12 Apr, 2016

20 commits

  • The driver has a limit of eight LUs because of the byte-sized bitfield
    that is used for busy flags. That means the maximum LUN is 7. The default
    is 8.

    Signed-off-by: Finn Thain
    Tested-by: Michael Schmitz
    Tested-by: Ondrej Zary
    Reviewed-by: Hannes Reinecke
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • Now that atari_scsi and sun3_scsi have been converted to use the NCR5380.c
    core driver, remove atari_NCR5380.c. Also remove the last vestiges of its
    Tagged Command Queueing implementation from the wrapper drivers.

    The TCQ support in atari_NCR5380.c is abandoned by this patch. It is not
    merged into the remaining core driver because,

    1) atari_scsi defines SUPPORT_TAGS but leaves FLAG_TAGGED_QUEUING disabled
    by default, which indicates that it is mostly undesirable.

    2) I'm told that it doesn't work correctly when enabled.

    3) The algorithm does not make use of block layer tags which it will have
    to do because scmd->tag is deprecated.

    4) sun3_scsi doesn't define SUPPORT_TAGS at all, yet the the SUPPORT_TAGS
    macro interacts with the CONFIG_SUN3 macro in 'interesting' ways.

    5) Compile-time configuration with macros like SUPPORT_TAGS caused the
    configuration space to explode, leading to untestable and unmaintainable
    code that is too hard to reason about.

    The merge_contiguous_buffers() code is also abandoned. This was unused
    by sun3_scsi. Only atari_scsi used it and then only on TT, because only TT
    supports scatter/gather. I suspect that the TT would work fine with
    ENABLE_CLUSTERING instead. If someone can benchmark the difference then
    perhaps the merge_contiguous_buffers() code can be be justified. Until
    then we are better off without the extra complexity.

    Signed-off-by: Finn Thain
    Reviewed-by: Hannes Reinecke
    Tested-by: Michael Schmitz
    Tested-by: Ondrej Zary
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • Add support for the custom Sun 3 DMA logic to the NCR5380.c core driver.
    This code is copied from atari_NCR5380.c.

    Signed-off-by: Finn Thain
    Reviewed-by: Hannes Reinecke
    Tested-by: Michael Schmitz
    Tested-by: Ondrej Zary
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • Add support for the Atari ST DMA chip to the NCR5380.c core driver.
    This code is copied from atari_NCR5380.c.

    Signed-off-by: Finn Thain
    Reviewed-by: Hannes Reinecke
    Tested-by: Michael Schmitz
    Tested-by: Ondrej Zary
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • Adopt the DMA implementation from atari_NCR5380.c. This means that
    atari_scsi and sun3_scsi can make use of the NCR5380.c core driver
    and the atari_NCR5380.c driver fork can be made redundant.

    Signed-off-by: Finn Thain
    Reviewed-by: Hannes Reinecke
    Tested-by: Michael Schmitz
    Tested-by: Ondrej Zary
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • Standardize the DMA setup hooks so that the DMA implementation in
    atari_NCR5380.c can be reconciled with pseudo DMA implementation in
    NCR5380.c.

    Calls to NCR5380_dma_recv_setup() and NCR5380_dma_send_setup() return
    a negative value on failure, zero on PDMA transfer success and a positive
    byte count for DMA setup success.

    This convention is not entirely new, but is now applied consistently.

    Also remove a pointless Status Register access: the *phase assignment is
    redundant because after NCR5380_transfer_dma() returns control to
    NCR5380_information_transfer(), that routine then returns control
    to NCR5380_main(), which means *phase is dead.

    Signed-off-by: Finn Thain
    Reviewed-by: Hannes Reinecke
    Tested-by: Michael Schmitz
    Tested-by: Ondrej Zary
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • Those wrapper drivers which use DMA define the REAL_DMA macro and
    those which use pseudo DMA define PSEUDO_DMA. These macros need to be
    removed for a number of reasons, not least of which is to have drivers
    share more code.

    Redefine the PDMA send and receive hooks as DMA setup hooks, so that the
    DMA code can be shared by all 5380 wrapper drivers. This will help to
    reunify the forked core driver.

    Signed-off-by: Finn Thain
    Reviewed-by: Hannes Reinecke
    Tested-by: Michael Schmitz
    Tested-by: Ondrej Zary
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • The io_recovery_delay macro is intended to insert a microsecond delay
    between the chip register accesses that begin a DMA operation. This
    is reportedly needed for some ISA boards.

