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Linus Torvalds
d768869728 RDMA subsystem updates for 5.5 
Mainly a collection of smaller of driver updates this cycle.
 
 - Various driver updates and bug fixes for siw, bnxt_re, hns, qedr,
   iw_cxgb4, vmw_pvrdma, mlx5
 
 - Improvements in SRPT from working with iWarp
 
 - SRIOV VF support for bnxt_re
 
 - Skeleton kernel-doc files for drivers/infiniband
 
 - User visible counters for events related to ODP
 
 - Common code for tracking of mmap lifetimes so that drivers can link HW
   object liftime to a VMA
 
 - ODP bug fixes and rework
 
 - RDMA READ support for efa
 
 - Removal of the very old cxgb3 driver
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "Again another fairly quiet cycle with few notable core code changes
  and the usual variety of driver bug fixes and small improvements.

   - Various driver updates and bug fixes for siw, bnxt_re, hns, qedr,
     iw_cxgb4, vmw_pvrdma, mlx5

   - Improvements in SRPT from working with iWarp

   - SRIOV VF support for bnxt_re

   - Skeleton kernel-doc files for drivers/infiniband

   - User visible counters for events related to ODP

   - Common code for tracking of mmap lifetimes so that drivers can link
     HW object liftime to a VMA

   - ODP bug fixes and rework

   - RDMA READ support for efa

   - Removal of the very old cxgb3 driver"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (168 commits)
  RDMA/hns: Delete unnecessary callback functions for cq
  RDMA/hns: Rename the functions used inside creating cq
  RDMA/hns: Redefine the member of hns_roce_cq struct
  RDMA/hns: Redefine interfaces used in creating cq
  RDMA/efa: Expose RDMA read related attributes
  RDMA/efa: Support remote read access in MR registration
  RDMA/efa: Store network attributes in device attributes
  IB/hfi1: remove redundant assignment to variable ret
  RDMA/bnxt_re: Fix missing le16_to_cpu
  RDMA/bnxt_re: Fix stat push into dma buffer on gen p5 devices
  RDMA/bnxt_re: Fix chip number validation Broadcom's Gen P5 series
  RDMA/bnxt_re: Fix Kconfig indentation
  IB/mlx5: Implement callbacks for getting VFs GUID attributes
  IB/ipoib: Add ndo operation for getting VFs GUID attributes
  IB/core: Add interfaces to get VF node and port GUIDs
  net/core: Add support for getting VF GUIDs
  RDMA/qedr: Fix null-pointer dereference when calling rdma_user_mmap_get_offset
  RDMA/cm: Use refcount_t type for refcount variable
  IB/mlx5: Support extended number of strides for Striding RQ
  IB/mlx4: Update HW GID table while adding vlan GID
  ...
 2019-11-27 10:17:28 -08:00
Linus Torvalds
0e45384cec MMC core: 
- Add CMD13 polling for MMC IOCTLS with R1B response.
  - Add common DT properties for clk-phase-delays for various speed modes.
  - Fix size overflow for mmc gp-partitions.
  - Re-work HW reset for SDIO cards, which also includes a re-work for
    Marvell's WiFi mwifiex SDIO func driver.
 
 MMC host:
  - jz4740: Add support for X1000 and JZ4760.
  - jz4740: Add support for 8-bit bus and for low power mode.
  - mmci: Add support for HW busy timeout for the stm32_sdmmc variant.
  - owl-mmc: Add driver for Actions Semi Owl SoCs SD/MMC controller.
  - renesas_sdhi: Add support for r8a774b1.
  - sdhci_am654: Add support for Command Queuing Engine for J721E.
  - sdhci-milbeaut: Add driver for the Milbeaut SD controller.
  - sdhci-of-arasan: Add support for ZynqMP tap-delays.
  - sdhci-of-arasan: Add support for clk-phase-delays for SD cards.
  - sdhci-of-arasan: Add support for Intel LGM SDXC.
  - sdhci-of-aspeed: Allow inversion of the internal card detect signal.
  - sdhci-of-esdhc: Fixup workaround for erratum A-008171 for tunings.
  - sdhci-of-at91: Improve support for calibration.
  - sdhci-pci: Add support for Intel JSL.
  - sdhci-pci: Add quirk for AMD SDHC Device 0x7906.
  - tmio: Enable support for erase/discard/trim requests.
 
 MMC/OMAP/pandora/wl1251:
 The TI wl1251 WiFi driver for SDIO on the OMAP openpandora board has been
 broken since v4.7. To fix the problems, changes have been made cross
 subsystems, but also to OMAP2 machine code and to openpandora DTS files, as
 summarized below. Note that, relevant changes have been tagged for stable.
 
  - mmc/wl1251: Re-introduce lost SDIO quirks and vendor-id for wl1251
  - omap/omap_hsmmc: Remove redundant platform config for openpandora
  - omap_hsmmc: Initialize non-std SDIO card for wl1251 for pandora
  - omap/dts/pandora: Specify wl1251 through a child node of mmc3
  - wl1251: Add devicetree support for TI wl1251 SDIO
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Merge tag 'mmc-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "These are the updates for MMC and MEMSTICK for v5.5.

  Note that this also contains quite some additional changes reaching
  beyond both the MMC and MEMSTICK subsystems. This is primarily because
  of fixing an old regression for a WiFi driver based on the SDIO
  interface on an OMAP openpandora board

  MMC core:
   - Add CMD13 polling for MMC IOCTLS with R1B response.
   - Add common DT properties for clk-phase-delays for various speed
     modes.
   - Fix size overflow for mmc gp-partitions.
   - Re-work HW reset for SDIO cards, which also includes a re-work for
     Marvell's WiFi mwifiex SDIO func driver.

  MMC host:
   - jz4740: Add support for X1000 and JZ4760.
   - jz4740: Add support for 8-bit bus and for low power mode.
   - mmci: Add support for HW busy timeout for the stm32_sdmmc variant.
   - owl-mmc: Add driver for Actions Semi Owl SoCs SD/MMC controller.
   - renesas_sdhi: Add support for r8a774b1.
   - sdhci_am654: Add support for Command Queuing Engine for J721E.
   - sdhci-milbeaut: Add driver for the Milbeaut SD controller.
   - sdhci-of-arasan: Add support for ZynqMP tap-delays.
   - sdhci-of-arasan: Add support for clk-phase-delays for SD cards.
   - sdhci-of-arasan: Add support for Intel LGM SDXC.
   - sdhci-of-aspeed: Allow inversion of the internal card detect
     signal.
   - sdhci-of-esdhc: Fixup workaround for erratum A-008171 for tunings.
   - sdhci-of-at91: Improve support for calibration.
   - sdhci-pci: Add support for Intel JSL.
   - sdhci-pci: Add quirk for AMD SDHC Device 0x7906.
   - tmio: Enable support for erase/discard/trim requests.

  MMC/OMAP/pandora/wl1251:

  The TI wl1251 WiFi driver for SDIO on the OMAP openpandora board has
  been broken since v4.7. To fix the problems, changes have been made
  cross subsystems, but also to OMAP2 machine code and to openpandora
  DTS files, as summarized below. Relevant changes have been tagged for
  stable.

   - mmc/wl1251: Re-introduce lost SDIO quirks and vendor-id for wl1251
   - omap/omap_hsmmc: Remove redundant platform config for openpandora
   - omap_hsmmc: Initialize non-std SDIO card for wl1251 for pandora
   - omap/dts/pandora: Specify wl1251 through a child node of mmc3
   - wl1251: Add devicetree support for TI wl1251 SDIO"

* tag 'mmc-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (73 commits)
  dt-bindings: mmc: Correct the type of the clk phase properties
  Revert "mmc: tmio: remove workaround for NON_REMOVABLE"
  memstick: Fix Kconfig indentation
  mmc: sdhci-of-arasan: Add support for ZynqMP Platform Tap Delays Setup
  dt-bindings: mmc: arasan: Document 'xlnx,zynqmp-8.9a' controller
  firmware: xilinx: Add SDIO Tap Delay nodes
  mmc: sdhci-of-arasan: Add support to set clock phase delays for SD
  dt-bindings: mmc: Add optional generic properties for mmc
  mmc: sdhci-of-arasan: Add sampling clock for a phy to use
  dt-bindings: mmc: arasan: Update Documentation for the input clock
  mmc: sdhci-of-arasan: Separate out clk related data to another structure
  mmc: sdhci: Fix grammar in warning message
  mmc: sdhci-of-aspeed: add inversion signal presence
  mmc: sdhci-of-aspeed: enable CONFIG_MMC_SDHCI_IO_ACCESSORS
  mmc: sdhci_am654: Add Support for Command Queuing Engine to J721E
  mmc: core: Fix size overflow for mmc partitions
  mmc: tmio: Add MMC_CAP_ERASE to allow erase/discard/trim requests
  net: wireless: ti: remove local VENDOR_ID and DEVICE_ID definitions
  net: wireless: ti: wl1251 use new SDIO_VENDOR_ID_TI_WL1251 definition
  mmc: core: fix wl1251 sdio quirks
  ...
 2019-11-27 10:03:52 -08:00
Linus Torvalds
dc5fa46568 This is the bulk of pin control changes for the v5.5 kernel 
series:
 
 Core changes:
 
 - Avoid taking direct references to device tree-supplied
   device names: these may changed at runtime under certain
   circumstances to kstrdup them.
 
 GPIO related:
 
 - Work is ongoing to move to passing the irqchip along as a
   templated struct gpio_irq_chip when adding a standard
   gpiolib-based irqchip to a GPIO controller, a few patches
   in this cycle switches a few pin control drivers over to
   using this method.
 
