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Author SHA1 Message Date
Amir Goldstein
45cd0faae3 vfs: add the fadvise() file operation 
This is going to be used by overlayfs and possibly useful
for other filesystems.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2018-08-30 17:08:35 +02:00
Amir Goldstein
17ef445f9b Documentation/filesystems: update documentation of file_operations 
...to kernel 4.18.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2018-08-30 17:08:35 +02:00
Linus Torvalds
de3750351c Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull irq update from Thomas Gleixner:
 "A small set of updats/fixes for the irq subsystem:

   - Allow GICv3 interrupts to be configured as wake-up sources to
     enable wakeup from suspend

   - Make the error handling of the STM32 irqchip init function work

   - A set of small cleanups and improvements"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic-v3: Allow interrupt to be configured as wake-up sources
  irqchip/tango: Set irq handler and data in one go
  dt-bindings: irqchip: renesas-irqc: Document r8a774a1 support
  irqchip/s3c24xx: Remove unneeded comparison of unsigned long to 0
  irqchip/stm32: Fix init error handling
  irqchip/bcm7038-l1: Hide cpu offline callback when building for !SMP
 2018-08-26 09:55:28 -07:00
Linus Torvalds
b326272010 ARM: SoC: late updates 
A couple of late-merged changes that would be useful to get in this
 merge window:
 
  - Driver support for reset of audio complex on Meson platforms. The
    audio driver went in this merge window, and these changes have been
    in -next for a while (just not in our tree).
 
  - Power management fixes for IOMMU on Rockchip platforms, getting
    closer to kexec working on them, including Chromebooks.
 
  - Another pass updating "arm,psci" -> "psci" for some properties that
    have snuck in since last time it was done.
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Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC late updates from Olof Johansson:
 "A couple of late-merged changes that would be useful to get in this
  merge window:

   - Driver support for reset of audio complex on Meson platforms. The
     audio driver went in this merge window, and these changes have been
     in -next for a while (just not in our tree).

   - Power management fixes for IOMMU on Rockchip platforms, getting
     closer to kexec working on them, including Chromebooks.

   - Another pass updating "arm,psci" -> "psci" for some properties that
     have snuck in since last time it was done"

* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  iommu/rockchip: Move irq request past pm_runtime_enable
  iommu/rockchip: Handle errors returned from PM framework
  arm64: rockchip: Force CONFIG_PM on Rockchip systems
  ARM: rockchip: Force CONFIG_PM on Rockchip systems
  arm64: dts: Fix various entry-method properties to reflect documentation
  reset: imx7: Fix always writing bits as 0
  reset: meson: add meson audio arb driver
  reset: meson: add dt-bindings for meson-axg audio arb
 2018-08-25 14:12:36 -07:00
Linus Torvalds
1bc276775d Kbuild updates for v4.19 (2nd) 
- add build_{menu,n,g,x}config targets for compile-testing Kconfig
 
  - fix and improve recursive dependency detection in Kconfig
 
  - fix parallel building of menuconfig/nconfig
 
  - fix syntax error in clang-version.sh
 
  - suppress distracting log from syncconfig
 
  - remove obsolete "rpm" target
 
  - remove VMLINUX_SYMBOL(_STR) macro entirely
 
  - fix microblaze build with CONFIG_DYNAMIC_FTRACE
 
  - move compiler test for dead code/data elimination to Kconfig
 
  - rename well-known LDFLAGS variable to KBUILD_LDFLAGS
 
  - misc fixes and cleanups
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Merge tag 'kbuild-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:

 - add build_{menu,n,g,x}config targets for compile-testing Kconfig

 - fix and improve recursive dependency detection in Kconfig

 - fix parallel building of menuconfig/nconfig

 - fix syntax error in clang-version.sh

 - suppress distracting log from syncconfig

 - remove obsolete "rpm" target

 - remove VMLINUX_SYMBOL(_STR) macro entirely

 - fix microblaze build with CONFIG_DYNAMIC_FTRACE

 - move compiler test for dead code/data elimination to Kconfig

 - rename well-known LDFLAGS variable to KBUILD_LDFLAGS

 - misc fixes and cleanups

* tag 'kbuild-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: rename LDFLAGS to KBUILD_LDFLAGS
  kbuild: pass LDFLAGS to recordmcount.pl
  kbuild: test dead code/data elimination support in Kconfig
  initramfs: move gen_initramfs_list.sh from scripts/ to usr/
  vmlinux.lds.h: remove stale <linux/export.h> include
  export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR()
  Coccinelle: remove pci_alloc_consistent semantic to detect in zalloc-simple.cocci
  kbuild: make sorting initramfs contents independent of locale
  kbuild: remove "rpm" target, which is alias of "rpm-pkg"
  kbuild: Fix LOADLIBES rename in Documentation/kbuild/makefiles.txt
  kconfig: suppress "configuration written to .config" for syncconfig
  kconfig: fix "Can't open ..." in parallel build
  kbuild: Add a space after `!` to prevent parsing as file pattern
  scripts: modpost: check memory allocation results
  kconfig: improve the recursive dependency report
  kconfig: report recursive dependency involving 'imply'
  kconfig: error out when seeing recursive dependency
  kconfig: add build-only configurator targets
  scripts/dtc: consolidate include path options in Makefile
 2018-08-25 13:40:38 -07:00
Linus Torvalds
0519359784 Merge branch 'for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 
Pull libata updates from Tejun Heo:
 "Nothing too interesting. Mostly ahci and ahci_platform changes, many
  around power management"

* 'for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (22 commits)
  ata: ahci_platform: enable to get and control reset
  ata: libahci_platform: add reset control support
  ata: add an extra argument to ahci_platform_get_resources()
  ata: sata_rcar: Add r8a77965 support
  ata: sata_rcar: exclude setting of PHY registers in Gen3
  ata: sata_rcar: really mask all interrupts on Gen2 and later
  Revert "ata: ahci_platform: allow disabling of hotplug to save power"
  ata: libahci: Allow reconfigure of DEVSLP register
  ata: libahci: Correct setting of DEVSLP register
  ata: ahci: Enable DEVSLP by default on x86 with SLP_S0
  ata: ahci: Support state with min power but Partial low power state
  Revert "ata: ahci_platform: convert kcalloc to devm_kcalloc"
  ata: sata_rcar: Add rudimentary Runtime PM support
  ata: sata_rcar: Provide a short-hand for &pdev->dev
  ata: Only output sg element mapped number in verbose debug
  ata: Guard ata_scsi_dump_cdb() by ATA_VERBOSE_DEBUG
  ata: ahci_platform: convert kcalloc to devm_kcalloc
  ata: ahci_platform: convert kzallloc to kcalloc
  ata: ahci_platform: correct parameter documentation for ahci_platform_shutdown
  libata: remove ata_sff_data_xfer_noirq()
  ...
 2018-08-24 13:20:33 -07:00
Linus Torvalds
18b8bfdfba IOMMU Update for Linux v4.19 
Including:
 
 	- PASID table handling updates for the Intel VT-d driver. It
 	  implements a global PASID space now so that applications
 	  usings multiple devices will just have one PASID.
 
 	- A new config option to make iommu passthroug mode the default.
 
 	- New sysfs attribute for iommu groups to export the type of the
 	  default domain.
 
 	- A debugfs interface (for debug only) usable by IOMMU drivers
 	  to export internals to user-space.
 
 	- R-Car Gen3 SoCs support for the ipmmu-vmsa driver
 
 	- The ARM-SMMU now aborts transactions from unknown devices and
 	  devices not attached to any domain.
 
 	- Various cleanups and smaller fixes all over the place.
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Merge tag 'iommu-updates-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU updates from Joerg Roedel:

 - PASID table handling updates for the Intel VT-d driver. It implements
   a global PASID space now so that applications usings multiple devices
   will just have one PASID.

 - A new config option to make iommu passthroug mode the default.

 - New sysfs attribute for iommu groups to export the type of the
   default domain.

 - A debugfs interface (for debug only) usable by IOMMU drivers to
   export internals to user-space.

 - R-Car Gen3 SoCs support for the ipmmu-vmsa driver

 - The ARM-SMMU now aborts transactions from unknown devices and devices
   not attached to any domain.

 - Various cleanups and smaller fixes all over the place.

* tag 'iommu-updates-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (42 commits)
  iommu/omap: Fix cache flushes on L2 table entries
  iommu: Remove the ->map_sg indirection
  iommu/arm-smmu-v3: Abort all transactions if SMMU is enabled in kdump kernel
  iommu/arm-smmu-v3: Prevent any devices access to memory without registration
  iommu/ipmmu-vmsa: Don't register as BUS IOMMU if machine doesn't have IPMMU-VMSA
  iommu/ipmmu-vmsa: Clarify supported platforms
  iommu/ipmmu-vmsa: Fix allocation in atomic context
  iommu: Add config option to set passthrough as default
  iommu: Add sysfs attribyte for domain type
  iommu/arm-smmu-v3: sync the OVACKFLG to PRIQ consumer register
  iommu/arm-smmu: Error out only if not enough context interrupts
  iommu/io-pgtable-arm-v7s: Abort allocation when table address overflows the PTE
  iommu/io-pgtable-arm: Fix pgtable allocation in selftest
  iommu/vt-d: Remove the obsolete per iommu pasid tables
  iommu/vt-d: Apply per pci device pasid table in SVA
  iommu/vt-d: Allocate and free pasid table
  iommu/vt-d: Per PCI device pasid table interfaces
  iommu/vt-d: Add for_each_device_domain() helper
  iommu/vt-d: Move device_domain_info to header
  iommu/vt-d: Apply global PASID in SVA
  ...
 2018-08-24 13:10:38 -07:00
Linus Torvalds
d972604f6f Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 
Pull thermal management updates from Zhang Rui:

 - Add Daniel Lezcano as the reviewer of thermal framework and SoC
   driver changes (Daniel Lezcano).

