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Linus Torvalds
d8924c0d76 Device properties framework updates for 4.21-rc1 
- Introduce "software nodes", analogous to the DT and ACPI firmware
    nodes except that they can be created by kernel code, in order to
    complement fwnodes representing real firmware nodes when they are
    incomplete (for example missing device properties) and to supply
    the primary fwnode when the firmware lacks hardware description
    for a device completely, and replace the "property_set" struct
    fwnode_handle type with software nodes (Heikki Krogerus).
 
  - Clean up the just introduced software nodes support and fix a commet
    in the graph-handling code (Colin Ian King, Marco Felsch).
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Merge tag 'devprop-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull device properties framework updates from Rafael Wysocki:
 "This introduces 'software nodes' that are analogous to the DT and ACPI
  firmware nodes except that they can be created by drivers themselves
  and do a couple of assorted cleanups.

  Specifics:

   - Introduce "software nodes", analogous to the DT and ACPI firmware
     nodes except that they can be created by kernel code, in order to
     complement fwnodes representing real firmware nodes when they are
     incomplete (for example missing device properties) and to supply
     the primary fwnode when the firmware lacks hardware description for
     a device completely, and replace the "property_set" struct
     fwnode_handle type with software nodes (Heikki Krogerus).

   - Clean up the just introduced software nodes support and fix a
     commet in the graph-handling code (Colin Ian King, Marco Felsch)"

* tag 'devprop-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  device property: fix fwnode_graph_get_next_endpoint() documentation
  drivers: base: swnode: remove need for a temporary string for the node name
  device property: Remove struct property_set
  device property: Move device_add_properties() to swnode.c
  drivers: base: Introducing software nodes to the firmware node framework
  ACPI / glue: Add acpi_platform_notify() function
  drivers core: Prepare support for multiple platform notifications
  driver core: platform: Remove duplicated device_remove_properties() call
 2018-12-25 15:01:46 -08:00
Linus Torvalds
1fbb2dc6f0 This round is dominated by NXP's i.MX clk drivers. We gained support for two or 
three i.MX SoCs in here and that mostly means a lot of driver code and data.
 Beyond that platform, there are some new Mediatek, Amlogic, and Qualcomm clk
 drivers added in here, and then we get to the long tail of driver updates and
 non-critical fixes all around, including code for vendors such as Renesas,
 Rockchip, Nvidia, and Allwinner. Overall, the driver updates look normal.
 
 Beyond the usual driver updates we have an update to make registering OF based
 clk providers a little simpler when they're devices created as a child of a
 device backed by a node in DT. Drivers don't have to jump through hoops to
 unregister the provider upon driver removal anymore because the API does the
 right thing and uses the parent device DT node.
 
 Core:
  - Make devm_of_clk_add_hw_provider() use parent dt node if necessary
  - Various SPDX taggings
  - Mark clk_ops const when possible
 
 New Drivers:
  - NXP i.MX7ULP SoC clock support
  - NXP i.MX8QXP SoC clock support
  - NXP i.MX8MQ SoC clock support
  - NXP QorIQ T1023 SoC support
  - Qualcomm SDM845 audio subsystem clks
  - Qualcomm SDM845 GPU clck controllers
  - Qualcomm QCS404 RPM clk support
  - Mediatek MT7629 SoC clk controllers
  - Allwinner F1c100s SoC clocks
  - Allwinner H6 display engine clocks
  - Amlogic GX video clocks
  - Support for Amlogic meson8b CPU frequency scaling
  - Amlogic Meson8b CPU post-divider clocks
 
 Updates:
  - Proper suspend/resume on VersaClock5
  - Shrink code some with DEFINE_SHOW_ATTRIBUTE()
  - Register fixes for Rockchip rk3188 and rk3328
  - One new critical clock for Rockchip rk3188 and a fixed clock id (double used number)
  - New clock id for Rockchip rk3328
  - Amlogic Meson8/Meson8b video clock support
  - Amlogic got a clk-input helper and used it for the axg-audio clock driver
  - Sigma Delta modulation for the Allwinner A33 audio clocks
  - Support for CPEX (timer) clocks on various Renesas R-Car Gen3 and RZ/G2 SoCs
  - Support for SDHI HS400 clocks on early revisions of Renesas R-Car H3 and M3-W
  - Support for SDHI and USB clocks on Renesas RZ/A2
  - Support for RPC (SPI Multi I/O Bus Controller) clocks on Renesas R-Car V3M
  - Qualcomm MSM8998 GCC driver improvements (resets, drop unused clks, etc.)
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This round is dominated by NXP's i.MX clk drivers. We gained support
  for two or three i.MX SoCs in here and that mostly means a lot of
  driver code and data.

  Beyond that platform, there are some new Mediatek, Amlogic, and
  Qualcomm clk drivers added in here, and then we get to the long tail
  of driver updates and non-critical fixes all around, including code
  for vendors such as Renesas, Rockchip, Nvidia, and Allwinner. Overall,
  the driver updates look normal.

  Apart from the usual driver updates we have an update to make
  registering OF based clk providers a little simpler when they're
  devices created as a child of a device backed by a node in DT. Drivers
  don't have to jump through hoops to unregister the provider upon
  driver removal anymore because the API does the right thing and uses
  the parent device DT node.

  Summary:

  Core:
   - Make devm_of_clk_add_hw_provider() use parent dt node if necessary
   - Various SPDX taggings
   - Mark clk_ops const when possible

  New Drivers:
   - NXP i.MX7ULP SoC clock support
   - NXP i.MX8QXP SoC clock support
   - NXP i.MX8MQ SoC clock support
   - NXP QorIQ T1023 SoC support
   - Qualcomm SDM845 audio subsystem clks
   - Qualcomm SDM845 GPU clck controllers
   - Qualcomm QCS404 RPM clk support
   - Mediatek MT7629 SoC clk controllers
   - Allwinner F1c100s SoC clocks
   - Allwinner H6 display engine clocks
   - Amlogic GX video clocks
   - Support for Amlogic meson8b CPU frequency scaling
   - Amlogic Meson8b CPU post-divider clocks

  Updates:
   - Proper suspend/resume on VersaClock5
   - Shrink code some with DEFINE_SHOW_ATTRIBUTE()
   - Register fixes for Rockchip rk3188 and rk3328
   - One new critical clock for Rockchip rk3188 and a fixed clock id
     (double used number)
   - New clock id for Rockchip rk3328
   - Amlogic Meson8/Meson8b video clock support
   - Amlogic got a clk-input helper and used it for the axg-audio clock
     driver
   - Sigma Delta modulation for the Allwinner A33 audio clocks
   - Support for CPEX (timer) clocks on various Renesas R-Car Gen3 and
     RZ/G2 SoCs
   - Support for SDHI HS400 clocks on early revisions of Renesas R-Car
     H3 and M3-W
   - Support for SDHI and USB clocks on Renesas RZ/A2
   - Support for RPC (SPI Multi I/O Bus Controller) clocks on Renesas
     R-Car V3M
   - Qualcomm MSM8998 GCC driver improvements (resets, drop unused clks,
     etc)"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (172 commits)
  clk: imx: imx7ulp: add arm hsrun mode clocks support
  dt-bindings: clock: imx7ulp: add HSRUN mode related clocks
  clk: Use of_node_name_eq for node name comparisons
  clk: vc5: Add suspend/resume support
  clk: qcom: Drop unused 8998 clock
  clk: qcom: Leave mmss noc on for 8998
  clk: tegra: Return the exact clock rate from clk_round_rate
  clk: tegra30: Use Tegra CPU powergate helper function
  soc/tegra: pmc: Drop SMP dependency from CPU APIs
  clk: tegra: Fix maximum audio sync clock for Tegra124/210
  clk: tegra: get rid of duplicate defines
  clk: imx: add imx8qxp lpcg driver
  clk: imx: add lpcg clock support
  clk: imx: add imx8qxp clk driver
  clk: imx: Make the i.MX8MQ CCM clock driver CLK_IMX8MQ dependant
  clk: imx: add scu clock common part
  clk: imx: add configuration option for mmio clks
  dt-bindings: clock: add imx8qxp lpcg clock binding
  dt-bindings: clock: imx8qxp: add SCU clock IDs
  clk: qcom: Add missing msm8998 resets
  ...
 2018-12-25 14:57:37 -08:00
Linus Torvalds
4e4390ad06 LEDs for 4.21-rc1 
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Merge tag 'leds-for-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds

Pull LED updates from Jacek Anaszewski:
 "There are several few-liners, where most of them are fixes and
  improvments. One thing standing out is ground preparation for
  inititializing trigger parameters via Device Tree.

  We introduce LED_INIT_DEFAULT_TRIGGER flag for that purpose and set it
  when default trigger is matched. It indicates that trigger should
  parse DT properties to retrieve the initialization data when set as
  default one"

* tag 'leds-for-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
  led: triggers: Initialize LED_INIT_DEFAULT_TRIGGER if trigger is brought after class
  led: triggers: Add LED_INIT_DEFAULT_TRIGGER flag
  led: triggers: Break the for loop after default trigger is found
  leds: pwm: Use OF variant of LED registering function
  leds: pwm: Simplify with resource-managed devm_led_classdev_register()
  leds: gpio: Drop unneeded manual of_node assignment
  leds: 88pm860x: Use of_node_name_eq for node name comparisons
  leds: powernv: add of_node_put()
 2018-12-25 14:52:50 -08:00
Linus Torvalds
b1669432b3 regmap: Updates for v4.21 
This has been a busy release for the regmap-irq code, there's several
 new features been added, including an API cleanup for how we specify
 types that affected one existing driver (gpio-max77620):
 
  - Support for hardware that flags rising and falling edges on separate
    status bits from Bartosz Golaszewski.
  - Support for explicitly clearing interrupts before unmasking from
    Bartosz Golaszewski.
  - Support for level triggered IRQs from Matti Vaittinen.
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Merge tag 'regmap-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "This has been a busy release for the regmap-irq code, there's several
  new features been added, including an API cleanup for how we specify
  types that affected one existing driver (gpio-max77620):

   - Support for hardware that flags rising and falling edges on
     separate status bits from Bartosz Golaszewski.

   - Support for explicitly clearing interrupts before unmasking from
     Bartosz Golaszewski.

   - Support for level triggered IRQs from Matti Vaittinen"

* tag 'regmap-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: irq: add an option to clear status registers on unmask
  regmap: regmap-irq/gpio-max77620: add level-irq support
  regmap: regmap-irq: Remove default irq type setting from core
  regmap: debugfs: convert to DEFINE_SHOW_ATTRIBUTE
  regmap: rbtree: convert to DEFINE_SHOW_ATTRIBUTE
  regmap: irq: handle HW using separate rising/falling edge interrupts
  regmap: add a new macro:REGMAP_IRQ_REG_LINE(_id, _reg_bits)
 2018-12-25 14:48:06 -08:00
Linus Torvalds
0051db8218 spi: Updates for v4.21 
The main thing this release has been a lot of work on the integration
 with SPI NOR flashes, there's been some specific support for a while for
 controller features designed to make them perform better but it's not
 worked out as well as hoped so the interface has been redesigned in a
 way that will hopefully do better - it's already been adopted by a
 number of additional controllers so things are looking good.  Otherwise
 most of the work has been driver specific:
 
  - Support for better integration with NOR flashes from Boris Brezillon
    and Yogesh Narayan Gaur plus usage of it in several drivers.
  - A big cleanup of the Rockchip driver from Emil Renner Berthing.
  - Lots of performance improvements for bcm2835 from Lukas Wunner.
  - Slave mode support for pxa2xx from Lubomir Rintel.
  - Support for Macronix MXIC, Mediatek MT7629 and MT8183, NPCM PSPI,
    and Renesas r8a77470.
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Merge tag 'spi-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "The main thing this release has been a lot of work on the integration
  with SPI NOR flashes, there's been some specific support for a while
  for controller features designed to make them perform better but it's
  not worked out as well as hoped so the interface has been redesigned
  in a way that will hopefully do better - it's already been adopted by
  a number of additional controllers so things are looking good.