 New hardware support:
 
 - Intel Lightning Mountain SoC pin controller and GPIO
   support, a first Intel platform to use device tree rather
   than ACPI to configure the system. News reports says that
   this SoC is a network processor.
 
 - Qualcomm MSM8976 and MSM8956
 
 - Qualcomm PMIC GPIO now also supports PM6150 and PM6150L
 
 - Qualcomm SPMI MPP and SPMI GPIO for PM8950 and PMI8950
 
 - Rockchip RK3308
 
 - Renesas R8A77961
 
 - Allwinner Meson-A1
 
 Driver improvements:
 
 - get_multiple and set_multiple support for the AT91-PIO4 driver.
 
 - Convert Qualcomm SSBI GPIO to use the hierarchical IRQ helpers
   in the GPIOlib irqchip.
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Merge tag 'pinctrl-v5.5-1' 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 changes for v5.5.

  It is pretty much business as usual, the most interesting thing I
  think is the pin controller for a new Intel chip called Lightning
  Mountain, which is according to news reports some kind of embedded
  network processor and what is surprising about it is that Intel have
  decided to use device tree to describe the system rather than ACPI
  that they have traditionally favored.

  Core changes:

   - Avoid taking direct references to device tree-supplied device
     names: these may changed at runtime under certain circumstances to
     kstrdup them.

  GPIO related:

   - Work is ongoing to move to passing the irqchip along as a templated
     struct gpio_irq_chip when adding a standard gpiolib-based irqchip
     to a GPIO controller, a few patches in this cycle switches a few
     pin control drivers over to using this method.

  New hardware support:

   - Intel Lightning Mountain SoC pin controller and GPIO support, a
     first Intel platform to use device tree rather than ACPI to
     configure the system. News reports says that this SoC is a network
     processor.

   - Qualcomm MSM8976 and MSM8956

   - Qualcomm PMIC GPIO now also supports PM6150 and PM6150L

   - Qualcomm SPMI MPP and SPMI GPIO for PM8950 and PMI8950

   - Rockchip RK3308

   - Renesas R8A77961

   - Allwinner Meson-A1

  Driver improvements:

   - get_multiple and set_multiple support for the AT91-PIO4 driver.

   - Convert Qualcomm SSBI GPIO to use the hierarchical IRQ helpers in
     the GPIOlib irqchip"

* tag 'pinctrl-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (93 commits)
  pinctrl: ingenic: Add OTG VBUS pin for the JZ4770
  pinctrl: ingenic: Handle PIN_CONFIG_OUTPUT config
  pinctrl: Fix Kconfig indentation
  pinctrl: lewisburg: Update pin list according to v1.1v6
  MAINTAINERS: Replace my email by one @kernel.org
  pinctrl: armada-37xx: Fix irq mask access in armada_37xx_irq_set_type()
  dt-bindings: pinctrl: intel: Add for new SoC
  pinctrl: Add pinmux & GPIO controller driver for a new SoC
  pinctrl: rza1: remove unnecessary static inline function
  pinctrl: meson: add pinctrl driver support for Meson-A1 SoC
  pinctrl: meson: add a new callback for SoCs fixup
  pinctrl: nomadik: db8500: Add mc0_a_2 pin group without direction control
  dt-bindings: pinctrl: Convert generic pin mux and config properties to schema
  pinctrl: cherryview: Missed type change to unsigned int
  pinctrl: intel: Missed type change to unsigned int
  pinctrl: use devm_platform_ioremap_resource() to simplify code
  pinctrl: just return if no valid maps
  dt-bindings: pinctrl: qcom-pmic-mpp: Add support for PM/PMI8950
  pinctrl: qcom: spmi-mpp: Add PM/PMI8950 compatible strings
  dt-bindings: pinctrl: qcom-pmic-gpio: Add support for PM/PMI8950
  ...
 2019-11-27 10:00:33 -08:00
Linus Torvalds
3d9e3501a0 hwmon updates for v5.5 
- Added support for Texas Instruments TMP512/513
 - Added support for LTC2947
 - Added support for BEL PFE1100 and PFE3000
 - Various minor improvements and fixes
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Merge tag 'hwmon-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:

 - Add support for Texas Instruments TMP512/513

 - Add support for LTC2947

 - Add support for BEL PFE1100 and PFE3000

 - Various minor improvements and fixes

* tag 'hwmon-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  dell-smm-hwmon: Add documentation
  hwmon: (dell-smm) Add support for disabling automatic BIOS fan control
  hwmon: Add driver for Texas Instruments TMP512/513 sensor chips.
  dt-bindings: hwmon: Add TMP512/513
  docs: hwmon: Document bel-pfe pmbus driver
  hwmon: (pmbus) add driver for BEL PFE1100 and PFE3000
  dt-bindings: hwmon: Add ltc2947 documentation
  hwmon: Add support for ltc2947
  hwmon: (ina3221) Add summation feature support
  hwmon: (tmp421) Allow reading at 2Hz instead of 0.5Hz
  hwmon: (w83793d) remove redundant assignment to variable res
  hwmon: (pmbus/ibm-cffps) Add version detection capability
  dt-bindings: hwmon: Document ibm,cffps compatible string
  hwmon: abituguru: make array probe_order static, makes object smaller
  hwmon: (applesmc) switch to using input device polling mode
  hwmon: (aspeed-pwm-tacho) Use devm_platform_ioremap_resource() in aspeed_pwm_tacho_probe()
  hwmon: (pmbus/ibm-cffps) Fix LED blink behavior
  hwmon: (pmbus/ibm-cffps) Switch LEDs to blocking brightness call
 2019-11-27 09:58:49 -08:00
Linus Torvalds
00074a7007 power supply and reset changes for the v5.5 series 
Drivers:
  * test_power: add support for current and charge_counter
  * cpcap-charger: improve charge calculation and limit default charge voltage
  * ab8500: convert to IIO
  * misc. small fixes all over drivers
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Merge tag 'for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:

 - test_power: add support for current and charge_counter

 - cpcap-charger: improve charge calculation and limit default charge
   voltage

 - ab8500: convert to IIO

 - misc small fixes all over drivers

* tag 'for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (29 commits)
  power: supply: bd70528: Add MODULE_ALIAS to allow module auto loading
  power: supply: ab8500_charger: Fix inconsistent IS_ERR and PTR_ERR
  power: supply: cpcap-charger: cpcap_charger_voltage_to_regval() can be static
  power: supply: cpcap-battery: Add basic coulomb counter calibrate support
  power: supply: cpcap-battery: Read and save integrator register CCI
  power: supply: cpcap-battery: Simplify short term power average calculation
  power: supply: cpcap-battery: Simplify coulomb counter calculation with div_s64
  power: supply: cpcap-battery: Move coulomb counter units per lsb to ddata
  power: supply: cpcap-charger: Allow changing constant charge voltage
  power: supply: cpcap-battery: Fix handling of lowered charger voltage
  power: supply: cpcap-charger: Improve battery detection
  power: supply: cpcap-battery: Check voltage before orderly_poweroff
  power: supply: cpcap-charger: Limit voltage to 4.2V for battery
  power: supply: ab8500: Handle invalid IRQ from platform_get_irq_byname()
  power: supply: ab8500_fg: Do not free non-requested IRQs in probe's error path
  power: supply: ab8500: Cleanup probe in reverse order
  power: reset: at91: fix __le32 cast in reset code
  power: supply: abx500_chargalg: Fix code indentation
  mfd: Switch the AB8500 GPADC to IIO
  iio: adc: New driver for the AB8500 GPADC
  ...
 2019-11-27 09:55:39 -08:00
Dan Carpenter via samba-technical
68464b88cc CIFS: fix a white space issue in cifs_get_inode_info() 
We accidentally messed up the indenting on this if statement.

Fixes: 16c696a6c300 ("CIFS: refactor cifs_get_inode_info()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2019-11-27 11:31:49 -06:00
Linus Torvalds
89d57dddd7 media updates for v5.5-rc1 
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Merge tag 'media/v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - uAPI documentation for stateless decoders

 - Added a new CEC ioctl together with its documentation

 - Improved IPU3 documentation

 - New i2c drivers: hi556 and imx290

 - Added support on Vivid driver for meta streams

 - Added de-interlace support for sunxi subdriver

 - Added a few new remote controler keymaps

 - Added H.265 support for Sunxi Cedrus driver

 - Another round of random driver cleanups, fixes and improvements

* tag 'media/v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (361 commits)
  media: Revert "media: mtk-vcodec: Remove extra area allocation in an input buffer on encoding"
  media: hantro: Set H264 FIELDPIC_FLAG_E flag correctly
  media: hantro: Remove now unused H264 pic_size
  media: hantro: Use output buffer width and height for H264 decoding
  media: hantro: Reduce H264 extra space for motion vectors
  media: hantro: Fix H264 motion vector buffer offset
  media: ti-vpe: vpe: fix compatible to match bindings
  media: dt-bindings: media: ti-vpe: Document VPE driver
  media: zr364xx: remove redundant assigmnent to idx, clean up code
  media: Documentation: media: *_DEFAULT targets for subdevs
  media: hantro: Fix s_fmt for dynamic resolution changes
  media: i2c: Use the correct style for SPDX License Identifier
  media: siano: Use the correct style for SPDX License Identifier
  media: vicodec: media_device_cleanup was called too early
  media: vim2m: media_device_cleanup was called too early
  media: cedrus: Increase maximum supported size
  media: cedrus: Fix H264 4k support
  media: cedrus: Properly signal size in mode register
  media: v4l2-ctrl: Lock main_hdl on operations of requests_queued.
  media: si470x-i2c: add missed operations in remove
  ...
 2019-11-26 20:11:43 -08:00
Linus Torvalds
3f1b210a7f sound updates for 5.5-rc1 
There have been some significant changes in the core side, both for
 ALSA and ASoC, while lots of development have been seen in SOF, as
 well as many small fixes/improvements for ASoC codecs and platforms.
 Below is a highlight in this cycle:
 
 Core:
 - The unification of PCM vmalloc buffer allocation helpers into the
   standard API
 - Clean up of the default PCM mmap handling for vmalloc & SG-buffer
 - Fix potential races at ALSA timer open
 - A few new PCM API extensions; just preliminary core changes, the
   actual changes in drivers will be merged in 5.6
 - Continued ASoC componentization works; now almost everything is a
   common ASoC component object.  A lot of refactoring and
   simplification have been done along with it.
 