 - Fix a bug in intel_dts_soc_thermal driver, which does not translate
   IO-APIC GSI (Global System Interrupt) into Linux irq number (Hans de
   Goede).

 - For device tree bindings, allow cooling devices sharing same trip
   point with same contribution value to share cooling map (Viresh
   Kumar).

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  dt-bindings: thermal: Allow multiple devices to share cooling map
  MAINTAINERS: Add Daniel Lezcano as designated reviewer for thermal
  Thermal: Intel SoC DTS: Translate IO-APIC GSI number to linux irq number
 2018-08-24 13:03:51 -07:00
Amit Kucheria
e9880240e4 arm64: dts: Fix various entry-method properties to reflect documentation 
The idle-states binding documentation[1] mentions that the
'entry-method' property is required on 64-bit platforms and must be
set to "psci".

commit a13f18f59d ("Documentation: arm: Fix typo in the idle-states
bindings examples") attempted to fix this earlier but clearly more is
needed.

Fix the cpu-capacity.txt documentation that uses the incorrect value so
we don't get copy-paste errors like these. Clarify the language in
idle-states.txt by removing the reference to the psci bindings that
might be causing this confusion.

Finally, fix devicetrees of various boards to reflect current
documentation.

[1] Documentation/devicetree/bindings/arm/idle-states.txt (see
idle-states node)

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
 2018-08-24 08:50:02 -07:00
Olof Johansson
c37aad3612 Reset controller changes for v4.19, part 2 
This adds a single new driver for the Amlogic Meson Audio Memory Arbiter
 resets.
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Merge tag 'reset-for-4.19-2' of git://git.pengutronix.de/git/pza/linux into next/late

Reset controller changes for v4.19, part 2

This adds a single new driver for the Amlogic Meson Audio Memory Arbiter
resets.

* tag 'reset-for-4.19-2' of git://git.pengutronix.de/git/pza/linux:
  reset: meson: add meson audio arb driver
  reset: meson: add dt-bindings for meson-axg audio arb

Signed-off-by: Olof Johansson <olof@lixom.net>
 2018-08-24 08:49:48 -07:00
Thomas Gleixner
20b420dc42 irqchip updates for 4.19, take #2 
- bcm7038: compilation fix for !SMP
 - stm32: fix teardown on probe error
 - s3c24xx: fix compilation warning
 - renesas-irqc: r8a774a1 support
 - tango: chained irq setup simplification
 - gic-v3: allow wake-up sources
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Merge tag 'irqchip-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip updates for 4.19, take #2 from Marc Zyngier:

 - bcm7038: compilation fix for !SMP
 - stm32: fix teardown on probe error
 - s3c24xx: fix compilation warning
 - renesas-irqc: r8a774a1 support
 - tango: chained irq setup simplification
 - gic-v3: allow wake-up sources
 2018-08-24 16:06:42 +02:00
Peter Korsgaard
5d3a01a228 i2c: ocores: update my email address 
The old @sunsite.dk address is no longer active, so update the references.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
 2018-08-24 14:46:43 +02:00
Linus Torvalds
33e17876ea Merge branch 'akpm' (patches from Andrew) 
Merge yet more updates from Andrew Morton:

 - the rest of MM

 - various misc fixes and tweaks

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits)
  mm: Change return type int to vm_fault_t for fault handlers
  lib/fonts: convert comments to utf-8
  s390: ebcdic: convert comments to UTF-8
  treewide: convert ISO_8859-1 text comments to utf-8
  drivers/gpu/drm/gma500/: change return type to vm_fault_t
  docs/core-api: mm-api: add section about GFP flags
  docs/mm: make GFP flags descriptions usable as kernel-doc
  docs/core-api: split memory management API to a separate file
  docs/core-api: move *{str,mem}dup* to "String Manipulation"
  docs/core-api: kill trailing whitespace in kernel-api.rst
  mm/util: add kernel-doc for kvfree
  mm/util: make strndup_user description a kernel-doc comment
  fs/proc/vmcore.c: hide vmcoredd_mmap_dumps() for nommu builds
  treewide: correct "differenciate" and "instanciate" typos
  fs/afs: use new return type vm_fault_t
  drivers/hwtracing/intel_th/msu.c: change return type to vm_fault_t
  mm: soft-offline: close the race against page allocation
  mm: fix race on soft-offlining free huge pages
  namei: allow restricted O_CREAT of FIFOs and regular files
  hfs: prevent crash on exit from failed search
  ...
 2018-08-23 19:20:12 -07:00
Arnd Bergmann
3723c63247 treewide: convert ISO_8859-1 text comments to utf-8 
Almost all files in the kernel are either plain text or UTF-8 encoded.  A
couple however are ISO_8859-1, usually just a few characters in a C
comments, for historic reasons.

This converts them all to UTF-8 for consistency.

Link: http://lkml.kernel.org/r/20180724111600.4158975-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Simon Horman <horms@verge.net.au>			[IPVS portion]
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>	[IIO]
Acked-by: Michael Ellerman <mpe@ellerman.id.au>			[powerpc]
Acked-by: Rob Herring <robh@kernel.org>
Cc: Joe Perches <joe@perches.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-23 18:48:43 -07:00
Mike Rapoport
038a07a542 docs/core-api: mm-api: add section about GFP flags 
Link: http://lkml.kernel.org/r/1532626360-16650-8-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-23 18:48:43 -07:00
Mike Rapoport
41f35b395c docs/core-api: split memory management API to a separate file 
This is basically copy-paste of the memory management section from
kernel-api.rst with some minor adjustments:

* The "User Space Memory Access" is moved to the beginning
* The get_user_pages_fast reference is now a part of "User Space Memory
  Access"
* And, of course, headings are adjusted with section being promoted to
  chapters

Link: http://lkml.kernel.org/r/1532626360-16650-6-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-23 18:48:43 -07:00
Mike Rapoport
1595617655 docs/core-api: move *{str,mem}dup* to "String Manipulation" 
The string and memory duplication routines fit better to the "String
Manipulation" section than to "The SLAB Cache".

Link: http://lkml.kernel.org/r/1532626360-16650-5-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-23 18:48:43 -07:00
Mike Rapoport
7463f650be docs/core-api: kill trailing whitespace in kernel-api.rst 
Link: http://lkml.kernel.org/r/1532626360-16650-4-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-23 18:48:43 -07:00
Finn Thain
3cc97bea60 treewide: correct "differenciate" and "instanciate" typos 
Also add these typos to spelling.txt so checkpatch.pl will look for them.

Link: http://lkml.kernel.org/r/88af06b9de34d870cb0afc46cfd24e0458be2575.1529471371.git.fthain@telegraphics.com.au
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-23 18:48:43 -07:00
Salvatore Mesoraca
30aba6656f namei: allow restricted O_CREAT of FIFOs and regular files 
Disallows open of FIFOs or regular files not owned by the user in world
writable sticky directories, unless the owner is the same as that of the
directory or the file is opened without the O_CREAT flag.  The purpose
is to make data spoofing attacks harder.  This protection can be turned
on and off separately for FIFOs and regular files via sysctl, just like
the symlinks/hardlinks protection.  This patch is based on Openwall's
"HARDEN_FIFO" feature by Solar Designer.

This is a brief list of old vulnerabilities that could have been prevented
by this feature, some of them even allow for privilege escalation:

CVE-2000-1134
CVE-2007-3852
CVE-2008-0525
CVE-2009-0416
CVE-2011-4834
CVE-2015-1838
CVE-2015-7442
CVE-2016-7489

This list is not meant to be complete.  It's difficult to track down all
vulnerabilities of this kind because they were often reported without any
mention of this particular attack vector.  In fact, before
hardlinks/symlinks restrictions, fifos/regular files weren't the favorite
vehicle to exploit them.

