17 Dec, 2014

12 commits

  • Pull nfsd updates from Bruce Fields:
    "A comparatively quieter cycle for nfsd this time, but still with two
    larger changes:

    - RPC server scalability improvements from Jeff Layton (using RCU
    instead of a spinlock to find idle threads).

    - server-side NFSv4.2 ALLOCATE/DEALLOCATE support from Anna
    Schumaker, enabling fallocate on new clients"

    * 'for-3.19' of git://linux-nfs.org/~bfields/linux: (32 commits)
    nfsd4: fix xdr4 count of server in fs_location4
    nfsd4: fix xdr4 inclusion of escaped char
    sunrpc/cache: convert to use string_escape_str()
    sunrpc: only call test_bit once in svc_xprt_received
    fs: nfsd: Fix signedness bug in compare_blob
    sunrpc: add some tracepoints around enqueue and dequeue of svc_xprt
    sunrpc: convert to lockless lookup of queued server threads
    sunrpc: fix potential races in pool_stats collection
    sunrpc: add a rcu_head to svc_rqst and use kfree_rcu to free it
    sunrpc: require svc_create callers to pass in meaningful shutdown routine
    sunrpc: have svc_wake_up only deal with pool 0
    sunrpc: convert sp_task_pending flag to use atomic bitops
    sunrpc: move rq_cachetype field to better optimize space
    sunrpc: move rq_splice_ok flag into rq_flags
    sunrpc: move rq_dropme flag into rq_flags
    sunrpc: move rq_usedeferral flag to rq_flags
    sunrpc: move rq_local field to rq_flags
    sunrpc: add a generic rq_flags field to svc_rqst and move rq_secure to it
    nfsd: minor off by one checks in __write_versions()
    sunrpc: release svc_pool_map reference when serv allocation fails
    ...

    Linus Torvalds
     
  • Pull ARM SoC/iommu configuration update from Arnd Bergmann:
    "The iomm-config branch contains work from Will Deacon, quoting his
    description:

    This series adds automatic IOMMU and DMA-mapping configuration for
    OF-based DMA masters described using the generic IOMMU devicetree
    bindings. Although there is plenty of future work around splitting up
    iommu_ops, adding default IOMMU domains and sorting out automatic IOMMU
    group creation for the platform_bus, this is already useful enough for
    people to port over their IOMMU drivers and start using the new probing
    infrastructure (indeed, Marek has patches queued for the Exynos IOMMU).

    The branch touches core ARM and IOMMU driver files, and the respective
    maintainers (Russell King and Joerg Roedel) agreed to have the
    contents merged through the arm-soc tree.

    The final version was ready just before the merge window, so we ended
    up delaying it a bit longer than the rest, but we don't expect to see
    regressions because this is just additional infrastructure that will
    get used in drivers starting in 3.20 but is unused so far"

    * tag 'iommu-config-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
    iommu: store DT-probed IOMMU data privately
    arm: dma-mapping: plumb our iommu mapping ops into arch_setup_dma_ops
    arm: call iommu_init before of_platform_populate
    dma-mapping: detect and configure IOMMU in of_dma_configure
    iommu: fix initialization without 'add_device' callback
    iommu: provide helper function to configure an IOMMU for an of master
    iommu: add new iommu_ops callback for adding an OF device
    dma-mapping: replace set_arch_dma_coherent_ops with arch_setup_dma_ops
    iommu: provide early initialisation hook for IOMMU drivers

    Linus Torvalds
     
  • Pull ARM SoC DT updates part 2 from Arnd Bergmann:
    "This is a follow-up to the early ARM SoC DT changes, with additional
    content that has external dependencies:

    - The Tegra IOMMU DT support depends on changes from the iommu tree,
    plus the contents of the arm-soc drivers branch
    - The MVEBU PHY support depends on changes from the phy tree
    - The AT91 DT support depends on changes from the RTC and DMA-slave
    trees

    All of these changes just enable additional devices for existing
    platforms"

    * tag 'dt2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
    ARM: tegra: Enable IOMMU for display controllers on Tegra124
    ARM: tegra: Enable IOMMU for display controllers on Tegra114
    ARM: tegra: Enable IOMMU for display controllers on Tegra30
    ARM: tegra: Add memory controller support for Tegra124
    ARM: tegra: Add memory controller support for Tegra114
    ARM: tegra: Add memory controller support for Tegra30
    ARM: tegra: Add APB_MISC_GP as a MIPI pad control bank
    ARM: mvebu: add PHY support to the dts for the USB controllers on Armada 375
    ARM: mvebu: add Device Tree description of USB cluster controller on Armada 375
    ARM: at91/dt: at91sam9g45: add ISI node
    ARM: at91/dt: enable the RTT block on the at91sam9m10g45ek board
    ARM: at91/dt: enable the RTT block on the sam9g20ek board
    ARM: at91/dt: add GPBR nodes
    ARM: at91/dt: add RTT nodes to at91 dtsis
    ARM: at91/dt: at91sam9rl: add rtc
    ARM: at91: fix GPLv2 wording
    ARM: at91/dt: sama5d4: add DMA support
    ARM: at91/dt: sama5d4: use macro instead of numeric value

