1. 27 May, 2016 1 commit
  2. 25 May, 2016 18 commits
    • Al Viro's avatar
      restore killability of old mutex_lock_killable(&inode->i_mutex) users · 00235411
      Al Viro authored
      The ones that are taking it exclusive, that is...
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      00235411
    • Al Viro's avatar
      add down_write_killable_nested() · 887bddfa
      Al Viro authored
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      887bddfa
    • Al Viro's avatar
      update D/f/directory-locking · d42b3868
      Al Viro authored
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      d42b3868
    • Linus Torvalds's avatar
      Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 0985b65d
      Linus Torvalds authored
      Pull vfs iov_iter regression fix from Al Viro:
       "Fix for braino in 'fold checks into iterate_and_advance()'"
      
      * 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        do "fold checks into iterate_and_advance()" right
      0985b65d
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 55c1c7b2
      Linus Torvalds authored
      Pull vfs xattr regression fixes from Al Viro.
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        make xattr_resolve_handlers() safe to use with NULL ->s_xattr
        xattr: Fail with -EINVAL for NULL attribute names
      55c1c7b2
    • Linus Torvalds's avatar
      Merge tag 'acpi-4.7-rc1-more' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · e92677df
      Linus Torvalds authored
      Pull ACPI fix from Rafael Wysocki:
       "Additional ACPI update for v4.7-rc1
      
        Just one fix for incorrect async_synchronize_cookie() usage in the
        ACPI battery driver (Chris Wilson)"
      
      * tag 'acpi-4.7-rc1-more' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        ACPI / battery: Correctly serialise with the pending async probe
      e92677df
    • Linus Torvalds's avatar
      Merge tag 'pm-4.7-rc1-more' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 877c057d
      Linus Torvalds authored
      Pull more power management updates from Rafael Wysocki:
       "These are two stable-candidate fixes (PM core, cpuidle) and a bunch of
        cpufreq cleanups.
      
        Specifics:
      
         - Stable-candidate cpuidle fix to make it check the right variable
           when deciding whether or not to enable interrupts on the local CPU
           so as to avoid enabling iterrupts too early in some cases if the
           system has both coupled and per-core idle states (Daniel Lezcano).
      
         - Stable-candidate PM core fix to make it handle failures at the
           "late suspend" stage of device suspend consistently for all devices
           regardless of whether or not async suspend/resume is enabled for
           them (Rafael Wysocki).
      
         - Cleanups in the cpufreq core, the schedutil governor and the
           intel_pstate driver (Rafael Wysocki, Pankaj Gupta, Viresh Kumar)"
      
      * tag 'pm-4.7-rc1-more' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        PM / sleep: Handle failures in device_suspend_late() consistently
        cpufreq: schedutil: Improve prints messages with pr_fmt
        cpuidle: Fix cpuidle_state_is_coupled() argument in cpuidle_enter()
        cpufreq: simplified goto out in cpufreq_register_driver()
        cpufreq: governor: CPUFREQ_GOV_STOP never fails
        cpufreq: governor: CPUFREQ_GOV_POLICY_EXIT never fails
        intel_pstate: Simplify conditional in intel_pstate_set_policy()
      877c057d
    • Al Viro's avatar
      do "fold checks into iterate_and_advance()" right · 19f18459
      Al Viro authored
      the only case when we should skip the iterate_and_advance() guts
      is when nothing's left in the iterator, _not_ just when requested
      amount is 0.  Said guts will do nothing in the latter case anyway;
      the problem we tried to deal with in the aforementioned commit is
      that when there's nothing left *and* the amount requested is 0,
      we might end up deferencing one iovec too many; the value we fetch
      from there is discarded in that case, but theoretically it might
      oops if the iovec array ends exactly at the end of page with the
      next page not mapped.
      
      Bailing out on zero size requested had an unexpected side effect -
      zero-length segment in the beginning of iovec array ended up
      throwing do_loop_readv_writev() into infinite spin; we do not
      advance past the empty segment at all.  Reproducer is trivial:
      echo '#include <sys/uio.h>' >a.c
      echo 'main() {char c; struct iovec v[] = {{&c,0},{&c,1}}; readv(0,v,2);}' >>a.c
      cc a.c && ./a.out </proc/uptime
      