 ASoC:
 - Many fixes to the Sound Open Firmware (SOF) code
 - Wake on voice support for Chromebooks
 - SPI support and trigger word detection for RT5677
 - New drivers for Analog Devices ADAU7118, Intel Cannonlake systems
   with RT1011 and RT5682, Texas Instruments TAS2562 and TAS2770
 
 HD-audio:
 - Improved Intel DSP configuration / probe code for SOF
 - Plumbing the legacy HD-audio driver with Intel SOF HDMI
 - DP-MST support for Nvidia HDMI codecs
 - Realtek quirks cleanups and new additions as usual
 
 Others:
 - Lots of refactoring and cleanups for FireWire; period-size sharing,
   h/w IRQ interval configuration, clock recovery improvements, etc
 - USB-audio: Scarlett mixer quirks
 - Cleanups of PCM calls in various drivers (including media and USB)
   to adapt the core API changes
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Merge tag 'sound-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "There have been some significant changes in the core side, both for
  ALSA and ASoC, while lots of development have been seen in SOF, as
  well as many small fixes/improvements for ASoC codecs and platforms.
  Below is a highlight in this cycle:

  Core:
   - The unification of PCM vmalloc buffer allocation helpers into the
     standard API
   - Clean up of the default PCM mmap handling for vmalloc & SG-buffer
   - Fix potential races at ALSA timer open
   - A few new PCM API extensions; just preliminary core changes, the
     actual changes in drivers will be merged in 5.6
   - Continued ASoC componentization works; now almost everything is a
     common ASoC component object. A lot of refactoring and
     simplification have been done along with it.

  ASoC:
   - Many fixes to the Sound Open Firmware (SOF) code
   - Wake on voice support for Chromebooks
   - SPI support and trigger word detection for RT5677
   - New drivers for Analog Devices ADAU7118, Intel Cannonlake systems
     with RT1011 and RT5682, Texas Instruments TAS2562 and TAS2770

  HD-audio:
   - Improved Intel DSP configuration / probe code for SOF
   - Plumbing the legacy HD-audio driver with Intel SOF HDMI
   - DP-MST support for Nvidia HDMI codecs
   - Realtek quirks cleanups and new additions as usual

  Others:
   - Lots of refactoring and cleanups for FireWire; period-size sharing,
     h/w IRQ interval configuration, clock recovery improvements, etc
   - USB-audio: Scarlett mixer quirks
   - Cleanups of PCM calls in various drivers (including media and USB)
     to adapt the core API changes"

* tag 'sound-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (497 commits)
  ALSA: usb-audio: Fix Focusrite Scarlett 6i6 gen1 - input handling
  ALSA: hda/realtek - Enable internal speaker of ASUS UX431FLC
  ALSA: aloop: Fix dependency on timer API
  ASoC: DMI long name - avoid to add board name if matches with product name
  ASoC: improve the DMI long card code in asoc-core
  ASoC: rsnd: fix DALIGN register for SSIU
  ALSA: aloop: Avoid unexpected timer event callback tasklets
  ALSA: aloop: Remove redundant locking in timer open function
  ASoC: component: Add sync_stop PCM ops
  ASoC: pcm: Make ioctl ops optional
  ALSA: hda/hdmi - Clear codec->relaxed_resume flag at unbinding
  ALSA: hda - Disable audio component for legacy Nvidia HDMI codecs
  ALSA: cs4236: fix error return comparison of an unsigned integer
  ALSA: usb-audio: Fix NULL dereference at parsing BADD
  ALSA: usb-audio: Fix Scarlett 6i6 Gen 2 port data
  ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop
  ALSA: hda/realtek - Move some alc236 pintbls to fallback table
  ALSA: hda/realtek - Move some alc256 pintbls to fallback table
  ALSA: docs: Update about the new PCM sync_stop ops
  ALSA: pcm: Add card sync_irq field
  ...
 2019-11-26 20:04:35 -08:00
Linus Torvalds
361b0d286a Device properties framework updates for 5.5-rc1 
Add support for printing fwnode names using a new conversion
 specifier "%pfw" (Sakari Ailus), clean up the software node and
 efi/apple-properties code in preparation for improved software node
 reference properties handling (Dmitry Torokhov) and fix the struct
 fwnode_operations description (Heikki Krogerus).
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Merge tag 'devprop-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull device properties framework updates from Rafael Wysocki:
 "Add support for printing fwnode names using a new conversion specifier
  "%pfw" (Sakari Ailus), clean up the software node and
  efi/apple-properties code in preparation for improved software node
  reference properties handling (Dmitry Torokhov) and fix the struct
  fwnode_operations description (Heikki Krogerus)"

* tag 'devprop-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (22 commits)
  software node: simplify property_entry_read_string_array()
  software node: unify PROPERTY_ENTRY_XXX macros
  software node: remove property_entry_read_uNN_array functions
  software node: get rid of property_set_pointer()
  software node: clean up property_copy_string_array()
  software node: mark internal macros with double underscores
  efi/apple-properties: use PROPERTY_ENTRY_U8_ARRAY_LEN
  software node: introduce PROPERTY_ENTRY_XXX_ARRAY_LEN()
  software node: remove DEV_PROP_MAX
  device property: Fix the description of struct fwnode_operations
  lib/test_printf: Add tests for %pfw printk modifier
  lib/vsprintf: Add %pfw conversion specifier for printing fwnode names
  lib/vsprintf: OF nodes are first and foremost, struct device_nodes
  lib/vsprintf: Make use of fwnode API to obtain node names and separators
  lib/vsprintf: Add a note on re-using %pf or %pF
  lib/vsprintf: Remove support for %pF and %pf in favour of %pS and %ps
  device property: Add a function to obtain a node's prefix
  device property: Add fwnode_get_name for returning the name of a node
  device property: Add functions for accessing node's parents
  device property: Move fwnode_get_parent() up
  ...
 2019-11-26 19:45:12 -08:00
Linus Torvalds
6e9f879684 ACPI updates for 5.5-rc1 
- Update the ACPICA code in the kernel to upstream revision 20191018
    including:
 
    * Fixes for Clang warnings (Bob Moore).
 
    * Fix for possible overflow in get_tick_count() (Bob Moore).
 
    * Introduction of acpi_unload_table() (Bob Moore).
 
    * Debugger and utilities updates (Erik Schmauss).
 
    * Fix for unloading tables loaded via configfs (Nikolaus Voss).
 
  - Add support for EFI specific purpose memory to optionally allow
    either application-exclusive or core-kernel-mm managed access to
    differentiated memory (Dan Williams).
 
  - Fix and clean up processing of the HMAT table (Brice Goglin,
    Qian Cai, Tao Xu).
 
  - Update the ACPI EC driver to make it work on systems with
    hardware-reduced ACPI (Daniel Drake).
 
  - Always build in support for the Generic Event Device (GED) to
    allow one kernel binary to work both on systems with full
    hardware ACPI and hardware-reduced ACPI (Arjan van de Ven).
 
  - Fix the table unload mechanism to unregister platform devices
    created when the given table was loaded (Andy Shevchenko).
 
  - Rework the lid blacklist handling in the button driver and add
    more lid quirks to it (Hans de Goede).
 
  - Improve ACPI-based device enumeration for some platforms based
    on Intel BayTrail SoCs (Hans de Goede).
 
  - Add an OpRegion driver for the Cherry Trail Crystal Cove PMIC
    and prevent handlers from being registered for unhandled PMIC
    OpRegions (Hans de Goede).
 
  - Unify ACPI _HID/_UID matching (Andy Shevchenko).
 
  - Clean up documentation and comments (Cao jin, James Pack, Kacper
    Piwiński).
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Merge tag 'acpi-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to upstream revision
  20191018, add support for EFI specific purpose memory, update the ACPI
  EC driver to make it work on systems with hardware-reduced ACPI,
  improve ACPI-based device enumeration for some platforms, rework the
  lid blacklist handling in the button driver and add more lid quirks to
  it, unify ACPI _HID/_UID matching, fix assorted issues and clean up
  the code and documentation.

