1. 22 Nov, 2015 1 commit
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 069ec229
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
       "This update contains:
      
         - MPX updates for handling 32bit processes
      
         - A fix for a long standing bug in 32bit signal frame handling
           related to FPU/XSAVE state
      
         - Handle get_xsave_addr() correctly in KVM
      
         - Fix SMAP check under paravirtualization
      
         - Add a comment to the static function trace entry to avoid further
           confusion about the difference to dynamic tracing"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/cpu: Fix SMAP check in PVOPS environments
        x86/ftrace: Add comment on static function tracing
        x86/fpu: Fix get_xsave_addr() behavior under virtualization
        x86/fpu: Fix 32-bit signal frame handling
        x86/mpx: Fix 32-bit address space calculation
        x86/mpx: Do proper get_user() when running 32-bit binaries on 64-bit kernels
      069ec229
  2. 21 Nov, 2015 24 commits
  3. 20 Nov, 2015 15 commits
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · 81051f91
      Linus Torvalds authored
      Pull i2c fixes from Wolfram Sang:
       "A few bugfixes and one PCI ID addition from I2C"
      
      * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: i801: add Intel Lewisburg device IDs
        i2c: fix wakeup irq parsing
        i2c: xiic: Prevent concurrent running of the IRQ handler and __xiic_start_xfer()
        i2c: Revert "i2c: xiic: Do not reset controller before every transfer"
        i2c: imx: fix a compiling error
      81051f91
    • Linus Torvalds's avatar
      Merge tag '4.4-fix' of git://git.lwn.net/linux · 116dfe5e
      Linus Torvalds authored
      Pull documentation fix from Jon Corbet:
       "A single fix from Mauro for a 4.4 regression that would cause the docs
        build to fail on systems with ancient Perl installations"
      
      * tag '4.4-fix' of git://git.lwn.net/linux:
        kernel-doc: Make it compatible with Perl versions below 5.12 again
      116dfe5e
    • Linus Torvalds's avatar
      Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm · 95803066
      Linus Torvalds authored
      Pull libnvdimm fixes from Dan Williams:
      
       - A collection of crash and deadlock fixes for DAX that are also tagged
         for -stable.  We will look to re-enable DAX pmd mappings in 4.5, but
         for now 4.4 and -stable should disable it by default.
      
       - A fixup to ext2 and ext4 to mirror the same warning emitted by XFS
         when mounting with "-o dax"
      
      * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
        block: protect rw_page against device teardown
        mm, dax: fix DAX deadlocks (COW fault)
        dax: disable pmd mappings
        ext2, ext4: warn when mounting with dax enabled
      95803066
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-4.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 400f3f25
      Linus Torvalds authored
      Pull more power management and ACPI updates from Rafael Wysocki:
       "These are mostly fixes and cleanups (ACPI core, PM core, cpufreq, ACPI
        EC driver, device properties) including three reverts of recent
        intel_pstate driver commits due to a regression introduced by one of
        them plus support for Atom Airmont cores in intel_pstate (which really
        boils down to adding new frequency tables for Airmont) and additional
        turbostat updates.
      
        Specifics:
      
         - Revert three recent intel_pstate driver commits one of which
           introduced a regression and the remaining two depend on the
           problematic one (Rafael Wysocki).
      
         - Fix breakage related to the recently introduced ACPI _CCA object
           support in the PCI DMA setup code (Suravee Suthikulpanit).
      
         - Fix up the recently introduced ACPI CPPC support to only use the
           hardware-reduced version of the PCCT structure as the only
           architecture to support it (ARM64) will only use hardware-reduced
           ACPI anyway (Ashwin Chaugule).
      
         - Fix a cpufreq mediatek driver build problem (Arnd Bergmann).
      
         - Fix the SMBus transaction handling implementation in the ACPI core
           to avoid re-entrant calls to wait_event_timeout() which makes
           intermittent boot stalls related to the Smart Battery Subsystem
           initialization go away and revert a workaround of another problem
           with the same underlying root cause (Chris Bainbridge).
      
