Commit Graph

342165 Commits

Author SHA1 Message Date
Thomas Pedersen
e576defd1f ath5k: RX timestamp is reported at end of frame
This is true for at least AR5213, and shouldn't be different for other
ath5k PHYs. Tested on AR2413 and AR5414.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Tested-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-11 16:00:39 -05:00
Thomas Pedersen
75d7dbc280 ath9k_htc: RX timestamp is reported at end of frame
Accurate RX timestamp reporting is important for proper IBSS merging,
mesh synchronization, and MCCA scheduling. Namely, knowing where the TSF
is recorded is needed to sync with the beacon timestamp field.

Tested with AR9271.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-11 16:00:38 -05:00
Thomas Pedersen
96d21371ac ath9k: RX timestamp is reported at end of frame
Accurate RX timestamp reporting is important for proper IBSS merging,
mesh synchronization, and MCCA scheduling. Namely, knowing where the TSF
is recorded is needed to sync with the beacon timestamp field.

Tested with AR9280.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-11 16:00:38 -05:00
John W. Linville
fe8e410542 rt2800usb: reorganize 2001:3c1e in usb id table Wi-Fi adapter
Someone who physically disassembled the device confirms that its
chipset is Ralink RT5370n.

(Fixed-up after having already merged original patch. -- JWL)

Signed-off-by: Maia Kozheva <sikon@ubuntu.com>
Reviewed-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-11 15:55:02 -05:00
Linus Torvalds
bad73c5aa0 ACPI and power management updates for 3.8-rc1
* Introduction of device PM QoS flags.
 
 * ACPI device power management update allowing subsystems other than
   PCI to use it more easily.
 
 * ACPI device enumeration rework allowing additional kinds of devices
   to be enumerated via ACPI.  From Mika Westerberg, Adrian Hunter,
   Mathias Nyman, Andy Shevchenko, and Rafael J. Wysocki.
 
 * ACPICA update to version 20121018 from Bob Moore and Lv Zheng.
 
 * ACPI memory hotplug update from Wen Congyang and Yasuaki Ishimatsu.
 
 * Introduction of acpi_handle_<level>() messaging macros and ACPI-based CPU
   hot-remove support from Toshi Kani.
 
 * ACPI EC updates from Feng Tang.
 
 * cpufreq updates from Viresh Kumar, Fabio Baltieri and others.
 
 * cpuidle changes to quickly notice governor prediction failure from
   Youquan Song.
 
 * Support for using multiple cpuidle drivers at the same time and cpuidle
   cleanups from Daniel Lezcano.
 
 * devfreq updates from Nishanth Menon and others.
 
 * cpupower update from Thomas Renninger.
 
 * Fixes and small cleanups all over the place.
 
 --
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Merge tag 'pm+acpi-for-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management updates from Rafael Wysocki:

 - Introduction of device PM QoS flags.

 - ACPI device power management update allowing subsystems other than
   PCI to use it more easily.

 - ACPI device enumeration rework allowing additional kinds of devices
   to be enumerated via ACPI.  From Mika Westerberg, Adrian Hunter,
   Mathias Nyman, Andy Shevchenko, and Rafael J. Wysocki.

 - ACPICA update to version 20121018 from Bob Moore and Lv Zheng.

 - ACPI memory hotplug update from Wen Congyang and Yasuaki Ishimatsu.

 - Introduction of acpi_handle_<level>() messaging macros and ACPI-based
   CPU hot-remove support from Toshi Kani.

 - ACPI EC updates from Feng Tang.

 - cpufreq updates from Viresh Kumar, Fabio Baltieri and others.

 - cpuidle changes to quickly notice governor prediction failure from
   Youquan Song.

 - Support for using multiple cpuidle drivers at the same time and
   cpuidle cleanups from Daniel Lezcano.

 - devfreq updates from Nishanth Menon and others.

 - cpupower update from Thomas Renninger.

 - Fixes and small cleanups all over the place.