[s.mesoraca16@gmail.com: fix bug reported by Dan Carpenter]
  Link: https://lkml.kernel.org/r/20180426081456.GA7060@mwanda
  Link: http://lkml.kernel.org/r/1524829819-11275-1-git-send-email-s.mesoraca16@gmail.com
[keescook@chromium.org: drop pr_warn_ratelimited() in favor of audit changes in the future]
[keescook@chromium.org: adjust commit subjet]
Link: http://lkml.kernel.org/r/20180416175918.GA13494@beast
Signed-off-by: Salvatore Mesoraca <s.mesoraca16@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Suggested-by: Solar Designer <solar@openwall.com>
Suggested-by: Kees Cook <keescook@chromium.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-23 18:48:43 -07:00
Linus Torvalds
b39d7efc11 pwm: Changes for v4.19-rc1 
This contains mostly minor bug fixes as well as some new chip support
 for existing drivers.
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Merge tag 'pwm/for-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "This contains mostly minor bug fixes as well as some new chip support
  for existing drivers"

* tag 'pwm/for-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: mediatek: Add MT7628 support
  dt-bindings: pwm: Add MT7628 information
  dt-bindings: pwm: rcar: Add bindings for R-Car E3 support
  pwm: meson: Fix mux clock names
  pwm: stm32-lp: Remove useless loop in stm32_pwm_lp_remove()
  pwm: omap-dmtimer: Return -EPROBE_DEFER if no dmtimer platform data
  pwm: mxs: Switch to SPDX identifier
  dt-bindings: pwm: fsl-ftm: Add compatible string for i.MX8QM
  pwm: fsl-ftm: Enable support for the new SoC i.MX8QM
  pwm: fsl-ftm: Added the support of per-compatible data
  pwm: fsl-ftm: Added a dedicated IP interface clock
  pwm: cros-ec: Switch to SPDX identifier
  pwm: imx: Switch to SPDX identifier
  pwm: tiehrpwm: Fix disabling of output of PWMs
  pwm: tiehrpwm: Don't use emulation mode bits to control PWM output
  pwm: berlin: Don't use broken prescaler values
 2018-08-23 15:51:09 -07:00
Linus Torvalds
06e386a1db fbdev changes for v4.19: 
- add support for deferred console takeover, when enabled defers
   fbcon taking over the console from the dummy console until the
   first text is displayed on the console - together with the "quiet"
   kernel commandline option this allows fbcon to still be used
   together with a smooth graphical bootup (Hans de Goede)
 
 - improve console locking debugging code (Thomas Zimmermann)
 
 - copy the ACPI BGRT boot graphics to the framebuffer when deferred
   console takeover support is used in efifb driver (Hans de Goede)
 
 - update udlfb driver - fix lost console when the user unplugs a USB
   adapter, fix the screen corruption issue, fix locking and add some
   performance optimizations (Mikulas Patocka)
 
 - update pxafb driver - fix using uninitialized memory, switch to
   devm_* API, handle initialization errors and add support for
   lcd-supply regulator (Daniel Mack)
 
 - add support for boards booted with a DeviceTree in pxa3xx_gcu
   driver (Daniel Mack)
 
 - rename omap2 module to omap2fb.ko to avoid conflicts with omap1
   driver (Arnd Bergmann)
 
 - enable ACPI-based enumeration for goldfishfb driver (Yu Ning)
 
 - fix goldfishfb driver to make user space Android code use 60 fps
   (Christoffer Dall)
 
 - print big fat warning when nomodeset kernel parameter is used in
   vgacon driver (Lyude Paul)
 
 - remove VLA usage from fsl-diu-fb driver (Kees Cook)
 
 - misc fixes (Julia Lawall, Geert Uytterhoeven, Fredrik Noring,
   Yisheng Xie, Dan Carpenter, Daniel Vetter, Anton Vasilyev, Randy
   Dunlap, Gustavo A. R. Silva, Colin Ian King, Fengguang Wu)
 
 - misc cleanups (Roman Kiryanov, Yisheng Xie, Colin Ian King)
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Merge tag 'fbdev-v4.19' of https://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:
 "Mostly small fixes and cleanups for fb drivers (the biggest updates
  are for udlfb and pxafb drivers). This also adds deferred console
  takeover support to the console code and efifb driver.

  Summary:

   - add support for deferred console takeover, when enabled defers
     fbcon taking over the console from the dummy console until the
     first text is displayed on the console - together with the "quiet"
     kernel commandline option this allows fbcon to still be used
     together with a smooth graphical bootup (Hans de Goede)

   - improve console locking debugging code (Thomas Zimmermann)

   - copy the ACPI BGRT boot graphics to the framebuffer when deferred
     console takeover support is used in efifb driver (Hans de Goede)

   - update udlfb driver - fix lost console when the user unplugs a USB
     adapter, fix the screen corruption issue, fix locking and add some
     performance optimizations (Mikulas Patocka)

   - update pxafb driver - fix using uninitialized memory, switch to
     devm_* API, handle initialization errors and add support for
     lcd-supply regulator (Daniel Mack)

   - add support for boards booted with a DeviceTree in pxa3xx_gcu
     driver (Daniel Mack)

   - rename omap2 module to omap2fb.ko to avoid conflicts with omap1
     driver (Arnd Bergmann)

   - enable ACPI-based enumeration for goldfishfb driver (Yu Ning)

   - fix goldfishfb driver to make user space Android code use 60 fps
     (Christoffer Dall)

   - print big fat warning when nomodeset kernel parameter is used in
     vgacon driver (Lyude Paul)

   - remove VLA usage from fsl-diu-fb driver (Kees Cook)

   - misc fixes (Julia Lawall, Geert Uytterhoeven, Fredrik Noring,
     Yisheng Xie, Dan Carpenter, Daniel Vetter, Anton Vasilyev, Randy
     Dunlap, Gustavo A. R. Silva, Colin Ian King, Fengguang Wu)

   - misc cleanups (Roman Kiryanov, Yisheng Xie, Colin Ian King)"

* tag 'fbdev-v4.19' of https://github.com/bzolnier/linux: (54 commits)
  Documentation/fb: corrections for fbcon.txt
  fbcon: Do not takeover the console from atomic context
  dummycon: Stop exporting dummycon_[un]register_output_notifier
  fbcon: Only defer console takeover if the current console driver is the dummycon
  fbcon: Only allow FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER if fbdev is builtin
  fbdev: omap2: omapfb: fix ifnullfree.cocci warnings
  fbdev: omap2: omapfb: fix bugon.cocci warnings
  fbdev: omap2: omapfb: fix boolreturn.cocci warnings
  fb: amifb: fix build warnings when not builtin
  fbdev/core: Disable console-lock warnings when fb.lockless_register_fb is set
  console: Replace #if 0 with atomic var 'ignore_console_lock_warning'
  udlfb: use spin_lock_irq instead of spin_lock_irqsave
  udlfb: avoid prefetch
  udlfb: optimization - test the backing buffer
  udlfb: allow reallocating the framebuffer
  udlfb: set line_length in dlfb_ops_set_par
  udlfb: handle allocation failure
  udlfb: set optimal write delay
  udlfb: make a local copy of fb_ops
  udlfb: don't switch if we are switching to the same videomode
  ...
 2018-08-23 15:44:58 -07:00
Linus Torvalds
2f34a64aea ARM: Device-tree updates 
Business as usual -- the bulk of our changes are to devicetree files
 with new hardware support, new SoCs and platforms, and new board types.
 
 New SoCs/platforms:
  - Raspberry Pi Compute Module (CM1) and IO board
  - i.MX6SSL from NXP
  - Renesas RZ/N1D SoC (R9A06G032), Dual Cortex-A7 with Ethernet, CAN and
    PLC interfaces
  - TI AM654 SoC, Quad Cortex-A53, safety subsystem with Cortex-R5
    controllers, communication and PRU subsystem and lots of other
    interfaces (PCIe, USB3, etc).
 
 New boards and systems:
  - Several Atmel at91-based boards from Laird
  - Marvell Armada388-based Helios4 board from SolidRun
  - Samsung Aires-based phones (s5pv210)
  - Allwinner A64-based Pinebook laptop
 
 In addition to the above, there's the usual amount of new devices
 described on existing platforms, fixes and tweaks and new minor variants
 of boards/platforms.
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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:
 "Business as usual -- the bulk of our changes are to devicetree files
  with new hardware support, new SoCs and platforms, and new board
  types.

  New SoCs/platforms:
   - Raspberry Pi Compute Module (CM1) and IO board
   - i.MX6SSL from NXP
   - Renesas RZ/N1D SoC (R9A06G032), Dual Cortex-A7 with Ethernet, CAN
     and PLC interfaces
   - TI AM654 SoC, Quad Cortex-A53, safety subsystem with Cortex-R5
     controllers, communication and PRU subsystem and lots of other
     interfaces (PCIe, USB3, etc).

  New boards and systems:
   - Several Atmel at91-based boards from Laird
   - Marvell Armada388-based Helios4 board from SolidRun
   - Samsung Aires-based phones (s5pv210)
   - Allwinner A64-based Pinebook laptop

  In addition to the above, there's the usual amount of new devices
  described on existing platforms, fixes and tweaks and new minor
  variants of boards/platforms"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (478 commits)
  arm64: dts: sdm845: Add tsens nodes
  arm64: dts: msm8996: thermal: Initialise via DT and add second controller
  arm64: dts: sprd: Add one suspend timer
  arm64: dts: sprd: Add SC27XX ADC device
  arm64: dts: sprd: Add SC27XX eFuse device
  arm64: dts: sprd: Add SC27XX vibrator device
  arm64: dts: sprd: Add SC27XX breathing light controller device
  arm64: dts: meson-axg: add spdif-dit codec
  arm64: dts: meson-axg: add lineout codec
  arm64: dts: meson-axg: add linein codec
  arm64: dts: meson-axg: add tdm interfaces
  arm64: dts: meson-axg: add tdmout formatters
  arm64: dts: meson-axg: add tdmin formatters
  arm64: dts: meson-axg: add spdifout
  arm64: dts: rockchip: add led support for Firefly-RK3399
  arm64: dts: rockchip: remove deprecated Type-C PHY properties on rk3399
  arm64: dts: rockchip: add power button support for Firefly-RK3399
  ARM: dts: aspeed: Add coprocessor interrupt controller
  arm64: dts: meson-axg: add audio arb reset controller
  arm64: dts: meson-axg: add usb power regulator
  ...
 2018-08-23 14:02:22 -07:00
Linus Torvalds
f3ea496213 ARM: SoC driver updates 
Some of the larger changes this merge window:
  - Removal of drivers for Exynos5440, a Samsung SoC that never saw
    widespread use.
  - Uniphier support for USB3 and SPI reset handling
  - Syste control and SRAM drivers and bindings for Allwinner platforms
  - Qualcomm AOSS (Always-on subsystem) reset controller drivers
  - Raspberry Pi hwmon driver for voltage
  - Mediatek pwrap (pmic) support for MT6797 SoC
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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:
 "Some of the larger changes this merge window:

   - Removal of drivers for Exynos5440, a Samsung SoC that never saw
     widespread use.