         - Fix the generic wakeup interrupts framework to avoid using invalid
           IRQ numbers (Dmitry Torokhov).
      
         - Remove a redundant check from the ACPI EC driver (Markus Elfring).
      
         - Modify the intel_pstate driver so it can support more Atom flavors
           than just one (Baytrail) and add support for Atom Airmont cores
           (which require new freqnency tables) to it (Philippe Longepe).
      
         - Clean up MSR-related symbols in turbostat (Len Brown)"
      
      * tag 'pm+acpi-4.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        PCI: Fix OF logic in pci_dma_configure()
        Revert "Documentation: kernel_parameters for Intel P state driver"
        cpufreq: mediatek: fix build error
        cpufreq: intel_pstate: Add separate support for Airmont cores
        cpufreq: intel_pstate: Replace BYT with ATOM
        Revert "cpufreq: intel_pstate: Use ACPI perf configuration"
        Revert "cpufreq: intel_pstate: Avoid calculation for max/min"
        ACPI-EC: Drop unnecessary check made before calling acpi_ec_delete_query()
        Revert "ACPI / SBS: Add 5 us delay to fix SBS hangs on MacBook"
        ACPI / SMBus: Fix boot stalls / high CPU caused by reentrant code
        PM / wakeirq: check that wake IRQ is valid before accepting it
        ACPI / CPPC: Use h/w reduced version of the PCCT structure
        x86: remove unused definition of MSR_NHM_PLATFORM_INFO
        tools/power turbostat: use new name for MSR_PLATFORM_INFO
      400f3f25
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 2f255351
      Linus Torvalds authored
      Pull powerpc fixlet from Michael Ellerman:
       "Wire up sys_mlock2()"
      
      * tag 'powerpc-4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc: Wire up sys_mlock2()
      2f255351
    • Alexandra Yates's avatar
      i2c: i801: add Intel Lewisburg device IDs · cdc5a311
      Alexandra Yates authored
      
      
      Adding Intel codename Lewisburg platform device IDs for SMBus.
      Signed-off-by: default avatarAlexandra Yates <alexandra.yates@linux.intel.com>
      Reviewed-by: default avatarJean Delvare <jdelvare@suse.de>
      Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
      cdc5a311
    • Grygorii Strashko's avatar
      i2c: fix wakeup irq parsing · c18fba23
      Grygorii Strashko authored
      This patch fixes obvious copy-past error in wake up irq parsing
      code which leads to the fact that dev_pm_set_wake_irq() will
      be called with wrong IRQ number when "wakeup" IRQ is not
      defined in DT.
      
      Fixes: 3fffd128
      
       ("i2c: allow specifying separate wakeup interrupt in device tree")
      Signed-off-by: default avatarGrygorii Strashko <grygorii.strashko@ti.com>
      Acked-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
      Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
      Cc: <stable@vger.kernel.org> # v4.3
      c18fba23
    • Lars-Peter Clausen's avatar
      i2c: xiic: Prevent concurrent running of the IRQ handler and __xiic_start_xfer() · d0fe5258
      Lars-Peter Clausen authored
      Prior to commit e6c9a037 ("i2c: xiic: Remove the disabling of
      interrupts") IRQs where disabled when the initial __xiic_start_xfer() was
      called. After the commit the interrupt is enabled while the function is
      running, this means it is possible for the interrupt to be triggered while
      the function is still running. When this happens the internal data
      structures get corrupted and undefined behavior can occur like the
      following crash:
      
