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Author SHA1 Message Date
Linus Torvalds 32250e4a5f Merge branch 'i2c/for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 
Pull i2c updates from Wolfram Sang:
 "Quite some driver updates:
   - piix4 can now handle multiplexed adapters
   - brcmstb, xlr, eg20t, designware drivers support more SoCs
   - emev2 gained i2c slave support
   - img-scb and rcar got bigger refactoring to remove issues
   - lots of common driver updates

  i2c core changes:
   - new quirk flag when an adapter does not support clock stretching,
     so clients can be configured to avoid that if possible
   - added a helper function to retrieve timing parameters from firmware
     (with rcar being the first user)
   - "multi-master" DT binding added so drivers can adapt to this
     setting (like disabling PM to keep arbitration working)
   - RuntimePM for the logical adapter device is now always enabled by
     the core to ensure propagation from childs to the parent (the HW
     device)
   - new macro builtin_i2c_driver to reduce boilerplate"

* 'i2c/for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (70 commits)
  i2c: create builtin_i2c_driver to avoid registration boilerplate
  i2c: imx: fix i2c resource leak with dma transfer
  dt-bindings: i2c: eeprom: add another EEPROM device
  dt-bindings: move I2C eeprom descriptions to the proper file
  i2c: designware: Do not require clock when SSCN and FFCN are provided
  DT: i2c: trivial-devices: Add Epson RX8010 and MPL3115
  i2c: s3c2410: remove superfluous runtime PM calls
  i2c: always enable RuntimePM for the adapter device
  i2c: designware: retry transfer on transient failure
  i2c: ibm_iic: rename i2c_timings struct due to clash with generic version
  i2c: designware: Add support for AMD Seattle I2C
  i2c: imx: Remove unneeded comments
  i2c: st: use to_platform_device()
  i2c: designware: use to_pci_dev()
  i2c: brcmstb: Adding support for CM and DSL SoCs
  i2c: mediatek: fix i2c multi transfer issue in high speed mode
  i2c: imx: improve code readability
  i2c: imx: Improve message log when DMA is not used
  i2c: imx: add runtime pm support to improve the performance
  i2c: imx: init bus recovery info before adding i2c adapter
  ...
 2016-01-14 11:25:37 -08:00
Linus Torvalds 5339f9d4c2 DeviceTree updates for 4.5: 
- Rework and export the changeset API to make it available to users
 other than DT overlays
 
 - ARM secure devices binding
 
 - OCTEON USB binding
 
 - Clean-up of various SRAM binding docs
 
 - Various other binding doc updates
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Merge tag 'devicetree-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:

 - Rework and export the changeset API to make it available to users
   other than DT overlays

 - ARM secure devices binding

 - OCTEON USB binding

 - Clean-up of various SRAM binding docs

 - Various other binding doc updates

* tag 'devicetree-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (21 commits)
  drivers/of: Export OF changeset functions
  Fix documentation for adp1653 DT
  ARM: psci: Fix indentation in DT bindings
  of/platform: export of_default_bus_match_table
  of/unittest: Show broken behaviour in the platform bus
  of: fix declaration of of_io_request_and_map
  of/address: replace printk(KERN_ERR ...) with pr_err(...)
  of/irq: optimize device node matching loop in of_irq_init()
  dt-bindings: tda998x: Document the required 'port' node.
  net/macb: bindings doc: Merge cdns-emac to macb
  dt-bindings: Misc fix for the ATH79 DDR controllers
  dt-bindings: Misc fix for the ATH79 MISC interrupt controllers
  Documentation: dt: Add bindings for Secure-only devices
  dt-bindings: ARM: add arm,cortex-a72 compatible string
  ASoC: Atmel: ClassD: add GCK's parent clock in DT binding
  DT: add Olimex to vendor prefixes
  Documentation: fsl-quadspi: Add fsl,ls1021-qspi compatible string
  Documentation/devicetree: document OCTEON USB bindings
  usb: misc: usb3503: Describe better how to bind clock to the hub
  dt-bindings: Consolidate SRAM bindings from all vendors
  ...
 2016-01-14 11:13:28 -08:00
Linus Torvalds cf8d7e3850 - New Device Support 
- Add support for s2mps15; sec-core
    - Add support for Lewisburg; lpc_ich
    - Add support for cs47l24 and wm1831; arizona
  - New Functionality
    - Allow user to select syscon register width; syscon
  - Fix-ups
    - Lots of Checkpatch fixes
    - Rename -pmic/-regulator; s2mps11
    - Build driver components into a single module; wm8994-*
    - Better handing of IRQ during suspend/resume; as3722
    - Constify things; da903x
    - Remove unused code; ab8500-core
    - Improve error handing; qcom_rpm
    - Simplify code: wm831x-otp, sta2x11-mfd
    - Improve locking; cros_ec_spi
    - Fix incorrect DT binding filename reference; arizona, palmas,
                                                   snps-dwapb-gpio, wm8994
  - Bug Fixes
    - Fix broken SYSFS 'show ID' call; wm831x-otp
    - Protect reads from non-existent registers; qcom-spmi-pmic
    - Repair build warnings; as3722
    - Fix IRQ request ordering; arizona-irq
    - Ensure return value is boolean; ucb1x00-core, tps65010, tc6393xb,
                                      htc-egpio, dm355evm_msp, asic3,
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Merge tag 'mfd-for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Device Support:
   - Add support for s2mps15; sec-core
   - Add support for Lewisburg; lpc_ich
   - Add support for cs47l24 and wm1831; arizona

  New Functionality:
   - Allow user to select syscon register width; syscon

  Fix-ups:
   - Lots of Checkpatch fixes
   - Rename -pmic/-regulator; s2mps11
   - Build driver components into a single module; wm8994-*
   - Better handing of IRQ during suspend/resume; as3722
   - Constify things; da903x
   - Remove unused code; ab8500-core
   - Improve error handing; qcom_rpm
   - Simplify code: wm831x-otp, sta2x11-mfd
   - Improve locking; cros_ec_spi
   - Fix incorrect DT binding filename reference; arizona, palmas,
     snps-dwapb-gpio, wm8994

  Bug Fixes:
   - Fix broken SYSFS 'show ID' call; wm831x-otp
   - Protect reads from non-existent registers; qcom-spmi-pmic
   - Repair build warnings; as3722
   - Fix IRQ request ordering; arizona-irq
   - Ensure return value is boolean; ucb1x00-core, tps65010, tc6393xb,
     htc-egpio, dm355evm_msp, asic3"

* tag 'mfd-for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (58 commits)
  mfd: davinci_voicecodec: Remove pointless 'out of memory' error message
  mfd: da9052-irq: Fix trivial 'space before comma' error
  mfd: da9052-i2c: Fix tabbing/whitespace issue
  mfd: da903x: Fix white space and split string issues
  mfd: cs5535-mfd: Add missing line spacing and make local array static
  mfd: cros_ec_spi: Repair comparison ordering issue
  mfd: cros_ec_i2c: Fix trivial 'tabs before spaces' whitespace issue.
  mfd: asic3: Fix a plethora of Checkpatch errors and warnings
  mfd: as3711: Repair OOM and 'line over 80 chars' formatting warnings
  mfd: arizona-i2c: Add blank line formatting after declaration
  mfd: arizona-core: msleep() is unreliable for anything <20ms use usleep_range() instead
  mfd: adp5520: Some trivial 'no space before tab' fixes
  mfd: ab8500-sysctrl: Fix Constify, printk => pr_info and formatting issues
  mfd: ab8500-gpadc: Squash a whole bunch of Checkpatch warnings and one error
  mfd: ab8500-debugfs: Clean-up non-conforming commenting and print formatting
  mfd: ab8500-core: Fix many warnings reported by Checkpatch
  mfd: ab2100-otp: Remove pointless 'out of memory' error message
  mfd: ab3100-core.c: Fix multiple warnings reported by Checkpatch
  mfd: aat2870-core: Remove unnecessary 'out of memory' message
  mfd: 88pm860x-core: Fix commenting and declaration spacing
  ...
 2016-01-14 10:53:15 -08:00
Charles Keepax 0b81995148 mfd: arizona: Add device tree binding documentation for new clock driver 
Specify the device tree binding for the input clocks to Arizona devices.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2016-01-14 08:43:51 +00:00
Krzysztof Kozlowski 5d1d147f04 dt-bindings: regulator/mfd: Reorganize S2MPA01 bindings 
The mfd/s2mpa01.txt duplicates some of the information about bindings
with old mfd/s2mps11.txt. Now common part exists entirely in
mfd/samsung,sec-core.txt so:
 - add company prefix to file name (regulator/samsung,s2mpa01.txt),
 - remove duplicated information,
 - reorganize the contents to match style of
   regulator/samsung,s2mps11.txt.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2016-01-14 08:43:49 +00:00
Krzysztof Kozlowski 27383ca93b dt-bindings: regulator/mfd: Reorganize S5M8767 bindings 
The regulator/s5m8767-regulator.txt duplicates some of the information
about bindings with old mfd/s2mps11.txt. Now common part exists entirely
in mfd/samsung,sec-core.txt so:
 - add company prefix to file name (regulator/samsung,s5m8767.txt),
 - remove duplicated information,
 - reorganize the contents to match style of
   regulator/samsung,s2mps11.txt.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2016-01-14 08:43:48 +00:00
Krzysztof Kozlowski a13c7c51fd dt-bindings: regulator/clock/mfd: Reorganize S2MPS-family bindings 
Bindings for Samsung S2M and S5M family PMICs are in mess. They are
spread over different files and subdirectories in a non-consistent way.
The devices and respective drivers for them share a lot in common so
everything could be organized in a more readable way.

Reorganize the S2MPS11/13/14/15 Device Tree bindings to match the
drivers for this family of devices:
 - move mfd/s2mps11.txt to mfd/samsung,sec-core.txt for the main MFD
   driver (common for entire family),
 - split clock block to clock/samsung,s2mps11.txt,
 - split regulator block to regulator/samsung,s2mps11.txt.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Michael Turquette <mturquette@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2016-01-14 08:43:48 +00:00
Linus Torvalds f9a03ae123 Merge tag 'for-f2fs-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs 
Pull f2fs updates from Jaegeuk Kim:
 "This series adds two ioctls to control cached data and fragmented
  files.  Most of the rest fixes missing error cases and bugs that we
  have not covered so far.  Summary:

  Enhancements:
   - support an ioctl to execute online file defragmentation
   - support an ioctl to flush cached data
   - speed up shrinking of extent_cache entries
   - handle broken superblock
   - refector dirty inode management infra
   - revisit f2fs_map_blocks to handle more cases
   - reduce global lock coverage
   - add detecting user's idle time

  Major bug fixes:
   - fix data race condition on cached nat entries
   - fix error cases of volatile and atomic writes"

* tag 'for-f2fs-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (87 commits)
  f2fs: should unset atomic flag after successful commit
  f2fs: fix wrong memory condition check
  f2fs: monitor the number of background checkpoint
  f2fs: detect idle time depending on user behavior
  f2fs: introduce time and interval facility
  f2fs: skip releasing nodes in chindless extent tree
  f2fs: use atomic type for node count in extent tree
  f2fs: recognize encrypted data in f2fs_fiemap
  f2fs: clean up f2fs_balance_fs
  f2fs: remove redundant calls
  f2fs: avoid unnecessary f2fs_balance_fs calls
  f2fs: check the page status filled from disk
  f2fs: introduce __get_node_page to reuse common code
  f2fs: check node id earily when readaheading node page
  f2fs: read isize while holding i_mutex in fiemap
  Revert "f2fs: check the node block address of newly allocated nid"
  f2fs: cover more area with nat_tree_lock
  f2fs: introduce max_file_blocks in sbi
  f2fs crypto: check CONFIG_F2FS_FS_XATTR for encrypted symlink
  f2fs: introduce zombie list for fast shrinking extent trees
  ...
 2016-01-13 21:01:44 -08:00
Linus Torvalds 1289ace5b4 SCSI misc on 20160113 
This pull includes driver updates from the usual suspects (bfa, arcmsr,
 scsi_dh_alua, lpfc, storvsc, cxlflash).  The major change is the addition of
 the hisi_sas driver, which is an ARM platform device for SAS.  The other
 change of note is an enormous style transformation to the atp870u driver
 (which is our worst written SCSI driver).
 
 Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull first round of SCSI updates from James Bottomley:
 "This includes driver updates from the usual suspects (bfa, arcmsr,
  scsi_dh_alua, lpfc, storvsc, cxlflash).

  The major change is the addition of the hisi_sas driver, which is an
  ARM platform device for SAS.  The other change of note is an enormous
  style transformation to the atp870u driver (which is our worst written
  SCSI driver)"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (169 commits)
  cxlflash: Enable device id for future IBM CXL adapter
  cxlflash: Resolve oops in wait_port_offline
  cxlflash: Fix to resolve cmd leak after host reset
  cxlflash: Removed driver date print
  cxlflash: Fix to avoid virtual LUN failover failure
  cxlflash: Fix to escalate LINK_RESET also on port 1
  storvsc: Tighten up the interrupt path
  storvsc: Refactor the code in storvsc_channel_init()
  storvsc: Properly support Fibre Channel devices
  storvsc: Fix a bug in the layout of the hv_fc_wwn_packet
  mvsas: Add SGPIO support to Marvell 94xx
  mpt3sas: A correction in unmap_resources
  hpsa: Add box and bay information for enclosure devices
  hpsa: Change SAS transport devices to bus 0.
  hpsa: fix path_info_show
  cciss: print max outstanding commands as a hex value
  scsi_debug: Increase the reported optimal transfer length
  lpfc: Update version to 11.0.0.10 for upstream patch set
  lpfc: Use kzalloc instead of kmalloc
  lpfc: Delete unnecessary checks before the function call "mempool_destroy"
  ...
 2016-01-13 19:37:36 -08:00
Linus Torvalds cbd88cd4c0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 
Pull s390 updates from Martin Schwidefsky:
 "Among the traditional bug fixes and cleanups are some improvements:

   - A tool to generated the facility lists, generating the bit fields
     by hand has been a source of bugs in the past

   - The spinlock loop is reordered to avoid bursts of hypervisor calls

   - Add support for the open-for-business interface to the service
     element

   - The get_cpu call is added to the vdso

   - A set of tracepoints is defined for the common I/O layer

   - The deprecated sclp_cpi module is removed

   - Update default configuration"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (56 commits)
  s390/sclp: fix possible control register corruption
  s390: fix normalization bug in exception table sorting
  s390/configs: update default configurations
  s390/vdso: optimize getcpu system call
  s390: drop smp_mb in vdso_init
  s390: rename struct _lowcore to struct lowcore
  s390/mem_detect: use unsigned longs
  s390/ptrace: get rid of long longs in psw_bits
  s390/sysinfo: add missing SYSIB 1.2.2 multithreading fields
  s390: get rid of CONFIG_SCHED_MC and CONFIG_SCHED_BOOK
  s390/Kconfig: remove pointless 64 bit dependencies
  s390/dasd: fix failfast for disconnected devices
  s390/con3270: testing return kzalloc retval
  s390/hmcdrv: constify hmcdrv_ftp_ops structs
  s390/cio: add NULL test
  s390/cio: Change I/O instructions from inline to normal functions
  s390/cio: Introduce common I/O layer tracepoints
  s390/cio: Consolidate inline assemblies and related data definitions
  s390/cio: Fix incorrect xsch opcode specification
  s390/cio: Remove unused inline assemblies
  ...
 2016-01-13 13:16:16 -08:00
Linus Torvalds 77a76b04d2 media updates for v4.5-rc1 
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Merge tag 'media/v4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull second batch of media updates from Mauro Carvalho Chehab:
 "This is the second part of the media patches.  It contains the media
  controller next generation patches, with is the result of one year of
  discussions and development.  It also contains patches to enable media
  controller support at the DVB subsystem.

