Commit Graph

809176 Commits

Author SHA1 Message Date
Linus Torvalds
fcf010449e Merge tag 'kgdb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux
Pull kgdb updates from Daniel Thompson:
 "Mostly clean ups although while Doug's was chasing down a odd lockdep
  warning he also did some work to improved debugger resilience when
  some CPUs fail to respond to the round up request.

  The main changes are:

   - Fixing a lockdep warning on architectures that cannot use an NMI
     for the round up plus related changes to make CPU round up and all
     CPU backtrace more resilient.

   - Constify the arch ops tables

   - A couple of other small clean ups

  Two of the three patchsets here include changes that spill over into
  arch/. Changes in the arch space are relatively narrow in scope (and
  directly related to kgdb). Didn't get comprehensive acks but all
  impacted maintainers were Cc:ed in good time"

* tag 'kgdb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
  kgdb/treewide: constify struct kgdb_arch arch_kgdb_ops
  mips/kgdb: prepare arch_kgdb_ops for constness
  kdb: use bool for binary state indicators
  kdb: Don't back trace on a cpu that didn't round up
  kgdb: Don't round up a CPU that failed rounding up before
  kgdb: Fix kgdb_roundup_cpus() for arches who used smp_call_function()
  kgdb: Remove irq flags from roundup
2019-01-01 15:38:14 -08:00
Linus Torvalds
fbea8c7c79 Merge tag 'for-linus' of git://github.com/openrisc/linux
Pull OpenRISC update from Stafford Horne:
 "Just one change for 4.21: Update comments for name change or32 -> or1k
  from Geert Uytterhoeven"

* tag 'for-linus' of git://github.com/openrisc/linux:
  openrisc: Fix broken paths to arch/or32
2019-01-01 15:35:55 -08:00
Linus Torvalds
28e8c4bc8e Merge tag 'rtc-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
 "Subsystem:
   - new %ptR printk format
   - rename core files
   - allow registration of multiple nvmem devices

  New driver:
   - i.MX system controller RTC

  Driver updates:
   - abx80x: handle voltage ioctls, correct binding doc
   - m41t80: correct month in alarm reads
   - pcf85363: add pcf85263 support
   - pcf8523: properly handle battery low flag
   - s3c: limit alarm to one year in the future as ALMYEAR is broken
   - sun6i: rework clock output binding"

* tag 'rtc-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (54 commits)
  rtc: rename core files
  rtc: nvmem: fix possible use after free
  rtc: add i.MX system controller RTC support
  dt-bindings: fsl: scu: add rtc binding
  rtc: pcf2123: Add Microcrystal rv2123
  rtc: class: reimplement devm_rtc_device_register
  rtc: enforce rtc_timer_init private_data type
  rtc: abx80x: Implement RTC_VL_READ,CLR ioctls
  rtc: pcf85363: Add support for NXP pcf85263 rtc
  dt-bindings: rtc: pcf85363: Document pcf85263 real-time clock
  rtc: pcf8523: don't return invalid date when battery is low
  dt-bindings: rtc: use a generic node name for ds1307
  PM: Switch to use %ptR
  m68k/mac: Switch to use %ptR
  Input: hp_sdc_rtc - Switch to use %ptR
  rtc: tegra: Switch to use %ptR
  rtc: s5m: Switch to use %ptR
  rtc: s3c: Switch to use %ptR
  rtc: rx8025: Switch to use %ptR
  rtc: rx6110: Switch to use %ptR
  ...
2019-01-01 13:24:31 -08:00
Linus Torvalds
c9bef4a651 Merge tag 'pinctrl-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
 "We have no core changes but lots of incremental development in drivers
  all over the place: Renesas, NXP, Mediatek and Actions Semiconductor
  keep churning out new SoCs.

  I have some subtree maintainers for Renesas and Intel helping out to
  keep down the load, it's been working smoothly (Samsung also have a
  subtree but it was not used this cycle.)

  New drivers:

   - NXP (ex Freescale) i.MX 8 QXP SoC driver.

   - Mediatek MT6797 SoC driver.

   - Mediatek MT7629 SoC driver.

   - Actions Semiconductor S700 SoC driver.

   - Renesas RZ/A2 SoC driver.

   - Allwinner sunxi suniv F1C100 SoC driver.

   - Qualcomm PMS405 PMIC driver.

   - Microsemi Ocelot Jaguar2 SoC driver.

  Improvements:

   - Some RT improvements (using raw spinlocks where appropriate).

   - A lot of new pin sets on the Renesas PFC pin controllers.

   - GPIO hogs now work on the Qualcomm SPMI/SSBI pin controller GPIO
     chips, and Xway.

   - Major modernization of the Intel pin control drivers.

   - STM32 pin control driver will now synchronize usage of pins with
     another CPU using a hardware spinlock"

* tag 'pinctrl-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (145 commits)
  dt-bindings: arm: fsl-scu: add imx8qm pinctrl support
  pinctrl: freescale: Break dependency on SOC_IMX8MQ for i.MX8MQ
  pinctrl: imx-scu: Depend on IMX_SCU
  pinctrl: ocelot: Add dependency on HAS_IOMEM
  pinctrl: ocelot: add MSCC Jaguar2 support
  pinctrl: bcm: ns: support updated DT binding as syscon subnode
  dt-bindings: pinctrl: bcm4708-pinmux: rework binding to use syscon
  MAINTAINERS: merge at91 pinctrl entries
  pinctrl: imx8qxp: break the dependency on SOC_IMX8QXP
  pinctrl: uniphier: constify uniphier_pinctrl_socdata
  pinctrl: mediatek: improve Kconfig dependencies
  pinctrl: msm: mark PM functions as __maybe_unused
  dt-bindings: pinctrl: sunxi: Add supply properties
  pinctrl: meson: meson8b: add the missing GPIO_GROUPs for BOOT and CARD
  pinctrl: meson: meson8: add the missing GPIO_GROUPs for BOOT and CARD
  pinctrl: meson: meson8: rename the "gpio" function to "gpio_periphs"
  pinctrl: meson: meson8: rename the "gpio" function to "gpio_periphs"
  pinctrl: meson: meson8b: fix the GPIO function for the GPIOAO pins
  pinctrl: meson: meson8: fix the GPIO function for the GPIOAO pins
  pinctrl: sh-pfc: Make pinmux_cfg_reg.var_field_width[] variable-length
  ...
2019-01-01 13:19:16 -08:00
Linus Torvalds
115502a6f3 Merge tag 'linux-watchdog-4.21-rc1' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
 - add TQ-Systems TQMX86 watchdog driver
 - add Qualcomm PM8916 watchdog driver
 - w83627hf_wdt: add quirk for Inves system
 - renesas_wdt: several improvements and document r8a774c0 support
 - mena21_wdt, mtx-1: Convert to use GPIO descriptor
 - bcm281xx, ie6xx_wdt: convert to DEFINE_SHOW_ATTRIBUTE
 - documentation: add PM usage and kernel-api: don't reference removed functions
 - update bindings for MT7629 SoC
 - several small fixes

* tag 'linux-watchdog-4.21-rc1' of git://www.linux-watchdog.org/linux-watchdog: (22 commits)
  watchdog: tqmx86: Add watchdog driver for the IO controller
  dt-bindings: watchdog: renesas-wdt: Document r8a774c0 support
  watchdog: docs: kernel-api: don't reference removed functions
  watchdog: add documentation for PM usage
  watchdog: mtx-1: Convert to use GPIO descriptor
  watchdog: mena21_wdt: Convert to GPIO descriptors
  dt-bindings: watchdog: Add Qualcomm PM8916 watchdog
  watchdog: Add pm8916 watchdog driver
  dt-bindings: watchdog: update bindings for MT7629 SoC
  watchdog: renesas_wdt: don't keep timer value during suspend/resume
  watchdog: ie6xx_wdt: convert to DEFINE_SHOW_ATTRIBUTE
  watchdog: bcm281xx: convert to DEFINE_SHOW_ATTRIBUTE
  watchdog: asm9260_wdt: make array mode_name static, shrinks object size
  watchdog/hpwdt: Update driver version.
  watchdog/hpwdt: Do not claim unsupported hardware
  watchdog/hpwdt: Exclude via blacklist
  Watchdog: remove outdated comment
  watchdog: w83627hf_wdt: Add quirk for Inves system
  watchdog: cpwd: add of_node_put()
  watchdog: renesas_wdt: don't set divider while watchdog is running
  ...
2019-01-01 13:16:45 -08:00
Eric Biggers
57b0e31453 KEYS: fix parsing invalid pkey info string
We need to check the return value of match_token() for Opt_err before
doing anything with it.

[ Not only did the old "-1" value for Opt_err cause problems for the
  __test_and_set_bit(), as fixed in commit 94c13f66e1 ("security:
  don't use a negative Opt_err token index"), but accessing
  "args[0].from" is invalid for the Opt_err case, as pointed out by Eric
  later.  - Linus ]

Reported-by: syzbot+a22e0dc07567662c50bc@syzkaller.appspotmail.com
Fixes: 00d60fd3b9 ("KEYS: Provide keyctls to drive the new key type ops for asymmetric keys [ver #2]")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Cc: stable@kernel.org # 4.20
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-01 13:13:19 -08:00
Linus Torvalds
e1ef035d27 Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC defconfig updates from Olof Johansson:
 "Most changes here are to enable new drivers and platforms in the
  various configs that affect them. Most of these have been covered and
  described in the other branches, we mostly keep defconfig separate to
  avoid conflicts between SoC/dt/driver updates that they otherwise
  would be grouped with.