   - Uniphier support for USB3 and SPI reset handling

   - Syste control and SRAM drivers and bindings for Allwinner platforms

   - Qualcomm AOSS (Always-on subsystem) reset controller drivers

   - Raspberry Pi hwmon driver for voltage

   - Mediatek pwrap (pmic) support for MT6797 SoC"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (52 commits)
  drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests
  soc: fsl: cleanup Kconfig menu
  soc: fsl: dpio: Convert DPIO documentation to .rst
  staging: fsl-mc: Remove remaining files
  staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl
  staging: fsl-dpaa2: eth: move generic FD defines to DPIO
  soc: fsl: qe: gpio: Add qe_gpio_set_multiple
  usb: host: exynos: Remove support for Exynos5440
  clk: samsung: Remove support for Exynos5440
  soc: sunxi: Add the A13, A23 and H3 system control compatibles
  reset: uniphier: add reset control support for SPI
  cpufreq: exynos: Remove support for Exynos5440
  ata: ahci-platform: Remove support for Exynos5440
  soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata
  soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs
  soc: mediatek: pwrap: add pwrap driver for mt6797 SoCs
  soc: mediatek: pwrap: fix cipher init setting error
  dt-bindings: pwrap: mediatek: add pwrap support for MT6797
  reset: uniphier: add USB3 core reset control
  dt-bindings: reset: uniphier: add USB3 core reset support
  ...
 2018-08-23 13:52:46 -07:00
Linus Torvalds
899fbc33fd platform-drivers-x86 for v4.19-1 
The driver for Silead touchscreen configurations has been renamed
 from silead_dmi to touchscreen_dmi since it starts supporting other
 touchscreens which require some DMI quirks. At the same release cycle
 it gets expanded to cover cases for Chuwi Vi10, ONDA V891W,
 Connect Tablet 9, Onda V820w, and Cube KNote i1101 tablets.
 
 Another bunch of changes is related to Mellanox platform code to allow
 user space to communicate with Mellanox for system control and
 monitoring purposes. The driver notifies user on hotplug device signal
 receiving.
 
 ASUS WMI drivers recognize lid flip action on UX360, and correctly
 toggles airplane mode LED. In addition the keyboard backlight toggle
 gets support.
 
 ThinkPad ACPI driver enables support for calculator key (on at least P52).
 It also has been fixed to support three characters model designators,
 which are used for modern laptops. Earlier the battery, marked as BAT1,
 on ThinkPad laptops has not been configured properly, which is fixed.
 On the opposite the multi-battery configurations now probed correctly.
 
 Dell SMBIOS driver starts working on some Dell servers which do not
 support token interface. The regression with backlight detection has
 also been fixed. In order to support dock mode on some laptops,
 Intel virtual button driver has been fixed. The last but not least
 is the fix to Intel HID driver due to changes in Dell systems that
 prevented to use power button.
 
 The following is an automated git shortlog grouped by driver:
 
 acer-wmi:
  -  Silence "unsupported" message a bit
  -  refactor function has_cap
 
 asus-nb-wmi:
  -  Add keymap entry for lid flip action on UX360
 
 asus-wireless:
  -  Fix uninitialized symbol usage
  -  Toggle airplane mode LED
 
 asus-wmi:
  -  Add keyboard backlight toggle support
  -  Call led hw_changed API on kbd brightness change
 
 dell-laptop:
  -  Fix backlight detection
 
 dell-smbios:
  -  make a function and a pointer static
 
 dell-smbios-base:
  -  Support systems without tokens
 
 dell-smbios-wmi:
  -  make function dell_smbios_wmi_call static
 
 ideapad-laptop:
  -  Add Y520-15IKBM and Y720-15IKBM to no_hw_rfkill
  -  Apply no_hw_rfkill to Y20-15IKBM, too
 
 intel-hid:
  -  Add support for Device Specific Methods
 
 intel_ips:
  -  remove redundant variables slope and offset
 
 intel_pmc_core:
  -  Add CNP SLPS0 debug registers
 
 intel_punit_ipc:
  -  fix build errors
 
 intel-vbtn:
  -  Add support for dock mode detection
 
 mlx-platform:
  -  Fix copy-paste error in mlxplat_init()
  -  Remove unused define
  -  Change mlxreg-io configuration for MSN274x systems
  -  Allow mlxreg-io driver activation for more systems
  -  Add ASIC hotplug device configuration
  -  Add new attribute for mlxreg-io sysfs interfaces
  -  Add mlxreg-fan platform driver activation
  -  Add documentation mlxreg-io sysfs interfaces
  -  Add mlxreg-io platform driver activation
 
 platform/mellanox:
  -  mlxreg-hotplug: Add hotplug hwmon uevent notification
  -  mlxreg-hotplug: Improve mechanism of ASIC health discovery
  -  Use 2-factor allocator calls
  -  Introduce support for Mellanox register access driver
 
 thinkpad_acpi:
  -  Fix multi-battery bug
  -  extend battery quirk coverage
  -  Support battery quirk
  -  Proper model/release matching
  -  Add support for calculator hotkey
 
 toshiba_acpi:
  -  Fix defined but not used build warnings
  -  Update KBD backlight LED on second gen laptops
 
 touchscreen_dmi:
  -  Rename silead_dmi to touchscreen_dmi
  -  Add touchscreen info for the Chuwi Vi10 tablet
  -  Sort entries alphabetically
  -  Rename trekstor entries
  -  Add info for the Cube KNote i1101 tablet
  -  Add info for the Onda V820w tablet
  -  Add info for the "Connect Tablet 9" tablet
  -  Add info for the ONDA V891W Dual OS tablet
 
 wmi:
  -  Do not mix pages and kmalloc
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Merge tag 'platform-drivers-x86-v4.19-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver updates from Andy Shevchenko:

 - The driver for Silead touchscreen configurations has been renamed
   from silead_dmi to touchscreen_dmi since it starts supporting other
   touchscreens which require some DMI quirks

   It also gets expanded to cover cases for Chuwi Vi10, ONDA V891W,
   Connect Tablet 9, Onda V820w, and Cube KNote i1101 tablets.

 - Another bunch of changes is related to Mellanox platform code to
   allow user space to communicate with Mellanox for system control and
   monitoring purposes. The driver notifies user on hotplug device
   signal receiving.

 - ASUS WMI drivers recognize lid flip action on UX360, and correctly
   toggles airplane mode LED. In addition the keyboard backlight toggle
   gets support.

 - ThinkPad ACPI driver enables support for calculator key (on at least
   P52). It also has been fixed to support three characters model
   designators, which are used for modern laptops. Earlier the battery,
   marked as BAT1, on ThinkPad laptops has not been configured properly,
   which is fixed. On the opposite the multi-battery configurations now
   probed correctly.

 - Dell SMBIOS driver starts working on some Dell servers which do not
   support token interface. The regression with backlight detection has
   also been fixed. In order to support dock mode on some laptops, Intel
   virtual button driver has been fixed. The last but not least is the
   fix to Intel HID driver due to changes in Dell systems that prevented
   to use power button.