  The goal is to improve the media controller to allow proper support
  for other types of Video4Linux devices (radio and TV ones) and to
  extend the media controller functionality to allow it to be used by
  other subsystems like DVB, ALSA and IIO.

  In order to use the new functionality, a new ioctl is needed
  (MEDIA_IOC_G_TOPOLOGY).  As we're still discussing how to pack the
  struct fields of this ioctl in order to avoid compat32 issues, I
  decided to add a patch at the end of this series commenting out the
  new ioctl, in order to postpone the addition of the new ioctl to the
  next Kernel version (4.6).

  With that, no userspace visible changes should happen at the media
  controller API, as the existing ioctls are untouched.  Yet, it helps
  DVB, ALSA and IIO developers to develop and test the patches adding
  media controller support there, as the core will contain all required
  internal changes to allow adding support for devices that belong to
  those subsystems"

* tag 'media/v4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (177 commits)
  [media] Postpone the addition of MEDIA_IOC_G_TOPOLOGY
  [media] mxl111sf: Add a tuner entity
  [media] dvbdev: create links on devices with multiple frontends
  [media] media-entitiy: add a function to create multiple links
  [media] dvb-usb-v2: postpone removal of media_device
  [media] dvbdev: Add RF connector if needed
  [media] dvbdev: remove two dead functions if !CONFIG_MEDIA_CONTROLLER_DVB
  [media] call media_device_init() before registering the V4L2 device
  [media] uapi/media.h: Use u32 for the number of graph objects
  [media] media-entity: don't sleep at media_device_register_entity()
  [media] media-entity: increase max number of PADs
  [media] media-entity.h: document the remaining functions
  [media] media-device.h: use just one u32 counter for object ID
  [media] media-entity.h fix documentation for several parameters
  [media] DocBook: document media_entity_graph_walk_cleanup()
  [media] move documentation to the header files
  [media] media: Move MEDIA_ENTITY_MAX_PADS from media-entity.h to media-entity.c
  [media] media: Remove pre-allocated entity enumeration bitmap
  [media] staging: v4l: davinci_vpbe: Use the new media graph walk interface
  [media] staging: v4l: omap4iss: Use the new media graph walk interface
  ...
 2016-01-13 11:46:37 -08:00
Linus Torvalds 50ae833e47 spi: Updates for v4.5 
A quiet release for SPI, not even many driver updates:
 
  - Add a dummy loopback driver for use in exercising framework features
    during development.
  - Move the test utilities to tools/ and add support for transferring
    data to and from a file instead of stdin and stdout to spidev_test.
  - Support for Mediatek MT2701 and Renesas AG5 deices.
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Merge tag 'spi-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "A quiet release for SPI, not even many driver updates:

   - Add a dummy loopback driver for use in exercising framework
     features during development.

   - Move the test utilities to tools/ and add support for transferring
     data to and from a file instead of stdin and stdout to spidev_test.

   - Support for Mediatek MT2701 and Renesas AG5 deices"

* tag 'spi-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (69 commits)
  spi: loopback: fix typo in MODULE_PARM_DESC
  spi: sun4i: Prevent chip-select from being activated twice before a transfer
  spi: loopback-test: spi_check_rx_ranges can get always done
  spi: loopback-test: rename method spi_test_fill_tx to spi_test_fill_pattern
  spi: loopback-test: write rx pattern also when running without tx_buf
  spi: fsl-espi: expose maximum transfer size limit
  spi: expose master transfer size limitation.
  spi: zynq: use to_platform_device()
  spi: cadence: use to_platform_device()
  spi: mediatek: Add spi support for mt2701 IC
  spi: mediatek: merge all identical compat to mtk_common_compat
  spi: mtk: Add bindings for mediatek MT2701 soc platform
  spi: mediatek: Prevent overflows in FIFO transfers
  spi: s3c64xx: Remove unused platform_device_id entries
  spi: use to_spi_device
  spi: dw: Use SPI_TMOD_TR rather than magic const 0 to set tmode
  spi: imx: defer spi initialization, if DMA engine is
  spi: imx: return error from dma channel request
  spi: imx: enable loopback only for ECSPI controller family
  spi: imx: fix loopback mode setup after controller reset
  ...
 2016-01-13 11:38:27 -08:00
Linus Torvalds ac53b2e053 MTD updates for v4.5: 
Generic MTD
 
  * populate the MTD device 'of_node' field (and get a proper 'of_node' symlink
    in sysfs)
    - This yielded some new helper functions, and changes across a variety of
      drivers
 
  * partitioning cleanups, to prepare for better device-tree based partitioning
    in the future
    - Eliminate a lot of boilerplate for drivers that want to use OF-based
      partition parsing
    - The DT bindings for this didn't settle yet, so most non-cleanup portions
      are deferred for a future release
 
 NAND
 
  * embed a struct mtd_info inside struct nand_chip
    - This is really long overdue; too many drivers have to do the same silly
      boilerplate to allocate and link up two "independent" structs, when in
      fact, everyone is assuming there is an exact 1:1 relationship between a
      NAND chips struct and its underlying MTD. This aids improved helpers and
      should make certain abstractions easier in the future.
    - Also causes a lot of churn, helped along by some automated code
      transformations
 
  * add more core support for detecting (and "correcting") bitflips in erased
    pages; requires opt-in by drivers, but at least we kill a few bad
    implementations and hopefully stave off future ones
 
  * pxa3xx_nand: cleanups, a few fixes, and PM improvements
 
  * new JZ4780 NAND driver
 
 SPI NOR
 
  * provide default erase function, for controllers that just want to send the
    SECTOR_ERASE command directly
 
  * fix some module auto-loading issues with device tree ("jedec,spi-nor")
 
  * error handling fixes
 
  * new Mediatek QSPI flash driver
 
 Other
 
  * cfi: force valid geometry Kconfig (finally!)
    - this one used to trip up randconfigs occasionally, since bots aren't
      deterred by big scary "advanced configuration" menus
 
 More? Probably. See the commit logs.
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Merge tag 'for-linus-20160112' of git://git.infradead.org/linux-mtd

Pull MTD updates from Brian Norris:
 "Generic MTD:

   - populate the MTD device 'of_node' field (and get a proper 'of_node'
     symlink in sysfs)

     This yielded some new helper functions, and changes across a
     variety of drivers

   - partitioning cleanups, to prepare for better device-tree based
     partitioning in the future

     Eliminate a lot of boilerplate for drivers that want to use
     OF-based partition parsing

     The DT bindings for this didn't settle yet, so most non-cleanup
     portions are deferred for a future release

  NAND:

   - embed a struct mtd_info inside struct nand_chip

     This is really long overdue; too many drivers have to do the same
     silly boilerplate to allocate and link up two "independent"
     structs, when in fact, everyone is assuming there is an exact 1:1
     relationship between a NAND chips struct and its underlying MTD.
     This aids improved helpers and should make certain abstractions
     easier in the future.

     Also causes a lot of churn, helped along by some automated code
     transformations

   - add more core support for detecting (and "correcting") bitflips in
     erased pages; requires opt-in by drivers, but at least we kill a
     few bad implementations and hopefully stave off future ones

   - pxa3xx_nand: cleanups, a few fixes, and PM improvements

   - new JZ4780 NAND driver

  SPI NOR:

   - provide default erase function, for controllers that just want to
     send the SECTOR_ERASE command directly

   - fix some module auto-loading issues with device tree
     ("jedec,spi-nor")

   - error handling fixes

   - new Mediatek QSPI flash driver

  Other:

   - cfi: force valid geometry Kconfig (finally!)

     This one used to trip up randconfigs occasionally, since bots
     aren't deterred by big scary "advanced configuration" menus

  More? Probably. See the commit logs"

* tag 'for-linus-20160112' of git://git.infradead.org/linux-mtd: (168 commits)
  mtd: jz4780_nand: replace if/else blocks with switch/case
  mtd: nand: jz4780: Update ecc correction error codes
  mtd: nandsim: use nand_get_controller_data()
  mtd: jz4780_nand: remove useless mtd->priv = chip assignment
  staging: mt29f_spinand: make use of nand_set/get_controller_data() helpers
  mtd: nand: make use of nand_set/get_controller_data() helpers
  ARM: make use of nand_set/get_controller_data() helpers
  mtd: nand: add helpers to access ->priv
  mtd: nand: jz4780: driver for NAND devices on JZ4780 SoCs
  mtd: nand: jz4740: remove custom 'erased check' implementation
  mtd: nand: diskonchip: remove custom 'erased check' implementation
  mtd: nand: davinci: remove custom 'erased check' implementation
  mtd: nand: use nand_check_erased_ecc_chunk in default ECC read functions
  mtd: nand: return consistent error codes in ecc.correct() implementations
  doc: dt: mtd: new binding for jz4780-{nand,bch}
  mtd: cfi_cmdset_0001: fixing memory leak and handling failed kmalloc
  mtd: spi-nor: wait until lock/unlock operations are ready
  mtd: tests: consolidate kmalloc/memset 0 call to kzalloc
  jffs2: use to_delayed_work
  mtd: nand: assign reasonable default name for NAND drivers
  ...
 2016-01-13 11:25:54 -08:00
Linus Torvalds 1c5ff2ab7b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 
Pull input updates from Dmitry Torokhov:
 - new driver for eGalaxTouch serial touchscreen
 - new driver for TS-4800 touchscreen
 - an update for Goodix touchscreen driver
 - PS/2 mouse module was reworked to limit number of protocols we try on
   pass-through ports to speed up their detection time
 - wacom_w8001 touchscreen driver now reports pen and touch via separate
   instances of input devices
 - other driver changes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (42 commits)
  Input: elantech - mark protocols v2 and v3 as semi-mt
  Input: wacom_w8001 - drop use of ABS_MT_TOOL_TYPE
  Input: gpio-keys - fix check for disabling unsupported keys
  Input: omap-keypad - remove dead check
  Input: ti_am335x_tsc - fix HWPEN interrupt handling
  Input: omap-keypad - set tasklet data earlier
  Input: rohm_bu21023 - fix handling of retrying firmware update
  Input: ALPS - report v3 pinnacle trackstick device only if is present
  Input: ALPS - detect trackstick presence for v7 protocol
  Input: pcap_ts - use to_delayed_work
  Input: bma150 - constify bma150_cfg structure
  Input: i8042 - add Fujitsu Lifebook U745 to the nomux list
  Input: egalax_ts_serial - fix potential NULL dereference on error
  Input: uinput - sanity check on ff_effects_max and EV_FF
  Input: uinput - rework ABS validation
  Input: uinput - add new UINPUT_DEV_SETUP and UI_ABS_SETUP ioctl
  Input: goodix - use "inverted_[xy]" flags instead of "rotated_screen"
  Input: goodix - add axis swapping and axis inversion support
  Input: goodix - use goodix_i2c_write_u8 instead of i2c_master_send
  Input: goodix - add power management support
  ...
 2016-01-13 11:14:05 -08:00
Linus Torvalds d6a322774c dmaengine updates for 4.5-rc1 
This round we have few new features, new driver and updates to few drivers.
 
 The new features to dmaengine core are:
 - Synchronized transfer termination API to terminate the dmaengine
     transfers in synchronized and async fashion as required by users.
     We have its user now in ALSA dmaengine lib, img, at_xdma, axi_dmac
     drivers.
 - Universal API for channel request and start consolidation of request
     flows. It's user is ompa-dma driver.
 - Introduce reuse of descriptors and use in pxa_dma driver
 
 Add/Remove:
 - STM32 DMA driver
 - Removal of unused R-Car HPB-DMAC driver
 
 Updates:
 - ti-dma-crossbar updates for supporting eDMA
 - tegra-apb pm updates
 - idma64
 - mv_xor updates
 - ste_dma updates
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Merge tag 'dmaengine-4.5-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine updates from Vinod Koul:
 "This round we have few new features, new driver and updates to few
  drivers.

  The new features to dmaengine core are:
   - Synchronized transfer termination API to terminate the dmaengine
     transfers in synchronized and async fashion as required by users.
     We have its user now in ALSA dmaengine lib, img, at_xdma, axi_dmac
     drivers.
   - Universal API for channel request and start consolidation of
     request flows.  It's user is ompa-dma driver.
   - Introduce reuse of descriptors and use in pxa_dma driver

  Add/Remove:
   - New STM32 DMA driver
   - Removal of unused R-Car HPB-DMAC driver

  Updates:
   - ti-dma-crossbar updates for supporting eDMA
   - tegra-apb pm updates
   - idma64
   - mv_xor updates
   - ste_dma updates"

* tag 'dmaengine-4.5-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (54 commits)
  dmaengine: mv_xor: add suspend/resume support
  dmaengine: mv_xor: de-duplicate mv_chan_set_mode*()
  dmaengine: mv_xor: remove mv_xor_chan->current_type field
  dmaengine: omap-dma: Add support for DMA filter mapping to slave devices
  dmaengine: edma: Add support for DMA filter mapping to slave devices
  dmaengine: core: Introduce new, universal API to request a channel
  dmaengine: core: Move and merge the code paths using private_candidate
  dmaengine: core: Skip mask matching when it is not provided to private_candidate
  dmaengine: mdc: Correct terminate_all handling
  dmaengine: edma: Add probe callback to edma_tptc_driver
  dmaengine: dw: fix potential memory leak in dw_dma_parse_dt()
  dmaengine: stm32-dma: Fix unchecked deference of chan->desc
  dmaengine: sh: Remove unused R-Car HPB-DMAC driver
  dmaengine: usb-dmac: Document SoC specific compatibility strings
  ste_dma40: Delete an unnecessary variable initialisation in d40_probe()
  ste_dma40: Delete another unnecessary check in d40_probe()
  ste_dma40: Delete an unnecessary check before the function call "kmem_cache_destroy"
  dmaengine: tegra-apb: Free interrupts before killing tasklets
  dmaengine: tegra-apb: Update driver to use GFP_NOWAIT
  dmaengine: tegra-apb: Only save channel state for those in use
  ...
 2016-01-13 10:59:52 -08:00
Linus Torvalds 4c257ec37b char/misc patches for 4.5-rc1 
Here's the big set of char/misc patches for 4.5-rc1.
 
