Commit Graph

868239 Commits

Author SHA1 Message Date
Aurelien Aptel
e37a02c7eb cifs: modefromsid: write mode ACE first
DACL should start with mode ACE first but we are putting it at the
end. reorder them to put it first.

Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2019-09-16 18:49:11 -05:00
Linus Torvalds
cc9b499a1f Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:

 - refactor the EFI config table handling across architectures

 - add support for the Dell EMC OEM config table

 - include AER diagnostic output to CPER handling of fatal PCIe errors

* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: cper: print AER info of PCIe fatal error
  efi: Export Runtime Configuration Interface table to sysfs
  efi: ia64: move SAL systab handling out of generic EFI code
  efi/x86: move UV_SYSTAB handling into arch/x86
  efi: x86: move efi_is_table_address() into arch/x86
2019-09-16 16:47:38 -07:00
Linus Torvalds
98c82b4b8b Merge branch 'core-stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull stacktrace fixlet from Ingo Molnar:
 "Two comment fixes"

* 'core-stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  lib/stackdepot: Fix outdated comments
2019-09-16 16:44:55 -07:00
Linus Torvalds
94d18ee934 Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
 "This cycle's RCU changes were:

   - A few more RCU flavor consolidation cleanups.

   - Updates to RCU's list-traversal macros improving lockdep usability.

   - Forward-progress improvements for no-CBs CPUs: Avoid ignoring
     incoming callbacks during grace-period waits.

   - Forward-progress improvements for no-CBs CPUs: Use ->cblist
     structure to take advantage of others' grace periods.

   - Also added a small commit that avoids needlessly inflicting
     scheduler-clock ticks on callback-offloaded CPUs.

   - Forward-progress improvements for no-CBs CPUs: Reduce contention on
     ->nocb_lock guarding ->cblist.

   - Forward-progress improvements for no-CBs CPUs: Add ->nocb_bypass
     list to further reduce contention on ->nocb_lock guarding ->cblist.

   - Miscellaneous fixes.

   - Torture-test updates.

   - minor LKMM updates"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (86 commits)
  MAINTAINERS: Update from paulmck@linux.ibm.com to paulmck@kernel.org
  rcu: Don't include <linux/ktime.h> in rcutiny.h
  rcu: Allow rcu_do_batch() to dynamically adjust batch sizes
  rcu/nocb: Don't wake no-CBs GP kthread if timer posted under overload
  rcu/nocb: Reduce __call_rcu_nocb_wake() leaf rcu_node ->lock contention
  rcu/nocb: Reduce nocb_cb_wait() leaf rcu_node ->lock contention
  rcu/nocb: Advance CBs after merge in rcutree_migrate_callbacks()
  rcu/nocb: Avoid synchronous wakeup in __call_rcu_nocb_wake()
  rcu/nocb: Print no-CBs diagnostics when rcutorture writer unduly delayed
  rcu/nocb: EXP Check use and usefulness of ->nocb_lock_contended
  rcu/nocb: Add bypass callback queueing
  rcu/nocb: Atomic ->len field in rcu_segcblist structure
  rcu/nocb: Unconditionally advance and wake for excessive CBs
  rcu/nocb: Reduce ->nocb_lock contention with separate ->nocb_gp_lock
  rcu/nocb: Reduce contention at no-CBs invocation-done time
  rcu/nocb: Reduce contention at no-CBs registry-time CB advancement
  rcu/nocb: Round down for number of no-CBs grace-period kthreads
  rcu/nocb: Avoid ->nocb_lock capture by corresponding CPU
  rcu/nocb: Avoid needless wakeups of no-CBs grace-period kthread
  rcu/nocb: Make __call_rcu_nocb_wake() safe for many callbacks
  ...
2019-09-16 16:28:19 -07:00
Linus Torvalds
d75a43c645 Merge branch 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool build fix from Ingo Molnar:
 "Fix objtool builds with more exotic, user-defined CFLAGS"

* 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Clobber user CFLAGS variable
2019-09-16 16:15:34 -07:00
Linus Torvalds
a480222f4c Merge branch 'core-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull header documentation fix from Ingo Molnar:
 "Fix the parameter description <asm-generic/div64.h>"

* 'core-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  asm-generic/div64: Fix documentation of do_div() parameter
2019-09-16 16:11:41 -07:00
Linus Torvalds
cef7298262 ARM: DT updates for v5.4
This is another huge branch with close to 450 changessets related to
 devicetree files, roughly half of this for 32-bit and 64-bit respectively.
 There are lots of cleanups and additional hardware support for platforms
 we already support based on SoCs from Renesas, ST-Microelectronics,
 Intel/Altera, Rockchips, Allwinner, Broadcom and other manufacturers.
 
 A total of 6 new SoCs and 37 new boards gets added this time, one more
 SoC will come in a follow-up branch. Most of the new boards are for
 64-bit ARM SoCs, the others are typically for the 32-bit Cortex-A7.
 
 Going more into details for SoC platforms with new hardware support:
 
 The Snapdragon 855 (SM8150) is Qualcomm's current high-end phone platform,
 usually paired with an external 5G modem. So far we only support the
 Qualcomm SM8150 MTP reference platform, but no actual products.
 
 For the slightly older Qualcomm platforms, support for several interesting
 products is getting added: Three laptops based on Snapdragon 835/MSM8998
 (Asus NovaGo, HP Envy X2 and Lenovo Miix 630), one laptop based on
 Snapdragon 850/sdm850 (Lenovo Yoga C630) and several phones based on
 the older Snapdragon 410/MSM8916 (Samsung A3 and A5, Longcheer L8150
 aka Android One 2nd gen "seed" aka Wileyfox Swift).
 
 Mediatek MT7629 is a new wireless network router chip, similar to
 the older MT7623. It gets added together with the reference board
 implementation.
 
 Allwinner V3 is a repackaged version of the existing low-end V3s chip,
 and is used in the tiny Lichee Pi Zero plus, also added here.  There is
 also a new TV set-top box based on Allwinner H6, the Tanix TX6, and the
 eMMC variant of the Olimex A64-Olinuxino development board.
 
 NXP i.MX8M Nano is a new member of the ever-expanding i.MX SoC family,
 similar to the i.MX8M Mini. As usual, there is a large number of new
 boards for i.MX SoCs: Einfochips i.MX8QXP AI_ML, SolidRun Hummingboard
 Pulse baseboard and System-on-Module, Boundary Devices i.MX8MQ Nitrogen8M,
 and TechNexion PICO-PI-IMX8M-DEV for the 64-bit i.MX8 line. For 32-bit,
 we get the Kontron i.MX6UL N6310 SoM with two baseboards, the PHYTEC
 phyBOARD-Segin SoM with three baseboards, and the Zodiac Inflight
 Innovations i.MX7 RMU2 board.
 
 In a different NXP product line, the Layerscape LS1046A "Freeway"
 reference board gets added.
 
 Amlogic SM1 (S905X3) and G12B (S922X, A311D) are updated chips from their
 set-top-box line and smart speaker with newer CPU and GPU cores compared
 to their predecessors. Both are now also supported by the Khadas VIM3
 development board series, and the dts files for that get reorganized a
 bit to better deal with all variants.  Another board based on SM1 that
 gets added is the SEI Robotics SEI610.
 
 There are a handful of new x86 and Power9 server boards using Aspeed BMC
 chips that are gaining support for running Linux on the BMC through the
 OpenBMC project: Facebook Minipack/Wedge100/Wedge40, Lenovo Hr855xg2,
 and Mihawk. Notably these are still new machines using SoCs based on
 the ARM9 and ARM11 CPU cores, as support for the new Cortex-A7 based
 AST2600 is still ramping up.
 
 There are three new end-user products using 32-bit Rockchips SoCs:
 Mecer Xtreme Mini S6 is an Android "mini PC" box based on the low-end
 RK3229 chip, while the two AOpen products Chromebox Mini (Fievel) and
 Chromebase Mini (Tiger) run ChromeOS and are meant for commercial settings
 (digital signage, PoS, ...).
 
 One more single-board computer based on the popular 64-bit RK3399 is
 added: the Leez RK3399 P710.
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM DT updates from Arnd Bergmann:
 "This is another huge branch with close to 450 changessets related to
  devicetree files, roughly half of this for 32-bit and 64-bit
  respectively. There are lots of cleanups and additional hardware
  support for platforms we already support based on SoCs from Renesas,
  ST-Microelectronics, Intel/Altera, Rockchips, Allwinner, Broadcom and
  other manufacturers.

  A total of 6 new SoCs and 37 new boards gets added this time, one more
  SoC will come in a follow-up branch. Most of the new boards are for
  64-bit ARM SoCs, the others are typically for the 32-bit Cortex-A7.