    Linus Torvalds
     
  • Pull ARM SoC fixes from Arnd Bergmann:
    "Here are the first arm-soc bug fixes. Most of these are OMAP related
    fixes for regressions or minor bugs. Aside from that, there are a few
    defconfig changes for various platforms"

    * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
    iommu/exynos: Fix arm64 allmodconfig build
    ARM: defconfigs: use CONFIG_CPUFREQ_DT
    ARM: omap2plus_defconfig: Enable AHCI_PLATFORM driver
    ARM: dts: am437x-sk-evm.dts: fix LCD timings
    ARM: dts: dra7-evm: Update SMPS7 (VDD_CORE) max voltage to match DM
    ARM: dts: dra7-evm: Fix typo in SMPS6 (VDD_GPU) max voltage
    ARM: OMAP2+: AM43x: Add ID for ES1.2
    ARM: dts: am437x-sk: fix lcd enable pin mux data
    ARM: dts: Fix gpmc regression for omap 2430sdp smc91x
    Revert "ARM: shmobile: multiplatform: add Audo DMAC peri peri support on defconfig"
    ARM: dts: dra7: fix DSS PLL clock mux registers
    ARM: dts: DRA7: wdt: Fix compatible property for watchdog node
    ARM: OMAP2+: clock: remove unused function prototype

    Linus Torvalds
     
  • Pull arm64 fixes from Will Deacon:
    "Given that my availability next week is likely to be poor, here are
    three arm64 fixes to resolve some issues introduced by features merged
    last week. I was going to wait until -rc1, but it doesn't make much
    sense to sit on fixes.

    Fix some fallout introduced during the merge window:

    - Build failure when PM_SLEEP is disabled but CPU_IDLE is enabled
    - Compiler warning from page table dumper w/ 48-bit VAs
    - Erroneous page table truncation in reported dump"

    * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
    arm64: mm: dump: don't skip final region
    arm64: mm: dump: fix shift warning
    arm64: psci: Fix build breakage without PM_SLEEP

    Linus Torvalds
     
  • Pull Xtensa fixes from Chris Zankel:
    - fix nommu support
    - remove s6000 variant and s6105 platform
    - fix permissions for kmapped pages so that copy_to_user_page works with them
    - add power management menu to Kconfig to allow use of runtime PM
    - disable linker optimizations because of a linker bug
    - fix sparse error

    * tag 'xtensa-next-20141215' of git://github.com/czankel/xtensa-linux:
    xtensa: disable link optimization
    xtensa/uaccess: fix sparse errors
    xtensa: fix kmap_prot definition
    xtensa: add power management menu to Kconfig
    xtensa: remove s6000 variant and s6105 platform
    xtensa: make PLATFORM_DEFAULT_MEM parameters configurable
    xtensa: nommu: clean up memory map dump
    xtensa: nommu: reserve memory below PLATFORM_DEFAULT_MEM_START
    xtensa: nommu: set up cache and atomctl in initialize_mmu
    xtensa: move vecbase SR initialization to _startup
    xtensa: nommu: fix uImage load address
    xtensa: nommu: fix load address definitions
    xtensa: nommu: fix Image.elf reset code and ld script
    xtensa: nommu: add MMU dependency to DEBUG_TLB_SANITY
    xtensa: nommu: don't build most of the cache flushing code
    xtensa: nommu: don't provide arch_get_unmapped_area
    xtensa: nommu: provide MAP_UNINITIALIZED definition
    xtensa: nommu: provide _PAGE_CHG_MASK definition
    xtensa: nommu: provide __invalidate_dcache_page_alias stub
    xtensa: nommu: move init_mmu stub to nommu_context.h

    Linus Torvalds
     
  • Pull arch/tile updates from Chris Metcalf:
    "Note that one of the changes converts my old cmetcalf@tilera.com email
    in MAINTAINERS to the cmetcalf@ezchip.com email that you see on this
    email"

    * git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
    arch/tile: update MAINTAINERS email to EZchip
    tile: avoid undefined behavior with regs[TREG_TP] etc
    arch: tile: kernel: kgdb.c: Use memcpy() instead of pointer copy one by one
    tile: Use the more common pr_warn instead of pr_warning
    arch: tile: gxio: Export symbols for module using in 'mpipe.c'
    arch: tile: kernel: signal.c: Use __copy_from/to_user() instead of __get/put_user()

    Linus Torvalds
     
  • Pull additional xen update from David Vrabel:
    "Xen: additional features for 3.19-rc0

    - Linear p2m for x86 PV guests which simplifies the p2m code,
    improves performance and will allow for > 512 GB PV guests in the
    future.