  Otherwise most of the work has been driver specific:

   - Support for better integration with NOR flashes from Boris
     Brezillon and Yogesh Narayan Gaur plus usage of it in several
     drivers.

   - A big cleanup of the Rockchip driver from Emil Renner Berthing.

   - Lots of performance improvements for bcm2835 from Lukas Wunner.

   - Slave mode support for pxa2xx from Lubomir Rintel.

   - Support for Macronix MXIC, Mediatek MT7629 and MT8183, NPCM PSPI,
     and Renesas r8a77470"

* tag 'spi-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (90 commits)
  spi: sh-msiof: Reduce the number of times write to and perform the transmission from FIFO
  spi: sh-msiof: Add r8a774c0 support
  doc: lpspi: Document DT bindings for LPSPI slave mode
  spi: lpspi: Let watermark change with send data length
  spi: lpspi: Add slave mode support
  spi: lpspi: Replace all "master" with "controller"
  spi: imx: drop useless member speed_hz from driver data struct
  spi: imx: rename config callback and add useful parameters
  spi: imx: style fixes
  spi: imx: mx51-ecspi: Move some initialisation to prepare_message hook.
  spi: imx: add a device specific prepare_message callback
  mtd: atmel-quadspi: disallow building on ebsa110
  spi: Update NPCM PSPI controller documentation
  spi: npcm: Modify pspi send function
  spi: Use of_node_name_eq for node name comparisons
  spi: dw-mmio: add ACPI support
  spi: bcm2835: Synchronize with callback on DMA termination
  spi: bcm2835: Speed up FIFO access if fill level is known
  spi: bcm2835: Polish transfer of DMA prologue
  spi: spi-mem: add support for octal mode I/O data transfer
  ...
 2018-12-25 14:43:54 -08:00
Linus Torvalds
79f20778fb regulator: Updates for v4.20 
This has been a very busy release for the core, some fixes, one large new
 feature and a big bit of refactoring to update the GPIO API:
 
  - Support for coupled regulators from Dmitry Osipenko based on a prior
    attempt by Maciej Purski, allowing us to handle situations where the
    voltages on two regulators can't be too far apart from each other.
  - Conversion of the GPIO support in both drivers and the core to use
    GPIO descriptors rather than numbers, part of the overall project to
    remove GPIO numbers.
  - Support for standby mode suspend states from Andrei Stefanescu.
  - New drivers for Allwinner AXP209, Cirrus Logic Lochnagar and
    Microchip MPC16502.
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Merge tag 'regulator-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "This has been a very busy release for the core, some fixes, one large
  new feature and a big bit of refactoring to update the GPIO API:

   - Support for coupled regulators from Dmitry Osipenko based on a
     prior attempt by Maciej Purski, allowing us to handle situations
     where the voltages on two regulators can't be too far apart from
     each other.

   - Conversion of the GPIO support in both drivers and the core to use
     GPIO descriptors rather than numbers, part of the overall project
     to remove GPIO numbers.

   - Support for standby mode suspend states from Andrei Stefanescu.

   - New drivers for Allwinner AXP209, Cirrus Logic Lochnagar and
     Microchip MPC16502"

* tag 'regulator-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (90 commits)
  regulator: tps65910: fix a missing check of return value
  regulator: mcp16502: Select REGMAP_I2C to fix build error
  regulator: convert to DEFINE_SHOW_ATTRIBUTE
  regulator: mcp16502: Fix missing n_voltages setting
  regulator: mcp16502: Use #ifdef CONFIG_PM_SLEEP around mcp16502_suspend/resume_noirq
  regulator: mcp16502: code cleanup
  regulator: act8945a-regulator: make symbol act8945a_pm static
  drivers/regulator: fix a missing check of return value
  regulator: act8945a-regulator: fix 'defined but not used' compiler warning
  regulator: axp20x: fix set_ramp_delay for AXP209/dcdc2
  regulator: mcp16502: add support for suspend
  mfd: axp20x: use explicit bit defines
  mfd: axp20x: Clean up included headers
  regulator: dts: enable soft-start and ramp delay for the OLinuXino Lime2
  dt-bindings: mfd: axp20x: Add software based soft_start for AXP209 LDO3
  regulator: axp20x: add software based soft_start for AXP209 LDO3
  dt-bindings: mfd: axp20x: add support for regulator-ramp-delay for AXP209
  regulator: axp20x: add support for set_ramp_delay for AXP209
  mfd: axp20x: name voltage ramping define properly
  regulator: mcp16502: add regulator driver for MCP16502
  ...
 2018-12-25 14:38:31 -08:00
Linus Torvalds
d923fd6dc1 pwm: Changes for v4.21-rc1 
Not a lot going on this cycle. There's some more cleanup going on and
 new driver support that was not quite ready in time for v4.21-rc1, but
 here are a few fixes and improvements that are good to go. The Kona PWM
 driver can now be built on the Cygnus architecture and the i.MX driver
 gained support for hardware readback. Some small fixes are provided for
 the clks711x and lpc18xx-sct drivers. Finally, to round things off some
 drivers are switched to SPDX license identifiers.
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Merge tag 'pwm/for-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "Not a lot going on this cycle.

  There's some more cleanup going on and new driver support that was not
  quite ready in time for v4.21-rc1, but here are a few fixes and
  improvements that are good to go.

  The Kona PWM driver can now be built on the Cygnus architecture and
  the i.MX driver gained support for hardware readback. Some small fixes
  are provided for the clks711x and lpc18xx-sct drivers.

  Finally, to round things off some drivers are switched to SPDX license
  identifiers"

* tag 'pwm/for-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  dt-bindings: pwm: rcar: Add r8a774c0 support
  pwm: imx: Add ipg clock operation
  pwm: clps711x: Switch to SPDX identifier
  pwm: clps711x: Fix period calculation
  pwm: bcm2835: Switch to SPDX identifier
  pwm: Enable Kona PWM to be built for the Cygnus architecture
  pwm: Drop legacy wrapper for changing polarity
  pwm: imx: Implement get_state() function for hardware readout
  pwm: imx: Use bitops and bitfield macros to define register values
  pwm: imx: Sort include files
  pwm: lpc18xx-sct: Don't reconfigure PWM in .request and .free
 2018-12-25 14:34:48 -08:00
Linus Torvalds
e6d1315006 ACPI updates for 4.21-rc1 
- Update the ACPICA code in the kernel to the 20181213 upstream
    revision including:
    * New Windows _OSI strings (Bob Moore, Jung-uk Kim).
    * Buffers-to-string conversions update (Bob Moore).
    * Removal of support for expressions in package elements (Bob
      Moore).
    * New option to display method/object evaluation in debug output
      (Bob Moore).
    * Compiler improvements (Bob Moore, Erik Schmauss).
    * Minor debugger fix (Erik Schmauss).
    * Disassembler improvement (Erik Schmauss).
    * Assorted cleanups (Bob Moore, Colin Ian King, Erik Schmauss).
 
  - Add support for a new OEM _OSI string to indicate special handling
    of secondary graphics adapters on some systems (Alex Hung).
 
  - Make it possible to build the ACPI subystem without PCI support
    (Sinan Kaya).
 
  - Make the SPCR table handling regard baud rate 0 in accordance with
    the specification of it and make the DSDT override code support
    DSDT code names generated by recent ACPICA (Andy Shevchenko, Wang
    Dongsheng, Nathan Chancellor).
 
  - Add clock frequency for Hisilicon Hip08 SPI controller to the ACPI
    driver for AMD SoCs (APD) (Jay Fang).
 
  - Fix the PM handling during device init in the ACPI driver for
    Intel SoCs (LPSS) (Hans de Goede).
 
  - Avoid double panic()s by clearing the APEI GHES block_status
    before panic() (Lenny Szubowicz).
 
  - Clean up a function invocation in the ACPI core and get rid of
    some code duplication by using the DEFINE_SHOW_ATTRIBUTE macro
    in the APEI support code (Alexey Dobriyan, Yangtao Li).
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Merge tag 'acpi-4.21-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 the 20181213 upstream
  revision, make it possible to build the ACPI subsystem without PCI
  support, and a new OEM _OSI string, add a new device support to the
  ACPI driver for AMD SoCs and fix PM handling in the ACPI driver for
  Intel SoCs, fix the SPCR table handling and do some assorted fixes and
  cleanups.

  Specifics:

   - Update the ACPICA code in the kernel to the 20181213 upstream
     revision including:
      * New Windows _OSI strings (Bob Moore, Jung-uk Kim).
      * Buffers-to-string conversions update (Bob Moore).
      * Removal of support for expressions in package elements (Bob
        Moore).
      * New option to display method/object evaluation in debug output
        (Bob Moore).
      * Compiler improvements (Bob Moore, Erik Schmauss).
      * Minor debugger fix (Erik Schmauss).
      * Disassembler improvement (Erik Schmauss).
      * Assorted cleanups (Bob Moore, Colin Ian King, Erik Schmauss).

   - Add support for a new OEM _OSI string to indicate special handling
     of secondary graphics adapters on some systems (Alex Hung).

   - Make it possible to build the ACPI subystem without PCI support
     (Sinan Kaya).

   - Make the SPCR table handling regard baud rate 0 in accordance with
     the specification of it and make the DSDT override code support
     DSDT code names generated by recent ACPICA (Andy Shevchenko, Wang
     Dongsheng, Nathan Chancellor).

   - Add clock frequency for Hisilicon Hip08 SPI controller to the ACPI
     driver for AMD SoCs (APD) (Jay Fang).

   - Fix the PM handling during device init in the ACPI driver for Intel
     SoCs (LPSS) (Hans de Goede).

   - Avoid double panic()s by clearing the APEI GHES block_status before
     panic() (Lenny Szubowicz).

   - Clean up a function invocation in the ACPI core and get rid of some
     code duplication by using the DEFINE_SHOW_ATTRIBUTE macro in the
     APEI support code (Alexey Dobriyan, Yangtao Li)"

* tag 'acpi-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (31 commits)
  ACPI / tables: Add an ifdef around amlcode and dsdt_amlcode
  ACPI/APEI: Clear GHES block_status before panic()
  ACPI: Make PCI slot detection driver depend on PCI
  ACPI/IORT: Stub out ACS functions when CONFIG_PCI is not set
  arm64: select ACPI PCI code only when both features are enabled
  PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set
  ACPICA: Remove PCI bits from ACPICA when CONFIG_PCI is unset
  ACPI: Allow CONFIG_PCI to be unset for reboot
  ACPI: Move PCI reset to a separate function
  ACPI / OSI: Add OEM _OSI string to enable dGPU direct output
  ACPI / tables: add DSDT AmlCode new declaration name support
  ACPICA: Update version to 20181213
  ACPICA: change coding style to match ACPICA, no functional change
  ACPICA: Debug output: Add option to display method/object evaluation
  ACPICA: disassembler: disassemble OEMx tables as AML
  ACPICA: Add "Windows 2018.2" string in the _OSI support
  ACPICA: Expressions in package elements are not supported
  ACPICA: Update buffer-to-string conversions
  ACPICA: add comments, no functional change
  ACPICA: Remove defines that use deprecated flag
  ...
 2018-12-25 14:21:18 -08:00
Linus Torvalds
1e2af254ef Power management updates for 4.21-rc1 
- Add sysadmin documentation for cpuidle (Rafael Wysocki).
 
  - Make it possible to specify a cpuidle governor from kernel
    command line, add new cpuidle state sysfs attributes for
    governor evaluation, and improve the "polling" idle state
    handling (Rafael Wysocki).
 
  - Fix the handling of the "required-opps" DT property in the
    operating performance points (OPP) framework, improve the
    integration of it with the generic power domains (genpd)
    framework, improve the handling of performance states in
    them and clean up the idle states vs performance states
    separation in genpd (Viresh Kumar, Ulf Hansson).
 
  - Add a cpufreq driver called "qcom-hw" for Qualcomm SoCs using
    a hardware engine to control CPU frequency transitions along
    with DT bindings for it (Taniya Das).
 
