64 platform"

* tag 'xfs-fixes-for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
  xfs: fix endianness error when checking log block crc on big endian platforms
2016-02-12 09:17:03 -08:00
Hannes Reinecke
2d99b55d37 bio: return EINTR if copying to user space got interrupted
Commit 35dc248383 introduced a check for
current->mm to see if we have a user space context and only copies data
if we do. Now if an IO gets interrupted by a signal data isn't copied
into user space any more (as we don't have a user space context) but
user space isn't notified about it.

This patch modifies the behaviour to return -EINTR from bio_uncopy_user()
to notify userland that a signal has interrupted the syscall, otherwise
it could lead to a situation where the caller may get a buffer with
no data returned.

This can be reproduced by issuing SG_IO ioctl()s in one thread while
constantly sending signals to it.

Fixes: 35dc248 [SCSI] sg: Fix user memory corruption when SG_IO is interrupted by a signal
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Cc: stable@vger.kernel.org # v.3.11+
Signed-off-by: Jens Axboe <axboe@fb.com>
2016-02-12 08:17:41 -07:00
Keith Busch
f8e68a7c9a NVMe: Rate limit nvme IO warnings
We don't need to spam the kernel logs with thousands of IO cancelling
messages. We can infer all IO's are being cancelled with fewer, or
even none at all. This patch rate limits the message and uses the debug
log level as it is mainly used for testing purposes.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2016-02-12 08:10:31 -07:00
Keith Busch
ff23a2a15a NVMe: Poll device while still active during remove
A device failure or link down wouldn't have been detected during namespace
removal. This patch keeps the device in the list for polling so that the
thread may see such failure and initiate a reset. The device is removed
from the list after disable, so we can safely flush the reset work as
it can't be requeued when disable completes.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2016-02-12 08:10:16 -07:00
Keith Busch
ae1fba2001 NVMe: Requeue requests on suspended queues
It's possible a request may get to the driver after the nvme queue was
disabled. This has the request requeue if that happens.

Note the request is still "started" by the driver, but requeuing will
clear the start state for timeout handling.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2016-02-12 08:10:08 -07:00
Takashi Iwai
86c2ee1670 ASoC: Fixes for v4.5
A rather large batch of fixes here, almost all in the Intel driver.
 The changes that got merged in this merge window for Skylake were rather
 large and as well as issues that you'd expect in a large block of new
 code there were some problems created for older processors which needed
 fixing up.  Things are largely settling down now hopefully.
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Merge tag 'asoc-fix-v4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v4.5

A rather large batch of fixes here, almost all in the Intel driver.
The changes that got merged in this merge window for Skylake were rather
large and as well as issues that you'd expect in a large block of new
code there were some problems created for older processors which needed
fixing up.  Things are largely settling down now hopefully.
2016-02-12 09:48:51 +01:00
Ryan Ware
613317bd21 EVM: Use crypto_memneq() for digest comparisons
This patch fixes vulnerability CVE-2016-2085.  The problem exists
because the vm_verify_hmac() function includes a use of memcmp().
Unfortunately, this allows timing side channel attacks; specifically
a MAC forgery complexity drop from 2^128 to 2^12.  This patch changes
the memcmp() to the cryptographically safe crypto_memneq().

Reported-by: Xiaofei Rex Guo <xiaofei.rex.guo@intel.com>
Signed-off-by: Ryan Ware <ware@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2016-02-12 18:36:47 +11:00
Vineet Gupta
37eda9df5b ARC: mm: Introduce explicit super page size support
MMUv4 supports 2 concurrent page sizes: Normal and Super [4K to 16M]

So far Linux supported a single super page size for a given Normal page,
depending on the software page walking address split.
e.g. we had 11:8:13 address split for 8K page, which meant super page
was 2 ^(8+13) = 2M (given that THP size has to be PMD_SHIFT)

Now we turn this around, by allowing multiple Super Pages in Kconfig
(currently 2M and 16M only) and forcing page walker address split to
PGDIR_SHIFT and PAGE_SHIFT

For configs without Super page, things are same as before and
PGDIR_SHIFT can be hacked to get non default address split

The motivation for this change is a customer who needs 16M super page
and a 8K Normal page combo.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2016-02-12 12:10:25 +05:30
James Bottomley
2a8d9cdcfe Merge remote-tracking branch 'mkp-scsi/4.5/scsi-fixes' into fixes 2016-02-11 21:50:48 -08:00
James Bottomley
90a88d6ef8 scsi: fix soft lockup in scsi_remove_target() on module removal
This softlockup is currently happening:

[  444.088002] NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/1:1:29]
[  444.088002] Modules linked in: lpfc(-) qla2x00tgt(O) qla2xxx_scst(O) scst_vdisk(O) scsi_transport_fc libcrc32c scst(O) dlm configfs nfsd lockd grace nfs_acl auth_rpcgss sunrpc ed
d snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device dm_mod iTCO_wdt snd_hda_codec_realtek snd_hda_codec_generic gpio_ich iTCO_vendor_support ppdev snd_hda_intel snd_hda_codec snd_hda
_core snd_hwdep tg3 snd_pcm snd_timer libphy lpc_ich parport_pc ptp acpi_cpufreq snd pps_core fjes parport i2c_i801 ehci_pci tpm_tis tpm sr_mod cdrom soundcore floppy hwmon sg 8250_
fintek pcspkr i915 drm_kms_helper uhci_hcd ehci_hcd drm fb_sys_fops sysimgblt sysfillrect syscopyarea i2c_algo_bit usbcore button video usb_common fan ata_generic ata_piix libata th
ermal
[  444.088002] CPU: 1 PID: 29 Comm: kworker/1:1 Tainted: G           O    4.4.0-rc5-2.g1e923a3-default #1
[  444.088002] Hardware name: FUJITSU SIEMENS ESPRIMO E           /D2164-A1, BIOS 5.00 R1.10.2164.A1               05/08/2006
[  444.088002] Workqueue: fc_wq_4 fc_rport_final_delete [scsi_transport_fc]
[  444.088002] task: f6266ec0 ti: f6268000 task.ti: f6268000
[  444.088002] EIP: 0060:[<c07e7044>] EFLAGS: 00000286 CPU: 1
[  444.088002] EIP is at _raw_spin_unlock_irqrestore+0x14/0x20
[  444.088002] EAX: 00000286 EBX: f20d3800 ECX: 00000002 EDX: 00000286
[  444.088002] ESI: f50ba800 EDI: f2146848 EBP: f6269ec8 ESP: f6269ec8
[  444.088002]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[  444.088002] CR0: 8005003b CR2: 08f96600 CR3: 363ae000 CR4: 000006d0
[  444.088002] Stack:
[  444.088002]  f6269eec c066b0f7 00000286 f2146848 f50ba808 f50ba800 f50ba800 f2146a90
[  444.088002]  f2146848 f6269f08 f8f0a4ed f3141000 f2146800 f2146a90 f619fa00 00000040
[  444.088002]  f6269f40 c026cb25 00000001 166c6392 00000061 f6757140 f6136340 00000004
[  444.088002] Call Trace:
[  444.088002]  [<c066b0f7>] scsi_remove_target+0x167/0x1c0
[  444.088002]  [<f8f0a4ed>] fc_rport_final_delete+0x9d/0x1e0 [scsi_transport_fc]
[  444.088002]  [<c026cb25>] process_one_work+0x155/0x3e0
[  444.088002]  [<c026cde7>] worker_thread+0x37/0x490
[  444.088002]  [<c027214b>] kthread+0x9b/0xb0
[  444.088002]  [<c07e72c1>] ret_from_kernel_thread+0x21/0x40

What appears to be happening is that something has pinned the target
so it can't go into STARGET_DEL via final release and the loop in
scsi_remove_target spins endlessly until that happens.

The fix for this soft lockup is to not keep looping over a device that
we've called remove on but which hasn't gone into DEL state.  This
patch will retain a simplistic memory of the last target and not keep
looping over it.

Reported-by: Sebastian Herbszt <herbszt@gmx.de>
Tested-by: Sebastian Herbszt <herbszt@gmx.de>
Fixes: 4099819356
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2016-02-11 21:47:32 -08:00
Greg Kroah-Hartman
6b44d1e9bf phy: for 4.5-rc
*) Fix error handling code in phy core [phy_power_on()]
 *) phy-twl4030-usb fixes for unloading the module
 *) Restrict phy-hi6220-usb to HiSilicon arm64
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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Merge tag 'phy-for-4.5-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-linus

Kishon writes:

phy: for 4.5-rc

*) Fix error handling code in phy core [phy_power_on()]
*) phy-twl4030-usb fixes for unloading the module
*) Restrict phy-hi6220-usb to HiSilicon arm64

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-02-11 20:10:58 -08:00