 Nothing major, lots of different driver subsystem updates, full details
 in the shortlog.  All of these have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc updates from Greg KH:
 "Here's the big set of char/misc patches for 4.5-rc1.

  Nothing major, lots of different driver subsystem updates, full
  details in the shortlog.  All of these have been in linux-next for a
  while"

* tag 'char-misc-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (71 commits)
  mei: fix fasync return value on error
  parport: avoid assignment in if
  parport: remove unneeded space
  parport: change style of NULL comparison
  parport: remove unnecessary out of memory message
  parport: remove braces
  parport: quoted strings should not be split
  parport: code indent should use tabs
  parport: fix coding style
  parport: EXPORT_SYMBOL should follow function
  parport: remove trailing white space
  parport: fix a trivial typo
  coresight: Fix a typo in Kconfig
  coresight: checking for NULL string in coresight_name_match()
  Drivers: hv: vmbus: Treat Fibre Channel devices as performance critical
  Drivers: hv: utils: fix hvt_op_poll() return value on transport destroy
  Drivers: hv: vmbus: fix the building warning with hyperv-keyboard
  extcon: add Maxim MAX3355 driver
  Drivers: hv: ring_buffer: eliminate hv_ringbuffer_peek()
  Drivers: hv: remove code duplication between vmbus_recvpacket()/vmbus_recvpacket_raw()
  ...
 2016-01-13 10:23:36 -08:00
Linus Torvalds 39272dde8f Staging patches for 4.5-rc1 
Here is the big staging driver pull request for 4.5-rc1.  Lots of
 cleanups and fixes here, not as many as some releases, but 800+ isn't
 that bad.  Full details in the shortlog.  All of these have been in
 linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver updates from Greg KH:
 "Here is the big staging driver pull request for 4.5-rc1.

  Lots of cleanups and fixes here, not as many as some releases, but
  800+ isn't that bad.  Full details in the shortlog.  All of these have
  been in linux-next for a while"

* tag 'staging-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (843 commits)
  Revert "arm64: dts: Add dts files to enable ION on Hi6220 SoC."
  staging: gdm724x: constify tty_port_operations structs
  staging: gdm72xx: add userspace data struct
  staging: gdm72xx: Replace timeval with ktime_t
  iio: adc: ina2xx: Fix incorrect report of data endianness to userspace.
  iio: light: us5182d: Refactor read_raw function
  iio: light: us5182d: Add interrupt support and events
  iio: light: us5182d: Fix enable status inconcistency
  iio: Make IIO value formating function globally available.
  staging: emxx_udc: use list_first_entry_or_null()
  staging/emxx_udc: fix 64-bit warnings
  STAGING: COMEDI: Using kernel types in plx9080.h
  STAGING: COMEDI: Added spaces around binary operators in plx9080.h
  STAGING: COMEDI: Fixed format of comments in plx9080.h
  staging: comedi: comedilib.h: Coding style warning fix for block comments
  staging: comedi: s526: add macros for counter control reg values
  staging: comedi: s526: replace counter mode bitfield struct
  staging: comedi: check for more errors for zero-length write
  staging: comedi: simplify returned errors for comedi_write()
  staging: comedi: return error on "write" if no command set up
  ...
 2016-01-13 10:13:36 -08:00
Linus Torvalds 67ad058d97 TTY/Serial patches for 4.5-rc1 
Here is the big serial/tty driver updates for 4.5-rc1.  Lots of driver
 updates and some tty core changes.  All of these have been in linux-next
 and the details are in the shortlog.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here is the big serial/tty driver update for 4.5-rc1.

  Lots of driver updates and some tty core changes.  All of these have
  been in linux-next and the details are in the shortlog"

* tag 'tty-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (127 commits)
  drivers/tty/serial: delete unused MODULE_DEVICE_TABLE from atmel_serial.c
  serial: sh-sci: Remove cpufreq notifier to fix crash/deadlock
  serial: 8250: of: Fix the driver and actually compile the 8250_of
  tty: amba-pl011: use iotype instead of access_32b to track 32-bit I/O
  tty: amba-pl011: fix earlycon register offsets
  serial: sh-sci: Drop the sci_fck clock fallback
  sh: sh7734: Correct SCIF type for BRG
  sh: Remove sci_ick clock alias
  sh: Rename sci_ick and sci_fck clock to fck
  serial: sh-sci: Add support for optional BRG on (H)SCIF
  serial: sh-sci: Add support for optional external (H)SCK input
  serial: sh-sci: Prepare for multiple sampling clock sources
  serial: sh-sci: Correct SCIF type on R-Car for BRG
  serial: sh-sci: Correct SCIF type on RZ/A1H
  serial: sh-sci: Replace struct sci_port_info by type/regtype encoding
  serial: sh-sci: Add BRG register definitions
  serial: sh-sci: Take into account sampling rate for max baud rate
  serial: sh-sci: Merge sci_scbrr_calc() and sci_baud_calc_hscif()
  serial: sh-sci: Avoid calculating the receive margin for HSCIF
  serial: sh-sci: Improve bit rate error calculation for HSCIF
  ...
 2016-01-13 10:02:05 -08:00
Linus Torvalds 237f38c3b3 USB patches for 4.5-rc1 
Here is the big USB drivers update for 4.5-rc1.  Lots of gadget driver
 updates and fixes, like usual, and a mix of other USB driver updates as
 well.  Full details in the shortlog.  All of these have been in
 linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here is the big USB drivers update for 4.5-rc1.

  Lots of gadget driver updates and fixes, like usual, and a mix of
  other USB driver updates as well.  Full details in the shortlog.  All
  of these have been in linux-next for a while"

* tag 'usb-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (191 commits)
  MAINTAINERS: change my email address
  USB: usbmon: remove assignment from IS_ERR argument
  USB: mxu11x0: drop redundant function name from error messages
  USB: mxu11x0: fix debug-message typos
  USB: mxu11x0: rename usb-serial driver
  USB: mxu11x0: fix modem-control handling on B0-transitions
  USB: mxu11x0: fix memory leak on firmware download
  USB: mxu11x0: fix memory leak in port-probe error path
  USB: serial: add Moxa UPORT 11x0 driver
  USB: cp210x: add ID for ELV Marble Sound Board 1
  usb: chipidea: otg: use usb autosuspend to suspend bus for HNP
  usb: chipidea: host: set host to be null after hcd is freed
  usb: chipidea: removing of_find_property
  usb: chipidea: implement platform shutdown callback
  usb: chipidea: clean up CONFIG_USB_CHIPIDEA_DEBUG reference
  usb: chipidea: delete static debug support
  usb: chipidea: support debugfs without CONFIG_USB_CHIPIDEA_DEBUG
  usb: chipidea: udc: improve error handling on _hardware_enqueue
  usb: chipidea: udc: _ep_queue and _hw_queue cleanup
  usb: dwc3: of-simple: fix build warning on !PM
  ...
 2016-01-13 09:26:40 -08:00
Linus Torvalds 67990608c8 Power management and ACPI updates for v4.5-rc1 
- Add a debugfs-based interface for interacting with the ACPICA's
    AML debugger introduced in the previous cycle and a new user
    space tool for that, fix some bugs related to the AML debugger
    and clean up the code in question (Lv Zheng, Dan Carpenter,
    Colin Ian King, Markus Elfring).
 
  - Update ACPICA to upstream revision 20151218 including a number
    of fixes and cleanups in the ACPICA core (Bob Moore, Lv Zheng,
    Labbe Corentin, Prarit Bhargava, Colin Ian King, David E Box,
    Rafael Wysocki).
 
    In particular, the previously added erroneous support for the
    _SUB object is dropped, the concatenate operator will support
    all ACPI objects now, the Debug Object handling is improved,
    the SuperName handling of parameters being control methods is
    fixed, the ObjectType operator handling is updated to follow
    ACPI 5.0A and the handling of CondRefOf and RefOf is updated
    accordingly, module-level code will be executed after loading
    each ACPI table now (instead of being run once after all tables
    containing AML have been loaded), the Operation Region handlers
    management is updated to fix some reported problems and a the
    ACPICA code in the kernel is more in line with the upstream
    now.
 
  - Update the ACPI backlight driver to provide information on
    whether or not it will generate key-presses for brightness
    change hotkeys and update some platform drivers (dell-wmi,
    thinkpad_acpi) to use that information to avoid sending double
    key-events to users pace for these, add new ACPI backlight
    quirks (Hans de Goede, Aaron Lu, Adrien Schildknecht).
 
  - Improve the ACPI handling of interrupt GPIOs (Christophe Ricard).
 
  - Fix the handling of the list of device IDs of device objects
    found in the ACPI namespace and add a helper for checking if
    there is a device object for a given device ID (Lukas Wunner).
 
  - Change the logic in the ACPI namespace scanning code to create
    struct acpi_device objects for all ACPI device objects found in
    the namespace even if _STA fails for them which helps to avoid
    device enumeration problems on Microsoft Surface 3 (Aaron Lu).
 
  - Add support for the APM X-Gene ACPI I2C device to the ACPI
    driver for AMD SoCs (Loc Ho).
 
  - Fix the long-standing issue with the DMA controller on Intel
    SoCs where ACPI tables have no power management support for
    the DMA controller itself, but it can be powered off automatically
    when the last (other) device on the SoC is powered off via ACPI
    and clean up the ACPI driver for Intel SoCs (acpi-lpss) after
    previous attempts to fix that problem (Andy Shevchenko).
 
  - Assorted ACPI fixes and cleanups (Andy Lutomirski, Colin Ian King,
    Javier Martinez Canillas, Ken Xue, Mathias Krause, Rafael Wysocki,
    Sinan Kaya).
 
  - Update the device properties framework for better handling of
    built-in properties, add support for built-in properties to
    the platform bus type, update the MFD subsystem's handling
    of device properties and add support for passing default
    configuration data as device properties to the intel-lpss MFD
    drivers, convert the designware I2C driver to use the unified
    device properties API and add a fallback mechanism for using
    default built-in properties if the platform firmware fails
    to provide the properties as expected by drivers (Andy Shevchenko,
    Mika Westerberg, Heikki Krogerus, Andrew Morton).
 
  - Add new Device Tree bindings to the Operating Performance Points
    (OPP) framework and update the exynos4412 DT binding accordingly,
    introduce debugfs support for the OPP framework (Viresh Kumar,
    Bartlomiej Zolnierkiewicz).
 
  - Migrate the mt8173 cpufreq driver to the new OPP bindings
    (Pi-Cheng Chen).
 
  - Update the cpufreq core to make the handling of governors
    more efficient, especially on systems where policy objects
    are shared between multiple CPUs (Viresh Kumar, Rafael Wysocki).
 
  - Fix cpufreq governor handling on configurations with
    CONFIG_HZ_PERIODIC set (Chen Yu).
 
  - Clean up the cpufreq core code related to the boost sysfs knob
    support and update the ACPI cpufreq driver accordingly (Rafael
    Wysocki).
 
  - Add a new cpufreq driver for ST platforms and corresponding
    Device Tree bindings (Lee Jones).
 
  - Update the intel_pstate driver to allow the P-state selection
    algorithm used by it to depend on the CPU ID of the processor it
    is running on, make it use a special P-state selection algorithm
    (with an IO wait time compensation tweak) on Atom CPUs based on
    the Airmont and Silvermont cores so as to reduce their energy
    consumption and improve intel_pstate documentation (Philippe
    Longepe, Srinivas Pandruvada).
 
  - Update the cpufreq-dt driver to support registering cooling
    devices that use the (P * V^2 * f) dynamic power draw formula
    where V is the voltage, f is the frequency and P is a constant
    coefficient provided by Device Tree and update the arm_big_little
    cpufreq driver to use that support (Punit Agrawal).
 
  - Assorted cpufreq driver (cpufreq-dt, qoriq, pcc-cpufreq,
    blackfin-cpufreq) updates (Andrzej Hajda, Hongtao Jia,
    Jacob Tanenbaum, Markus Elfring).
 
  - cpuidle core tweaks related to polling and measured_us
    calculation (Rik van Riel).
 
  - Removal of modularity from a few cpuidle drivers (clps711x,
    ux500, exynos) that cannot be built as modules in practice
    (Paul Gortmaker).
 
  - PM core update to prevent devices from being probed during
    system suspend/resume which is generally problematic and may
    lead to inconsistent behavior (Grygorii Strashko).
 
  - Assorted updates of the PM core and related code (Julia Lawall,
    Manuel Pégourié-Gonnard, Maruthi Bayyavarapu, Rafael Wysocki,
    Ulf Hansson).
 
  - PNP bus type updates (Christophe Le Roy, Heiner Kallweit).
 
  - PCI PM code cleanups (Jarkko Nikula, Julia Lawall).
 
  - cpupower tool updates (Jacob Tanenbaum, Thomas Renninger).
 
 /
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Merge tag 'pm+acpi-4.5-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull oower management and ACPI updates from Rafael Wysocki:
 "As far as the number of commits goes, ACPICA takes the lead this time,
  followed by cpufreq and the device properties framework changes.

  The most significant new feature is the debugfs-based interface to the
  ACPICA's AML debugger added in the previous cycle and a new user space
  tool for accessing it.

  On the cpufreq front, the core is updated to handle governors more
  efficiently, particularly on systems where a single cpufreq policy
  object is shared between multiple CPUs, and there are quite a few
  changes in drivers (intel_pstate, cpufreq-dt etc).

  The device properties framework is updated to handle built-in (ie
  included in the kernel itself) device properties better, among other
  things by adding a fallback mechanism that will allow drivers to
  provide default properties to be used in case the plaform firmware
  doesn't provide the properties expected by them.

  The Operating Performance Points (OPP) framework gets new DT bindings
  and debugfs support.

  A new cpufreq driver for ST platforms is added and the ACPI driver for
  AMD SoCs will now support the APM X-Gene ACPI I2C device.

  The rest is mostly fixes and cleanups all over.

  Specifics:

   - Add a debugfs-based interface for interacting with the ACPICA's AML
     debugger introduced in the previous cycle and a new user space tool
     for that, fix some bugs related to the AML debugger and clean up
     the code in question (Lv Zheng, Dan Carpenter, Colin Ian King,
     Markus Elfring).