  - Fix an intel_pstate driver issue related to CPU offline and
    update the documentation of it (Srinivas Pandruvada).
 
  - Clean up the imx6q cpufreq driver (Anson Huang).
 
  - Add SPDX license IDs to cpufreq schedutil governor files (Daniel
    Lezcano).
 
  - Switch over the runtime PM framework to using high-res timers
    for device autosuspend to allow the control of it to be more
    precise (Vincent Guittot).
 
  - Disable non-wakeup ACPI GPEs during suspend-to-idle so that they
    don't prevent the system from reaching the target low-power state
    and simplify the suspend-to-idle handling on ACPI platforms
    without full Low-Power S0 Idle (LPS0) support (Rafael Wysocki).
 
  - Add system-wide suspend and resume support to the devfreq
    framework (Lukasz Luba).
 
  - Clean up the SmartReflex adaptive voltage scaling (AVS) driver and
    add an SPDX license ID to it (Nishanth Menon, Uwe Kleine-König,
    Thomas Meyer).
 
  - Get rid of code duplication by using the DEFINE_SHOW_ATTRIBUTE
    macro in some places, fix some DT node refcount leaks, and do
    some other janitorial cleanups (Yangtao Li).
 
  - Update the cpupower, intel_pstate_tracer and turbosat utilities
    (Abhishek Goel, Doug Smythies, Len Brown).
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Merge tag 'pm-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These add sysadmin documentation for cpuidle, extend the cpuidle
  subsystem somewhat, improve the handling of performance states in the
  generic power domains (genpd) and operating performance points (OPP)
  frameworks, add a new cpufreq driver for Qualcomm SoCs, update some
  other cpufreq drivers, switch over the runtime PM framework to using
  high-res timers for device autosuspend, fix a problem with
  suspend-to-idle on ACPI-based platforms, add system-wide suspend and
  resume handling to the devfreq framework, do some janitorial cleanups
  all over and update some utilities.

  Specifics:

   - Add sysadmin documentation for cpuidle (Rafael Wysocki).

   - Make it possible to specify a cpuidle governor from kernel command
     line, add new cpuidle state sysfs attributes for governor
     evaluation, and improve the "polling" idle state handling (Rafael
     Wysocki).

   - Fix the handling of the "required-opps" DT property in the
     operating performance points (OPP) framework, improve the
     integration of it with the generic power domains (genpd) framework,
     improve the handling of performance states in them and clean up the
     idle states vs performance states separation in genpd (Viresh
     Kumar, Ulf Hansson).

   - Add a cpufreq driver called "qcom-hw" for Qualcomm SoCs using a
     hardware engine to control CPU frequency transitions along with DT
     bindings for it (Taniya Das).

   - Fix an intel_pstate driver issue related to CPU offline and update
     the documentation of it (Srinivas Pandruvada).

   - Clean up the imx6q cpufreq driver (Anson Huang).

   - Add SPDX license IDs to cpufreq schedutil governor files (Daniel
     Lezcano).

   - Switch over the runtime PM framework to using high-res timers for
     device autosuspend to allow the control of it to be more precise
     (Vincent Guittot).

   - Disable non-wakeup ACPI GPEs during suspend-to-idle so that they
     don't prevent the system from reaching the target low-power state
     and simplify the suspend-to-idle handling on ACPI platforms without
     full Low-Power S0 Idle (LPS0) support (Rafael Wysocki).

   - Add system-wide suspend and resume support to the devfreq framework
     (Lukasz Luba).

   - Clean up the SmartReflex adaptive voltage scaling (AVS) driver and
     add an SPDX license ID to it (Nishanth Menon, Uwe Kleine-König,
     Thomas Meyer).

   - Get rid of code duplication by using the DEFINE_SHOW_ATTRIBUTE
     macro in some places, fix some DT node refcount leaks, and do some
     other janitorial cleanups (Yangtao Li).

   - Update the cpupower, intel_pstate_tracer and turbosat utilities
     (Abhishek Goel, Doug Smythies, Len Brown)"

* tag 'pm-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (54 commits)
  PM / Domains: remove define_genpd_open_function() and define_genpd_debugfs_fops()
  PM-runtime: Switch autosuspend over to using hrtimers
  cpufreq: qcom-hw: Add support for QCOM cpufreq HW driver
  dt-bindings: cpufreq: Introduce QCOM cpufreq firmware bindings
  ACPI: PM: Loop in full LPS0 mode only
  ACPI: EC / PM: Disable non-wakeup GPEs for suspend-to-idle
  tools/power/x86/intel_pstate_tracer: Fix non root execution for post processing a trace file
  tools/power turbostat: consolidate duplicate model numbers
  tools/power turbostat: fix goldmont C-state limit decoding
  PM / Domains: Propagate performance state updates
  PM / Domains: Factorize dev_pm_genpd_set_performance_state()
  PM / Domains: Save OPP table pointer in genpd
  OPP: Don't return 0 on error from of_get_required_opp_performance_state()
  OPP: Add dev_pm_opp_xlate_performance_state() helper
  OPP: Improve _find_table_of_opp_np()
  PM / Domains: Make genpd performance states orthogonal to the idlestates
  PM / sleep: convert to DEFINE_SHOW_ATTRIBUTE
  cpuidle: Add 'above' and 'below' idle state metrics
  PM / AVS: SmartReflex: Switch to SPDX Licence ID
  PM / AVS: SmartReflex: NULL check before some freeing functions is not needed
  ...
 2018-12-25 13:47:41 -08:00
Linus Torvalds
b271b2127e - Support for ZynqMP DDR controller support to synopsys_edac along 
with a driver cleanup and generalization for the addition of support for
 the new IP. (Manish Narani)
 
 - Removal of the /sys/bus/edac devices hierarchy. This enabled us to get
 rid of the silly memory controllers maximum number notion. (Tony Luck
 and Borislav Petkov)
 
 - skx_edac improvements and fixes. (Qiuxu Zhuo and Tony Luck)
 
 - The usual garden variety of small cleanups and fixes.
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Merge tag 'edac_for_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:

 - Support for ZynqMP DDR controller support to synopsys_edac along with
   a driver cleanup and generalization for the addition of support for
   the new IP. (Manish Narani)

 - Removal of the /sys/bus/edac devices hierarchy. This enabled us to
   get rid of the silly memory controllers maximum number notion. (Tony
   Luck and Borislav Petkov)

 - skx_edac improvements and fixes. (Qiuxu Zhuo and Tony Luck)

 - The usual garden variety of small cleanups and fixes.

* tag 'edac_for_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (25 commits)
  EDAC, fsl_ddr: Add LS1021A to the list of supported hardware
  EDAC, i5000: Remove set but not used local variables
  MAINTAINERS, EDAC: Drop bouncing email
  EDAC, i82975x: Fix spelling mistake "reserverd" -> "reserved"
  EDAC, fsl: Move error injection under CONFIG_EDAC_DEBUG
  EDAC, skx: Let EDAC core show the decoded result for debugfs
  EDAC, skx: Move debugfs node under EDAC's hierarchy
  EDAC, skx: Prepend hex formatting with '0x'
  EDAC, skx: Fix function calling order in skx_exit()
  EDAC: Drop per-memory controller buses
  EDAC: Don't add devices under /sys/bus/edac
  EDAC: Fix indentation issues in several EDAC drivers
  EDAC, skx: Fix randconfig builds in a better way
  EDAC, i82975x: Remove set but not used variable dtype
  EDAC, qcom_edac: Remove irq_handled local variable
  EDAC, synopsys: Add Error Injection support for ZynqMP DDR controller
  EDAC, synopsys: Add ECC support for ZynqMP DDR controller
  EDAC, synopsys: Add macro defines for ZynqMP DDRC
  dt: bindings: Document ZynqMP DDRC in Synopsys documentation
  EDAC, synopsys: Add error handling for the of_device_get_match_data() result
  ...
 2018-12-25 13:28:00 -08:00
Linus Torvalds
8e61e7b5c4 sound updates for 4.21 
There are no intensive changes in both ALSA and ASoC core parts while
 rather most of changes are a bunch of driver fixes and updates.
 A large diff pattern appears in ASoC TI part which now merges both
 OMAP and DaVinci stuff, but the rest spreads allover the places.
 
 Note that this pull request includes also some updates for LED trigger
 and platform drivers for mute LEDs, appearing in the diffstat as well.
 
 Some highlights:
 
 ASoC:
 - Preparatory work for merging the audio-graph and audio-graph-scu
   cards
 - A merge of TI OMAP and DaVinci directories, as both product lines
   get merged together.  Also including a few architecture changes as
   well.
 - Major cleanups of the Maxim MAX9867 driver
 - Small fixes for tablets & co with Intel BYT/CHT chips
 - Lots of rsnd updates as usual
 - Support for Asahi Kaesi AKM4118, AMD ACP3x, Intel platforms with
   RT5660, Meson AXG S/PDIF inputs, several Qualcomm IPs and Xilinx I2S
   controllers
 
 HD-audio:
 - Introduce audio-mute LED trigger for replacing the former hackish
   dynamic binding
 - Huawei WMI hotkey and mute LED support
 - Refactoring of PM code and display power controls
 - Headset button support in the generic jack code
 - A few updates for Tegra
 - Fixups for HP EliteBook and ASUS UX391UA
 - Lots of updates for Intel ASoC HD-audio, including the improved DSP
   detection and the fallback binding from ASoC SST to legacy HD-audio
   controller drivers
 
 Others:
 - Updates for FireWire TASCAM and Fireface devices, some other fixes
 - A few potential Spectre v1 fixes that are all trivial
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Merge tag 'sound-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "There are no intensive changes in both ALSA and ASoC core parts while
  rather most of changes are a bunch of driver fixes and updates. A
  large diff pattern appears in ASoC TI part which now merges both OMAP
  and DaVinci stuff, but the rest spreads allover the places.

  Note that this pull request includes also some updates for LED trigger
  and platform drivers for mute LEDs, appearing in the diffstat as well.

  Some highlights:

  ASoC:
   - Preparatory work for merging the audio-graph and audio-graph-scu
     cards
   - A merge of TI OMAP and DaVinci directories, as both product lines
     get merged together. Also including a few architecture changes as
     well.
   - Major cleanups of the Maxim MAX9867 driver
   - Small fixes for tablets & co with Intel BYT/CHT chips
   - Lots of rsnd updates as usual
   - Support for Asahi Kaesi AKM4118, AMD ACP3x, Intel platforms with
     RT5660, Meson AXG S/PDIF inputs, several Qualcomm IPs and Xilinx
     I2S controllers

  HD-audio:
   - Introduce audio-mute LED trigger for replacing the former hackish
     dynamic binding
   - Huawei WMI hotkey and mute LED support
   - Refactoring of PM code and display power controls
   - Headset button support in the generic jack code
   - A few updates for Tegra
   - Fixups for HP EliteBook and ASUS UX391UA
   - Lots of updates for Intel ASoC HD-audio, including the improved DSP
     detection and the fallback binding from ASoC SST to legacy HD-audio
     controller drivers

  Others:
   - Updates for FireWire TASCAM and Fireface devices, some other fixes
   - A few potential Spectre v1 fixes that are all trivial"

* tag 'sound-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (280 commits)
  ALSA: HD-Audio: SKL+: force HDaudio legacy or SKL+ driver selection
  ALSA: HD-Audio: SKL+: abort probe if DSP is present and Skylake driver selected
  ALSA: HDA: export process_unsol_events()
  ALSA: hda/realtek: Enable audio jacks of ASUS UX391UA with ALC294
  ALSA: bebob: fix model-id of unit for Apogee Ensemble
  ALSA: emu10k1: Fix potential Spectre v1 vulnerabilities
  ALSA: rme9652: Fix potential Spectre v1 vulnerability
  ASoC: ti: Kconfig: Remove the deprecated options
  ARM: davinci_all_defconfig: Update the audio options
  ARM: omap1_defconfig: Do not select ASoC by default
  ARM: omap2plus_defconfig: Update the audio options
  ARM: davinci: dm365-evm: Update for the new ASoC Kcofnig options
  ARM: OMAP2: Update for new MCBSP Kconfig option
  ARM: OMAP1: Makefile: Update for new MCBSP Kconfig option
  MAINTAINERS: Add entry for sound/soc/ti and update the OMAP audio support
  ASoC: ti: Merge davinci and omap directories
  ALSA: hda: add mute LED support for HP EliteBook 840 G4
  ALSA: fireface: code refactoring to handle model-specific registers
  ALSA: fireface: add support for packet streaming on Fireface 800
  ALSA: fireface: allocate isochronous resources in mode-specific implementation
  ...
 2018-12-25 13:19:10 -08:00
Linus Torvalds
996680d461 media fixes for v4.20-rc8 
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Merge tag 'media/v4.20-7' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull more media updates from Mauro Carvalho Chehab:
 "The Intel IPU3 camera driver"