  Going more into details for SoC platforms with new hardware support:

   - The Snapdragon 855 (SM8150) is Qualcomm's current high-end phone
     platform, usually paired with an external 5G modem. So far we only
     support the Qualcomm SM8150 MTP reference platform, but no actual
     products.

   - For the slightly older Qualcomm platforms, support for several
     interesting products is getting added: Three laptops based on
     Snapdragon 835/MSM8998 (Asus NovaGo, HP Envy X2 and Lenovo Miix
     630), one laptop based on Snapdragon 850/sdm850 (Lenovo Yoga C630)
     and several phones based on the older Snapdragon 410/MSM8916
     (Samsung A3 and A5, Longcheer L8150 aka Android One 2nd gen "seed"
     aka Wileyfox Swift).

   - Mediatek MT7629 is a new wireless network router chip, similar to
     the older MT7623. It gets added together with the reference board
     implementation.

   - Allwinner V3 is a repackaged version of the existing low-end V3s
     chip, and is used in the tiny Lichee Pi Zero plus, also added here.
     There is also a new TV set-top box based on Allwinner H6, the Tanix
     TX6, and the eMMC variant of the Olimex A64-Olinuxino development
     board.

   - NXP i.MX8M Nano is a new member of the ever-expanding i.MX SoC
     family, similar to the i.MX8M Mini. As usual, there is a large
     number of new boards for i.MX SoCs: Einfochips i.MX8QXP AI_ML,
     SolidRun Hummingboard Pulse baseboard and System-on-Module,
     Boundary Devices i.MX8MQ Nitrogen8M, and TechNexion
     PICO-PI-IMX8M-DEV for the 64-bit i.MX8 line. For 32-bit, we get the
     Kontron i.MX6UL N6310 SoM with two baseboards, the PHYTEC
     phyBOARD-Segin SoM with three baseboards, and the Zodiac Inflight
     Innovations i.MX7 RMU2 board.

   - In a different NXP product line, the Layerscape LS1046A "Freeway"
     reference board gets added.

   - Amlogic SM1 (S905X3) and G12B (S922X, A311D) are updated chips from
     their set-top-box line and smart speaker with newer CPU and GPU
     cores compared to their predecessors. Both are now also supported
     by the Khadas VIM3 development board series, and the dts files for
     that get reorganized a bit to better deal with all variants.
     Another board based on SM1 that gets added is the SEI Robotics
     SEI610.

   - There are a handful of new x86 and Power9 server boards using
     Aspeed BMC chips that are gaining support for running Linux on the
     BMC through the OpenBMC project: Facebook
     Minipack/Wedge100/Wedge40, Lenovo Hr855xg2, and Mihawk. Notably
     these are still new machines using SoCs based on the ARM9 and ARM11
     CPU cores, as support for the new Cortex-A7 based AST2600 is still
     ramping up.

   - There are three new end-user products using 32-bit Rockchips SoCs:
     Mecer Xtreme Mini S6 is an Android "mini PC" box based on the
     low-end RK3229 chip, while the two AOpen products Chromebox Mini
     (Fievel) and Chromebase Mini (Tiger) run ChromeOS and are meant for
     commercial settings(digital signage, PoS, ...).

   - One more single-board computer based on the popular 64-bit RK3399
     is added: the Leez RK3399 P710"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (467 commits)
  arm64: dts: qcom: Add Lenovo Yoga C630
  ARM: dts: aspeed-g5: Fixe gpio-ranges upper limit
  ARM; dts: aspeed: mihawk: File should not be executable
  ARM: dts: aspeed: swift: Change power supplies to version 2
  ARM: dts: aspeed: vesnin: Add secondary SPI flash chip
  ARM: dts: aspeed: vesnin: Add wdt2 with alt-boot option
  ARM: dts: aspeed-g4: Add all flash chips
  ARM: dts: exynos: Enable GPU/Mali T604 on Arndale board
  ARM: dts: exynos: Enable GPU/Mali T604 on Chromebook Snow
  ARM: dts: exynos: Add GPU/Mali T604 node to Exynos5250
  ARM: dts: exynos: Fix min/max buck4 for GPU on Arndale board
  ARM: dts: exynos: Mark LDO10 as always-on on Peach Pit/Pi Chromebooks
  ARM: dts: exynos: Remove not accurate secondary ADC compatible
  arm64: dts: rockchip: limit clock rate of MMC controllers for RK3328
  arm64: dts: meson-sm1-sei610: add stdout-path property back
  arm64: dts: meson-sm1-sei610: enable DVFS
  arm64: dts: khadas-vim3: add support for the SM1 based VIM3L
  dt-bindings: arm: amlogic: add Amlogic SM1 based Khadas VIM3L bindings
  arm64: dts: khadas-vim3: move common nodes into meson-khadas-vim3.dtsi
  arm64: dts: meson: g12a: add reset to tdm formatters
  ...
2019-09-16 15:56:22 -07:00
Linus Torvalds
d47ebd6842 ARM: SoC defconfig updates for v5.4
As usual, a bunch of commits, mostly adding drivers and other
 options to defconfigs after the code was merged through another
 tree.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC defconfig updates from Arnd Bergmann:
 "As usual, a bunch of commits, mostly adding drivers and other options
  to defconfigs after the code was merged through another tree"

* tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (32 commits)
  arm64: defconfig: Enable Qualcomm QUSB2 PHY
  arm64: defconfig: Enable the EFI Framebuffer
  arm64: defconfig: Enable Qualcomm GENI based I2C controller
  ARM: multi_v7_defconfig: Make MAX77802 regulator driver built-in
  arm64: defconfig: Enable CPU clock drivers for Qualcomm msm8916
  arm64: defconfig: Add DRM_MSM to defconfigs with ARCH_QCOM
  ARM: multi_v7_defconfig: Add DRM_MSM to defconfigs with ARCH_QCOM
  ARM: qcom_defconfig: Add DRM_MSM to defconfigs with ARCH_QCOM
  ARM: configs: aspeed_g5: Enable AST2600
  ARM: configs: multi_v7: Add ASPEED G6
  arm64: defconfig: Enable SM8150 GCC and pinctrl driver
  arm64: defconfig: Enable CONFIG_ACPI_APEI_PCIEAER
  arm64: defconfig: Enable the DesignWare watchdog
  ARM: multi_v7_defconfig: Enable SPI_STM32_QSPI support
  ARM: imx_v6_v7_defconfig: Enable the PSCI CPUidle driver
  arm64: defconfig: Enable the PSCI CPUidle driver
  arm64: defconfig: Enable Sun4i SPDIF module
  ARM: exynos_defconfig: Enable AHCI-platform SATA driver
  arm64: defconfig: CONFIG_DRM_ETNAVIV=m
  ARM: imx_v6_v7_defconfig: Select the OV5645 camera driver
  ...
2019-09-16 15:55:06 -07:00
Linus Torvalds
399eb9b6cb ARM: SoC driver updates for v5.4
The branch contains driver changes that are tightly
 connected to SoC specific code. Aside from smaller
 cleanups and bug fixes, here is a list of the notable
 changes.
 
 New device drivers:
 
 - The Turris Mox router has a new "moxtet" bus driver
   for its on-board pluggable extension bus. The
   same platform also gains a firmware driver.
 
 - The Samsung Exynos family gains a new Chipid driver
   exporting using the soc device sysfs interface
 
 - A similar socinfo driver for Qualcomm Snapdragon
   chips.
 
 - A firmware driver for the NXP i.MX DSP IPC protocol
   using shared memory and a mailbox
 
 Other changes:
 
 - The i.MX reset controller driver now supports the
   NXP i.MX8MM chip
 
 - Amlogic SoC specific drivers gain support for
   the S905X3 and A311D chips
 
 - A rework of the TI Davinci framebuffer driver to
   allow important cleanups in the platform code
 
 - A couple of device drivers for removed ARM SoC
   platforms are removed. Most of the removals were
   picked up by other maintainers, this contains
   whatever was left.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "This contains driver changes that are tightly connected to SoC
  specific code. Aside from smaller cleanups and bug fixes, here is a
  list of the notable changes.

  New device drivers:

   - The Turris Mox router has a new "moxtet" bus driver for its
     on-board pluggable extension bus. The same platform also gains a
     firmware driver.

   - The Samsung Exynos family gains a new Chipid driver exporting using
     the soc device sysfs interface

   - A similar socinfo driver for Qualcomm Snapdragon chips.