* tag 'pm+acpi-for-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (196 commits)
  mmc: sdhci-acpi: enable runtime-pm for device HID INT33C6
  ACPI: add Haswell LPSS devices to acpi_platform_device_ids list
  ACPI: add documentation about ACPI 5 enumeration
  pnpacpi: fix incorrect TEST_ALPHA() test
  ACPI / PM: Fix header of acpi_dev_pm_detach() in acpi.h
  ACPI / video: ignore BIOS initial backlight value for HP Folio 13-2000
  ACPI : do not use Lid and Sleep button for S5 wakeup
  ACPI / PNP: Do not crash due to stale pointer use during system resume
  ACPI / video: Add "Asus UL30VT" to ACPI video detect blacklist
  ACPI: do acpisleep dmi check when CONFIG_ACPI_SLEEP is set
  spi / ACPI: add ACPI enumeration support
  gpio / ACPI: add ACPI support
  PM / devfreq: remove compiler error with module governors (2)
  cpupower: IvyBridge (0x3a and 0x3e models) support
  cpupower: Provide -c param for cpupower monitor to schedule process on all cores
  cpupower tools: Fix warning and a bug with the cpu package count
  cpupower tools: Fix malloc of cpu_info structure
  cpupower tools: Fix issues with sysfs_topology_read_file
  cpupower tools: Fix minor warnings
  cpupower tools: Update .gitignore for files created in the debug directories
  ...
2012-12-11 12:45:35 -08:00
Linus Torvalds
b58ed041a3 Device tree changes for v3.8
Bug fixes, little cleanups, and documentation changes. The most invasive
 thing here touches a bunch of the arch directories to use a common build
 rule for .dtb files. There are no major changes to functionality here
 other than a ew new helper functions.
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull device tree changes from Grant Likely:
 "Here are the DT changes I've got queued up for v3.8.  As described
  below, there are a lot of bug fixes here and documentation updates but
  nothing major:

  Bug fixes, little cleanups, and documentation changes.  The most
  invasive thing here touches a bunch of the arch directories to use a
  common build rule for .dtb files.  There are no major changes to
  functionality here other than a few new helper functions."

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6: (34 commits)
  arm64: Fix the dtbs target building
  mtd: nand: davinci: fix the binding documentation
  rtc: rtc-mv: Add the device tree binding documentation
  devicetree/bindings: Move gpio-leds binding into leds directory
  of/vendor-prefixes: add Imagination Technologies
  microblaze: use new common dtc rule
  c6x: use new common dtc rule
  openrisc: use new common dtc rule
  arm64: Add dtbs target for building all the enabled dtb files
  arm64: use new common dtc rule
  ARM: dt: change .dtb build rules to build in dts directory
  kbuild: centralize .dts->.dtb rule
  Fix build when CONFIG_W1_MASTER_GPIO=m b exporting "allnodes"
  of/spi: Honour "status=disabled" property of device
  of_mdio: Honour "status=disabled" property of device
  of_i2c: Honour "status=disabled" property of device
  powerpc: Fix fallout from device_node->name constification
  of: add 'const' for of_parse_phandle parameter *np
  Documentation: correct of_platform_populate() argument list
  script: dtc: clean generated files
  ...
2012-12-11 11:30:41 -08:00
Linus Torvalds
259cdbee20 irqdomain changes for Linux v3.8
Trivial changes to irqdomain. An update to the documentation and make
 one of the error paths not quite so obnoxious.
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Merge tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull irqdomain changes from Grant Likely:
 "Trivial changes to irqdomain.  An update to the documentation and make
  one of the error paths not quite so obnoxious."

* tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  irqdomain: update documentation
  irqdomain: stop screaming about preallocated irqdescs
2012-12-11 11:30:08 -08:00
Linus Torvalds
9ada9fd5df Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC fixes from Borislav Petkov:

 - EDAC core error path fix, from Denis Kirjanov.

 - Generalization of AMD MCE bank names and some minor error reporting
   improvements.

 - EDAC core cleanups and simplifications, from Wei Yongjun.

 - amd64_edac fixes for sysfs-reported values, from Josh Hunt.

 - some heavy amd64_edac error reporting path shaving, leading to
   removing a bunch of code.

 - amd64_edac error injection method improvements.

 - EDAC core cleanups and fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (24 commits)
  EDAC, pci_sysfs: Use for_each_pci_dev to simplify the code
  EDAC: Handle error path in edac_mc_sysfs_init() properly
  MCE, AMD: Dump error status
  MCE, AMD: Report decoded error type first
  MCE, AMD: Dump CPU f/m/s triple with the error
  MCE, AMD: Remove functional unit references
  EDAC: Convert to use simple_open()
  EDAC, Calxeda highbank: Convert to use simple_open()
  EDAC: Fix mc size reported in sysfs
  EDAC: Fix csrow size reported in sysfs
  EDAC: Pass mci parent
  EDAC: Add memory controller flags
  amd64_edac: Fix csrows size and pages computation
  amd64_edac: Use DBAM_DIMM macro
  amd64_edac: Fix K8 chip select reporting
  amd64_edac: Reorganize error reporting path
  amd64_edac: Do not check whether error address is valid
  amd64_edac: Improve error injection
  amd64_edac: Cleanup error injection code
  amd64_edac: Small fixlets and cleanups
  ...
2012-12-11 11:28:43 -08:00
Linus Torvalds
c45564e916 Merge branch 'for-v3.8' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull CMA and DMA-mapping update from Marek Szyprowski:
 "Another set of Contiguous Memory Allocator and DMA-mapping framework
  updates for v3.8.