      which should end up with the process not hanging.  Probably ought to
      go into LTP or xfstests...
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      19f18459
    • Al Viro's avatar
    • Andreas Gruenbacher's avatar
      xattr: Fail with -EINVAL for NULL attribute names · aaf431b4
      Andreas Gruenbacher authored
      Commit 98e9cb57 improved the xattr name checks in xattr_resolve_name but
      didn't update the NULL attribute name check appropriately, so NULL
      attribute names lead to NULL pointer dereferences.  Turn that into
      -EINVAL results instead.
      Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
        fs/xattr.c | 2 +-
        1 file changed, 1 insertion(+), 1 deletion(-)
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      aaf431b4
    • Rafael J. Wysocki's avatar
      Merge branch 'acpi-battery' · 0cc4b481
      Rafael J. Wysocki authored
      * acpi-battery:
        ACPI / battery: Correctly serialise with the pending async probe
      0cc4b481
    • Rafael J. Wysocki's avatar
      Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'pm-core' · 4c2628cd
      Rafael J. Wysocki authored
      * pm-cpufreq:
        cpufreq: schedutil: Improve prints messages with pr_fmt
        cpufreq: simplified goto out in cpufreq_register_driver()
        cpufreq: governor: CPUFREQ_GOV_STOP never fails
        cpufreq: governor: CPUFREQ_GOV_POLICY_EXIT never fails
        intel_pstate: Simplify conditional in intel_pstate_set_policy()
      
      * pm-cpuidle:
        cpuidle: Fix cpuidle_state_is_coupled() argument in cpuidle_enter()
      
      * pm-core:
        PM / sleep: Handle failures in device_suspend_late() consistently
      4c2628cd
    • Linus Torvalds's avatar
      Merge tag 'pwm/for-4.7-rc1' of... · ecc5fbd5
      Linus Torvalds authored
      Merge tag 'pwm/for-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
      
      Pull pwm updates from Thierry Reding:
       "This set of changes introduces an atomic API to the PWM subsystem.
        This is influenced by the DRM atomic API that was introduced a while
        back, though it is obviously a lot simpler.  The fundamental idea
        remains the same, though: drivers provide a single callback to
        implement the atomic configuration of a PWM channel.
      
        As a side-effect the PWM subsystem gains the ability for initial state
        retrieval, so that the logical state mirrors that of the hardware.
        Many use-cases don't care about this, but for others it is essential.
      
        These new features require changes in all users, which these patches
        take care of.  The core is transitioned to use the atomic callback if
        available and provides a fallback mechanism for other drivers.
      
        Changes to transition users and drivers to the atomic API are
        postponed to v4.8"
      
      * tag 'pwm/for-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (30 commits)
        pwm: Add information about polarity, duty cycle and period to debugfs
        pwm: Switch to the atomic API
        pwm: Update documentation
        pwm: Add core infrastructure to allow atomic updates
        pwm: Add hardware readout infrastructure
        pwm: Move the enabled/disabled info into pwm_state
        pwm: Introduce the pwm_state concept
        pwm: Keep PWM state in sync with hardware state
        ARM: Explicitly apply PWM config extracted from pwm_args
        drm: i915: Explicitly apply PWM config extracted from pwm_args
        input: misc: pwm-beeper: Explicitly apply PWM config extracted from pwm_args
        input: misc: max8997: Explicitly apply PWM config extracted from pwm_args
        backlight: lm3630a: explicitly apply PWM config extracted from pwm_args
        backlight: lp855x: Explicitly apply PWM config extracted from pwm_args
        backlight: lp8788: Explicitly apply PWM config extracted from pwm_args
        backlight: pwm_bl: Use pwm_get_args() where appropriate
        fbdev: ssd1307fb: Use pwm_get_args() where appropriate
        regulator: pwm: Use pwm_get_args() where appropriate
        leds: pwm: Use pwm_get_args() where appropriate
        input: misc: max77693: Use pwm_get_args() where appropriate
        ...
      ecc5fbd5
    • Linus Torvalds's avatar
      Merge git://www.linux-watchdog.org/linux-watchdog · 1f93d2ab
      Linus Torvalds authored
      Pull watchdog updates from Wim Van Sebroeck:
      
       - add support for Fintek F81865 Super-IO chip
      
       - add support for watchdogs (RWDT and SWDT) found on RCar Gen3 based
         SoCs from Renesas
      
       - octeon: Handle the FROZEN hot plug notifier actions
      
       - f71808e_wdt fixes and cleanups
      
       - some small improvements in code and documentation
      
      * git://www.linux-watchdog.org/linux-watchdog:
        MAINTAINERS: Add file patterns for watchdog device tree bindings
        Documentation: Add ebc-c384_wdt watchdog-parameters.txt entry
        watchdog: shwdt: Use setup_timer()
        watchdog: cpwd: Use setup_timer()
        arm64: defconfig: enable Renesas Watchdog Timer
        watchdog: renesas-wdt: add driver
        watchdog: remove error message when unable to allocate watchdog device
        watchdog: f71808e_wdt: Fix WDTMOUT_STS register read
        watchdog: f71808e_wdt: Fix typo
        watchdog: f71808e_wdt: Add F81865 support
        watchdog: sp5100_tco: properly check for new register layouts
        watchdog: core: Fix circular locking dependency
        watchdog: core: fix trivial typo in a comment
        watchdog: hpwdt: Adjust documentation to match latest kernel module parameters.
        watchdog: imx2_wdt: add external reset support via dt prop
        watchdog: octeon: Handle the FROZEN hot plug notifier actions.
        watchdog: qcom: Report reboot reason
      1f93d2ab
    • Linus Torvalds's avatar
      Merge tag 'vfio-v4.7-rc1' of git://github.com/awilliam/linux-vfio · 48dd7cef
      Linus Torvalds authored
      Pull VFIO updates from Alex Williamson:
      