* tag 'media/v4.20-7' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (23 commits)
  media: staging/ipu3-imgu: Add MAINTAINERS entry
  media: staging/ipu3-imgu: Address documentation comments
  media: v4l: Add Intel IPU3 meta buffer formats
  media: doc-rst: Add Intel IPU3 documentation
  media: ipu3-imgu: Fix firmware binary location
  media: ipu3-imgu: Fix compiler warnings
  media: staging/intel-ipu3: Add dual pipe support
  media: staging/intel-ipu3: Add Intel IPU3 meta data uAPI
  media: staging/intel-ipu3: Add imgu top level pci device driver
  media: staging/intel-ipu3: Add v4l2 driver based on media framework
  media: staging/intel-ipu3: Add css pipeline programming
  media: staging/intel-ipu3: css: Initialize css hardware
  media: staging/intel-ipu3: css: Compute and program ccs
  media: staging/intel-ipu3: css: Add static settings for image pipeline
  media: staging/intel-ipu3: css: Add support for firmware management
  media: staging/intel-ipu3: css: Add dma buff pool utility functions
  media: staging/intel-ipu3: Implement DMA mapping functions
  media: staging/intel-ipu3: mmu: Implement driver
  media: staging/intel-ipu3: abi: Add structs
  media: staging/intel-ipu3: abi: Add register definitions and enum
  ...
 2018-12-25 13:11:30 -08:00
Linus Torvalds
5813540b58 media fixes for v4.20-rc8 
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Merge tag 'media/v4.20-6' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 "First set of media patches contains:

   - Three new platform drivers: aspeed-video seco-sed and sun5i-csi;

   - One new sensor driver: imx214;

   - Support for Xbox DVD Movie Playback kit remote controller;

   - Removal of the legacy friio driver. The functionalities were ported
     to another driver, already merged;

   - New staging driver: Rockchip VPU;

   - Added license text or SPDX tags to all media documentation files;

   - Usual set of cleanup, fixes and enhancements"

* tag 'media/v4.20-6' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (263 commits)
  media: cx23885: only reset DMA on problematic CPUs
  media: ddbridge: Move asm includes after linux ones
  media: drxk_hard: check if parameter is not NULL
  media: docs: fix some GPL licensing ambiguity at the text
  media: platform: Add Aspeed Video Engine driver
  media: dt-bindings: media: Add Aspeed Video Engine binding documentation
  media: vimc: fix start stream when link is disabled
  media: v4l2-device: Link subdevices to their parent devices if available
  media: siano: Use kmemdup instead of duplicating its function
  media: rockchip vpu: remove some unused vars
  media: cedrus: don't initialize pointers with zero
  media: cetrus: return an error if alloc fails
  media: cedrus: Add device-tree compatible and variant for A64 support
  media: cedrus: Add device-tree compatible and variant for H5 support
  media: dt-bindings: media: cedrus: Add compatibles for the A64 and H5
  media: video-i2c: check if chip struct has set_power function
  media: video-i2c: support runtime PM
  media: staging: media: imx: Use of_node_name_eq for node name comparisons
  media: v4l2-subdev: document controls need _FL_HAS_DEVNODE
  media: vivid: Improve timestamping
  ...
 2018-12-25 13:00:14 -08:00
Linus Torvalds
eaa7649971 SPI NOR Changes 
Core changes:
   - Parse the 4BAIT SFDP section
   - Add a bunch of SPI NOR entries to the flash_info table
   - Add the concept of SFDP fixups and use it to fix a bug on MX25L25635F
   - A bunch of minor cleanups/comestic changes
 
 NAND changes:
   NAND core changes:
   - kernel-doc miscellaneous fixes.
   - Third batch of fixes/cleanup to the raw NAND core impacting various
     controller drivers (ams-delta, marvell, fsmc, denali, tegra, vf610):
     * Stopping to pass mtd_info objects to internal functions
     * Reorganizing code to avoid forward declarations
     * Dropping useless test in nand_legacy_set_defaults()
     * Moving nand_exec_op() to internal.h
     * Adding nand_[de]select_target() helpers
     * Passing the CS line to be selected in struct nand_operation
     * Making ->select_chip() optional when ->exec_op() is implemented
     * Deprecating the ->select_chip() hook
     * Moving the ->exec_op() method to nand_controller_ops
     * Moving ->setup_data_interface() to nand_controller_ops
     * Deprecating the dummy_controller field
     * Fixing JEDEC detection
     * Providing a helper for polling GPIO R/B pin
 
   Raw NAND chip drivers changes:
   - Macronix:
     * Flagging 1.8V AC chips with a broken GET_FEATURES(TIMINGS)
 
   Raw NAND controllers drivers changes:
   - Ams-delta:
     * Fixing the error path
     * SPDX tag added
     * May be compiled with COMPILE_TEST=y
     * Conversion to ->exec_op() interface
     * Dropping .IOADDR_R/W use
     * Use GPIO API for data I/O
   - Denali:
     * Removing denali_reset_banks()
     * Removing ->dev_ready() hook
     * Including <linux/bits.h> instead of <linux/bitops.h>
     * Changes to comply with the above fixes/cleanup done in the core.
   - FSMC:
     * Adding an SPDX tag to replace the license text
     * Making conversion from chip to fsmc consistent
     * Fixing unchecked return value in fsmc_read_page_hwecc
     * Changes to comply with the above fixes/cleanup done in the core.
   - Marvell:
     * Preventing timeouts on a loaded machine (fix)
     * Changes to comply with the above fixes/cleanup done in the core.
   - OMAP2:
     * Pass the parent of pdev to dma_request_chan() (fix)
   - R852:
     * Use generic DMA API
   - sh_flctl:
     * Converting to SPDX identifiers
   - Sunxi:
     * Write pageprog related opcodes to the right register: WCMD_SET (fix)
   - Tegra:
     * Stop implementing ->select_chip()
   - VF610:
     * Adding an SPDX tag to replace the license text
     * Changes to comply with the above fixes/cleanup done in the core.
   - Various trivial/spelling/coding style fixes.
 
   SPI-NAND drivers changes:
   - Removing the depreacated mt29f_spinand driver from staging.
   - Adding support for:
     * Toshiba TC58CVG2S0H
     * GigaDevice GD5FxGQ4xA
     * Winbond W25N01GV
 
 JFFS2 changes:
 - Fix a lockdep issue
 
 MTD changes:
 - Rework the physmap driver to merge gpio-addr-flash and physmap_of
   in it
 - Add a new compatible for RedBoot partitions
 - Make sub-partitions RW if the parent partition was RO because of a
   mis-alignment
 - Add pinctrl support to the
 - Addition of /* fall-through */ comments where appropriate
 - Various minor fixes and cleanups
 
 Other changes:
 - Update my email address
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Merge tag 'mtd/for-4.21' of git://git.infradead.org/linux-mtd

Pull mtd updates from Boris Brezillon:
 "SPI NOR Core changes:
   - Parse the 4BAIT SFDP section
   - Add a bunch of SPI NOR entries to the flash_info table
   - Add the concept of SFDP fixups and use it to fix a bug on MX25L25635F
   - A bunch of minor cleanups/comestic changes

  NAND core changes:
   - kernel-doc miscellaneous fixes.
   - Third batch of fixes/cleanup to the raw NAND core impacting various
     controller drivers (ams-delta, marvell, fsmc, denali, tegra,
     vf610):
      * Stop to pass mtd_info objects to internal functions
      * Reorganize code to avoid forward declarations
      * Drop useless test in nand_legacy_set_defaults()
      * Move nand_exec_op() to internal.h
      * Add nand_[de]select_target() helpers
      * Pass the CS line to be selected in struct nand_operation
      * Make ->select_chip() optional when ->exec_op() is implemented
      * Deprecate the ->select_chip() hook
      * Move the ->exec_op() method to nand_controller_ops
      * Move ->setup_data_interface() to nand_controller_ops
      * Deprecate the dummy_controller field
      * Fix JEDEC detection
      * Provide a helper for polling GPIO R/B pin

  Raw NAND chip drivers changes:
   - Macronix:
      * Flag 1.8V AC chips with a broken GET_FEATURES(TIMINGS)

  Raw NAND controllers drivers changes:
   - Ams-delta:
      * Fix the error path
      * SPDX tag added
      * May be compiled with COMPILE_TEST=y
      * Conversion to ->exec_op() interface
      * Drop .IOADDR_R/W use
      * Use GPIO API for data I/O
   - Denali:
      * Remove denali_reset_banks()
      * Remove ->dev_ready() hook
      * Include <linux/bits.h> instead of <linux/bitops.h>
      * Changes to comply with the above fixes/cleanup done in the core.
   - FSMC:
      * Add an SPDX tag to replace the license text
      * Make conversion from chip to fsmc consistent
      * Fix unchecked return value in fsmc_read_page_hwecc
      * Changes to comply with the above fixes/cleanup done in the core.
   - Marvell:
      * Prevent timeouts on a loaded machine (fix)
      * Changes to comply with the above fixes/cleanup done in the core.
   - OMAP2:
      * Pass the parent of pdev to dma_request_chan() (fix)
   - R852:
      * Use generic DMA API
   - sh_flctl:
      * Convert to SPDX identifiers
   - Sunxi:
      * Write pageprog related opcodes to the right register: WCMD_SET (fix)
   - Tegra:
      * Stop implementing ->select_chip()
   - VF610:
      * Add an SPDX tag to replace the license text
      * Changes to comply with the above fixes/cleanup done in the core.
   - Various trivial/spelling/coding style fixes.

