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  1. 21 3月, 2015 1 次提交
    • R
      Merge branches 'pm-cpuidle', 'powercap', 'irq-pm' and 'acpi-resources' · 9c86286a
      由 Rafael J. Wysocki 提交于 
      * pm-cpuidle:
  cpuidle: mvebu: Update cpuidle thresholds for Armada XP SOCs
  cpuidle: mvebu: Fix the CPU PM notifier usage

* powercap:
  powercap / RAPL: handle domains with different energy units

* irq-pm:
  rtc: at91rm9200: double locking bug in at91_rtc_interrupt()

* acpi-resources:
  Revert "x86/PCI: Refine the way to release PCI IRQ resources"
      9c86286a
  3. 20 3月, 2015 1 次提交
    • R
      Revert "x86/PCI: Refine the way to release PCI IRQ resources" · 9e8ce4b9
      由 Rafael J. Wysocki 提交于 
      Commit b4b55cda (Refine the way to release PCI IRQ resources)
introduced a regression in the PCI IRQ resource management by causing
the IRQ resource of a device, established when pci_enabled_device()
is called on a fully disabled device, to be released when the driver
is unbound from the device, regardless of the enable_cnt.

This leads to the situation that an ill-behaved driver can now make a
device unusable to subsequent drivers by an imbalance in their use of
pci_enable/disable_device().  That is a serious problem for secondary
drivers like vfio-pci, which are innocent of the transgressions of
the previous driver.

Since the solution of this problem is not immediate and requires
further discussion, revert commit b4b55cda and the issue it was
supposed to address (a bug related to xen-pciback) will be taken
care of in a different way going forward.
Reported-by: NAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
      9e8ce4b9
  5. 18 3月, 2015 1 次提交
  7. 16 3月, 2015 6 次提交
    • L
      Linux 4.0-rc4 · 06e5801b
      由 Linus Torvalds 提交于
      06e5801b
    • L
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · 08352086
      由 Linus Torvalds 提交于 
      Pull drm fix from Dave Airlie:
 "An oops snuck in in an -rc3 patch, this fixes it"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  [PATCH] drm/mm: Fix support 4 GiB and larger ranges
      08352086
    • L
      Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux · 1ee89c51
      由 Linus Torvalds 提交于 
      Pull clock framework fixes from Michael Turquette:
 "The clk fixes for 4.0-rc4 comprise three themes.

  First are the usual driver fixes for new regressions since v3.19.

  Second are fixes to the common clock divider type caused by recent
  changes to how we round clock rates.  This affects many clock drivers
  that use this common code.

  Finally there are fixes for drivers that improperly compared struct
  clk pointers (drivers must not deref these pointers).  While some of
  these drivers have done this for a long time, this did not cause a
  problem until we started generating unique struct clk pointers for
  every consumer.  A new function, clk_is_match was introduced to get
  these drivers working again and they are fixed up to no longer deref
  the pointers themselves"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  ASoC: kirkwood: fix struct clk pointer comparing
  ASoC: fsl_spdif: fix struct clk pointer comparing
  ARM: imx: fix struct clk pointer comparing
  clk: introduce clk_is_match
  clk: don't export static symbol
  clk: divider: fix calculation of initial best divider when rounding to closest
  clk: divider: fix selection of divider when rounding to closest
  clk: divider: fix calculation of maximal parent rate for a given divider
  clk: divider: return real rate instead of divider value
  clk: qcom: fix platform_no_drv_owner.cocci warnings
  clk: qcom: fix platform_no_drv_owner.cocci warnings
  clk: qcom: Add PLL4 vote clock
  clk: qcom: lcc-msm8960: Fix PLL rate detection
  clk: qcom: Fix slimbus n and m val offsets
  clk: ti: Fix FAPLL parent enable bit handling
      1ee89c51
    • K
      [PATCH] drm/mm: Fix support 4 GiB and larger ranges · 046d669c
      由 Krzysztof Kolasa 提交于 
      bad argument if(tmp)... in check_free_hole

fix oops: kernel BUG at drivers/gpu/drm/drm_mm.c:305!