  This pull request consists only of two patches.  The first fixes a
  long standing issue with dmapools (the code predates current GIT
  history), which forced all allocations to use GFP_ATOMIC flag,
  ignoring the flags passed by the caller.  The second patch changes CMA
  code to correctly use phys_addr_t type what enables support for LPAE
  systems."

* 'for-v3.8' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
  drivers: cma: represent physical addresses as phys_addr_t
  mm: dmapool: use provided gfp flags for all dma_alloc_coherent() calls
2012-12-11 11:27:10 -08:00
Linus Torvalds
93874681aa The common clock framework changes for 3.8 are comprised of lots of
fixes for existing platforms as well as new ports for some ARM
 platforms.  In addition there are new clk drivers for audio devices and
 MFDs.
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Merge tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linux

Pull clock framework changes from Mike Turquette:
 "The common clock framework changes for 3.8 are comprised of lots of
  fixes for existing platforms as well as new ports for some ARM
  platforms.  In addition there are new clk drivers for audio devices
  and MFDs."

Fix up trivial conflict in <linux/clk-provider.h> (removal of 'inline'
clashing with return type fixes)

* tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linux: (51 commits)
  MAINTAINERS: bad email address for Mike Turquette
  clk: introduce optional disable_unused callback
  clk: ux500: fix bit error
  clk: clock multiplexers may register out of order
  clk: ux500: Initial support for abx500 clock driver
  CLK: SPEAr: Remove unused dummy apb_pclk
  CLK: SPEAr: Correct index scanning done for clock synths
  CLK: SPEAr: Update clock rate table
  CLK: SPEAr: Add missing clocks
  CLK: SPEAr: Set CLK_SET_RATE_PARENT for few clocks
  CLK: SPEAr13xx: fix parent names of multiple clocks
  CLK: SPEAr13xx: Fix mux clock names
  CLK: SPEAr: Fix dev_id & con_id for multiple clocks
  clk: move IM-PD1 clocks to drivers/clk
  clk: make ICST driver handle the VCO registers
  clk: add GPLv2 headers to the Versatile clock files
  clk: mxs: Use a better name for the USB PHY clock
  clk: spear: Add stub functions for spear3[0|1|2]0_clk_init()
  CLK: clk-twl6040: fix return value check in twl6040_clk_probe()
  clk: ux500: Register nomadik keypad clock lookups for u8500
  ...
2012-12-11 11:25:08 -08:00
Linus Torvalds
505cbedab9 This is the pinctrl big pull request for v3.8.
As can be seen from the diffstat the major changes
 are:
 
 - A big conversion of the AT91 pinctrl driver and
   the associated ACKed platform changes under
   arch/arm/max-at91 and its device trees. This
   has been coordinated with the AT91 maintainers
   to go in through the pinctrl tree.
 
 - A larger chunk of changes to the SPEAr drivers
   and the addition of the "plgpio" driver for the
   SPEAr as well.
 
 - The removal of the remnants of the Nomadik driver
   from the arch/arm tree and fusion of that into
   the Nomadik driver and platform data header files.
 
 - Some local movement in the Marvell MVEBU drivers,
   these now have their own subdirectory.
 
 - The addition of a chunk of code to gpiolib under
   drivers/gpio to register gpio-to-pin range mappings
   from the GPIO side of things. This has been
   requested by Grant Likely and is now implemented,
   it is particularly useful for device tree work.
 
 Then we have incremental updates all over the place,
 many of these are cleanups and fixes from Axel Lin
 who has done a great job of removing minor mistakes
 and compilation annoyances.
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Merge tag 'pinctrl-for-v3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl changes from Linus Walleij:
 "These are the first and major pinctrl changes for the v3.8 merge
  cycle.  Some of this is used as merge base for other trees so I better
  be early on the trigger.

  As can be seen from the diffstat the major changes are:

  - A big conversion of the AT91 pinctrl driver and the associated ACKed
    platform changes under arch/arm/max-at91 and its device trees.  This
    has been coordinated with the AT91 maintainers to go in through the
    pinctrl tree.

  - A larger chunk of changes to the SPEAr drivers and the addition of
    the "plgpio" driver for the SPEAr as well.

  - The removal of the remnants of the Nomadik driver from the arch/arm
    tree and fusion of that into the Nomadik driver and platform data
    header files.