  Specifics:

   - Update the ACPICA code in the kernel to upstream revision 20191018
     including:
      * Fixes for Clang warnings (Bob Moore)
      * Fix for possible overflow in get_tick_count() (Bob Moore)
      * Introduction of acpi_unload_table() (Bob Moore)
      * Debugger and utilities updates (Erik Schmauss)
      * Fix for unloading tables loaded via configfs (Nikolaus Voss)

   - Add support for EFI specific purpose memory to optionally allow
     either application-exclusive or core-kernel-mm managed access to
     differentiated memory (Dan Williams)

   - Fix and clean up processing of the HMAT table (Brice Goglin, Qian
     Cai, Tao Xu)

   - Update the ACPI EC driver to make it work on systems with
     hardware-reduced ACPI (Daniel Drake)

   - Always build in support for the Generic Event Device (GED) to allow
     one kernel binary to work both on systems with full hardware ACPI
     and hardware-reduced ACPI (Arjan van de Ven)

   - Fix the table unload mechanism to unregister platform devices
     created when the given table was loaded (Andy Shevchenko)

   - Rework the lid blacklist handling in the button driver and add more
     lid quirks to it (Hans de Goede)

   - Improve ACPI-based device enumeration for some platforms based on
     Intel BayTrail SoCs (Hans de Goede)

   - Add an OpRegion driver for the Cherry Trail Crystal Cove PMIC and
     prevent handlers from being registered for unhandled PMIC OpRegions
     (Hans de Goede)

   - Unify ACPI _HID/_UID matching (Andy Shevchenko)

   - Clean up documentation and comments (Cao jin, James Pack, Kacper
     Piwiński)"

* tag 'acpi-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (52 commits)
  ACPI: OSI: Shoot duplicate word
  ACPI: HMAT: use %u instead of %d to print u32 values
  ACPI: NUMA: HMAT: fix a section mismatch
  ACPI: HMAT: don't mix pxm and nid when setting memory target processor_pxm
  ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device
  ACPI: NUMA: HMAT: Register HMAT at device_initcall level
  device-dax: Add a driver for "hmem" devices
  dax: Fix alloc_dax_region() compile warning
  lib: Uplevel the pmem "region" ida to a global allocator
  x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP
  arm/efi: EFI soft reservation to memblock
  x86/efi: EFI soft reservation to E820 enumeration
  efi: Common enable/disable infrastructure for EFI soft reservation
  x86/efi: Push EFI_MEMMAP check into leaf routines
  efi: Enumerate EFI_MEMORY_SP
  ACPI: NUMA: Establish a new drivers/acpi/numa/ directory
  ACPICA: Update version to 20191018
  ACPICA: debugger: remove leading whitespaces when converting a string to a buffer
  ACPICA: acpiexec: initialize all simple types and field units from user input
  ACPICA: debugger: add field unit support for acpi_db_get_next_token
  ...
 2019-11-26 19:25:25 -08:00
Linus Torvalds
9e7a03233e Power management updates for 5.5-rc1 
- Use nanoseconds (instead of microseconds) as the unit of time in
    the cpuidle core and simplify checks for disabled idle states in
    the idle loop (Rafael Wysocki).
 
  - Fix and clean up the teo cpuidle governor (Rafael Wysocki).
 
  - Fix the cpuidle registration error code path (Zhenzhong Duan).
 
  - Avoid excessive vmexits in the ACPI cpuidle driver (Yin Fengwei).
 
  - Extend the idle injection infrastructure to be able to measure the
    requested duration in nanoseconds and to allow an exit latency
    limit for idle states to be specified (Daniel Lezcano).
 
  - Fix cpufreq driver registration and clarify a comment in the
    cpufreq core (Viresh Kumar).
 
  - Add NULL checks to the show() and store() methods of sysfs
    attributes exposed by cpufreq (Kai Shen).
 
  - Update cpufreq drivers:
 
    * Fix for a plain int as pointer warning from sparse in
      intel_pstate (Jamal Shareef).
 
    * Fix for a hardcoded number of CPUs and stack bloat in the
      powernv driver (John Hubbard).
 
    * Updates to the ti-cpufreq driver and DT files to support new
      platforms and migrate bindings from opp-v1 to opp-v2 (Adam Ford,
      H. Nikolaus Schaller).
 
    * Merging of the arm_big_little and vexpress-spc drivers and
      related cleanup (Sudeep Holla).
 
    * Fix for imx's default speed grade value (Anson Huang).
 
    * Minor cleanup of the s3c64xx driver (Nathan Chancellor).
 
    * CPU speed bin detection fix for sun50i (Ondrej Jirman).
 
  - Appoint Chanwoo Choi as the new devfreq maintainer.
 
  - Update the devfreq core:
 
    * Check NULL governor in available_governors_show sysfs to prevent
      showing wrong governor information and fix a race condition
      between devfreq_update_status() and trans_stat_show() (Leonard
      Crestez).
 
    * Add new 'interrupt-driven' flag for devfreq governors to allow
      interrupt-driven governors to prevent the devfreq core from
      polling devices for status (Dmitry Osipenko).
 
    * Improve an error message in devfreq_add_device() (Matthias
      Kaehlcke).
 
  - Update devfreq drivers:
 
    * tegra30 driver fixes and cleanups (Dmitry Osipenko).
 
    * Removal of unused property from dt-binding documentation for
      the exynos-bus driver (Kamil Konieczny).
 
    * exynos-ppmu cleanup and DT bindings update (Lukasz Luba, Marek
      Szyprowski).
 
  - Add new CPU IDs for CometLake Mobile and Desktop to the Intel RAPL
    power capping driver (Zhang Rui).
 
  - Allow device initialization in the generic power domains (genpd)
    framework to be more straightforward and clean it up (Ulf Hansson).
 
  - Add support for adjusting OPP voltages at run time to the OPP
    framework (Stephen Boyd).
 
  - Avoid freeing memory that has never been allocated in the
    hibernation core (Andy Whitcroft).
 
  - Clean up function headers in a header file and coding style in the
    wakeup IRQs handling code (Ulf Hansson, Xiaofei Tan).
 
  - Clean up the SmartReflex adaptive voltage scaling (AVS) driver for
    ARM (Ben Dooks, Geert Uytterhoeven).
 
  - Wrap power management documentation to fit in 80 columns (Bjorn
    Helgaas).
 
  - Add pm-graph utility entry to MAINTAINERS (Todd Brandt).
 
  - Update the cpupower utility:
 
    * Fix the handling of set and info subcommands (Abhishek Goel).
 
    * Fix build warnings (Nathan Chancellor).
 
    * Improve mperf_monitor handling (Janakarajan Natarajan).
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Merge tag 'pm-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These include cpuidle changes to use nanoseconds (instead of
  microseconds) as the unit of time and to simplify checks for disabled
  idle states in the idle loop, some cpuidle fixes and governor updates,
  assorted cpufreq updates (driver updates mostly and a few core fixes
  and cleanups), devfreq updates (dominated by the tegra30 driver
  changes), new CPU IDs for the RAPL power capping driver, relatively
  minor updates of the generic power domains (genpd) and operation
  performance points (OPP) frameworks, and assorted fixes and cleanups.

  There are also two maintainer information updates: Chanwoo Choi will
  be maintaining the devfreq subsystem going forward and Todd Brandt is
  going to maintain the pm-graph utility (created by him).

  Specifics:

   - Use nanoseconds (instead of microseconds) as the unit of time in
     the cpuidle core and simplify checks for disabled idle states in
     the idle loop (Rafael Wysocki)

   - Fix and clean up the teo cpuidle governor (Rafael Wysocki)

   - Fix the cpuidle registration error code path (Zhenzhong Duan)

   - Avoid excessive vmexits in the ACPI cpuidle driver (Yin Fengwei)

   - Extend the idle injection infrastructure to be able to measure the
     requested duration in nanoseconds and to allow an exit latency
     limit for idle states to be specified (Daniel Lezcano)

   - Fix cpufreq driver registration and clarify a comment in the
     cpufreq core (Viresh Kumar)

   - Add NULL checks to the show() and store() methods of sysfs
     attributes exposed by cpufreq (Kai Shen)

   - Update cpufreq drivers:
      * Fix for a plain int as pointer warning from sparse in
        intel_pstate (Jamal Shareef)
      * Fix for a hardcoded number of CPUs and stack bloat in the
        powernv driver (John Hubbard)
      * Updates to the ti-cpufreq driver and DT files to support new
        platforms and migrate bindings from opp-v1 to opp-v2 (Adam Ford,
        H. Nikolaus Schaller)
      * Merging of the arm_big_little and vexpress-spc drivers and
        related cleanup (Sudeep Holla)
      * Fix for imx's default speed grade value (Anson Huang)
      * Minor cleanup of the s3c64xx driver (Nathan Chancellor)
      * CPU speed bin detection fix for sun50i (Ondrej Jirman)

   - Appoint Chanwoo Choi as the new devfreq maintainer.