   - A firmware driver for the NXP i.MX DSP IPC protocol using shared
     memory and a mailbox

  Other changes:

   - The i.MX reset controller driver now supports the NXP i.MX8MM chip

   - Amlogic SoC specific drivers gain support for the S905X3 and A311D
     chips

   - A rework of the TI Davinci framebuffer driver to allow important
     cleanups in the platform code

   - A couple of device drivers for removed ARM SoC platforms are
     removed. Most of the removals were picked up by other maintainers,
     this contains whatever was left"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (123 commits)
  bus: uniphier-system-bus: use devm_platform_ioremap_resource()
  soc: ti: ti_sci_pm_domains: Add support for exclusive and shared access
  dt-bindings: ti_sci_pm_domains: Add support for exclusive and shared access
  firmware: ti_sci: Allow for device shared and exclusive requests
  bus: imx-weim: remove incorrect __init annotations
  fbdev: remove w90x900/nuc900 platform drivers
  spi: remove w90x900 driver
  net: remove w90p910-ether driver
  net: remove ks8695 driver
  firmware: turris-mox-rwtm: Add sysfs documentation
  firmware: Add Turris Mox rWTM firmware driver
  dt-bindings: firmware: Document cznic,turris-mox-rwtm binding
  bus: moxtet: fix unsigned comparison to less than zero
  bus: moxtet: remove set but not used variable 'dummy'
  ARM: scoop: Use the right include
  dt-bindings: power: add Amlogic Everything-Else power domains bindings
  soc: amlogic: Add support for Everything-Else power domains controller
  fbdev: da8xx: use resource management for dma
  fbdev: da8xx-fb: drop a redundant if
  fbdev: da8xx-fb: use devm_platform_ioremap_resource()
  ...
2019-09-16 15:52:38 -07:00
Linus Torvalds
2b97c39514 ARM: SoC platform updates for v5.4
The main change this time around is a cleanup of some of the oldest
 platforms based on the XScale and ARM9 CPU cores, which are between 10
 and 20 years old.
 
 The Kendin/Micrel/Microchip KS8695, Winbond/Nuvoton W90x900 and Intel
 IOP33x/IOP13xx platforms are removed after we determined that nobody is
 using them any more.
 
 The TI Davinci and NXP LPC32xx platforms on the other hand are still in
 active use and are converted to the ARCH_MULTIPLATFORM build, meaning
 that we can compile a kernel that works on these along with most other
 ARMv5 platforms. Changes toward that goal are also merged for IOP32x,
 but additional work is needed to complete this. Patches for the
 remaining ARMv5 platforms have started but need more work and some
 testing.
 
 Support for the new ASpeed AST2600 gets added, this is based on the
 Cortex-A7 ARMv7 core, and is a newer version of the existing ARMv5 and
 ARMv6 chips in the same family.
 
 Other changes include a cleanup of the ST-Ericsson ux500 platform
 and the move of the TI Davinci platform to a new clocksource driver.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "The main change this time around is a cleanup of some of the oldest
  platforms based on the XScale and ARM9 CPU cores, which are between 10
  and 20 years old.

  The Kendin/Micrel/Microchip KS8695, Winbond/Nuvoton W90x900 and Intel
  IOP33x/IOP13xx platforms are removed after we determined that nobody
  is using them any more.

  The TI Davinci and NXP LPC32xx platforms on the other hand are still
  in active use and are converted to the ARCH_MULTIPLATFORM build,
  meaning that we can compile a kernel that works on these along with
  most other ARMv5 platforms. Changes toward that goal are also merged
  for IOP32x, but additional work is needed to complete this. Patches
  for the remaining ARMv5 platforms have started but need more work and
  some testing.

  Support for the new ASpeed AST2600 gets added, this is based on the
  Cortex-A7 ARMv7 core, and is a newer version of the existing ARMv5 and
  ARMv6 chips in the same family.

  Other changes include a cleanup of the ST-Ericsson ux500 platform and
  the move of the TI Davinci platform to a new clocksource driver"

[ The changes had marked INTEL_IOP_ADMA and USB_LPC32XX as being
  buildable on other platforms through COMPILE_TEST, but that causes new
  warnings that I most definitely do not want to see during the merge
  window as that could hide other issues.

  So the COMPILE_TEST option got disabled for them again   - Linus ]

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (61 commits)
  ARM: multi_v5_defconfig: make DaVinci part of the ARM v5 multiplatform build
  ARM: davinci: support multiplatform build for ARM v5
  arm64: exynos: Enable exynos-chipid driver
  ARM: OMAP2+: Delete an unnecessary kfree() call in omap_hsmmc_pdata_init()
  ARM: OMAP2+: move platform-specific asm-offset.h to arch/arm/mach-omap2
  ARM: davinci: dm646x: Fix a typo in the comment
  ARM: davinci: dm646x: switch to using the clocksource driver
  ARM: davinci: dm644x: switch to using the clocksource driver
  ARM: aspeed: Enable SMP boot
  ARM: aspeed: Add ASPEED AST2600 architecture
  ARM: aspeed: Select timer in each SoC
  dt-bindings: arm: cpus: Add ASPEED SMP
  ARM: imx: stop adjusting ar8031 phy tx delay
  mailmap: map old company name to new one @microchip.com
  MAINTAINERS: at91: remove the TC entry
  MAINTAINERS: at91: Collect all pinctrl/gpio drivers in same entry
  ARM: at91: move platform-specific asm-offset.h to arch/arm/mach-at91
  MAINTAINERS: Extend patterns for Samsung SoC, Security Subsystem and clock drivers
  ARM: s3c64xx: squash samsung_usb_phy.h into setup-usb-phy.c
  ARM: debug-ll: Add support for r7s9210
  ...
2019-09-16 15:48:14 -07:00
Linus Torvalds
d0a16fe934 Merge branch 'parisc-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc updates from Helge Deller:

 - Make the powerpc implementation to read elf files available as a
   public kexec interface so it can be re-used on other architectures
   (Sven)

 - Implement kexec on parisc (Sven)

 - Add kprobes on ftrace on parisc (Sven)

 - Fix kernel crash with HSC-PCI cards based on card-mode Dino

 - Add assembly implementations for memset, strlen, strcpy, strncpy and
   strcat

 - Some cleanups, documentation updates, warning fixes, ...

* 'parisc-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: (25 commits)
  parisc: Have git ignore generated real2.S and firmware.c
  parisc: Disable HP HSC-PCI Cards to prevent kernel crash
  parisc: add support for kexec_file_load() syscall
  parisc: wire up kexec_file_load syscall
  parisc: add kexec syscall support
  parisc: add __pdc_cpu_rendezvous()
  kprobes/parisc: remove arch_kprobe_on_func_entry()
  kexec_elf: support 32 bit ELF files
  kexec_elf: remove unused variable in kexec_elf_load()
  kexec_elf: remove Elf_Rel macro
  kexec_elf: remove PURGATORY_STACK_SIZE
  kexec_elf: remove parsing of section headers
  kexec_elf: change order of elf_*_to_cpu() functions
  kexec: add KEXEC_ELF
  parisc: Save some bytes in dino driver
  parisc: Drop comments which are already in pci.h
  parisc: Convert eisa_enumerator to use pr_cont()
  parisc: Avoid warning when loading hppb driver
  parisc: speed up flush_tlb_all_local with qemu
  parisc: Add ALTERNATIVE_CODE() and ALT_COND_RUN_ON_QEMU
  ...
2019-09-16 15:38:31 -07:00
Linus Torvalds
76f0f227cf ia64 for v5.4 - big change here is removal of support for SGI Altix
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Merge tag 'please-pull-ia64_for_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

Pull ia64 updates from Tony Luck:
 "The big change here is removal of support for SGI Altix"

* tag 'please-pull-ia64_for_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: (33 commits)
  genirq: remove the is_affinity_mask_valid hook
  ia64: remove CONFIG_SWIOTLB ifdefs
  ia64: remove support for machvecs
  ia64: move the screen_info setup to common code
  ia64: move the ROOT_DEV setup to common code
  ia64: rework iommu probing
  ia64: remove the unused sn_coherency_id symbol
  ia64: remove the SGI UV simulator support
  ia64: remove the zx1 swiotlb machvec
  ia64: remove CONFIG_ACPI ifdefs
  ia64: remove CONFIG_PCI ifdefs
  ia64: remove the hpsim platform
  ia64: remove now unused machvec indirections
  ia64: remove support for the SGI SN2 platform
  drivers: remove the SGI SN2 IOC4 base support
  drivers: remove the SGI SN2 IOC3 base support
  qla2xxx: remove SGI SN2 support
  qla1280: remove SGI SN2 support
  misc/sgi-xp: remove SGI SN2 support
  char/mspec: remove SGI SN2 support
  ...
2019-09-16 15:32:01 -07:00
Linus Torvalds
58d4fafd0b RISC-V updates for v5.4-rc1
Add the following new features:
 
 - Generic CPU topology description support for DT-based platforms,
   including ARM64, ARM and RISC-V.
 