  - Some local movement in the Marvell MVEBU drivers, these now have
    their own subdirectory.

  - The addition of a chunk of code to gpiolib under drivers/gpio to
    register gpio-to-pin range mappings from the GPIO side of things.
    This has been requested by Grant Likely and is now implemented, it
    is particularly useful for device tree work.

  Then we have incremental updates all over the place, many of these are
  cleanups and fixes from Axel Lin who has done a great job of removing
  minor mistakes and compilation annoyances."

* tag 'pinctrl-for-v3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (114 commits)
  ARM: mmp: select PINCTRL for ARCH_MMP
  pinctrl: Drop selecting PINCONF for MMP2, PXA168 and PXA910
  pinctrl: pinctrl-single: Fix error check condition
  pinctrl: SPEAr: Update error check for unsigned variables
  gpiolib: Fix use after free in gpiochip_add_pin_range
  gpiolib: rename pin range arguments
  pinctrl: single: support gpio request and free
  pinctrl: generic: add input schmitt disable parameter
  pinctrl/u300/coh901: stop spawning pinctrl from GPIO
  pinctrl/u300/coh901: let the gpio_chip register the range
  pinctrl: add function to retrieve range from pin
  gpiolib: return any error code from range creation
  pinctrl: make range registration defer properly
  gpiolib: rename find_pinctrl_*
  gpiolib: let gpiochip_add_pin_range() specify offset
  ARM: at91: pm9g45: add mmc support
  ARM: at91: Animeo IP: add mmc support
  ARM: at91: dt: add mmc pinctrl for Atmel reference boards
  ARM: at91: dt: at91sam9: add mmc pinctrl support
  ARM: at91/dts: add nodes for atmel hsmci controllers for atmel boards
  ...
2012-12-11 11:21:33 -08:00
Linus Torvalds
a8936db7c2 New driver: DA9055
Added/improved support for new chips in existing drivers: Z650/670, N550/570,
 ADS7830, AMD 16h family
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "New driver: DA9055

  Added/improved support for new chips in existing drivers: Z650/670,
  N550/570, ADS7830, AMD 16h family"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (da9055) Fix chan_mux[DA9055_ADC_ADCIN3] setting
  hwmon: DA9055 HWMON driver
  hwmon: (coretemp) List TjMax for Z650/670 and N550/570
  hwmon: (coretemp) Drop N4xx, N5xx, D4xx, D5xx CPUs from tjmax table
  hwmon: (coretemp) Use model table instead of if/else to identify CPU models
  hwmon: da9052: Use da9052_reg_update for rmw operations
  hwmon: (coretemp) Drop dependency on PCI for TjMax detection on Atom CPUs
  hwmon: (ina2xx) use module_i2c_driver to simplify the code
  hwmon: (ads7828) add support for ADS7830
  hwmon: (ads7828) driver cleanup
  x86,AMD: Power driver support for AMD's family 16h processors
2012-12-11 11:20:34 -08:00
Linus Torvalds
11b84c5857 MMC highlights for 3.8:
Core:
  - Expose access to the eMMC RPMB ("Replay Protected Memory Block") area
    by extending the existing mmc_block ioctl.
  - Add SDIO powered-suspend DT properties to the core MMC DT binding.
  - Add no-1-8-v DT flag for boards where the SD controller reports that it
    supports 1.8V but the board itself has no way to switch to 1.8V.
  - More work on switching to 1.8V UHS support using a vqmmc regulator.
  - Fix up a case where the slot-gpio helper may fail to reset the host
    controller properly if a card was removed during a transfer.
  - Fix several cases where a broken device could cause an infinite loop
    while we wait for a register to update.
 
 Drivers:
  - at91-mci: Remove obsolete driver, atmel-mci handles these devices now.
  - sdhci-dove: Allow using GPIOs for card-detect notifications.
  - sdhci-esdhc: Fix for recovering from ADMA errors on broken silicon.
  - sdhci-s3c: Add pinctrl support.
  - wmt-sdmmc: New driver for WonderMedia SD/MMC controllers.
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Merge tag 'mmc-updates-for-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC updates from Chris Ball:
 "MMC highlights for 3.8:

  Core:
   - Expose access to the eMMC RPMB ("Replay Protected Memory Block")
     area by extending the existing mmc_block ioctl.
   - Add SDIO powered-suspend DT properties to the core MMC DT binding.
   - Add no-1-8-v DT flag for boards where the SD controller reports
     that it supports 1.8V but the board itself has no way to switch to
     1.8V.
   - More work on switching to 1.8V UHS support using a vqmmc regulator.
   - Fix up a case where the slot-gpio helper may fail to reset the host
     controller properly if a card was removed during a transfer.
   - Fix several cases where a broken device could cause an infinite
     loop while we wait for a register to update.