   - Update the devfreq core:
      * Check NULL governor in available_governors_show sysfs to prevent
        showing wrong governor information and fix a race condition
        between devfreq_update_status() and trans_stat_show() (Leonard
        Crestez)
      * Add new 'interrupt-driven' flag for devfreq governors to allow
        interrupt-driven governors to prevent the devfreq core from
        polling devices for status (Dmitry Osipenko)
      * Improve an error message in devfreq_add_device() (Matthias
        Kaehlcke)

   - Update devfreq drivers:
      * tegra30 driver fixes and cleanups (Dmitry Osipenko)
      * Removal of unused property from dt-binding documentation for the
        exynos-bus driver (Kamil Konieczny)
      * exynos-ppmu cleanup and DT bindings update (Lukasz Luba, Marek
        Szyprowski)

   - Add new CPU IDs for CometLake Mobile and Desktop to the Intel RAPL
     power capping driver (Zhang Rui)

   - Allow device initialization in the generic power domains (genpd)
     framework to be more straightforward and clean it up (Ulf Hansson)

   - Add support for adjusting OPP voltages at run time to the OPP
     framework (Stephen Boyd)

   - Avoid freeing memory that has never been allocated in the
     hibernation core (Andy Whitcroft)

   - Clean up function headers in a header file and coding style in the
     wakeup IRQs handling code (Ulf Hansson, Xiaofei Tan)

   - Clean up the SmartReflex adaptive voltage scaling (AVS) driver for
     ARM (Ben Dooks, Geert Uytterhoeven)

   - Wrap power management documentation to fit in 80 columns (Bjorn
     Helgaas)

   - Add pm-graph utility entry to MAINTAINERS (Todd Brandt)

   - Update the cpupower utility:
      * Fix the handling of set and info subcommands (Abhishek Goel)
      * Fix build warnings (Nathan Chancellor)
      * Improve mperf_monitor handling (Janakarajan Natarajan)"

* tag 'pm-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (83 commits)
  PM: Wrap documentation to fit in 80 columns
  cpuidle: Pass exit latency limit to cpuidle_use_deepest_state()
  cpuidle: Allow idle injection to apply exit latency limit
  cpuidle: Introduce cpuidle_driver_state_disabled() for driver quirks
  cpuidle: teo: Avoid code duplication in conditionals
  cpufreq: Register drivers only after CPU devices have been registered
  cpuidle: teo: Avoid using "early hits" incorrectly
  cpuidle: teo: Exclude cpuidle overhead from computations
  PM / Domains: Convert to dev_to_genpd_safe() in genpd_syscore_switch()
  mmc: tmio: Avoid boilerplate code in ->runtime_suspend()
  PM / Domains: Implement the ->start() callback for genpd
  PM / Domains: Introduce dev_pm_domain_start()
  ARM: OMAP2+: SmartReflex: add omap_sr_pdata definition
  PM / wakeirq: remove unnecessary parentheses
  power: avs: smartreflex: Remove superfluous cast in debugfs_create_file() call
  cpuidle: Use nanoseconds as the unit of time
  PM / OPP: Support adjusting OPP voltages at runtime
  PM / core: Clean up some function headers in power.h
  cpufreq: Add NULL checks to show() and store() methods of cpufreq
  cpufreq: intel_pstate: Fix plain int as pointer warning from sparse
  ...
 2019-11-26 19:06:44 -08:00
Linus Torvalds
c2da5bdc66 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 merge fix from Ingo Molnar:
 "I missed one other semantic conflict that can result in build failures
  on certain stripped down x86 32-bit configs, for example 32-bit
  'allnoconfig' where CONFIG_X86_IOPL_IOPERM gets turned off"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/iopl: Make 'struct tss_struct' constant size again
 2019-11-26 17:12:12 -08:00
Linus Torvalds
168829ad09 Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull locking updates from Ingo Molnar:
 "The main changes in this cycle were:

   - A comprehensive rewrite of the robust/PI futex code's exit handling
     to fix various exit races. (Thomas Gleixner et al)

   - Rework the generic REFCOUNT_FULL implementation using
     atomic_fetch_* operations so that the performance impact of the
     cmpxchg() loops is mitigated for common refcount operations.

     With these performance improvements the generic implementation of
     refcount_t should be good enough for everybody - and this got
     confirmed by performance testing, so remove ARCH_HAS_REFCOUNT and
     REFCOUNT_FULL entirely, leaving the generic implementation enabled
     unconditionally. (Will Deacon)

   - Other misc changes, fixes, cleanups"

* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
  lkdtm: Remove references to CONFIG_REFCOUNT_FULL
  locking/refcount: Remove unused 'refcount_error_report()' function
  locking/refcount: Consolidate implementations of refcount_t
  locking/refcount: Consolidate REFCOUNT_{MAX,SATURATED} definitions
  locking/refcount: Move saturation warnings out of line
  locking/refcount: Improve performance of generic REFCOUNT_FULL code
  locking/refcount: Move the bulk of the REFCOUNT_FULL implementation into the <linux/refcount.h> header
  locking/refcount: Remove unused refcount_*_checked() variants
  locking/refcount: Ensure integer operands are treated as signed
  locking/refcount: Define constants for saturation and max refcount values
  futex: Prevent exit livelock
  futex: Provide distinct return value when owner is exiting
  futex: Add mutex around futex exit
  futex: Provide state handling for exec() as well
  futex: Sanitize exit state handling
  futex: Mark the begin of futex exit explicitly
  futex: Set task::futex_state to DEAD right after handling futex exit
  futex: Split futex_mm_release() for exit/exec
  exit/exec: Seperate mm_release()
  futex: Replace PF_EXITPIDONE with a state
  ...
 2019-11-26 16:02:40 -08:00
Jeroen de Borst
a95069ecb7 gve: Fix the queue page list allocated pages count 
In gve_alloc_queue_page_list(), when a page allocation fails,
qpl->num_entries will be wrong.  In this case priv->num_registered_pages
can underflow in gve_free_queue_page_list(), causing subsequent calls
to gve_alloc_queue_page_list() to fail.

Fixes: f5cedc84a3 ("gve: Add transmit and receive support")
Signed-off-by: Jeroen de Borst <jeroendb@google.com>
Reviewed-by: Catherine Sullivan <csully@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 15:52:34 -08:00
Linus Torvalds
1ae78780ed 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 main changes in this cycle were:

   - Dynamic tick (nohz) updates, perhaps most notably changes to force
     the tick on when needed due to lengthy in-kernel execution on CPUs
     on which RCU is waiting.

   - Linux-kernel memory consistency model updates.

   - Replace rcu_swap_protected() with rcu_prepace_pointer().

   - Torture-test updates.

   - Documentation updates.

   - Miscellaneous fixes"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
  security/safesetid: Replace rcu_swap_protected() with rcu_replace_pointer()
  net/sched: Replace rcu_swap_protected() with rcu_replace_pointer()
  net/netfilter: Replace rcu_swap_protected() with rcu_replace_pointer()
  net/core: Replace rcu_swap_protected() with rcu_replace_pointer()
  bpf/cgroup: Replace rcu_swap_protected() with rcu_replace_pointer()
  fs/afs: Replace rcu_swap_protected() with rcu_replace_pointer()
  drivers/scsi: Replace rcu_swap_protected() with rcu_replace_pointer()
  drm/i915: Replace rcu_swap_protected() with rcu_replace_pointer()
  x86/kvm/pmu: Replace rcu_swap_protected() with rcu_replace_pointer()
  rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer()
  rcu: Suppress levelspread uninitialized messages
  rcu: Fix uninitialized variable in nocb_gp_wait()
  rcu: Update descriptions for rcu_future_grace_period tracepoint
  rcu: Update descriptions for rcu_nocb_wake tracepoint
  rcu: Remove obsolete descriptions for rcu_barrier tracepoint
  rcu: Ensure that ->rcu_urgent_qs is set before resched IPI
  workqueue: Convert for_each_wq to use built-in list check
  rcu: Several rcu_segcblist functions can be static
  rcu: Remove unused function hlist_bl_del_init_rcu()
  Documentation: Rename rcu_node_context_switch() to rcu_note_context_switch()
  ...
 2019-11-26 15:42:43 -08:00
Linus Torvalds
77a05940ee Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull scheduler updates from Ingo Molnar:
 "The biggest changes in this cycle were:

   - Make kcpustat vtime aware (Frederic Weisbecker)

   - Rework the CFS load_balance() logic (Vincent Guittot)

   - Misc cleanups, smaller enhancements, fixes.

  The load-balancing rework is the most intrusive change: it replaces
  the old heuristics that have become less meaningful after the
  introduction of the PELT metrics, with a grounds-up load-balancing
  algorithm.

  As such it's not really an iterative series, but replaces the old
  load-balancing logic with the new one. We hope there are no
  performance regressions left - but statistically it's highly probable
  that there *is* going to be some workload that is hurting from these
  chnages. If so then we'd prefer to have a look at that workload and
  fix its scheduling, instead of reverting the changes"

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
  rackmeter: Use vtime aware kcpustat accessor
  leds: Use all-in-one vtime aware kcpustat accessor
  cpufreq: Use vtime aware kcpustat accessors for user time
  procfs: Use all-in-one vtime aware kcpustat accessor
  sched/vtime: Bring up complete kcpustat accessor
  sched/cputime: Support other fields on kcpustat_field()
  sched/cpufreq: Move the cfs_rq_util_change() call to cpufreq_update_util()
  sched/fair: Add comments for group_type and balancing at SD_NUMA level
  sched/fair: Fix rework of find_idlest_group()
  sched/uclamp: Fix overzealous type replacement
  sched/Kconfig: Fix spelling mistake in user-visible help text
  sched/core: Further clarify sched_class::set_next_task()
  sched/fair: Use mul_u32_u32()
  sched/core: Simplify sched_class::pick_next_task()
  sched/core: Optimize pick_next_task()
  sched/core: Make pick_next_task_idle() more consistent
  sched/fair: Better document newidle_balance()
  leds: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
  cpufreq: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
  procfs: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
  ...
 2019-11-26 15:23:14 -08:00
Maciej Żenczykowski
66e2f5f7c7 net: inet_is_local_reserved_port() port arg should be unsigned short 
Any argument outside of that range would result in an out of bound
memory access, since the accessed array is 65536 bits long.

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 15:15:07 -08:00
Paolo Abeni
4e81c0b3fa openvswitch: fix flow command message size 
When user-space sets the OVS_UFID_F_OMIT_* flags, and the relevant
flow has no UFID, we can exceed the computed size, as
ovs_nla_put_identifier() will always dump an OVS_FLOW_ATTR_KEY
attribute.
Take the above in account when computing the flow command message
size.