  SPI-NAND drivers changes:
   - Remove the depreacated mt29f_spinand driver from staging.
   - Add support for:
      * Toshiba TC58CVG2S0H
      * GigaDevice GD5FxGQ4xA
      * Winbond W25N01GV

  JFFS2 changes:
   - Fix a lockdep issue

  MTD changes:
   - Rework the physmap driver to merge gpio-addr-flash and physmap_of
     in it
   - Add a new compatible for RedBoot partitions
   - Make sub-partitions RW if the parent partition was RO because of a
     mis-alignment
   - Add pinctrl support to the
   - Addition of /* fall-through */ comments where appropriate
   - Various minor fixes and cleanups

  Other changes:
   - Update my email address"

* tag 'mtd/for-4.21' of git://git.infradead.org/linux-mtd: (108 commits)
  mtd: rawnand: sunxi: Write pageprog related opcodes to WCMD_SET
  MAINTAINERS: Update my email address
  mtd: rawnand: marvell: prevent timeouts on a loaded machine
  mtd: rawnand: omap2: Pass the parent of pdev to dma_request_chan()
  mtd: rawnand: Fix JEDEC detection
  mtd: spi-nor: Add support for is25lp016d
  mtd: spi-nor: parse SFDP 4-byte Address Instruction Table
  mtd: spi-nor: Add 4B_OPCODES flag to is25lp256
  mtd: spi-nor: Add an SPDX tag to spi-nor.{c,h}
  mtd: spi-nor: Make the enable argument passed to set_byte() a bool
  mtd: spi-nor: Stop passing flash_info around
  mtd: spi-nor: Avoid forward declaration of internal functions
  mtd: spi-nor: Drop inline on all internal helpers
  mtd: spi-nor: Add a post BFPT fixup for MX25L25635E
  mtd: spi-nor: Add a post BFPT parsing fixup hook
  mtd: spi-nor: Add the SNOR_F_4B_OPCODES flag
  mtd: spi-nor: cast to u64 to avoid uint overflows
  mtd: spi-nor: Add support for IS25LP032/064
  mtd: spi-nor: add entry for mt35xu512aba flash
  mtd: spi-nor: add macros related to MICRON flash
  ...
 2018-12-25 12:49:46 -08:00
Linus Torvalds
b3cc2bfe72 Add initial support for I3C along with 2 I3C master controller drivers. 
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Merge tag 'i3c/for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

Pull initial i3c support from Boris Brezillon:
 "Add initial support for I3C along with two I3C master controller
  drivers"

* tag 'i3c/for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  i3c: master: cdns: fix I2C transfers in Cadence I3C master driver
  ic3: off by one in mode_show()
  i3c: fix an error code in i3c_master_add_i3c_dev_locked()
  i3c: master: dw: fix mask operation by using the correct operator
  MAINTAINERS: Add myself as the dw-i3c-master module maintainer
  dt-binding: i3c: Document Synopsys DesignWare I3C
  i3c: master: Add driver for Synopsys DesignWare IP
  i3c: master: Remove set but not used variable 'old_i3c_scl_lim'
  dt-bindings: i3c: Document Cadence I3C master bindings
  i3c: master: Add driver for Cadence IP
  MAINTAINERS: Add myself as the I3C subsystem maintainer
  dt-bindings: i3c: Document core bindings
  i3c: Add sysfs ABI spec
  docs: driver-api: Add I3C documentation
  i3c: Add core I3C infrastructure
 2018-12-25 12:26:34 -08:00
Linus Torvalds
4971f090aa drm pull request for 4.21-rc1 
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Merge tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Core:
   - shared fencing staging removal
   - drop transactional atomic helpers and move helpers to new location
   - DP/MST atomic cleanup
   - Leasing cleanups and drop EXPORT_SYMBOL
   - Convert drivers to atomic helpers and generic fbdev.
   - removed deprecated obj_ref/unref in favour of get/put
   - Improve dumb callback documentation
   - MODESET_LOCK_BEGIN/END helpers

  panels:
   - CDTech panels, Banana Pi Panel, DLC1010GIG,
   - Olimex LCD-O-LinuXino, Samsung S6D16D0, Truly NT35597 WQXGA,
   - Himax HX8357D, simulated RTSM AEMv8.
   - GPD Win2 panel
   - AUO G101EVN010

  vgem:
   - render node support

  ttm:
   - move global init out of drivers
   - fix LRU handling for ghost objects
   - Support for simultaneous submissions to multiple engines

  scheduler:
   - timeout/fault handling changes to help GPU recovery
   - helpers for hw with preemption support

  i915:
   - Scaler/Watermark fixes
   - DP MST + powerwell fixes
   - PSR fixes
   - Break long get/put shmemfs pages
   - Icelake fixes
   - Icelake DSI video mode enablement
   - Engine workaround improvements

  amdgpu:
   - freesync support
   - GPU reset enabled on CI, VI, SOC15 dGPUs
   - ABM support in DC
   - KFD support for vega12/polaris12
   - SDMA paging queue on vega
   - More amdkfd code sharing
   - DCC scanout on GFX9
   - DC kerneldoc
   - Updated SMU firmware for GFX8 chips
   - XGMI PSP + hive reset support
   - GPU reset
   - DC trace support
   - Powerplay updates for newer Polaris
   - Cursor plane update fast path
   - kfd dma-buf support

  virtio-gpu:
   - add EDID support

  vmwgfx:
   - pageflip with damage support

  nouveau:
   - Initial Turing TU104/TU106 modesetting support

  msm:
   - a2xx gpu support for apq8060 and imx5
   - a2xx gpummu support
   - mdp4 display support for apq8060
   - DPU fixes and cleanups
   - enhanced profiling support
   - debug object naming interface
   - get_iova/page pinning decoupling

  tegra:
   - Tegra194 host1x, VIC and display support enabled
   - Audio over HDMI for Tegra186 and Tegra194

  exynos:
   - DMA/IOMMU refactoring
   - plane alpha + blend mode support
   - Color format fixes for mixer driver

  rcar-du:
   - R8A7744 and R8A77470 support
   - R8A77965 LVDS support

  imx:
   - fbdev emulation fix
   - multi-tiled scalling fixes
   - SPDX identifiers

  rockchip
   - dw_hdmi support
   - dw-mipi-dsi + dual dsi support
   - mailbox read size fix

  qxl:
   - fix cursor pinning

  vc4:
   - YUV support (scaling + cursor)

  v3d:
   - enable TFU (Texture Formatting Unit)

  mali-dp:
   - add support for linear tiled formats

  sun4i:
   - Display Engine 3 support
   - H6 DE3 mixer 0 support
   - H6 display engine support
   - dw-hdmi support
   - H6 HDMI phy support
   - implicit fence waiting
   - BGRX8888 support

  meson:
   - Overlay plane support
   - implicit fence waiting
   - HDMI 1.4 4k modes

  bridge:
   - i2c fixes for sii902x"

* tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm: (1403 commits)
  drm/amd/display: Add fast path for cursor plane updates
  drm/amdgpu: Enable GPU recovery by default for CI
  drm/amd/display: Fix duplicating scaling/underscan connector state
  drm/amd/display: Fix unintialized max_bpc state values
  Revert "drm/amd/display: Set RMX_ASPECT as default"
  drm/amdgpu: Fix stub function name
  drm/msm/dpu: Fix clock issue after bind failure
  drm/msm/dpu: Clean up dpu_media_info.h static inline functions
  drm/msm/dpu: Further cleanups for static inline functions
  drm/msm/dpu: Cleanup the debugfs functions
  drm/msm/dpu: Remove dpu_irq and unused functions
  drm/msm: Make irq_postinstall optional
  drm/msm/dpu: Cleanup callers of dpu_hw_blk_init
  drm/msm/dpu: Remove unused functions
  drm/msm/dpu: Remove dpu_crtc_is_enabled()
  drm/msm/dpu: Remove dpu_crtc_get_mixer_height
  drm/msm/dpu: Remove dpu_dbg
  drm/msm: dpu: Remove crtc_lock
  drm/msm: dpu: Remove vblank_requested flag from dpu_crtc
  drm/msm: dpu: Separate crtc assignment from vblank enable
  ...
 2018-12-25 11:48:26 -08:00
Linus Torvalds
c76cd634eb platform-drivers-x86 for v4.21-1 
The USB Power Delivery discrete components now can be enumerated by
 i2c-multi-instantiate driver via several resources under single ACPI
 device node (ACPI ID is INT3515).
 
 Touchscreen support is added for the Mediacom Flexbook Edge 11.
 
 Mellanox driver got fixed due to updates in their firmware.
 
 The power management stub driver for AtomISP v2 is fixed in order to support
 Intel Baytrail SoCs where same quirk is needed for S0ix to work.
 
 Special key handling has been fixed for Favorites hotkey on Thinkpad, and
 Screen LOCK on ASUS.
 
 Ideapad Yoga 2 13 has no HW rfkill switch, thus, driver has been updated
 to support this.
 
 Few cleanups related to debugfs have been made in Intel IPS and
 Intel PMC drivers. Besides that Intel PMC has been extended
 to show more detailed information about Latency Tolerance.
 
 The following is an automated git shortlog grouped by driver:
 
 ACPI / scan:
  -  Create platform device for INT3515 ACPI nodes
 
 Add the VLV ISP PCI ID to atomisp2_pm:
  - Add the VLV ISP PCI ID to atomisp2_pm
 
 asus-nb-wmi:
  -  Drop mapping of 0x33 and 0x34 scan codes
  -  Map 0x35 to KEY_SCREENLOCK
 
 asus-wmi:
  -  Tell the EC the OS will handle the display off hotkey
 
 dell-laptop:
  -  Mark expected switch fall-throughs
 
 Documentation/ABI:
  -  Add new attribute for mlxreg-io sysfs interfaces
 
 Fix config space access for intel_atomisp2_pm:
  - Fix config space access for intel_atomisp2_pm
 
 i2c:
  -  acpi: Introduce i2c_acpi_get_i2c_resource() helper
  -  acpi: Use ACPI_FAILURE instead of !ACPI_SUCCESS
  -  acpi: Return error pointers from i2c_acpi_new_device()
 
 i2c-multi-instantiate:
  -  Allow to have same slaves
  -  Introduce IOAPIC IRQ support
  -  Distinguish IRQ resource type
  -  Count I2cSerialBus() resources
  -  Get rid of obsolete conditional
  -  Defer probe when no adapter found
  -  Accept errors of i2c_acpi_new_device()
 
 ideapad-laptop:
  -  Add Yoga 2 13 to no_hw_rfkill list
 
 iio:
  -  inv_mpu6050: Use i2c_acpi_get_i2c_resource() helper
 
 intel_cht_int33fe:
  -  Get rid of obsolete conditional
  -  Accept errors of i2c_acpi_new_device()
  -  Remove duplicate NULL check
 
 intel_ips:
  -  Convert to use DEFINE_SHOW_ATTRIBUTE macro
  -  Remove never happen condition
  -  NULL check before some freeing functions is not needed
  -  remove unnecessary checks in ips_debugfs_init
 
 intel_pmc_core:
  -  convert to DEFINE_SHOW_ATTRIBUTE
  -  Decode Snoop / Non Snoop LTR
  -  Fix LTR IGNORE Max offset
  -  Show Latency Tolerance info
 
 intel_telemetry:
  -  convert to DEFINE_SHOW_ATTRIBUTE
 
 mlx-platform:
  -  Convert to use SPDX identifier
  -  Allow mlxreg-io driver activation for new systems
  -  Fix LED configuration
  -  Fix tachometer registers
  -  Rename new systems product names
  -  Add definitions for new registers
 
 thinkpad_acpi:
  -  Cleanup quirks macros
  -  Change the keymap for Favorites hotkey
 
 touchscreen_dmi:
  -  Add info for the Mediacom Flexbook Edge 11
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Merge tag 'platform-drivers-x86-v4.21-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver updates from Andy Shevchenko:

 - The USB Power Delivery discrete components now can be enumerated by
   i2c-multi-instantiate driver via several resources under single ACPI
   device node (ACPI ID is INT3515).

 - Touchscreen support is added for the Mediacom Flexbook Edge 11.

 - Mellanox driver got fixed due to updates in their firmware.

 - The power management stub driver for AtomISP v2 is fixed in order to
   support Intel Baytrail SoCs where same quirk is needed for S0ix to
   work.

 - Special key handling has been fixed for Favorites hotkey on Thinkpad,
   and Screen LOCK on ASUS.

 - Ideapad Yoga 2 13 has no HW rfkill switch, thus, driver has been
   updated to support this.