  Drivers:
   - at91-mci: Remove obsolete driver, atmel-mci handles these devices
     now.
   - sdhci-dove: Allow using GPIOs for card-detect notifications.
   - sdhci-esdhc: Fix for recovering from ADMA errors on broken silicon.
   - sdhci-s3c: Add pinctrl support.
   - wmt-sdmmc: New driver for WonderMedia SD/MMC controllers."

* tag 'mmc-updates-for-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (65 commits)
  mmc: sdhci: implement the .card_event() method
  mmc: extend the slot-gpio card-detection to use host's .card_event() method
  mmc: add a card-event host operation
  mmc: sdhci-s3c: Fix compilation warning
  mmc: sdhci-pci: Enable SDHCI_CAN_DO_HISPD for Ricoh SDHCI controller
  mmc: sdhci-dove: allow GPIOs to be used for card detection on Dove
  mmc: sdhci-dove: use two-stage initialization for sdhci-pltfm
  mmc: sdhci-dove: use devm_clk_get()
  mmc: eSDHC: Recover from ADMA errors
  mmc: dw_mmc: remove duplicated buswidth code
  mmc: dw_mmc: relocate where dw_mci_setup_bus() is called from
  mmc: Limit MMC speed to 52MHz if not HS200
  mmc: dw_mmc: use devres functions in dw_mmc
  mmc: sh_mmcif: remove unneeded clock connection ID
  mmc: sh_mobile_sdhi: remove unneeded clock connection ID
  mmc: sh_mobile_sdhi: fix clock frequency printing
  mmc: Remove redundant null check before kfree in bus.c
  mmc: Remove redundant null check before kfree in sdio_bus.c
  mmc: sdhci-imx-esdhc: use more devm_* functions
  mmc: dt: add no-1-8-v device tree flag
  ...
2012-12-11 11:19:09 -08:00
Eric Dumazet
75be437230 net: gro: avoid double copy in skb_gro_receive()
__copy_skb_header(nskb, p) already copied p->cb[], no need to copy
it again.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-11 13:44:09 -05:00
Cong Wang
2ce297fc24 bridge: fix seq check in br_mdb_dump()
In case of rehashing, introduce a global variable 'br_mdb_rehash_seq'
which gets increased every time when rehashing, and assign
net->dev_base_seq + br_mdb_rehash_seq to cb->seq.

In theory cb->seq could be wrapped to zero, but this is not
easy to fix, as net->dev_base_seq is not visible inside
br_mdb_rehash(). In practice, this is rare.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-11 13:44:09 -05:00
Matthew Leach
2925f6c0c7 net: smc911x: use io{read,write}*_rep accessors
The {read,write}s{b,w,l} operations are not defined by all
architectures and are being removed from the asm-generic/io.h
interface.

This patch replaces the usage of these string functions in the smc911x
accessors with io{read,write}{8,16,32}_rep calls instead.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ben Herrenschmidt <benh@kernel.crashing.org>
Cc: netdev@vger.kernel.org
Signed-off-by: Matthew Leach <matthew@mattleach.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-11 12:49:53 -05:00
Abhijit Pawar
a71258d79e net: remove obsolete simple_strto<foo>
This patch removes the redundant occurences of simple_strto<foo>

Signed-off-by: Abhijit Pawar <abhi.c.pawar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-11 12:49:53 -05:00
stephen hemminger
a676847b39 tun: allow setting ethernet addresss while running
This is a pure software device, and ok with live address change.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-11 12:49:53 -05:00
Eric Dumazet
89c5fa3369 net: gro: dev_gro_receive() cleanup
__napi_gro_receive() is inlined from two call sites for no good reason.

Lets move the prep stuff in a function of its own, called only if/when
needed. This saves 300 bytes on x86 :

# size net/core/dev.o.after net/core/dev.o.before
   text	   data	    bss	    dec	    hex	filename
  51968	   1238	   1040	  54246	   d3e6	net/core/dev.o.before
  51664	   1238	   1040	  53942	   d2b6	net/core/dev.o.after

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-11 12:49:53 -05:00
Eric Dumazet
f8e8f97c11 net: fix a race in gro_cell_poll()
Dmitry Kravkov reported packet drops for GRE packets since GRO support
was added.

There is a race in gro_cell_poll() because we call napi_complete()
without any synchronization with a concurrent gro_cells_receive()

Once bug was triggered, we queued packets but did not schedule NAPI
poll.

We can fix this issue using the spinlock protected the napi_skbs queue,
as we have to hold it to perform skb dequeue anyway.