    Reverse the sense of the macro test so that in the common case,
    where no delay is required, drivers need not define the macro.

    Signed-off-by: Finn Thain
    Reviewed-by: Hannes Reinecke
    Tested-by: Michael Schmitz
    Tested-by: Ondrej Zary
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • For those wrapper drivers which only implement Programmed IO, have
    NCR5380_dma_xfer_len() evaluate to zero. That allows PDMA to be easily
    disabled at run-time and so the PSEUDO_DMA macro is no longer needed.

    Also remove the spin counters used for debugging pseudo DMA drivers.

    Signed-off-by: Finn Thain
    Reviewed-by: Hannes Reinecke
    Tested-by: Michael Schmitz
    Tested-by: Ondrej Zary
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • The only chip that needs the workarounds enabled is an early NMOS
    device. That means that the common case is to disable them.

    Unfortunately the sense of the flag is such that it has to be set
    for the common case.

    Rename the flag so that zero can be used to mean "no errata workarounds
    needed". This simplifies the code.

    Signed-off-by: Finn Thain
    Reviewed-by: Hannes Reinecke
    Tested-by: Michael Schmitz
    Tested-by: Ondrej Zary
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • Only the atari_scsi and sun3_scsi drivers define DMA_MIN_SIZE.
    Both drivers also define NCR5380_dma_xfer_len, which means
    DMA_MIN_SIZE can be removed from the core driver.

    This removes another discrepancy between the two core drivers.

    Signed-off-by: Finn Thain
    Tested-by: Michael Schmitz
    Reviewed-by: Hannes Reinecke
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • For the NCR5380.c core driver, these macros are never used.
    If REAL_DMA were to be defined, compilation would fail.

    For the atari_NCR5380.c core driver, REAL_DMA is always defined.

    Hence these macros are pointless.

    Signed-off-by: Finn Thain
    Reviewed-by: Hannes Reinecke
    Tested-by: Michael Schmitz
    Tested-by: Ondrej Zary
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • Drivers that define PSEUDO_DMA also define NCR5380_dma_xfer_len.
    The core driver must call NCR5380_dma_xfer_len which means
    FLAG_NO_PSEUDO_DMA can be eradicated from the core driver.

    dmx3191d doesn't define PSEUDO_DMA and has no use for FLAG_NO_PSEUDO_DMA,
    so remove it there also.

    Signed-off-by: Finn Thain
    Reviewed-by: Hannes Reinecke
    Tested-by: Michael Schmitz
    Tested-by: Ondrej Zary
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • This change brings a number of improvements: fewer macros, better test
    coverage, simpler code and sane Kconfig options. The downside is a small
    chance of incompatibility (which seems unavoidable).

    CONFIG_SCSI_GENERIC_NCR53C400 exists to enable or inhibit pseudo DMA
    transfers when the driver is used with 53C400-compatible cards. Thanks to
    Ondrej Zary's patches, PDMA now works which means it can be enabled
    unconditionally.

    Due to bad design, CONFIG_SCSI_GENERIC_NCR53C400 ties together unrelated
    functionality as it sets both PSEUDO_DMA and BIOSPARAM macros. This patch
    effectively enables PSEUDO_DMA and disables BIOSPARAM.

    The defconfigs and the Kconfig default leave CONFIG_SCSI_GENERIC_NCR53C400
    undefined. Red Hat 9 and CentOS 2.1 were the same. This leaves both
    PSEUDO_DMA and BIOSPARAM disabled. The effect of this patch should be
    better performance from enabling PSEUDO_DMA.

    On the other hand, Debian 4 and SLES 10 had CONFIG_SCSI_GENERIC_NCR53C400
    enabled, so both PSEUDO_DMA and BIOSPARAM were enabled. This patch might
    affect configurations like this by disabling BIOSPARAM. My best guess is
    that this could be a problem only in the vanishingly rare case that
    1) the CHS values stored in the boot device partition table are wrong and
    2) a 5380 card is in use (because PDMA on 53C400 used to be broken).