 - Few cleanups related to debugfs have been made in Intel IPS and Intel
   PMC drivers. Besides that Intel PMC has been extended to show more
   detailed information about Latency Tolerance

* tag 'platform-drivers-x86-v4.21-1' of git://git.infradead.org/linux-platform-drivers-x86: (41 commits)
  platform/x86: mlx-platform: Convert to use SPDX identifier
  Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
  platform/x86: mlx-platform: Allow mlxreg-io driver activation for new systems
  platform/x86: mlx-platform: Fix LED configuration
  platform/x86: mlx-platform: Fix tachometer registers
  platform/x86: mlx-platform: Rename new systems product names
  platform/x86: mlx-platform: Add definitions for new registers
  platform/x86: intel_telemetry: convert to DEFINE_SHOW_ATTRIBUTE
  platform/x86: intel_pmc_core: convert to DEFINE_SHOW_ATTRIBUTE
  platform/x86: thinkpad_acpi: Cleanup quirks macros
  platform/x86: touchscreen_dmi: Add info for the Mediacom Flexbook Edge 11
  platform/x86: Fix config space access for intel_atomisp2_pm
  platform/x86: Add the VLV ISP PCI ID to atomisp2_pm
  platform/x86: intel_ips: Convert to use DEFINE_SHOW_ATTRIBUTE macro
  platform/x86: intel_ips: Remove never happen condition
  platform/x86: intel_ips: NULL check before some freeing functions is not needed
  platform/x86: intel_ips: remove unnecessary checks in ips_debugfs_init
  iio: inv_mpu6050: Use i2c_acpi_get_i2c_resource() helper
  ACPI / scan: Create platform device for INT3515 ACPI nodes
  platform/x86: i2c-multi-instantiate: Allow to have same slaves
  ...
 2018-12-25 11:04:17 -08:00
Fabrizio Castro
e94b815524 dt-bindings: pwm: rcar: Add r8a774c0 support 
Document RZ/G2E (R8A774C0) SoC bindings.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
 2018-12-24 12:06:56 +01:00
Anson Huang
9f4c8f9607 pwm: imx: Add ipg clock operation 
i.MX PWM module's ipg_clk_s is for PWM register access, on most of i.MX
SoCs, this ipg_clk_s is from system ipg clock or perclk which is always
enabled, but on i.MX7D, the ipg_clk_s is from PWM1_CLK_ROOT which is
controlled by CCGR132, that means the CCGR132 MUST be enabled first
before accessing PWM registers on i.MX7D. This patch adds ipg clock
operation to make sure register access successfully on i.MX7D and it
fixes Linux kernel boot up hang during PWM driver probe.

Fixes: 4a23e6ee9f ("ARM: dts: imx7d-sdb: Restore pwm backlight support")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
 2018-12-24 12:06:56 +01:00
Alexander Shiyan
f236d18868 pwm: clps711x: Switch to SPDX identifier 
Adopt the SPDX license identifier headers to ease license compliance
management.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
 2018-12-24 12:06:56 +01:00
Alexander Shiyan
b0f17570b8 pwm: clps711x: Fix period calculation 
Commit e39c0df1be ("pwm: Introduce the pwm_args concept") has
changed the variable for the period for clps711x-pwm driver, so now
pwm_get/set_period() works with pwm->state.period variable instead
of pwm->args.period.
This patch changes the period variable in other places where it is used.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
 2018-12-24 12:06:55 +01:00
Stefan Wahren
e747cbe257 pwm: bcm2835: Switch to SPDX identifier 
Adopt the SPDX license identifier headers to ease license compliance
management.

Cc: Bart Tanghe <bart.tanghe@thomasmore.be>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
 2018-12-24 12:06:55 +01:00
Clément Péron
88a053d292 pwm: Enable Kona PWM to be built for the Cygnus architecture 
The Cygnus architecture uses a Kona PWM. This is already present in the
device tree but can't be built actually. Hence, allow the Kona PWM to
be built for the Cygnus architecture.

Signed-off-by: Clément Péron <peron.clem@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
 2018-12-24 12:06:47 +01:00
Linus Torvalds
8fe28cb58b Linux 4.20 2018-12-23 15:55:59 -08:00
Linus Torvalds
3c730b1041 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull vfs fixes from Al Viro:
 "A couple of fixes - no common topic ;-)"

[ The aio spectre patch also came in from Jens, so now we have that
  doubly fixed .. ]

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  proc/sysctl: don't return ENOMEM on lookup when a table is unregistering
  aio: fix spectre gadget in lookup_ioctx
 2018-12-23 10:40:41 -08:00
Linus Torvalds
9105b8aa50 SCSI fixes on 20181221 
This is two simple target fixes and one discard related I/O starvation
 problem in sd.  The discard problem occurs because the discard page
 doesn't have a mempool backing so if the allocation fails due to
 memory pressure, we then lose the forward progress we require if the
 writeout is on the same device.  The fix is to back it with a mempool.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is two simple target fixes and one discard related I/O starvation
  problem in sd.

  The discard problem occurs because the discard page doesn't have a
  mempool backing so if the allocation fails due to memory pressure, we
  then lose the forward progress we require if the writeout is on the
  same device. The fix is to back it with a mempool"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: sd: use mempool for discard special page
  scsi: target: iscsi: cxgbit: add missing spin_lock_init()
  scsi: target: iscsi: cxgbit: fix csk leak
 2018-12-22 15:03:00 -08:00
Linus Torvalds
1104bd96eb A cleanup for userspace in compiler_types.h 
- don't pollute userspace with macro definitions
     From Xiaozhou Liu
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Merge tag 'compiler-attributes-for-linus-v4.20' of https://github.com/ojeda/linux

Pull compiler_types.h fix from Miguel Ojeda:
 "A cleanup for userspace in compiler_types.h: don't pollute userspace
  with macro definitions (Xiaozhou Liu)

  This is harmless for the kernel, but v4.19 was released with a few
  macros exposed to userspace as the patch explains; which this removes,
  so it *could* happen that we break something for someone (although
  leaving inline redefined is probably worse)"

* tag 'compiler-attributes-for-linus-v4.20' of https://github.com/ojeda/linux:
  include/linux/compiler_types.h: don't pollute userspace with macro definitions
 2018-12-22 14:29:21 -08:00
Linus Torvalds
38c0ecf608 Fix bug in auxdisplay. 
- charlcd: fix x/y command parsing
     From Mans Rullgard
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Merge tag 'auxdisplay-for-linus-v4.20' of https://github.com/ojeda/linux

Pull auxdisplay fix from Miguel Ojeda:
 "charlcd: fix x/y command parsing (Mans Rullgard)"

* tag 'auxdisplay-for-linus-v4.20' of https://github.com/ojeda/linux:
  auxdisplay: charlcd: fix x/y command parsing
 2018-12-22 14:25:23 -08:00
Christian Brauner
94f82008ce Revert "vfs: Allow userns root to call mknod on owned filesystems." 
This reverts commit 55956b59df.

commit 55956b59df ("vfs: Allow userns root to call mknod on owned filesystems.")
enabled mknod() in user namespaces for userns root if CAP_MKNOD is
available. However, these device nodes are useless since any filesystem
mounted from a non-initial user namespace will set the SB_I_NODEV flag on
the filesystem. Now, when a device node s created in a non-initial user
namespace a call to open() on said device node will fail due to:

bool may_open_dev(const struct path *path)
{
        return !(path->mnt->mnt_flags & MNT_NODEV) &&
                !(path->mnt->mnt_sb->s_iflags & SB_I_NODEV);
}

The problem with this is that as of the aforementioned commit mknod()
creates partially functional device nodes in non-initial user namespaces.
In particular, it has the consequence that as of the aforementioned commit
open() will be more privileged with respect to device nodes than mknod().
Before it was the other way around. Specifically, if mknod() succeeded
then it was transparent for any userspace application that a fatal error
must have occured when open() failed.

All of this breaks multiple userspace workloads and a widespread assumption
about how to handle mknod(). Basically, all container runtimes and systemd
live by the slogan "ask for forgiveness not permission" when running user
namespace workloads. For mknod() the assumption is that if the syscall
succeeds the device nodes are useable irrespective of whether it succeeds
in a non-initial user namespace or not. This logic was chosen explicitly
to allow for the glorious day when mknod() will actually be able to create
fully functional device nodes in user namespaces.
A specific problem people are already running into when running 4.18 rc
kernels are failing systemd services. For any distro that is run in a
container systemd services started with the PrivateDevices= property set
will fail to start since the device nodes in question cannot be
opened (cf. the arguments in [1]).

Full disclosure, Seth made the very sound argument that it is already
possible to end up with partially functional device nodes. Any filesystem
mounted with MS_NODEV set will allow mknod() to succeed but will not allow
open() to succeed. The difference to the case here is that the MS_NODEV
case is transparent to userspace since it is an explicitly set mount option
while the SB_I_NODEV case is an implicit property enforced by the kernel
and hence opaque to userspace.

[1]: https://github.com/systemd/systemd/pull/9483

Signed-off-by: Christian Brauner <christian@brauner.io>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Seth Forshee <seth.forshee@canonical.com>
Cc: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-12-22 14:18:34 -08:00
Christoph Hellwig
0cd60eb1a7 dma-mapping: fix flags in dma_alloc_wc 
We really need the writecombine flag in dma_alloc_wc, fix a stupid
oversight.

Fixes: 7ed1d91a9e ("dma-mapping: translate __GFP_NOFAIL to DMA_ATTR_NO_WARN")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-12-22 08:46:27 -08:00
Linus Torvalds
23203e3f34 Merge branch 'akpm' (patches from Andrew) 
Merge misc fixes from Andrew Morton:
 "4 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm, page_alloc: fix has_unmovable_pages for HugePages
  fork,memcg: fix crash in free_thread_stack on memcg charge fail
  mm: thp: fix flags for pmd migration when split
  mm, memory_hotplug: initialize struct pages for the full memory section
 2018-12-21 14:59:00 -08:00
Oscar Salvador
17e2e7d7e1 mm, page_alloc: fix has_unmovable_pages for HugePages 
While playing with gigantic hugepages and memory_hotplug, I triggered
the following #PF when "cat memoryX/removable":

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
  #PF error: [normal kernel read fault]
  PGD 0 P4D 0
  Oops: 0000 [#1] SMP PTI
  CPU: 1 PID: 1481 Comm: cat Tainted: G            E     4.20.0-rc6-mm1-1-default+ #18
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.0.0-prebuilt.qemu-project.org 04/01/2014
  RIP: 0010:has_unmovable_pages+0x154/0x210
  Call Trace:
   is_mem_section_removable+0x7d/0x100
   removable_show+0x90/0xb0
   dev_attr_show+0x1c/0x50
   sysfs_kf_seq_show+0xca/0x1b0
   seq_read+0x133/0x380
   __vfs_read+0x26/0x180
   vfs_read+0x89/0x140
   ksys_read+0x42/0x90
   do_syscall_64+0x5b/0x180
   entry_SYSCALL_64_after_hwframe+0x44/0xa9

The reason is we do not pass the Head to page_hstate(), and so, the call
to compound_order() in page_hstate() returns 0, so we end up checking
all hstates's size to match PAGE_SIZE.

Obviously, we do not find any hstate matching that size, and we return
NULL.  Then, we dereference that NULL pointer in
hugepage_migration_supported() and we got the #PF from above.

Fix that by getting the head page before calling page_hstate().

Also, since gigantic pages span several pageblocks, re-adjust the logic
for skipping pages.  While are it, we can also get rid of the
round_up().

[osalvador@suse.de: remove round_up(), adjust skip pages logic per Michal]
  Link: http://lkml.kernel.org/r/20181221062809.31771-1-osalvador@suse.de
Link: http://lkml.kernel.org/r/20181217225113.17864-1-osalvador@suse.de
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Pavel Tatashin <pavel.tatashin@microsoft.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-12-21 14:51:18 -08:00
Rik van Riel
5eed6f1dff fork,memcg: fix crash in free_thread_stack on memcg charge fail 
Commit 9b6f7e163c ("mm: rework memcg kernel stack accounting") will
result in fork failing if allocating a kernel stack for a task in
dup_task_struct exceeds the kernel memory allowance for that cgroup.

Unfortunately, it also results in a crash.

This is due to the code jumping to free_stack and calling
free_thread_stack when the memcg kernel stack charge fails, but without
tsk->stack pointing at the freshly allocated stack.