    A last-minute, configuration specific issue was discovered with this
    change which is why it was not included in my previous pull request.
    This is now been fixed and tested"

    * tag 'stable/for-linus-3.19-rc0b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
    xen: switch to post-init routines in xen mmu.c earlier
    Revert "swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single"
    xen: annotate xen_set_identity_and_remap_chunk() with __init
    xen: introduce helper functions to do safe read and write accesses
    xen: Speed up set_phys_to_machine() by using read-only mappings
    xen: switch to linear virtual mapped sparse p2m list
    xen: Hide get_phys_to_machine() to be able to tune common path
    x86: Introduce function to get pmd entry pointer
    xen: Delay invalidating extra memory
    xen: Delay m2p_override initialization
    xen: Delay remapping memory of pv-domain
    xen: use common page allocation function in p2m.c
    xen: Make functions static
    xen: fix some style issues in p2m.c

    Linus Torvalds
     
  • …l/git/shuah/linux-kselftest

    Pull kselftest update from Shuah Khan:
    "kselftest updates for 3.19-rc1:

    - kcmp test include file cleanup
    - kcmp change to build on all architectures
    - A light weight kselftest framework that provides a set of
    interfaces for tests to use to report results. In addition,
    several tests are updated to use the framework.
    - A new runtime system size test that prints the amount of RAM that
    the currently running system is using"

    * tag 'linux-kselftest-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
    selftest: size: Add size test for Linux kernel
    selftests/kcmp: Always try to build the test
    selftests/kcmp: Don't include kernel headers
    kcmp: Move kcmp.h into uapi
    selftests/timers: change test to use ksft framework
    selftests/kcmp: change test to use ksft framework
    selftests/ipc: change test to use ksft framework
    selftests/breakpoints: change test to use ksft framework
    selftests: add kselftest framework for uniform test reporting
    selftests/user: move test out of Makefile into a shell script
    selftests/net: move test out of Makefile into a shell script

    Linus Torvalds
     
  • Pull tracing updates from Steven Rostedt:
    "As the merge window is still open, and this code was not as complex as
    I thought it might be. I'm pushing this in now.

    This will allow Thomas to debug his irq work for 3.20.

    This adds two new features:

    1) Allow traceopoints to be enabled right after mm_init().

    By passing in the trace_event= kernel command line parameter,
    tracepoints can be enabled at boot up. For debugging things like
    the initialization of interrupts, it is needed to have tracepoints
    enabled very early. People have asked about this before and this
    has been on my todo list. As it can be helpful for Thomas to debug
    his upcoming 3.20 IRQ work, I'm pushing this now. This way he can
    add tracepoints into the IRQ set up and have users enable them when
    things go wrong.

    2) Have the tracepoints printed via printk() (the console) when they
    are triggered.

    If the irq code locks up or reboots the box, having the tracepoint
    output go into the kernel ring buffer is useless for debugging.
    But being able to add the tp_printk kernel command line option
    along with the trace_event= option will have these tracepoints
    printed as they occur, and that can be really useful for debugging
    early lock up or reboot problems.

    This code is not that intrusive and it passed all my tests. Thomas
    tried them out too and it works for his needs.

    Link: http://lkml.kernel.org/r/20141214201609.126831471@goodmis.org"

    * tag 'trace-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
    tracing: Add tp_printk cmdline to have tracepoints go to printk()
    tracing: Move enabling tracepoints to just after rcu_init()

    Linus Torvalds
     
  • …nux/kernel/git/horms/renesas into fixes

    Pull "Renesas ARM Based SoC Defconfig Fixes for v3.19" from Simon Horman:

    * Revert change enabling RCAR_AUDMAC_PP in shmobile_defconfig

    Unfortunately enabling RCAR_AUDMAC_PP support this patch breaks dmaengine
    support on R-Car Gen2 boards. This should be resolved by driver updates
    in v3.20. But v3.19 was too early for this defconfig change.

    * tag 'renesas-defconfig-fixes-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
    Revert "ARM: shmobile: multiplatform: add Audo DMAC peri peri support on defconfig"

    Signed-off-by: Arnd Bergmann <arnd@arndb.de>

    Arnd Bergmann
     
  • The Exynos IOMMU driver uses the ARM specific dmac_flush_range() and
    outer_flush_range() functions. This breaks the build on arm64 allmodconfig
    in -next since support has been merged for some Exynos ARMv8 SoCs. Add a
    dependency on ARM to keep things building until either the driver has the
    ARM dependencies removed or the ARMv8 architecture code implements these
    ARM specific APIs.

    Signed-off-by: Mark Brown
    Signed-off-by: Arnd Bergmann

    Mark Brown
     

16 Dec, 2014

18 commits

  • The default linker behavior is to optimize identical literal values
    and remove unnecessary overhead. However, because of a bug in the
    linker, this currently results in an error ('call target out of range').

    Disable link-time optimizations per default until there is a fix
    for the linker and add the option to iss_defconfig.

    Signed-off-by: Chris Zankel

    Chris Zankel
     
  • virtio wants to read bitwise types from userspace using get_user. At the
    moment this triggers sparse errors, since the value is passed through an
    integer.

    Fix that up using __force.

    Signed-off-by: Michael S. Tsirkin
    Signed-off-by: Chris Zankel

    Michael S. Tsirkin
     
  • Xtensa improvements for 3.19:

    - fix permissions for kmapped pages so that copy_to_user_page works with
    them;
    - add power management menu to Kconfig to allow use of runtime PM.