 - Sparsemem support
 
 - Perf callchain support
 
 - SiFive PLIC irqchip modifications, in preparation for M-mode Linux
 
 and clean up the code base:
 
 - Clean up chip-specific register (CSR) manipulation code, IPIs, TLB
   flushing, and the RISC-V CPU-local timer code
 
 - Kbuild cleanup from one of the Kbuild maintainers
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Merge tag 'riscv/for-v5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Paul Walmsley:
 "Add the following new features:

   - Generic CPU topology description support for DT-based platforms,
     including ARM64, ARM and RISC-V.

   - Sparsemem support

   - Perf callchain support

   - SiFive PLIC irqchip modifications, in preparation for M-mode Linux

  and clean up the code base:

   - Clean up chip-specific register (CSR) manipulation code, IPIs, TLB
     flushing, and the RISC-V CPU-local timer code

   - Kbuild cleanup from one of the Kbuild maintainers"

[ The CPU topology parts came in through the arm64 tree with a shared
  branch   - Linus ]

* tag 'riscv/for-v5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  irqchip/sifive-plic: set max threshold for ignored handlers
  riscv: move the TLB flush logic out of line
  riscv: don't use the rdtime(h) pseudo-instructions
  riscv: cleanup riscv_cpuid_to_hartid_mask
  riscv: optimize send_ipi_single
  riscv: cleanup send_ipi_mask
  riscv: refactor the IPI code
  riscv: Add support for libdw
  riscv: Add support for perf registers sampling
  riscv: Add perf callchain support
  riscv: add arch/riscv/Kbuild
  RISC-V: Implement sparsemem
  riscv: Using CSR numbers to access CSRs
2019-09-16 15:29:34 -07:00
Linus Torvalds
dbcda58ad9 m68k updates for v5.4
- ioremap() cleanups,
   - Defconfig updates,
   - Small fixes and cleanups.
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Merge tag 'm68k-for-v5.4-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

 - ioremap() cleanups

 - defconfig updates

 - small fixes and cleanups

* tag 'm68k-for-v5.4-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Remove ioremap_fullcache()
  m68k: Simplify ioremap_nocache()
  m68k: defconfig: Update defconfigs for v5.3-rc2
  m68k: atari: Rename shifter to shifter_st to avoid conflict
  m68k: Prevent some compiler warnings in Coldfire builds
  m68k: mac: Revisit floppy disc controller base addresses
2019-09-16 15:28:12 -07:00
Linus Torvalds
e77fafe9af arm64 updates for 5.4:
- 52-bit virtual addressing in the kernel
 
 - New ABI to allow tagged user pointers to be dereferenced by syscalls
 
 - Early RNG seeding by the bootloader
 
 - Improve robustness of SMP boot
 
 - Fix TLB invalidation in light of recent architectural clarifications
 
 - Support for i.MX8 DDR PMU
 
 - Remove direct LSE instruction patching in favour of static keys
 
 - Function error injection using kprobes
 
 - Support for the PPTT "thread" flag introduced by ACPI 6.3
 
 - Move PSCI idle code into proper cpuidle driver
 
 - Relaxation of implicit I/O memory barriers
 
 - Build with RELR relocations when toolchain supports them
 
 - Numerous cleanups and non-critical fixes
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 "Although there isn't tonnes of code in terms of line count, there are
  a fair few headline features which I've noted both in the tag and also
  in the merge commits when I pulled everything together.

  The part I'm most pleased with is that we had 35 contributors this
  time around, which feels like a big jump from the usual small group of
  core arm64 arch developers. Hopefully they all enjoyed it so much that
  they'll continue to contribute, but we'll see.

  It's probably worth highlighting that we've pulled in a branch from
  the risc-v folks which moves our CPU topology code out to where it can
  be shared with others.

  Summary:

   - 52-bit virtual addressing in the kernel

   - New ABI to allow tagged user pointers to be dereferenced by
     syscalls

   - Early RNG seeding by the bootloader

   - Improve robustness of SMP boot

   - Fix TLB invalidation in light of recent architectural
     clarifications

   - Support for i.MX8 DDR PMU

   - Remove direct LSE instruction patching in favour of static keys

   - Function error injection using kprobes

   - Support for the PPTT "thread" flag introduced by ACPI 6.3

   - Move PSCI idle code into proper cpuidle driver

   - Relaxation of implicit I/O memory barriers

   - Build with RELR relocations when toolchain supports them

   - Numerous cleanups and non-critical fixes"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (114 commits)
  arm64: remove __iounmap
  arm64: atomics: Use K constraint when toolchain appears to support it
  arm64: atomics: Undefine internal macros after use
  arm64: lse: Make ARM64_LSE_ATOMICS depend on JUMP_LABEL
  arm64: asm: Kill 'asm/atomic_arch.h'
  arm64: lse: Remove unused 'alt_lse' assembly macro
  arm64: atomics: Remove atomic_ll_sc compilation unit
  arm64: avoid using hard-coded registers for LSE atomics
  arm64: atomics: avoid out-of-line ll/sc atomics
  arm64: Use correct ll/sc atomic constraints
  jump_label: Don't warn on __exit jump entries
  docs/perf: Add documentation for the i.MX8 DDR PMU
  perf/imx_ddr: Add support for AXI ID filtering
  arm64: kpti: ensure patched kernel text is fetched from PoU
  arm64: fix fixmap copy for 16K pages and 48-bit VA
  perf/smmuv3: Validate groups for global filtering
  perf/smmuv3: Validate group size
  arm64: Relax Documentation/arm64/tagged-pointers.rst
  arm64: kvm: Replace hardcoded '1' with SYS_PAR_EL1_F
  arm64: mm: Ignore spurious translation faults taken from the kernel
  ...
2019-09-16 14:31:40 -07:00
Linus Torvalds
52a5525214 IOMMU Updates for Linux v5.4:
Including:
 
 	- Batched unmap support for the IOMMU-API
 
 	- Support for unlocked command queueing in the ARM-SMMU driver
 
 	- Rework the ATS support in the ARM-SMMU driver
 
 	- More refactoring in the ARM-SMMU driver to support hardware
 	  implemention specific quirks and errata
 
 	- Bounce buffering DMA-API implementatation in the Intel VT-d driver
 	  for untrusted devices (like Thunderbolt devices)
 
 	- Fixes for runtime PM support in the OMAP iommu driver
 
 	- MT8183 IOMMU support in the Mediatek IOMMU driver
 
 	- Rework of the way the IOMMU core sets the default domain type for
 	  groups. Changing the default domain type on x86 does not require two
 	  kernel parameters anymore.
 
 	- More smaller fixes and cleanups
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Merge tag 'iommu-updates-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:

 - batched unmap support for the IOMMU-API

 - support for unlocked command queueing in the ARM-SMMU driver

 - rework the ATS support in the ARM-SMMU driver

 - more refactoring in the ARM-SMMU driver to support hardware
   implemention specific quirks and errata

 - bounce buffering DMA-API implementatation in the Intel VT-d driver
   for untrusted devices (like Thunderbolt devices)

 - fixes for runtime PM support in the OMAP iommu driver

 - MT8183 IOMMU support in the Mediatek IOMMU driver

 - rework of the way the IOMMU core sets the default domain type for
   groups. Changing the default domain type on x86 does not require two
   kernel parameters anymore.

 - more smaller fixes and cleanups

* tag 'iommu-updates-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (113 commits)
  iommu/vt-d: Declare Broadwell igfx dmar support snafu
  iommu/vt-d: Add Scalable Mode fault information
  iommu/vt-d: Use bounce buffer for untrusted devices
  iommu/vt-d: Add trace events for device dma map/unmap
  iommu/vt-d: Don't switch off swiotlb if bounce page is used
  iommu/vt-d: Check whether device requires bounce buffer
  swiotlb: Split size parameter to map/unmap APIs
  iommu/omap: Mark pm functions __maybe_unused
  iommu/ipmmu-vmsa: Disable cache snoop transactions on R-Car Gen3
  iommu/ipmmu-vmsa: Move IMTTBCR_SL0_TWOBIT_* to restore sort order
  iommu: Don't use sme_active() in generic code
  iommu/arm-smmu-v3: Fix build error without CONFIG_PCI_ATS
  iommu/qcom: Use struct_size() helper
  iommu: Remove wrong default domain comments
  iommu/dma: Fix for dereferencing before null checking
  iommu/mediatek: Clean up struct mtk_smi_iommu
  memory: mtk-smi: Get rid of need_larbid
  iommu/mediatek: Fix VLD_PA_RNG register backup when suspend
  memory: mtk-smi: Add bus_sel for mt8183
  memory: mtk-smi: Invoke pm runtime_callback to enable clocks
  ...
2019-09-16 14:14:40 -07:00
Linus Torvalds
bbfe0d6b8b This is the bulk of changes in the GPIO subsystem for the
v5.4 kernel cycle.
 