As we open-code skb_dequeue(), we no longer need to mask IRQS, as both
producer and consumer run under BH context.

Bug added in commit c9e6bc644e (net: add gro_cells infrastructure)

Reported-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-11 12:49:53 -05:00
Eric Dumazet
d46d132cc0 bnx2x: use netdev_alloc_frag()
Using netdev_alloc_frag() instead of kmalloc() permits better GRO or
TCP coalescing behavior, as skb_gro_receive() doesn't have to fallback
to frag_list overhead.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Dmitry Kravkov <dmitry@broadcom.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Acked-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-11 12:49:52 -05:00
Pavel Shilovsky
c299dd0e2d CIFS: Fix write after setting a read lock for read oplock files
If we have a read oplock and set a read lock in it, we can't write to the
locked area - so, filemap_fdatawrite may fail with a no information for a
userspace application even if we request a write to non-locked area. Fix
this by populating the page cache without marking affected pages dirty
after a successful write directly to the server.

Also remove CONFIG_CIFS_SMB2 ifdefs because it's suitable for both CIFS
and SMB2 protocols.

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-11 11:48:50 -06:00
Jeff Layton
d387a5c50b cifs: parse the device name into UNC and prepath
This should fix a regression that was introduced when the new mount
option parser went in. Also, when the unc= and prefixpath= options
are provided, check their values against the ones we parsed from
the device string. If they differ, then throw a warning that tells
the user that we're using the values from the unc= option for now,
but that that will change in 3.10.

Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-11 11:48:50 -06:00
Jeff Layton
839db3d10a cifs: fix up handling of prefixpath= option
Currently the code takes care to ensure that the prefixpath has a
leading '/' delimiter. What if someone passes us a prefixpath with a
leading '\\' instead? The code doesn't properly handle that currently
AFAICS.

Let's just change the code to skip over any leading delimiter character
when copying the prepath. Then, fix up the users of the prepath option
to prefix it with the correct delimiter when they use it.

Also, there's no need to limit the length of the prefixpath to 1k. If
the server can handle it, why bother forbidding it?

Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-11 11:48:49 -06:00
Jeff Layton
62a1a439e0 cifs: clean up handling of unc= option
Make sure we free any existing memory allocated for vol->UNC, just in
case someone passes in multiple unc= options.

Get rid of the check for too long a UNC. The check for >300 bytes seems
arbitrary. We later copy this into the tcon->treeName, for instance and
it's a lot shorter than 300 bytes.

Eliminate an extra kmalloc and copy as well. Just set the vol->UNC
directly with the contents of match_strdup.

Establish that the UNC should be stored with '\\' delimiters. Use
convert_delimiter to change it in place in the vol->UNC.

Finally, move the check for a malformed UNC into
cifs_parse_mount_options so we can catch that situation earlier.

Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-11 11:48:49 -06:00
Jeff Layton
193cdd8a29 cifs: fix SID binary to string conversion
The authority fields are supposed to be represented by a single 48-bit
value. It's also supposed to represent the value as hex if it's equal to
or greater than 2^32. This is documented in MS-DTYP, section 2.4.2.1.

Also, fix up the max string length to account for this fix.

Acked-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-11 11:48:49 -06:00
Catalin Marinas
d19766ec52 arm64: Update the MAINTAINERS entry
Add a backup maintainer and include Documentation/arm64/.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2012-12-11 13:58:05 +00:00
Russell King
0fa5d3996d Merge branch 'devel-stable' into for-linus 2012-12-11 10:01:53 +00:00
Ingo Molnar
c1ad41f1f7 Revert "sched/autogroup: Fix crash on reboot when autogroup is disabled"
This reverts commit 5258f386ea,
because the underlying autogroups bug got fixed upstream in
a better way, via:

  fd8ef11730 Revert "sched, autogroup: Stop going ahead if autogroup is disabled"

Cc: Mike Galbraith <efault@gmx.de>
Cc: Yong Zhang <yong.zhang0@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-12-11 10:23:45 +01:00
Vitaly Andrianov
4009793e15 drivers: cma: represent physical addresses as phys_addr_t
This commit changes the CMA early initialization code to use phys_addr_t
for representing physical addresses instead of unsigned long.

Without this change, among other things, dma_declare_contiguous() simply
discards any memory regions whose address is not representable as unsigned
long.

This is a problem on 32-bit PAE machines where unsigned long is 32-bit
but physical address space is larger.