       - Hide INTx on certain known broken devices (Alex Williamson)
      
       - Additional backdoor reset detection (Alex Williamson)
      
       - Remove unused iommudata reference (Alexey Kardashevskiy)
      
       - Use cfg_size to avoid probing extended config space (Alexey
         Kardashevskiy)
      
      * tag 'vfio-v4.7-rc1' of git://github.com/awilliam/linux-vfio:
        vfio_pci: Test for extended capabilities if config space > 256 bytes
        vfio_iommu_spapr_tce: Remove unneeded iommu_group_get_iommudata
        vfio/pci: Add test for BAR restore
        vfio/pci: Hide broken INTx support from user
      48dd7cef
    • Linus Torvalds's avatar
      Merge tag 'drm-4.7-rc1-headers-fix' of git://people.freedesktop.org/~airlied/linux · b462b37b
      Linus Torvalds authored
      Pull header warning fix from Dave Airlie:
       "Here is the C++ guards warning fix from Arnd"
      
      [ Background: there are 'extern "C" { }' guards in include/uapi for the
        GPU headers.
      
        They should arguably be wrapped somehow, but as it is they caused
        checkpatch to warn because it would trigger on the 'extern' and think
        it's exporting a function or variable from the kernel to user space.
      
        This just fixes checkpatch.  Whether we wrap the C++ guards some way
        in the future will be an independent issue. ]
      
      * tag 'drm-4.7-rc1-headers-fix' of git://people.freedesktop.org/~airlied/linux:
        headers_check: don't warn about c++ guards
      b462b37b
    • Linus Torvalds's avatar
      Merge branch 'parisc-4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · 24c82fbb
      Linus Torvalds authored
      Pull parisc updates from Helge Deller:
      
       - Add native high-resolution timing code for sched_clock() and other
         timing functions based on the processor internal cr16 cycle counters
      
       - Add syscall tracepoint support
      
       - Add regset support
      
       - Speed up get_user() and put_user() functions
      
       - Updated futex.h to match generic implementation (John David Anglin)
      
       - A few smaller ftrace build fixes
      
       - Fixed thuge-gen kernel self test to utilize architectured MAP_HUGETLB
         value
      
       - Added parisc architecture to seccomp_bpf kernel self test
      
       - Various typo fixes (Andrea Gelmini)
      
      * 'parisc-4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
        parisc: Whitespace cleanups in unistd.h
        parisc: Use long jump to reach ftrace_return_to_handler()
        parisc: Fix typo in fpudispatch.c
        parisc: Fix typos in eisa_eeprom.h
        parisc: Fix typo in ldcw.h
        parisc: Fix typo in pdc.h
        parisc: Update futex.h to match generic implementation
        parisc: Merge ftrace C-helper and assembler functions into .text.hot section
        selftests/thuge-gen: Use platform specific MAP_HUGETLB value
        parisc: Add native high-resolution sched_clock() implementation
        parisc: Add ARCH_TRACEHOOK and regset support
        parisc: Add 64bit get_user() and put_user() for 32bit kernel
        parisc: Simplify and speed up get_user() and put_user()
        parisc: Add syscall tracepoint support
      24c82fbb
    • Helge Deller's avatar
      parisc: Whitespace cleanups in unistd.h · 784c2213
      Helge Deller authored
      Clean up whitespaces and mark unused syscalls as such.
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      784c2213
  3. 24 May, 2016 19 commits
    • Linus Torvalds's avatar
      Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 28165ec7
      Linus Torvalds authored
      Pull ARM SoC fixes from Arnd Bergmann:
       "This is a first set of bug fixes on top of what was merged for 4.7.
      
        Two patches for lpc32xx address a harmless build warning that was just
        introduced, one patch for the mediatek soc driver fixes a warning for
        arm64, and the pxa changes are minor cleanups that should have been
        part of the original pull requests but that I forgot to apply to the
        cleanup-fixes branch earlier"
      
      * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
        ARM: lpc32xx: fix NR_IRQS confict
        ARM: lpc32xx: remove legacy irq controller driver
        soc: mtk-pmic-wrap: avoid integer overflow warning
        ARM: pxa: Remove CLK_IS_ROOT
        ARM: pxa: activate pinctrl for device-tree machines
      28165ec7
    • Linus Torvalds's avatar
      Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 08344f3b
      Linus Torvalds authored
      Pull ARM SoC late DT updates from Arnd Bergmann:
       "This is a collection of a few late fixes and other misc stuff that had
        dependencies on things being merged from other trees.
      