This in turn results in the vfree_atomic in free_thread_stack oopsing
with a backtrace like this:

#5 [ffffc900244efc88] die at ffffffff8101f0ab
 #6 [ffffc900244efcb8] do_general_protection at ffffffff8101cb86
 #7 [ffffc900244efce0] general_protection at ffffffff818ff082
    [exception RIP: llist_add_batch+7]
    RIP: ffffffff8150d487  RSP: ffffc900244efd98  RFLAGS: 00010282
    RAX: 0000000000000000  RBX: ffff88085ef55980  RCX: 0000000000000000
    RDX: ffff88085ef55980  RSI: 343834343531203a  RDI: 343834343531203a
    RBP: ffffc900244efd98   R8: 0000000000000001   R9: ffff8808578c3600
    R10: 0000000000000000  R11: 0000000000000001  R12: ffff88029f6c21c0
    R13: 0000000000000286  R14: ffff880147759b00  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #8 [ffffc900244efda0] vfree_atomic at ffffffff811df2c7
 #9 [ffffc900244efdb8] copy_process at ffffffff81086e37
#10 [ffffc900244efe98] _do_fork at ffffffff810884e0
#11 [ffffc900244eff10] sys_vfork at ffffffff810887ff
#12 [ffffc900244eff20] do_syscall_64 at ffffffff81002a43
    RIP: 000000000049b948  RSP: 00007ffcdb307830  RFLAGS: 00000246
    RAX: ffffffffffffffda  RBX: 0000000000896030  RCX: 000000000049b948
    RDX: 0000000000000000  RSI: 00007ffcdb307790  RDI: 00000000005d7421
    RBP: 000000000067370f   R8: 00007ffcdb3077b0   R9: 000000000001ed00
    R10: 0000000000000008  R11: 0000000000000246  R12: 0000000000000040
    R13: 000000000000000f  R14: 0000000000000000  R15: 000000000088d018
    ORIG_RAX: 000000000000003a  CS: 0033  SS: 002b

The simplest fix is to assign tsk->stack right where it is allocated.

Link: http://lkml.kernel.org/r/20181214231726.7ee4843c@imladris.surriel.com
Fixes: 9b6f7e163c ("mm: rework memcg kernel stack accounting")
Signed-off-by: Rik van Riel <riel@surriel.com>
Acked-by: Roman Gushchin <guro@fb.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-12-21 14:51:18 -08:00
Peter Xu
2e83ee1d86 mm: thp: fix flags for pmd migration when split 
When splitting a huge migrating PMD, we'll transfer all the existing PMD
bits and apply them again onto the small PTEs.  However we are fetching
the bits unconditionally via pmd_soft_dirty(), pmd_write() or
pmd_yound() while actually they don't make sense at all when it's a
migration entry.  Fix them up.  Since at it, drop the ifdef together as
not needed.

Note that if my understanding is correct about the problem then if
without the patch there is chance to lose some of the dirty bits in the
migrating pmd pages (on x86_64 we're fetching bit 11 which is part of
swap offset instead of bit 2) and it could potentially corrupt the
memory of an userspace program which depends on the dirty bit.

Link: http://lkml.kernel.org/r/20181213051510.20306-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Zi Yan <zi.yan@cs.rutgers.edu>
Cc: <stable@vger.kernel.org>	[4.14+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-12-21 14:51:18 -08:00
Mikhail Zaslonko
2830bf6f05 mm, memory_hotplug: initialize struct pages for the full memory section 
If memory end is not aligned with the sparse memory section boundary,
the mapping of such a section is only partly initialized.  This may lead
to VM_BUG_ON due to uninitialized struct page access from
is_mem_section_removable() or test_pages_in_a_zone() function triggered
by memory_hotplug sysfs handlers:

Here are the the panic examples:
 CONFIG_DEBUG_VM=y
 CONFIG_DEBUG_VM_PGFLAGS=y

 kernel parameter mem=2050M
 --------------------------
 page:000003d082008000 is uninitialized and poisoned
 page dumped because: VM_BUG_ON_PAGE(PagePoisoned(p))
 Call Trace:
 ( test_pages_in_a_zone+0xde/0x160)
   show_valid_zones+0x5c/0x190
   dev_attr_show+0x34/0x70
   sysfs_kf_seq_show+0xc8/0x148
   seq_read+0x204/0x480
   __vfs_read+0x32/0x178
   vfs_read+0x82/0x138
   ksys_read+0x5a/0xb0
   system_call+0xdc/0x2d8
 Last Breaking-Event-Address:
   test_pages_in_a_zone+0xde/0x160
 Kernel panic - not syncing: Fatal exception: panic_on_oops

 kernel parameter mem=3075M
 --------------------------
 page:000003d08300c000 is uninitialized and poisoned
 page dumped because: VM_BUG_ON_PAGE(PagePoisoned(p))
 Call Trace:
 ( is_mem_section_removable+0xb4/0x190)
   show_mem_removable+0x9a/0xd8
   dev_attr_show+0x34/0x70
   sysfs_kf_seq_show+0xc8/0x148
   seq_read+0x204/0x480
   __vfs_read+0x32/0x178
   vfs_read+0x82/0x138
   ksys_read+0x5a/0xb0
   system_call+0xdc/0x2d8
 Last Breaking-Event-Address:
   is_mem_section_removable+0xb4/0x190
 Kernel panic - not syncing: Fatal exception: panic_on_oops

Fix the problem by initializing the last memory section of each zone in
memmap_init_zone() till the very end, even if it goes beyond the zone end.

Michal said:

: This has alwways been problem AFAIU.  It just went unnoticed because we
: have zeroed memmaps during allocation before f7f99100d8 ("mm: stop
: zeroing memory during allocation in vmemmap") and so the above test
: would simply skip these ranges as belonging to zone 0 or provided a
: garbage.
:
: So I guess we do care for post f7f99100d8 kernels mostly and
: therefore Fixes: f7f99100d8 ("mm: stop zeroing memory during
: allocation in vmemmap")

Link: http://lkml.kernel.org/r/20181212172712.34019-2-zaslonko@linux.ibm.com
Fixes: f7f99100d8 ("mm: stop zeroing memory during allocation in vmemmap")
Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Suggested-by: Michal Hocko <mhocko@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Reported-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Cc: Pasha Tatashin <Pavel.Tatashin@microsoft.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-12-21 14:51:18 -08:00
Linus Torvalds
6cafab50ee Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 
Pull sparc fixes from David Miller:
 "Just some small fixes here and there, and a refcount leak in a serial
  driver, nothing serious"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  serial/sunsu: fix refcount leak
  sparc: Set "ARCH: sunxx" information on the same line
  sparc: vdso: Drop implicit common-page-size linker flag
 2018-12-21 14:23:57 -08:00
Linus Torvalds
87935eee57 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 
Pull more networking fixes from David Miller:
 "Some more bug fixes have trickled in, we have:

  1) Local MAC entries properly in mscc driver, from Allan W. Nielsen.

  2) Eric Dumazet found some more of the typical "pskb_may_pull() -->
     oops forgot to reload the header pointer" bugs in ipv6 tunnel
     handling.

  3) Bad SKB socket pointer in ipv6 fragmentation handling, from Herbert
     Xu.

  4) Overflow fix in sk_msg_clone(), from Vakul Garg.

  5) Validate address lengths in AF_PACKET, from Willem de Bruijn"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  qmi_wwan: Fix qmap header retrieval in qmimux_rx_fixup
  qmi_wwan: Add support for Fibocom NL678 series
  tls: Do not call sk_memcopy_from_iter with zero length
  ipv6: tunnels: fix two use-after-free
  Prevent overflow of sk_msg in sk_msg_clone()
  packet: validate address length
  net: netxen: fix a missing check and an uninitialized use
  tcp: fix a race in inet_diag_dump_icsk()
  MAINTAINERS: update cxgb4 and cxgb3 maintainer
  ipv6: frags: Fix bogus skb->sk in reassembled packets
  mscc: Configured MAC entries should be locked.
 2018-12-21 14:21:17 -08:00
Mans Rullgard
9bc30ab821 auxdisplay: charlcd: fix x/y command parsing 
The x/y command parsing has been broken since commit 129957069e
("staging: panel: Fixed checkpatch warning about simple_strtoul()").

Commit b34050fadb ("auxdisplay: charlcd: Fix and clean up handling of
x/y commands") fixed some problems by rewriting the parsing code,
but also broke things further by removing the check for a complete
command before attempting to parse it.  As a result, parsing is
terminated at the first x or y character.

This reinstates the check for a final semicolon.  Whereas the original
code use strchr(), this is wasteful seeing as the semicolon is always
at the end of the buffer.  Thus check this character directly instead.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
 2018-12-21 21:27:21 +01:00
Yangtao Li
d430aff8cd serial/sunsu: fix refcount leak 
The function of_find_node_by_path() acquires a reference to the node
returned by it and that reference needs to be dropped by its caller.

su_get_type() doesn't do that. The match node are used as an identifier
to compare against the current node, so we can directly drop the refcount
after getting the node from the path as it is not used as pointer.

Fix this by use a single variable and drop the refcount right after
of_find_node_by_path().

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-12-21 11:24:38 -08:00
Corentin Labbe
afaffac368 sparc: Set "ARCH: sunxx" information on the same line 
While checking boot log from SPARC qemu, I saw that the "ARCH: sunxx"
information was split on two different line.
This patchs merge both line together.
In the meantime, thoses information need to be printed via pr_info
since printk print them by default via the warning loglevel.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-12-21 11:24:38 -08:00
ndesaulniers@google.com
0ff70f62c6 sparc: vdso: Drop implicit common-page-size linker flag 
GNU linker's -z common-page-size's default value is based on the target
architecture. arch/sparc/vdso/Makefile sets it to the architecture
default, which is implicit and redundant. Drop it.

Link: https://lkml.kernel.org/r/20181206191231.192355-1-ndesaulniers@google.com
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-12-21 11:24:38 -08:00
Linus Torvalds
5092adb227 Unbreak AMD nested virtualization. 
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fix from Paolo Bonzini:
 "A simple patch for a pretty bad bug: Unbreak AMD nested
  virtualization."

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: nSVM: fix switch to guest mmu
 2018-12-21 11:15:36 -08:00
Daniele Palmas
d667044f49 qmi_wwan: Fix qmap header retrieval in qmimux_rx_fixup 
This patch fixes qmap header retrieval when modem is configured for
dl data aggregation.

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-12-21 10:58:45 -08:00
Linus Torvalds
e572fa0e84 Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull timer fix from Ingo Molnar:
 "Fix a division by zero crash in the posix-timers code"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  posix-timers: Fix division by zero bug
 2018-12-21 10:51:54 -08:00
Jörgen Storvist
7c3db4105c qmi_wwan: Add support for Fibocom NL678 series 
Added support for Fibocom NL678 series cellular module QMI interface.
Using QMI_QUIRK_SET_DTR required for Qualcomm MDM9x40 series chipsets.

Signed-off-by: Jörgen Storvist <jorgen.storvist@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-12-21 10:51:21 -08:00
Vakul Garg
65a10e28ae tls: Do not call sk_memcopy_from_iter with zero length 
In some conditions e.g. when tls_clone_plaintext_msg() returns -ENOSPC,
the number of bytes to be copied using subsequent function
sk_msg_memcopy_from_iter() becomes zero. This causes function
sk_msg_memcopy_from_iter() to fail which in turn causes tls_sw_sendmsg()
to return failure. To prevent it, do not call sk_msg_memcopy_from_iter()
when number of bytes to copy (indicated by 'try_to_copy') is zero.

Fixes: d829e9c411 ("tls: convert to generic sk_msg interface")
Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-12-21 10:26:54 -08:00
Linus Torvalds
d5fa080d4c Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull futex fix from Ingo Molnar:
 "A single fix for a robust futexes race between sys_exit() and
  sys_futex_lock_pi()"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Cure exit race
 2018-12-21 10:11:51 -08:00
Linus Torvalds
70ad6368e8 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 fixes from Ingo Molnar:
 "The biggest part is a series of reverts for the macro based GCC
  inlining workarounds. It caused regressions in distro build and other
  kernel tooling environments, and the GCC project was very receptive to
  fixing the underlying inliner weaknesses - so as time ran out we
  decided to do a reasonably straightforward revert of the patches. The
  plan is to rely on the 'asm inline' GCC 9 feature, which might be
  backported to GCC 8 and could thus become reasonably widely available
  on modern distros.

  Other than those reverts, there's misc fixes from all around the
  place.

  I wish our final x86 pull request for v4.20 was smaller..."

