Skip to content
  1. Jan 01, 2014
  3. Dec 16, 2013
  5. Dec 15, 2013
    • Heiko Stübner's avatar
      Input: zforce - fix possible driver hang during suspend · 499e6127
      Heiko Stübner authored 
      

handle_level_irq masks the interrupt before handling it, and only
unmasks it after the handler is finished. So when a touch event
happens after threads are suspended, but before the system is fully asleep
the irq handler tries to wakeup the thread which will only happen on the
next resume, resulting in the wakeup event never being sent and the driver
not being able to wake the system from sleep due to the masked irq.

Therefore move the wakeup_event to a small non-threaded handler.

Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
      499e6127
  7. Dec 10, 2013
  9. Dec 07, 2013
  11. Dec 06, 2013
  13. Dec 05, 2013
    • Linus Torvalds's avatar
      Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 53c6de50
      Linus Torvalds authored 
      Pull x86 and EFI fixes from Peter Anvin:
 "Half of these are EFI-related:

  The by far biggest change is the change to hold off the deletion of a
  sysfs entry while a backend scan is in progress.  This is to avoid
  calling kmemdup() while under a spinlock.

  The other major change is for each entry in the EFI pstore backend to
  get a unique identifier, as required by the pstore filesystem proper.

  The other changes are:

  A fix to the recent consolidation and optimization of using "asm goto"
  with read-modify-write operation, which broke the bitops; specifically
  in such a way that we could end up generating invalid code.

  A build hack to make sure we compile with -mno-sse.  icc, and most
  likely future versions of gcc, can generate SSE instructions unless we
  tell it not to.

  A comment-only patch to a change the was due in part to an unpublished
  erratum; now when the erratum is published we want to add a ...
      53c6de50
    • Fenghua Yu's avatar
      x86/apic, doc: Justification for disabling IO APIC before Local APIC · 2885432a
      Fenghua Yu authored 
      Since erratum AVR31 in "Intel Atom Processor C2000 Product Family
Specification Update" is now published, I added a justification
comment for disabling IO APIC before Local APIC, as changed in commit:

522e6646

 x86/apic: Disable I/O APIC before shutdown of the local APIC

Signed-off-by: default avatarFenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1386202069-51515-1-git-send-email-fenghua.yu@intel.com


Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
      2885432a
    • Srinivas Pandruvada's avatar
      PowerCap: Fix mode for energy counter · 95677a9a
      Srinivas Pandruvada authored 
      

As per the documentation of powercap sysfs, energy_uj field is read only,
if it can't be reset. Currently it always allows write but will fail,
if there is no reset callback.
Changing mode field, to read only if there is no reset callback.

Signed-off-by: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reported-by: default avatarDirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      95677a9a
    • Dmitry Torokhov's avatar
      PNP: fix restoring devices after hibernation · 8a37ea50
      Dmitry Torokhov authored 
      On returning from hibernation 'restore' callback is called,
not 'resume'.  Fix it.

Fixes: eaf140b6

 (PNP: convert PNP driver bus legacy pm_ops to dev_pm_ops)
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: 3.12+ <stable@vger.kernel.org> # 3.12+
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      8a37ea50
    • H. Peter Anvin's avatar
      x86, bitops: Correct the assembly constraints to testing bitops · e0f6dec3
      H. Peter Anvin authored 
      In checkin:

0c44c2d0

 x86: Use asm goto to implement better modify_and_test() functions

the various functions which do modify and test were unified and
optimized using "asm goto".  However, this change missed the detail
that the bitops require an "Ir" constraint rather than an "er"
constraint ("I" = integer constant from 0-31, "e" = signed 32-bit
integer constant).  This would cause code to miscompile if these
functions were used on constant bit positions 32-255 and the build to
fail if used on constant bit positions above 255.

Add the constraints as a parameter to the GEN_BINARY_RMWcc() macro to
avoid this problem.

Reported-by: default avatarJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/529E8719.4070202@zytor.com
      e0f6dec3
    • Helge Deller's avatar
      nfs: fix do_div() warning by instead using sector_div() · 3873d064
      Helge Deller authored 
      

When compiling a 32bit kernel with CONFIG_LBDAF=n the compiler complains like
shown below.  Fix this warning by instead using sector_div() which is provided
by the kernel.h header file.

fs/nfs/blocklayout/extents.c: In function ‘normalize’:
include/asm-generic/div64.h:43:28: warning: comparison of distinct pointer types lacks a cast [enabled by default]
fs/nfs/blocklayout/extents.c:47:13: note: in expansion of macro ‘do_div’
nfs/blocklayout/extents.c:47:2: warning: right shift count >= width of type [enabled by default]
fs/nfs/blocklayout/extents.c:47:2: warning: passing argument 1 of ‘__div64_32’ from incompatible pointer type [enabled by default]
include/asm-generic/div64.h:35:17: note: expected ‘uint64_t *’ but argument is of type ‘sector_t *’
 extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);

Signed-off-by: default avatarHelge Deller <deller@gmx.de>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
      3873d064
    • Trond Myklebust's avatar
      MAINTAINERS: Update contact information for Trond Myklebust · cd7b996a
      Trond Myklebust authored 
      

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
      cd7b996a
    • Trond Myklebust's avatar
      NFSv4.1: Prevent a 3-way deadlock between layoutreturn, open and state recovery · f22e5edd
      Trond Myklebust authored 
      

Andy Adamson reports:

The state manager is recovering expired state and recovery OPENs are being
processed. If kswapd is pruning inodes at the same time, a deadlock can occur
when kswapd calls evict_inode on an NFSv4.1 inode with a layout, and the
resultant layoutreturn gets an error that the state mangager is to handle,
causing the layoutreturn to wait on the (NFS client) cl_rpcwaitq.