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2012-12-11 09:28:09 +01:00
Marek Szyprowski
387870f2d6 mm: dmapool: use provided gfp flags for all dma_alloc_coherent() calls
dmapool always calls dma_alloc_coherent() with GFP_ATOMIC flag,
regardless the flags provided by the caller. This causes excessive
pruning of emergency memory pools without any good reason. Additionaly,
on ARM architecture any driver which is using dmapools will sooner or
later  trigger the following error:
"ERROR: 256 KiB atomic DMA coherent pool is too small!
Please increase it with coherent_pool= kernel parameter!".
Increasing the coherent pool size usually doesn't help much and only
delays such error, because all GFP_ATOMIC DMA allocations are always
served from the special, very limited memory pool.

This patch changes the dmapool code to correctly use gfp flags provided
by the dmapool caller.

Reported-by: Soeren Moch <smoch@web.de>
Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Soeren Moch <smoch@web.de>
Cc: stable@vger.kernel.org
2012-12-11 09:28:08 +01:00
Mike Turquette
8f87189653 MAINTAINERS: bad email address for Mike Turquette
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-12-10 22:35:32 -08:00
Mike Turquette
7c045a55c9 clk: introduce optional disable_unused callback
Some gate clocks have special needs which must be handled during the
disable-unused clocks sequence.  These needs might be driven by software
due to the fact that we're disabling a clock outside of the normal
clk_disable path and a clk's enable_count will not be accurate.  On the
other hand a specific hardware programming sequence might need to be
followed for this corner case.

This change is needed for the upcoming OMAP port to the common clock
framework.  Specifically, it is undesirable to treat the disable-unused
path identically to the normal clk_disable path since other software
layers are involved.  In this case OMAP's clockdomain code throws WARNs
and bails early due to the clock's enable_count being set to zero.  A
custom callback mitigates this problem nicely.

Cc: Paul Walmsley <paul@pwsan.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-12-10 22:35:02 -08:00
Mark Brown
7c8a299430 Merge remote-tracking branch 'regmap/topic/type' into regmap-next 2012-12-11 12:39:49 +09:00
Mark Brown
8e24a6e696 Merge remote-tracking branch 'regmap/topic/table' into regmap-next 2012-12-11 12:39:32 +09:00
Mark Brown
db760fbecd Merge remote-tracking branch 'regmap/topic/lock' into regmap-next 2012-12-11 12:39:30 +09:00
Mark Brown
4d348e6e0a Merge remote-tracking branch 'regmap/topic/domain' into regmap-next 2012-12-11 12:39:29 +09:00
Mark Brown
bcf86687d6 Merge remote-tracking branch 'regmap/topic/debugfs' into regmap-next 2012-12-11 12:39:20 +09:00
Mark Brown
d3816c1a0e Merge remote-tracking branch 'regmap/topic/core' into regmap-next 2012-12-11 12:39:17 +09:00
Linus Torvalds
29594404d7 Linux 3.7 2012-12-10 19:30:57 -08:00
Catalin Marinas
58fea354d8 arm64: Fix the dtbs target building
The arch/arm64/Makefile was not passing the right target to the
boot/dts/Makefile.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-12-10 20:24:57 -06:00
Russell King
0b99cb7310 Merge branches 'cache-l2x0', 'fixes', 'hdrs', 'misc', 'mmci', 'vic' and 'warnings' into for-next 2012-12-11 00:20:18 +00:00
Steve Capper
810883f059 ARM: 7594/1: Add .smp entry for REALVIEW_EB
The REALVIEW EB board can host tiles with multiple cores thus needs
to be able to initialise SMP. There is, however, no .smp entry in
the MACHINE_START struct for REALVIEW_EB.

This patch adds the appropriate .smp entry to this struct.

Signed-off-by: Steve Capper <steve.capper@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-12-11 00:19:30 +00:00
Dave Martin
1ecec696c8 ARM: 7599/1: head: Remove boot-time HYP mode check for v5 and below
The kernel can only be entered on HYP mode on CPUs which actually
support it, i.e.  >= ARMv7.  pre-v6 platform support cannot coexist
in the same kernel as support for v7 and higher, so there is no
advantage in having the HYP mode check on pre-v6 hardware.

At least one pre-v6 board is known to fail when the HYP mode check
code is present, although the exact cause remains unknown and may
be unrelated.  [1]

This patch restores the old behaviour for pre-v6 platforms, whereby
the CPSR is forced directly to SVC mode with IRQs and FIQs masked.
All kernels capable of booting on v7 hardware will retain the
check, so this should not impair functionality.

[1] http://lists.arm.linux.org.uk/lurker/message/20121130.013814.19218413.en.html
([ARM] head.S change broke platform device registration?)