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "kbuild/Makefile: Prepare for using macros in inline assembly code to work around asm() related GCC inlining bugs"
  Revert "x86/objtool: Use asm macros to work around GCC inlining bugs"
  Revert "x86/refcount: Work around GCC inlining bug"
  Revert "x86/alternatives: Macrofy lock prefixes to work around GCC inlining bugs"
  Revert "x86/bug: Macrofy the BUG table section handling, to work around GCC inlining bugs"
  Revert "x86/paravirt: Work around GCC inlining bugs when compiling paravirt ops"
  Revert "x86/extable: Macrofy inline assembly code to work around GCC inlining bugs"
  Revert "x86/cpufeature: Macrofy inline assembly code to work around GCC inlining bugs"
  Revert "x86/jump-labels: Macrofy inline assembly code to work around GCC inlining bugs"
  x86/mtrr: Don't copy uninitialized gentry fields back to userspace
  x86/fsgsbase/64: Fix the base write helper functions
  x86/mm/cpa: Fix cpa_flush_array() TLB invalidation
  x86/vdso: Pass --eh-frame-hdr to the linker
  x86/mm: Fix decoy address handling vs 32-bit builds
  x86/intel_rdt: Ensure a CPU remains online for the region's pseudo-locking sequence
  x86/dump_pagetables: Fix LDT remap address marker
  x86/mm: Fix guard hole handling
 2018-12-21 09:22:24 -08:00
Eric Dumazet
cbb49697d5 ipv6: tunnels: fix two use-after-free 
xfrm6_policy_check() might have re-allocated skb->head, we need
to reload ipv6 header pointer.

sysbot reported :

BUG: KASAN: use-after-free in __ipv6_addr_type+0x302/0x32f net/ipv6/addrconf_core.c:40
Read of size 4 at addr ffff888191b8cb70 by task syz-executor2/1304

CPU: 0 PID: 1304 Comm: syz-executor2 Not tainted 4.20.0-rc7+ #356
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
 print_address_description.cold.7+0x9/0x1ff mm/kasan/report.c:256
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report.cold.8+0x242/0x309 mm/kasan/report.c:412
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:432
 __ipv6_addr_type+0x302/0x32f net/ipv6/addrconf_core.c:40
 ipv6_addr_type include/net/ipv6.h:403 [inline]
 ip6_tnl_get_cap+0x27/0x190 net/ipv6/ip6_tunnel.c:727
 ip6_tnl_rcv_ctl+0xdb/0x2a0 net/ipv6/ip6_tunnel.c:757
 vti6_rcv+0x336/0x8f3 net/ipv6/ip6_vti.c:321
 xfrm6_ipcomp_rcv+0x1a5/0x3a0 net/ipv6/xfrm6_protocol.c:132
 ip6_protocol_deliver_rcu+0x372/0x1940 net/ipv6/ip6_input.c:394
 ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:434
 NF_HOOK include/linux/netfilter.h:289 [inline]
 ip6_input+0xe9/0x600 net/ipv6/ip6_input.c:443
IPVS: ftp: loaded support on port[0] = 21
 ip6_mc_input+0x514/0x11c0 net/ipv6/ip6_input.c:537
 dst_input include/net/dst.h:450 [inline]
 ip6_rcv_finish+0x17a/0x330 net/ipv6/ip6_input.c:76
 NF_HOOK include/linux/netfilter.h:289 [inline]
 ipv6_rcv+0x115/0x640 net/ipv6/ip6_input.c:272
 __netif_receive_skb_one_core+0x14d/0x200 net/core/dev.c:4973
 __netif_receive_skb+0x2c/0x1e0 net/core/dev.c:5083
 process_backlog+0x24e/0x7a0 net/core/dev.c:5923
 napi_poll net/core/dev.c:6346 [inline]
 net_rx_action+0x7fa/0x19b0 net/core/dev.c:6412
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1027
 </IRQ>
 do_softirq.part.14+0x126/0x160 kernel/softirq.c:337
 do_softirq+0x19/0x20 kernel/softirq.c:340
 netif_rx_ni+0x521/0x860 net/core/dev.c:4569
 dev_loopback_xmit+0x287/0x8c0 net/core/dev.c:3576
 NF_HOOK include/linux/netfilter.h:289 [inline]
 ip6_finish_output2+0x193a/0x2930 net/ipv6/ip6_output.c:84
 ip6_fragment+0x2b06/0x3850 net/ipv6/ip6_output.c:727
 ip6_finish_output+0x6b7/0xc50 net/ipv6/ip6_output.c:152
 NF_HOOK_COND include/linux/netfilter.h:278 [inline]
 ip6_output+0x232/0x9d0 net/ipv6/ip6_output.c:171
 dst_output include/net/dst.h:444 [inline]
 ip6_local_out+0xc5/0x1b0 net/ipv6/output_core.c:176
 ip6_send_skb+0xbc/0x340 net/ipv6/ip6_output.c:1727
 ip6_push_pending_frames+0xc5/0xf0 net/ipv6/ip6_output.c:1747
 rawv6_push_pending_frames net/ipv6/raw.c:615 [inline]
 rawv6_sendmsg+0x3a3e/0x4b40 net/ipv6/raw.c:945
kobject: 'queues' (0000000089e6eea2): kobject_add_internal: parent: 'tunl0', set: '<NULL>'
kobject: 'queues' (0000000089e6eea2): kobject_uevent_env
 inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798
kobject: 'queues' (0000000089e6eea2): kobject_uevent_env: filter function caused the event to drop!
 sock_sendmsg_nosec net/socket.c:621 [inline]
 sock_sendmsg+0xd5/0x120 net/socket.c:631
 sock_write_iter+0x35e/0x5c0 net/socket.c:900
 call_write_iter include/linux/fs.h:1857 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x6b8/0x9f0 fs/read_write.c:487
kobject: 'rx-0' (00000000e2d902d9): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'rx-0' (00000000e2d902d9): kobject_uevent_env
 vfs_write+0x1fc/0x560 fs/read_write.c:549
 ksys_write+0x101/0x260 fs/read_write.c:598
kobject: 'rx-0' (00000000e2d902d9): fill_kobj_path: path = '/devices/virtual/net/tunl0/queues/rx-0'
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:607
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
kobject: 'tx-0' (00000000443b70ac): kobject_add_internal: parent: 'queues', set: 'queues'
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457669
Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f9bd200bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457669
RDX: 000000000000058f RSI: 00000000200033c0 RDI: 0000000000000003
kobject: 'tx-0' (00000000443b70ac): kobject_uevent_env
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9bd200c6d4
R13: 00000000004c2dcc R14: 00000000004da398 R15: 00000000ffffffff

Allocated by task 1304:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553
 __do_kmalloc_node mm/slab.c:3684 [inline]
 __kmalloc_node_track_caller+0x50/0x70 mm/slab.c:3698
 __kmalloc_reserve.isra.41+0x41/0xe0 net/core/skbuff.c:140
 __alloc_skb+0x155/0x760 net/core/skbuff.c:208
kobject: 'tx-0' (00000000443b70ac): fill_kobj_path: path = '/devices/virtual/net/tunl0/queues/tx-0'
 alloc_skb include/linux/skbuff.h:1011 [inline]
 __ip6_append_data.isra.49+0x2f1a/0x3f50 net/ipv6/ip6_output.c:1450
 ip6_append_data+0x1bc/0x2d0 net/ipv6/ip6_output.c:1619
 rawv6_sendmsg+0x15ab/0x4b40 net/ipv6/raw.c:938
 inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798
 sock_sendmsg_nosec net/socket.c:621 [inline]
 sock_sendmsg+0xd5/0x120 net/socket.c:631
 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116
 __sys_sendmsg+0x11d/0x280 net/socket.c:2154
 __do_sys_sendmsg net/socket.c:2163 [inline]
 __se_sys_sendmsg net/socket.c:2161 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
kobject: 'gre0' (00000000cb1b2d7b): kobject_add_internal: parent: 'net', set: 'devices'

Freed by task 1304:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 __kasan_slab_free+0x102/0x150 mm/kasan/kasan.c:521
 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528
 __cache_free mm/slab.c:3498 [inline]
 kfree+0xcf/0x230 mm/slab.c:3817
 skb_free_head+0x93/0xb0 net/core/skbuff.c:553
 pskb_expand_head+0x3b2/0x10d0 net/core/skbuff.c:1498
 __pskb_pull_tail+0x156/0x18a0 net/core/skbuff.c:1896
 pskb_may_pull include/linux/skbuff.h:2188 [inline]
 _decode_session6+0xd11/0x14d0 net/ipv6/xfrm6_policy.c:150
 __xfrm_decode_session+0x71/0x140 net/xfrm/xfrm_policy.c:3272
kobject: 'gre0' (00000000cb1b2d7b): kobject_uevent_env
 __xfrm_policy_check+0x380/0x2c40 net/xfrm/xfrm_policy.c:3322
 __xfrm_policy_check2 include/net/xfrm.h:1170 [inline]
 xfrm_policy_check include/net/xfrm.h:1175 [inline]
 xfrm6_policy_check include/net/xfrm.h:1185 [inline]
 vti6_rcv+0x4bd/0x8f3 net/ipv6/ip6_vti.c:316
 xfrm6_ipcomp_rcv+0x1a5/0x3a0 net/ipv6/xfrm6_protocol.c:132
 ip6_protocol_deliver_rcu+0x372/0x1940 net/ipv6/ip6_input.c:394
 ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:434
 NF_HOOK include/linux/netfilter.h:289 [inline]
 ip6_input+0xe9/0x600 net/ipv6/ip6_input.c:443
 ip6_mc_input+0x514/0x11c0 net/ipv6/ip6_input.c:537
 dst_input include/net/dst.h:450 [inline]
 ip6_rcv_finish+0x17a/0x330 net/ipv6/ip6_input.c:76
 NF_HOOK include/linux/netfilter.h:289 [inline]
 ipv6_rcv+0x115/0x640 net/ipv6/ip6_input.c:272
 __netif_receive_skb_one_core+0x14d/0x200 net/core/dev.c:4973
 __netif_receive_skb+0x2c/0x1e0 net/core/dev.c:5083
 process_backlog+0x24e/0x7a0 net/core/dev.c:5923
kobject: 'gre0' (00000000cb1b2d7b): fill_kobj_path: path = '/devices/virtual/net/gre0'
 napi_poll net/core/dev.c:6346 [inline]
 net_rx_action+0x7fa/0x19b0 net/core/dev.c:6412
 __do_softirq+0x308/0xb7e kernel/softirq.c:292

The buggy address belongs to the object at ffff888191b8cac0
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 176 bytes inside of
 512-byte region [ffff888191b8cac0, ffff888191b8ccc0)
The buggy address belongs to the page:
page:ffffea000646e300 count:1 mapcount:0 mapping:ffff8881da800940 index:0x0
flags: 0x2fffc0000000200(slab)
raw: 02fffc0000000200 ffffea0006eaaa48 ffffea00065356c8 ffff8881da800940
raw: 0000000000000000 ffff888191b8c0c0 0000000100000006 0000000000000000
page dumped because: kasan: bad access detected
kobject: 'queues' (000000005fd6226e): kobject_add_internal: parent: 'gre0', set: '<NULL>'

Memory state around the buggy address:
 ffff888191b8ca00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888191b8ca80: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
>ffff888191b8cb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                             ^
 ffff888191b8cb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888191b8cc00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

Fixes: 0d3c703a9d ("ipv6: Cleanup IPv6 tunnel receive path")
Fixes: ed1efb2aef ("ipv6: Add support for IPsec virtual tunnel interfaces")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-12-21 09:18:31 -08:00
Linus Torvalds
96d6ee7d2f final drm-fixes for 4.20 
array_index_nospec patch, cc: stable
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Merge tag 'drm-fixes-2018-12-21' of git://anongit.freedesktop.org/drm/drm

Pull final drm fix from Daniel Vetter:
 "Very calm week, so either everything perfect or everyone on holidays
  already. Just one array_index_nospec patch, also for stable"

* tag 'drm-fixes-2018-12-21' of git://anongit.freedesktop.org/drm/drm:
  drm/ioctl: Fix Spectre v1 vulnerabilities
 2018-12-21 09:17:52 -08:00