At the same time an open is waiting for the inode deletion to complete in
__wait_on_freeing_inode.

If the open is either the open called by the state manager, or an open from
the same open owner that is holding the NFSv4 sequence id which causes the
OPEN from the state manager to wait for the sequence id on the Seqid_waitqueue,
then the state is deadlocked with kswapd.

The fix is simply to have layoutreturn ignore all errors except NFS4ERR_DELAY.
We already know that layouts are dropped on all server reboots, and that
it has to be coded to deal with the "forgetful client model" that doesn't
send layoutreturns.

Reported-by: default avatarAndy Adamson <andros@netapp.com>
Link: http://lkml.kernel.org/r/1385402270-14284-1-git-send-email-andros@netapp.com


Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@primarydata.com>
      f22e5edd
    • Linus Torvalds's avatar
      Merge tag 'gpio-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · 8ecffd79
      Linus Torvalds authored 
      Pull GPIO fixes from Linus Walleij:
 "Here are a few more GPIO patches, we're a bit noisy for being the GPIO
  subsystem, mostly due to the new descriptor API, but all is getting
  into shape.

   - Fix compile warnings

   - Fix overly talkative diagnostic messages from usual use cases wrt
     GPIO descriptors

   - Add a documentation 00-INDEX

   - Use platform GPIOs as fallback when ACPI or device tree is used as
     the primary means to get GPIO lines

   - A bug fix for the MPC8572/MPC8536 fixing erroneous input data"

* tag 'gpio-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpiolib: change a warning to debug message when failing to get gpio
  powerpc/gpio: Fix the wrong GPIO input data on MPC8572/MPC8536
  gpiolib: use platform GPIO mappings as fallback
  Documentation: gpiolib: add 00-INDEX file
  gpiolib: fix lookup of platform-mapped GPIOs
  gpiolib: add missing declarations
      8ecffd79
    • Linus Torvalds's avatar
      Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 36059ee2
      Linus Torvalds authored 
      Pull ARM SoC fixes from Olof Johansson:
 "Another batch of fixes for ARM SoCs for 3.13.  The diffstat is large,
  mostly because of:

   - Another set of fixes to fix regressions caused by moving OMAP from
     board files to DT.  Tony thinks this was the last major set of
     fixes, with maybe just a few small patches to follow.
   - More fixes for Marvell platforms, most dealing with misdescribed
     PCIe hardware, i.e.  incorrect number of busses on some SoCs, etc.
     The line delta adds up due to various ranges moving around when
     this is fixed.

  But there's also:

   - Some smaller tweaks to defconfigs to make more boards bootable in
     my test setup for better coverage.
   - There are also a few other smaller fixes, a short series for at91,
     a couple of reverts for ux500, etc"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits)
  arm: dts: socfpga: Change some clocks of gate-clk type to perip-clk
  arm: socfpga: Enable ARM_TWD for socfpga
  ARM: multi_v7_defconfig: enable SDHCI_BCM_KONA and MMC_BLOCK_MINORS=16
  ARM: sunxi_defconfig: enable NFS, TMPFS, PRINTK_TIME and nfsroot support
  ARM: multi_v7_defconfig: enable network for BeagleBone Black
  ARM: dts: Fix the name of supplies for smsc911x shared by OMAP
  ARM: OMAP2+: Powerdomain: Fix unchecked dereference of arch_pwrdm
  ARM: dts: omap3-beagle: Add omap-twl4030 audio support
  ARM: dts: omap4-sdp: Fix pin muxing for wl12xx
  ARM: dts: omap4-panda-common: Fix pin muxing for wl12xx
  ARM: at91: fixed unresolved symbol "at91_pm_set_standby" when built without CONFIG_PM
  ARM: at91: add usart3 alias to dtsi
  ARM: at91: sama5d3: reduce TWI internal clock frequency
  mmc: omap: Fix I2C dependency and make driver usable with device tree
  mmc: omap: Fix DMA configuration to not rely on device id
  ARM: dts: omap3-beagle: Fix USB host on beagle boards (for 3.13)
  ARM: dts: omap3-igep0020: name twl4030 VPLL2 regulator as vdds_dsi
  ARM: dts: AM33XX IGEP0033: add USB support
  ARM: dts: AM33XX BASE0033: add 32KBit EEPROM support
  ARM: dts: AM33XX BASE0033: add pinmux and user led support
  ...
      36059ee2