  One thing worth mentioning here is that OMAP changes from using their
  own UART driver, to 8250, for the multi_v7_defconfig shared config on
  32-bit. This means that the console is now named ttyS* instead of
  ttyO*. This change was already done for omap2_defconfig a while back,
  so most users of these configs have either already updated, or can
  easily follow the same patterns as they did at that time. This makes
  platform support slightly easier for distros, since they no longer
  need to keep track of a separate console prefix for these platforms"

* tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
  Revert "arm64: defconfig: Enable FSL_MC_BUS and FSL_MC_DPIO"
  arm64: defconfig: Enable FSL_MC_BUS and FSL_MC_DPIO
  arm64: defconfig: Replace PINCTRL_MT7622 with PINCTRL_MTK_MOORE
  arm64: defconfig: Regenerate for v4.20
  ARM: multi_v7_defconfig: Add TOSHIBA TC358764 bridge driver
  ARM: multi_v7_defconfig: Add MAX8952 regulator driver
  ARM: exynos_defconfig: Add TOSHIBA TC358764 bridge driver
  ARM: exynos_defconfig: Add MAX8952 regulator driver
  ARM: exynos_defconfig: Add MAX8998 RTC and charger drivers
  ARM: imx_v6_v7_defconfig: add imx7ulp support
  ARM: imx_v6_v7_defconfig: Select TOUCHSCREEN_GOODIX
  ARM: multi_v7_defconfig: enable STM32 analog & timer drivers
  arm64: defconfig: Enable GCC and PINCTRL for MSM8998
  arm64: defconfig: Enable core Qualcomm SDM845 options
  ARM: defconfig: Enable the PL111 DRM driver on vexpress
  ARM: defconfig: Update the vexpress defconfig
  arm64: defconfig: Enable some qcom remoteproc configs
  arm64: defconfig: Enable QCS404 configs
  ARM: imx_v6_v7_defconfig: Enable USB_ANNOUNCE_NEW_DEVICES
  ARM: imx_v6_v7_defconfig: Enable BT_BNEP
  ...
2018-12-31 17:40:14 -08:00
Linus Torvalds
b7badd1d7a Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM Device-tree updates from Olof Johansson:
 "As usual, this is where the bulk of our changes end up landing each
  merge window.

  The individual updates are too many to enumerate, many many platforms
  have seen additions of device descriptions such that they are
  functionally more complete (in fact, this is often the bulk of updates
  we see).

  Instead I've mostly focused on highlighting the new platforms below as
  they are introduced. Sometimes the introduction is of mostly a
  fragment, that later gets filled in on later releases, and in some
  cases it's near-complete platform support. The latter is more common
  for derivative platforms that already has similar support in-tree.

  Two SoCs are slight outliers from the usual range of additions.
  Allwinner support for F1C100s, a quite old SoC (ARMv5-based) shipping
  in the Lychee Pi Nano platform. At the other end is NXP Layerscape
  LX2160A, a 16-core 2.2GHz Cortex-A72 SoC with a large amount of I/O
  aimed at infrastructure/networking.

  TI updates stick out in the diff stats too, in particular because they
  have moved the description of their L4 on-chip interconnect to
  devicetree, which opens up for removal of even more of their
  platform-specific 'hwmod' description tables over the next few
  releases.

  SoCs:
   - Qualcomm QCS404 (4x Cortex-A53)
   - Allwinner T3 (rebranded R40) and f1c100s (armv5)
   - NXP i.MX7ULP (1x Cortex-A7 + 1x Cortex-M4)
   - NXP LS1028A (2x Cortex-A72), LX2160A (16x Cortex-A72)

  New platforms:
   - Rockchip: Gru Scarlet (RK3188 Tablet)
   - Amlogic: Phicomm N1 (S905D), Libretech S805-AC
   - Broadcom: Linksys EA6500 v2 Wi-Fi router (BCM4708)
   - Qualcomm: QCS404 base platform and EVB
   - Qualcomm: Remove of Arrow SD600
   - PXA: First PXA3xx DT board: Raumfeld
   - Aspeed: Facebook Backpack-CMM BMC
   - Renesas iWave G20D-Q7 (RZ/G1N)
   - Allwinner t3-cqa3t-bv3 (T3/R40) and Lichee Pi Nano (F1C100s)
   - Allwinner Emlid Neutis N5, Mapleboard MP130
   - Marvell Macchiatobin Single Shot (Armada 8040, no 10GbE)
   - i.MX: mtrion emCON-MX6, imx6ul-pico-pi, imx7d-sdb-reva
   - VF610: Liebherr's BK4 device, ZII SCU4 AIB board
   - i.MX7D PICO Hobbit baseboard
   - i.MX7ULP EVK board
   - NXP LX2160AQDS and LX2160ARDB boards

  Other:
   - Coresight binding updates across the board
   - CPU cooling maps updates across the board"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (648 commits)
  ARM: dts: suniv: Fix improper bindings include patch
  ARM: dts: sunxi: Enable Broadcom-based Bluetooth for multiple boards
  arm64: dts: allwinner: a64: bananapi-m64: Add Bluetooth device node
  ARM: dts: suniv: Fix improper bindings include patch
  arm64: dts: Add spi-[tx/rx]-bus-width for the FSL QSPI controller
  arm64: dts: Remove unused properties from FSL QSPI driver nodes
  ARM: dts: Add spi-[tx/rx]-bus-width for the FSL QSPI controller
  ARM: dts: imx6sx-sdb: Fix the reg properties for the FSL QSPI nodes
  ARM: dts: Remove unused properties from FSL QSPI driver nodes
  arm64: dts: ti: k3-am654: Enable main domain McSPI0
  arm64: dts: ti: k3-am654: Add McSPI DT nodes
  arm64: dts: ti: k3-am654: Populate power-domain property for UART nodes
  arm64: dts: ti: k3-am654-base-board: Enable ECAP PWM
  arm64: dts: ti: k3-am65-main: Add ECAP PWM node
  arm64: dts: ti: k3-am654-base-board: Add I2C nodes
  arm64: dts: ti: am654-base-board: Add pinmux for main uart0
  arm64: dts: ti: k3-am65: Add pinctrl regions
  dt-bindings: pinctrl: k3: Introduce pinmux definitions
  ARM: dts: exynos: Specify I2S assigned clocks in proper node
  ARM: dts: exynos: Add missing CPUs in cooling maps for Odroid X2
  ...
2018-12-31 17:36:02 -08:00
Linus Torvalds
d36377c6eb Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
 "Misc driver updates for platforms, many of them power related.

   - Rockchip adds power domain support for rk3066 and rk3188

   - Amlogic adds a power measurement driver

   - Allwinner adds SRAM support for three platforms (F1C100, H5, A64
     C1)

   - Wakeup and ti-sysc (platform bus) fixes for OMAP/DRA7

   - Broadcom fixes suspend/resume with Thumb2 kernels, and improves
     stability of a handful of firmware/platform interfaces

   - PXA completes their conversion to dmaengine framework

   - Renesas does a bunch of PM cleanups across many platforms

   - Tegra adds support for suspend/resume on T186/T194, which includes
     some driver cleanups and addition of wake events

   - Tegra also adds a driver for memory controller (EMC) on Tegra2

   - i.MX tweaks power domain bindings, and adds support for i.MX8MQ in
     GPC

   - Atmel adds identifiers and LPDDR2 support for a new SoC, SAM9X60

  and misc cleanups across several platforms"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (73 commits)
  ARM: at91: add support in soc driver for new SAM9X60
  ARM: at91: add support in soc driver for LPDDR2 SiP
  memory: omap-gpmc: Use of_node_name_eq for node name comparisons
  bus: ti-sysc: Check for no-reset and no-idle flags at the child level
  ARM: OMAP2+: Check also the first dts child for hwmod flags
  soc: amlogic: meson-clk-measure: Add missing REGMAP_MMIO dependency
  soc: imx: gpc: Increase GPC_CLK_MAX to 7
  soc: renesas: rcar-sysc: Fix power domain control after system resume
  soc: renesas: rcar-sysc: Merge PM Domain registration and linking
  soc: renesas: rcar-sysc: Remove rcar_sysc_power_{down,up}() helpers
  soc: renesas: r8a77990-sysc: Fix initialization order of 3DG-{A,B}
  dt-bindings: sram: sunxi: Add compatible for the A64 SRAM C1
  dt-bindings: sram: sunxi: Add bindings for the H5 with SRAM C1
  dt-bindings: sram: Add Allwinner suniv F1C100s
  soc: sunxi: sram: Add support for the H5 SoC system control
  soc: sunxi: sram: Enable EMAC clock access for H3 variant
  soc: imx: gpcv2: add support for i.MX8MQ SoC
  soc: imx: gpcv2: move register access table to domain data
  soc: imx: gpcv2: prefix i.MX7 specific defines
  dmaengine: pxa: make the filter function internal
  ...
2018-12-31 17:32:35 -08:00
Linus Torvalds
0922275ef1 Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm SoC platform updates from Olof Johansson:
 "SoC updates, mostly refactorings and cleanups of old legacy platforms,
  but also a few more things:

  New SoC support this release:
   - NXP/Freescale i.MX7ULP (1x Cortex-A7, Cortex-M4, graphics, etc)
   - Allwinner F1C100, older platform with an ARM926-EJS (ARMv5) core

  Cleanups of various platforms:
   - OMAP1 ams-delta does some GPIO cleanups
   - Davinci removes of at24 platform data
   - Samsung cleans up old wakeup, PM debug and secondary core boot code
   - Renesas moves around config options and PM code to drivers/soc for
     sharing with 64-bit and more consistency
   - i.MX, Broadcom and SoCFPGA all have tweaks to lowlevel debug
     console setups
   - SoCFPGA adds explicit selection of ARM errata and removes some
     unused code

  This also contains a few patches that I had queued up as fixes for
  4.20 but didn't send in before the release"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (68 commits)
  arm64: dts: renesas: draak: Fix CVBS input
  ARM: omap2: avoid section mismatch warning
  ARM: tegra: avoid section mismatch warning
  ARM: ks8695: fix section mismatch warning
  ARM: pxa: avoid section mismatch warning
  ARM: mmp: fix pxa168_device_usb_phy use on aspenite
  ARM: mmp: fix timer_init calls
  ARM: OMAP1: fix USB configuration for device-only setups
  ARM: OMAP1: add MMC configuration for Palm Tungsten E
  ARM: imx: fix dependencies on imx7ulp
  ARM: meson: select HAVE_ARM_TWD and ARM_GLOBAL_TIMER
  MAINTAINERS: add drivers/soc/amlogic/ to amlogic list
  ARM: imx: add initial support for imx7ulp
  ARM: debug-imx: only define DEBUG_IMX_UART_PORT if needed
  ARM: dts: Fix OMAP4430 SDP Ethernet startup
  ARM: dts: am335x-pdu001: Fix polarity of card detection input
  ARM: OMAP1: ams-delta: Fix audio permanently muted
  ARM: dts: omap5: Fix dual-role mode on Super-Speed port
  arm64: dts: rockchip: fix rk3399-rockpro64 regulator gpios
  ARM: davinci: da850-evm: remove unnecessary include
  ...
2018-12-31 17:27:54 -08:00
Olof Johansson
cac1fc8fb5 Merge branch 'fixes' into next/soc
Merge in fixes here, since the last batch didn't make it in before the
release of 4.20, and we might as well group them with this set of
patches.