      	Internal error: Oops: 17 [#1] PREEMPT SMP ARM
      	Modules linked in:
      	CPU: 0 PID: 2040 Comm: i2cdetect Not tainted 4.0.0-02856-g047a308 #10956
      	Hardware name: Xilinx Zynq Platform
      	task: ee0c9500 ti: e99a2000 task.ti: e99a2000
      	PC is at __xiic_start_xfer+0x6c4/0x7c8
      	LR is at __xiic_start_xfer+0x690/0x7c8
      	pc : [<c02bbffc>]    lr : [<c02bbfc8>]    psr: 800f0013
      	sp : e99a3da8  ip : 00000000  fp : 00000000
      	r10: 00000001  r9 : 600f0013  r8 : f0180000
      	r7 : f0180000  r6 : c064e444  r5 : 00000017  r4 : ee031010
      	r3 : 00000000  r2 : 00000000  r1 : 600f0013  r0 : 0000000f
      	Flags: Nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
      	Control: 18c5387d  Table: 29a5404a  DAC: 00000015
      	Process i2cdetect (pid: 2040, stack limit = 0xe99a2210)
      	Stack: (0xe99a3da8 to 0xe99a4000)
      	3da0:                   ee031010 00000000 00000001 ee031020 ee031224 c02bc5ec
      	3dc0: ee34c604 00000000 ee0c9500 e99a3dcc e99a3dd0 e99a3dd0 e99a3dd8 c069f0e8
      	3de0: 00000000 ee031020 c064e100 ffff90bb e99a3e48 c02b6590 ee031020 00000001
      	3e00: e99a3e48 ee031020 00000000 e99a3e63 00000001 c02b6ec4 00000000 00000000
      	3e20: 00000000 c02b7320 e99a3ef0 00000000 00000000 e99e3df0 00000000 00000000
      	3e40: 00000103 2814575f 0000003e c00a0000 e99a3e85 0001003e ee0c0000 e99a3e63
      	3e60: eefd3578 c064e61c ee0c9500 c0041e04 0000056c e9a56db8 00006e5a b6f5c000
      	3e80: ee0c9548 eefd0040 00000001 eefd3540 ee0c9500 eefd39a0 c064b540 ee0c9500
      	3ea0: 00000000 ee92b000 00000000 bef4862c ee34c600 e99ecdc0 00000720 00000003
      	3ec0: e99a2000 00000000 00000000 c02b8b30 00000000 00000000 00000000 e99a3f24
      	3ee0: b6e80000 00000000 00000000 c04257e8 00000000 e99a3f24 c02b8f08 00000703
      	3f00: 00000003 c02116bc ee935300 00000000 bef4862c ee34c600 e99ecdc0 c02b91f0
      	3f20: e99ecdc0 00000720 bef4862c eeb725f8 e99ecdc0 c00c9e2c 00000003 00000003
      	3f40: ee248dc0 00000000 ee248dc8 00000002 eeb7c1a8 00000000 00000000 c00bb360
      	3f60: 00000000 00000000 00000003 ee248dc0 bef4862c e99ecdc0 e99ecdc0 00000720
      	3f80: 00000003 e99a2000 00000000 c00c9f68 00000000 00000000 b6f22000 00000036
      	3fa0: c000dfa4 c000de20 00000000 00000000 00000003 00000720 bef4862c bef4862c
      	3fc0: 00000000 00000000 b6f22000 00000036 00000000 00000000 b6f60000 00000000
      	3fe0: 00013040 bef48614 00008cab b6ecdbe6 400f0030 00000003 2f7fd821 2f7fdc21
      	[<c02bbffc>] (__xiic_start_xfer) from [<c02bc5ec>] (xiic_xfer+0x94/0x168)
      	[<c02bc5ec>] (xiic_xfer) from [<c02b6590>] (__i2c_transfer+0x4c/0x7c)
      	[<c02b6590>] (__i2c_transfer) from [<c02b6ec4>] (i2c_transfer+0x9c/0xc4)
      	[<c02b6ec4>] (i2c_transfer) from [<c02b7320>] (i2c_smbus_xfer+0x3a0/0x4ec)
      	[<c02b7320>] (i2c_smbus_xfer) from [<c02b8b30>] (i2cdev_ioctl_smbus+0xb0/0x214)
      	[<c02b8b30>] (i2cdev_ioctl_smbus) from [<c02b91f0>] (i2cdev_ioctl+0xa0/0x1d4)
      	[<c02b91f0>] (i2cdev_ioctl) from [<c00c9e2c>] (do_vfs_ioctl+0x4b0/0x5b8)
      	[<c00c9e2c>] (do_vfs_ioctl) from [<c00c9f68>] (SyS_ioctl+0x34/0x5c)
      	[<c00c9f68>] (SyS_ioctl) from [<c000de20>] (ret_fast_syscall+0x0/0x34)
      	Code: e283300c e5843210 eafffe64 e5943210 (e1d320b4)
      
      The issue can easily be reproduced by performing I2C access under high
      system load or IO load.
      