    Signed-off-by: Finn Thain
    Reviewed-by: Hannes Reinecke
    Tested-by: Ondrej Zary
    Signed-off-by: Martin K. Petersen

    Finn Thain
     
  • On 64 bit, struct error_info has 6 bytes of padding, which amounts to
    over 4k of wasted space in the additional[] array. We could easily get
    rid of that by instead using separate arrays for the codes and the
    pointers. However, we can do even better than that and save an
    additional 6 bytes per entry: In the table, just store the sizeof()
    the corresponding string literal. The cumulative sum of these is then
    the appropriate offset into additional_text, which is built from the
    concatenation (with '\0's inbetween) of the strings.

    $ scripts/bloat-o-meter /tmp/vmlinux vmlinux
    add/remove: 0/0 grow/shrink: 1/1 up/down: 24/-8488 (-8464)
    function old new delta
    scsi_extd_sense_format 136 160 +24
    additional 11312 2824 -8488

    The Kconfig help text used to say that CONFIG_SCSI_CONSTANTS=y costs
    around 75 KB, but that was a little exaggerated. The actual number was
    closer to 44K, and 36K with this patch.

    Signed-off-by: Rasmus Villemoes
    Reviewed-by: Hannes Reinecke
    Tested-by: Douglas Gilbert
    Reviewed-by: Christoph Hellwig
    Signed-off-by: Martin K. Petersen

    Rasmus Villemoes
     
  • This is a purely mechanical move of the list of additional sense codes
    to a separate file, in preparation for reducing the impact of choosing
    CONFIG_SCSI_CONSTANTS=y by about 8k.

    Signed-off-by: Rasmus Villemoes
    Reviewed-by: Hannes Reinecke
    Reviewed-by: Christoph Hellwig
    Signed-off-by: Martin K. Petersen

    Rasmus Villemoes
     
  • There's little point in breaking these strings over multiple lines.

    Signed-off-by: Rasmus Villemoes
    Reviewed-by: Hannes Reinecke
    Reviewed-by: Christoph Hellwig
    Signed-off-by: Martin K. Petersen

    Rasmus Villemoes
     
  • Pull HID fixes from Jiri Kosina:

    - fix for how scaling linearization is computed in wiimote driver, by
    Cyan Ogilvie

    - endless retry loop fix in generic USB HID core reset-resume handling,
    by Alan Stern

    - two functional fixes affecting particular devices, and oops fix for
    wacom driver, by Jason Gerecke

    - multitouch slot numbering fix from Gabriele Mazzotta

    - a couple more small fixes on top

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
    HID: wacom: Support switching from vendor-defined device mode on G9 and G11
    HID: wacom: Initialize hid_data.inputmode to -1
    HID: microsoft: add support for 3 more devices
    HID: multitouch: Synchronize MT frame on reset_resume
    HID: wacom: fix Bamboo ONE oops
    HID: lenovo: Don't use stack variables for DMA buffers
    HID: usbhid: fix inconsistent reset/resume/reset-resume behavior
    HID: wiimote: Fix wiimote mp scale linearization

    Linus Torvalds
     
  • Pull m68k update from Geert Uytterhoeven.

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
    m68k/defconfig: Update defconfigs for v4.6-rc2
    m68k: Wire up preadv2 and pwritev2

    Linus Torvalds
     
  • Pull ARC fixes from Vineet Gupta:
    - fix Kconfig splat due to pcie rework
    - make ethernet work again on axs103
    - provide fb_pgprotect() for future video driver integration

    * tag 'arc-4.6-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
    ARC: [plat-axs103] Enable loop block devices
    Revert "ARC: [plat-axs10x] add Ethernet PHY description in .dts"
    arc: Add our own implementation of fb_pgprotect()
    ARC: Don't source drivers/pci/pcie/Kconfig ourselves

    Linus Torvalds
     

11 Apr, 2016

5 commits

  • Linus Torvalds
     
  • Pull ARM fixes from Russell King:
    "A couple of small fixes, and wiring up the new syscalls which appeared
    during the merge window"

    * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
    ARM: 8550/1: protect idiv patching against undefined gcc behavior
    ARM: wire up preadv2 and pwritev2 syscalls
    ARM: SMP enable of cache maintanence broadcast

    Linus Torvalds
     
  • Pull MMC fixes from Ulf Hansson:
    "Here are a couple of mmc fixes intended for v4.6 rc3:

    MMC host:
    - sdhci: Fix regression setting power on Trats2 board
    - sdhci-pci: Add support and PCI IDs for more Broxton host controllers"

