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Commits on Jan 7, 2019
  1. ARM: Vita: Add defconfig

    xerpi committed Dec 23, 2018
  2. arm: Vita: set PHYS_OFFSET

    xerpi committed Dec 21, 2018
  3. arm: Add initial PSVita support

    xerpi committed Dec 19, 2018
    Signed-off-by: Sergi Granell <xerpi.g.12@gmail.com>
  4. arch: restore generic-y += shmparam.h for some architectures

    masahir0y authored and torvalds committed Jan 7, 2019
    For some reasons, I accidentally got rid of "generic-y += shmparam.h"
    from some architectures.
    
    Restore them to fix building c6x, h8300, hexagon, m68k, microblaze,
    openrisc, and unicore32.
    
    Fixes: d6e4b3e ("arch: remove redundant UAPI generic-y defines")
    Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  5. Linux 5.0-rc1

    torvalds committed Jan 7, 2019
  6. Merge tag 'kbuild-v4.21-3' of git://git.kernel.org/pub/scm/linux/kern…

    torvalds committed Jan 7, 2019
    …el/git/masahiroy/linux-kbuild
    
    Pull more Kbuild updates from Masahiro Yamada:
    
     - improve boolinit.cocci and use_after_iter.cocci semantic patches
    
     - fix alignment for kallsyms
    
     - move 'asm goto' compiler test to Kconfig and clean up jump_label
       CONFIG option
    
     - generate asm-generic wrappers automatically if arch does not
       implement mandatory UAPI headers
    
     - remove redundant generic-y defines
    
     - misc cleanups
    
    * tag 'kbuild-v4.21-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
      kconfig: rename generated .*conf-cfg to *conf-cfg
      kbuild: remove unnecessary stubs for archheader and archscripts
      kbuild: use assignment instead of define ... endef for filechk_* rules
      arch: remove redundant UAPI generic-y defines
      kbuild: generate asm-generic wrappers if mandatory headers are missing
      arch: remove stale comments "UAPI Header export list"
      riscv: remove redundant kernel-space generic-y
      kbuild: change filechk to surround the given command with { }
      kbuild: remove redundant target cleaning on failure
      kbuild: clean up rule_dtc_dt_yaml
      kbuild: remove UIMAGE_IN and UIMAGE_OUT
      jump_label: move 'asm goto' support test to Kconfig
      kallsyms: lower alignment on ARM
      scripts: coccinelle: boolinit: drop warnings on named constants
      scripts: coccinelle: check for redeclaration
      kconfig: remove unused "file" field of yylval union
      nds32: remove redundant kernel-space generic-y
      nios2: remove unneeded HAS_DMA define
  7. Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/…

    torvalds committed Jan 7, 2019
    …linux/kernel/git/tip/tip
    
    Pull perf tooling updates form Ingo Molnar:
     "A final batch of perf tooling changes: mostly fixes and small
      improvements"
    
    * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (29 commits)
      perf session: Add comment for perf_session__register_idle_thread()
      perf thread-stack: Fix thread stack processing for the idle task
      perf thread-stack: Allocate an array of thread stacks
      perf thread-stack: Factor out thread_stack__init()
      perf thread-stack: Allow for a thread stack array
      perf thread-stack: Avoid direct reference to the thread's stack
      perf thread-stack: Tidy thread_stack__bottom() usage
      perf thread-stack: Simplify some code in thread_stack__process()
      tools gpio: Allow overriding CFLAGS
      tools power turbostat: Override CFLAGS assignments and add LDFLAGS to build command
      tools thermal tmon: Allow overriding CFLAGS assignments
      tools power x86_energy_perf_policy: Override CFLAGS assignments and add LDFLAGS to build command
      perf c2c: Increase the HITM ratio limit for displayed cachelines
      perf c2c: Change the default coalesce setup
      perf trace beauty ioctl: Beautify USBDEVFS_ commands
      perf trace beauty: Export function to get the files for a thread
      perf trace: Wire up ioctl's USBDEBFS_ cmd table generator
      perf beauty ioctl: Add generator for USBDEVFS_ ioctl commands
      tools headers uapi: Grab a copy of usbdevice_fs.h
      perf trace: Store the major number for a file when storing its pathname
      ...
Commits on Jan 6, 2019
  1. Change mincore() to count "mapped" pages rather than "cached" pages

    torvalds committed Jan 6, 2019
    The semantics of what "in core" means for the mincore() system call are
    somewhat unclear, but Linux has always (since 2.3.52, which is when
    mincore() was initially done) treated it as "page is available in page
    cache" rather than "page is mapped in the mapping".
    