   - Update ACPICA to upstream revision 20151218 including a number of
     fixes and cleanups in the ACPICA core (Bob Moore, Lv Zheng, Labbe
     Corentin, Prarit Bhargava, Colin Ian King, David E Box, Rafael
     Wysocki).

     In particular, the previously added erroneous support for the _SUB
     object is dropped, the concatenate operator will support all ACPI
     objects now, the Debug Object handling is improved, the SuperName
     handling of parameters being control methods is fixed, the
     ObjectType operator handling is updated to follow ACPI 5.0A and the
     handling of CondRefOf and RefOf is updated accordingly, module-
     level code will be executed after loading each ACPI table now
     (instead of being run once after all tables containing AML have
     been loaded), the Operation Region handlers management is updated
     to fix some reported problems and a the ACPICA code in the kernel
     is more in line with the upstream now.

   - Update the ACPI backlight driver to provide information on whether
     or not it will generate key-presses for brightness change hotkeys
     and update some platform drivers (dell-wmi, thinkpad_acpi) to use
     that information to avoid sending double key-events to users pace
     for these, add new ACPI backlight quirks (Hans de Goede, Aaron Lu,
     Adrien Schildknecht).

   - Improve the ACPI handling of interrupt GPIOs (Christophe Ricard).

   - Fix the handling of the list of device IDs of device objects found
     in the ACPI namespace and add a helper for checking if there is a
     device object for a given device ID (Lukas Wunner).

   - Change the logic in the ACPI namespace scanning code to create
     struct acpi_device objects for all ACPI device objects found in the
     namespace even if _STA fails for them which helps to avoid device
     enumeration problems on Microsoft Surface 3 (Aaron Lu).

   - Add support for the APM X-Gene ACPI I2C device to the ACPI driver
     for AMD SoCs (Loc Ho).

   - Fix the long-standing issue with the DMA controller on Intel SoCs
     where ACPI tables have no power management support for the DMA
     controller itself, but it can be powered off automatically when the
     last (other) device on the SoC is powered off via ACPI and clean up
     the ACPI driver for Intel SoCs (acpi-lpss) after previous attempts
     to fix that problem (Andy Shevchenko).

   - Assorted ACPI fixes and cleanups (Andy Lutomirski, Colin Ian King,
     Javier Martinez Canillas, Ken Xue, Mathias Krause, Rafael Wysocki,
     Sinan Kaya).

   - Update the device properties framework for better handling of
     built-in properties, add support for built-in properties to the
     platform bus type, update the MFD subsystem's handling of device
     properties and add support for passing default configuration data
     as device properties to the intel-lpss MFD drivers, convert the
     designware I2C driver to use the unified device properties API and
     add a fallback mechanism for using default built-in properties if
     the platform firmware fails to provide the properties as expected
     by drivers (Andy Shevchenko, Mika Westerberg, Heikki Krogerus,
     Andrew Morton).

   - Add new Device Tree bindings to the Operating Performance Points
     (OPP) framework and update the exynos4412 DT binding accordingly,
     introduce debugfs support for the OPP framework (Viresh Kumar,
     Bartlomiej Zolnierkiewicz).

   - Migrate the mt8173 cpufreq driver to the new OPP bindings (Pi-Cheng
     Chen).

   - Update the cpufreq core to make the handling of governors more
     efficient, especially on systems where policy objects are shared
     between multiple CPUs (Viresh Kumar, Rafael Wysocki).

   - Fix cpufreq governor handling on configurations with
     CONFIG_HZ_PERIODIC set (Chen Yu).

   - Clean up the cpufreq core code related to the boost sysfs knob
     support and update the ACPI cpufreq driver accordingly (Rafael
     Wysocki).

   - Add a new cpufreq driver for ST platforms and corresponding Device
     Tree bindings (Lee Jones).

   - Update the intel_pstate driver to allow the P-state selection
     algorithm used by it to depend on the CPU ID of the processor it is
     running on, make it use a special P-state selection algorithm (with
     an IO wait time compensation tweak) on Atom CPUs based on the
     Airmont and Silvermont cores so as to reduce their energy
     consumption and improve intel_pstate documentation (Philippe
     Longepe, Srinivas Pandruvada).

   - Update the cpufreq-dt driver to support registering cooling devices
     that use the (P * V^2 * f) dynamic power draw formula where V is
     the voltage, f is the frequency and P is a constant coefficient
     provided by Device Tree and update the arm_big_little cpufreq
     driver to use that support (Punit Agrawal).

   - Assorted cpufreq driver (cpufreq-dt, qoriq, pcc-cpufreq,
     blackfin-cpufreq) updates (Andrzej Hajda, Hongtao Jia, Jacob
     Tanenbaum, Markus Elfring).

   - cpuidle core tweaks related to polling and measured_us calculation
     (Rik van Riel).

   - Removal of modularity from a few cpuidle drivers (clps711x, ux500,
     exynos) that cannot be built as modules in practice (Paul
     Gortmaker).

   - PM core update to prevent devices from being probed during system
     suspend/resume which is generally problematic and may lead to
     inconsistent behavior (Grygorii Strashko).

   - Assorted updates of the PM core and related code (Julia Lawall,
     Manuel Pégourié-Gonnard, Maruthi Bayyavarapu, Rafael Wysocki, Ulf
     Hansson).

   - PNP bus type updates (Christophe Le Roy, Heiner Kallweit).

   - PCI PM code cleanups (Jarkko Nikula, Julia Lawall).

   - cpupower tool updates (Jacob Tanenbaum, Thomas Renninger)"

* tag 'pm+acpi-4.5-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (177 commits)
  PM / clk: don't leave clocks enabled when driver not bound
  i2c: dw: Add APM X-Gene ACPI I2C device support
  ACPI / APD: Add APM X-Gene ACPI I2C device support
  ACPI / LPSS: change 'does not have' to 'has' in comment
  Revert "dmaengine: dw: platform: provide platform data for Intel"
  dmaengine: dw: return immediately from IRQ when DMA isn't in use
  dmaengine: dw: platform: power on device on shutdown
  ACPI / LPSS: override power state for LPSS DMA device
  PM / OPP: Use snprintf() instead of sprintf()
  Documentation: cpufreq: intel_pstate: enhance documentation
  ACPI, PCI, irq: remove redundant check for null string pointer
  ACPI / video: driver must be registered before checking for keypresses
  cpufreq-dt: fix handling regulator_get_voltage() result
  cpufreq: governor: Fix negative idle_time when configured with CONFIG_HZ_PERIODIC
  PM / sleep: Add support for read-only sysfs attributes
  ACPI: Fix white space in a structure definition
  ACPI / SBS: fix inconsistent indenting inside if statement
  PNP: respect PNP_DRIVER_RES_DO_NOT_CHANGE when detaching
  ACPI / PNP: constify device IDs
  ACPI / PCI: Simplify acpi_penalize_isa_irq()
  ...
 2016-01-12 20:25:09 -08:00
Linus Torvalds 34a9304a96 Merge branch 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 
Pull cgroup updates from Tejun Heo:

 - cgroup v2 interface is now official.  It's no longer hidden behind a
   devel flag and can be mounted using the new cgroup2 fs type.

   Unfortunately, cpu v2 interface hasn't made it yet due to the
   discussion around in-process hierarchical resource distribution and
   only memory and io controllers can be used on the v2 interface at the
   moment.

 - The existing documentation which has always been a bit of mess is
   relocated under Documentation/cgroup-v1/. Documentation/cgroup-v2.txt
   is added as the authoritative documentation for the v2 interface.

 - Some features are added through for-4.5-ancestor-test branch to
   enable netfilter xt_cgroup match to use cgroup v2 paths.  The actual
   netfilter changes will be merged through the net tree which pulled in
   the said branch.

 - Various cleanups

* 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: rename cgroup documentations
  cgroup: fix a typo.
  cgroup: Remove resource_counter.txt in Documentation/cgroup-legacy/00-INDEX.
  cgroup: demote subsystem init messages to KERN_DEBUG
  cgroup: Fix uninitialized variable warning
  cgroup: put controller Kconfig options in meaningful order
  cgroup: clean up the kernel configuration menu nomenclature
  cgroup_pids: fix a typo.
  Subject: cgroup: Fix incomplete dd command in blkio documentation
  cgroup: kill cgrp_ss_priv[CGROUP_CANFORK_COUNT] and friends
  cpuset: Replace all instances of time_t with time64_t
  cgroup: replace unified-hierarchy.txt with a proper cgroup v2 documentation
  cgroup: rename Documentation/cgroups/ to Documentation/cgroup-legacy/
  cgroup: replace __DEVEL__sane_behavior with cgroup2 fs type
 2016-01-12 19:20:32 -08:00
Linus Torvalds aee3bfa330 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 
Pull networking updates from Davic Miller:

 1) Support busy polling generically, for all NAPI drivers.  From Eric
    Dumazet.

 2) Add byte/packet counter support to nft_ct, from Floriani Westphal.

 3) Add RSS/XPS support to mvneta driver, from Gregory Clement.

 4) Implement IPV6_HDRINCL socket option for raw sockets, from Hannes
    Frederic Sowa.

 5) Add support for T6 adapter to cxgb4 driver, from Hariprasad Shenai.

 6) Add support for VLAN device bridging to mlxsw switch driver, from
    Ido Schimmel.

 7) Add driver for Netronome NFP4000/NFP6000, from Jakub Kicinski.

 8) Provide hwmon interface to mlxsw switch driver, from Jiri Pirko.

 9) Reorganize wireless drivers into per-vendor directories just like we
    do for ethernet drivers.  From Kalle Valo.

10) Provide a way for administrators "destroy" connected sockets via the
    SOCK_DESTROY socket netlink diag operation.  From Lorenzo Colitti.

11) Add support to add/remove multicast routes via netlink, from Nikolay
    Aleksandrov.

12) Make TCP keepalive settings per-namespace, from Nikolay Borisov.

13) Add forwarding and packet duplication facilities to nf_tables, from
    Pablo Neira Ayuso.

14) Dead route support in MPLS, from Roopa Prabhu.

15) TSO support for thunderx chips, from Sunil Goutham.

16) Add driver for IBM's System i/p VNIC protocol, from Thomas Falcon.

17) Rationalize, consolidate, and more completely document the checksum
    offloading facilities in the networking stack.  From Tom Herbert.

18) Support aborting an ongoing scan in mac80211/cfg80211, from
    Vidyullatha Kanchanapally.

19) Use per-bucket spinlock for bpf hash facility, from Tom Leiming.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1375 commits)
  net: bnxt: always return values from _bnxt_get_max_rings
  net: bpf: reject invalid shifts
  phonet: properly unshare skbs in phonet_rcv()
  dwc_eth_qos: Fix dma address for multi-fragment skbs
  phy: remove an unneeded condition
  mdio: remove an unneed condition
  mdio_bus: NULL dereference on allocation error
  net: Fix typo in netdev_intersect_features
  net: freescale: mac-fec: Fix build error from phy_device API change
  net: freescale: ucc_geth: Fix build error from phy_device API change
  bonding: Prevent IPv6 link local address on enslaved devices
  IB/mlx5: Add flow steering support
  net/mlx5_core: Export flow steering API
  net/mlx5_core: Make ipv4/ipv6 location more clear
  net/mlx5_core: Enable flow steering support for the IB driver
  net/mlx5_core: Initialize namespaces only when supported by device
  net/mlx5_core: Set priority attributes
  net/mlx5_core: Connect flow tables
  net/mlx5_core: Introduce modify flow table command
  net/mlx5_core: Managing root flow table
  ...
 2016-01-12 18:57:02 -08:00
Linus Torvalds c597b6bcd5 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 
Pull crypto update from Herbert Xu:
 "Algorithms:
   - Add RSA padding algorithm

  Drivers:
   - Add GCM mode support to atmel
   - Add atmel support for SAMA5D2 devices
   - Add cipher modes to talitos
   - Add rockchip driver for rk3288
   - Add qat support for C3XXX and C62X"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (103 commits)
  crypto: hifn_795x, picoxcell - use ablkcipher_request_cast
  crypto: qat - fix SKU definiftion for c3xxx dev
  crypto: qat - Fix random config build issue
  crypto: ccp - use to_pci_dev and to_platform_device
  crypto: qat - Rename dh895xcc mmp firmware
  crypto: 842 - remove WARN inside printk
  crypto: atmel-aes - add debug facilities to monitor register accesses.
  crypto: atmel-aes - add support to GCM mode
  crypto: atmel-aes - change the DMA threshold
  crypto: atmel-aes - fix the counter overflow in CTR mode
  crypto: atmel-aes - fix atmel-ctr-aes driver for RFC 3686
  crypto: atmel-aes - create sections to regroup functions by usage
  crypto: atmel-aes - fix typo and indentation
  crypto: atmel-aes - use SIZE_IN_WORDS() helper macro
  crypto: atmel-aes - improve performances of data transfer
  crypto: atmel-aes - fix atmel_aes_remove()
  crypto: atmel-aes - remove useless AES_FLAGS_DMA flag
  crypto: atmel-aes - reduce latency of DMA completion
  crypto: atmel-aes - remove unused 'err' member of struct atmel_aes_dev
  crypto: atmel-aes - rework crypto request completion
  ...
 2016-01-12 18:51:14 -08:00
Linus Torvalds 420d12d6ad Configfs changes for the 4.5 merge window: 
- I'm assisting Joel as co-maintainer and patch monkey now, and you will
    see pull reuquests from me for a while
  - Besides the MAINTAINERS update there is just a single change, which
    adds support for binary attributes to configfs, which are very similar
    to the sysfs binary attributes.  Thanks to Pantelis Antoniou!
  - You will see another actually bigger set of configfs changes in the
    SCSI target pull from Nic - those were merged before this new tree
    even existed
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Merge tag 'configfs-for-linus' of git://git.infradead.org/users/hch/configfs

Pull configfs updates from Christoph Hellwig:
 "I'm assisting Joel as co-maintainer and patch monkey now, and you will
  see pull reuquests from me for a while.

  Besides the MAINTAINERS update there is just a single change, which
  adds support for binary attributes to configfs, which are very similar
  to the sysfs binary attributes.  Thanks to Pantelis Antoniou!

  You will see another actually bigger set of configfs changes in the
  SCSI target pull from Nic - those were merged before this new tree
  even existed"

* tag 'configfs-for-linus' of git://git.infradead.org/users/hch/configfs:
  configfs: add myself as co-maintainer, updated git tree
  configfs: implement binary attributes
 2016-01-12 18:15:34 -08:00
Linus Torvalds 33caf82acf Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull misc vfs updates from Al Viro:
 "All kinds of stuff.  That probably should've been 5 or 6 separate
  branches, but by the time I'd realized how large and mixed that bag
  had become it had been too close to -final to play with rebasing.

