1. 29 9月, 2013 9 次提交
  2. 28 9月, 2013 15 次提交
    • J
      i2c: ismt: initialize DMA buffer · bf416910
      James Ralston 提交于
      This patch adds code to initialize the DMA buffer to compensate for
      possible hardware data corruption.
      Signed-off-by: NJames Ralston <james.d.ralston@intel.com>
      [wsa: changed to use 'sizeof']
      Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
      bf416910
    • I
      perf/x86: Fix PMU detection printout when no PMU is detected · 8a3da6c7
      Ingo Molnar 提交于
      Ran into this cryptic PMU bootup log recently:
      
      [    0.124047] Performance Events:
      [    0.125000] smpboot: ...
      
      Turns out we print this if no PMU is detected. Fall back to
      the right condition so that the following is printed:
      
      [    0.122381] Performance Events: no PMU driver, software events only.
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      Link: http://lkml.kernel.org/n/tip-u2fwaUffakjp0qkpRfqljgsn@git.kernel.orgSigned-off-by: NIngo Molnar <mingo@kernel.org>
      8a3da6c7
    • H
      s390: enable ARCH_USE_CMPXCHG_LOCKREF · efc1d23b
      Heiko Carstens 提交于
      Enable ARCH_USE_CMPXCHG_LOCKREF since it shows performance improvements
      with Linus' simple stat() test case of up to 50% on a 30 cpu system.
      Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
      efc1d23b
    • H
      lockref: use arch_mutex_cpu_relax() in CMPXCHG_LOOP() · 491f6f8e
      Heiko Carstens 提交于
      Make use of arch_mutex_cpu_relax() so architectures can override the
      default cpu_relax() semantics.
      This is especially useful for s390, where cpu_relax() means that we
      yield() the current (virtual) cpu and therefore is very expensive,
      and would contradict the whole purpose of the lockless cmpxchg loop.
      Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
      491f6f8e
    • H
      mutex: replace CONFIG_HAVE_ARCH_MUTEX_CPU_RELAX with simple ifdef · 083986e8
      Heiko Carstens 提交于
      Linus suggested to replace
      
       #ifndef CONFIG_HAVE_ARCH_MUTEX_CPU_RELAX
       #define arch_mutex_cpu_relax() cpu_relax()
       #endif
      
      with just a simple
      
        #ifndef arch_mutex_cpu_relax
        # define arch_mutex_cpu_relax() cpu_relax()
        #endif
      
      to get rid of CONFIG_HAVE_CPU_RELAX_SIMPLE. So architectures can
      simply define arch_mutex_cpu_relax if they want an architecture
      specific function instead of having to add a select statement in
      their Kconfig in addition.
      Suggested-by: NLinus Torvalds <torvalds@linux-foundation.org>
      Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
      083986e8
    • L
      Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging · 6cac446b
      Linus Torvalds 提交于
      Pull hwmon fix from Guenter Roeck:
       "Fix potential crash condition in applesmc driver"
      
      * tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
        hwmon: (applesmc) Check key count before proceeding
      6cac446b
    • L
      Merge tag 'sound-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · a7301fcc
      Linus Torvalds 提交于
      Pull sound fixes from Takashi Iwai:
       "Nothing too serious here: a couple of compress-offload core fixes,
        Haswell HDMI audio fix, a fixup for new MacBook Airs and a few COEF
        setups for ALC283 mic problems"
      
      * tag 'sound-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: hda - Enable internal mic on a Thinkpad machine with ALC283
        ALSA: hda - Fix Internal Mic boost can't control with ALC283
        ALSA: hda - Add documentation for CS4208 fixups
        ALSA: hda - Add fixup for MacBook Air 6,1 and 6,2 with CS4208 codec
        ALSA : hda - not use assigned converters for all unused pins
        ALSA: compress: Make sure we trigger STOP before closing the stream.
        ALSA: compress: Fix compress device unregister.
      a7301fcc
    • L
      Merge tag 'fbdev-fixes-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux · d3aa0269
      Linus Torvalds 提交于
      Pull fbdev fixes from Tomi Valkeinen:
       "Small fbdev fixes for various fb drivers"
      
      * tag 'fbdev-fixes-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
        video: mxsfb: Add missing break
        video: of: display_timing: correct display-timings node finding
        neofb: fix error return code in neofb_probe()
        s3fb: fix error return code in s3_pci_probe()
        video: mmp: drop needless devm cleanup
        OMAPDSS: Add missing dependency on backlight for DSI-CM panel drier
        OMAPDSS: DISPC: set irq_safe for runtime PM
        OMAPDSS: Return right error during connector probe
      d3aa0269
    • L
      Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs · e1f8826f
      Linus Torvalds 提交于
      Pull reiserfs and UDF fixes from Jan Kara:
       "The contains fix of an UDF oops when mounting corrupted media and a
        fix of a race in reiserfs leading to oops"
      
      * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
        reiserfs: fix race with flush_used_journal_lists and flush_journal_list
        reiserfs: remove useless flush_old_journal_lists
        udf: Fortify LVID loading
      e1f8826f
    • E
      sysfs: Allow mounting without CONFIG_NET · 730d7d33
      Eric W. Biederman 提交于
      In kobj_ns_current_may_mount the default should be to allow the mount.
      The test is only for a single kobj_ns_type at a time, and unless there
      is a reason to prevent it the mounting sysfs should be allowed.
      Subsystems that are not registered can't have are not involved so can't
      have a reason to prevent mounting sysfs.
      
      This is a bug-fix to commit 7dc5dbc8 ("sysfs: Restrict mounting
      sysfs") that came in via the userns tree during the 3.12 merge window.
      Reported-and-tested-by: NJames Hogan <james.hogan@imgtec.com>
      Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      730d7d33
    • W
      lockref: allow relaxed cmpxchg64 variant for lockless updates · d2212b4d
      Will Deacon 提交于
      The 64-bit cmpxchg operation on the lockref is ordered by virtue of
      hazarding between the cmpxchg operation and the reference count
      manipulation. On weakly ordered memory architectures (such as ARM), it
      can be of great benefit to omit the barrier instructions where they are
      not needed.
      
      This patch moves the lockless lockref code over to a cmpxchg64_relaxed
      operation, which doesn't provide barrier semantics. If the operation
      isn't defined, we simply #define it as the usual 64-bit cmpxchg macro.
      
      Cc: Waiman Long <Waiman.Long@hp.com>
      Signed-off-by: NWill Deacon <will.deacon@arm.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      d2212b4d
    • C
      i2c: designware: 10-bit addressing mode enabling if I2C_DYNAMIC_TAR_UPDATE is set · bd63ace4
      Chew, Chiau Ee 提交于
      According to Designware I2C spec, if I2C_DYNAMIC_TAR_UPDATE is set to 1,
      the 10-bit addressing mode is controlled by IC_10BITADDR_MASTER bit of
      IC_TAR register instead of IC_CON register. The IC_10BITADDR_MASTER
      in IC_CON register becomes read-only copy. Since I2C_DYNAMIC_TAR_UPDATE
      value can't be detected from hardware register, so we will always set the
      IC_10BITADDR_MASTER bit in both IC_CON and IC_TAR register whenever 10-bit
      addresing mode is requested by user application.
      Signed-off-by: NChew, Chiau Ee <chiau.ee.chew@intel.com>
      Reviewed-by: NMika Westerberg <mika.westerberg@linux.intel.com>
      Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
      bd63ace4
    • T
      i2c: mv64xxx: Do not use writel_relaxed() · 85b3a935
      Thierry Reding 提交于
      The driver is used on PowerPC which don't provide writel_relaxed(). This
      breaks the c2k and prpmc2800 default configurations. To fix the build,
      turn the calls to writel_relaxed() into writel(). The impacts for ARM
      should be minimal.
      Signed-off-by: NThierry Reding <treding@nvidia.com>
      Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
      85b3a935
    • T
      i2c: mv64xxx: Fix some build warnings · c1a99467
      Thierry Reding 提交于
      Some functions and variables are only used if the configuration selects
      HAVE_CLK. Protect them with a corresponding #ifdef CONFIG_HAVE_CLK block
      to avoid compiler warnings.
      Signed-off-by: NThierry Reding <treding@nvidia.com>
      [wsa: added marker to #endif]
      Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
      c1a99467
    • K
      i2c: s3c2410: fix clk_disable/clk_unprepare WARNings · 15336913
      Kim Phillips 提交于
      commit d16933b3 "i2c: s3c2410: Move
      location of clk_prepare_enable() call in probe function" refactored
      clk_enable and clk_disable calls yet neglected to remove the
      clk_disable_unprepare call in the module's remove().
      