        The Renesas R-Car power domain handling, and the Nvidia Tegra USB
        support both hand notable changes that required changing the DT
        binding in a way that only provides compatibility with old DT blobs on
        new kernels but not vice versa.  As a consequence, the DT changes are
        based on top of the driver changes and are now in this branch.
      
        For NXP i.MX and Samsung Exynos, the changes in here depend on other
        changes that got merged through the clk maintainer tree"
      
      * tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (35 commits)
        ARM: dts: exynos: Add support of Bus frequency using VDD_INT for exynos5422-odroidxu3
        ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos542x SoC
        ARM: dts: exynos: Add NoC Probe dt node for Exynos542x SoC
        ARM: dts: exynos: Add support of bus frequency for exynos4412-trats/odroidu3
        ARM: dts: exynos: Expand the voltage range of buck1/3 regulator for exynos4412-odroidu3
        ARM: dts: exynos: Add support of bus frequency using VDD_INT for exynos3250-rinato
        ARM: dts: exynos: Add exynos4412-ppmu-common dtsi to delete duplicate PPMU nodes
        ARM: dts: exynos: Add bus nodes using VDD_MIF for Exynos4210
        ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos4x12
        ARM: dts: exynos: Add bus nodes using VDD_MIF for Exynos4x12
        ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos3250
        ARM: dts: exynos: Add DMC bus frequency for exynos3250-rinato/monk
        ARM: dts: exynos: Add DMC bus node for Exynos3250
        ARM: tegra: Enable XUSB on Nyan
        ARM: tegra: Enable XUSB on Jetson TK1
        ARM: tegra: Enable XUSB on Venice2
        ARM: tegra: Add Tegra124 XUSB controller
        ARM: tegra: Move Tegra124 to the new XUSB pad controller binding
        ARM: dts: r8a7794: Use SYSC "always-on" PM Domain
        ARM: dts: r8a7793: Use SYSC "always-on" PM Domain
        ...
      08344f3b
    • Linus Torvalds's avatar
      Merge tag 'asm-generic-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic · d04f90ff
      Linus Torvalds authored
      Pull asm-generic cleanup from Arnd Bergmann:
       "I have only one patch for asm-generic in this release, this one is
        from James Hogan and updates the generic system call table for
        renameat2 so we don't need to provide both renameat and renameat2 in
        newly added architectures"
      
      * tag 'asm-generic-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
        asm-generic: Drop renameat syscall from default list
      d04f90ff
    • Linus Torvalds's avatar
      Merge tag 'nfsd-4.7' of git://linux-nfs.org/~bfields/linux · 5d22c5ab
      Linus Torvalds authored
      Pull nfsd updates from Bruce Fields:
       "A very quiet cycle for nfsd, mainly just an RDMA update from Chuck
        Lever"
      
      * tag 'nfsd-4.7' of git://linux-nfs.org/~bfields/linux:
        sunrpc: fix stripping of padded MIC tokens
        svcrpc: autoload rdma module
        svcrdma: Generalize svc_rdma_xdr_decode_req()
        svcrdma: Eliminate code duplication in svc_rdma_recvfrom()
        svcrdma: Drain QP before freeing svcrdma_xprt
        svcrdma: Post Receives only for forward channel requests
        svcrdma: Remove superfluous line from rdma_read_chunks()
        svcrdma: svc_rdma_put_context() is invoked twice in Send error path
        svcrdma: Do not add XDR padding to xdr_buf page vector
        svcrdma: Support IPv6 with NFS/RDMA
        nfsd: handle seqid wraparound in nfsd4_preprocess_layout_stateid
        Remove unnecessary allocation
      5d22c5ab
    • Linus Torvalds's avatar
      Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · 0e01df10
      Linus Torvalds authored
      Pull ext4 updates from Ted Ts'o:
       "Fix a number of bugs, most notably a potential stale data exposure
        after a crash and a potential BUG_ON crash if a file has the data
        journalling flag enabled while it has dirty delayed allocation blocks
        that haven't been written yet.  Also fix a potential crash in the new
        project quota code and a maliciously corrupted file system.
      
        In addition, fix some DAX-specific bugs, including when there is a
        transient ENOSPC situation and races between writes via direct I/O and
        an mmap'ed segment that could lead to lost I/O.
      