    The problem with that traditional semantic is that it exposes a lot of
    system cache state that it really probably shouldn't, and that users
    shouldn't really even care about.
    
    So let's try to avoid that information leak by simply changing the
    semantics to be that mincore() counts actual mapped pages, not pages
    that might be cheaply mapped if they were faulted (note the "might be"
    part of the old semantics: being in the cache doesn't actually guarantee
    that you can access them without IO anyway, since things like network
    filesystems may have to revalidate the cache before use).
    
    In many ways the old semantics were somewhat insane even aside from the
    information leak issue.  From the very beginning (and that beginning is
    a long time ago: 2.3.52 was released in March 2000, I think), the code
    had a comment saying
    
      Later we can get more picky about what "in core" means precisely.
    
    and this is that "later".  Admittedly it is much later than is really
    comfortable.
    
    NOTE! This is a real semantic change, and it is for example known to
    change the output of "fincore", since that program literally does a
    mmmap without populating it, and then doing "mincore()" on that mapping
    that doesn't actually have any pages in it.
    
    I'm hoping that nobody actually has any workflow that cares, and the
    info leak is real.
    
    We may have to do something different if it turns out that people have
    valid reasons to want the old semantics, and if we can limit the
    information leak sanely.
    
    Cc: Kevin Easton <kevin@guarana.org>
    Cc: Jiri Kosina <jikos@kernel.org>
    Cc: Masatake YAMATO <yamato@redhat.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Greg KH <gregkh@linuxfoundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Michal Hocko <mhocko@suse.com>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  2. Fix 'acccess_ok()' on alpha and SH

    torvalds committed Jan 6, 2019
    Commit 594cc25 ("make 'user_access_begin()' do 'access_ok()'")
    broke both alpha and SH booting in qemu, as noticed by Guenter Roeck.
    
    It turns out that the bug wasn't actually in that commit itself (which
    would have been surprising: it was mostly a no-op), but in how the
    addition of access_ok() to the strncpy_from_user() and strnlen_user()
    functions now triggered the case where those functions would test the
    access of the very last byte of the user address space.
    
    The string functions actually did that user range test before too, but
    they did it manually by just comparing against user_addr_max().  But
    with user_access_begin() doing the check (using "access_ok()"), it now
    exposed problems in the architecture implementations of that function.
    
    For example, on alpha, the access_ok() helper macro looked like this:
    
      #define __access_ok(addr, size) \
            ((get_fs().seg & (addr | size | (addr+size))) == 0)
    
    and what it basically tests is of any of the high bits get set (the
    USER_DS masking value is 0xfffffc0000000000).
    
    And that's completely wrong for the "addr+size" check.  Because it's
    off-by-one for the case where we check to the very end of the user
    address space, which is exactly what the strn*_user() functions do.
    
    Why? Because "addr+size" will be exactly the size of the address space,
    so trying to access the last byte of the user address space will fail
    the __access_ok() check, even though it shouldn't.  As a result, the
    user string accessor functions failed consistently - because they
    literally don't know how long the string is going to be, and the max
    access is going to be that last byte of the user address space.
    
    Side note: that alpha macro is buggy for another reason too - it re-uses
    the arguments twice.
    
    And SH has another version of almost the exact same bug:
    
      #define __addr_ok(addr) \
            ((unsigned long __force)(addr) < current_thread_info()->addr_limit.seg)
    
    so far so good: yes, a user address must be below the limit.  But then:
    
      #define __access_ok(addr, size)         \
            (__addr_ok((addr) + (size)))
    
    is wrong with the exact same off-by-one case: the case when "addr+size"
    is exactly _equal_ to the limit is actually perfectly fine (think "one
    byte access at the last address of the user address space")
    
    The SH version is actually seriously buggy in another way: it doesn't
    actually check for overflow, even though it did copy the _comment_ that
    talks about overflow.
    
    So it turns out that both SH and alpha actually have completely buggy
    implementations of access_ok(), but they happened to work in practice
    (although the SH overflow one is a serious serious security bug, not
    that anybody likely cares about SH security).
    
    This fixes the problems by using a similar macro on both alpha and SH.
    It isn't trying to be clever, the end address is based on this logic:
    
            unsigned long __ao_end = __ao_a + __ao_b - !!__ao_b;
    
    which basically says "add start and length, and then subtract one unless
    the length was zero".  We can't subtract one for a zero length, or we'd
    just hit an underflow instead.
    