* fixes: (822 commits)
  arm64: dts: renesas: draak: Fix CVBS input
  ARM: dts: Fix OMAP4430 SDP Ethernet startup
  ARM: dts: am335x-pdu001: Fix polarity of card detection input
  ARM: OMAP1: ams-delta: Fix audio permanently muted
  ARM: dts: omap5: Fix dual-role mode on Super-Speed port
  arm64: dts: rockchip: fix rk3399-rockpro64 regulator gpios
  ARM: dts: imx7d-nitrogen7: Fix the description of the Wifi clock
  ARM: imx: update the cpu power up timing setting on i.mx6sx
  Revert "arm64: dts: marvell: add CPU Idle power state support on Armada 7K/8K"
  ARM: dts: imx7d-pico: Describe the Wifi clock
  ARM: dts: realview: Fix some more duplicate regulator nodes
  MAINTAINERS: update entry for MMP platform
  ARM: mmp/mmp2: fix cpu_is_mmp2() on mmp2-dt
  MAINTAINERS: mediatek: Update SoC entry
  ARM: dts: bcm2837: Fix polarity of wifi reset GPIOs
  + Linux 4.20-rc5

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-12-31 11:54:03 -08:00
Linus Torvalds
495d714ad1 Merge tag 'trace-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:

 - Rework of the kprobe/uprobe and synthetic events to consolidate all
   the dynamic event code. This will make changes in the future easier.

 - Partial rewrite of the function graph tracing infrastructure. This
   will allow for multiple users of hooking onto functions to get the
   callback (return) of the function. This is the ground work for having
   kprobes and function graph tracer using one code base.

 - Clean up of the histogram code that will facilitate adding more
   features to the histograms in the future.

 - Addition of str_has_prefix() and a few use cases. There currently is
   a similar function strstart() that is used in a few places, but only
   returns a bool and not a length. These instances will be removed in
   the future to use str_has_prefix() instead.

 - A few other various clean ups as well.

* tag 'trace-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (57 commits)
  tracing: Use the return of str_has_prefix() to remove open coded numbers
  tracing: Have the historgram use the result of str_has_prefix() for len of prefix
  tracing: Use str_has_prefix() instead of using fixed sizes
  tracing: Use str_has_prefix() helper for histogram code
  string.h: Add str_has_prefix() helper function
  tracing: Make function ‘ftrace_exports’ static
  tracing: Simplify printf'ing in seq_print_sym
  tracing: Avoid -Wformat-nonliteral warning
  tracing: Merge seq_print_sym_short() and seq_print_sym_offset()
  tracing: Add hist trigger comments for variable-related fields
  tracing: Remove hist trigger synth_var_refs
  tracing: Use hist trigger's var_ref array to destroy var_refs
  tracing: Remove open-coding of hist trigger var_ref management
  tracing: Use var_refs[] for hist trigger reference checking
  tracing: Change strlen to sizeof for hist trigger static strings
  tracing: Remove unnecessary hist trigger struct field
  tracing: Fix ftrace_graph_get_ret_stack() to use task and not current
  seq_buf: Use size_t for len in seq_buf_puts()
  seq_buf: Make seq_buf_puts() null-terminate the buffer
  arm64: Use ftrace_graph_get_ret_stack() instead of curr_ret_stack
  ...
2018-12-31 11:46:59 -08:00
Linus Torvalds
f12e840c81 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha
Pull alpha architecture updates from Matt Turner:
 "A few small changes for alpha as well as the new system call table
  generation support from Firoz Khan"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha:
  alpha: Remove some unused variables
  alpha: rtc: simplify alpha_rtc_init
  alpha: Fix a typo on ptrace.h
  alpha: fix spelling mistake QSD_PORT_ACTUVE -> QSD_PORT_ACTIVE
  alpha: generate uapi header and syscall table header files
  alpha: add system call table generation support
  alpha: add __NR_syscalls along with NR_SYSCALLS
  alpha: remove CONFIG_OSF4_COMPAT flag from syscall table
  alpha: move __IGNORE* entries to non uapi header
2018-12-31 09:57:14 -08:00
Linus Torvalds
e3ed513bcf Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Ingo Molnar:
 "This is a revert for a lockup in cgroups-intense workloads - the real
  fixes will come later"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Fix infinite loop in update_blocked_averages() by reverting a9e7f6544b
2018-12-31 09:54:17 -08:00
Linus Torvalds
2a1a2c1a76 Merge tag 'dax-fix-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull dax fix from Dan Williams:
 "Clean up unnecessary usage of prepare_to_wait_exclusive().

  While I feel a bit silly sending a single-commit pull-request there is
  nothing else queued up for dax this cycle. This change has shipped in
  -next for multiple releases"

* tag 'dax-fix-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  dax: Use non-exclusive wait in wait_entry_unlocked()
2018-12-31 09:46:39 -08:00
Linus Torvalds
9ab97aea85 Merge tag 'f2fs-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
 "In this round, we've focused on bug fixes since Pixel devices have
  been shipping with f2fs. Some of them were related to hardware
  encryption support which are actually not an issue in mainline, but
  would be better to merge them in order to avoid potential bugs.

  Enhancements:
   - do GC sub-sections when the section is large
   - add a flag in ioctl(SHUTDOWN) to trigger fsck for QA
   - use kvmalloc() in order to give another chance to avoid ENOMEM

  Bug fixes:
   - fix accessing memory boundaries in a malformed iamge
   - GC gives stale unencrypted block
   - GC counts in large sections
   - detect idle time more precisely
   - block allocation of DIO writes
   - race conditions between write_begin and write_checkpoint
   - allow GCs for node segments via ioctl()

  There are various clean-ups and minor bug fixes as well"

* tag 'f2fs-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (43 commits)
  f2fs: sanity check of xattr entry size
  f2fs: fix use-after-free issue when accessing sbi->stat_info
  f2fs: check PageWriteback flag for ordered case
  f2fs: fix validation of the block count in sanity_check_raw_super
  f2fs: fix missing unlock(sbi->gc_mutex)
  f2fs: fix to dirty inode synchronously
  f2fs: clean up structure extent_node
  f2fs: fix block address for __check_sit_bitmap
  f2fs: fix sbi->extent_list corruption issue
  f2fs: clean up checkpoint flow
  f2fs: flush stale issued discard candidates
  f2fs: correct wrong spelling, issing_*
  f2fs: use kvmalloc, if kmalloc is failed
  f2fs: remove redundant comment of unused wio_mutex
  f2fs: fix to reorder set_page_dirty and wait_on_page_writeback
  f2fs: clear PG_writeback if IPU failed
  f2fs: add an ioctl() to explicitly trigger fsck later
  f2fs: avoid frequent costly fsck triggers
  f2fs: fix m_may_create to make OPU DIO write correctly
  f2fs: fix to update new block address correctly for OPU
  ...
2018-12-31 09:41:37 -08:00
Alexandre Belloni
36e14f5fdf rtc: rename core files
Rename core files so there is a clearer separation between the RTC core and
the RTC drivers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-12-31 11:36:16 +01:00
Alexandre Belloni
bba3d2daa8 rtc: nvmem: fix possible use after free
In cas of probe failure, devres may free the memory allocated for
rtc->nvram before devm_rtc_release_device() is called. This leads to
rtc_nvram_unregister using it after being freed which may lead to a crash.

This has been shown to happen after commit 461e557b97 ("rtc: nvmem: use
devm_nvmem_register()")

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-12-31 00:49:36 +01:00
Linus Torvalds
c40f7d74c7 sched/fair: Fix infinite loop in update_blocked_averages() by reverting a9e7f6544b
Zhipeng Xie, Xie XiuQi and Sargun Dhillon reported lockups in the
scheduler under high loads, starting at around the v4.18 time frame,
and Zhipeng Xie tracked it down to bugs in the rq->leaf_cfs_rq_list
manipulation.

Do a (manual) revert of:

  a9e7f6544b ("sched/fair: Fix O(nr_cgroups) in load balance path")

It turns out that the list_del_leaf_cfs_rq() introduced by this commit
is a surprising property that was not considered in followup commits
such as:

  9c2791f936 ("sched/fair: Fix hierarchical order in rq->leaf_cfs_rq_list")

As Vincent Guittot explains:

 "I think that there is a bigger problem with commit a9e7f6544b and
  cfs_rq throttling:

  Let take the example of the following topology TG2 --> TG1 --> root:

   1) The 1st time a task is enqueued, we will add TG2 cfs_rq then TG1
      cfs_rq to leaf_cfs_rq_list and we are sure to do the whole branch in
      one path because it has never been used and can't be throttled so
      tmp_alone_branch will point to leaf_cfs_rq_list at the end.

   2) Then TG1 is throttled

   3) and we add TG3 as a new child of TG1.