  Some fs/namei.c cleanups there, memdup_user_nul() introduction and
  switching open-coded instances, burying long-dead code, whack-a-mole
  of various kinds, several new helpers for ->llseek(), assorted
  cleanups and fixes from various people, etc.

  One piece probably deserves special mention - Neil's
  lookup_one_len_unlocked().  Similar to lookup_one_len(), but gets
  called without ->i_mutex and tries to avoid ever taking it.  That, of
  course, means that it's not useful for any directory modifications,
  but things like getting inode attributes in nfds readdirplus are fine
  with that.  I really should've asked for moratorium on lookup-related
  changes this cycle, but since I hadn't done that early enough...  I
  *am* asking for that for the coming cycle, though - I'm going to try
  and get conversion of i_mutex to rwsem with ->lookup() done under lock
  taken shared.

  There will be a patch closer to the end of the window, along the lines
  of the one Linus had posted last May - mechanical conversion of
  ->i_mutex accesses to inode_lock()/inode_unlock()/inode_trylock()/
  inode_is_locked()/inode_lock_nested().  To quote Linus back then:

    -----
    |    This is an automated patch using
    |
    |        sed 's/mutex_lock(&\(.*\)->i_mutex)/inode_lock(\1)/'
    |        sed 's/mutex_unlock(&\(.*\)->i_mutex)/inode_unlock(\1)/'
    |        sed 's/mutex_lock_nested(&\(.*\)->i_mutex,[     ]*I_MUTEX_\([A-Z0-9_]*\))/inode_lock_nested(\1, I_MUTEX_\2)/'
    |        sed 's/mutex_is_locked(&\(.*\)->i_mutex)/inode_is_locked(\1)/'
    |        sed 's/mutex_trylock(&\(.*\)->i_mutex)/inode_trylock(\1)/'
    |
    |    with a very few manual fixups
    -----

  I'm going to send that once the ->i_mutex-affecting stuff in -next
  gets mostly merged (or when Linus says he's about to stop taking
  merges)"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
  nfsd: don't hold i_mutex over userspace upcalls
  fs:affs:Replace time_t with time64_t
  fs/9p: use fscache mutex rather than spinlock
  proc: add a reschedule point in proc_readfd_common()
  logfs: constify logfs_block_ops structures
  fcntl: allow to set O_DIRECT flag on pipe
  fs: __generic_file_splice_read retry lookup on AOP_TRUNCATED_PAGE
  fs: xattr: Use kvfree()
  [s390] page_to_phys() always returns a multiple of PAGE_SIZE
  nbd: use ->compat_ioctl()
  fs: use block_device name vsprintf helper
  lib/vsprintf: add %*pg format specifier
  fs: use gendisk->disk_name where possible
  poll: plug an unused argument to do_poll
  amdkfd: don't open-code memdup_user()
  cdrom: don't open-code memdup_user()
  rsxx: don't open-code memdup_user()
  mtip32xx: don't open-code memdup_user()
  [um] mconsole: don't open-code memdup_user_nul()
  [um] hostaudio: don't open-code memdup_user()
  ...
 2016-01-12 17:11:47 -08:00
Linus Torvalds 4f31d774dd Merge branch 'for-linus-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml 
Pull UML updates from Richard Weinberger:
 "This contains beside of random fixes/cleanups two bigger changes:

   - seccomp support by Mickaël Salaün

   - IRQ rework by Anton Ivanov"

* 'for-linus-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: Use race-free temporary file creation
  um: Do not set unsecure permission for temporary file
  um: Fix build error and kconfig for i386
  um: Add seccomp support
  um: Add full asm/syscall.h support
  selftests/seccomp: Remove the need for HAVE_ARCH_TRACEHOOK
  um: Fix ptrace GETREGS/SETREGS bugs
  um: link with -lpthread
  um: Update UBD to use pread/pwrite family of functions
  um: Do not change hard IRQ flags in soft IRQ processing
  um: Prevent IRQ handler reentrancy
  uml: flush stdout before forking
  uml: fix hostfs mknod()
 2016-01-12 13:27:18 -08:00
Linus Torvalds 1baa5efbeb * s390: Support for runtime instrumentation within guests, 
support of 248 VCPUs.
 
 * ARM: rewrite of the arm64 world switch in C, support for
 16-bit VM identifiers.  Performance counter virtualization
 missed the boat.
 
 * x86: Support for more Hyper-V features (synthetic interrupt
 controller), MMU cleanups
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "PPC changes will come next week.

   - s390: Support for runtime instrumentation within guests, support of
     248 VCPUs.

   - ARM: rewrite of the arm64 world switch in C, support for 16-bit VM
     identifiers.  Performance counter virtualization missed the boat.

   - x86: Support for more Hyper-V features (synthetic interrupt
     controller), MMU cleanups"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (115 commits)
  kvm: x86: Fix vmwrite to SECONDARY_VM_EXEC_CONTROL
  kvm/x86: Hyper-V SynIC timers tracepoints
  kvm/x86: Hyper-V SynIC tracepoints
  kvm/x86: Update SynIC timers on guest entry only
  kvm/x86: Skip SynIC vector check for QEMU side
  kvm/x86: Hyper-V fix SynIC timer disabling condition
  kvm/x86: Reorg stimer_expiration() to better control timer restart
  kvm/x86: Hyper-V unify stimer_start() and stimer_restart()
  kvm/x86: Drop stimer_stop() function
  kvm/x86: Hyper-V timers fix incorrect logical operation
  KVM: move architecture-dependent requests to arch/
  KVM: renumber vcpu->request bits
  KVM: document which architecture uses each request bit
  KVM: Remove unused KVM_REQ_KICK to save a bit in vcpu->requests
  kvm: x86: Check kvm_write_guest return value in kvm_write_wall_clock
  KVM: s390: implement the RI support of guest
  kvm/s390: drop unpaired smp_mb
  kvm: x86: fix comment about {mmu,nested_mmu}.gva_to_gpa
  KVM: x86: MMU: Use clear_page() instead of init_shadow_page_table()
  arm/arm64: KVM: Detect vGIC presence at runtime
  ...
 2016-01-12 13:22:12 -08:00
Linus Torvalds 01e9d22638 Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 
Pull ARM updates from Russell King:

 - UEFI boot and runtime services support for ARM from Ard Biesheuvel
   and Roy Franz.

 - DT compatibility with old atags booting protocol for Nokia N900
   devices from Ivaylo Dimitrov.

 - PSCI firmware interface using new arm-smc calling convention from
   Jens Wiklander.

 - Runtime patching for udiv/sdiv instructions for ARMv7 CPUs that
   support these instructions from Nicolas Pitre.

 - L2x0 cache updates from Dirk B and Linus Walleij.

 - Randconfig fixes from Arnd Bergmann.

 - ARMv7M (nommu) updates from Ezequiel Garcia

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (34 commits)
  ARM: 8481/2: drivers: psci: replace psci firmware calls
  ARM: 8480/2: arm64: add implementation for arm-smccc
  ARM: 8479/2: add implementation for arm-smccc
  ARM: 8478/2: arm/arm64: add arm-smccc
  ARM: 8494/1: mm: Enable PXN when running non-LPAE kernel on LPAE processor
  ARM: 8496/1: OMAP: RX51: save ATAGS data in the early boot stage
  ARM: 8495/1: ATAGS: move save_atags() to arch/arm/include/asm/setup.h
  ARM: 8452/3: PJ4: make coprocessor access sequences buildable in Thumb2 mode
  ARM: 8482/1: l2x0: make it possible to disable outer sync from DT
  ARM: 8488/1: Make IPI_CPU_BACKTRACE a "non-secure" SGI
  ARM: 8487/1: Remove IPI_CALL_FUNC_SINGLE
  ARM: 8485/1: cpuidle: remove cpu parameter from the cpuidle_ops suspend hook
  ARM: 8484/1: Documentation: l2c2x0: Mention separate controllers explicitly
  ARM: 8483/1: Documentation: l2c: Rename l2cc to l2c2x0
  ARM: 8477/1: runtime patch udiv/sdiv instructions into __aeabi_{u}idiv()
  ARM: 8476/1: VDSO: use PTR_ERR_OR_ZERO for vma check
  ARM: 8453/2: proc-v7.S: don't locate temporary stack space in .text section
  ARM: add UEFI stub support
  ARM: wire up UEFI init and runtime support
  ARM: only consider memblocks with NOMAP cleared for linear mapping
  ...
 2016-01-12 12:39:07 -08:00
Linus Torvalds 541d284be0 arm[64] perf updates for 4.5: 
- Support for the CPU PMU in Cortex-A72
 
 - Add sysfs entries to describe the architected events and their
   mappings for PMUv{1-3}
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Merge tag 'arm64-perf' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm[64] perf updates from Will Deacon:
 "In the past, I have funnelled perf updates through the respective
  architecture trees, but now that the arm/arm64 perf driver has been
  largely consolidated under drivers/perf/, it makes more sense to send
  a separate pull, particularly as I'm listed as maintainer for all the
  files involved.  I offered the branch to arm-soc, but Arnd suggested
  that I just send it to you directly.

  So, here is the arm/arm64 perf queue for 4.5.  The main features are
  described below, but the most useful change is from Drew, which
  advertises our architected event mapping in sysfs so that the perf
  tool is a lot more user friendly and no longer requires the use of
  magic hex constants for profiling common events.

   - Support for the CPU PMU in Cortex-A72

   - Add sysfs entries to describe the architected events and their
     mappings for PMUv{1-3}"

* tag 'arm64-perf' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: perf: add support for Cortex-A72
  arm64: perf: add format entry to describe event -> config mapping
  ARM: perf: add format entry to describe event -> config mapping
  arm64: kernel: enforce pmuserenr_el0 initialization and restore
  arm64: perf: Correct Cortex-A53/A57 compatible values
  arm64: perf: Add event descriptions
  arm64: perf: Convert event enums to #defines
  arm: perf: Add event descriptions
  arm: perf: Convert event enums to #defines
  drivers/perf: kill armpmu_register
 2016-01-12 12:29:25 -08:00
Linus Torvalds fa5fd7c628 arm64 updates for 4.5: 
- Support for a separate IRQ stack, although we haven't reduced the size
   of our thread stack just yet since we don't have enough data to
   determine a safe value
 
 - Refactoring of our EFI initialisation and runtime code into
   drivers/firmware/efi/ so that it can be reused by arch/arm/.
 
 - Ftrace improvements when unwinding in the function graph tracer
 
 - Document our silicon errata handling process
 
 - Cache flushing optimisation when mapping executable pages
 
 - Support for hugetlb mappings using the contiguous hint in the pte
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 "Here is the core arm64 queue for 4.5.  As you might expect, the
  Christmas break resulted in a number of patches not making the final
  cut, so 4.6 is likely to be larger than usual.  There's still some
  useful stuff here, however, and it's detailed below.

  The EFI changes have been Reviewed-by Matt and the memblock change got
  an "OK" from akpm.

  Summary:

   - Support for a separate IRQ stack, although we haven't reduced the
     size of our thread stack just yet since we don't have enough data
     to determine a safe value

   - Refactoring of our EFI initialisation and runtime code into
     drivers/firmware/efi/ so that it can be reused by arch/arm/.

   - Ftrace improvements when unwinding in the function graph tracer

   - Document our silicon errata handling process

   - Cache flushing optimisation when mapping executable pages

   - Support for hugetlb mappings using the contiguous hint in the pte"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (45 commits)
  arm64: head.S: use memset to clear BSS
  efi: stub: define DISABLE_BRANCH_PROFILING for all architectures
  arm64: entry: remove pointless SPSR mode check
  arm64: mm: move pgd_cache initialisation to pgtable_cache_init
  arm64: module: avoid undefined shift behavior in reloc_data()
  arm64: module: fix relocation of movz instruction with negative immediate
  arm64: traps: address fallout from printk -> pr_* conversion
  arm64: ftrace: fix a stack tracer's output under function graph tracer
  arm64: pass a task parameter to unwind_frame()
  arm64: ftrace: modify a stack frame in a safe way
  arm64: remove irq_count and do_softirq_own_stack()
  arm64: hugetlb: add support for PTE contiguous bit
  arm64: Use PoU cache instr for I/D coherency
  arm64: Defer dcache flush in __cpu_copy_user_page
  arm64: reduce stack use in irq_handler
  arm64: mm: ensure that the zero page is visible to the page table walker
  arm64: Documentation: add list of software workarounds for errata
  arm64: mm: place __cpu_setup in .text
  arm64: cmpxchg: Don't incldue linux/mmdebug.h
  arm64: mm: fold alternatives into .init
  ...
 2016-01-12 12:23:33 -08:00
Linus Torvalds 03891f9c85 - The most significant set of changes this cycle is the Forward Error 
Correction (FEC) support that has been added to the DM verity target.
   Google uses DM verity on all Android devices and it is believed that
   this FEC support will enable DM verity to recover from storage
   failures seen since DM verity was first deployed as part of Android.
 
 - A stable fix for a race in the destruction of DM thin pool's workqueue
 
 - A stable fix for hung IO if a DM snapshot copy hit an error
 
 - A few small cleanups in DM core and DM persistent data.
 
 - A couple DM thinp range discard improvements (address atomicity of
   finding a range and the efficiency of discarding a partially mapped
   thin device)
 
 - Add ability to debug DM bufio leaks by recording stack trace when a
   buffer is allocated.  Upon detected leak the recorded stack is dumped.
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Merge tag 'dm-4.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mike Snitzer:

 - The most significant set of changes this cycle is the Forward Error
   Correction (FEC) support that has been added to the DM verity target.

   Google uses DM verity on all Android devices and it is believed that
   this FEC support will enable DM verity to recover from storage
   failures seen since DM verity was first deployed as part of Android.

 - A stable fix for a race in the destruction of DM thin pool's
   workqueue

 - A stable fix for hung IO if a DM snapshot copy hit an error

 - A few small cleanups in DM core and DM persistent data.

 - A couple DM thinp range discard improvements (address atomicity of
   finding a range and the efficiency of discarding a partially mapped
   thin device)

 - Add ability to debug DM bufio leaks by recording stack trace when a
   buffer is allocated.  Upon detected leak the recorded stack is
   dumped.