 Core changes:
 
 - Support hierarchical GPIO irqchips. We now have three
   consumers that can use this: Intel IXP4xx, ThunderX and
   Qualcomm SPMI GPIO (in the pinctrl subsystem). The support
   code has been long in the making and hashed out so it should
   be easily adaptable for all hierarchical irqchip parents.
   The code only gets compiled in if hierarchical irqchip
   is used at the topmost irq controller at least, as the
   hierarchical irqchip requires strict hierarchy all the
   way up in the system.
 
 - Determine the need for a "valid_mask" for GPIO lines on the
   gpio_chip and conversely for the "valid_mask" for the GPIO
   interrupt chip interrupt lines by looking for a
   .init_valid_mask() callback in the main chip or GPIO interrupt
   chip respectively. Allocate it with bitmap_alloc().
 
 - Isolate the device tree/open firmware GPIO description code
   out in its own file properly.
 
 - Isolate the ACPI GPIO description code out in its own file
   properly.
 
 - Drop a whole lot of #ifdef:s in the main includes: it does
   not hurt to keep the include items around, and we get
   quicker and clearer compile failures if the appropriate
   kernel symbols are not selected for drivers.
 
 New/deleted drivers:
 
 - New driver for Aspeed SGPIO.
 
 - The KS8695 driver is deleted as the platform gets deleted
   from arch/arm in this kernel cycle.
 
 - The Cirrus Logic Madera driver now supports CS47L92 and
   CS47L15.
 
 - The Freescale MPC8xxx now supports LS1028A and LS1088A.
 
 Driver improvements:
 
 - We pass the GPIO irqchip intialization by directly filling
   in the struct instead of using set-up functions (the new
   way) for Intel MID, Lynxpoint, Merrifield, XLP, HLWD, Aspeed,
   ZX, VF610, TQMX86, MT7621, Zynq and EP93xx.
 
 Out-of-band changes:
 
 - Fix a GPIO header inclusion in Unicore - no response from
   maintainer.
 
 - Drop FMC subsystem from MAINTAINERS - was deleted in the
   GPIO tree last cycle so let's mop up the shards.
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Merge tag 'gpio-v5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of changes in the GPIO subsystem for the v5.4 kernel
  cycle.

  Core changes:

   - Support hierarchical GPIO irqchips.

     We now have three consumers that can use this: Intel IXP4xx,
     ThunderX and Qualcomm SPMI GPIO (in the pinctrl subsystem).

     The support code has been long in the making and hashed out so it
     should be easily adaptable for all hierarchical irqchip parents.
     The code only gets compiled in if hierarchical irqchip is used at
     the topmost irq controller at least, as the hierarchical irqchip
     requires strict hierarchy all the way up in the system.

   - Determine the need for a "valid_mask" for GPIO lines on the
     gpio_chip and conversely for the "valid_mask" for the GPIO
     interrupt chip interrupt lines by looking for a .init_valid_mask()
     callback in the main chip or GPIO interrupt chip respectively.
     Allocate it with bitmap_alloc().

   - Isolate the device tree/open firmware GPIO description code out in
     its own file properly.

   - Isolate the ACPI GPIO description code out in its own file
     properly.

   - Drop a whole lot of #ifdef:s in the main includes: it does not hurt
     to keep the include items around, and we get quicker and clearer
     compile failures if the appropriate kernel symbols are not selected
     for drivers.

  New/deleted drivers:

   - New driver for Aspeed SGPIO.

   - The KS8695 driver is deleted as the platform gets deleted from
     arch/arm in this kernel cycle.

   - The Cirrus Logic Madera driver now supports CS47L92 and CS47L15.

   - The Freescale MPC8xxx now supports LS1028A and LS1088A.

  Driver improvements:

   - We pass the GPIO irqchip intialization by directly filling in the
     struct instead of using set-up functions (the new way) for Intel
     MID, Lynxpoint, Merrifield, XLP, HLWD, Aspeed, ZX, VF610, TQMX86,
     MT7621, Zynq and EP93xx.

  Out-of-band changes:

   - Fix a GPIO header inclusion in Unicore - no response from
     maintainer.

   - Drop FMC subsystem from MAINTAINERS - was deleted in the GPIO tree
     last cycle so let's mop up the shards"

* tag 'gpio-v5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (82 commits)
  gpiolib: of: add a fallback for wlf,reset GPIO name
  gpio: htc-egpio: Remove unused exported htc_egpio_get_wakeup_irq()
  gpio: remove explicit comparison with 0
  gpio: creg-snps: use devm_platform_ioremap_resource() to simplify code
  gpio: devres: Switch to EXPORT_SYMBOL_GPL()
  gpio: of: Switch to EXPORT_SYMBOL_GPL()
  gpio: of: Make of_gpio_simple_xlate() private
  gpio: of: Make of_get_named_gpiod_flags() private
  gpio: aspeed: Add in ast2600 details to Aspeed driver
  gpio: aspeed: Use ngpio property from device tree if available
  gpio: aspeed: Setup irqchip dynamically
  gpio/aspeed: Fix incorrect number of banks
  gpio: aspeed: Update documentation with ast2600 controllers
  gpio: Initialize the irqchip valid_mask with a callback
  gpiolib: acpi: make acpi_can_fallback_to_crs() static
  gpio: Fix further merge errors
  gpio: Fix up merge collision in include file
  gpio: of: Normalize return code variable name
  gpio: gpiolib: Normalize return code variable name
  gpio: ep93xx: Pass irqchip when adding gpiochip
  ...
2019-09-16 14:06:50 -07:00
Linus Torvalds
31dda85e49 Core changes:
* Export i3c_device_match_id() so driver can get per-device data
 * Add addr and lvr fields to i2c_dev_desc so we can attach I2C devices
   that are not described in the DT
 * Add a missing of_node_put()
 * Fix a memory leak
 * Use dev_to_i3cmaster() instead of open-coding it
 
 Driver changes:
 * Use for_each_set_bit() in the Cadence driver
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Merge tag 'i3c/for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

Pull i3c updates from Boris Brezillon:
 "Core changes:

   - Export i3c_device_match_id() so driver can get per-device data

   - Add addr and lvr fields to i2c_dev_desc so we can attach I2C
     devices that are not described in the DT

   - Add a missing of_node_put()

   - Fix a memory leak

   - Use dev_to_i3cmaster() instead of open-coding it

  Driver changes:

   - Use for_each_set_bit() in the Cadence driver"

* tag 'i3c/for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  i3c: master: Use dev_to_i3cmaster()
  i3c: master: fix a memory leak bug
  i3c: add addr and lvr to i2c_dev_desc structure
  i3c: master: cdns: Use for_each_set_bit()
  i3c: master: Add of_node_put() before return
  i3c: move i3c_device_match_id to device.c and export it
2019-09-16 14:04:46 -07:00
Linus Torvalds
aa62325dc3 spi: Updates for v5.4
The big theme for this release has been performance, we've had a series
 of unrelated overhauls of a few drivers all with a big peformance
 component.  Otherwise it's been relatively quiet, highlights include:
 
  - A big overhaul of the spi-fsl-dspi driver improving the code quality,
    performance and stability from Vladimir Oltean.
  - A big performance enhancement for the bc2835 (Raspberry Pi) driver
    for unidirectional transfers from Lukas Wunner.
  - Improved performance on small transfers for the uniphier driver from
    Keiji Hayashibara.
  - Lots of coccinelle generated cleanups from Yue Haibing.
  - New device support for Freescale ls2080a and Nuvoton NPCM FIU.
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Merge tag 'spi-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "The big theme for this release has been performance, we've had a
  series of unrelated overhauls of a few drivers all with a big
  peformance component.

  Otherwise it's been relatively quiet, highlights include:

   - A big overhaul of the spi-fsl-dspi driver improving the code
     quality, performance and stability from Vladimir Oltean.

   - A big performance enhancement for the bc2835 (Raspberry Pi) driver
     for unidirectional transfers from Lukas Wunner.

   - Improved performance on small transfers for the uniphier driver
     from Keiji Hayashibara.

   - Lots of coccinelle generated cleanups from Yue Haibing.