        Finally the usual set of miscellaneous cleanups"
      
      * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (23 commits)
        ext4: pre-zero allocated blocks for DAX IO
        ext4: refactor direct IO code
        ext4: fix race in transient ENOSPC detection
        ext4: handle transient ENOSPC properly for DAX
        dax: call get_blocks() with create == 1 for write faults to unwritten extents
        ext4: remove unmeetable inconsisteny check from ext4_find_extent()
        jbd2: remove excess descriptions for handle_s
        ext4: remove unnecessary bio get/put
        ext4: silence UBSAN in ext4_mb_init()
        ext4: address UBSAN warning in mb_find_order_for_block()
        ext4: fix oops on corrupted filesystem
        ext4: fix check of dqget() return value in ext4_ioctl_setproject()
        ext4: clean up error handling when orphan list is corrupted
        ext4: fix hang when processing corrupted orphaned inode list
        ext4: remove trailing \n from ext4_warning/ext4_error calls
        ext4: fix races between changing inode journal mode and ext4_writepages
        ext4: handle unwritten or delalloc buffers before enabling data journaling
        ext4: fix jbd2 handle extension in ext4_ext_truncate_extend_restart()
        ext4: do not ask jbd2 to write data for delalloc buffers
        jbd2: add support for avoiding data writes during transaction commits
        ...
      0e01df10
    • Arnd Bergmann's avatar
      ARM: lpc32xx: fix NR_IRQS confict · 09564b7d
      Arnd Bergmann authored
      With the change to sparse IRQs, the lpc32xx platform gets a warning about
      conflicting macros:
      
      In file included from arch/arm/mach-lpc32xx/irq.c:31:0:
      arch/arm/mach-lpc32xx/include/mach/irqs.h:115:0: warning: "NR_IRQS" redefined
       #define NR_IRQS    96
      arch/arm/include/asm/irq.h:9:0: note: this is the location of the previous definition
       #define NR_IRQS NR_IRQS_LEGACY
      
      One such instance was in the old irq driver that is now removed by
      the previous patch, but any other file including mach/irqs.h still
      has the issue. Since none of them use this constant, we can just
      remove the old definition.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Fixes: 8cb17b5e ("irqchip: Add LPC32xx interrupt controller driver")
      09564b7d
    • Vladimir Zapolskiy's avatar
      ARM: lpc32xx: remove legacy irq controller driver · 342f3f9b
      Vladimir Zapolskiy authored
      New NXP LPC32xx irq chip driver is used instead of a legacy one.
      
      [this also fixes a harmless build warning about the NR_IRQS redefinition]
      Signed-off-by: default avatarVladimir Zapolskiy <vz@mleia.com>
      Acked-by: default avatarSylvain Lemieux <slemieux.tyco@gmail.com>
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      342f3f9b
    • Linus Torvalds's avatar
      Merge tag 'spi-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi · a56f4895
      Linus Torvalds authored
      Pull spi updates from Mark Brown:
       "Another quiet release for SPI, almost entirely driver specific changes
        with the diffstat dominated by two new drivers which are about two
        thirds of it in terms of lines of code:
      
         - new drivers for PIC32 standard and SQI controllers
         - the Cadence driver has had runtime PM support added and quite a few
           fixes and cleanups
         - flash-specific accelerated path support now has a feature query
           interface
         - the pxa2xx driver has been moved to use the core DMA mapping support"
      
      * tag 'spi-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (48 commits)
        spi: pic32-sqi: Fix linker error, undefined reference to `bad_dma_ops'
        spi: dw-pci: Spelling s/paltforms/platforms/g
        spi: pic32-sqi: Remove pic32_sqi_setup and pic32_sqi_cleanup
        spi: Fix simple typo s/impelment/implement
        spi: rockchip: potential NULL dereference on error
        spi: zynqmp: disable clocks in error paths
        spi: Drop unnecessary dependencies on relaxed I/O accessors
        spi: qup: Add spi_master_put in remove function
        spi: qup: Handle clocks in pm_runtime suspend and resume
        spi: st-ssc4: Fix missing spi_master_put in spi_st_probe error paths
        spi: st-ssc4: Allow compile test build
        spi: omap2-mcspi: Use dma_request_chan() for requesting DMA channel
        spi: davinci: Use dma_request_chan() for requesting DMA channel
        spi: pic32: Fix checking return value of devm_ioremap_resource
        spi: spi-fsl-dspi: Update DT binding documentation
        spi: Drop duplicate code to set master->dev.parent
        spi: pic32: Set proper bits_per_word_mask
        spi: return error if kmap'd buffers passed to spi_map_buf()
        spi: core: add hook flash_read_supported to spi_master
        spi: pic32-sqi: silence array overflow warning
        ...
      a56f4895
    • Linus Torvalds's avatar
      Merge tag 'for-linus-20160523' of git://git.infradead.org/linux-mtd · 8bc4d5f3
      Linus Torvalds authored
      Pull MTD updates from Brian Norris:
       "First cycle with Boris as NAND maintainer! Many (most) bullets stolen
        from him.
      
        Generic:
         - Migrated NAND LED trigger to be a generic MTD trigger
      
        NAND:
         - Introduction of the "ECC algorithm" concept, to avoid overloading
           the ECC mode field too much more
         - Replaced the nand_ecclayout infrastructure with something a little
           more flexible (finally!) and future proof
         - Rework of the OMAP GPMC and NAND drivers; the TI folks pulled some
           of this into their own tree as well
         - Prepare the sunxi NAND driver to receive DMA support
         - Handle bitflips in erased pages on GPMI revisions that do not
           support this in hardware.
      