Fixes: 74ed7ab926 ("openvswitch: Add support for unique flow IDs.")
Reported-by: Qi Jun Ding <qding@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 15:13:46 -08:00
Linus Torvalds
3f59dbcace Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull perf updates from Ingo Molnar:
 "The main kernel side changes in this cycle were:

   - Various Intel-PT updates and optimizations (Alexander Shishkin)

   - Prohibit kprobes on Xen/KVM emulate prefixes (Masami Hiramatsu)

   - Add support for LSM and SELinux checks to control access to the
     perf syscall (Joel Fernandes)

   - Misc other changes, optimizations, fixes and cleanups - see the
     shortlog for details.

  There were numerous tooling changes as well - 254 non-merge commits.
  Here are the main changes - too many to list in detail:

   - Enhancements to core tooling infrastructure, perf.data, libperf,
     libtraceevent, event parsing, vendor events, Intel PT, callchains,
     BPF support and instruction decoding.

   - There were updates to the following tools:

        perf annotate
        perf diff
        perf inject
        perf kvm
        perf list
        perf maps
        perf parse
        perf probe
        perf record
        perf report
        perf script
        perf stat
        perf test
        perf trace

   - And a lot of other changes: please see the shortlog and Git log for
     more details"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (279 commits)
  perf parse: Fix potential memory leak when handling tracepoint errors
  perf probe: Fix spelling mistake "addrees" -> "address"
  libtraceevent: Fix memory leakage in copy_filter_type
  libtraceevent: Fix header installation
  perf intel-bts: Does not support AUX area sampling
  perf intel-pt: Add support for decoding AUX area samples
  perf intel-pt: Add support for recording AUX area samples
  perf pmu: When using default config, record which bits of config were changed by the user
  perf auxtrace: Add support for queuing AUX area samples
  perf session: Add facility to peek at all events
  perf auxtrace: Add support for dumping AUX area samples
  perf inject: Cut AUX area samples
  perf record: Add aux-sample-size config term
  perf record: Add support for AUX area sampling
  perf auxtrace: Add support for AUX area sample recording
  perf auxtrace: Move perf_evsel__find_pmu()
  perf record: Add a function to test for kernel support for AUX area sampling
  perf tools: Add kernel AUX area sampling definitions
  perf/core: Make the mlock accounting simple again
  perf report: Jump to symbol source view from total cycles view
  ...
 2019-11-26 15:04:47 -08:00
Linus Torvalds
df28204bb0 Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull EFI updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Wire up the EFI RNG code for x86. This enables an additional source
     of entropy during early boot.

   - Enable the TPM event log code on ARM platforms.

   - Update Ard's email address"

* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: libstub/tpm: enable tpm eventlog function for ARM platforms
  x86: efi/random: Invoke EFI_RNG_PROTOCOL to seed the UEFI RNG table
  efi/random: use arch-independent efi_call_proto()
  MAINTAINERS: update Ard's email address to @kernel.org
 2019-11-26 14:52:11 -08:00
Linus Torvalds
3f61281390 Merge branch 'core-stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull stacktrace cleanup from Ingo Molnar:
 "A minor cleanup"

* 'core-stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  stacktrace: Get rid of unneeded '!!' pattern
 2019-11-26 14:47:19 -08:00
Dan Murphy
786c4a5372 net: phy: dp83869: Fix return paths to return proper values 
Fix the return paths for all I/O operations to ensure
that the I/O completed successfully.  Then pass the return
to the caller for further processing

Fixes: 01db923e83 ("net: phy: dp83869: Add TI dp83869 phy")
Reported-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 14:42:55 -08:00
Nikolay Aleksandrov
7eb9d7675c net: psample: fix skb_over_panic 
We need to calculate the skb size correctly otherwise we risk triggering
skb_over_panic[1]. The issue is that data_len is added to the skb in a
nl attribute, but we don't account for its header size (nlattr 4 bytes)
and alignment. We account for it when calculating the total size in
the > PSAMPLE_MAX_PACKET_SIZE comparison correctly, but not when
allocating after that. The fix is simple - use nla_total_size() for
data_len when allocating.

To reproduce:
 $ tc qdisc add dev eth1 clsact
 $ tc filter add dev eth1 egress matchall action sample rate 1 group 1 trunc 129
 $ mausezahn eth1 -b bcast -a rand -c 1 -p 129
 < skb_over_panic BUG(), tail is 4 bytes past skb->end >

[1] Trace:
 [   50.459526][ T3480] skbuff: skb_over_panic: text:(____ptrval____) len:196 put:136 head:(____ptrval____) data:(____ptrval____) tail:0xc4 end:0xc0 dev:<NULL>
 [   50.474339][ T3480] ------------[ cut here ]------------
 [   50.481132][ T3480] kernel BUG at net/core/skbuff.c:108!
 [   50.486059][ T3480] invalid opcode: 0000 [#1] PREEMPT SMP
 [   50.489463][ T3480] CPU: 3 PID: 3480 Comm: mausezahn Not tainted 5.4.0-rc7 #108
 [   50.492844][ T3480] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-2.fc30 04/01/2014
 [   50.496551][ T3480] RIP: 0010:skb_panic+0x79/0x7b
 [   50.498261][ T3480] Code: bc 00 00 00 41 57 4c 89 e6 48 c7 c7 90 29 9a 83 4c 8b 8b c0 00 00 00 50 8b 83 b8 00 00 00 50 ff b3 c8 00 00 00 e8 ae ef c0 fe <0f> 0b e8 2f df c8 fe 48 8b 55 08 44 89 f6 4c 89 e7 48 c7 c1 a0 22
 [   50.504111][ T3480] RSP: 0018:ffffc90000447a10 EFLAGS: 00010282
 [   50.505835][ T3480] RAX: 0000000000000087 RBX: ffff888039317d00 RCX: 0000000000000000
 [   50.507900][ T3480] RDX: 0000000000000000 RSI: ffffffff812716e1 RDI: 00000000ffffffff
 [   50.509820][ T3480] RBP: ffffc90000447a60 R08: 0000000000000001 R09: 0000000000000000
 [   50.511735][ T3480] R10: ffffffff81d4f940 R11: 0000000000000000 R12: ffffffff834a22b0
 [   50.513494][ T3480] R13: ffffffff82c10433 R14: 0000000000000088 R15: ffffffff838a8084
 [   50.515222][ T3480] FS:  00007f3536462700(0000) GS:ffff88803eac0000(0000) knlGS:0000000000000000
 [   50.517135][ T3480] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 [   50.518583][ T3480] CR2: 0000000000442008 CR3: 000000003b222000 CR4: 00000000000006e0
 [   50.520723][ T3480] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 [   50.522709][ T3480] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 [   50.524450][ T3480] Call Trace:
 [   50.525214][ T3480]  skb_put.cold+0x1b/0x1b
 [   50.526171][ T3480]  psample_sample_packet+0x1d3/0x340
 [   50.527307][ T3480]  tcf_sample_act+0x178/0x250
 [   50.528339][ T3480]  tcf_action_exec+0xb1/0x190
 [   50.529354][ T3480]  mall_classify+0x67/0x90
 [   50.530332][ T3480]  tcf_classify+0x72/0x160
 [   50.531286][ T3480]  __dev_queue_xmit+0x3db/0xd50
 [   50.532327][ T3480]  dev_queue_xmit+0x18/0x20
 [   50.533299][ T3480]  packet_sendmsg+0xee7/0x2090
 [   50.534331][ T3480]  sock_sendmsg+0x54/0x70
 [   50.535271][ T3480]  __sys_sendto+0x148/0x1f0
 [   50.536252][ T3480]  ? tomoyo_file_ioctl+0x23/0x30
 [   50.537334][ T3480]  ? ksys_ioctl+0x5e/0xb0
 [   50.540068][ T3480]  __x64_sys_sendto+0x2a/0x30
 [   50.542810][ T3480]  do_syscall_64+0x73/0x1f0
 [   50.545383][ T3480]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
 [   50.548477][ T3480] RIP: 0033:0x7f35357d6fb3
 [   50.551020][ T3480] Code: 48 8b 0d 18 90 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d f9 d3 20 00 00 75 13 49 89 ca b8 2c 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 eb f6 ff ff 48 89 04 24
 [   50.558547][ T3480] RSP: 002b:00007ffe0c7212c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
 [   50.561870][ T3480] RAX: ffffffffffffffda RBX: 0000000001dac010 RCX: 00007f35357d6fb3
 [   50.565142][ T3480] RDX: 0000000000000082 RSI: 0000000001dac2a2 RDI: 0000000000000003
 [   50.568469][ T3480] RBP: 00007ffe0c7212f0 R08: 00007ffe0c7212d0 R09: 0000000000000014
 [   50.571731][ T3480] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000082
 [   50.574961][ T3480] R13: 0000000001dac2a2 R14: 0000000000000001 R15: 0000000000000003
 [   50.578170][ T3480] Modules linked in: sch_ingress virtio_net
 [   50.580976][ T3480] ---[ end trace 61a515626a595af6 ]---

CC: Yotam Gigi <yotamg@mellanox.com>
CC: Jiri Pirko <jiri@mellanox.com>
CC: Jamal Hadi Salim <jhs@mojatatu.com>
CC: Simon Horman <simon.horman@netronome.com>
CC: Roopa Prabhu <roopa@cumulusnetworks.com>
Fixes: 6ae0a62861 ("net: Introduce psample, a new genetlink channel for packet sampling")
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 14:40:13 -08:00
David S. Miller
14c59dcde6 Merge branch 'net-func-cast' 
Phong Tran says:

====================
Fix -Wcast-function-type usb net drivers

Change log with v1:
 - Modify suffix of patch subject.
 - Did the checkpatch.pl (remove the space, add a blank line).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 14:03:58 -08:00
Phong Tran
2eb1d3f4bc net: usbnet: Fix -Wcast-function-type 
correct usage prototype of callback in tasklet_init().
Report by https://github.com/KSPP/linux/issues/20

Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 14:03:58 -08:00
Phong Tran
1d4a09dadb net: hso: Fix -Wcast-function-type 
correct usage prototype of callback in tasklet_init().
Report by https://github.com/KSPP/linux/issues/20

Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 14:03:58 -08:00
Jens Axboe
e944475e69 io_uring: make poll->wait dynamically allocated 
In the quest to bring io_kiocb down to 3 cachelines, this one does
the trick. Make the wait_queue_entry for the poll command come out
of kmalloc instead of embedding it in struct io_poll_iocb, as the
latter is the largest member of io_kiocb. Once we trim this down a
bit, we're back at a healthy 192 bytes for struct io_kiocb.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2019-11-26 15:02:56 -07:00
Jens Axboe
6206f0e180 io-wq: shrink io_wq_work a bit 
Currently we're using 40 bytes for the io_wq_work structure, and 16 of
those is the doubly link list node. We don't need doubly linked lists,
we always add to tail to keep things ordered, and any other use case
is list traversal with deletion. For the deletion case, we can easily
support any node deletion by keeping track of the previous entry.

This shrinks io_wq_work to 32 bytes, and subsequently io_kiock from
io_uring to 216 to 208 bytes.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2019-11-26 15:02:56 -07:00
Jann Horn
3fc50ab559 io-wq: fix handling of NUMA node IDs 
There are several things that can go wrong in the current code on NUMA
systems, especially if not all nodes are online all the time:

 - If the identifiers of the online nodes do not form a single contiguous
   block starting at zero, wq->wqes will be too small, and OOB memory
   accesses will occur e.g. in the loop in io_wq_create().
 - If a node comes online between the call to num_online_nodes() and the
   for_each_node() loop in io_wq_create(), an OOB write will occur.
 - If a node comes online between io_wq_create() and io_wq_enqueue(), a
   lookup is performed for an element that doesn't exist, and an OOB read
   will probably occur.

Fix it by:

 - using nr_node_ids instead of num_online_nodes() for the allocation size;
   nr_node_ids is calculated by setup_nr_node_ids() to be bigger than the
   highest node ID that could possibly come online at some point, even if
   those nodes' identifiers are not a contiguous block
 - creating workers for all possible CPUs, not just all online ones

This is basically what the normal workqueue code also does, as far as I can
tell.

Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2019-11-26 15:02:56 -07:00
Jann Horn
ad6e005ca6 io_uring: use kzalloc instead of kcalloc for single-element allocations 
These allocations are single-element allocations, so don't use the array
allocation wrapper for them.

Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2019-11-26 15:02:56 -07:00
Pavel Begunkov
7d00916555 io_uring: cleanup io_import_fixed() 
Clean io_import_fixed() call site and make it return proper type.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2019-11-26 15:02:56 -07:00
Pavel Begunkov
cf6fd4bd55 io_uring: inline struct sqe_submit 
There is no point left in keeping struct sqe_submit. Inline it
into struct io_kiocb, so any req->submit.field is now just req->field

- moves initialisation of ring_file into io_get_req()
- removes duplicated req->sequence.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2019-11-26 15:02:56 -07:00
Pavel Begunkov
cc42e0ac17 io_uring: store timeout's sqe->off in proper place 
Timeouts' sequence offset (i.e. sqe->off) is stored in
req->submit.sequence under a false name. Keep it in timeout.data
instead. The unused space for sequence will be reclaimed in the
following patches.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2019-11-26 15:02:56 -07:00
Jens Axboe
d69e07793f net: disallow ancillary data for __sys_{send,recv}msg_file() 
Only io_uring uses (and added) these, and we want to disallow the
use of sendmsg/recvmsg for anything but regular data transfers.
Use the newly added prep helper to split the msghdr copy out from
the core function, to check for msg_control and msg_controllen
settings. If either is set, we return -EINVAL.

Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2019-11-26 15:02:53 -07:00
Jens Axboe
4257c8ca13 net: separate out the msghdr copy from ___sys_{send,recv}msg() 
This is in preparation for enabling the io_uring helpers for sendmsg
and recvmsg to first copy the header for validation before continuing
with the operation.

There should be no functional changes in this patch.

Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2019-11-26 15:02:41 -07:00
Maciej Żenczykowski
82f31ebf61 net: port < inet_prot_sock(net) --> inet_port_requires_bind_service(net, port) 
Note that the sysctl write accessor functions guarantee that:
  net->ipv4.sysctl_ip_prot_sock <= net->ipv4.ip_local_ports.range[0]
invariant is maintained, and as such the max() in selinux hooks is actually spurious.

ie. even though
  if (snum < max(inet_prot_sock(sock_net(sk)), low) || snum > high) {
per logic is the same as
  if ((snum < inet_prot_sock(sock_net(sk)) && snum < low) || snum > high) {
it is actually functionally equivalent to:
  if (snum < low || snum > high) {
which is equivalent to:
  if (snum < inet_prot_sock(sock_net(sk)) || snum < low || snum > high) {
even though the first clause is spurious.

But we want to hold on to it in case we ever want to change what what
inet_port_requires_bind_service() means (for example by changing
it from a, by default, [0..1024) range to some sort of set).

Test: builds, git 'grep inet_prot_sock' finds no other references
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 13:20:46 -08:00
David S. Miller
e94a5d1681 Merge branch 'ibmvnic-Harden-device-commands-and-queries' 
Thomas Falcon says:

====================
ibmvnic: Harden device commands and queries

This patch series fixes some shortcomings with the current
VNIC device command implementation. The first patch fixes
the initialization of driver completion structures used
for device commands. Additionally, all waits for device
commands are bounded with a timeout in the event that the
device does not respond or becomes inoperable. Finally,
serialize queries to retain the integrity of device return
codes.

Changes in v2:

 - included header comment for ibmvnic_wait_for_completion
 - removed open-coded loop in patch 3/4, suggested by Jakub
 - ibmvnic_wait_for_completion accepts timeout value in milliseconds
   instead of jiffies
 - timeout calculations cleaned up and completed before wait loop
 - included missing mutex_destroy calls, suggested by Jakub
 - included comment before mutex declaration
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 13:19:31 -08:00
Thomas Falcon
ff25dcb9a1 ibmvnic: Serialize device queries 
Provide some serialization for device CRQ commands
and queries to ensure that the shared variable used for
storing return codes is properly synchronized.

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 13:19:31 -08:00
Thomas Falcon
476d96ca9c ibmvnic: Bound waits for device queries 
Create a wrapper for wait_for_completion calls with additional
driver checks to ensure that the driver does not wait on a
disabled device. In those cases or if the device does not respond
in an extended amount of time, this will allow the driver an
opportunity to recover.

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 13:19:31 -08:00
Thomas Falcon
2147e3d09e ibmvnic: Terminate waiting device threads after loss of service 
If we receive a notification that the device has been deactivated
or removed, force a completion of all waiting threads.

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 13:19:31 -08:00
Thomas Falcon
070eca955c ibmvnic: Fix completion structure initialization 
Fix multiple calls to init_completion for device completion
structures. Instead, initialize them during device probe and
reinitialize them later as needed.

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 13:19:30 -08:00
Maciej Żenczykowski
fb8223888e net-sctp: replace some sock_net(sk) with just 'net' 
It already existed in part of the function, but move it
to a higher level and use it consistently throughout.

Safe since sk is never written to.

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 13:18:32 -08:00
Maciej Żenczykowski
ac71676c49 net: Fix a documentation bug wrt. ip_unprivileged_port_start 
It cannot overlap with the local port range - ie. with autobind selectable
ports - and not with reserved ports.

Indeed 'ip_local_reserved_ports' isn't even a range, it's a (by default
empty) set.

Fixes: 4548b683b7 ("Introduce a sysctl that modifies the value of PROT_SOCK.")
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 13:17:49 -08:00
Ingo Molnar
0bcd776272 x86/iopl: Make 'struct tss_struct' constant size again 
After the following commit:

  05b042a194: ("x86/pti/32: Calculate the various PTI cpu_entry_area sizes correctly, make the CPU_ENTRY_AREA_PAGES assert precise")

'struct cpu_entry_area' has to be Kconfig invariant, so that we always
have a matching CPU_ENTRY_AREA_PAGES size.

This commit added a CONFIG_X86_IOPL_IOPERM dependency to tss_struct:

  111e7b15cf: ("x86/ioperm: Extend IOPL config to control ioperm() as well")

Which, if CONFIG_X86_IOPL_IOPERM is turned off, reduces the size of
cpu_entry_area by two pages, triggering the assert:

  ./include/linux/compiler.h:391:38: error: call to ‘__compiletime_assert_202’ declared with attribute error: BUILD_BUG_ON failed: (CPU_ENTRY_AREA_PAGES+1)*PAGE_SIZE != CPU_ENTRY_AREA_MAP_SIZE

Simplify the Kconfig dependencies and make cpu_entry_area constant
size on 32-bit kernels again.