   4) The 1st enqueue of a task on TG3 will add TG3 cfs_rq just before TG1
      cfs_rq and tmp_alone_branch will stay  on rq->leaf_cfs_rq_list.

  With commit a9e7f6544b, we can del a cfs_rq from rq->leaf_cfs_rq_list.
  So if the load of TG1 cfs_rq becomes NULL before step 2) above, TG1
  cfs_rq is removed from the list.
  Then at step 4), TG3 cfs_rq is added at the beginning of rq->leaf_cfs_rq_list
  but tmp_alone_branch still points to TG3 cfs_rq because its throttled
  parent can't be enqueued when the lock is released.
  tmp_alone_branch doesn't point to rq->leaf_cfs_rq_list whereas it should.

  So if TG3 cfs_rq is removed or destroyed before tmp_alone_branch
  points on another TG cfs_rq, the next TG cfs_rq that will be added,
  will be linked outside rq->leaf_cfs_rq_list - which is bad.

  In addition, we can break the ordering of the cfs_rq in
  rq->leaf_cfs_rq_list but this ordering is used to update and
  propagate the update from leaf down to root."

Instead of trying to work through all these cases and trying to reproduce
the very high loads that produced the lockup to begin with, simplify
the code temporarily by reverting a9e7f6544b - which change was clearly
not thought through completely.

This (hopefully) gives us a kernel that doesn't lock up so people
can continue to enjoy their holidays without worrying about regressions. ;-)

[ mingo: Wrote changelog, fixed weird spelling in code comment while at it. ]

Analyzed-by: Xie XiuQi <xiexiuqi@huawei.com>
Analyzed-by: Vincent Guittot <vincent.guittot@linaro.org>
Reported-by: Zhipeng Xie <xiezhipeng1@huawei.com>
Reported-by: Sargun Dhillon <sargun@sargun.me>
Reported-by: Xie XiuQi <xiexiuqi@huawei.com>
Tested-by: Zhipeng Xie <xiezhipeng1@huawei.com>
Tested-by: Sargun Dhillon <sargun@sargun.me>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Vincent Guittot <vincent.guittot@linaro.org>
Cc: <stable@vger.kernel.org> # v4.13+
Cc: Bin Li <huawei.libin@huawei.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: a9e7f6544b ("sched/fair: Fix O(nr_cgroups) in load balance path")
Link: http://lkml.kernel.org/r/1545879866-27809-1-git-send-email-xiexiuqi@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-12-30 13:54:31 +01:00
Christophe Leroy
cc0282975b kgdb/treewide: constify struct kgdb_arch arch_kgdb_ops
checkpatch.pl reports the following:

  WARNING: struct kgdb_arch should normally be const
  #28: FILE: arch/mips/kernel/kgdb.c:397:
  +struct kgdb_arch arch_kgdb_ops = {

This report makes sense, as all other ops struct, this
one should also be const. This patch does the change.

Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: x86@kernel.org
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30 08:33:06 +00:00
Christophe Leroy
911b7afdeb mips/kgdb: prepare arch_kgdb_ops for constness
MIPS is the only architecture modifying arch_kgdb_ops during init.
This patch makes the init static, so that it can be changed to
const in following patch, as recommended by checkpatch.pl

Suggested-by: Paul Burton <paul.burton@mips.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30 08:31:58 +00:00
Nicholas Mc Guire
7faedcd4de kdb: use bool for binary state indicators
defcmd_in_progress  is the state trace for command group processing
- within a command group or not -  usable  is an indicator if a command
set is valid (allocated/non-empty) - so use a bool for those binary
indication here.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30 08:31:52 +00:00
Douglas Anderson
162bc7f5af kdb: Don't back trace on a cpu that didn't round up
If you have a CPU that fails to round up and then run 'btc' you'll end
up crashing in kdb becaue we dereferenced NULL.  Let's add a check.
It's wise to also set the task to NULL when leaving the debugger so
that if we fail to round up on a later entry into the debugger we
won't backtrace a stale task.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30 08:31:23 +00:00
Douglas Anderson
87b0959285 kgdb: Don't round up a CPU that failed rounding up before
If we're using the default implementation of kgdb_roundup_cpus() that
uses smp_call_function_single_async() we can end up hanging
kgdb_roundup_cpus() if we try to round up a CPU that failed to round
up before.

Specifically smp_call_function_single_async() will try to wait on the
csd lock for the CPU that we're trying to round up.  If the previous
round up never finished then that lock could still be held and we'll
just sit there hanging.

There's not a lot of use trying to round up a CPU that failed to round
up before.  Let's keep a flag that indicates whether the CPU started
but didn't finish to round up before.  If we see that flag set then
we'll skip the next round up.

In general we have a few goals here:
- We never want to end up calling smp_call_function_single_async()
  when the csd is still locked.  This is accomplished because
  flush_smp_call_function_queue() unlocks the csd _before_ invoking
  the callback.  That means that when kgdb_nmicallback() runs we know
  for sure the the csd is no longer locked.  Thus when we set
  "rounding_up = false" we know for sure that the csd is unlocked.
- If there are no timeouts rounding up we should never skip a round
  up.

NOTE #1: In general trying to continue running after failing to round
up CPUs doesn't appear to be supported in the debugger.  When I
simulate this I find that kdb reports "Catastrophic error detected"
when I try to continue.  I can overrule and continue anyway, but it
should be noted that we may be entering the land of dragons here.
Possibly the "Catastrophic error detected" was added _because_ of the
future failure to round up, but even so this is an area of the code
that hasn't been strongly tested.

NOTE #2: I did a bit of testing before and after this change.  I
introduced a 10 second hang in the kernel while holding a spinlock
that I could invoke on a certain CPU with 'taskset -c 3 cat /sys/...".

Before this change if I did:
- Invoke hang
- Enter debugger
- g (which warns about Catastrophic error, g again to go anyway)
- g
- Enter debugger

...I'd hang the rest of the 10 seconds without getting a debugger
prompt.  After this change I end up in the debugger the 2nd time after
only 1 second with the standard warning about 'Timed out waiting for
secondary CPUs.'

I'll also note that once the CPU finished waiting I could actually
debug it (aka "btc" worked)

I won't promise that everything works perfectly if the errant CPU
comes back at just the wrong time (like as we're entering or exiting
the debugger) but it certainly seems like an improvement.

NOTE #3: setting 'kgdb_info[cpu].rounding_up = false' is in
kgdb_nmicallback() instead of kgdb_call_nmi_hook() because some
implementations override kgdb_call_nmi_hook().  It shouldn't hurt to
have it in kgdb_nmicallback() in any case.

NOTE #4: this logic is really only needed because there is no API call
like "smp_try_call_function_single_async()" or "smp_csd_is_locked()".
If such an API existed then we'd use it instead, but it seemed a bit
much to add an API like this just for kgdb.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30 08:29:13 +00:00
Douglas Anderson
3cd99ac355 kgdb: Fix kgdb_roundup_cpus() for arches who used smp_call_function()
When I had lockdep turned on and dropped into kgdb I got a nice splat
on my system.  Specifically it hit:
  DEBUG_LOCKS_WARN_ON(current->hardirq_context)

Specifically it looked like this:
  sysrq: SysRq : DEBUG
  ------------[ cut here ]------------
  DEBUG_LOCKS_WARN_ON(current->hardirq_context)
  WARNING: CPU: 0 PID: 0 at .../kernel/locking/lockdep.c:2875 lockdep_hardirqs_on+0xf0/0x160
  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.0 #27
  pstate: 604003c9 (nZCv DAIF +PAN -UAO)
  pc : lockdep_hardirqs_on+0xf0/0x160
  ...
  Call trace:
   lockdep_hardirqs_on+0xf0/0x160
   trace_hardirqs_on+0x188/0x1ac
   kgdb_roundup_cpus+0x14/0x3c
   kgdb_cpu_enter+0x53c/0x5cc
   kgdb_handle_exception+0x180/0x1d4
   kgdb_compiled_brk_fn+0x30/0x3c
   brk_handler+0x134/0x178
   do_debug_exception+0xfc/0x178
   el1_dbg+0x18/0x78
   kgdb_breakpoint+0x34/0x58
   sysrq_handle_dbg+0x54/0x5c
   __handle_sysrq+0x114/0x21c
   handle_sysrq+0x30/0x3c
   qcom_geni_serial_isr+0x2dc/0x30c
  ...
  ...
  irq event stamp: ...45
  hardirqs last  enabled at (...44): [...] __do_softirq+0xd8/0x4e4
  hardirqs last disabled at (...45): [...] el1_irq+0x74/0x130
  softirqs last  enabled at (...42): [...] _local_bh_enable+0x2c/0x34
  softirqs last disabled at (...43): [...] irq_exit+0xa8/0x100
  ---[ end trace adf21f830c46e638 ]---

Looking closely at it, it seems like a really bad idea to be calling
local_irq_enable() in kgdb_roundup_cpus().  If nothing else that seems
like it could violate spinlock semantics and cause a deadlock.

Instead, let's use a private csd alongside
smp_call_function_single_async() to round up the other CPUs.  Using
smp_call_function_single_async() doesn't require interrupts to be
enabled so we can remove the offending bit of code.

In order to avoid duplicating this across all the architectures that
use the default kgdb_roundup_cpus(), we'll add a "weak" implementation
to debug_core.c.

Looking at all the people who previously had copies of this code,
there were a few variants.  I've attempted to keep the variants
working like they used to.  Specifically:
* For arch/arc we passed NULL to kgdb_nmicallback() instead of
  get_irq_regs().
* For arch/mips there was a bit of extra code around
  kgdb_nmicallback()

NOTE: In this patch we will still get into trouble if we try to round
up a CPU that failed to round up before.  We'll try to round it up
again and potentially hang when we try to grab the csd lock.  That's
not new behavior but we'll still try to do better in a future patch.