* tag 'dm-4.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm snapshot: fix hung bios when copy error occurs
  dm thin: bump thin and thin-pool target versions
  dm thin: fix race condition when destroying thin pool workqueue
  dm space map metadata: remove unused variable in brb_pop()
  dm verity: add ignore_zero_blocks feature
  dm verity: add support for forward error correction
  dm verity: factor out verity_for_bv_block()
  dm verity: factor out structures and functions useful to separate object
  dm verity: move dm-verity.c to dm-verity-target.c
  dm verity: separate function for parsing opt args
  dm verity: clean up duplicate hashing code
  dm btree: factor out need_insert() helper
  dm bufio: use BUG_ON instead of conditional call to BUG
  dm bufio: store stacktrace in buffers to help find buffer leaks
  dm bufio: return NULL to improve code clarity
  dm block manager: cleanup code that prints stacktrace
  dm: don't save and restore bi_private
  dm thin metadata: make dm_thin_find_mapped_range() atomic
  dm thin metadata: speed up discard of partially mapped volumes
 2016-01-11 22:25:00 -08:00
Linus Torvalds 47c62e4be7 media updates for v4.5-rc1 
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Merge tag 'media/v4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 "The part of patches for Kernel 4.5.  There's nothing really big here:

   - driver-specific headers for media devices were moved to separate
     directories, in order to make clear what headers belong to the core
     kABI and require documentation

   - Platform data for media drivers were moved from include/media to
     include/linux/platform_data/media

   - add a driver for cs3308 8-channel volume control, used on some
     high-end capture boards

   - lirc.h kAPI header were added at include/uapi/linux

   - Driver cleanups, new board additions and improvements"

* tag 'media/v4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (204 commits)
  [media] rc: sunxi-cir: Initialize the spinlock properly
  [media] rtl2832: do not filter out slave TS null packets
  [media] rtl2832: print reg number on error case
  [media] rtl28xxu: return demod reg page from driver cache
  [media] coda: enable MPEG-2 ES decoding
  [media] coda: don't start streaming without queued buffers
  [media] coda: hook up vidioc_prepare_buf
  [media] coda: relax coda_jpeg_check_buffer for trailing bytes
  [media] coda: make to_coda_video_device static
  [media] s5p-mfc: remove volatile attribute from MFC register addresses
  [media] s5p-mfc: merge together s5p_mfc_hw_call and s5p_mfc_hw_call_void
  [media] s5p-mfc: use spinlock to protect MFC context
  [media] s5p-mfc: remove unnecessary callbacks
  [media] s5p-mfc: make queue cleanup code common
  [media] s5p-mfc: use one implementation of s5p_mfc_get_new_ctx
  [media] s5p-mfc: constify s5p_mfc_codec_ops structures
  [media] au8522: Avoid memory leak for device config data
  [media] ir-lirc-codec.c: don't leak lirc->drv-rbuf
  [media] uvcvideo: small cleanup in uvc_video_clock_update()
  [media] uvcvideo: Fix reading the current exposure value of UVC
  ...
 2016-01-11 22:17:44 -08:00
Linus Torvalds 2c487121e3 - LED core improvements: 
- use EXPORT_SYMBOL_GPL consistently,
         - add two new LED_BLINK_ flags,
         - rename brightness_set_sync op to brightness_set_blocking,
         - add led_set_brightness_nosleep{nopm} functions,
         - use set_brightness_work for the blocking op,
         - drivers shouldn't enforce SYNC/ASYNC brightness setting,
         - turn off the LED and wait for completion on unregistering LED
           class device,
         - add managed version of led_trigger_register,
         - add description of brightness setting API to the LED class doc.
 
 - Remove work queues from drivers: leds-tlc591xx, leds-88pm860x, leds-adp5520,
         leds-bd2802, leds-blinkm, leds-lm3533, leds-lm3642, leds-pca9532,
         leds-lp3944, leds-lp55xx, leds-lp8788, leds-lp8860, leds-pca955x,
         leds-pca963x, leds-wm831x, leds-da903x, leds-da9052, leds-dac124d085,
         leds-lt3593, leds-max8997, leds-mc13783, leds-regulator, leds-wm8350,
         leds-max77693, leds-aat1290, leds-ktd2692, leds-gpio, leds-pwm,
         leds-lm355x, leds-ns2.
 
 - Replace brightness_set op with a new brightness_set_blocking op to make the
   drivers compatible with led triggers: leds-ipaq-micro, leds-powernv.
 
 - Add missing of_node_put: leds-ktd2692, leds-aat1290, leds-max77693.
 
 - Make the driver explicitly non-modular: ledtrig-cpu, ledtrig-ide-disk,
         leds-syscon.
 
 - Improvements to leds-bcm6328:
         - reuse bcm6328_led_set() instead of copying its functionality,
         - swap LED ON and OFF definitions,
         - improve blink support,
         - simplify duplicated unlock in bcm6328_blink_set,
         - add little endian support,
         - remove unneded lock when checking initial LED status,
         - add HAS_IOMEM dependency,
         - code cleaning.
 
 - Improvements to leds-bcm6358:
         - use bcm6358_led_set() in order to get rid of the lock,
         - merge bcm6358_led_mode and bcm6358_led_set,
         - add little endian support,
         - remove unneded lock when checking initial LED status,
         - add HAS_IOMEM dependency,
         - remove unneeded busy status check.
 
 - Call led_pwm_set() in leds-pwm to enforce default LED_OFF.
 
 - Fix duration to be msec instead of jiffies: ledtrig-transient.
 
 - Removing NULL check: leds-powernv.
 
 - Use platform_register/unregister_drivers(): leds-sunfire.
 
 - Fix module license specification: ledtrig-oneshot.
 
 - Fix driver description and make license match the header: leds-pwm.
 
 - Remove checking for state < 1 in flash_strobe_store(): led-class-flash.
 
 - Use led_set_brightness_sync for torch brightness: v4l2-flash-led-class
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Merge tag 'leds-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds

Pull LED subsystem updates from Jacek Anaszewski:
 "Besides regular driver updates, we introduce a portion of LED core
  improvements, that allow to avoid the need for using work queues in
  the LED class drivers, that set brightness in a blocking way.

  Affected LED class drivers are being optimized accordingly.

   - LED core improvements:
        - use EXPORT_SYMBOL_GPL consistently,
        - add two new LED_BLINK_ flags,
        - rename brightness_set_sync op to brightness_set_blocking,
        - add led_set_brightness_nosleep{nopm} functions,
        - use set_brightness_work for the blocking op,
        - drivers shouldn't enforce SYNC/ASYNC brightness setting,
        - turn off the LED and wait for completion on unregistering LED
          class device,
        - add managed version of led_trigger_register,
        - add description of brightness setting API to the LED class doc.

   - Remove work queues from drivers: leds-tlc591xx, leds-88pm860x, leds-adp5520,
        leds-bd2802, leds-blinkm, leds-lm3533, leds-lm3642, leds-pca9532,
        leds-lp3944, leds-lp55xx, leds-lp8788, leds-lp8860, leds-pca955x,
        leds-pca963x, leds-wm831x, leds-da903x, leds-da9052, leds-dac124d085,
        leds-lt3593, leds-max8997, leds-mc13783, leds-regulator, leds-wm8350,
        leds-max77693, leds-aat1290, leds-ktd2692, leds-gpio, leds-pwm,
        leds-lm355x, leds-ns2.

   - Replace brightness_set op with a new brightness_set_blocking op to
     make the drivers compatible with led triggers: leds-ipaq-micro,
     leds-powernv.

   - Add missing of_node_put: leds-ktd2692, leds-aat1290, leds-max77693.

   - Make the driver explicitly non-modular: ledtrig-cpu,
     ledtrig-ide-disk, leds-syscon.

   - Improvements to leds-bcm6328:
        - reuse bcm6328_led_set() instead of copying its functionality,
        - swap LED ON and OFF definitions,
        - improve blink support,
        - simplify duplicated unlock in bcm6328_blink_set,
        - add little endian support,
        - remove unneded lock when checking initial LED status,
        - add HAS_IOMEM dependency,
        - code cleaning.

   - Improvements to leds-bcm6358:
        - use bcm6358_led_set() in order to get rid of the lock,
        - merge bcm6358_led_mode and bcm6358_led_set,
        - add little endian support,
        - remove unneded lock when checking initial LED status,
        - add HAS_IOMEM dependency,
        - remove unneeded busy status check.

   - Call led_pwm_set() in leds-pwm to enforce default LED_OFF.

   - Fix duration to be msec instead of jiffies: ledtrig-transient.

   - Removing NULL check: leds-powernv.

   - Use platform_register/unregister_drivers(): leds-sunfire.

   - Fix module license specification: ledtrig-oneshot.

   - Fix driver description and make license match the header: leds-pwm.

   - Remove checking for state < 1 in flash_strobe_store():
     led-class-flash.

   - Use led_set_brightness_sync for torch brightness:
     v4l2-flash-led-class"

* tag 'leds-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: (68 commits)
  leds: add HAS_IOMEM dependency to LEDS_BCM6328/LEDS_BCM6358
  leds: core: add managed version of led_trigger_register
  leds: bcm6358: remove unneeded busy status check
  leds: bcm6328: improve blink support
  leds: bcm6358: merge bcm6358_led_mode and bcm6358_led_set
  leds: bcm6328: simplify duplicated unlock in bcm6328_blink_set
  leds: bcm6358: add little endian support
  leds: bcm6328: add little endian support
  leds: bcm6358: remove unneded lock when checking initial LED status
  leds: bcm6358: Use bcm6358_led_set() in order to get rid of the lock
  leds: bcm6328: remove unneded lock when checking initial LED
  leds: bcm6328: code cleaning
  leds: syscon: Make the driver explicitly non-modular
  leds: ledtrig-ide-disk: Make the driver explicitly non-modular
  leds: ledtrig-cpu: Make the driver explicitly non-modular
  leds: sunfire: Use platform_register/unregister_drivers()
  leds: max77693: Add missing of_node_put
  leds: aat1290: Add missing of_node_put
  leds: powernv: Implement brightness_set_blocking op
  leds: ipaq-micro: Implement brightness_set_blocking op
  ...
 2016-01-11 20:40:48 -08:00
Linus Torvalds d870a9d5e3 * hide EDAC workqueue from users (Borislav Petkov) 
* edac_subsys init/teardown cleanup (Borislav Petkov)
 
 * make mpc85xx-pci-edac a platform device (Scott Wood)
 
 * sb_edac KNL gen2 support (Jim Snow)
 
 * other small cleanups all over the place
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Merge tag 'edac_for_4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:

 - hide EDAC workqueue from users (Borislav Petkov)

 - edac_subsys init/teardown cleanup (Borislav Petkov)

 - make mpc85xx-pci-edac a platform device (Scott Wood)

 - sb_edac KNL gen2 support (Jim Snow)

 - other small cleanups all over the place

* tag 'edac_for_4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC, i5100: Use to_delayed_work()
  MAINTAINERS: Fix EDAC repo URLs format
  EDAC, sb_edac: Set fixed DIMM width on Xeon Knights Landing
  EDAC: Rework workqueue handling
  EDAC: Make edac_device workqueue setup/teardown functions static
  EDAC: Remove edac_get_sysfs_subsys() error handling
  EDAC: Unexport and make edac_subsys static
  EDAC: Rip out the edac_subsys reference counting
  EDAC: Robustify workqueues destruction
  EDAC, mc_sysfs: Fix freeing bus' name
  EDAC, mpc85xx: Make mpc85xx-pci-edac a platform device
  EDAC, sb_edac: Add Knights Landing (Xeon Phi gen 2) support
  EDAC, sb_edac: Add support for duplicate device IDs
  EDAC, sb_edac: Virtualize several hard-coded functions
  EDAC, mv64x60: Use platform_register/unregister_drivers()
  EDAC, mpc85xx: Use platform_register/unregister_drivers()
  EDAC: Add DDR4 flag
  EDAC: Remove references to bluesmoke.sourceforge.net
  EDAC, pci: Remove old disabled code
 2016-01-11 20:36:20 -08:00
Linus Torvalds 2634bf2550 Notable hwmon updates for v4.5: 
Add basic support for NCT6683 on Mitac boards
 Add support for AMD new 15h processors to fam15h_power driver
 Add pmbus client driver for LTC3815
 Remove htu21 driver (now supported by iio subsystem)
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Merge tag 'hwmon-for-linus-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "Notable hwmon changes:

   - Add basic support for NCT6683 on Mitac boards
   - Add support for AMD new 15h processors to fam15h_power driver
   - Add pmbus client driver for LTC3815
   - Remove htu21 driver (now supported by iio subsystem)"

* tag 'hwmon-for-linus-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (nct6683) Add basic support for NCT6683 on Mitac boards
  hwmon: (ibmaem) constify aem_rw_sensor_template and aem_ro_sensor_template structures
  hwmon: (nct6683,nct6775) constify sensor_template_group structures
  MAINTAINERS: change the maintainer of fam15h_power driver
  hwmon: (fam15h_power) Add support for AMD new 15h processors
  hwmon: (pmbus) Add client driver for LTC3815
  hwmon: (htu21) Remove driver
 2016-01-11 20:28:38 -08:00
Tejun Heo 6255c46fa0 cgroup: rename cgroup documentations 
cgroup-legacy may be too loaded.  Rename the docs so that they're
postfixed with v1 and v2.

* s/cgroup-legacy/cgroup-v1/
* s/cgroup.txt/cgroup-v2.txt/

Signed-off-by: Tejun Heo <tj@kernel.org>
 2016-01-11 23:14:51 -05:00
Linus Torvalds 581dbc8bfc This is the bulk of pin control patches for the v4.5 
series:
 
 - New drivers:
   - PXA2xx pin controller support
   - Broadcom NSP pin controller support
 
 - New subdrivers:
   - Samsung EXYNOS5410 support
   - Qualcomm MSM8996 support
   - Qualcomm PM8994 support
   - Qualcomm PM8994 MPP support
   - Allwinner sunxi H3 support
   - Allwinner sunxi A80 support
   - Rockchip RK3228 support
 
 - Rename the Cygnus pinctrl driver to "iproc" as it is more
   generic than was originally thought.
 
 - A bunch of Lantiq/Xway updates especially from the OpenWRT
   people.
 
 - Several refactorings for the Super-H SH PFC pin controllers.
   Adding SCIF_CLK support.
 
 - Several fixes to the Atlas 7 driver.
 
 - Various fixes all over the place.
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Merge tag 'pinctrl-v4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control patches for the v4.5 series.

  Notably I have a patch to driver core from Stephen Boyd in the pull
  request, this has been ACKed by Greg so it should be OK.  The internal
  API needed some tweaking to allow modular Qualcomm pin controllers.

  There is a bit of development history in here but it should all add up
  nicely and has boiled in linux-next.  For example I merged in v4.4-rc5
  to get rid of some nasty merge conflicts.