    * tag 'mmc-v4.6-rc1' of git://git.linaro.org/people/ulf.hansson/mmc:
    mmc: sdhci-pci: Add support and PCI IDs for more Broxton host controllers
    mmc: sdhci: Fix regression setting power on Trats2 board

    Linus Torvalds
     
  • Pull i2c fixes from Wolfram Sang:
    "Some bugfixes from I2C:

    - fix a uevent triggered boot problem by removing a useless debug
    print

    - fix sysfs-attributes of the new i2c-demux-pinctrl driver to follow
    standard kernel behaviour

    - fix a potential division-by-zero error (needed two takes)"

    * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
    i2c: jz4780: really prevent potential division by zero
    Revert "i2c: jz4780: prevent potential division by zero"
    i2c: jz4780: prevent potential division by zero
    i2c: mux: demux-pinctrl: Update docs to new sysfs-attributes
    i2c: mux: demux-pinctrl: Clean up sysfs attributes
    i2c: prevent endless uevent loop with CONFIG_I2C_DEBUG_CORE

    Linus Torvalds
     
  • This reverts commit 1028b55bafb7611dda1d8fed2aeca16a436b7dff.

    It's broken: it makes ext4 return an error at an invalid point, causing
    the readdir wrappers to write the the position of the last successful
    directory entry into the position field, which means that the next
    readdir will now return that last successful entry _again_.

    You can only return fatal errors (that terminate the readdir directory
    walk) from within the filesystem readdir functions, the "normal" errors
    (that happen when the readdir buffer fills up, for example) happen in
    the iterorator where we know the position of the actual failing entry.

    I do have a very different patch that does the "signal_pending()"
    handling inside the iterator function where it is allowable, but while
    that one passes all the sanity checks, I screwed up something like four
    times while emailing it out, so I'm not going to commit it today.

    So my track record is not good enough, and the stars will have to align
    better before that one gets committed. And it would be good to get some
    review too, of course, since celestial alignments are always an iffy
    debugging model.

    IOW, let's just revert the commit that caused the problem for now.

    Reported-by: Greg Thelen
    Cc: Theodore Ts'o
    Signed-off-by: Linus Torvalds

    Linus Torvalds
     

10 Apr, 2016

13 commits

  • Pull parisc fixes from Helge Deller:
    "Since commit 0de798584bde ("parisc: Use generic extable search and
    sort routines") module loading is boken on parisc, because the parisc
    module loader wasn't prepared for the new R_PARISC_PCREL32 relocations.

    In addition, due to that breakage, Mikulas Patocka noticed that
    handling exceptions from modules probably never worked on parisc. It
    was just masked by the fact that exceptions from modules don't happen
    during normal use.

    This patch series fixes those issues and survives the tests of the
    lib/test_user_copy kernel module test. Some patches are tagged for
    stable"

    * 'parisc-4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
    parisc: Update comment regarding relative extable support
    parisc: Unbreak handling exceptions from kernel modules
    parisc: Fix kernel crash with reversed copy_from_user()
    parisc: Avoid function pointers for kernel exception routines
    parisc: Handle R_PARISC_PCREL32 relocations in kernel modules

    Linus Torvalds
     
  • Pull libnvdimm fixes from Dan Williams:
    "Three fixes, the first two are tagged for -stable:

    - The ndctl utility/library gained expanded unit tests illuminating a
    long standing bug in the libnvdimm SMART data retrieval
    implementation.

    It has been broken since its initial implementation, now fixed.

    - Another one line fix for the detection of stale info blocks.

    Without this change userspace can get into a situation where it is
    unable to reconfigure a namespace.

    - Fix the badblock initialization path in the presence of the new (in
    v4.6-rc1) section alignment workarounds.

    Without this change badblocks will be reported at the wrong offset.

    These have received a build success report from the kbuild robot and
    have appeared in -next with no reported issues"

    * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
    libnvdimm, pfn: fix nvdimm_namespace_add_poison() vs section alignment
    libnvdimm, pfn: fix uuid validation
    libnvdimm: fix smart data retrieval

    Linus Torvalds
     
  • Pull GPIO fixes from Linus Walleij:
    "Here is a set of four GPIO fixes. The two fixes to the core are
    serious as they are regressing minor architectures.

    Core fixes:

    - Defer GPIO device setup until after gpiolib is initialized.

    It turns out that a few very tightly integrated GPIO platform
    drivers initialize so early (befor core_initcall()) so that the
    gpiolib isn't even initialized itself. That limits what the
    library can do, and we cannot reference uninitialized fields until
    later.