Suggested-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30 08:28:02 +00:00
Douglas Anderson
9ef7fa507d kgdb: Remove irq flags from roundup
The function kgdb_roundup_cpus() was passed a parameter that was
documented as:

> the flags that will be used when restoring the interrupts. There is
> local_irq_save() call before kgdb_roundup_cpus().

Nobody used those flags.  Anyone who wanted to temporarily turn on
interrupts just did local_irq_enable() and local_irq_disable() without
looking at them.  So we can definitely remove the flags.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30 08:24:21 +00:00
Linus Torvalds
195303136f Merge tag 'kconfig-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kconfig file consolidation from Masahiro Yamada:
 "Consolidation of bus (PCI, PCMCIA, EISA, RapidIO) config entries by
  Christoph Hellwig.

  Currently, every architecture that wants to provide common peripheral
  busses needs to add some boilerplate code and include the right
  Kconfig files. This series instead just selects the presence (when
  needed) and then handles everything in the bus-specific Kconfig file
  under drivers/"

* tag 'kconfig-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  pcmcia: remove per-arch PCMCIA config entry
  eisa: consolidate EISA Kconfig entry in drivers/eisa
  rapidio: consolidate RAPIDIO config entry in drivers/rapidio
  pcmcia: allow PCMCIA support independent of the architecture
  PCI: consolidate the PCI_SYSCALL symbol
  PCI: consolidate the PCI_DOMAINS and PCI_DOMAINS_GENERIC config options
  PCI: consolidate PCI config entry in drivers/pci
  MIPS: remove the HT_PCI config option
2018-12-29 13:40:29 -08:00
Linus Torvalds
769e47094d Merge tag 'kconfig-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kconfig updates from Masahiro Yamada:

 - support -y option for merge_config.sh to avoid downgrading =y to =m

 - remove S_OTHER symbol type, and touch include/config/*.h files correctly

 - fix file name and line number in lexer warnings

 - fix memory leak when EOF is encountered in quotation

 - resolve all shift/reduce conflicts of the parser

 - warn no new line at end of file

 - make 'source' statement more strict to take only string literal

 - rewrite the lexer and remove the keyword lookup table

 - convert to SPDX License Identifier

 - compile C files independently instead of including them from zconf.y

 - fix various warnings of gconfig

 - misc cleanups

* tag 'kconfig-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (39 commits)
  kconfig: surround dbg_sym_flags with #ifdef DEBUG to fix gconf warning
  kconfig: split images.c out of qconf.cc/gconf.c to fix gconf warnings
  kconfig: add static qualifiers to fix gconf warnings
  kconfig: split the lexer out of zconf.y
  kconfig: split some C files out of zconf.y
  kconfig: convert to SPDX License Identifier
  kconfig: remove keyword lookup table entirely
  kconfig: update current_pos in the second lexer
  kconfig: switch to ASSIGN_VAL state in the second lexer
  kconfig: stop associating kconf_id with yylval
  kconfig: refactor end token rules
  kconfig: stop supporting '.' and '/' in unquoted words
  treewide: surround Kconfig file paths with double quotes
  microblaze: surround string default in Kconfig with double quotes
  kconfig: use T_WORD instead of T_VARIABLE for variables
  kconfig: use specific tokens instead of T_ASSIGN for assignments
  kconfig: refactor scanning and parsing "option" properties
  kconfig: use distinct tokens for type and default properties
  kconfig: remove redundant token defines
  kconfig: rename depends_list to comment_option_list
  ...
2018-12-29 13:03:29 -08:00
Linus Torvalds
668c35f69c Merge tag 'kbuild-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
 "Kbuild core:
   - remove unneeded $(call cc-option,...) switches
   - consolidate Clang compiler flags into CLANG_FLAGS
   - announce the deprecation of SUBDIRS
   - fix single target build for external module
   - simplify the dependencies of 'prepare' stage targets
   - allow fixdep to directly write to .*.cmd files
   - simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS
   - change if_changed_rule to accept multi-line recipe
   - move .SECONDARY special target to scripts/Kbuild.include
   - remove redundant 'set -e'
   - improve parallel execution for CONFIG_HEADERS_CHECK
   - misc cleanups

  Treewide fixes and cleanups
   - set Clang flags correctly for PowerPC boot images
   - fix UML build error with CONFIG_GCC_PLUGINS
   - remove unneeded patterns from .gitignore files
   - refactor firmware/Makefile
   - remove unneeded rules for *offsets.s
   - avoid unneeded regeneration of intermediate .s files
   - clean up ./Kbuild

  Modpost:
   - remove unused -M, -K options
   - fix false positive warnings about section mismatch
   - use simple devtable lookup instead of linker magic
   - misc cleanups

  Coccinelle:
   - relax boolinit.cocci checks for overall consistency
   - fix warning messages of boolinit.cocci

  Other tools:
   - improve -dirty check of scripts/setlocalversion
   - add a tool to generate compile_commands.json from .*.cmd files"

* tag 'kbuild-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (51 commits)
  kbuild: remove unused cmd_gentimeconst
  kbuild: remove $(obj)/ prefixes in ./Kbuild
  treewide: add intermediate .s files to targets
  treewide: remove explicit rules for *offsets.s
  firmware: refactor firmware/Makefile
  firmware: remove unnecessary patterns from .gitignore
  scripts: remove unnecessary ihex2fw and check-lc_ctypes from .gitignore
  um: remove unused filechk_gen_header in Makefile
  scripts: add a tool to produce a compile_commands.json file
  kbuild: add -Werror=implicit-int flag unconditionally
  kbuild: add -Werror=strict-prototypes flag unconditionally
  kbuild: add -fno-PIE flag unconditionally
  scripts: coccinelle: Correct warning message
  scripts: coccinelle: only suggest true/false in files that already use them
  kbuild: handle part-of-module correctly for *.ll and *.symtypes
  kbuild: refactor part-of-module
  kbuild: refactor quiet_modtag
  kbuild: remove redundant quiet_modtag for $(obj-m)
  kbuild: refactor Makefile.asm-generic
  user/Makefile: Fix typo and capitalization in comment section
  ...
2018-12-29 12:03:17 -08:00
NeilBrown
d8372ba8ce lib: don't depend on linux headers being installed.
gen_crc64table requires linux include files to be installed in
/usr/include/linux.  This is a new requrement so hosts that could
previously build the kernel, now cannot.

gen_crc64table makes this requirement by including <linux/swab.h>, but
nothing from that header is actaully used.

So remove the #include, so that the linux headers no longer need to be
installed.

Fixes: feba04fd2c ("lib: add crc64 calculation routines")
Signed-off-by: NeilBrown <neil@brown.name>
Acked-by: Coly Li <colyli@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-12-29 11:36:44 -08:00
Linus Torvalds
3868772b99 Merge tag 'docs-5.0' of git://git.lwn.net/linux
Pull documentation update from Jonathan Corbet:
 "A fairly normal cycle for documentation stuff. We have a new document
  on perf security, more Italian translations, more improvements to the
  memory-management docs, improvements to the pathname lookup
  documentation, and the usual array of smaller fixes.

  As is often the case, there are a few reaches outside of
  Documentation/ to adjust kerneldoc comments"

* tag 'docs-5.0' of git://git.lwn.net/linux: (38 commits)
  docs: improve pathname-lookup document structure
  configfs: fix wrong name of struct in documentation
  docs/mm-api: link slab_common.c to "The Slab Cache" section
  slab: make kmem_cache_create{_usercopy} description proper kernel-doc
  doc:process: add links where missing
  docs/core-api: make mm-api.rst more structured
  x86, boot: documentation whitespace fixup
  Documentation: devres: note checking needs when converting
  doc🇮🇹 add some process/* translations
  doc🇮🇹 fixes in process/1.Intro
  Documentation: convert path-lookup from markdown to resturctured text
  Documentation/admin-guide: update admin-guide index.rst
  Documentation/admin-guide: introduce perf-security.rst file
  scripts/kernel-doc: Fix struct and struct field attribute processing
  Documentation: dev-tools: Fix typos in index.rst
  Correct gen_init_cpio tool's documentation
  Document /proc/pid PID reuse behavior
  Documentation: update path-lookup.md for parallel lookups
  Documentation: Use "while" instead of "whilst"
  dmaengine: Add mailing list address to the documentation
  ...
2018-12-29 11:21:49 -08:00
Linus Torvalds
6f9d71c9c7 Merge branch 'for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:

 - Waiman's cgroup2 cpuset support has been finally merged closing one
   of the last remaining feature gaps.

 - cgroup.procs could show non-leader threads when cgroup2 threaded mode
   was used in certain ways. I forgot to push the fix during the last
   cycle.

 - A patch to fix mount option parsing when all mount options have been
   consumed by someone else (LSM).

 - cgroup_no_v1 boot param can now block named cgroup1 hierarchies too.