      To fix the issue protect the invocation to __xiic_start_xfer() form
      xiic_start_xfer() with the same lock that is used to protect the interrupt
      handler.
      
      Fixes: e6c9a037
      
       ("i2c: xiic: Remove the disabling of interrupts")
      Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
      Reviewed-by: default avatarShubhrajyoti Datta <shubhraj@xilinx.com>
      Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
      d0fe5258
    • Lars-Peter Clausen's avatar
      i2c: Revert "i2c: xiic: Do not reset controller before every transfer" · 9656eeeb
      Lars-Peter Clausen authored
      Commit d701667b ("i2c: xiic: Do not reset controller before every
      transfer") removed the reinitialization of the controller before the start
      of each transfer. Apparently this change is not safe to make and the commit
      results in random I2C bus failures.
      
      An easy way to trigger the issue is to run i2cdetect.
      
      Without the patch applied:
           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
      	 00:          -- -- -- -- -- -- -- -- -- -- -- -- --
      	 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      	 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      	 30: -- -- -- -- -- -- -- -- UU UU -- UU 3c -- -- UU
      	 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      	 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      	 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      	 70: -- -- -- -- -- -- -- --
      
      With the patch applied every other or so invocation:
           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
      	 00:          03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f
      	 10: 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
      	 20: 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f
      	 30: -- -- -- -- -- -- -- -- UU UU -- UU 3c -- -- UU
      	 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      	 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      	 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      	 70: -- -- -- -- -- -- -- --
      
      So revert the commit for now.
      
      Fixes: d701667b
      
       ("i2c: xiic: Do not reset controller before every transfer")
      Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
      Acked-by: default avatarShubhrajyoti Datta <shubhraj@xilinx.com>
      Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
      9656eeeb
    • Hou Zhiqiang's avatar
      i2c: imx: fix a compiling error · 8bb6fd58
      Hou Zhiqiang authored
      
      
      drivers/i2c/busses/i2c-imx.c:978:2: error: implicit declaration of
      function ‘pinctrl_select_state’ [-Werror=implicit-function-declaration]
        pinctrl_select_state(i2c_imx->pinctrl, i2c_imx->pinctrl_pins_gpio);
        ^
      Signed-off-by: default avatarHou Zhiqiang <Zhiqiang.Hou@freescale.com>
      Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
      8bb6fd58
    • Linus Torvalds's avatar
      Merge tag 'dmaengine-fix-4.4-rc2' of git://git.infradead.org/users/vkoul/slave-dma · 86eaf54d
      Linus Torvalds authored
      Pull dmaengine fixes from Vinod Koul:
       "This has odd fixes spreadout drivers, not major here
      
         - usbdmac fixes for pm
         - edma build and logic fixes
         - build warn fixes for few drivers"
      
      * tag 'dmaengine-fix-4.4-rc2' of git://git.infradead.org/users/vkoul/slave-dma:
        dmaengine: at_hdmac: use %pad format string for dma_addr_t
        dmaengine: at_xdmac: use %pad format string for dma_addr_t
        dmaengine: imx-sdma: remove __init annotation on sdma_event_remap
        dmaengine: edma: predecence bug in GET_NUM_QDMACH()
        dmaengine: edma: fix build without CONFIG_OF
        dmaengine: of_dma: Correct return code for of_dma_request_slave_channel in case !CONFIG_OF
        dmaengine: sh: usb-dmac: Fix pm_runtime_{enable,disable}() imbalance
        dmaengine: sh: usb-dmac: Fix crash on runtime suspend
      86eaf54d
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · c69bde78
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "A varied bunch of fixes, the radeon pull is probably a bit larger than
        I'd like, but it contains 2 weeks of stuff, and the Fiji fixes are a
        bit large, but they are Fiji specific.
      