    Defer some of the initialization until right after the gpiolib is
    initialized in these (rare) cases.

    - As a consequence: do not use devm_* resources when allocating the
    states in the initial set-up of the gpiochip.

    Driver fixes:

    - In ACPI retrieveal: ignore GpioInt when looking for output GPIOs.

    - Fix legacy builds on the PXA without a backing pin controller.

    - Use correct datatype on pca953x register writes"

    * tag 'gpio-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
    gpio: pca953x: Use correct u16 value for register word write
    gpiolib: Defer gpio device setup until after gpiolib initialization
    gpiolib: Do not use devm functions when registering gpio chip
    gpio: pxa: fix legacy non pinctrl aware builds
    gpio / ACPI: ignore GpioInt() GPIOs when requesting GPIO_OUT_*

    Linus Torvalds
     
  • Pull tty fixes from Greg KH:
    "Here are two tty fixes for issues found.

    One was due to a merge error in 4.6-rc1, and the other a regression
    fix for UML consoles that broke in 4.6-rc1.

    Both have been in linux-next for a while"

    * tag 'tty-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
    tty: Fix merge of "tty: Refactor tty_open()"
    tty: Fix UML console breakage

    Linus Torvalds
     
  • Pull USB fixes from Greg KH:
    "Here are some USB fixes and new device ids for 4.6-rc3.

    Nothing major, the normal USB gadget fixes and usb-serial driver ids,
    along with some other fixes mixed in. All except the USB serial ids
    have been tested in linux-next, the id additions should be fine as
    they are 'trivial'"

    * tag 'usb-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (25 commits)
    USB: option: add "D-Link DWM-221 B1" device id
    USB: serial: cp210x: Adding GE Healthcare Device ID
    USB: serial: ftdi_sio: Add support for ICP DAS I-756xU devices
    usb: dwc3: keystone: drop dma_mask configuration
    usb: gadget: udc-core: remove manual dma configuration
    usb: dwc3: pci: add ID for one more Intel Broxton platform
    usb: renesas_usbhs: fix to avoid using a disabled ep in usbhsg_queue_done()
    usb: dwc2: do not override forced dr_mode in gadget setup
    usb: gadget: f_midi: unlock on error
    USB: digi_acceleport: do sanity checking for the number of ports
    USB: cypress_m8: add endpoint sanity check
    USB: mct_u232: add sanity checking in probe
    usb: fix regression in SuperSpeed endpoint descriptor parsing
    USB: usbip: fix potential out-of-bounds write
    usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer
    usb: renesas_usbhs: avoid NULL pointer derefernce in usbhsf_pkt_handler()
    usb: gadget: f_midi: Fixed a bug when buflen was smaller than wMaxPacketSize
    usb: phy: qcom-8x16: fix regulator API abuse
    usb: ch9: Fix SSP Device Cap wFunctionalitySupport type
    usb: gadget: composite: Access SSP Dev Cap fields properly
    ...

    Linus Torvalds
     
  • Pull staging and IIO driver fixes from Greg KH:
    "Here are some IIO driver fixes, along with two staging driver fixes
    for 4.6-rc3.

    One staging driver patch reverts the deletion of a driver that
    happened in 4.6-rc1. We thought that laptop.org was dead, but it's
    still alive and kicking, and has users that were mad we broke their
    hardware by deleting a driver for their machines. So that driver is
    added back and everyone is happy again.

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

    * tag 'staging-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
    Revert "Staging: olpc_dcon: Remove obsolete driver"
    staging/rdma/hfi1: select CRC32
    iio: gyro: bmg160: fix buffer read values
    iio: gyro: bmg160: fix endianness when reading axes
    iio: accel: bmc150: fix endianness when reading axes
    iio: st_magn: always define ST_MAGN_TRIGGER_SET_STATE
    iio: fix config watermark initial value
    iio: health: max30100: correct FIFO check condition
    iio: imu: Fix inv_mpu6050 dependencies
    iio: adc: Fix build error of missing devm_ioremap_resource on UM
    iio: light: apds9960: correct FIFO check condition
    iio: adc: max1363: correct reference voltage
    iio: adc: max1363: add missing adc to max1363_id

    Linus Torvalds
     
  • Pull SCSI fixes from James Bottomley:
    "This is a set of eight fixes.