   - New device support for Freescale ls2080a and Nuvoton NPCM FIU"

* tag 'spi-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (102 commits)
  spi: mediatek: support large PA
  spi: mediatek: add spi support for mt6765 IC
  dt-bindings: spi: update bindings for MT6765 SoC
  spi: bcm2835: Speed up RX-only DMA transfers by zero-filling TX FIFO
  spi: bcm2835: Speed up TX-only DMA transfers by clearing RX FIFO
  dmaengine: bcm2835: Avoid accessing memory when copying zeroes
  spi: bcm2835: Cache CS register value for ->prepare_message()
  dmaengine: bcm2835: Document struct bcm2835_dmadev
  spi: Guarantee cacheline alignment of driver-private data
  dmaengine: bcm2835: Allow reusable descriptors
  dmaengine: bcm2835: Allow cyclic transactions without interrupt
  spi: bcm2835: Drop dma_pending flag
  spi: bcm2835: Work around DONE bit erratum
  spi-gpio: Use PTR_ERR_OR_ZERO() in spi_gpio_request()
  spi: Use an abbreviated pointer to ctlr->cur_msg in __spi_pump_messages
  spi: npcm-fiu: remove set but not used variable 'retlen'
  spi: fsl-spi: use devm_platform_ioremap_resource() to simplify code
  spi: zynq-qspi: use devm_platform_ioremap_resource() to simplify code
  spi: zynqmp: use devm_platform_ioremap_resource() to simplify code
  spi: xlp: use devm_platform_ioremap_resource() to simplify code
  ...
2019-09-16 14:02:43 -07:00
Linus Torvalds
c4d11ccb2b regulator: Updates for v5.4
A small update for the regualtor API for this cycle, some small fixes
 and a bunch of new devices but none of them very big.  The most stand
 out thing is the regulator-fixed-clock driver which is for regulators
 where the enable control is done by using a clock instead of a GPIO or
 register write, a novel hardware design that had not previously come up.
 
  - Added a keyword pattern for regulator_get_optional() since usage of
    that API generally needs extra review.
  - Operating mode and suspend state support for act8865.
  - New device support for Active Semiconductor ACT8600 chargers,
    Mediatek MT6358, Qualcomm SM8150, regulator-fixed-clock, and
    Synoptics SY20276, SY20278 and SY8824E.
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Merge tag 'regulator-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "A small update for the regualtor API for this cycle, some small fixes
  and a bunch of new devices but none of them very big.

  The most stand out thing is the regulator-fixed-clock driver which is
  for regulators where the enable control is done by using a clock
  instead of a GPIO or register write, a novel hardware design that had
  not previously come up.

  Summary:

   - Added a keyword pattern for regulator_get_optional() since usage of
     that API generally needs extra review.

   - Operating mode and suspend state support for act8865.

   - New device support for Active Semiconductor ACT8600 chargers,
     Mediatek MT6358, Qualcomm SM8150, regulator-fixed-clock, and
     Synoptics SY20276, SY20278 and SY8824E"

* tag 'regulator-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (52 commits)
  regulator: core: Fix error return for /sys access
  regulator: da9211: fix obtaining "enable" GPIO
  regulator: max77686: fix obtaining "maxim,ena" GPIO
  regulator: uniphier: Add Pro5 USB3 VBUS support
  dt-bindings: regulator: add regulator-fixed-clock binding
  regulator: fixed: add possibility to enable by clock
  regulator: s2mps11: Consistently use local variable
  regulator: lp87565: Simplify lp87565_buck_set_ramp_delay
  regulator: slg51000: use devm_gpiod_get_optional() in probe
  regulator: lp8788-ldo: make array en_mask static const, makes object smaller
  regulator: tps65132: Stop parsing DT when gpio is not found
  regulator: Defer init completion for a while after late_initcall
  regulator: add missing 'static inline' to a helper's stub
  regulator: provide regulator_bulk_set_supply_names()
  MAINTAINERS: Add keyword pattern on regulator_get_optional()
  regulator: sy8824x: add prefixes to BUCK_EN and MODE macros
  regulator: sy8824x: use c++style for the comment block near SPDX
  regulator: mt6358: Add BROKEN dependency while waiting for MFD to merge
  regulator: mt6358: Add support for MT6358 regulator
  regulator: Add document for MT6358 regulator
  ...
2019-09-16 13:58:43 -07:00
Linus Torvalds
0372fd1a70 regmap: Updates for v5.4
Only two changes for this release, one fix for error handling with
 runtime PM and a change from Greg removing error handling from debugfs
 API calls now that they implement user visible error reporting.
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Merge tag 'regmap-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "Only two changes for this release, one fix for error handling with
  runtime PM and a change from Greg removing error handling from debugfs
  API calls now that they implement user visible error reporting"

* tag 'regmap-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap-irq: Correct error paths in regmap_irq_thread for pm_runtime
  regmap: no need to check return value of debugfs_create functions
2019-09-16 13:57:02 -07:00
Linus Torvalds
6729fb666a hwmon updates for v5.4
New drivers and chip support
 - Add Inspur Power System power supply driver
 - Add Synaptics AS370 PVT sensor driver
 - Add support for SHTC3 to shtc1 driver
 - Add support for NCT6116 to nct6775 driver
 - Add support for AMD family 17h, model 70h CPUs to k10temp driver
 - Add support for PCT2075 to lm75 driver
 
 Removed drivers
 - Remove ads1015 driver (now supported in iio)
 
 Other changes
 - Convert drivers to use devm_i2c_new_dummy_device
 - Substantial structural improvements in lm75 driver
   Add support for writing sample interval for supported chips
 - Add support for PSU version 2 to ibm-cffps driver
 - Add support for power attribute to iio_hwmon bridge
 - Add support for additional fan, voltage and temperature attributes
   to nct7904 driver
 - Convert adt7475 driver to use hwmon_device_register_with_groups()
 - Convert k8temp driver to use hwmon_device_register_with_info()
 - Various other improvements and minor fixes
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Merge tag 'hwmon-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "New drivers:
   - Inspur Power System power supply driver
   - Synaptics AS370 PVT sensor driver

  Chip support:
   - support SHTC3 in shtc1 driver
   - support NCT6116 in nct6775 driver
   - support AMD family 17h, model 70h CPUs in k10temp driver
   - support PCT2075 in lm75 driver

  Removed drivers:
   - ads1015 driver (now supported in iio)

  Other changes:
   - Convert drivers to use devm_i2c_new_dummy_device
   - Substantial structural improvements in lm75 driver adding support
     for writing sample interval for supported chips
   - Add support for PSU version 2 to ibm-cffps driver
   - Add support for power attribute to iio_hwmon bridge
   - Add support for additional fan, voltage and temperature attributes
     to nct7904 driver
   - Convert adt7475 driver to use hwmon_device_register_with_groups()
   - Convert k8temp driver to use hwmon_device_register_with_info()
   - Various other improvements and minor fixes"

* tag 'hwmon-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (48 commits)
  hwmon: submitting-patches: Add note on comment style
  hwmon: submitting-patches: Point to with_info API
  hwmon: (nct7904) Fix incorrect SMI status register setting of LTD temperature and fan.
  hwmon: (shtc1) add support for the SHTC3 sensor
  hwmon: (shtc1) fix shtc1 and shtw1 id mask
  hwmon: (lm75) Aproximate sample times to data-sheet values
  hwmon: (w83793d) convert to use devm_i2c_new_dummy_device
  hwmon: (w83792d) convert to use devm_i2c_new_dummy_device
  hwmon: (w83791d) convert to use devm_i2c_new_dummy_device
  hwmon: (as370-hwmon) fix devm_platform_ioremap_resource.cocci warnings
  hwmon: (lm75) Add support for writing sampling period on PCT2075
  hwmon: (lm75) Add support for writing conversion time for TMP112
  hwmon: (lm75) Move updating the sample interval to its own function
  hwmon: (lm75) Support configuring the sample time for various chips
  hwmon: (nct7904) Fix incorrect temperature limitation register setting of LTD.
  hwmon: (as370-hwmon) Add DT bindings for Synaptics AS370 PVT
  hwmon: Add Synaptics AS370 PVT sensor driver
  pmbus: (ibm-cffps) Add support for version 2 of the PSU
  dt-bindings: hwmon: Document ibm,cffps2 compatible string
  hwmon: (iio_hwmon) Enable power exporting from IIO
  ...
2019-09-16 13:44:16 -07:00
Linus Torvalds
8e97be2acd Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS updates from Borislav Petkov:
 "The latest meager RAS updates:

   - Enable processing of action-optional MCEs which have the Overflow
     bit set (Tony Luck)

   - -Wmissing-prototypes warning fix and a build fix (Valdis
     Klētnieks)"

* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  RAS: Build debugfs.o only when enabled in Kconfig
  RAS: Fix prototype warnings
  x86/mce: Don't check for the overflow bit on action optional machine checks
2019-09-16 13:42:25 -07:00
Linus Torvalds
ff881842e1 * EDAC tree has three maintainers and one new designated reviewer now,
so that the work can scale better.
 
 * New driver for Mellanox' BlueField SoC DDR controller	(Shravan Kumar Ramani)
 
 * AMD Rome support in amd64_edac (Yazen Ghannam and Isaac Vaughn)
 
 * Misc fixes, cleanups and code improvements
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Merge tag 'edac_for_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC updates from Borislav Petkov:
 "The new thing this time around is that we have three maintainers now
  and a new, old repo. New because it is new for the EDAC tree which is
  hosted there from now on and old because it is Tony's and mine's old
  RAS repo which we still use occasionally when the stuff isn't in tip.