* tag 'platform-drivers-x86-v4.19-1' of git://git.infradead.org/linux-platform-drivers-x86: (47 commits)
  platform/x86: acer-wmi: Silence "unsupported" message a bit
  platform/x86: intel_punit_ipc: fix build errors
  platform/x86: ideapad: Add Y520-15IKBM and Y720-15IKBM to no_hw_rfkill
  platform/x86: asus-nb-wmi: Add keymap entry for lid flip action on UX360
  platform/x86: acer-wmi: refactor function has_cap
  platform/x86: thinkpad_acpi: Fix multi-battery bug
  platform/x86: thinkpad_acpi: extend battery quirk coverage
  platform/x86: touchscreen_dmi: Add info for the Cube KNote i1101 tablet
  platform/x86: mlx-platform: Fix copy-paste error in mlxplat_init()
  platform/x86: mlx-platform: Remove unused define
  platform/x86: mlx-platform: Change mlxreg-io configuration for MSN274x systems
  Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
  platform/x86: mlx-platform: Allow mlxreg-io driver activation for more systems
  platform/x86: mlx-platform: Add ASIC hotplug device configuration
  platform/mellanox: mlxreg-hotplug: Add hotplug hwmon uevent notification
  platform/mellanox: mlxreg-hotplug: Improve mechanism of ASIC health discovery
  platform/x86: mlx-platform: Add mlxreg-fan platform driver activation
  platform/x86: dell-laptop: Fix backlight detection
  platform/x86: toshiba_acpi: Fix defined but not used build warnings
  platform/x86: thinkpad_acpi: Support battery quirk
  ...
 2018-08-22 14:14:15 -07:00
Linus Torvalds
b372115311 ARM: Support for Group0 interrupts in guests, Cache management 
optimizations for ARMv8.4 systems, Userspace interface for RAS, Fault
 path optimization, Emulated physical timer fixes, Random cleanups
 
 x86: fixes for L1TF, a new test case, non-support for SGX (inject the
 right exception in the guest), a lockdep false positive
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull second set of KVM updates from Paolo Bonzini:
 "ARM:
   - Support for Group0 interrupts in guests
   - Cache management optimizations for ARMv8.4 systems
   - Userspace interface for RAS
   - Fault path optimization
   - Emulated physical timer fixes
   - Random cleanups

  x86:
   - fixes for L1TF
   - a new test case
   - non-support for SGX (inject the right exception in the guest)
   - fix lockdep false positive"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (49 commits)
  KVM: VMX: fixes for vmentry_l1d_flush module parameter
  kvm: selftest: add dirty logging test
  kvm: selftest: pass in extra memory when create vm
  kvm: selftest: include the tools headers
  kvm: selftest: unify the guest port macros
  tools: introduce test_and_clear_bit
  KVM: x86: SVM: Call x86_spec_ctrl_set_guest/host() with interrupts disabled
  KVM: vmx: Inject #UD for SGX ENCLS instruction in guest
  KVM: vmx: Add defines for SGX ENCLS exiting
  x86/kvm/vmx: Fix coding style in vmx_setup_l1d_flush()
  x86: kvm: avoid unused variable warning
  KVM: Documentation: rename the capability of KVM_CAP_ARM_SET_SERROR_ESR
  KVM: arm/arm64: Skip updating PTE entry if no change
  KVM: arm/arm64: Skip updating PMD entry if no change
  KVM: arm: Use true and false for boolean values
  KVM: arm/arm64: vgic: Do not use spin_lock_irqsave/restore with irq disabled
  KVM: arm/arm64: vgic: Move DEBUG_SPINLOCK_BUG_ON to vgic.h
  KVM: arm: vgic-v3: Add support for ICC_SGI0R and ICC_ASGI1R accesses
  KVM: arm64: vgic-v3: Add support for ICC_SGI0R_EL1 and ICC_ASGI1R_EL1 accesses
  KVM: arm/arm64: vgic-v3: Add core support for Group0 SGIs
  ...
 2018-08-22 13:52:44 -07:00
Linus Torvalds
fe6f0ed0da f2fs-for-4.19-rc1 
In this round, we've tuned f2fs to improve general performance by serializing
 block allocation and enhancing discard flows like fstrim which avoids user IO
 contention. And we've added fsync_mode=nobarrier which gives an option to user
 where it skips issuing cache_flush commands to underlying flash storage. And
 there are many bug fixes related to fuzzed images, revoked atomic writes, quota
 ops, and minor direct IO.
 
 Enhancement:
  - add fsync_mode=nobarrier which bypasses cache_flush command
  - enhance the discarding flow which avoids user IOs and issues in LBA order
  - readahead some encrypted blocks during GC
  - enable in-memory inode checksum to verify the blocks if F2FS_CHECK_FS is set
  - enhance nat_bits behavior
  - set -o discard by default
  - set REQ_RAHEAD to bio in ->readpages
 
 Bug fixes:
  - fix a corner case to corrupt atomic_writes revoking flow
  - revisit i_gc_rwsem to fix race conditions
  - fix some dio behaviors captured by xfstests
  - correct handling errors given by quota-related failures
  - add many sanity check flows to avoid fuzz test failures
  - add more error number propagation to their callers
  - fix several corner cases to continue fault injection w/ shutdown loop
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Merge tag 'f2fs-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we've tuned f2fs to improve general performance by
  serializing block allocation and enhancing discard flows like fstrim
  which avoids user IO contention. And we've added fsync_mode=nobarrier
  which gives an option to user where it skips issuing cache_flush
  commands to underlying flash storage. And there are many bug fixes
  related to fuzzed images, revoked atomic writes, quota ops, and minor
  direct IO.

  Enhancements:
   - add fsync_mode=nobarrier which bypasses cache_flush command
   - enhance the discarding flow which avoids user IOs and issues in
     LBA order
   - readahead some encrypted blocks during GC
   - enable in-memory inode checksum to verify the blocks if
     F2FS_CHECK_FS is set
   - enhance nat_bits behavior
   - set -o discard by default
   - set REQ_RAHEAD to bio in ->readpages

  Bug fixes:
   - fix a corner case to corrupt atomic_writes revoking flow
   - revisit i_gc_rwsem to fix race conditions
   - fix some dio behaviors captured by xfstests
   - correct handling errors given by quota-related failures
   - add many sanity check flows to avoid fuzz test failures
   - add more error number propagation to their callers
   - fix several corner cases to continue fault injection w/ shutdown
     loop"

* tag 'f2fs-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (89 commits)
  f2fs: readahead encrypted block during GC
  f2fs: avoid fi->i_gc_rwsem[WRITE] lock in f2fs_gc
  f2fs: fix performance issue observed with multi-thread sequential read
  f2fs: fix to skip verifying block address for non-regular inode
  f2fs: rework fault injection handling to avoid a warning
  f2fs: support fault_type mount option
  f2fs: fix to return success when trimming meta area
  f2fs: fix use-after-free of dicard command entry
  f2fs: support discard submission error injection
  f2fs: split discard command in prior to block layer
  f2fs: wake up gc thread immediately when gc_urgent is set
  f2fs: fix incorrect range->len in f2fs_trim_fs()
  f2fs: refresh recent accessed nat entry in lru list
  f2fs: fix avoid race between truncate and background GC
  f2fs: avoid race between zero_range and background GC
  f2fs: fix to do sanity check with block address in main area v2
  f2fs: fix to do sanity check with inline flags
  f2fs: fix to reset i_gc_failures correctly
  f2fs: fix invalid memory access
  f2fs: fix to avoid broken of dnode block list
  ...
 2018-08-22 13:29:39 -07:00
Linus Torvalds
cd9b44f907 Merge branch 'akpm' (patches from Andrew) 
Merge more updates from Andrew Morton:

 - the rest of MM

 - procfs updates

 - various misc things

 - more y2038 fixes

 - get_maintainer updates

 - lib/ updates

 - checkpatch updates

 - various epoll updates

 - autofs updates

 - hfsplus

 - some reiserfs work

 - fatfs updates

 - signal.c cleanups

 - ipc/ updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (166 commits)
  ipc/util.c: update return value of ipc_getref from int to bool
  ipc/util.c: further variable name cleanups
  ipc: simplify ipc initialization
  ipc: get rid of ids->tables_initialized hack
  lib/rhashtable: guarantee initial hashtable allocation
  lib/rhashtable: simplify bucket_table_alloc()
  ipc: drop ipc_lock()
  ipc/util.c: correct comment in ipc_obtain_object_check
  ipc: rename ipcctl_pre_down_nolock()
  ipc/util.c: use ipc_rcu_putref() for failues in ipc_addid()
  ipc: reorganize initialization of kern_ipc_perm.seq
  ipc: compute kern_ipc_perm.id under the ipc lock
  init/Kconfig: remove EXPERT from CHECKPOINT_RESTORE
  fs/sysv/inode.c: use ktime_get_real_seconds() for superblock stamp
  adfs: use timespec64 for time conversion
  kernel/sysctl.c: fix typos in comments
  drivers/rapidio/devices/rio_mport_cdev.c: remove redundant pointer md
  fork: don't copy inconsistent signal handler state to child
  signal: make get_signal() return bool
  signal: make sigkill_pending() return bool
  ...
 2018-08-22 12:34:08 -07:00
Manfred Spraul
e2652ae6bd ipc: reorganize initialization of kern_ipc_perm.seq 
ipc_addid() initializes kern_ipc_perm.seq after having called idr_alloc()
(within ipc_idr_alloc()).

Thus a parallel semop() or msgrcv() that uses ipc_obtain_object_check()
may see an uninitialized value.

The patch moves the initialization of kern_ipc_perm.seq before the calls
of idr_alloc().

Notes:
1) This patch has a user space visible side effect:
If /proc/sys/kernel/*_next_id is used (i.e.: checkpoint/restore) and
if semget()/msgget()/shmget() fails in the final step of adding the id
to the rhash tree, then .._next_id is cleared. Before the patch, is
remained unmodified.

There is no change of the behavior after a successful ..get() call: It
always clears .._next_id, there is no impact to non checkpoint/restore
code as that code does not use .._next_id.

2) The patch correctly documents that after a call to ipc_idr_alloc(),
the full tear-down sequence must be used. The callers of ipc_addid()
do not fullfill that, i.e. more bugfixes are required.