    Two are trivial gcc-6 updates (brace additions and unused variable
    removal). There's a couple of cxlflash regressions, a correction for
    sd being overly chatty on revalidation (causing excess log increases).
    A VPD issue which could crash USB devices because they seem very
    intolerant to VPD inquiries, an ALUA deadlock fix and a mpt3sas buffer
    overrun fix"

    * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
    scsi: Do not attach VPD to devices that don't support it
    sd: Fix excessive capacity printing on devices with blocks bigger than 512 bytes
    scsi_dh_alua: Fix a recently introduced deadlock
    scsi: Declare local symbols static
    cxlflash: Move to exponential back-off when cmd_room is not available
    cxlflash: Fix regression issue with re-ordering patch
    mpt3sas: Don't overreach ioc->reply_post[] during initialization
    aacraid: add missing curly braces

    Linus Torvalds
     
  • Pull MD fixes from Shaohua Li:
    "This update mainly fixes bugs:

    - fix error handling (Guoqing)
    - fix a crash when a disk is hotremoved (me)
    - fix a dead loop (Wei Fang)"

    * tag 'md/4.6-rc2-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
    md/bitmap: clear bitmap if bitmap_create failed
    MD: add rdev reference for super write
    md: fix a trivial typo in comments
    md:raid1: fix a dead loop when read from a WriteMostly disk

    Linus Torvalds
     
  • Pull power management and ACPI fixes from Rafael Wysocki:
    "Fixes for some issues discovered after recent changes and for some
    that have just been found lately regardless of those changes
    (intel_pstate, intel_idle, PM core, mailbox/pcc, turbostat) plus
    support for some new CPU models (intel_idle, Intel RAPL driver,
    turbostat) and documentation updates (intel_pstate, PM core).

    Specifics:

    - intel_pstate fixes for two issues exposed by the recent switch over
    from using timers and for one issue introduced during the 4.4 cycle
    plus new comments describing data structures used by the driver
    (Rafael Wysocki, Srinivas Pandruvada).

    - intel_idle fixes related to CPU offline/online (Richard Cochran).

    - intel_idle support (new CPU IDs and state definitions mostly) for
    Skylake-X and Kabylake processors (Len Brown).

    - PCC mailbox driver fix for an out-of-bounds memory access that may
    cause the kernel to panic() (Shanker Donthineni).

    - New (missing) CPU ID for one apparently overlooked Haswell model in
    the Intel RAPL power capping driver (Srinivas Pandruvada).

    - Fix for the PM core's wakeup IRQs framework to make it work after
    wakeup settings reconfiguration from sysfs (Grygorii Strashko).

    - Runtime PM documentation update to make it describe what needs to
    be done during device removal more precisely (Krzysztof Kozlowski).

    - Stale comment removal cleanup in the cpufreq-dt driver (Viresh
    Kumar).

    - turbostat utility fixes and support for Broxton, Skylake-X and
    Kabylake processors (Len Brown)"

    * tag 'pm+acpi-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (28 commits)
    PM / wakeirq: fix wakeirq setting after wakup re-configuration from sysfs
    tools/power turbostat: work around RC6 counter wrap
    tools/power turbostat: initial KBL support
    tools/power turbostat: initial SKX support
    tools/power turbostat: decode BXT TSC frequency via CPUID
    tools/power turbostat: initial BXT support
    tools/power turbostat: print IRTL MSRs
    tools/power turbostat: SGX state should print only if --debug
    intel_idle: Add KBL support
    intel_idle: Add SKX support
    intel_idle: Clean up all registered devices on exit.
    intel_idle: Propagate hot plug errors.
    intel_idle: Don't overreact to a cpuidle registration failure.
    intel_idle: Setup the timer broadcast only on successful driver load.
    intel_idle: Avoid a double free of the per-CPU data.
    intel_idle: Fix dangling registration on error path.
    intel_idle: Fix deallocation order on the driver exit path.
    intel_idle: Remove redundant initialization calls.
    intel_idle: Fix a helper function's return value.
    intel_idle: remove useless return from void function.
    ...

    Linus Torvalds
     
  • Pull networking fixes from David Miller:

    1) Stale SKB data pointer access across pskb_may_pull() calls in L2TP,
    from Haishuang Yan.

    2) Fix multicast frame handling in mac80211 AP code, from Felix
    Fietkau.

    3) mac80211 station hashtable insert errors not handled properly, fix
    from Johannes Berg.