* 'for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: Add named hierarchy disabling to cgroup_no_v1 boot param
  cgroup: fix parsing empty mount option string
  cpuset: Remove set but not used variable 'cs'
  cgroup: fix CSS_TASK_ITER_PROCS
  cgroup: Add .__DEBUG__. prefix to debug file names
  cpuset: Minor cgroup2 interface updates
  cpuset: Expose cpuset.cpus.subpartitions with cgroup_debug
  cpuset: Add documentation about the new "cpuset.sched.partition" flag
  cpuset: Use descriptive text when reading/writing cpuset.sched.partition
  cpuset: Expose cpus.effective and mems.effective on cgroup v2 root
  cpuset: Make generate_sched_domains() work with partition
  cpuset: Make CPU hotplug work with partition
  cpuset: Track cpusets that use parent's effective_cpus
  cpuset: Add an error state to cpuset.sched.partition
  cpuset: Add new v2 cpuset.sched.partition flag
  cpuset: Simply allocation and freeing of cpumasks
  cpuset: Define data structures to support scheduling partition
  cpuset: Enable cpuset controller in default hierarchy
  cgroup: remove unnecessary unlikely()
2018-12-29 10:57:20 -08:00
Linus Torvalds
55db91fbaa Merge branch 'for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu
Pull percpu update from Dennis Zhou:
 "Michael Cree noted generic UP Alpha has been broken since v3.18. This
  is a small fix for locking in UP percpu code that fixes the issue"

* 'for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
  percpu: convert spin_lock_irq to spin_lock_irqsave.
2018-12-29 10:13:23 -08:00
Linus Torvalds
9ef1034074 Merge tag 'xtensa-20181228' of git://github.com/jcmvbkbc/linux-xtensa
Pull Xtensa updates from Max Filippov:

 - switch to generated syscall table

 - switch ptrace to regsets, use regsets for core dumps

 - complete tracehook implementation

 - add syscall tracepoints support

 - add jumplabels support

 - add memtest support

 - drop unused/duplicated code from entry.S, ptrace.c, coprocessor.S,
   elf.h and syscall.h

 - clean up warnings caused by WSR/RSR macros

 - clean up DTC warnings about SPI controller node names in xtfpga.dtsi

 - simplify coprocessor.S

 - get rid of explicit 'l32r' instruction usage in assembly

* tag 'xtensa-20181228' of git://github.com/jcmvbkbc/linux-xtensa: (25 commits)
  xtensa: implement jump_label support
  xtensa: implement syscall tracepoints
  xtensa: implement tracehook functions and enable HAVE_ARCH_TRACEHOOK
  xtensa: enable CORE_DUMP_USE_REGSET
  xtensa: implement TIE regset
  xtensa: implement task_user_regset_view
  xtensa: call do_syscall_trace_{enter,leave} selectively
  xtensa: use NO_SYSCALL instead of -1
  xtensa: define syscall_get_arch()
  Move EM_XTENSA to uapi/linux/elf-em.h
  xtensa: support memtest
  xtensa: don't use l32r opcode directly
  xtensa: xtfpga.dtsi: fix dtc warnings about SPI
  xtensa: don't clear cpenable unconditionally on release
  xtensa: simplify coprocessor.S
  xtensa: clean up WSR*/RSR*/get_sr/set_sr
  xtensa: drop unused declarations from elf.h
  xtensa: clean up syscall.h
  xtensa: drop unused coprocessor helper functions
  xtensa: drop custom PTRACE_{PEEK,POKE}{TEXT,DATA}
  ...
2018-12-29 09:40:40 -08:00
Linus Torvalds
889bb74302 Merge tag 'nds32-for-linus-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux
Pull nds32 updates from Greentime Hu:

 - Perf support

 - Power management support

 - FPU support

 - Hardware prefetcher support

 - Build error fixed

 - Performance enhancement

* tag 'nds32-for-linus-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux:
  nds32: support hardware prefetcher
  nds32: Fix the items of hwcap_str ordering issue.
  math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning
  math-emu/op-2.h: Use statement expressions to prevent negative constant shift
  nds32: support denormalized result through FP emulator
  nds32: Support FP emulation
  nds32: nds32 FPU port
  nds32: Remove duplicated include from pm.c
  nds32: Power management for nds32
  nds32: Add document for NDS32 PMU.
  nds32: Add perf call-graph support.
  nds32: Perf porting
  nds32: Fix bug in bitfield.h
  nds32: Fix gcc 8.0 compiler option incompatible.
  nds32: Fill all TLB entries with kernel image mapping
  nds32: Remove the redundant assignment
2018-12-29 09:37:03 -08:00
Linus Torvalds
903b77c631 Merge tag 'linux-kselftest-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest updates from Shuah Khan:

 - fixes and improvements to the framework, and individual tests

 - a new media test for IR encoders from Sean Young

 - a new watchdog test option to find time left on a timer

* tag 'linux-kselftest-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: Fix test errors related to lib.mk khdr target
  fix dma-buf/udmabuf selftest
  selftests: watchdog: fix spelling mistake "experies" -> "expires"
  selftests: watchdog: Add gettimeleft command line arg
  selftests: do not macro-expand failed assertion expressions
  selftests/ftrace: Fix invalid SPDX identifiers
  selftests: gpio: Find libmount with pkg-config if available
  selftests: firmware: add CONFIG_FW_LOADER_USER_HELPER_FALLBACK to config
  selftests: firmware: remove use of non-standard diff -Z option
  media: rc: self test for IR encoders and decoders
2018-12-28 21:27:13 -08:00
Linus Torvalds
457fa3469a Merge tag 'char-misc-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
 "Here is the big set of char and misc driver patches for 4.21-rc1.

  Lots of different types of driver things in here, as this tree seems
  to be the "collection of various driver subsystems not big enough to
  have their own git tree" lately.

  Anyway, some highlights of the changes in here:

   - binderfs: is it a rule that all driver subsystems will eventually
     grow to have their own filesystem? Binder now has one to handle the
     use of it in containerized systems.

     This was discussed at the Plumbers conference a few months ago and
     knocked into mergable shape very fast by Christian Brauner. Who
     also has signed up to be another binder maintainer, showing a
     distinct lack of good judgement :)

   - binder updates and fixes

   - mei driver updates

   - fpga driver updates and additions

   - thunderbolt driver updates

   - soundwire driver updates

   - extcon driver updates

   - nvmem driver updates

   - hyper-v driver updates

   - coresight driver updates

   - pvpanic driver additions and reworking for more device support

   - lp driver updates. Yes really, it's _finally_ moved to the proper
     parallal port driver model, something I never thought I would see
     happen. Good stuff.

   - other tiny driver updates and fixes.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (116 commits)
  MAINTAINERS: add another Android binder maintainer
  intel_th: msu: Fix an off-by-one in attribute store
  stm class: Add a reference to the SyS-T document
  stm class: Fix a module refcount leak in policy creation error path
  char: lp: use new parport device model
  char: lp: properly count the lp devices
  char: lp: use first unused lp number while registering
  char: lp: detach the device when parallel port is removed
  char: lp: introduce list to save port number
  bus: qcom: remove duplicated include from qcom-ebi2.c
  VMCI: Use memdup_user() rather than duplicating its implementation
  char/rtc: Use of_node_name_eq for node name comparisons
  misc: mic: fix a DMA pool free failure
  ptp: fix an IS_ERR() vs NULL check
  genwqe: Fix size check
  binder: implement binderfs
  binder: fix use-after-free due to ksys_close() during fdget()
  bus: fsl-mc: remove duplicated include files
  bus: fsl-mc: explicitly define the fsl_mc_command endianness
  misc: ti-st: make array read_ver_cmd static, shrinks object size
  ...
2018-12-28 20:54:57 -08:00
Linus Torvalds
b07039b79c Merge tag 'driver-core-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
 "Here is the "big" set of driver core patches for 4.21-rc1.

  It's not really big, just a number of small changes for some reported
  issues, some documentation updates to hopefully make it harder for
  people to abuse the driver model, and some other minor cleanups.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  mm, memory_hotplug: update a comment in unregister_memory()
  component: convert to DEFINE_SHOW_ATTRIBUTE
  sysfs: Disable lockdep for driver bind/unbind files
  driver core: Add missing dev->bus->need_parent_lock checks
  kobject: return error code if writing /sys/.../uevent fails
  driver core: Move async_synchronize_full call
  driver core: platform: Respect return code of platform_device_register_full()
  kref/kobject: Improve documentation
  drivers/base/memory.c: Use DEVICE_ATTR_RO and friends
  driver core: Replace simple_strto{l,ul} by kstrtou{l,ul}
  kernfs: Improve kernfs_notify() poll notification latency
  kobject: Fix warnings in lib/kobject_uevent.c
  kobject: drop unnecessary cast "%llu" for u64
  driver core: fix comments for device_block_probing()
  driver core: Replace simple_strtol by kstrtoint
2018-12-28 20:44:29 -08:00
Linus Torvalds
02061181d3 Merge tag 'staging-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO driver updates from Greg KH:
 "Here is the big staging and iio driver pull request for 4.21-rc1.

  Lots and lots of tiny patches here, nothing major at all. Which is
  good, tiny cleanups is nice to see. No new huge driver removal or
  addition, this release cycle, although there are lots of good IIO
  driver changes, addtions, and movement from staging into the "real"
  part of the kernel, which is always great.

  Full details are in the shortlog, and all of these have been in
  linux-next for a while with no reported issues"

* tag 'staging-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (553 commits)
  staging: mt7621-mmc: Correct spelling mistakes in comments
  staging: wilc1000: fix missing read_write setting when reading data
  mt7621-mmc: char * array declaration might be better as static const
  mt7621-mmc: return statement in void function unnecessary
  mt7621-mmc: Alignment should match open parenthesis
  mt7621-mmc: Removed unnecessary blank lines
  mt7621-mmc: Fix some coding style issues
  staging: android: ashmem: doc: Fix spelling
  staging: rtl8188eu: cleanup brace coding style issues
  staging: rtl8188eu: add spaces around '&' in rtw_mlme_ext.c
  staging: rtl8188eu: change return type of is_basicrate() to bool
  staging: rtl8188eu: simplify null array initializations
  staging: rtl8188eu: change order of declarations to improve readability
  staging: rtl8188eu: make some arrays static in rtw_mlme_ext.c
  staging: rtl8188eu: constify some arrays
  staging: rtl8188eu: convert unsigned char arrays to u8
  staging: rtl8188eu: remove redundant declaration in rtw_mlme_ext.c
  staging: rtl8188eu: remove unused arrays WFD_OUI and WMM_INFO_OUI
  staging: rtl8188eu: remove unnecessary parentheses in rtw_mlme_ext.c
  staging: rtl8188eu: remove unnecessary comments in rtw_mlme_ext.c
  ...
2018-12-28 20:39:58 -08:00
Linus Torvalds
117eda8f71 Merge tag 'tty-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
 "Here is the large TTY/Serial driver set of patches for 4.21-rc1.