        SPI NOR:
         - Start using the spi_flash_read() API for SPI drivers that support
           it (i.e., SPI drivers with special memory-mapped flash modes)
      
        And other small scattered improvments"
      
      * tag 'for-linus-20160523' of git://git.infradead.org/linux-mtd: (155 commits)
        mtd: spi-nor: support GigaDevice gd25lq64c
        mtd: nand_bch: fix spelling of "probably"
        mtd: brcmnand: respect ECC algorithm set by NAND subsystem
        gpmi-nand: Handle ECC Errors in erased pages
        Documentation: devicetree: deprecate "soft_bch" nand-ecc-mode value
        mtd: nand: add support for "nand-ecc-algo" DT property
        mtd: mtd: drop NAND_ECC_SOFT_BCH enum value
        mtd: drop support for NAND_ECC_SOFT_BCH as "soft_bch" mapping
        mtd: nand: read ECC algorithm from the new field
        mtd: nand: fsmc: validate ECC setup by checking algorithm directly
        mtd: nand: set ECC algorithm to Hamming on fallback
        staging: mt29f_spinand: set ECC algorithm explicitly
        CRIS v32: nand: set ECC algorithm explicitly
        mtd: nand: atmel: set ECC algorithm explicitly
        mtd: nand: davinci: set ECC algorithm explicitly
        mtd: nand: bf5xx: set ECC algorithm explicitly
        mtd: nand: omap2: Fix high memory dma prefetch transfer
        mtd: nand: omap2: Start dma request before enabling prefetch
        mtd: nandsim: add __init attribute
        mtd: nand: move of_get_nand_xxx() helpers into nand_base.c
        ...
      8bc4d5f3
    • Linus Torvalds's avatar
      Merge tag 'for-linus-4.7-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip · 29567292
      Linus Torvalds authored
      Pull xen bug fixes from David Vrabel.
      
      * tag 'for-linus-4.7-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
        xen: use same main loop for counting and remapping pages
        xen/events: Don't move disabled irqs
        xen/x86: actually allocate legacy interrupts on PV guests
        Xen: don't warn about 2-byte wchar_t in efi
        xen/gntdev: reduce copy batch size to 16
        xen/x86: don't lose event interrupts
      29567292
    • Linus Torvalds's avatar
      Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost · ecaba718
      Linus Torvalds authored
      Pull virtio updates from Michael Tsirkin:
       "Looks like a quiet cycle for virtio.  There's a new inorder option for
        the ringtest tool, and a bugfix for balloon for ppc platforms when
        using virtio 1 mode"
      
      * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
        ringtest: pass buf != NULL
        virtio_balloon: fix PFN format for virtio-1
        virtio: add inorder option
      ecaba718
    • Linus Torvalds's avatar
      Merge tag 'nios2-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2 · e989cc56
      Linus Torvalds authored
      Pull nios2 update from Ley Foon Tan:
       - add order-only DTC dependency to %.dtb target
       - fix libgcc location detection
      
      * tag 'nios2-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
        nios2: Add order-only DTC dependency to %.dtb target
        nios2: Fix libgcc location detection
      e989cc56
    • Linus Torvalds's avatar
      Merge tag 'microblaze-4.7-rc1' of git://git.monstr.eu/linux-2.6-microblaze · 36b150bb
      Linus Torvalds authored
      Pull Microblaze updates from Michal Simek:
      
       - Wire-up new syscalls
      
       - Fix link error
      
      * tag 'microblaze-4.7-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
        microblaze: pci: export isa_io_base to fix link errors
        microblaze: Wire up userfaultfd, membarrier, mlock2 syscalls
      36b150bb
    • Juergen Gross's avatar
      xen: use same main loop for counting and remapping pages · dd14be92
      Juergen Gross authored
      Instead of having two functions for cycling through the E820 map in
      order to count to be remapped pages and remap them later, just use one
      function with a caller supplied sub-function called for each region to
      be processed. This eliminates the possibility of a mismatch between
      both loops which showed up in certain configurations.
      Suggested-by: default avatarEd Swierk <eswierk@skyportsystems.com>
      Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
      dd14be92
    • Ross Lagerwall's avatar
      xen/events: Don't move disabled irqs · f0f39387
      Ross Lagerwall authored
      Commit ff1e22e7 ("xen/events: Mask a moving irq") open-coded
      irq_move_irq() but left out checking if the IRQ is disabled. This broke
      resuming from suspend since it tries to move a (disabled) irq without
      holding the IRQ's desc->lock. Fix it by adding in a check for disabled
      IRQs.
      