    4) Fix TX descriptor count limit handling in e1000, from Alexander
    Duyck.

    5) Revert a buggy netdev refcount fix in netpoll, from Bjorn Helgaas.

    6) Must assign rtnl_link_ops of the device before registering it, fix
    in ip6_tunnel from Thadeu Lima de Souza Cascardo.

    7) Memory leak fix in tc action net exit, from WANG Cong.

    8) Add missing AF_KCM entries to name tables, from Dexuan Cui.

    9) Fix regression in GRE handling of csums wrt. FOU, from Alexander
    Duyck.

    10) Fix memory allocation alignment and congestion map corruption in
    RDS, from Shamir Rabinovitch.

    11) Fix default qdisc regression in tuntap driver, from Jason Wang.

    * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits)
    bridge, netem: mark mailing lists as moderated
    tuntap: restore default qdisc
    mpls: find_outdev: check for err ptr in addition to NULL check
    ipv6: Count in extension headers in skb->network_header
    RDS: fix congestion map corruption for PAGE_SIZE > 4k
    RDS: memory allocated must be align to 8
    GRE: Disable segmentation offloads w/ CSUM and we are encapsulated via FOU
    net: add the AF_KCM entries to family name tables
    MAINTAINERS: intel-wired-lan list is moderated
    lib/test_bpf: Add additional BPF_ADD tests
    lib/test_bpf: Add test to check for result of 32-bit add that overflows
    lib/test_bpf: Add tests for unsigned BPF_JGT
    lib/test_bpf: Fix JMP_JSET tests
    VSOCK: Detach QP check should filter out non matching QPs.
    stmmac: fix adjust link call in case of a switch is attached
    af_packet: tone down the Tx-ring unsupported spew.
    net_sched: fix a memory leak in tc action
    samples/bpf: Enable powerpc support
    samples/bpf: Use llc in PATH, rather than a hardcoded value
    samples/bpf: Fix build breakage with map_perf_test_user.c
    ...

    Linus Torvalds
     
  • Pull btrfs fixes from Chris Mason:
    "These are bug fixes, including a really old fsync bug, and a few trace
    points to help us track down problems in the quota code"

    * 'for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
    Btrfs: fix file/data loss caused by fsync after rename and new inode
    btrfs: Reset IO error counters before start of device replacing
    btrfs: Add qgroup tracing
    Btrfs: don't use src fd for printk
    btrfs: fallback to vmalloc in btrfs_compare_tree
    btrfs: handle non-fatal errors in btrfs_qgroup_inherit()
    btrfs: Output more info for enospc_debug mount option
    Btrfs: fix invalid reference in replace_path
    Btrfs: Improve FL_KEEP_SIZE handling in fallocate

    Linus Torvalds
     
  • Pull orangefs fixes from Mike Marshall:
    "Orangefs cleanups and a strncpy vulnerability fix.

    Cleanups:
    - remove an unused variable from orangefs_readdir.
    - clean up printk wrapper used for ofs "gossip" debugging.
    - clean up truncate ctime and mtime setting in inode.c
    - remove a useless null check found by coccinelle.
    - optimize some memcpy/memset boilerplate code.
    - remove some useless sanity checks from xattr.c

    Fix:
    - fix a potential strncpy vulnerability"

    * tag 'for-linus-4.6-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
    orangefs: remove unused variable
    orangefs: Add KERN_ to gossip_ macros
    orangefs: strncpy -> strscpy
    orangefs: clean up truncate ctime and mtime setting
    Orangefs: fix ifnullfree.cocci warnings
    Orangefs: optimize boilerplate code.
    Orangefs: xattr.c cleanup

    Linus Torvalds
     
  • Pull IOMMU fixes from Joerg Roedel:

    - compile-time fixes (warnings and failures)

    - a bug in iommu core code which could cause the group->domain pointer
    to be falsly cleared

    - fix in scatterlist handling of the ARM common DMA-API code

    - stall detection fix for the Rockchip IOMMU driver

    * tag 'iommu-fixes-v4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
    iommu/vt-d: Silence an uninitialized variable warning
    iommu/rockchip: Fix "is stall active" check
    iommu: Don't overwrite domain pointer when there is no default_domain
    iommu/dma: Restore scatterlist offsets correctly
    iommu: provide of_xlate pointer unconditionally

    Linus Torvalds
     

09 Apr, 2016

2 commits