  A number of small serial driver changes along with some good tty core
  fixes for long-reported issues with locking. There is also a new
  console font added to the tree, for high-res screens, so that should
  be helpful for many.

  The last patch in the series is a revert of an older one in the tree,
  it came late but it resolves a reported issue that linux-next was
  having for some people.

  Full details are in the shortlog, and all of these, with the exception
  of the revert, have been in linux-next for a while with no reported
  issues"

* tag 'tty-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (85 commits)
  Revert "serial: 8250: Default SERIAL_OF_PLATFORM to SERIAL_8250"
  serial: sccnxp: Allow to use non-standard baud rates
  serial: sccnxp: Adds a delay between sequential read/write cycles
  tty: serial: qcom_geni_serial: Fix UART hang
  tty: serial: qcom_geni_serial: Fix wrap around of TX buffer
  serial: max310x: Fix tx_empty() callback
  dt-bindings: serial: sh-sci: Document r8a774c0 bindings
  dt-bindings: serial: sh-sci: Document r8a774a1 bindings
  Fonts: New Terminus large console font
  dt-bindings: serial: lpuart: add imx8qxp compatible string
  serial: uartps: Fix interrupt mask issue to handle the RX interrupts properly
  serial: uartps: Fix error path when alloc failed
  serial: uartps: Check if the device is a console
  serial: uartps: Add the device_init_wakeup
  tty: serial: samsung: Increase maximum baudrate
  tty: serial: samsung: Properly set flags in autoCTS mode
  tty: Use of_node_name_{eq,prefix} for node name comparisons
  tty/serial: do not free trasnmit buffer page under port lock
  serial: 8250: Rate limit serial port rx interrupts during input overruns
  dt-bindings: serial: 8250: Add rate limit for serial port input overruns
  ...
2018-12-28 20:33:54 -08:00
Linus Torvalds
c0ea81b4d3 Merge tag 'usb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY updates from Greg KH:
 "Here is the big set of USB and PHY driver patches for 4.21-rc1.

  All of the usual bits are in here:

  - loads of USB gadget driver updates and additions

  - new device ids

  - phy driver updates

  - xhci reworks and new features

  - typec updates

  Full details are in the shortlog.

  All of these have been in linux-next for a long time with no reported
  issues"

* tag 'usb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (142 commits)
  USB: serial: option: add Fibocom NL678 series
  cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader.
  usb: r8a66597: Fix a possible concurrency use-after-free bug in r8a66597_endpoint_disable()
  usb: typec: tcpm: Extend the matching rules on PPS APDO selection
  usb: typec: Improve Alt Mode documentation
  usb: musb: dsps: fix runtime pm for peripheral mode
  usb: musb: dsps: fix otg state machine
  USB: serial: pl2303: add ids for Hewlett-Packard HP POS pole displays
  usb: renesas_usbhs: add support for RZ/G2E
  usb: ehci-omap: Fix deferred probe for phy handling
  usb: roles: Add a description for the class to Kconfig
  usb: renesas_usbhs: mark PM functions as __maybe_unused
  usb: core: Remove unnecessary memset()
  usb: host: isp1362-hcd: convert to DEFINE_SHOW_ATTRIBUTE
  phy: qcom-qmp: Expose provided clocks to DT
  dt-bindings: phy-qcom-qmp: Move #clock-cells to child
  phy: qcom-qmp: Utilize fully-specified DT registers
  dt-bindings: phy-qcom-qmp: Fix register underspecification
  phy: ti: fix semicolon.cocci warnings
  phy: dphy: Add configuration helpers
  ...
2018-12-28 20:30:00 -08:00
Linus Torvalds
4d6ad6fba6 Merge tag 'hsi-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi
Pull HSI update from Sebastian Reichel:
 "omap-ssi: use DEFINE_SHOW_ATTRIBUTE"

* tag 'hsi-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
  HSI: omap_ssi: Change to use DEFINE_SHOW_ATTRIBUTE macro
2018-12-28 20:28:25 -08:00
Linus Torvalds
579a700359 Merge tag 'for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:

 - New core support:
    - battery internal resistance
    - battery OCV capacity lookup table
    - support for custom sysfs attributes

 - Convert all drivers to use power-supply core support for custom sysfs
   attributes

 - bq24190-charger: bq24196 support

 - axp20x-charger: AXP813 support

 - sc27xx-battery: new fuel gauge driver

 - gpio-poweroff: support for specific active and inactive delays

 - Misc fixes

* tag 'for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (53 commits)
  power: supply: bq25890: fix BAT_COMP field definition
  power: supply: gpio-charger: Do not use deprecated POWER_SUPPLY_TYPE_USB_*
  power: supply: ds2781: switch to devm_power_supply_register
  power: supply: ds2780: switch to devm_power_supply_register
  power: supply: ds2781: fix race-condition in bin attribute registration
  power: supply: ds2780: fix race-condition in bin attribute registration
  power: supply: pcf50633: fix race-condition in sysfs registration
  power: supply: charger-manager: fix race-condition in sysfs registration
  power: supply: charger-manager: simplify generation of sysfs attribute group name
  power: supply: bq24257: fix race-condition in sysfs registration
  power: supply: bq24190_charger: fix race-condition in sysfs registration
  power: supply: lp8788: fix race-condition in sysfs registration
  power: supply: ds2781: fix race-condition in sysfs registration
  power: supply: ds2780: fix race-condition in sysfs registration
  power: supply: bq2415x: fix race-condition in sysfs registration
  power: supply: core: add support for custom sysfs attributes
  power: supply: sc27xx: Save last battery capacity
  power: reset: at91-poweroff: move shdwc related data to one structure
  power: supply: sc27xx: Add suspend/resume interfaces
  power: supply: sc27xx: Add fuel gauge low voltage alarm
  ...
2018-12-28 20:22:45 -08:00
Linus Torvalds
030672aea8 Merge tag 'devicetree-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree updates from Rob Herring:
 "The biggest highlight here is the start of using json-schema for DT
  bindings. Being able to validate bindings has been discussed for years
  with little progress.

   - Initial support for DT bindings using json-schema language. This is
     the start of converting DT bindings from free-form text to a
     structured format.

   - Reworking of initrd address initialization. This moves to using the
     phys address instead of virt addr in the DT parsing code. This
     rework was motivated by CONFIG_DEV_BLK_INITRD causing unnecessary
     rebuilding of lots of files.

   - Fix stale phandle entries in phandle cache

   - DT overlay validation improvements. This exposed several memory
     leak bugs which have been fixed.

   - Use node name and device_type helper functions in DT code

   - Last remaining conversions to using %pOFn printk specifier instead
     of device_node.name directly

   - Create new common RTC binding doc and move all trivial RTC devices
     out of trivial-devices.txt.

   - New bindings for Freescale MAG3110 magnetometer, Cadence Sierra
     PHY, and Xen shared memory

   - Update dtc to upstream version v1.4.7-57-gf267e674d145"

* tag 'devicetree-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (68 commits)
  of: __of_detach_node() - remove node from phandle cache
  of: of_node_get()/of_node_put() nodes held in phandle cache
  gpio-omap.txt: add reg and interrupts properties
  dt-bindings: mrvl,intc: fix a trivial typo
  dt-bindings: iio: magnetometer: add dt-bindings for freescale mag3110
  dt-bindings: Convert trivial-devices.txt to json-schema
  dt-bindings: arm: mrvl: amend Browstone compatible string
  dt-bindings: arm: Convert Tegra board/soc bindings to json-schema
  dt-bindings: arm: Convert ZTE board/soc bindings to json-schema
  dt-bindings: arm: Add missing Xilinx boards
  dt-bindings: arm: Convert Xilinx board/soc bindings to json-schema
  dt-bindings: arm: Convert VIA board/soc bindings to json-schema
  dt-bindings: arm: Convert ST STi board/soc bindings to json-schema
  dt-bindings: arm: Convert SPEAr board/soc bindings to json-schema
  dt-bindings: arm: Convert CSR SiRF board/soc bindings to json-schema
  dt-bindings: arm: Convert QCom board/soc bindings to json-schema
  dt-bindings: arm: Convert TI nspire board/soc bindings to json-schema
  dt-bindings: arm: Convert TI davinci board/soc bindings to json-schema
  dt-bindings: arm: Convert Calxeda board/soc bindings to json-schema
  dt-bindings: arm: Convert Altera board/soc bindings to json-schema
  ...
2018-12-28 20:08:34 -08:00
Linus Torvalds
24dc83635f Merge tag 'gpio-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v4.21 kernel series.

  Core changes:

   - Some core changes are already in outside of this pull request as
     they came through the regulator tree, most notably
     devm_gpiod_unhinge() that removes devres refcount management from a
     GPIO descriptor. This is needed in subsystems such as regulators
     where the regulator core need to take over the reference counting
     and lifecycle management for a GPIO descriptor.

   - We dropped devm_gpiochip_remove() and devm_gpio_chip_match() as
     nothing needs it. We can bring it back if need be.

   - Add a global TODO so people see where we are going. This helps
     setting the direction now that we are two GPIO maintainers.

   - Handle the MMC CD/WP properties in the device tree core. (The bulk
     of patches activating this code is already merged through the
     MMC/SD tree.)

   - Augment gpiochip_request_own_desc() to pass a flag so we as
     gpiochips can request lines as active low or open drain etc even
     from ourselves.

  New drivers:

   - New driver for Cadence GPIO blocks.

   - New driver for Atmel SAMA5D2 PIOBU GPIO lines.

  Driver improvements:

   - A major refactoring of the PCA953x driver - this driver has been
     around for ages, and is now modernized to reduce code duplication
     that has stacked up and is using regmap to read write and cache
     registers.