  Summary:

   -  EDAC tree has three maintainers and one new designated reviewer
      now, so that the work can scale better.

   -  New driver for Mellanox' BlueField SoC DDR controller (Shravan
      Kumar Ramani)

   -  AMD Rome support in amd64_edac (Yazen Ghannam and Isaac Vaughn)

   -  Misc fixes, cleanups and code improvements"

* tag 'edac_for_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/amd64: Add PCI device IDs for family 17h, model 70h
  MAINTAINERS: Add Robert as a EDAC reviewer
  EDAC/mc_sysfs: Make debug messages consistent
  EDAC/mc_sysfs: Remove pointless gotos
  EDAC: Prefer 'unsigned int' to bare use of 'unsigned'
  EDAC/amd64: Support asymmetric dual-rank DIMMs
  EDAC/amd64: Cache secondary Chip Select registers
  EDAC/amd64: Decode syndrome before translating address
  EDAC/amd64: Find Chip Select memory size using Address Mask
  EDAC/amd64: Initialize DIMM info for systems with more than two channels
  EDAC/amd64: Recognize DRAM device type ECC capability
  EDAC/amd64: Support more than two controllers for chip selects handling
  EDAC/mc: Cleanup _edac_mc_free() code
  EDAC, pnd2: Fix ioremap() size in dnv_rd_reg()
  EDAC, mellanox: Add ECC support for BlueField DDR4
  EDAC/altera: Use the proper type for the IRQ status bits
  EDAC/mc: Fix grain_bits calculation
  edac: altera: Move Stratix10 SDRAM ECC to peripheral
  MAINTAINERS: update EDAC entry to reflect current tree and maintainers
2019-09-16 13:38:45 -07:00
Linus Torvalds
a7bd4bcf13 tpmdd updates for Linux v5.4
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Merge tag 'tpmdd-next-20190902' of git://git.infradead.org/users/jjs/linux-tpmdd

Pull tpm updates from Jarkko Sakkinen:
 "A new driver for fTPM living inside ARM TEE was added this round.

  In addition to that, there are three bug fixes and one clean up"

* tag 'tpmdd-next-20190902' of git://git.infradead.org/users/jjs/linux-tpmdd:
  tpm/tpm_ftpm_tee: Document fTPM TEE driver
  tpm/tpm_ftpm_tee: A driver for firmware TPM running inside TEE
  tpm: Remove a deprecated comments about implicit sysfs locking
  tpm_tis_core: Set TPM_CHIP_FLAG_IRQ before probing for interrupts
  tpm_tis_core: Turn on the TPM before probing IRQ's
  MAINTAINERS: fix style in KEYS-TRUSTED entry
2019-09-16 13:34:04 -07:00
David S. Miller
990925fad5 Merge branch 'mlxsw-spectrum_buffers-Add-the-ability-to-query-the-CPU-ports-shared-buffer'
Ido Schimmel says:

====================
mlxsw: spectrum_buffers: Add the ability to query the CPU port's shared buffer

Shalom says:

While debugging packet loss towards the CPU, it is useful to be able to
query the CPU port's shared buffer quotas and occupancy.

Patch #1 prevents changing the CPU port's threshold and binding.

Patch #2 registers the CPU port with devlink.

Patch #3 adds the ability to query the CPU port's shared buffer quotas and
occupancy.

v3:

Patch #2:
* Remove unnecessary wrapping

v2:

Patch #1:
* s/0/MLXSW_PORT_CPU_PORT/
* Assign "mlxsw_sp->ports[MLXSW_PORT_CPU_PORT]" at the end of
  mlxsw_sp_cpu_port_create() to avoid NULL assignment on error path
* Add common functions for mlxsw_core_port_init/fini()

Patch #2:
* Move "changing CPU port's threshold and binding" check to a separate
  patch
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:07:59 +02:00
Shalom Toledo
a759ab6dac mlxsw: spectrum_buffers: Add the ability to query the CPU port's shared buffer
While debugging packet loss towards the CPU, it is useful to be able to
query the CPU port's shared buffer quotas and occupancy.

Since the CPU port has no ingress buffers, all the shared buffers ingress
information will be cleared.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:07:59 +02:00
Shalom Toledo
28b1987ef5 mlxsw: spectrum: Register CPU port with devlink
Register CPU port with devlink.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:07:59 +02:00
Shalom Toledo
9d0aa053ea mlxsw: spectrum_buffers: Prevent changing CPU port's configuration
Next patch is going to register the CPU port with devlink, but only so
that the CPU port's shared buffer configuration and occupancy could be
queried.

Prevent changing CPU port's shared buffer threshold and binding
configuration.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:07:59 +02:00
David S. Miller
b63e1a02d7 Merge branch 'net-ena-implement-adaptive-interrupt-moderation-using-dim'
Arthur Kiyanovski says:

====================
net: ena: implement adaptive interrupt moderation using dim

In this patchset we replace our adaptive interrupt moderation
implementation with the dim library implementation.
The dim library showed great improvement in throughput, latency
and CPU usage in different scenarios on ARM CPUs.
This patchset also includes a few bug fixes to the parts of the
old implementation of adaptive interrupt moderation that were left.

Changes from V1 patchset:
Removed stray empty lines from patches 01/11, 09/11.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:06:03 +02:00
Arthur Kiyanovski
79226cea4a net: ena: fix incorrect update of intr_delay_resolution
ena_dev->intr_moder_rx/tx_interval save the intervals received from the
user after dividing them by ena_dev->intr_delay_resolution. Therefore
when intr_delay_resolution changes, the code needs to first mutiply
intr_moder_rx/tx_interval by the previous intr_delay_resolution to get
the value originally given by the user, and only then divide it by the
new intr_delay_resolution.

Current code does not first multiply intr_moder_rx/tx_interval by the old
intr_delay_resolution. This commit fixes it.

Also initialize ena_dev->intr_delay_resolution to be 1.

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:06:03 +02:00
Arthur Kiyanovski
0eda847953 net: ena: fix retrieval of nonadaptive interrupt moderation intervals
Nonadaptive interrupt moderation intervals are assigned the value set
by the user in ethtool -C divided by ena_dev->intr_delay_resolution.

Therefore when the user tries to get the nonadaptive interrupt moderation
intervals with ethtool -c the code needs to multiply the saved value
by ena_dev->intr_delay_resolution.

The current code erroneously divides instead of multiplying in ethtool -c.
This patch fixes this.

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:06:02 +02:00
Arthur Kiyanovski
7b8a28787e net: ena: fix update of interrupt moderation register
Current implementation always updates the interrupt register with
the smoothed_interval of the rx_ring. However this should be
done only in case of adaptive interrupt moderation. If non-adaptive
interrupt moderation is used, the non-adaptive interrupt moderation
interval should be used. This commit fixes that.

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:06:02 +02:00
Arthur Kiyanovski
3ced8cbdf7 net: ena: remove all old adaptive rx interrupt moderation code from ena_com
Remove previous implementation of adaptive rx interrupt moderation
from ena_com files.

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:06:02 +02:00
Arthur Kiyanovski
64d1fb9dfc net: ena: remove ena_restore_ethtool_params() and relevant fields
Deleted unused 4 fields from struct ena_adapter and their only user
ena_restore_ethtool_params().

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:06:02 +02:00
Arthur Kiyanovski
242d81fd3d net: ena: remove old adaptive interrupt moderation code from ena_netdev
1. Out of the fields {per_napi_bytes, per_napi_packets} in struct ena_ring,
   only rx_ring->per_napi_packets are used to determine if napi did work
   for dim.
   This commit removes all other uses of these fields.
2. Remove ena_ring->moder_tbl_idx, which is not used by dim.
3. Remove all calls to ena_com_destroy_interrupt_moderation(), since all it
   did was to destroy the interrupt moderation table, which is removed as
   part of removing old interrupt moderation code.

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:06:02 +02:00
Arthur Kiyanovski
57e3a5f24b net: ena: remove code duplication in ena_com_update_nonadaptive_moderation_interval _*()
Remove code duplication in:
ena_com_update_nonadaptive_moderation_interval_tx()
ena_com_update_nonadaptive_moderation_interval_rx()
functions.

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:06:02 +02:00
Arthur Kiyanovski
bd21b0cc3a net: ena: enable the interrupt_moderation in driver_supported_features
Add driver_supported_features to host_host info which is a new API used to
communicate to the device which features are supported by the driver.

Add the interrupt_moderation bit to host_info->driver_supported_features
and enable it to signal the device that this driver supports interrupt
moderation properly.