    Chris Zankel
     
  • Linux 3.18

    Chris Zankel
     
  • Pull LED subsystem update from Bryan Wu:
    "We got some cleanup and driver for LP8860 as well as some patches for
    LED Flash Class"

    * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
    leds: lp8860: Fix module dependency
    leds: lp8860: Introduce TI lp8860 4 channel LED driver
    leds: Add support for setting brightness in a synchronous way
    leds: implement sysfs interface locking mechanism
    leds: syscon: handle multiple syscon instances
    leds: delete copy/paste mistake
    leds: regulator: Convert to devm_regulator_get_exclusive

    Linus Torvalds
     
  • Pull staging driver updates from Greg KH:
    "Here's the big staging tree pull request for 3.19-rc1.

    We continued to delete more lines than were added, always a good
    thing, but not at a huge rate this release, only about 70k lines
    removed overall mostly from removing the horrid bcm driver.

    Lots of normal staging driver cleanups and fixes all over the place,
    well over a thousand of them, the shortlog shows all the horrid
    details.

    The "contentious" thing here is the movement of the Android binder
    code out of staging into the "real" part of the kernel. This is code
    that has been stable for a few years now and is working as-is in the
    tens of millions of devices with no issues. Yes, the code is horrid,
    and the userspace api leaves a lot to be desired, but it's not going
    to change due to legacy issues that we have no control over. Because
    so many devices and companies rely on this, and the code is stable,
    might as well promote it out of staging.

    This was all discussed at the Linux Plumbers conference, and everyone
    participating agreed that this was the best way forward.

    There is work happening to replace the binder code with something new
    that is happening right now, but I don't expect to see the results of
    that work for another year at the earliest. If that ever happens, and
    Android switches over to it, I'll gladly remove this version.

    As for maintainers, I'll be glad to maintain this code, I've been
    doing it for the past few years with no problems. I'll send a
    MAINTAINERS entry for it before 3.19-final is out, still need to talk
    to the Google developers about if they are willing to help with it or
    not, last I checked they were, which was good.

    All of these patches have been in linux-next for a while with no
    reported issues"

    * tag 'staging-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1382 commits)
    Staging: slicoss: Fix long line issues in slicoss.c
    staging: rtl8712: remove unnecessary else after return
    staging: comedi: change some printk calls to pr_err
    staging: rtl8723au: hal: Removed the extra semicolon
    lustre: Deletion of unnecessary checks before three function calls
    staging: lustre: fix sparse warnings: static function declaration
    staging: lustre: fixed sparse warnings related to static declarations
    staging: unisys: remove duplicate header
    staging: unisys: remove unneeded structure
    staging: ft1000 : replace __attribute ((__packed__) with __packed
    drivers: staging: rtl8192e: Include "asm/unaligned.h" instead of "access_ok.h" in "rtl819x_BAProc.c"
    Drivers:staging:rtl8192e: Fixed checkpatch warning
    Drivers:staging:clocking-wizard: Added a newline
    staging: clocking-wizard: check for a valid clk_name pointer
    staging: rtl8723au: Hal_InitPGData() avoid unnecessary typecasts
    staging: rtl8723au: _DisableAnalog(): Avoid zero-init variables unnecessarily
    staging: rtl8723au: Remove unnecessary wrapper _ResetDigitalProcedure1()
    staging: rtl8723au: _ResetDigitalProcedure1_92C() reduce code obfuscation
    staging: rtl8723au: Remove unnecessary wrapper _DisableRFAFEAndResetBB()
    staging: rtl8723au: _DisableRFAFEAndResetBB8192C(): Reduce code obfuscation
    ...

    Linus Torvalds
     
  • Pull firewire updates from Stefan Richter:
    "IEEE 1394 subsystem updates:
    - clean up firewire-ohci's longlived vm-mapping
    - use target instance lock instead of core lock in firewire-sbp2"

    * tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
    firewire: sbp2: replace card lock by target lock
    firewire: sbp2: replace some spin_lock_irqsave by spin_lock_irq
    firewire: sbp2: protect a reference counter properly
    firewire: core: document fw_csr_string's truncation of long strings
    firewire: ohci: replace vm_map_ram() with vmap()

    Linus Torvalds
     
  • Pull power supply updates from Sebastian Reichel::
    "Power supply and reset changes for the v3.19 series

    - update power/reset drivers to use kernel restart handler
    - add power off driver for i.mx6
    - add DT support for gpio-charger"

    * tag 'for-v3.19' of git://git.infradead.org/battery-2.6:
    power: reset: adjust priority of simple syscon reboot driver
    power: ds2782_battery: Simplify the PM hooks
    power/reset: brcmstb: Register with kernel restart handler
    power/reset: hisi: Register with kernel restart handler
    power/reset: keystone: Register with kernel restart handler
    power/reset: axxia: Register with kernel restart handler
    power/reset: xgene: Register with kernel restart handler
    power/reset: xgene: Use mdelay instead of jiffies based timeout
    power/reset: xgene: Use local variable dev instead of pdev->dev
    power/reset: xgene: Drop devm_kfree
    power/reset: xgene: Return -ENOMEM if out of memory
    power/reset: vexpress: Register with kernel restart handler
    power: reset: imx-snvs-poweroff: add power off driver for i.mx6
    power: gpio-charger: add device tree support
    dt-bindings: document gpio-charger bindings