        Otherwise:
      
         - mgag200: One cursor regression oops fix.
         - vc4: A few small fixes and cleanups.
         - core: Atomic fixes and Atomic helper fixes
         - i915: Revert for the backlight regression along with a bunch of
           fixes"
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (58 commits)
        drm/atomic-helper: Check encoder/crtc constraints
        Revert "drm/i915: skip modeset if compatible for everyone."
        drm/mgag200: fix kernel hang in cursor code.
        drm/amdgpu: reserve/unreserve objects out of map/unmap operations
        drm/amdgpu: move bo_reserve out of amdgpu_vm_clear_bo
        drm/amdgpu: add lock for interval tree in vm
        drm/amdgpu: keep the owner for VMIDs
        drm/amdgpu: move VM manager clean into the VM code again
        drm/amdgpu: cleanup VM coding style
        drm/amdgpu: remove unused VM manager field
        drm/amdgpu: cleanup scheduler command submission
        drm/amdgpu: fix typo in firmware name
        drm/i915: Consider SPLL as another shared pll, v2.
        drm/i915: Fix gpu frequency change tracing
        drm/vc4: Make sure that planes aren't scaled.
        drm/vc4: Fix some failure to track __iomem decorations on pointers.
        drm/vc4: checking for NULL instead of IS_ERR
        drm/vc4: fix itnull.cocci warnings
        drm/vc4: fix platform_no_drv_owner.cocci warnings
        drm/vc4: vc4_plane_duplicate_state() can be static
        ...
      c69bde78
    • Linus Torvalds's avatar
      Merge tag 'for-linus-4.4' of git://git.code.sf.net/p/openipmi/linux-ipmi · cd6caf55
      Linus Torvalds authored
      Pull IPMI updates from Corey Minyard:
       "Some fixes for small IPMI problems.
      
        The most significant is that the driver wasn't starting the timer for
        some messages, which would result in problems if that message failed
        for some reason.
      
        The others are small optimizations or making things a little neater"
      
      * tag 'for-linus-4.4' of git://git.code.sf.net/p/openipmi/linux-ipmi:
        ipmi watchdog : add panic_wdt_timeout parameter
        char: ipmi: Move MODULE_DEVICE_TABLE() to follow struct
        ipmi: Stop the timer immediately if idle
        ipmi: Start the timer and thread on internal msgs
      cd6caf55
    • Linus Torvalds's avatar
      Merge tag 'renesas-sh-drivers-for-v4.4' of... · 8bdddfae
      Linus Torvalds authored
      Merge tag 'renesas-sh-drivers-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas
      
      Pull SH driver fixlet from Simon Horman:
       "I am sending this change after v4.4-rc1 has been released as it
        depends on SoC changes which are present in that rc:
      
         = Remove now unnecessary reference to CONFIG_ARCH_SHMOBILE_MULTI"
      
      * tag 'renesas-sh-drivers-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
        drivers: sh: Get rid of CONFIG_ARCH_SHMOBILE_MULTI
      8bdddfae
    • Rafael J. Wysocki's avatar
      Merge branches 'acpi-smbus', 'acpi-ec' and 'acpi-pci' · a3767e3c
      Rafael J. Wysocki authored
      * acpi-smbus:
        Revert "ACPI / SBS: Add 5 us delay to fix SBS hangs on MacBook"
        ACPI / SMBus: Fix boot stalls / high CPU caused by reentrant code
      
      * acpi-ec:
        ACPI-EC: Drop unnecessary check made before calling acpi_ec_delete_query()
      
      * acpi-pci:
        PCI: Fix OF logic in pci_dma_configure()
      a3767e3c