      The resulting stacktrace was:
      kernel BUG at /build/linux-UbQGH5/linux-4.4.0/kernel/irq/migration.c:31!
      invalid opcode: 0000 [#1] SMP
      Modules linked in: xenfs xen_privcmd ...
      CPU: 0 PID: 9 Comm: migration/0 Not tainted 4.4.0-22-generic #39-Ubuntu
      Hardware name: Xen HVM domU, BIOS 4.6.1-xs125180 05/04/2016
      task: ffff88003d75ee00 ti: ffff88003d7bc000 task.ti: ffff88003d7bc000
      RIP: 0010:[<ffffffff810e26e2>]  [<ffffffff810e26e2>] irq_move_masked_irq+0xd2/0xe0
      RSP: 0018:ffff88003d7bfc50  EFLAGS: 00010046
      RAX: 0000000000000000 RBX: ffff88003d40ba00 RCX: 0000000000000001
      RDX: 0000000000000001 RSI: 0000000000000100 RDI: ffff88003d40bad8
      RBP: ffff88003d7bfc68 R08: 0000000000000000 R09: ffff88003d000000
      R10: 0000000000000000 R11: 000000000000023c R12: ffff88003d40bad0
      R13: ffffffff81f3a4a0 R14: 0000000000000010 R15: 00000000ffffffff
      FS:  0000000000000000(0000) GS:ffff88003da00000(0000) knlGS:0000000000000000
      CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      CR2: 00007fd4264de624 CR3: 0000000037922000 CR4: 00000000003406f0
      DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
      DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
      Stack:
       ffff88003d40ba38 0000000000000024 0000000000000000 ffff88003d7bfca0
       ffffffff814c8d92 00000010813ef89d 00000000805ea732 0000000000000009
       0000000000000024 ffff88003cc39b80 ffff88003d7bfce0 ffffffff814c8f66
      Call Trace:
       [<ffffffff814c8d92>] eoi_pirq+0xb2/0xf0
       [<ffffffff814c8f66>] __startup_pirq+0xe6/0x150
       [<ffffffff814ca659>] xen_irq_resume+0x319/0x360
       [<ffffffff814c7e75>] xen_suspend+0xb5/0x180
       [<ffffffff81120155>] multi_cpu_stop+0xb5/0xe0
       [<ffffffff811200a0>] ? cpu_stop_queue_work+0x80/0x80
       [<ffffffff811203d0>] cpu_stopper_thread+0xb0/0x140
       [<ffffffff810a94e6>] ? finish_task_switch+0x76/0x220
       [<ffffffff810ca731>] ? __raw_callee_save___pv_queued_spin_unlock+0x11/0x20
       [<ffffffff810a3935>] smpboot_thread_fn+0x105/0x160
       [<ffffffff810a3830>] ? sort_range+0x30/0x30
       [<ffffffff810a0588>] kthread+0xd8/0xf0
       [<ffffffff810a04b0>] ? kthread_create_on_node+0x1e0/0x1e0
       [<ffffffff8182568f>] ret_from_fork+0x3f/0x70
       [<ffffffff810a04b0>] ? kthread_create_on_node+0x1e0/0x1e0
      Signed-off-by: default avatarRoss Lagerwall <ross.lagerwall@citrix.com>
      Reviewed-by: default avatarBoris Ostrovsky <boris.ostrovsky@oracle.com>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
      f0f39387
    • Stefano Stabellini's avatar
      xen/x86: actually allocate legacy interrupts on PV guests · 702f9260
      Stefano Stabellini authored
      b4ff8389 is incomplete: relies on nr_legacy_irqs() to get the number
      of legacy interrupts when actually nr_legacy_irqs() returns 0 after
      probe_8259A(). Use NR_IRQS_LEGACY instead.
      Signed-off-by: default avatarStefano Stabellini <sstabellini@kernel.org>
      CC: stable@vger.kernel.org
      702f9260
    • Arnd Bergmann's avatar
      Xen: don't warn about 2-byte wchar_t in efi · 971a69db
      Arnd Bergmann authored
      The XEN UEFI code has become available on the ARM architecture
      recently, but now causes a link-time warning:
      
      ld: warning: drivers/xen/efi.o uses 2-byte wchar_t yet the output is to use 4-byte wchar_t; use of wchar_t values across objects may fail
      
      This seems harmless, because the efi code only uses 2-byte
      characters when interacting with EFI, so we don't pass on those
      strings to elsewhere in the system, and we just need to
      silence the warning.
      