[airlied: excellent, this was my task for today].
Signed-off-by: NKrzysztof Kolasa <kkolasa@winsoft.pl>
Reviewed-by: NChris wilson <chris@chris-wilson.co.uk>
Signed-off-by: NDave Airlie <airlied@redhat.com>
      046d669c
    • L
      Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 6981e2af
      由 Linus Torvalds 提交于 
      Pull ARM SoC fixes from Arnd Bergmann:
 "This is a rather unpleasantly large set of bug fixes for arm-soc, Most
  of them because of cross-tree dependencies for Exynos where we should
  have figured out the right path to merge things before the merge
  window, and then the maintainer being unable to sort things out in
  time during a business trip.

  The other changes contained here are the usual collection:

  MAINTAINERS file updates
   - Gregory Clement is now a co-maintainer for the legacy Marvell EBU
     platforms
   - A MAINTAINERS entry for the Freescale Vybrid platform that was
     added last year
   - Matt Porter no longer works as a maintainer on Broadcom SoCs

  Build-time issues
   - A compile-time error for at91
   - Several minor DT fixes on at91, imx, exynos, socfpga, and omap
   - The new digicolor platform was not correctly enabled at all

  Configuration issues
   - Two defconfig fix for regressions using USB on versatile express
     and on OMAP3
   - Enabling all 8 CPUs on Allwinner/SUNxi
   - Enabling the new STiH410 platform to be usable

  Bug fixes in platform code
   - A missing barrier for socfpga
   - Fixing LPDDR1 self-refresh mode on at91
   - Fixing RTC interrupt numbers on Exynos3250
   - Fixing a cache-coherency issues in CPU power-down on Exynos5
   - Multiple small OMAP power management fixes"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (69 commits)
  MAINTAINERS: Add myself as co-maintainer to the legacy support of the mvebu SoCs
  ARM: at91: pm_slowclock: fix the compilation error
  ARM: at91/dt: fix USB high-speed clock to select UTMI
  ARM: at91/dt: fix at91 udc compatible strings
  ARM: at91/dt: declare matrix node as a syscon device
  ARM: vexpress: update CONFIG_USB_ISP1760 option
  ARM: digicolor: add the machine directory to Makefile
  ARM: STi: Add STiH410 SoC support
  MAINTAINERS: add Freescale Vybrid SoC
  MAINTAINERS: Remove self as ARM mach-bcm co-maintainer
  ARM: imx6sl-evk: set swbst_reg as vbus's parent reg
  ARM: imx6qdl-sabresd: set swbst_reg as vbus's parent reg
  ARM: at91/dt: at91sam9261: fix clocks and clock-names in udc definition
  ARM: OMAP2+: Fix wl12xx on dm3730-evm with mainline u-boot
  ARM: OMAP: enable TWL4030_USB in omap2plus_defconfig
  ARM: dts: dra7x-evm: avoid possible contention while muxing on CAN lines
  ARM: dts: dra7x-evm: Don't use dcan1_rx.gpio1_15 in DCAN pinctrl
  ARM: dts: am43xx: fix SLEWCTRL_FAST pinctrl binding
  ARM: dts: am33xx: fix SLEWCTRL_FAST pinctrl binding
  ARM: dts: OMAP5: fix polling intervals for thermal zones
  ...
      6981e2af
    • L
      Merge tag 'irqchip-fixes-4.0' of git://git.infradead.org/users/jcooper/linux · 71c87bd0
      由 Linus Torvalds 提交于 
      Pull irqchip fixes from Jason Cooper:
 "armada-370-xp:
   - Chained per-cpu interrupts

  gic{,-v3,v3-its}"
   - Various fixes for safer operation"

* tag 'irqchip-fixes-4.0' of git://git.infradead.org/users/jcooper/linux:
  irqchip: gicv3-its: Support safe initialization
  irqchip: gicv3-its: Define macros for GITS_CTLR fields
  irqchip: gicv3-its: Add limitation to page order
  irqchip: gicv3-its: Use 64KB page as default granule
  irqchip: gicv3-its: Zero itt before handling to hardware
  irqchip: gic-v3: Fix out of bounds access to cpu_logical_map
  irqchip: gic: Fix unsafe locking reported by lockdep
  irqchip: gicv3-its: Fix unsafe locking reported by lockdep
  irqchip: gicv3-its: Iterate over PCI aliases to generate ITS configuration
  irqchip: gicv3-its: Allocate enough memory for the full range of DeviceID
  irqchip: gicv3-its: Fix ITS CPU init
  irqchip: armada-370-xp: Fix chained per-cpu interrupts
      71c87bd0
  9. 15 3月, 2015 7 次提交
  11. 14 3月, 2015 15 次提交
  13. 13 3月, 2015 9 次提交
    • G
      of/platform: Fix sparc:allmodconfig build · a697c2ef
      由 Guenter Roeck 提交于 
      sparc:allmodconfig fails to build with:

drivers/built-in.o: In function `platform_bus_init':
(.init.text+0x3684): undefined reference to `of_platform_register_reconfig_notifier'

of_platform_register_reconfig_notifier is only declared if both OF_ADDRESS
and OF_DYNAMIC are configured. Yet, the include file only declares a dummy
function if OF_DYNAMIC is not configured. The sparc architecture does not
configure OF_ADDRESS, but does configure OF_DYNAMIC, causing above error.

Fixes: 801d728c ("of/reconfig: Add OF_DYNAMIC notifier for platform_bus_type")
Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
Signed-off-by: NRob Herring <robh@kernel.org>
      a697c2ef
    • T
      ALSA: hda - Don't access stereo amps for mono channel widgets · ef403edb
      由 Takashi Iwai 提交于 
      The current HDA generic parser initializes / modifies the amp values
always in stereo, but this seems causing the problem on ALC3229 codec
that has a few mono channel widgets: namely, these mono widgets react
to actions for both channels equally.

In the driver code, we do care the mono channel and create a control
only for the left channel (as defined in HD-audio spec) for such a
node.  When the control is updated, only the left channel value is
changed.  However, in the resume, the right channel value is also
restored from the initial value we took as stereo, and this overwrites
the left channel value.  This ends up being the silent output as the
right channel has been never touched and remains muted.

This patch covers the places where unconditional stereo amp accesses
are done and converts to the conditional accesses.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=94581
Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      ef403edb
    • L
      Merge branch 'akpm' (patches from Andrew) · c202baf0
      由 Linus Torvalds 提交于 
      Merge misc fixes from Andrew Morton:
 "13 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  memcg: disable hierarchy support if bound to the legacy cgroup hierarchy
  mm: reorder can_do_mlock to fix audit denial
  kasan, module: move MODULE_ALIGN macro into <linux/moduleloader.h>
  kasan, module, vmalloc: rework shadow allocation for modules
  fanotify: fix event filtering with FAN_ONDIR set
  mm/nommu.c: export symbol max_mapnr
  arch/c6x/include/asm/pgtable.h: define dummy pgprot_writecombine for !MMU
  nilfs2: fix deadlock of segment constructor during recovery
  mm: cma: fix CMA aligned offset calculation
  mm, hugetlb: close race when setting PageTail for gigantic pages
  mm, oom: do not fail __GFP_NOFAIL allocation if oom killer is disabled
  drivers/rtc/rtc-s3c.c: add .needs_src_clk to s3c6410 RTC data
  ocfs2: make append_dio an incompat feature
      c202baf0
    • V
      memcg: disable hierarchy support if bound to the legacy cgroup hierarchy · 7feee590
      由 Vladimir Davydov 提交于 
      If the memory cgroup controller is initially mounted in the scope of the
default cgroup hierarchy and then remounted to a legacy hierarchy, it will
still have hierarchy support enabled, which is incorrect.  We should
disable hierarchy support if bound to the legacy cgroup hierarchy.
Signed-off-by: NVladimir Davydov <vdavydov@parallels.com>
Signed-off-by: NJohannes Weiner <hannes@cmpxchg.org>
Acked-by: NMichal Hocko <mhocko@suse.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      7feee590
    • J
      mm: reorder can_do_mlock to fix audit denial · a5a6579d
      由 Jeff Vander Stoep 提交于 
      A userspace call to mmap(MAP_LOCKED) may result in the successful locking
of memory while also producing a confusing audit log denial.  can_do_mlock
checks capable and rlimit.  If either of these return positive
can_do_mlock returns true.  The capable check leads to an LSM hook used by
apparmour and selinux which produce the audit denial.  Reordering so
rlimit is checked first eliminates the denial on success, only recording a
denial when the lock is unsuccessful as a result of the denial.
Signed-off-by: NJeff Vander Stoep <jeffv@google.com>
Acked-by: NNick Kralevich <nnk@google.com>
Cc: Jeff Vander Stoep <jeffv@google.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Paul Cassella <cassella@cray.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      a5a6579d
    • A
      kasan, module: move MODULE_ALIGN macro into <linux/moduleloader.h> · d3733e5c
      由 Andrey Ryabinin 提交于 
      include/linux/moduleloader.h is more suitable place for this macro.
Also change alignment to PAGE_SIZE for CONFIG_KASAN=n as such
alignment already assumed in several places.
Signed-off-by: NAndrey Ryabinin <a.ryabinin@samsung.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Acked-by: NRusty Russell <rusty@rustcorp.com.au>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      d3733e5c
    • A
      kasan, module, vmalloc: rework shadow allocation for modules · a5af5aa8
      由 Andrey Ryabinin 提交于 
      Current approach in handling shadow memory for modules is broken.