    Linus Torvalds
     
  • Pull HSI update from Sebastian Reichel:
    "Misc fixes in omap-ssi and nokia-modem drivers"

    * tag 'hsi-for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
    HSI: nokia-modem: fix error handling of irq_of_parse_and_map
    HSI: nokia-modem: setup default value for pm parameter
    HSI: omap_ssi_port: Don't print uninitialized err
    HSI: remove deprecated IRQF_DISABLED

    Linus Torvalds
     
  • Pull irq domain ARM updates from Thomas Gleixner:
    "This set of changes make use of hierarchical irqdomains to provide:

    - MSI/ITS support for GICv3
    - MSI support for GICv2m
    - Interrupt polarity extender for GICv1

    Marc has come more cleanups for the existing extension hooks of GIC in
    the pipeline, but they are going to be 3.20 material"

    * 'irq-irqdomain-arm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
    irqchip: gicv3-its: Fix ITT allocation
    irqchip: gicv3-its: Move some alloc/free code to activate/deactivate
    irqchip: gicv3-its: Fix domain free in multi-MSI case
    irqchip: gic: Remove warning by including linux/irqdomain.h
    irqchip: gic-v2m: Add DT bindings for GICv2m
    irqchip: gic-v2m: Add support for ARM GICv2m MSI(-X) doorbell
    irqchip: mtk-sysirq: dt-bindings: Add bindings for mediatek sysirq
    irqchip: mtk-sysirq: Add sysirq interrupt polarity support
    irqchip: gic: Support hierarchy irq domain.
    irqchip: GICv3: Binding updates for ITS
    irqchip: GICv3: ITS: enable compilation of the ITS driver
    irqchip: GICv3: ITS: plug ITS init into main GICv3 code
    irqchip: GICv3: ITS: DT probing and initialization
    irqchip: GICv3: ITS: MSI support
    irqchip: GICv3: ITS: device allocation and configuration
    irqchip: GICv3: ITS: tables allocators
    irqchip: GICv3: ITS: LPI allocator
    irqchip: GICv3: ITS: irqchip implementation
    irqchip: GICv3: ITS command queue
    irqchip: GICv3: rework redistributor structure
    ...

    Linus Torvalds
     
  • Pull core block fix from Jens Axboe:
    "Jan reported a problem this morning with a crash in blk-mq, and after
    looking over the recent changes, it's obvious that the blk-mq-tag
    waitqueue handling change is buggy. We could end up _not_ doing
    finish_wait() before switching to a new waitqueue, thus corrupting the
    wait task list"

    * 'for-linus' of git://git.kernel.dk/linux-block:
    Revert "blk-mq: Micro-optimize bt_get()"

    Linus Torvalds
     
  • Pull rpmsg update from Ohad Ben-Cohen:
    "A single patch from Suman Anna which makes rpmsg use less buffers when
    small vrings are being used"

    * tag 'rpmsg-3.19-next' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg:
    rpmsg: use less buffers when vrings are small

    Linus Torvalds
     
  • Pull drm updates from Dave Airlie:
    "Highlights:

    - AMD KFD driver merge

    This is the AMD HSA interface for exposing a lowlevel interface for
    GPGPU use. They have an open source userspace built on top of this
    interface, and the code looks as good as it was going to get out of
    tree.

    - Initial atomic modesetting work

    The need for an atomic modesetting interface to allow userspace to
    try and send a complete set of modesetting state to the driver has
    arisen, and been suffering from neglect this past year. No more,
    the start of the common code and changes for msm driver to use it
    are in this tree. Ongoing work to get the userspace ioctl finished
    and the code clean will probably wait until next kernel.

    - DisplayID 1.3 and tiled monitor exposed to userspace.

    Tiled monitor property is now exposed for userspace to make use of.

    - Rockchip drm driver merged.

    - imx gpu driver moved out of staging

    Other stuff:

    - core:
    panel - MIPI DSI + new panels.
    expose suggested x/y properties for virtual GPUs

    - i915:
    Initial Skylake (SKL) support
    gen3/4 reset work
    start of dri1/ums removal
    infoframe tracking
    fixes for lots of things.

    - nouveau:
    tegra k1 voltage support
    GM204 modesetting support
    GT21x memory reclocking work

    - radeon:
    CI dpm fixes
    GPUVM improvements
    Initial DPM fan control

    - rcar-du:
    HDMI support added
    removed some support for old boards
    slave encoder driver for Analog Devices adv7511

    - exynos:
    Exynos4415 SoC support

    - msm:
    a4xx gpu support
    atomic helper conversion

    - tegra:
    iommu support
    universal plane support
    ganged-mode DSI support

    - sti:
    HDMI i2c improvements

    - vmwgfx:
    some late fixes.