      It is not clear to me whether we actually need to build the file
      with the -fshort-wchar flag, but if we do, then we should also
      pass --no-wchar-size-warning to the linker, to avoid the warning.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Reviewed-by: default avatarStefano Stabellini <sstabellini@kernel.org>
      Fixes: 37060935dc04 ("ARM64: XEN: Add a function to initialize Xen specific UEFI runtime services")
      971a69db
    • David Vrabel's avatar
      xen/gntdev: reduce copy batch size to 16 · 36ae220a
      David Vrabel authored
      IOCTL_GNTDEV_GRANT_COPY batches copy operations to reduce the number
      of hypercalls.  The stack is used to avoid a memory allocation in a
      hot path. However, a batch size of 24 requires more than 1024 bytes of
      stack which in some configurations causes a compiler warning.
      
          xen/gntdev.c: In function ‘gntdev_ioctl_grant_copy’:
          xen/gntdev.c:949:1: warning: the frame size of 1248 bytes is
          larger than 1024 bytes [-Wframe-larger-than=]
      
      This is a harmless warning as there is still plenty of stack spare,
      but people keep trying to "fix" it.  Reduce the batch size to 16 to
      reduce stack usage to less than 1024 bytes.  This should have minimal
      impact on performance.
      Signed-off-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
      36ae220a
    • Stefano Stabellini's avatar
      xen/x86: don't lose event interrupts · c06b6d70
      Stefano Stabellini authored
      On slow platforms with unreliable TSC, such as QEMU emulated machines,
      it is possible for the kernel to request the next event in the past. In
      that case, in the current implementation of xen_vcpuop_clockevent, we
      simply return -ETIME. To be precise the Xen returns -ETIME and we pass
      it on. However the result of this is a missed event, which simply causes
      the kernel to hang.
      
      Instead it is better to always ask the hypervisor for a timer event,
      even if the timeout is in the past. That way there are no lost
      interrupts and the kernel survives. To do that, remove the
      VCPU_SSHOTTMR_future flag.
      Signed-off-by: default avatarStefano Stabellini <sstabellini@kernel.org>
      Acked-by: default avatarJuergen Gross <jgross@suse.com>
      c06b6d70
  4. 23 May, 2016 2 commits
    • Arnd Bergmann's avatar
      headers_check: don't warn about c++ guards · 92181d47
      Arnd Bergmann authored
      A recent addition to the DRM tree for 4.7 added 'extern "C"' guards
      for c++ to all the DRM headers, and that now causes warnings
      in 'make headers_check':
      
      usr/include/drm/amdgpu_drm.h:38: userspace cannot reference function or variable defined in the kernel
      usr/include/drm/drm.h:63: userspace cannot reference function or variable defined in the kernel
      usr/include/drm/drm.h:699: userspace cannot reference function or variable defined in the kernel
      usr/include/drm/drm_fourcc.h:30: userspace cannot reference function or variable defined in the kernel
      usr/include/drm/drm_mode.h:33: userspace cannot reference function or variable defined in the kernel
      usr/include/drm/drm_sarea.h:38: userspace cannot reference function or variable defined in the kernel
      usr/include/drm/exynos_drm.h:21: userspace cannot reference function or variable defined in the kernel
      usr/include/drm/i810_drm.h:7: userspace cannot reference function or variable defined in the kernel
      
      This changes the headers_check.pl script to not warn about this.
      I'm listing the merge commit as introducing the problem, because
      there are several patches in this branch that each do this for
      one file.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Fixes: 7c10ddf8 ("Merge branch 'drm-uapi-extern-c-fixes' of https://github.com/evelikov/linux into drm-next")
      Reviewed-by: default avatarEmil Velikov <emil.l.velikov@gmail.com>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      92181d47
    • Linus Torvalds's avatar
      Merge branch 'akpm' (patches from Andrew) · 84787c57
      Linus Torvalds authored
      Merge yet more updates from Andrew Morton:
      
       - Oleg's "wait/ptrace: assume __WALL if the child is traced".  It's a
         kernel-based workaround for existing userspace issues.
      
       - A few hotfixes
      
       - befs cleanups
      
       - nilfs2 updates
      
       - sys_wait() changes
      
       - kexec updates
      
       - kdump
      
       - scripts/gdb updates
      
       - the last of the MM queue
      
       - a few other misc things
      
      * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (84 commits)
        kgdb: depends on VT
        drm/amdgpu: make amdgpu_mn_get wait for mmap_sem killable
        drm/radeon: make radeon_mn_get wait for mmap_sem killable
        drm/i915: make i915_gem_mmap_ioctl wait for mmap_sem killable
        uprobes: wait for mmap_sem for write killable
        prctl: make PR_SET_THP_DISABLE wait for mmap_sem killable
        exec: make exec path waiting for mmap_sem killable
        aio: make aio_setup_ring killable
        coredump: make coredump_wait wait for mmap_sem for write killable
        vdso: make arch_setup_additional_pages wait for mmap_sem for write killable
        ipc, shm: make shmem attach/detach wait for mmap_sem killable
        mm, fork: make dup_mmap wait for mmap_sem for write killable
        mm, proc: make clear_refs killable
        mm: make vm_brk killable
        mm, elf: handle vm_brk error
        mm, aout: handle vm_brk failures
        mm: make vm_munmap killable
        mm: make vm_mmap killable
        mm: make mmap_sem for write waits killable for mm syscalls
        MAINTAINERS: add co-maintainer for scripts/gdb
        ...
      84787c57