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-12-11 00:19:29 +00:00
Schichan Nicolas
fe15f3f106 ARM: 7598/1: net: bpf_jit_32: fix sp-relative load/stores offsets.
The offset must be multiplied by 4 to be sure to access the correct
32bit word in the stack scratch space.

For instance, a store at scratch memory cell #1 was generating the
following:

st	r4, [sp, #1]

While the correct code for this is:

st	r4, [sp, #4]

To reproduce the bug (assuming your system has a NIC with the mac
address 52:54:00:12:34:56):

echo 0 > /proc/sys/net/core/bpf_jit_enable
tcpdump -ni eth0 "ether[1] + ether[2] - ether[3] * ether[4] - ether[5] \
	== -0x3AA" # this will capture packets as expected

echo 1 > /proc/sys/net/core/bpf_jit_enable
tcpdump -ni eth0 "ether[1] + ether[2] - ether[3] * ether[4] - ether[5] \
	== -0x3AA" # this will not.

This bug was present since the original inclusion of bpf_jit for ARM
(ddecdfce: ARM: 7259/3: net: JIT compiler for packet filters).

Signed-off-by: Nicolas Schichan <nschichan@freebox.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-12-11 00:19:29 +00:00
Will Deacon
b10bca0bc6 ARM: 7595/1: syscall: rework ordering in syscall_trace_exit
syscall_trace_exit is currently doing things back-to-front; invoking
the audit hook *after* signalling the debugger, which presents an
opportunity for the registers to be re-written by userspace in order to
bypass auditing constaints.

This patch fixes the ordering by moving the audit code first and the
tracehook code last. On the face of it, it looks like
current_thread_info()->syscall may be incorrect for the sys_exit
tracepoint, but that's actually not an issue because it will have been
set during syscall entry and cannot have changed since then.

Reported-by: Andrew Gabbasov <Andrew_Gabbasov@mentor.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-12-11 00:18:26 +00:00
Davide Ciminaghi
4b85da08c4 ARM: 7596/1: mmci: replace readsl/writesl with ioread32_rep/iowrite32_rep
Not all the architectures have readsl/writesl,
use the more portable ioread32_rep/iowrite32_rep functions instead.

Signed-off-by: Davide Ciminaghi <ciminaghi@gnudd.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-12-11 00:18:08 +00:00
Schichan Nicolas
89c2e00978 ARM: 7597/1: net: bpf_jit_32: fix kzalloc gfp/size mismatch.
Official prototype for kzalloc is:

void *kzalloc(size_t, gfp_t);

The ARM bpf_jit code was having the assumption that it was:

void *kzalloc(gfp_t, size);

This was resulting the use of some random GFP flags depending on the
size requested and some random overflows once the really needed size
was more than the value of GFP_KERNEL.

This bug was present since the original inclusion of bpf_jit for ARM
(ddecdfce: ARM: 7259/3: net: JIT compiler for packet filters).

Signed-off-by: Nicolas Schichan <nschichan@freebox.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-12-11 00:16:59 +00:00
Florian Fainelli
55220bb3e5 Input: matrix-keymap - provide proper module license
The matrix-keymap module is currently lacking a proper module license,
add one so we don't have this module tainting the entire kernel.  This
issue has been present since commit 1932811f42 ("Input: matrix-keymap
- uninline and prepare for device tree support")

Signed-off-by: Florian Fainelli <florian@openwrt.org>
CC: stable@vger.kernel.org # v3.5+
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-10 16:10:05 -08:00
Linus Torvalds
2c68bc72dc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Netlink socket dumping had several missing verifications and checks.

    In particular, address comparisons in the request byte code
    interpreter could access past the end of the address in the
    inet_request_sock.

    Also, address family and address prefix lengths were not validated
    properly at all.

    This means arbitrary applications can read past the end of certain
    kernel data structures.

    Fixes from Neal Cardwell.

 2) ip_check_defrag() operates in contexts where we're in the process
    of, or about to, input the packet into the real protocols
    (specifically macvlan and AF_PACKET snooping).

    Unfortunately, it does a pskb_may_pull() which can modify the
    backing packet data which is not legal if the SKB is shared.  It
    very much can be shared in this context.

    Deal with the possibility that the SKB is segmented by using
    skb_copy_bits().

    Fix from Johannes Berg based upon a report by Eric Leblond.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  ipv4: ip_check_defrag must not modify skb before unsharing
  inet_diag: validate port comparison byte code to prevent unsafe reads
  inet_diag: avoid unsafe and nonsensical prefix matches in inet_diag_bc_run()
  inet_diag: validate byte code to prevent oops in inet_diag_bc_run()
  inet_diag: fix oops for IPv4 AF_INET6 TCP SYN-RECV state
2012-12-10 16:07:11 -08:00