The patch is a squash of a patch from Dmitry and my own changes.

Link: http://lkml.kernel.org/r/20180712185241.4017-3-manfred@colorfullife.com
Reported-by: syzbot+2827ef6b3385deb07eaf@syzkaller.appspotmail.com
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-22 10:52:51 -07:00
Dmitry Vyukov
a2e5144538 kernel/hung_task.c: allow to set checking interval separately from timeout 
Currently task hung checking interval is equal to timeout, as the result
hung is detected anywhere between timeout and 2*timeout.  This is fine for
most interactive environments, but this hurts automated testing setups
(syzbot).  In an automated setup we need to strictly order CPU lockup <
RCU stall < workqueue lockup < task hung < silent loss, so that RCU stall
is not detected as task hung and task hung is not detected as silent
machine loss.  The large variance in task hung detection timeout requires
setting silent machine loss timeout to a very large value (e.g.  if task
hung is 3 mins, then silent loss need to be set to ~7 mins).  The
additional 3 minutes significantly reduce testing efficiency because
usually we crash kernel within a minute, and this can add hours to bug
localization process as it needs to do dozens of tests.

Allow setting checking interval separately from timeout.  This allows to
set timeout to, say, 3 minutes, but checking interval to 10 secs.

The interval is controlled via a new hung_task_check_interval_secs sysctl,
similar to the existing hung_task_timeout_secs sysctl.  The default value
of 0 results in the current behavior: checking interval is equal to
timeout.

[akpm@linux-foundation.org: update hung_task_timeout_max's comment]
Link: http://lkml.kernel.org/r/20180611111004.203513-1-dvyukov@google.com
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-22 10:52:47 -07:00
Dennis Zhou (Facebook)
7e8a6304d5 /proc/meminfo: add percpu populated pages count 
Currently, percpu memory only exposes allocation and utilization
information via debugfs.  This more or less is only really useful for
understanding the fragmentation and allocation information at a per-chunk
level with a few global counters.  This is also gated behind a config.
BPF and cgroup, for example, have seen an increase in use causing
increased use of percpu memory.  Let's make it easier for someone to
identify how much memory is being used.

This patch adds the "Percpu" stat to meminfo to more easily look up how
much percpu memory is in use.  This number includes the cost for all
allocated backing pages and not just insight at the per a unit, per chunk
level.  Metadata is excluded.  I think excluding metadata is fair because
the backing memory scales with the numbere of cpus and can quickly
outweigh the metadata.  It also makes this calculation light.

Link: http://lkml.kernel.org/r/20180807184723.74919-1-dennisszhou@gmail.com
Signed-off-by: Dennis Zhou <dennisszhou@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Roman Gushchin <guro@fb.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-22 10:52:45 -07:00
Roman Gushchin
3d8b38eb81 mm, oom: introduce memory.oom.group 
For some workloads an intervention from the OOM killer can be painful.
Killing a random task can bring the workload into an inconsistent state.

Historically, there are two common solutions for this
problem:
1) enabling panic_on_oom,
2) using a userspace daemon to monitor OOMs and kill
   all outstanding processes.

Both approaches have their downsides: rebooting on each OOM is an obvious
waste of capacity, and handling all in userspace is tricky and requires a
userspace agent, which will monitor all cgroups for OOMs.

In most cases an in-kernel after-OOM cleaning-up mechanism can eliminate
the necessity of enabling panic_on_oom.  Also, it can simplify the cgroup
management for userspace applications.

This commit introduces a new knob for cgroup v2 memory controller:
memory.oom.group.  The knob determines whether the cgroup should be
treated as an indivisible workload by the OOM killer.  If set, all tasks
belonging to the cgroup or to its descendants (if the memory cgroup is not
a leaf cgroup) are killed together or not at all.

To determine which cgroup has to be killed, we do traverse the cgroup
hierarchy from the victim task's cgroup up to the OOMing cgroup (or root)
and looking for the highest-level cgroup with memory.oom.group set.

Tasks with the OOM protection (oom_score_adj set to -1000) are treated as
an exception and are never killed.

This patch doesn't change the OOM victim selection algorithm.

Link: http://lkml.kernel.org/r/20180802003201.817-4-guro@fb.com
Signed-off-by: Roman Gushchin <guro@fb.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-22 10:52:45 -07:00
juviliu
85f237a57f Documentation/sysctl/vm.txt: update __vm_enough_memory()'s path 
__vm_enough_memory has moved to mm/util.c.

Link: http://lkml.kernel.org/r/E18EDF4A4FA4A04BBFA824B6D7699E532A7E5913@EXMBX-SZMAIL013.tencent.com
Signed-off-by: Juvi Liu <juviliu@tencent.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-22 10:52:44 -07:00
Kees Cook
8c9a134cae mm: clarify CONFIG_PAGE_POISONING and usage 
The Kconfig text for CONFIG_PAGE_POISONING doesn't mention that it has to
be enabled explicitly.  This updates the documentation for that and adds a
note about CONFIG_PAGE_POISONING to the "page_poison" command line docs.
While here, change description of CONFIG_PAGE_POISONING_ZERO too, as it's
not "random" data, but rather the fixed debugging value that would be used
when not zeroing.  Additionally removes a stray "bool" in the Kconfig.

Link: http://lkml.kernel.org/r/20180725223832.GA43733@beast
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-22 10:52:44 -07:00
Kunihiko Hayashi
9d2ab99573 ata: libahci_platform: add reset control support 
Add support to get and control a list of resets for the device
as optional and shared. These resets must be kept de-asserted until
the device is enabled.

This is specified as shared because some SoCs like UniPhier series
have common reset controls with all ahci controller instances.

However, according to Thierry's view,
https://www.spinics.net/lists/linux-ide/msg55357.html
some hardware-specific drivers already use their own resets,
and the common reset make a path to occur double controls of resets.

The ahci_platform_get_resources() can get and control the reset
only when the second argument includes AHCI_PLATFORM_GET_RESETS bit.

Suggested-by: Hans de Goede <hdegoede@redhat.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
 2018-08-22 08:08:27 -07:00
Masahiro Yamada
f6f57a4643 initramfs: move gen_initramfs_list.sh from scripts/ to usr/ 
scripts/gen_initramfs_list.sh is only invoked from usr/Makefile.
Move it so that all tools to create initramfs are self-contained
in the usr/ directory.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
 2018-08-22 23:21:44 +09:00
Michal Suchanek
c86b1f9342 kbuild: Fix LOADLIBES rename in Documentation/kbuild/makefiles.txt 
Fixes: 8377bd2b9e ("kbuild: Rename HOST_LOADLIBES to KBUILD_HOSTLDLIBS")
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
 2018-08-22 23:21:42 +09:00
Masahiro Yamada
5e8c5299d3 kconfig: report recursive dependency involving 'imply' 
Currently, Kconfig does not complain about the recursive dependency
where 'imply' keywords are involved.

[Test Code]

  config A
          bool "a"

  config B
          bool "b"
          imply A
          depends on A

In the code above, Kconfig cannot calculate the symbol values correctly
due to the circular dependency.  For example, allyesconfig followed by
syncconfig results in an odd behavior because CONFIG_B becomes visible
in syncconfig.

  $ make allyesconfig
  scripts/kconfig/conf  --allyesconfig Kconfig
  #
  # configuration written to .config
  #
  $ cat .config
  #
  # Automatically generated file; DO NOT EDIT.
  # Main menu
  #
  CONFIG_A=y
  $ make syncconfig
  scripts/kconfig/conf  --syncconfig Kconfig
  *
  * Restart config...
  *
  *
  * Main menu
  *
  a (A) [Y/n/?] y
    b (B) [N/y/?] (NEW)

To detect this correctly, sym_check_expr_deps() should recurse to
not only sym->rev_dep.expr but also sym->implied.expr .

At this moment, sym_check_print_recursive() cannot distinguish
'select' and 'imply' since it does not know the precise context
where the recursive dependency has been hit.  This will be solved
by the next commit.

In fact, even the document and the unit-test are confused.  Using
'imply' does not solve recursive dependency since 'imply' addresses
the unmet direct dependency, which 'select' could cause.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Dirk Gouders <dirk@gouders.net>
 2018-08-22 23:21:39 +09:00
Dongjiu Geng
688e0581db KVM: Documentation: rename the capability of KVM_CAP_ARM_SET_SERROR_ESR 
In the documentation description, this capability's name is
KVM_CAP_ARM_SET_SERROR_ESR, but in the header file this
capability's name is KVM_CAP_ARM_INJECT_SERROR_ESR, so change
the documentation description to make it same.

Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Reported-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2018-08-22 14:08:05 +02:00
Paolo Bonzini
631989303b KVM/arm updates for 4.19 
- Support for Group0 interrupts in guests
 - Cache management optimizations for ARMv8.4 systems
 - Userspace interface for RAS, allowing error retrival and injection
 - Fault path optimization
 - Emulated physical timer fixes
 - Random cleanups
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Merge tag 'kvmarm-for-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm updates for 4.19

- Support for Group0 interrupts in guests
- Cache management optimizations for ARMv8.4 systems
- Userspace interface for RAS, allowing error retrival and injection
- Fault path optimization
- Emulated physical timer fixes
- Random cleanups
 2018-08-22 14:07:56 +02:00
Linus Torvalds
d9a185f8b4 overlayfs update for 4.19 
This contains two new features:
 
  1) Stack file operations: this allows removal of several hacks from the
     VFS, proper interaction of read-only open files with copy-up,
     possibility to implement fs modifying ioctls properly, and others.
 