Fixes: 05b042a194: ("x86/pti/32: Calculate the various PTI cpu_entry_area sizes correctly, make the CPU_ENTRY_AREA_PAGES assert precise")
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 2019-11-26 21:49:04 +01:00
Linus Torvalds
2be7d348fe Revert "vfs: properly and reliably lock f_pos in fdget_pos()" 
This reverts commit 0be0ee7181.

I was hoping it would be benign to switch over entirely to FMODE_STREAM,
and we'd have just a couple of small fixups we'd need, but it looks like
we're not quite there yet.

While it worked fine on both my desktop and laptop, they are fairly
similar in other respects, and run mostly the same loads.  Kenneth
Crudup reports that it seems to break both his vmware installation and
the KDE upower service.  In both cases apparently leading to timeouts
due to waitinmg for the f_pos lock.

There are a number of character devices in particular that definitely
want stream-like behavior, but that currently don't get marked as
streams, and as a result get the exclusion between concurrent
read()/write() on the same file descriptor.  Which doesn't work well for
them.

The most obvious example if this is /dev/console and /dev/tty, which use
console_fops and tty_fops respectively (and ptmx_fops for the pty master
side).  It may be that it's just this that causes problems, but we
clearly weren't ready yet.

Because there's a number of other likely common cases that don't have
llseek implementations and would seem to act as stream devices:

  /dev/fuse		(fuse_dev_operations)
  /dev/mcelog		(mce_chrdev_ops)
  /dev/mei0		(mei_fops)
  /dev/net/tun		(tun_fops)
  /dev/nvme0		(nvme_dev_fops)
  /dev/tpm0		(tpm_fops)
  /proc/self/ns/mnt	(ns_file_operations)
  /dev/snd/pcm*		(snd_pcm_f_ops[])

and while some of these could be trivially automatically detected by the
vfs layer when the character device is opened by just noticing that they
have no read or write operations either, it often isn't that obvious.

Some character devices most definitely do use the file position, even if
they don't allow seeking: the firmware update code, for example, uses
simple_read_from_buffer() that does use f_pos, but doesn't allow seeking
back and forth.

We'll revisit this when there's a better way to detect the problem and
fix it (possibly with a coccinelle script to do more of the FMODE_STREAM
annotations).

Reported-by: Kenneth R. Crudup <kenny@panix.com>
Cc: Kirill Smelkov <kirr@nexedi.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2019-11-26 11:34:06 -08:00
Linus Torvalds
ab851d49f6 Merge branch 'x86-iopl-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 iopl updates from Ingo Molnar:
 "This implements a nice simplification of the iopl and ioperm code that
  Thomas Gleixner discovered: we can implement the IO privilege features
  of the iopl system call by using the IO permission bitmap in
  permissive mode, while trapping CLI/STI/POPF/PUSHF uses in user-space
  if they change the interrupt flag.

  This implements that feature, with testing facilities and related
  cleanups"

[ "Simplification" may be an over-statement. The main goal is to avoid
  the cli/sti of iopl by effectively implementing the IO port access
  parts of iopl in terms of ioperm.

  This may end up not workign well in case people actually depend on
  cli/sti being available, or if there are mixed uses of iopl and
  ioperm. We will see..       - Linus ]

* 'x86-iopl-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
  x86/ioperm: Fix use of deprecated config option
  x86/entry/32: Clarify register saving in __switch_to_asm()
  selftests/x86/iopl: Extend test to cover IOPL emulation
  x86/ioperm: Extend IOPL config to control ioperm() as well
  x86/iopl: Remove legacy IOPL option
  x86/iopl: Restrict iopl() permission scope
  x86/iopl: Fixup misleading comment
  selftests/x86/ioperm: Extend testing so the shared bitmap is exercised
  x86/ioperm: Share I/O bitmap if identical
  x86/ioperm: Remove bitmap if all permissions dropped
  x86/ioperm: Move TSS bitmap update to exit to user work
  x86/ioperm: Add bitmap sequence number
  x86/ioperm: Move iobitmap data into a struct
  x86/tss: Move I/O bitmap data into a seperate struct
  x86/io: Speedup schedule out of I/O bitmap user
  x86/ioperm: Avoid bitmap allocation if no permissions are set
  x86/ioperm: Simplify first ioperm() invocation logic
  x86/iopl: Cleanup include maze
  x86/tss: Fix and move VMX BUILD_BUG_ON()
  x86/cpu: Unify cpu_init()
  ...
 2019-11-26 11:12:02 -08:00
Linus Torvalds
1d87200446 Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 asm updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Cross-arch changes to move the linker sections for NOTES and
     EXCEPTION_TABLE into the RO_DATA area, where they belong on most
     architectures. (Kees Cook)

   - Switch the x86 linker fill byte from x90 (NOP) to 0xcc (INT3), to
     trap jumps into the middle of those padding areas instead of
     sliding execution. (Kees Cook)

   - A thorough cleanup of symbol definitions within x86 assembler code.
     The rather randomly named macros got streamlined around a
     (hopefully) straightforward naming scheme:

        SYM_START(name, linkage, align...)
        SYM_END(name, sym_type)

        SYM_FUNC_START(name)
        SYM_FUNC_END(name)

        SYM_CODE_START(name)
        SYM_CODE_END(name)

        SYM_DATA_START(name)
        SYM_DATA_END(name)

     etc - with about three times of these basic primitives with some
     label, local symbol or attribute variant, expressed via postfixes.

     No change in functionality intended. (Jiri Slaby)

   - Misc other changes, cleanups and smaller fixes"

* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (67 commits)
  x86/entry/64: Remove pointless jump in paranoid_exit
  x86/entry/32: Remove unused resume_userspace label
  x86/build/vdso: Remove meaningless CFLAGS_REMOVE_*.o
  m68k: Convert missed RODATA to RO_DATA
  x86/vmlinux: Use INT3 instead of NOP for linker fill bytes
  x86/mm: Report actual image regions in /proc/iomem
  x86/mm: Report which part of kernel image is freed
  x86/mm: Remove redundant address-of operators on addresses
  xtensa: Move EXCEPTION_TABLE to RO_DATA segment
  powerpc: Move EXCEPTION_TABLE to RO_DATA segment
  parisc: Move EXCEPTION_TABLE to RO_DATA segment
  microblaze: Move EXCEPTION_TABLE to RO_DATA segment
  ia64: Move EXCEPTION_TABLE to RO_DATA segment
  h8300: Move EXCEPTION_TABLE to RO_DATA segment
  c6x: Move EXCEPTION_TABLE to RO_DATA segment
  arm64: Move EXCEPTION_TABLE to RO_DATA segment
  alpha: Move EXCEPTION_TABLE to RO_DATA segment
  x86/vmlinux: Move EXCEPTION_TABLE to RO_DATA segment
  x86/vmlinux: Actually use _etext for the end of the text segment
  vmlinux.lds.h: Allow EXCEPTION_TABLE to live in RO_DATA
  ...
 2019-11-26 10:42:40 -08:00
Linus Torvalds
5c4a1c090d Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 fixes from Ingo Molnar:
 "These are the fixes left over from the v5.4 cycle:

   - Various low level 32-bit entry code fixes and improvements by Andy
     Lutomirski, Peter Zijlstra and Thomas Gleixner.

   - Fix 32-bit Xen PV breakage, by Jan Beulich"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/entry/32: Fix FIXUP_ESPFIX_STACK with user CR3
  x86/pti/32: Calculate the various PTI cpu_entry_area sizes correctly, make the CPU_ENTRY_AREA_PAGES assert precise
  selftests/x86/sigreturn/32: Invalidate DS and ES when abusing the kernel
  selftests/x86/mov_ss_trap: Fix the SYSENTER test
  x86/entry/32: Fix NMI vs ESPFIX
  x86/entry/32: Unwind the ESPFIX stack earlier on exception entry
  x86/entry/32: Move FIXUP_FRAME after pushing %fs in SAVE_ALL
  x86/entry/32: Use %ss segment where required
  x86/entry/32: Fix IRET exception
  x86/cpu_entry_area: Add guard page for entry stack on 32bit
  x86/pti/32: Size initial_page_table correctly
  x86/doublefault/32: Fix stack canaries in the double fault handler
  x86/xen/32: Simplify ring check in xen_iret_crit_fixup()
  x86/xen/32: Make xen_iret_crit_fixup() independent of frame layout
  x86/stackframe/32: Repair 32-bit Xen PV
 2019-11-26 10:12:28 -08:00
Linus Torvalds
53a07a148f Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 PTI updates from Ingo Molnar:
 "Fix reporting bugs of the MDS and TAA mitigation status, if one or
  both are set via a boot option.

  No change to mitigation behavior intended"

* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/speculation: Fix redundant MDS mitigation message
  x86/speculation: Fix incorrect MDS/TAA mitigation status
 2019-11-26 10:11:01 -08:00
John Rutherford
fd567ac20c tipc: fix link name length check 
In commit 4f07b80c97 ("tipc: check msg->req data len in
tipc_nl_compat_bearer_disable") the same patch code was copied into
routines: tipc_nl_compat_bearer_disable(),
tipc_nl_compat_link_stat_dump() and tipc_nl_compat_link_reset_stats().
The two link routine occurrences should have been modified to check
the maximum link name length and not bearer name length.

Fixes: 4f07b80c97 ("tipc: check msg->reg data len in tipc_nl_compat_bearer_disable")
Signed-off-by: John Rutherford <john.rutherford@dektech.com.au>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-11-26 10:03:12 -08:00