  Summary:

   - New drivers:
      - PXA2xx pin controller support
      - Broadcom NSP pin controller support

   - New subdrivers:
      - Samsung EXYNOS5410 support
      - Qualcomm MSM8996 support
      - Qualcomm PM8994 support
      - Qualcomm PM8994 MPP support
      - Allwinner sunxi H3 support
      - Allwinner sunxi A80 support
      - Rockchip RK3228 support

   - Rename the Cygnus pinctrl driver to "iproc" as it is more generic
     than was originally thought.

   - A bunch of Lantiq/Xway updates especially from the OpenWRT people.

   - Several refactorings for the Super-H SH PFC pin controllers.
     Adding SCIF_CLK support.

   - Several fixes to the Atlas 7 driver.

   - Various fixes all over the place"

* tag 'pinctrl-v4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (91 commits)
  pinctrl: mediatek: Modify pinctrl bindings for mt2701
  Revert "pinctrl: qcom: make PMIC drivers bool"
  pinctrl: qcom: Use platform_irq_count() instead of of_irq_count()
  driver-core: platform: Add platform_irq_count()
  pinctrl: lantiq: 2 pins have the wrong mux list
  pinctrl: qcom: make PMIC drivers bool
  pinctrl: nsp-gpio: forever loop in nsp_gpio_get_strength()
  pinctrl: mediatek: convert to arch_initcall
  pinctrl: bcm2835: Fix memory leak in error path
  pinctrl: mediatek: add missing of_node_put
  pinctrl: rockchip: add missing of_node_put
  pinctrl: sh-pfc: add missing of_node_put
  pinctrl: sirf: add missing of_node_put
  pinctrl-tegra: add missing of_node_put
  pinctrl: sunxi: Add A80 special pin controller
  pinctrl: bcm/cygnys/iproc: fixup rebase issue
  pinctrl: fixup problematic flag
  MAINTAINERS: Add co-maintainer for Renesas Pin Controllers
  pinctrl: sh-pfc: r8a7791: add EtherAVB pin groups
  pinctrl: sh-pfc: r8a7795: Add SATA support
  ...
 2016-01-11 20:05:39 -08:00
Linus Torvalds fb591fbd0a MMC core: 
- Optimize boot time by detecting cards simultaneously
  - Make runtime resume default behavior for MMC/SD
  - Enable MMC/SD/SDIO devices to suspend/resume asynchronously
  - Allow more than 8 partitions per card
  - Introduce MMC_CAP2_NO_SDIO to prevent unsupported SDIO commands
  - Support the standard DT wakeup-source property
  - Fix driver strength switching for HS200 and HS400
  - Fix switch command timeout
  - Fix invalid vdd in voltage switch power cycle for SDIO
 
 MMC host:
  - sdhci: Restore behavior when setting VDD via external regulator
  - sdhci: A couple of changes/fixes related to the dma support
  - sdhci-tegra: Add Tegra210 support
  - sdhci-tegra: Support for UHS-I cards including tuning support
  - sdhci-of-at91: Add PM support
  - sh_mmcif: Rework dma channel handling
  - mvsdio: Delete platform data code path
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Merge tag 'mmc-v4.5' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Optimize boot time by detecting cards simultaneously
   - Make runtime resume default behavior for MMC/SD
   - Enable MMC/SD/SDIO devices to suspend/resume asynchronously
   - Allow more than 8 partitions per card
   - Introduce MMC_CAP2_NO_SDIO to prevent unsupported SDIO commands
   - Support the standard DT wakeup-source property
   - Fix driver strength switching for HS200 and HS400
   - Fix switch command timeout
   - Fix invalid vdd in voltage switch power cycle for SDIO

  MMC host:
   - sdhci: Restore behavior when setting VDD via external regulator
   - sdhci: A couple of changes/fixes related to the dma support
   - sdhci-tegra: Add Tegra210 support
   - sdhci-tegra: Support for UHS-I cards including tuning support
   - sdhci-of-at91: Add PM support
   - sh_mmcif: Rework dma channel handling
   - mvsdio: Delete platform data code path"

* tag 'mmc-v4.5' of git://git.linaro.org/people/ulf.hansson/mmc: (52 commits)
  mmc: dw_mmc: remove the unused quirks
  mmc: sdhci-pci: use to_pci_dev()
  mmc: cb710: use to_platform_device()
  mmc: tegra: use correct accessor for misc ctrl register
  mmc: tegra: enable UHS-I modes
  mmc: tegra: implement UHS tuning
  mmc: tegra: disable SPI_MODE_CLKEN
  mmc: tegra: implement module external clock change
  mmc: sdhci: restore behavior when setting VDD via external regulator
  mmc: It is not an error for the card to be removed while suspended
  mmc: block: Allow more than 8 partitions per card
  mmc: core: Optimize boot time by detecting cards simultaneously
  mmc: dw_mmc: use resource_size_t to store physical address
  mmc: core: fix __mmc_switch timeout caused by preempt
  mmc: usdhi6rol0: handle NULL data in timeout
  mmc: of_mmc_spi: Add IRQF_ONESHOT to interrupt flags
  mmc: mediatek: change some dev_err to dev_dbg
  mmc: enable MMC/SD/SDIO device to suspend/resume asynchronously
  mmc: sdhci: Fix sdhci_runtime_pm_bus_on/off()
  mmc: sdhci: 64-bit DMA actually has 4-byte alignment
  ...
 2016-01-11 19:39:09 -08:00
Linus Torvalds 8c930204ce Merge branch 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 
Pull libata updates from Tejun Heo:
 "Mostly low level driver specific changes.

  Two changes are somewhat noteworthy.  First, Dan's patchset to support
  per-port msix interrupt handling for ahci, which was tried last cycle
  but had to be backed out due to a couple issues, is back and seems to
  be working fine.  Second, libata exception handling now uses
  usleep_range() instead of msleep() for sleeps < 20ms which can make
  things snappier in some corner cases"

* 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata: skip debounce delay on link resume
  ata: ahci_brcmstb: disable DIPM support
  ata: ahci_brcmstb: enable support for ALPM
  drivers: libata-core: Use usleep_range() instead of msleep() for short sleeps (<20 ms)
  sata_sx4: correctly handling failed allocation
  ata: ahci_brcmstb: add support for MIPS-based platforms
  ahci: qoriq: Adjust the default register values on ls1021a
  ahci: qoriq: Update the default Rx watermark value
  ahci: qoriq: Adjust the default register values on ls1043a
  ahci: compile out msi/msix infrastructure
  ata: core: fix irq description on AHCI single irq systems
  ata: ahci_brcmstb: remove unused definitions
  ata: ahci_brcmstb: add a quirk for MIPS-based platforms
  ata: ahci_brcmstb: disable NCQ for MIPS-based platforms
  ata: sata_rcar: Remove obsolete platform_device_id entries
  sata_rcar: Add compatible string for r8a7795
  ahci: kill 'intr_status'
  ahci: switch from 'threaded' to 'hardirq' interrupt handling
  ahci: per-port msix support
 2016-01-11 19:33:59 -08:00
Linus Torvalds 0f8c790103 Merge branch 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq 
Pull workqueue update from Tejun Heo:
 "Workqueue changes for v4.5.  One cleanup patch and three to improve
  the debuggability.

  Workqueue now has a stall detector which dumps workqueue state if any
  worker pool hasn't made forward progress over a certain amount of time
  (30s by default) and also triggers a warning if a workqueue which can
  be used in memory reclaim path tries to wait on something which can't
  be.

  These should make workqueue hangs a lot easier to debug."

* 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: simplify the apply_workqueue_attrs_locked()
  workqueue: implement lockup detector
  watchdog: introduce touch_softlockup_watchdog_sched()
  workqueue: warn if memory reclaim tries to flush !WQ_MEM_RECLAIM workqueue
 2016-01-11 18:53:13 -08:00
Linus Torvalds 3d116a66ed Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull irq updates from Thomas Gleixner:
 "The irq department provides:

   - Support for MSI to wire bridges and a first user of it

   - More ACPI support for ARM/GIC

   - A new TS-4800 interrupt controller driver

   - RCU based free of interrupt descriptors to support the upcoming
     Intel VMD technology without introducing a locking nightmare

   - The usual pile of fixes and updates to drivers and core code"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
  irqchip/omap-intc: Add support for spurious irq handling
  irqchip/zevio: Use irq_data_get_chip_type() helper
  irqchip/omap-intc: Remove duplicate setup for IRQ chip type handler
  irqchip/ts4800: Add TS-4800 interrupt controller
  irqchip/ts4800: Add documentation for TS-4800 interrupt controller
  irq/platform-MSI: Increase the maximum MSIs the MSI framework can support
  irqchip/gicv2m: Miscellaneous fixes for v2m resources and SPI ranges
  irqchip/bcm2836: Make code more readable
  irqchip/bcm2836: Tolerate IRQs while no flag is set in ISR
  irqchip/bcm2836: Add SMP support for the 2836
  irqchip/bcm2836: Fix initialization of the LOCAL_IRQ_CNT timers
  irqchip/gic-v2m: acpi: Introducing GICv2m ACPI support
  irqchip/gic-v2m: Refactor to prepare for ACPI support
  irqdomain: Introduce is_fwnode_irqchip helper
  acpi: pci: Setup MSI domain for ACPI based pci devices
  genirq/msi: Export functions to allow MSI domains in modules
  irqchip/mbigen: Implement the mbigen irq chip operation functions
  irqchip/mbigen: Create irq domain for each mbigen device
  irqchip/mgigen: Add platform device driver for mbigen device
  dt-bindings: Documents the mbigen bindings
  ...
 2016-01-11 18:28:06 -08:00
Dmitry Torokhov 009f773836 Merge branch 'next' into for-linus 
Prepare first round of input updates for 4.5 merge window.
 2016-01-11 17:47:25 -08:00
Rafael J. Wysocki b366f97632 Merge branch 'pm-cpufreq' 
* pm-cpufreq: (30 commits)
  Documentation: cpufreq: intel_pstate: enhance documentation
  cpufreq-dt: fix handling regulator_get_voltage() result
  cpufreq: governor: Fix negative idle_time when configured with CONFIG_HZ_PERIODIC
  cpufreq: mt8173: migrate to use operating-points-v2 bindings
  cpufreq: Simplify core code related to boost support
  cpufreq: acpi-cpufreq: Simplify boost-related code
  cpufreq: Make cpufreq_boost_supported() static
  blackfin-cpufreq: Mark cpu_set_cclk() as static
  blackfin-cpufreq: Change return type of cpu_set_cclk() to that of clk_set_rate()
  dt: cpufreq: st: Provide bindings for ST's CPUFreq implementation
  cpufreq: st: Provide runtime initialised driver for ST's platforms
  cpufreq: mt8173: Move resources allocation into ->probe()
  cpufreq: intel_pstate: Account for IO wait time
  cpufreq: intel_pstate: Account for non C0 time
  cpufreq: intel_pstate: Configurable algorithm to get target pstate
  cpufreq: mt8173: check return value of regulator_get_voltage() call
  cpufreq: mt8173: remove redundant regulator_get_voltage() call
  cpufreq: mt8173: add CPUFREQ_HAVE_GOVERNOR_PER_POLICY flag
  cpufreq: qoriq: Register cooling device based on device tree
  cpufreq: pcc-cpufreq: update default value of cpuinfo_transition_latency
  ...
 2016-01-12 01:11:25 +01:00
Rafael J. Wysocki 7f4a3702bd Merge branch 'pm-opp' 
* pm-opp:
  PM / OPP: Use snprintf() instead of sprintf()
  PM / OPP: Set cpu_dev->id in cpumask first
  PM / OPP: Fix parsing of opp-microvolt and opp-microamp properties
  PM / OPP: Parse 'opp-<prop>-<name>' bindings
  PM / OPP: Parse 'opp-supported-hw' binding
  PM / OPP: Add missing doc comments
  ARM: dts: exynos4412: Rename OPP nodes as opp@<opp-hz>
  PM / OPP: Rename OPP nodes as opp@<opp-hz>
  PM / OPP: Remove 'operating-points-names' binding
  PM / OPP: Add {opp-microvolt|opp-microamp}-<name> binding
  PM / OPP: Add "opp-supported-hw" binding
  PM / OPP: Add debugfs support
 2016-01-12 01:11:14 +01:00
Rafael J. Wysocki 92266e1de4 Merge branches 'pm-pci' and 'pm-core' 
* pm-pci:
  PCI / PM: Fix small typo in documentation
  PCI / PM: constify pci_platform_pm_ops structure

* pm-core:
  PM / core: fix typo in documentation
  PM / runtime: Add new helper for conditional usage count incrementation
  MAINTAINERS: Add an entry for the PM core
  PM / runtime: Re-init runtime PM states at probe error and driver unbind
  PM / sleep: prohibit devices probing during suspend/hibernation
 2016-01-12 01:10:52 +01:00
Jaegeuk Kim d0239e1bf5 f2fs: detect idle time depending on user behavior 
This patch adds last time that user requested filesystem operations.
This information is used to detect whether system is idle or not later.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
 2016-01-11 15:56:37 -08:00
Linus Torvalds 4f19b8803b Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 apic updates from Ingo Molnar:
 "The main changes in this cycle were:

   - introduce optimized single IPI sending methods on modern APICs
     (Linus Torvalds, Thomas Gleixner)

   - kexec/crash APIC handling fixes and enhancements (Hidehiro Kawai)

   - extend lapic vector saving/restoring to the CMCI (MCE) vector as
     well (Juergen Gross)

   - various fixes and enhancements (Jake Oshins, Len Brown)"

* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  x86/irq: Export functions to allow MSI domains in modules
  Documentation: Document kernel.panic_on_io_nmi sysctl
  x86/nmi: Save regs in crash dump on external NMI
  x86/apic: Introduce apic_extnmi command line parameter
  kexec: Fix race between panic() and crash_kexec()
  panic, x86: Allow CPUs to save registers even if looping in NMI context
  panic, x86: Fix re-entrance problem due to panic on NMI
  x86/apic: Fix the saving and restoring of lapic vectors during suspend/resume
  x86/smpboot: Re-enable init_udelay=0 by default on modern CPUs
  x86/smp: Remove single IPI wrapper
  x86/apic: Use default send single IPI wrapper
  x86/apic: Provide default send single IPI wrapper
  x86/apic: Implement single IPI for apic_noop
  x86/apic: Wire up single IPI for apic_numachip
  x86/apic: Wire up single IPI for x2apic_uv
  x86/apic: Implement single IPI for x2apic_phys
  x86/apic: Wire up single IPI for bigsmp_apic
  x86/apic: Remove pointless indirections from bigsmp_apic
  x86/apic: Wire up single IPI for apic_physflat
  x86/apic: Remove pointless indirections from apic_physflat
  ...
 2016-01-11 15:37:06 -08:00
Linus Torvalds 5cb52b5e16 Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull perf updates from Ingo Molnar:
 "Kernel side changes:

   - Intel Knights Landing support.  (Harish Chegondi)

   - Intel Broadwell-EP uncore PMU support.  (Kan Liang)

   - Core code improvements.  (Peter Zijlstra.)