    - qxl:
    use suggested x/y properties"

    * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (969 commits)
    drm: sti: fix module compilation issue
    drm/i915: save/restore GMBUS freq across suspend/resume on gen4
    drm: sti: correctly cleanup CRTC and planes
    drm: sti: add HQVDP plane
    drm: sti: add cursor plane
    drm: sti: enable auxiliary CRTC
    drm: sti: fix delay in VTG programming
    drm: sti: prepare sti_tvout to support auxiliary crtc
    drm: sti: use drm_crtc_vblank_{on/off} instead of drm_vblank_{on/off}
    drm: sti: fix hdmi avi infoframe
    drm: sti: remove event lock while disabling vblank
    drm: sti: simplify gdp code
    drm: sti: clear all mixer control
    drm: sti: remove gpio for HDMI hot plug detection
    drm: sti: allow to change hdmi ddc i2c adapter
    drm/doc: Document drm_add_modes_noedid() usage
    drm/i915: Remove '& 0xffff' from the mask given to WA_REG()
    drm/i915: Invert the mask and val arguments in wa_add() and WA_REG()
    drm: Zero out DRM object memory upon cleanup
    drm/i915/bdw: Fix the write setting up the WIZ hashing mode
    ...

    Linus Torvalds
     
  • The VM_FAULT_RETRY handling was confusing and incorrect for the case of
    returning to kernel mode. We need to handle the exception table fixup
    if we return to kernel mode due to a fatal signal - it will basically
    look to the kernel user mode access like the access failed due to the VM
    going away from udner it. Which is correct - the process is dying - and
    avoids the whole "repeat endless kernel page faults" case.

    Handling the VM_FAULT_RETRY early and in just one place also simplifies
    the mmap_sem handling, since once we've taken care of VM_FAULT_RETRY we
    know that we can just drop the lock. The remaining accounting and
    possible error handling is thread-local and does not need the mmap_sem.

    Signed-off-by: Linus Torvalds

    Linus Torvalds
     
  • This replaces four copies in various stages of mm_fault_error() handling
    with just a single one. It will also allow for more natural placement
    of the unlocking after some further cleanup.

    Signed-off-by: Linus Torvalds

    Linus Torvalds
     
  • …m/linux/kernel/git/tmlind/linux-omap into fixes

    From: Tony Lindgren <tony@atomide.com>
    Subject: [GIT PULL] few fixes for the v3.19 merge window

    Fixes for a few issues found that would be good to get
    into -rc1:

    - Update SoC revision detection for am43x es1.2

    - Fix regression with GPMC timings on 2430sdp for some versions
    of u-boot

    - Fix dra7 watchdog compatible property

    - Fix am437x-sk-evm LCD timings

    - Fix dra7 DSS clock muxing

    - Fix dra7-evm voltages

    - Remove a unused function prototype for am33xx_clk_init

    - Enable AHCI in the omap2plus_defconfig

    * tag 'omap-for-v3.19/fixes-for-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (1601 commits)
    ARM: omap2plus_defconfig: Enable AHCI_PLATFORM driver
    ARM: dts: am437x-sk-evm.dts: fix LCD timings
    ARM: dts: dra7-evm: Update SMPS7 (VDD_CORE) max voltage to match DM
    ARM: dts: dra7-evm: Fix typo in SMPS6 (VDD_GPU) max voltage
    ARM: OMAP2+: AM43x: Add ID for ES1.2
    ARM: dts: am437x-sk: fix lcd enable pin mux data
    ARM: dts: Fix gpmc regression for omap 2430sdp smc91x
    hwmon: (tmp401) Detect TMP435 on all addresses it supports
    mfd: rtsx: Add func to split u32 into register
    mmc: sdhci-msm: Convert to mmc_send_tuning()
    mmc: sdhci-esdhc-imx: Convert to mmc_send_tuning()
    mmc: core: Let mmc_send_tuning() to take struct mmc_host* as parameter
    nios2: Make NIOS2_CMDLINE_IGNORE_DTB depend on CMDLINE_BOOL
    nios2: Add missing NR_CPUS to Kconfig
    nios2: asm-offsets: Remove unused definition TI_TASK
    nios2: Remove write-only struct member from nios2_timer
    nios2: Remove unused extern declaration of shm_align_mask
    nios2: include linux/type.h in io.h
    nios2: move include asm-generic/io.h to end of file
    nios2: remove include asm-generic/iomap.h from io.h
    ...

    Kevin Hilman
     
  • CONFIG_GENERIC_CPUFREQ_CPU0 disappeared with commit bbcf071969b20f
    ("cpufreq: cpu0: rename driver and internals to 'cpufreq_dt'") and some
    defconfigs are still using it instead of the new one.

    Use the renamed CONFIG_CPUFREQ_DT generic driver.