Reserved bits are for features implemented in the future

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:06:02 +02:00
Arthur Kiyanovski
b3db86dc4b net: ena: reimplement set/get_coalesce()
1. Remove old adaptive interrupt moderation code from set/get_coalesce()
2. Add ena_update_rx_rings_intr_moderation() function for updating
   nonadaptive interrupt moderation intervals similarly to
   ena_update_tx_rings_intr_moderation().
3. Remove checks of multiple unsupported received interrupt coalescing
   parameters. This makes code cleaner and cancels the need to update
   it every time a new coalescing parameter is invented.

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:06:02 +02:00
Arthur Kiyanovski
282faf61a0 net: ena: switch to dim algorithm for rx adaptive interrupt moderation
Use the dim library for the rx adaptive interrupt moderation implementation

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:06:02 +02:00
Arthur Kiyanovski
15619e722b net: ena: add intr_moder_rx_interval to struct ena_com_dev and use it
Add intr_moder_rx_interval to struct ena_com_dev and use it as the
location where the interrupt moderation rx interval is saved, instead
of the interrupt moderation table.

This is done as a first step before removing the old interrupt moderation
code.

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:06:02 +02:00
David S. Miller
1b8da10370 Merge branch 'ethtool-implement-Energy-Detect-Powerdown-support-via-phy-tunable'
Alexandru Ardelean says:

====================
ethtool: implement Energy Detect Powerdown support via phy-tunable

This changeset proposes a new control for PHY tunable to control Energy
Detect Power Down.

The `phy_tunable_id` has been named `ETHTOOL_PHY_EDPD` since it looks like
this feature is common across other PHYs (like EEE), and defining
`ETHTOOL_PHY_ENERGY_DETECT_POWER_DOWN` seems too long.

The way EDPD works, is that the RX block is put to a lower power mode,
except for link-pulse detection circuits. The TX block is also put to low
power mode, but the PHY wakes-up periodically to send link pulses, to avoid
lock-ups in case the other side is also in EDPD mode.

Currently, there are 2 PHY drivers that look like they could use this new
PHY tunable feature: the `adin` && `micrel` PHYs.

This series updates only the `adin` PHY driver to support this new feature,
as this chip has been tested. A change for `micrel` can be proposed after a
discussion of the PHY-tunable API is resolved.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:02:53 +02:00
Alexandru Ardelean
65d7be094f net: phy: adin: implement Energy Detect Powerdown mode via phy-tunable
This driver becomes the first user of the kernel's `ETHTOOL_PHY_EDPD`
phy-tunable feature.
EDPD is also enabled by default on PHY config_init, but can be disabled via
the phy-tunable control.

When enabling EDPD, it's also a good idea (for the ADIN PHYs) to enable TX
periodic pulses, so that in case the other PHY is also on EDPD mode, there
is no lock-up situation where both sides are waiting for the other to
transmit.

Via the phy-tunable control, TX pulses can be disabled if specifying 0
`tx-interval` via ethtool.

The ADIN PHY supports only fixed 1 second intervals; they cannot be
configured. That is why the acceptable values are 1,
ETHTOOL_PHY_EDPD_DFLT_TX_MSECS and ETHTOOL_PHY_EDPD_NO_TX (which disables
TX pulses).

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:02:45 +02:00
Alexandru Ardelean
9f2f13f4ff ethtool: implement Energy Detect Powerdown support via phy-tunable
The `phy_tunable_id` has been named `ETHTOOL_PHY_EDPD` since it looks like
this feature is common across other PHYs (like EEE), and defining
`ETHTOOL_PHY_ENERGY_DETECT_POWER_DOWN` seems too long.

The way EDPD works, is that the RX block is put to a lower power mode,
except for link-pulse detection circuits. The TX block is also put to low
power mode, but the PHY wakes-up periodically to send link pulses, to avoid
lock-ups in case the other side is also in EDPD mode.

Currently, there are 2 PHY drivers that look like they could use this new
PHY tunable feature: the `adin` && `micrel` PHYs.

The ADIN's datasheet mentions that TX pulses are at intervals of 1 second
default each, and they can be disabled. For the Micrel KSZ9031 PHY, the
datasheet does not mention whether they can be disabled, but mentions that
they can modified.

The way this change is structured, is similar to the PHY tunable downshift
control:
* a `ETHTOOL_PHY_EDPD_DFLT_TX_MSECS` value is exposed to cover a default
  TX interval; some PHYs could specify a certain value that makes sense
* `ETHTOOL_PHY_EDPD_NO_TX` would disable TX when EDPD is enabled
* `ETHTOOL_PHY_EDPD_DISABLE` will disable EDPD

As noted by the `ETHTOOL_PHY_EDPD_DFLT_TX_MSECS` the interval unit is 1
millisecond, which should cover a reasonable range of intervals:
 - from 1 millisecond, which does not sound like much of a power-saver
 - to ~65 seconds which is quite a lot to wait for a link to come up when
   plugging a cable

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 22:02:45 +02:00
Dongli Zhang
00b368502d xen-netfront: do not assume sk_buff_head list is empty in error handling
When skb_shinfo(skb) is not able to cache extra fragment (that is,
skb_shinfo(skb)->nr_frags >= MAX_SKB_FRAGS), xennet_fill_frags() assumes
the sk_buff_head list is already empty. As a result, cons is increased only
by 1 and returns to error handling path in xennet_poll().

However, if the sk_buff_head list is not empty, queue->rx.rsp_cons may be
set incorrectly. That is, queue->rx.rsp_cons would point to the rx ring
buffer entries whose queue->rx_skbs[i] and queue->grant_rx_ref[i] are
already cleared to NULL. This leads to NULL pointer access in the next
iteration to process rx ring buffer entries.

Below is how xennet_poll() does error handling. All remaining entries in
tmpq are accounted to queue->rx.rsp_cons without assuming how many
outstanding skbs are remained in the list.

 985 static int xennet_poll(struct napi_struct *napi, int budget)
... ...
1032           if (unlikely(xennet_set_skb_gso(skb, gso))) {
1033                   __skb_queue_head(&tmpq, skb);
1034                   queue->rx.rsp_cons += skb_queue_len(&tmpq);
1035                   goto err;
1036           }

It is better to always have the error handling in the same way.

Fixes: ad4f15dc2c ("xen/netfront: don't bug in case of too many frags")
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 21:46:22 +02:00
Markus Elfring
56a4e37ef1 s390/ctcm: Delete unnecessary checks before the macro call “dev_kfree_skb”
The dev_kfree_skb() function performs also input parameter validation.
Thus the test around the shown calls is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 21:45:32 +02:00
Sameeh Jubran
a53651ec93 net: ena: don't wake up tx queue when down
There is a race condition that can occur when calling ena_down().
The ena_clean_tx_irq() - which is a part of the napi handler -
function might wake up the tx queue when the queue is supposed
to be down (during recovery or changing the size of the queues
for example) This causes the ena_start_xmit() function to trigger
and possibly try to access the destroyed queues.

The race is illustrated below:

Flow A:                                       Flow B(napi handler)
ena_down()
   netif_carrier_off()
   netif_tx_disable()
                                                      ena_clean_tx_irq()
                                                         netif_tx_wake_queue()
   ena_napi_disable_all()
   ena_destroy_all_io_queues()

After these flows the tx queue is active and ena_start_xmit() accesses
the destroyed queue which leads to a kernel panic.

fixes: 1738cd3ed3 (net: ena: Add a driver for Amazon Elastic Network Adapters (ENA))

Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 21:40:18 +02:00
David S. Miller
f432c2e304 Merge branch 'drop_monitor-Better-sanitize-notified-packets'
Ido Schimmel says:

====================
drop_monitor: Better sanitize notified packets

When working in 'packet' mode, drop monitor generates a notification
with a potentially truncated payload of the dropped packet. The payload
is copied from the MAC header, but I forgot to check that the MAC header
was set, so do it now.

Patch #1 sets the offsets to the various protocol layers in netdevsim,
so that it will continue to work after the MAC header check is added to
drop monitor in patch #2.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 21:39:27 +02:00
Ido Schimmel
bef1746681 drop_monitor: Better sanitize notified packets
When working in 'packet' mode, drop monitor generates a notification
with a potentially truncated payload of the dropped packet. The payload
is copied from the MAC header, but I forgot to check that the MAC header
was set, so do it now.

Fixes: ca30707dee ("drop_monitor: Add packet alert mode")
Fixes: 5e58109b1e ("drop_monitor: Add support for packet alert mode for hardware drops")
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 21:39:27 +02:00
Ido Schimmel
58a406def4 netdevsim: Set offsets to various protocol layers
The driver periodically generates "trapped" UDP packets that it then
passes on to devlink. Set the offsets to the various protocol layers.

This is a prerequisite to the next patch, where drop monitor is taught
to check that the offset to the MAC header was set.

Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-16 21:39:27 +02:00