      It helps remove warnings on an arndale during unbind:
      
      echo 12c90000.i2c > /sys/bus/platform/devices/12c90000.i2c/driver/unbind
      
      ------------[ cut here ]------------
      WARNING: CPU: 0 PID: 2548 at drivers/clk/clk.c:842 clk_disable+0x18/0x24()
      Modules linked in:
      CPU: 0 PID: 2548 Comm: bash Not tainted 3.11.0-next-20130916-00003-gf4bddbc #6
      [<c0014d48>] (unwind_backtrace+0x0/0xf8) from [<c00117d0>] (show_stack+0x10/0x14)
      [<c00117d0>] (show_stack+0x10/0x14) from [<c0361be8>] (dump_stack+0x6c/0xac)
      [<c0361be8>] (dump_stack+0x6c/0xac) from [<c001d864>] (warn_slowpath_common+0x64/0x88)
      [<c001d864>] (warn_slowpath_common+0x64/0x88) from [<c001d8a4>] (warn_slowpath_null+0x1c/0x24)
      [<c001d8a4>] (warn_slowpath_null+0x1c/0x24) from [<c02c4a64>] (clk_disable+0x18/0x24)
      [<c02c4a64>] (clk_disable+0x18/0x24) from [<c028d0b0>] (s3c24xx_i2c_remove+0x28/0x70)
      [<c028d0b0>] (s3c24xx_i2c_remove+0x28/0x70) from [<c0217a10>] (platform_drv_remove+0x18/0x1c)
      [<c0217a10>] (platform_drv_remove+0x18/0x1c) from [<c0216358>] (__device_release_driver+0x58/0xb4)
      [<c0216358>] (__device_release_driver+0x58/0xb4) from [<c02163d0>] (device_release_driver+0x1c/0x28)
      [<c02163d0>] (device_release_driver+0x1c/0x28) from [<c02153c0>] (unbind_store+0x58/0x90)
      [<c02153c0>] (unbind_store+0x58/0x90) from [<c0214c90>] (drv_attr_store+0x20/0x2c)
      [<c0214c90>] (drv_attr_store+0x20/0x2c) from [<c01032c0>] (sysfs_write_file+0x168/0x198)
      [<c01032c0>] (sysfs_write_file+0x168/0x198) from [<c00ae1c0>] (vfs_write+0xb0/0x194)
      [<c00ae1c0>] (vfs_write+0xb0/0x194) from [<c00ae594>] (SyS_write+0x3c/0x70)
      [<c00ae594>] (SyS_write+0x3c/0x70) from [<c000e3e0>] (ret_fast_syscall+0x0/0x30)
      ---[ end trace 4c9f9403066f57a6 ]---
      ------------[ cut here ]------------
      WARNING: CPU: 0 PID: 2548 at drivers/clk/clk.c:751 clk_unprepare+0x14/0x1c()
      Modules linked in:
      CPU: 0 PID: 2548 Comm: bash Tainted: G        W    3.11.0-next-20130916-00003-gf4bddbc #6
      [<c0014d48>] (unwind_backtrace+0x0/0xf8) from [<c00117d0>] (show_stack+0x10/0x14)
      [<c00117d0>] (show_stack+0x10/0x14) from [<c0361be8>] (dump_stack+0x6c/0xac)
      [<c0361be8>] (dump_stack+0x6c/0xac) from [<c001d864>] (warn_slowpath_common+0x64/0x88)
      [<c001d864>] (warn_slowpath_common+0x64/0x88) from [<c001d8a4>] (warn_slowpath_null+0x1c/0x24)
      [<c001d8a4>] (warn_slowpath_null+0x1c/0x24) from [<c02c5834>] (clk_unprepare+0x14/0x1c)
      [<c02c5834>] (clk_unprepare+0x14/0x1c) from [<c028d0b8>] (s3c24xx_i2c_remove+0x30/0x70)
      [<c028d0b8>] (s3c24xx_i2c_remove+0x30/0x70) from [<c0217a10>] (platform_drv_remove+0x18/0x1c)
      [<c0217a10>] (platform_drv_remove+0x18/0x1c) from [<c0216358>] (__device_release_driver+0x58/0xb4)
      [<c0216358>] (__device_release_driver+0x58/0xb4) from [<c02163d0>] (device_release_driver+0x1c/0x28)
      [<c02163d0>] (device_release_driver+0x1c/0x28) from [<c02153c0>] (unbind_store+0x58/0x90)
      [<c02153c0>] (unbind_store+0x58/0x90) from [<c0214c90>] (drv_attr_store+0x20/0x2c)
      [<c0214c90>] (drv_attr_store+0x20/0x2c) from [<c01032c0>] (sysfs_write_file+0x168/0x198)
      [<c01032c0>] (sysfs_write_file+0x168/0x198) from [<c00ae1c0>] (vfs_write+0xb0/0x194)
      [<c00ae1c0>] (vfs_write+0xb0/0x194) from [<c00ae594>] (SyS_write+0x3c/0x70)
      [<c00ae594>] (SyS_write+0x3c/0x70) from [<c000e3e0>] (ret_fast_syscall+0x0/0x30)
      ---[ end trace 4c9f9403066f57a7 ]---
      Signed-off-by: NKim Phillips <kim.phillips@linaro.org>
      Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
      15336913
  3. 27 9月, 2013 6 次提交
  4. 26 9月, 2013 10 次提交