    Cc: # 3.18
    Reported-by: Nishanth Menon
    Signed-off-by: Viresh Kumar
    Signed-off-by: Kevin Hilman

    Viresh Kumar
     
  • David Vrabel
     

15 Dec, 2014

10 commits

  • This reverts commit 52f7eb945f2ba62b324bb9ae16d945326a961dcf.

    The optimization is only really safe for a single queue, otherwise
    'bs' and 'bt' can indeed change, and if we don't do a finish_wait()
    for each loop, we'll potentially change the wait structure and
    corrupt task wait list.

    Reported-by: Jan Kara

    Jens Axboe
     
  • Add the kernel command line tp_printk option that will have tracepoints
    that are active sent to printk() as well as to the trace buffer.

    Passing "tp_printk" will activate this. To turn it off, the sysctl
    /proc/sys/kernel/tracepoint_printk can have '0' echoed into it. Note,
    this only works if the cmdline option is used. Echoing 1 into the sysctl
    file without the cmdline option will have no affect.

    Note, this is a dangerous option. Having high frequency tracepoints send
    their data to printk() can possibly cause a live lock. This is another
    reason why this is only active if the command line option is used.

    Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1412121539300.16494@nanos

    Suggested-by: Thomas Gleixner
    Tested-by: Thomas Gleixner
    Acked-by: Thomas Gleixner
    Signed-off-by: Steven Rostedt

    Steven Rostedt (Red Hat)
     
  • Enabling tracepoints at boot up can be very useful. The tracepoint
    can be initialized right after RCU has been. There's no need to
    wait for the early_initcall() to be called. That's too late for some
    things that can use tracepoints for debugging. Move the logic to
    enable tracepoints out of the initcalls and into init/main.c to
    right after rcu_init().

    This also allows trace_printk() to be used early too.

    Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1412121539300.16494@nanos
    Link: http://lkml.kernel.org/r/20141214164104.307127356@goodmis.org

    Reviewed-by: Paul E. McKenney
    Suggested-by: Thomas Gleixner
    Tested-by: Thomas Gleixner
    Acked-by: Thomas Gleixner
    Signed-off-by: Steven Rostedt

    Steven Rostedt (Red Hat)
     
  • When compiling in module some symbol aren't missing,
    export them correctly.

    Signed-off-by: Benjamin Gaignard
    Signed-off-by: Dave Airlie

    benjamin.gaignard@linaro.org
     
  • Pull security layer updates from James Morris:
    "In terms of changes, there's general maintenance to the Smack,
    SELinux, and integrity code.

    The IMA code adds a new kconfig option, IMA_APPRAISE_SIGNED_INIT,
    which allows IMA appraisal to require signatures. Support for reading
    keys from rootfs before init is call is also added"

    * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (23 commits)
    selinux: Remove security_ops extern
    security: smack: fix out-of-bounds access in smk_parse_smack()
    VFS: refactor vfs_read()
    ima: require signature based appraisal
    integrity: provide a hook to load keys when rootfs is ready
    ima: load x509 certificate from the kernel
    integrity: provide a function to load x509 certificate from the kernel
    integrity: define a new function integrity_read_file()
    Security: smack: replace kzalloc with kmem_cache for inode_smack
    Smack: Lock mode for the floor and hat labels
    ima: added support for new kernel cmdline parameter ima_template_fmt
    ima: allocate field pointers array on demand in template_desc_init_fields()
    ima: don't allocate a copy of template_fmt in template_desc_init_fields()
    ima: display template format in meas. list if template name length is zero
    ima: added error messages to template-related functions
    ima: use atomic bit operations to protect policy update interface
    ima: ignore empty and with whitespaces policy lines
    ima: no need to allocate entry for comment
    ima: report policy load status
    ima: use path names cache
    ...

    Linus Torvalds
     
  • Pull char/misc driver updates from Greg KH:
    "Here's the big char/misc driver update for 3.19-rc1

    Lots of little things all over the place in different drivers, and a
    new subsystem, "coresight" has been added. Full details are in the
    shortlog"

    * tag 'char-misc-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (73 commits)
    parport: parport_pc, do not remove parent devices early
    spmi: Remove shutdown/suspend/resume kernel-doc
    carma-fpga-program: drop videobuf dependency
    carma-fpga: drop videobuf dependency
    carma-fpga-program.c: fix compile errors
    i8k: Fix temperature bug handling in i8k_get_temp()
    cxl: Name interrupts in /proc/interrupt
    CXL: Return error to PSL if IRQ demultiplexing fails & print clearer warning
    coresight-replicator: remove .owner field for driver
    coresight: fixed comments in coresight.h
    coresight: fix typo in comment in coresight-priv.h
    coresight: bindings for coresight drivers
    coresight: Adding ABI documentation
    w1: support auto-load of w1_bq27000 module.
    w1: avoid potential u16 overflow
    cn: verify msg->len before making callback
    mei: export fw status registers through sysfs
    mei: read and print all six FW status registers
    mei: txe: add cherrytrail device id
    mei: kill cached host and me csr values
    ...

    Linus Torvalds
     
  • Pull driver core update from Greg KH:
    "Here's the set of driver core patches for 3.19-rc1.