   - Intel drivers are now maintained in a separate tree and start with
     a round of cleanups and unifications"

* tag 'gpio-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (99 commits)
  gpio: sama5d2-piobu: Depend on OF_GPIO
  gpio: Add Cadence GPIO driver
  dt-bindings: gpio: Add bindings for Cadence GPIO
  gpiolib-acpi: remove unused variable 'err', cleans up build warning
  gpio: mxs: read pin level directly instead of using .get
  gpio: aspeed: remove duplicated statement
  gpio: add driver for SAMA5D2 PIOBU pins
  dt-bindings: arm: atmel: describe SECUMOD usage as a GPIO controller
  gpio/mmc/of: Respect polarity in the device tree
  dt-bindings: gpio: rcar: Add r8a774c0 (RZ/G2E) support
  memory: omap-gpmc: Get the header of the enum
  ARM: omap1: Fix new user of gpiochip_request_own_desc()
  gpio: pca953x: Add regmap dependency for PCA953x driver
  gpio: raspberrypi-exp: decrease refcount on firmware dt node
  gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB
  gpio: pca953x: Restore registers after suspend/resume cycle
  gpio: pca953x: Zap single use of pca953x_read_single()
  gpio: pca953x: Zap ad-hoc reg_output cache
  gpio: pca953x: Zap ad-hoc reg_direction cache
  gpio: pca953x: Perform basic regmap conversion
  ...
2018-12-28 20:00:21 -08:00
Linus Torvalds
7e59fad9c9 Merge tag 'drm-next-2018-12-27' of git://anongit.freedesktop.org/drm/drm
Pull more drm updates from Dave Airlie:
 "Daniel collected a couple of pulls after I want on holidays, back for
  a couple of days, so may as well send them out.

  This has exynos and etnaviv work for 4.21.

  exynos:
   - plane alpha and blending configurability

  etnaviv:
   - mostly cleanups in prep for new features"

* tag 'drm-next-2018-12-27' of git://anongit.freedesktop.org/drm/drm:
  drm/etnaviv: remove lastctx member from gpu struct
  drm/etnaviv: replace header include with forward declaration
  drm/etnaviv: remove unnecessary local irq disable
  drm/exynos: fimd: Make pixel blend mode configurable
  drm/exynos: fimd: Make plane alpha configurable
  drm/etnaviv: Replace drm_dev_unref with drm_dev_put
  drm/etnaviv: consolidate hardware fence handling in etnaviv_gpu
  drm/etnaviv: kill active fence tracking
2018-12-28 19:57:29 -08:00
Linus Torvalds
8754040378 Merge tag 'hwmon-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
 "The big change in this series is for the most part automatic:
  Introducing SENSOR[_DEVICE]_ATTR_{RO,RW,WO} variants and conversion of
  various drivers to use it. This is similar to DEVICE_ATTR variants.

  Other than that, we have

   - Some conversions of S_<PERMS> with octal values, also automated

   - Added support for Hygon Dhyana CPUs to k10temp driver

   - Added support for STLM75 to lm75 driver

   - B57891S0103 to ntc_thermistor

   - Added pm-runtime support to ina3221 driver

   - Support for PowerPC On-Chip Controller (OCC)

   - Various minor bug fices and improvements"

* tag 'hwmon-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (80 commits)
  hwmon: (lm80) fix a missing check of bus read in lm80 probe
  hwmon: (lm80) fix a missing check of the status of SMBus read
  hwmon: (asus_atk0110) Fix debugfs_simple_attr.cocci warnings
  hwmon: (ftsteutates) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (fschmd) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (emc6w201) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (emc2103) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (emc1403) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (ds620) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (ds1621) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (dell-smm-hwmon) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (da9055-hwmon) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (da9052-hwmon) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (coretemp) Replace S_<PERMS> with octal values
  hwmon: (asus_atk0110) Replace S_<PERMS> with octal values
  hwmon: (aspeed-pwm-tacho) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (applesmc) Replace S_<PERMS> with octal values
  hwmon: (amc6821) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (adt7x10) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (adt7475) Use permission specific SENSOR[_DEVICE]_ATTR variants
  ...
2018-12-28 19:48:25 -08:00
Linus Torvalds
1984f65c2f Merge tag 'vfio-v4.21-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:

 - Replace global vfio-pci lock with per bus lock to allow concurrent
   open and release (Alex Williamson)

 - Declare mdev function as static (Paolo Cretaro)

 - Convert char to u8 in mdev/mtty sample driver (Nathan Chancellor)

* tag 'vfio-v4.21-rc1' of git://github.com/awilliam/linux-vfio:
  vfio-mdev/samples: Use u8 instead of char for handle functions
  vfio/mdev: add static modifier to add_mdev_supported_type
  vfio/pci: Parallelize device open and release
2018-12-28 19:41:58 -08:00
Linus Torvalds
f346b0becb Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton:

 - large KASAN update to use arm's "software tag-based mode"

 - a few misc things

 - sh updates

 - ocfs2 updates

 - just about all of MM

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (167 commits)
  kernel/fork.c: mark 'stack_vm_area' with __maybe_unused
  memcg, oom: notify on oom killer invocation from the charge path
  mm, swap: fix swapoff with KSM pages
  include/linux/gfp.h: fix typo
  mm/hmm: fix memremap.h, move dev_page_fault_t callback to hmm
  hugetlbfs: Use i_mmap_rwsem to fix page fault/truncate race
  hugetlbfs: use i_mmap_rwsem for more pmd sharing synchronization
  memory_hotplug: add missing newlines to debugging output
  mm: remove __hugepage_set_anon_rmap()
  include/linux/vmstat.h: remove unused page state adjustment macro
  mm/page_alloc.c: allow error injection
  mm: migrate: drop unused argument of migrate_page_move_mapping()
  blkdev: avoid migration stalls for blkdev pages
  mm: migrate: provide buffer_migrate_page_norefs()
  mm: migrate: move migrate_page_lock_buffers()
  mm: migrate: lock buffers before migrate_page_move_mapping()
  mm: migration: factor out code to compute expected number of page references
  mm, page_alloc: enable pcpu_drain with zone capability
  kmemleak: add config to select auto scan
  mm/page_alloc.c: don't call kasan_free_pages() at deferred mem init
  ...
2018-12-28 16:55:46 -08:00
Linus Torvalds
00d59fde85 Merge tag 'mmc-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
 "This time, this pull request contains changes crossing subsystems and
  archs/platforms, which is mainly because of a bigger modernization of
  moving from legacy GPIO to GPIO descriptors for MMC (by Linus
  Walleij).

  Additionally, once again, I am funneling changes to
  drivers/misc/cardreader/* and drivers/memstick/* through my MMC tree,
  mostly due to that we lack a maintainer for these.

  Summary:

  MMC core:
   - Cleanup BKOPS support
   - Introduce MMC_CAP_SYNC_RUNTIME_PM
   - slot-gpio: Delete legacy slot GPIO handling

  MMC host:
   - alcor: Add new mmc host driver for Alcor Micro PCI based cardreader
   - bcm2835: Several improvements to better recover from errors
   - jz4740: Rework and fixup pre|post_req support
   - mediatek: Add support for SDIO IRQs
   - meson-gx: Improve clock phase management
   - meson-gx: Stop descriptor on errors
   - mmci: Complete the sbc error path by sending a stop command
   - renesas_sdhi/tmio: Fixup reset/resume operations
   - renesas_sdhi: Add support for r8a774c0 and R7S9210
   - renesas_sdhi: Whitelist R8A77990 SDHI
   - renesas_sdhi: Fixup eMMC HS400 compatibility issues for H3 and M3-W
   - rtsx_usb_sdmmc: Re-work card detection/removal support
   - rtsx_usb_sdmmc: Re-work runtime PM support
   - sdhci: Fix timeout loops for some variant drivers
   - sdhci: Improve support for error handling due to failing commands
   - sdhci-acpi/pci: Disable LED control for Intel BYT-based controllers
   - sdhci_am654: Add new SDHCI variant driver to support TI's AM654 SOCs
   - sdhci-of-esdhc: Add support for eMMC HS400 mode
   - sdhci-omap: Fixup reset support
   - sdhci-omap: Workaround errata regarding SDR104/HS200 tuning failures
   - sdhci-msm: Fixup sporadic write transfers issues for SDR104/HS200
   - sdhci-msm: Fixup dynamical clock gating issues
   - various: Complete converting all hosts into using slot GPIO descriptors

  Other:
   - Move GPIO mmc platform data for mips/sh/arm to GPIO descriptors
   - Add new Alcor Micro cardreader PCI driver
   - Support runtime power management for memstick rtsx_usb_ms driver
   - Use USB remote wakeups for card detection for rtsx_usb misc driver"

* tag 'mmc-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (99 commits)
  mmc: mediatek: Add MMC_CAP_SDIO_IRQ support
  mmc: renesas_sdhi_internal_dmac: Whitelist r8a774c0
  dt-bindings: mmc: renesas_sdhi: Add r8a774c0 support
  mmc: core: Cleanup BKOPS support
  mmc: core: Drop redundant check in mmc_send_hpi_cmd()
  mmc: sdhci-omap: Workaround errata regarding SDR104/HS200 tuning failures (i929)
  dt-bindings: sdhci-omap: Add note for cpu_thermal
  mmc: sdhci-acpi: Disable LED control for Intel BYT-based controllers
  mmc: sdhci-pci: Disable LED control for Intel BYT-based controllers
  mmc: sdhci: Add quirk to disable LED control
  mmc: mmci: add variant property to set command stop bit
  misc: alcor_pci: fix spelling mistake "invailid" -> "invalid"
  mmc: meson-gx: add signal resampling
  mmc: meson-gx: align default phase on soc vendor tree
  mmc: meson-gx: remove useless lock
  mmc: meson-gx: make sure the descriptor is stopped on errors
  mmc: sdhci_am654: Add Initial Support for AM654 SDHCI driver
  dt-bindings: mmc: sdhci-of-arasan: Add deprecated message for AM65
  dt-bindings: mmc: sdhci-am654: Document bindings for the host controllers on TI's AM654 SOCs
  mmc: sdhci-msm: avoid unused function warning
  ...
2018-12-28 16:52:18 -08:00