   - Event filter, LBR and PEBS fixes.  (Stephane Eranian)

   - Enable cycles:pp on Intel Atom.  (Stephane Eranian)

   - Add cycles:ppp support for Skylake.  (Andi Kleen)

   - Various x86 NMI overhead optimizations.  (Andi Kleen)

   - Intel PT enhancements.  (Takao Indoh)

   - AMD cache events fix.  (Vince Weaver)

  Tons of tooling changes:

   - Show random perf tool tips in the 'perf report' bottom line
     (Namhyung Kim)

   - perf report now defaults to --group if the perf.data file has
     grouped events, try it with:

      # perf record -e '{cycles,instructions}' -a sleep 1
      [ perf record: Woken up 1 times to write data ]
      [ perf record: Captured and wrote 1.093 MB perf.data (1247 samples) ]
      # perf report
      # Samples: 1K of event 'anon group { cycles, instructions }'
      # Event count (approx.): 1955219195
      #
      #       Overhead  Command     Shared Object      Symbol

         2.86%   0.22%  swapper     [kernel.kallsyms]  [k] intel_idle
         1.05%   0.33%  firefox     libxul.so          [.] js::SetObjectElement
         1.05%   0.00%  kworker/0:3 [kernel.kallsyms]  [k] gen6_ring_get_seqno
         0.88%   0.17%  chrome      chrome             [.] 0x0000000000ee27ab
         0.65%   0.86%  firefox     libxul.so          [.] js::ValueToId<(js::AllowGC)1>
         0.64%   0.23%  JS Helper   libxul.so          [.] js::SplayTree<js::jit::LiveRange*, js::jit::LiveRange>::splay
         0.62%   1.27%  firefox     libxul.so          [.] js::GetIterator
         0.61%   1.74%  firefox     libxul.so          [.] js::NativeSetProperty
         0.61%   0.31%  firefox     libxul.so          [.] js::SetPropertyByDefining

   - Introduce the 'perf stat record/report' workflow:

     Generate perf.data files from 'perf stat', to tap into the
     scripting capabilities perf has instead of defining a 'perf stat'
     specific scripting support to calculate event ratios, etc.

     Simple example:

        $ perf stat record -e cycles usleep 1

         Performance counter stats for 'usleep 1':

               1,134,996      cycles

             0.000670644 seconds time elapsed

        $ perf stat report

         Performance counter stats for '/home/acme/bin/perf stat record -e cycles usleep 1':

               1,134,996      cycles

             0.000670644 seconds time elapsed

        $

     It generates PERF_RECORD_ userspace records to store the details:

        $ perf report -D | grep PERF_RECORD
        0xf0 [0x28]: PERF_RECORD_THREAD_MAP nr: 1 thread: 27637
        0x118 [0x12]: PERF_RECORD_CPU_MAP nr: 1 cpu: 65535
        0x12a [0x40]: PERF_RECORD_STAT_CONFIG
        0x16a [0x30]: PERF_RECORD_STAT
        -1 -1 0x19a [0x40]: PERF_RECORD_MMAP -1/0: [0xffffffff81000000(0x1f000000) @ 0xffffffff81000000]: x [kernel.kallsyms]_text
        0x1da [0x18]: PERF_RECORD_STAT_ROUND
        [acme@ssdandy linux]$

     An effort was made to make perf.data files generated like this to
     not generate cryptic messages when processed by older tools.

     The 'perf script' bits need rebasing, will go up later.

   - Make command line options always available, even when they depend
     on some feature being enabled, warning the user about use of such
     options (Wang Nan)

   - Support hw breakpoint events (mem:0xAddress) in the default output
     mode in 'perf script' (Wang Nan)

   - Fixes and improvements for supporting annotating ARM binaries,
     support ARM call and jump instructions, more work needed to have
     arch specific stuff separated into tools/perf/arch/*/annotate/
     (Russell King)

   - Add initial 'perf config' command, for now just with a --list
     command to the contents of the configuration file in use and a
     basic man page describing its format, commands for doing edits and
     detailed documentation are being reviewed and proof-read.  (Taeung
     Song)

   - Allows BPF scriptlets specify arguments to be fetched using DWARF
     info, using a prologue generated at compile/build time (He Kuang,
     Wang Nan)

   - Allow attaching BPF scriptlets to module symbols (Wang Nan)

   - Allow attaching BPF scriptlets to userspace code using uprobe (Wang
     Nan)

   - BPF programs now can specify 'perf probe' tunables via its section
     name, separating key=val values using semicolons (Wang Nan)

     Testing some of these new BPF features:

        Use case: get callchains when receiving SSL packets, filter then in the
                  kernel, at arbitrary place.

        # cat ssl.bpf.c
        #define SEC(NAME) __attribute__((section(NAME), used))

        struct pt_regs;

        SEC("func=__inet_lookup_established hnum")
        int func(struct pt_regs *ctx, int err, unsigned short port)
        {
                return err == 0 && port == 443;
        }

        char _license[] SEC("license") = "GPL";
        int  _version   SEC("version") = LINUX_VERSION_CODE;
        #
        # perf record -a -g -e ssl.bpf.c
        ^C[ perf record: Woken up 1 times to write data ]
        [ perf record: Captured and wrote 0.787 MB perf.data (3 samples) ]
        # perf script | head -30
        swapper     0 [000] 58783.268118: perf_bpf_probe:func: (ffffffff816a0f60) hnum=0x1bb
           8a0f61 __inet_lookup_established (/lib/modules/4.3.0+/build/vmlinux)
           896def ip_rcv_finish (/lib/modules/4.3.0+/build/vmlinux)
           8976c2 ip_rcv (/lib/modules/4.3.0+/build/vmlinux)
           855eba __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux)
           8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux)
           8572a8 process_backlog (/lib/modules/4.3.0+/build/vmlinux)
           856b11 net_rx_action (/lib/modules/4.3.0+/build/vmlinux)
           2a284b __do_softirq (/lib/modules/4.3.0+/build/vmlinux)
           2a2ba3 irq_exit (/lib/modules/4.3.0+/build/vmlinux)
           96b7a4 do_IRQ (/lib/modules/4.3.0+/build/vmlinux)
           969807 ret_from_intr (/lib/modules/4.3.0+/build/vmlinux)
           2dede5 cpu_startup_entry (/lib/modules/4.3.0+/build/vmlinux)
           95d5bc rest_init (/lib/modules/4.3.0+/build/vmlinux)
          1163ffa start_kernel ([kernel.vmlinux].init.text)
          11634d7 x86_64_start_reservations ([kernel.vmlinux].init.text)
          1163623 x86_64_start_kernel ([kernel.vmlinux].init.text)

        qemu-system-x86  9178 [003] 58785.792417: perf_bpf_probe:func: (ffffffff816a0f60) hnum=0x1bb
           8a0f61 __inet_lookup_established (/lib/modules/4.3.0+/build/vmlinux)
           896def ip_rcv_finish (/lib/modules/4.3.0+/build/vmlinux)
           8976c2 ip_rcv (/lib/modules/4.3.0+/build/vmlinux)
           855eba __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux)
           8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux)
           856660 netif_receive_skb_internal (/lib/modules/4.3.0+/build/vmlinux)
           8566ec netif_receive_skb_sk (/lib/modules/4.3.0+/build/vmlinux)
             430a br_handle_frame_finish ([bridge])
             48bc br_handle_frame ([bridge])
           855f44 __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux)
           8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux)
        #

   - Use 'perf probe' various options to list functions, see what
     variables can be collected at any given point, experiment first
     collecting without a filter, then filter, use it together with
     'perf trace', 'perf top', with or without callchains, if it
     explodes, please tell us!

   - Introduce a new callchain mode: "folded", that will list per line
     representations of all callchains for a give histogram entry,
     facilitating 'perf report' output processing by other tools, such
     as Brendan Gregg's flamegraph tools (Namhyung Kim)

     E.g:

        # perf report | grep -v ^# | head
           18.37%     0.00%  swapper  [kernel.kallsyms]   [k] cpu_startup_entry
                           |
                           ---cpu_startup_entry
                              |
                              |--12.07%--start_secondary
                              |
                               --6.30%--rest_init
                                         start_kernel
                                         x86_64_start_reservations
                                         x86_64_start_kernel
         #

     Becomes, in "folded" mode:

        # perf report -g folded | grep -v ^# | head -5
            18.37%     0.00%  swapper [kernel.kallsyms]   [k] cpu_startup_entry
          12.07% cpu_startup_entry;start_secondary
           6.30% cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel
            16.90%     0.00%  swapper [kernel.kallsyms]   [k] call_cpuidle
          11.23% call_cpuidle;cpu_startup_entry;start_secondary
           5.67% call_cpuidle;cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel
            16.90%     0.00%  swapper [kernel.kallsyms]   [k] cpuidle_enter
          11.23% cpuidle_enter;call_cpuidle;cpu_startup_entry;start_secondary
           5.67% cpuidle_enter;call_cpuidle;cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel
            15.12%     0.00%  swapper [kernel.kallsyms]   [k] cpuidle_enter_state
         #

     The user can also select one of "count", "period" or "percent" as
     the first column.

  ... and lots of infrastructure enhancements, plus fixes and other
  changes, features I failed to list - see the shortlog and the git log
  for details"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (271 commits)
  perf evlist: Add --trace-fields option to show trace fields
  perf record: Store data mmaps for dwarf unwind
  perf libdw: Check for mmaps also in MAP__VARIABLE tree
  perf unwind: Check for mmaps also in MAP__VARIABLE tree
  perf unwind: Use find_map function in access_dso_mem
  perf evlist: Remove perf_evlist__(enable|disable)_event functions
  perf evlist: Make perf_evlist__open() open evsels with their cpus and threads (like perf record does)
  perf report: Show random usage tip on the help line
  perf hists: Export a couple of hist functions
  perf diff: Use perf_hpp__register_sort_field interface
  perf tools: Add overhead/overhead_children keys defaults via string
  perf tools: Remove list entry from struct sort_entry
  perf tools: Include all tools/lib directory for tags/cscope/TAGS targets
  perf script: Align event name properly
  perf tools: Add missing headers in perf's MANIFEST
  perf tools: Do not show trace command if it's not compiled in
  perf report: Change default to use event group view
  perf top: Decay periods in callchains
  tools lib: Move bitmap.[ch] from tools/perf/ to tools/{lib,include}/
  tools lib: Sync tools/lib/find_bit.c with the kernel
  ...
 2016-01-11 14:39:17 -08:00
Linus Torvalds 24af98c4cf Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull locking updates from Ingo Molnar:
 "So we have a laundry list of locking subsystem changes:

   - continuing barrier API and code improvements

   - futex enhancements

   - atomics API improvements

   - pvqspinlock enhancements: in particular lock stealing and adaptive
     spinning

   - qspinlock micro-enhancements"

* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Allow FUTEX_CLOCK_REALTIME with FUTEX_WAIT op
  futex: Cleanup the goto confusion in requeue_pi()
  futex: Remove pointless put_pi_state calls in requeue()
  futex: Document pi_state refcounting in requeue code
  futex: Rename free_pi_state() to put_pi_state()
  futex: Drop refcount if requeue_pi() acquired the rtmutex
  locking/barriers, arch: Remove ambiguous statement in the smp_store_mb() documentation
  lcoking/barriers, arch: Use smp barriers in smp_store_release()
  locking/cmpxchg, arch: Remove tas() definitions
  locking/pvqspinlock: Queue node adaptive spinning
  locking/pvqspinlock: Allow limited lock stealing
  locking/pvqspinlock: Collect slowpath lock statistics
  sched/core, locking: Document Program-Order guarantees
  locking, sched: Introduce smp_cond_acquire() and use it
  locking/pvqspinlock, x86: Optimize the PV unlock code path
  locking/qspinlock: Avoid redundant read of next pointer
  locking/qspinlock: Prefetch the next node cacheline
  locking/qspinlock: Use _acquire/_release() versions of cmpxchg() & xchg()
  atomics: Add test for atomic operations with _relaxed variants
 2016-01-11 14:18:38 -08:00
Linus Torvalds 9061cbe62a Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull RCU updates from Ingo Molnar:
 "The changes in this cycle were:

   - Adding transitivity uniformly to rcu_node structure ->lock
     acquisitions.  (This is implemented by the first two commits on top
     of v4.4-rc2 due to the pervasive nature of this change.)

   - Documentation updates, including RCU requirements.

   - Expedited grace-period changes.

   - Miscellaneous fixes.

   - Linked-list fixes, courtesy of KTSAN.

   - Torture-test updates.

   - Late-breaking fix to sysrq-generated crash.

  One thing I should note is that these pieces of documentation are
  fairly large files:

    .../RCU/Design/Requirements/Requirements.html      | 2897 ++++++++++++++++++++
    .../RCU/Design/Requirements/Requirements.htmlx     | 2741 ++++++++++++++++++

  and are written in HTML, not the usual .txt style.  I hope they are
  fine"

Paul McKenney explains the html docs:
 "For whatever it is worth, the reason for this unconventional choice
  was that attempts to do the diagrams in ASCII art failed miserably.

  And attempts to do ASCII art for the upcoming documentation of the
  data structures failed even more miserably"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (49 commits)
  sysrq: Fix warning in sysrq generated crash.
  list: Add lockless list traversal primitives
  rcu: Make rcu_gp_init() be bool rather than int
  rcu: Move wakeup out from under rnp->lock
  rcu: Fix comment for rcu_dereference_raw_notrace
  rcu: Don't redundantly disable irqs in rcu_irq_{enter,exit}()
  rcu: Make cpu_needs_another_gp() be bool
  rcu: Eliminate unused rcu_init_one() argument
  rcu: Remove TINY_RCU bloat from pointless boot parameters
  torture: Place console.log files correctly from the get-go
  torture: Abbreviate console error dump
  rcutorture: Print symbolic name for ->gp_state
  rcutorture: Print symbolic name for rcu_torture_writer_state
  rcutorture: Remove CONFIG_RCU_USER_QS from rcutorture selftest doc
  rcutorture: Default grace period to three minutes, allow override
  rcutorture:  Dump stack when GP kthread stalls
  rcutorture: Flag nonexistent RCU GP kthread
  rcutorture: Add batch number to script printout
  Documentation/memory-barriers.txt: Fix ACCESS_ONCE thinko
  documentation: Update RCU requirements based on expedited changes
  ...
 2016-01-11 13:46:11 -08:00