Shadow memory could be freed only after memory shadow corresponds it is no
longer used.  vfree() called from interrupt context could use memory its
freeing to store 'struct llist_node' in it:

    void vfree(const void *addr)
    {
    ...
        if (unlikely(in_interrupt())) {
            struct vfree_deferred *p = this_cpu_ptr(&vfree_deferred);
            if (llist_add((struct llist_node *)addr, &p->list))
                    schedule_work(&p->wq);

Later this list node used in free_work() which actually frees memory.
Currently module_memfree() called in interrupt context will free shadow
before freeing module's memory which could provoke kernel crash.

So shadow memory should be freed after module's memory.  However, such
deallocation order could race with kasan_module_alloc() in module_alloc().

Free shadow right before releasing vm area.  At this point vfree()'d
memory is not used anymore and yet not available for other allocations.
New VM_KASAN flag used to indicate that vm area has dynamically allocated
shadow memory so kasan frees shadow only if it was previously allocated.
Signed-off-by: NAndrey Ryabinin <a.ryabinin@samsung.com>
Acked-by: NRusty Russell <rusty@rustcorp.com.au>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      a5af5aa8
    • S
      fanotify: fix event filtering with FAN_ONDIR set · b3c1030d
      由 Suzuki K. Poulose 提交于 
      With FAN_ONDIR set, the user can end up getting events, which it hasn't
marked.  This was revealed with fanotify04 testcase failure on
Linux-4.0-rc1, and is a regression from 3.19, revealed with 66ba93c0
("fanotify: don't set FAN_ONDIR implicitly on a marks ignored mask").

   # /opt/ltp/testcases/bin/fanotify04
   [ ... ]
  fanotify04    7  TPASS  :  event generated properly for type 100000
  fanotify04    8  TFAIL  :  fanotify04.c:147: got unexpected event 30
  fanotify04    9  TPASS  :  No event as expected

The testcase sets the adds the following marks : FAN_OPEN | FAN_ONDIR for
a fanotify on a dir.  Then does an open(), followed by close() of the
directory and expects to see an event FAN_OPEN(0x20).  However, the
fanotify returns (FAN_OPEN|FAN_CLOSE_NOWRITE(0x10)).  This happens due to
the flaw in the check for event_mask in fanotify_should_send_event() which
does:

	if (event_mask & marks_mask & ~marks_ignored_mask)
		return true;

where, event_mask == (FAN_ONDIR | FAN_CLOSE_NOWRITE),
       marks_mask == (FAN_ONDIR | FAN_OPEN),
       marks_ignored_mask == 0

Fix this by masking the outgoing events to the user, as we already take
care of FAN_ONDIR and FAN_EVENT_ON_CHILD.
Signed-off-by: NSuzuki K. Poulose <suzuki.poulose@arm.com>
Tested-by: NLino Sanfilippo <LinoSanfilippo@gmx.de>
Reviewed-by: NJan Kara <jack@suse.cz>
Cc: Eric Paris <eparis@redhat.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      b3c1030d
    • G
      mm/nommu.c: export symbol max_mapnr · 5b8bf307
      由 gchen gchen 提交于 
      Several modules may need max_mapnr, so export, the related error with
allmodconfig under c6x:

  MODPOST 3327 modules
  ERROR: "max_mapnr" [fs/pstore/ramoops.ko] undefined!
  ERROR: "max_mapnr" [drivers/media/v4l2-core/videobuf2-dma-contig.ko] undefined!
Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      5b8bf307