  2) Metadata only copy-up: when file is on lower layer and only metadata is
     modified (except size) then only copy up the metadata and continue to
     use the data from the lower file.
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Merge tag 'ovl-update-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs

Pull overlayfs updates from Miklos Szeredi:
 "This contains two new features:

   - Stack file operations: this allows removal of several hacks from
     the VFS, proper interaction of read-only open files with copy-up,
     possibility to implement fs modifying ioctls properly, and others.

   - Metadata only copy-up: when file is on lower layer and only
     metadata is modified (except size) then only copy up the metadata
     and continue to use the data from the lower file"

* tag 'ovl-update-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: (66 commits)
  ovl: Enable metadata only feature
  ovl: Do not do metacopy only for ioctl modifying file attr
  ovl: Do not do metadata only copy-up for truncate operation
  ovl: add helper to force data copy-up
  ovl: Check redirect on index as well
  ovl: Set redirect on upper inode when it is linked
  ovl: Set redirect on metacopy files upon rename
  ovl: Do not set dentry type ORIGIN for broken hardlinks
  ovl: Add an inode flag OVL_CONST_INO
  ovl: Treat metacopy dentries as type OVL_PATH_MERGE
  ovl: Check redirects for metacopy files
  ovl: Move some dir related ovl_lookup_single() code in else block
  ovl: Do not expose metacopy only dentry from d_real()
  ovl: Open file with data except for the case of fsync
  ovl: Add helper ovl_inode_realdata()
  ovl: Store lower data inode in ovl_inode
  ovl: Fix ovl_getattr() to get number of blocks from lower
  ovl: Add helper ovl_dentry_lowerdata() to get lower data dentry
  ovl: Copy up meta inode data from lowest data inode
  ovl: Modify ovl_lookup() and friends to lookup metacopy dentry
  ...
 2018-08-21 18:19:09 -07:00
Linus Torvalds
c1fecabecc power supply and reset changes for the v4.19 series 
* Improve support for TI bq20z75 in sbs-battery
 * Add Qualcomm PM8xxx reboot driver
 * Add cros-ec USBPD charger driver
 * Move ds2760 battery driver from w1 to power-supply and add DT support
 * Misc. fixes
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Merge tag 'for-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:

 - Improve support for TI bq20z75 in sbs-battery

 - Add Qualcomm PM8xxx reboot driver

 - Add cros-ec USBPD charger driver

 - Move ds2760 battery driver from w1 to power-supply and add DT support

 - Misc fixes

* tag 'for-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (28 commits)
  power: supply: bq27xxx: Update comments
  power: supply: max77693_charger: fix unintentional fall-through
  power: supply: mark expected switch fall-throughs
  power: supply: lego_ev3_battery: fix Vce offset
  power: supply: lego_ev3_battery: Don't ignore iio_read_channel_processed() return value
  power: supply: ds2760_battery: add devicetree probing
  power: supply: ds2760_battery: merge ds2760 supply driver with its w1 slave companion
  w1: core: match sub-nodes of bus masters in devicetree
  dt-bindings: w1: document bindings for ds2760 battery monitor
  dt-bindings: w1: document generic onewire bindings
  power: supply: adp5061: Fix a couple off by ones
  dt-bindings: power: reset: qcom: Add resin binding
  adp5061: New driver for ADP5061 I2C battery charger
  power: generic-adc-battery: check for duplicate properties copied from iio channels
  power: generic-adc-battery: fix out-of-bounds write when copying channel properties
  power: supply: axp288_charger: Fix initial constant_charge_current value
  power: supply: ab8500: stop using getnstimeofday64()
  power: gemini-poweroff: Avoid more spurious poweroffs
  power: vexpress: fix corruption in notifier registration
  power: remove possible deadlock when unregistering power_supply
  ...
 2018-08-21 18:06:27 -07:00
Linus Torvalds
99cc7ad46b Merge branch 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 
Pull i2c updates from Wolfram Sang:

 - the core has now a lockless variant of i2c_smbus_xfer. Some open
   coded versions of this got removed in drivers. This also enables
   proper SCCB support in regmap.

 - locking got a more precise naming. i2c_{un}lock_adapter() had to go,
   and we know use i2c_lock_bus() consistently with flags like
   I2C_LOCK_ROOT_ADAPTER and I2C_LOCK_SEGMENT to avoid ambiguity.

 - the gpio fault injector got a new delicate testcase

 - the bus recovery procedure got fixed to handle the new testcase
   correctly

 - a new quirk flag for controllers not able to handle zero length
   messages together with driver updates to use it

 - new drivers: FSI bus attached I2C masters, GENI I2C controller, Owl
   family S900

 - and a good set of driver improvements and bugfixes

* 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (77 commits)
  i2c: rcar: implement STOP and REP_START according to docs
  i2c: rcar: refactor private flags
  i2c: core: ACPI: Make acpi_gsb_i2c_read_bytes() check i2c_transfer return value
  i2c: core: ACPI: Properly set status byte to 0 for multi-byte writes
  dt-bindings: i2c: rcar: Add r8a774a1 support
  dt-bindings: i2c: sh_mobile: Add r8a774a1 support
  i2c: imx: Simplify stopped state tracking
  i2c: imx: Fix race condition in dma read
  i2c: pasemi: remove hardcoded bus numbers on smbus
  i2c: designware: Add SPDX license tag
  i2c: designware: Convert to use struct i2c_timings
  i2c: core: Parse SDA hold time from firmware
  i2c: designware-pcidrv: Mark expected switch fall-through
  i2c: amd8111: Mark expected switch fall-through
  i2c: sh_mobile: use core to detect 'no zero length read' quirk
  i2c: xlr: use core to detect 'no zero length' quirk
  i2c: rcar: use core to detect 'no zero length' quirk
  i2c: stu300: use core to detect 'no zero length' quirk
  i2c: pmcmsp: use core to detect 'no zero length' quirk
  i2c: mxs: use core to detect 'no zero length' quirk
  ...
 2018-08-21 17:40:46 -07:00
Jaegeuk Kim
853137cef4 f2fs: fix performance issue observed with multi-thread sequential read 
This reverts the commit - "b93f771 - f2fs: remove writepages lock"
to fix the drop in sequential read throughput.

Test: ./tiotest -t 32 -d /data/tio_tmp -f 32 -b 524288 -k 1 -k 3 -L
device: UFS

Before -
read throughput: 185 MB/s
total read requests: 85177 (of these ~80000 are 4KB size requests).
total write requests: 2546 (of these ~2208 requests are written in 512KB).

After -
read throughput: 758 MB/s
total read requests: 2417 (of these ~2042 are 512KB reads).
total write requests: 2701 (of these ~2034 requests are written in 512KB).

Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
 2018-08-20 23:13:42 -07:00
Linus Torvalds
bfebeb1672 RTC for 4.19 
Subsystem:
  - new helpers to add custom sysfs attributes
  - struct rtc_task removal along with rtc_irq_register/rtc_irq_unregister
  - rtc_irq_set_state and rtc_irq_set_freq are not exported anymore
 
 Drivers:
  - armada38x: reset after rtc power loss
  - ds1307: now supports m41t11
  - isl1208: now supports isl1219 and tamper detection
  - pcf2127: internal SRAM support
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Merge tag 'rtc-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "It is now possible to add custom sysfs attributes while avoiding a
  possible race condition. Unused code has been removed resulting in a
  nice reduction of the code base. And more drivers have been switched
  to SPDX by their maintainers.

 Summary:

  Subsystem:
   - new helpers to add custom sysfs attributes
   - struct rtc_task removal along with rtc_irq_[un]register()
   - rtc_irq_set_state and rtc_irq_set_freq are not exported anymore

  Drivers:
   - armada38x: reset after rtc power loss
   - ds1307: now supports m41t11
   - isl1208: now supports isl1219 and tamper detection
   - pcf2127: internal SRAM support"

* tag 'rtc-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (34 commits)
  rtc: ds1307: simplify hwmon config
  rtc: s5m: Add SPDX license identifier
  rtc: maxim: Add SPDX license identifiers
  rtc: isl1219: add device tree documentation
  rtc: isl1208: set ev-evienb bit from device tree
  rtc: isl1208: Add "evdet" interrupt source for isl1219
  rtc: isl1208: add support for isl1219 with tamper detection
  rtc: sysfs: facilitate attribute add to rtc device
  rtc: remove struct rtc_task
  char: rtc: remove task handling
  rtc: pcf85063: preserve control register value between stop and start
  rtc: sh: remove unused variable rtc_dev
  rtc: unexport rtc_irq_set_*
  rtc: simplify rtc_irq_set_state/rtc_irq_set_freq
  rtc: remove irq_task and irq_task_lock
  rtc: remove rtc_irq_register/rtc_irq_unregister
  rtc: sh: remove dead code
  rtc: sa1100: don't set PIE frequency
  rtc: ds1307: support m41t11 variant
  rtc: ds1307: fix data pointer to m41t0
  ...
 2018-08-20 16:30:27 -07:00
Linus Torvalds
7a324b3f05 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 
Pull HID updates from Jiri Kosina:

 - touch_max detection improvements and quirk handling fixes in wacom
   driver from Jason Gerecke and Ping Cheng

 - Palm rejection from Dmitry Torokhov and _dial support from Benjamin
   Tissoires for hid-multitouch driver

 - Low voltage support for i2c-hid driver from Stephen Boyd

 - Guitar-Hero support from Nicolas Adenis-Lamarre

 - other assorted small fixes and device ID additions

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (40 commits)
  HID: intel_ish-hid: tx_buf memory leak on probe/remove
  HID: intel-ish-hid: Prevent loading of driver on Mehlow
  HID: cougar: Add support for the Cougar 500k Gaming Keyboard
  HID: cougar: make compare_device_paths reusable
  HID: intel-ish-hid: remove redundant variable num_frags
  HID: multitouch: handle palm for touchscreens
  HID: multitouch: touchscreens also use confidence reports
  HID: multitouch: report MT_TOOL_PALM for non-confident touches
  HID: microsoft: support the Surface Dial
  HID: core: do not upper bound the collection stack
  HID: input: enable Totem on the Dell Canvas 27
  HID: multitouch: remove one copy of values
  HID: multitouch: ditch mt_report_id
  HID: multitouch: store a per application quirks value
  HID: multitouch: Store per collection multitouch data
  HID: multitouch: make sure the static list of class is not changed
  input: add MT_TOOL_DIAL
  HID: elan: Add support for touchpad on the Toshiba Click Mini L9W
  HID: elan: Add USB-id for HP x2 10-n000nd touchpad
  HID: elan: Add a flag for selecting if the touchpad has a LED
  ...
 2018-08-20 15:59:01 -07:00
Linus Torvalds
61c4fc1eaf - Core Frameworks 
- Remove unused/obsolete code/comments
 
  - New Functionality
    - Allow less granular brightness specification for high-res PWMs; pwm_bl
    - Align brightness {inc,dec}rements with that perceived by the human-eye; pwm_bl
 
  - Fix-ups
    - Prepare for the introduction of -Wimplicit-fall-through; adp8860_bl
 
  - Bug Fixes
    - Fix uninitialised variable; pwm_bl
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Merge tag 'backlight-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight updates from Lee Jones:
 "Core Framework:
   - Remove unused/obsolete code/comments

  New Functionality:
   - Allow less granular brightness specification for high-res PWMs; pwm_bl
   - Align brightness {inc,dec}rements with that perceived by the human-eye; pwm_bl

  Fix-ups:
   - Prepare for the introduction of -Wimplicit-fall-through; adp8860_bl

  Bug Fixes:
   - Fix uninitialised variable; pwm_bl"

* tag 'backlight-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: pwm_bl: Fix uninitialized variable
  backlight: adp8860: Mark expected switch fall-through
  backlight: Remove obsolete comment for ->state
  dt-bindings: pwm-backlight: Move brightness-levels to optional
  backlight: pwm_bl: Compute brightness of LED linearly to human eye
  dt-bindings: pwm-backlight: Add a num-interpolation-steps property
  backlight: pwm_bl: Linear interpolation between brightness-levels
 2018-08-20 15:41:37 -07:00
Linus Torvalds
532c2b926d - New Drivers 
- Add Cirrus Logic Madera Codec (CS47L35, CS47L85 and CS47L90/91) driver
    - Add ChromeOS EC CEC driver
    - Add ROHM BD71837 PMIC driver
 
  - New Device Support
    - Add support for Dialog Semi DA9063L PMIC variant to DA9063
    - Add support for Intel Ice Lake to Intel-PLSS-PCI
    - Add support for X-Powers AXP806 to AXP20x
 
  - New Functionality
    - Add support for USB Charging to the ChromeOS Embedded Controller
    - Add support for HDMI CEC to the ChromeOS Embedded Controller
    - Add support for HDMI CEC to Intel HDMI
    - Add support for accessory detection to Madera devices
    - Allow individual pins to be configured via DT' wlf,csnaddr-pd
    - Provide legacy platform specific EEPROM/Watchdog commands; rave-sp
 
  - Fix-ups
    - Trivial renaming/spelling fixes; cros_ec, da9063-*
    - Convert to Managed Resources (devm_*); da9063-*, ti_am335x_tscadc
    - Transition to helper macros/functions; da9063-*
    - Constify; kempld-core
    - Improve error path/messages; wm8994-core
    - Disable IRQs locally instead of relying on USB subsystem; dln2
    - Remove unused code; rave-sp
    - New exports; sec-core
 
  - Bug Fixes
    - Fix possible false I2C transaction error; arizona-core
    - Fix declared memory area size; hi655x-pmic
    - Fix checksum type; rave-sp
    - Fix incorrect default serial port configuration: rave-sp
    - Fix incorrect coherent DMA mask for sub-devices; sm501
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Merge tag 'mfd-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Add Cirrus Logic Madera Codec (CS47L35, CS47L85 and CS47L90/91) driver
   - Add ChromeOS EC CEC driver
   - Add ROHM BD71837 PMIC driver

  New Device Support:
   - Add support for Dialog Semi DA9063L PMIC variant to DA9063
   - Add support for Intel Ice Lake to Intel-PLSS-PCI
   - Add support for X-Powers AXP806 to AXP20x

  New Functionality:
   - Add support for USB Charging to the ChromeOS Embedded Controller
   - Add support for HDMI CEC to the ChromeOS Embedded Controller
   - Add support for HDMI CEC to Intel HDMI
   - Add support for accessory detection to Madera devices
   - Allow individual pins to be configured via DT' wlf,csnaddr-pd
   - Provide legacy platform specific EEPROM/Watchdog commands; rave-sp

  Fix-upsL
   - Trivial renaming/spelling fixes; cros_ec, da9063-*
   - Convert to Managed Resources (devm_*); da9063-*, ti_am335x_tscadc
   - Transition to helper macros/functions; da9063-*
   - Constify; kempld-core
   - Improve error path/messages; wm8994-core
   - Disable IRQs locally instead of relying on USB subsystem; dln2
   - Remove unused code; rave-sp
   - New exports; sec-core

  Bug Fixes:
   - Fix possible false I2C transaction error; arizona-core
   - Fix declared memory area size; hi655x-pmic
   - Fix checksum type; rave-sp
   - Fix incorrect default serial port configuration: rave-sp
   - Fix incorrect coherent DMA mask for sub-devices; sm501"

* tag 'mfd-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (60 commits)
  mfd: madera: Add register definitions for accessory detect
  mfd: sm501: Set coherent_dma_mask when creating subdevices
  mfd: bd71837: Devicetree bindings for ROHM BD71837 PMIC
  mfd: bd71837: Core driver for ROHM BD71837 PMIC
  media: platform: cros-ec-cec: Fix dependency on MFD_CROS_EC
  mfd: sec-core: Export OF module alias table
  mfd: as3722: Disable auto-power-on when AC OK
  mfd: axp20x: Support AXP806 in I2C mode
  mfd: axp20x: Add self-working mode support for AXP806
  dt-bindings: mfd: axp20x: Add "self-working" mode for AXP806
  mfd: wm8994: Allow to configure CS/ADDR Pulldown from dts
  mfd: wm8994: Allow to configure Speaker Mode Pullup from dts
  mfd: rave-sp: Emulate CMD_GET_STATUS on device that don't support it
  mfd: rave-sp: Add legacy watchdog ping command translation
  mfd: rave-sp: Add legacy EEPROM access command translation
  mfd: rave-sp: Initialize flow control and parity of the port
  mfd: rave-sp: Fix incorrectly specified checksum type
  mfd: rave-sp: Remove unused defines
  mfd: hi655x: Fix regmap area declared size for hi655x
  mfd: ti_am335x_tscadc: Fix struct clk memory leak
  ...
 2018-08-20 15:38:44 -07:00
Joe Perches
cafa0010cd Raise the minimum required gcc version to 4.6 
Various architectures fail to build properly with older versions of the
gcc compiler.

An example from Guenter Roeck in thread [1]:
>
>   In file included from ./include/linux/mm.h:17:0,
>                    from ./include/linux/pid_namespace.h:7,
>                    from ./include/linux/ptrace.h:10,
>                    from arch/openrisc/kernel/asm-offsets.c:32:
>   ./include/linux/mm_types.h:497:16: error: flexible array member in otherwise empty struct
>
> This is just an example with gcc 4.5.1 for or32. I have seen the problem
> with gcc 4.4 (for unicore32) as well.

So update the minimum required version of gcc to 4.6.

[1] https://lore.kernel.org/lkml/20180814170904.GA12768@roeck-us.net/

Miscellanea:

 - Update Documentation/process/changes.rst

 - Remove and consolidate version test blocks in compiler-gcc.h for
   versions lower than 4.6

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-20 14:12:38 -07:00
Jiri Kosina
16501e846d Merge branch 'for-4.19/multitouch-multiaxis' into for-linus 
Multitouch updates:

- Dial support
- Palm rejection for touchscreens
- a few small assorted fixes
 2018-08-20 18:09:06 +02:00