    They are dominated by the removal of the .owner field in platform
    drivers. They touch a lot of files, but they are "simple" changes,
    just removing a line in a structure.

    Other than that, a few minor driver core and debugfs changes. There
    are some ath9k patches coming in through this tree that have been
    acked by the wireless maintainers as they relied on the debugfs
    changes.

    Everything has been in linux-next for a while"

    * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
    Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
    fs: debugfs: add forward declaration for struct device type
    firmware class: Deletion of an unnecessary check before the function call "vunmap"
    firmware loader: fix hung task warning dump
    devcoredump: provide a one-way disable function
    device: Add dev__once variants
    ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
    ath: use seq_file api for ath9k debugfs files
    debugfs: add helper function to create device related seq_file
    drivers/base: cacheinfo: remove noisy error boot message
    Revert "core: platform: add warning if driver has no owner"
    drivers: base: support cpu cache information interface to userspace via sysfs
    drivers: base: add cpu_device_create to support per-cpu devices
    topology: replace custom attribute macros with standard DEVICE_ATTR*
    cpumask: factor out show_cpumap into separate helper function
    driver core: Fix unbalanced device reference in drivers_probe
    driver core: fix race with userland in device_add()
    sysfs/kernfs: make read requests on pre-alloc files use the buffer.
    sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
    fs: sysfs: return EGBIG on write if offset is larger than file size
    ...

    Linus Torvalds
     
  • Pull tty/serial driver updates from Greg KH:
    "Here's the big tty/serial driver update for 3.19-rc1.

    There are a number of TTY core changes/fixes in here from Peter Hurley
    that have all been teted in linux-next for a long time now. There are
    also the normal serial driver updates as well, full details in the
    changelog below"

    * tag 'tty-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (219 commits)
    serial: pxa: hold port.lock when reporting modem line changes
    tty-hvsi_lib: Deletion of an unnecessary check before the function call "tty_kref_put"
    tty: Deletion of unnecessary checks before two function calls
    n_tty: Fix read_buf race condition, increment read_head after pushing data
    serial: of-serial: add PM suspend/resume support
    Revert "serial: of-serial: add PM suspend/resume support"
    Revert "serial: of-serial: fix up PM ops on no_console_suspend and port type"
    serial: 8250: don't attempt a trylock if in sysrq
    serial: core: Add big-endian iotype
    serial: samsung: use port->fifosize instead of hardcoded values
    serial: samsung: prefer to use fifosize from driver data
    serial: samsung: fix style problems
    serial: samsung: wait for transfer completion before clock disable
    serial: icom: fix error return code
    serial: tegra: clean up tty-flag assignments
    serial: Fix io address assign flow with Fintek PCI-to-UART Product
    serial: mxs-auart: fix tx_empty against shift register
    serial: mxs-auart: fix gpio change detection on interrupt
    serial: mxs-auart: Fix mxs_auart_set_ldisc()
    serial: 8250_dw: Use 64-bit access for OCTEON.
    ...

    Linus Torvalds
     
  • Pull USB updates from Greg KH:
    "Here's the big set of USB and PHY patches for 3.19-rc1.

    The normal churn in the USB gadget area is in here, as well as xhci
    and other individual USB driver updates. The PHY tree is also in
    here, as there were dependancies on the USB tree.

    All of these have been in linux-next"

    * tag 'usb-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (351 commits)
    arm: omap3: twl: remove usb phy init data
    usbip: fix error handling in stub_probe()
    usb: gadget: udc: missing curly braces
    USB: mos7720: delete some unneeded code
    wusb: replace memset by memzero_explicit
    usbip: remove unneeded structure
    usb: xhci: fix comment for PORT_DEV_REMOVE
    xhci: don't use the same variable for stopped and halted rings current TD
    xhci: clear extra bits from slot context when setting max exit latency
    xhci: cleanup finish_td function
    USB: adutux: NULL dereferences on disconnect
    usb: chipidea: fix platform_no_drv_owner.cocci warnings
    usb: chipidea: Fixed a few typos in comments
    Documentation: bindings: add doc for the USB2 ChipIdea USB driver
    usb: chipidea: add a usb2 driver for ci13xxx
    usb: chipidea: fix phy handling
    usb: chipidea: remove duplicate dev_set_drvdata for host_start
    usb: chipidea: parameter 'mode' isn't needed for hw_device_reset
    usb: chipidea: add controller reset API
    usb: chipidea: remove flag CI_HDRC_REQUIRE_TRANSCEIVER
    ...

    Linus Torvalds
     
  • Pull squashfs update from Phillip Lougher:
    "These patches optionally add LZ4 compression support to Squashfs.

    LZ4 is a lightweight compression algorithm which can be used on
    embedded systems to reduce CPU and memory overhead (in comparison to
    the standard zlib compression).

    These patches add the wrapper code to allow Squashfs to use the
    existing LZ4 decompression code, and the necessary configuration
    option"

    * tag 'squashfs-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next:
    Squashfs: Add LZ4 compression configuration option
    Squashfs: add LZ4 compression support

    Linus Torvalds