    For a lot of access_ok() users the length is a constant, so this isn't
    actually as expensive as it initially looks.
    
    Reported-and-tested-by: Guenter Roeck <linux@roeck-us.net>
    Cc: Matt Turner <mattst88@gmail.com>
    Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  3. Merge tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/k…

    torvalds committed Jan 6, 2019
    …ernel/git/tytso/fscrypt
    
    Pull fscrypt updates from Ted Ts'o:
     "Add Adiantum support for fscrypt"
    
    * tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt:
      fscrypt: add Adiantum support
  4. Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/lin…

    torvalds committed Jan 6, 2019
    …ux/kernel/git/tytso/ext4
    
    Pull ext4 bug fixes from Ted Ts'o:
     "Fix a number of ext4 bugs"
    
    * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
      ext4: fix special inode number checks in __ext4_iget()
      ext4: track writeback errors using the generic tracking infrastructure
      ext4: use ext4_write_inode() when fsyncing w/o a journal
      ext4: avoid kernel warning when writing the superblock to a dead device
      ext4: fix a potential fiemap/page fault deadlock w/ inline_data
      ext4: make sure enough credits are reserved for dioread_nolock writes
  5. Merge tag 'dma-mapping-4.21-1' of git://git.infradead.org/users/hch/d…

    torvalds committed Jan 6, 2019
    …ma-mapping
    
    Pull dma-mapping fixes from Christoph Hellwig:
     "Fix various regressions introduced in this cycles:
    
       - fix dma-debug tracking for the map_page / map_single
         consolidatation
    
       - properly stub out DMA mapping symbols for !HAS_DMA builds to avoid
         link failures
    
       - fix AMD Gart direct mappings
    
       - setup the dma address for no kernel mappings using the remap
         allocator"
    
    * tag 'dma-mapping-4.21-1' of git://git.infradead.org/users/hch/dma-mapping:
      dma-direct: fix DMA_ATTR_NO_KERNEL_MAPPING for remapped allocations
      x86/amd_gart: fix unmapping of non-GART mappings
      dma-mapping: remove a few unused exports
      dma-mapping: properly stub out the DMA API for !CONFIG_HAS_DMA
      dma-mapping: remove dmam_{declare,release}_coherent_memory
      dma-mapping: implement dmam_alloc_coherent using dmam_alloc_attrs
      dma-mapping: implement dma_map_single_attrs using dma_map_page_attrs
  6. Merge tag 'tag-chrome-platform-for-v4.21' of git://git.kernel.org/pub…

    torvalds committed Jan 6, 2019
    …/scm/linux/kernel/git/bleung/chrome-platform
    
    Pull chrome platform updates from Benson Leung:
    
     - Changes for EC_MKBP_EVENT_SENSOR_FIFO handling.
    
     - Also, maintainership changes. Olofj out, Enric balletbo in.
    
    * tag 'tag-chrome-platform-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform:
      MAINTAINERS: add maintainers for ChromeOS EC sub-drivers
      MAINTAINERS: platform/chrome: Add Enric as a maintainer
      MAINTAINERS: platform/chrome: remove myself as maintainer
      platform/chrome: don't report EC_MKBP_EVENT_SENSOR_FIFO as wakeup
      platform/chrome: straighten out cros_ec_get_{next,host}_event() error codes
  7. Merge tag 'hwlock-v4.21' of git://github.com/andersson/remoteproc

    torvalds committed Jan 6, 2019
    Pull hwspinlock updates from Bjorn Andersson:
     "This adds support for the hardware semaphores found in STM32MP1"
    
    * tag 'hwlock-v4.21' of git://github.com/andersson/remoteproc:
      hwspinlock: fix return value check in stm32_hwspinlock_probe()
      hwspinlock: add STM32 hwspinlock device
      dt-bindings: hwlock: Document STM32 hwspinlock bindings
  8. fscrypt: add Adiantum support

    ebiggers authored and tytso committed Jan 6, 2019
    Add support for the Adiantum encryption mode to fscrypt.  Adiantum is a
    tweakable, length-preserving encryption mode with security provably
    reducible to that of XChaCha12 and AES-256, subject to a security bound.
    It's also a true wide-block mode, unlike XTS.  See the paper
    "Adiantum: length-preserving encryption for entry-level processors"
    (https://eprint.iacr.org/2018/720.pdf) for more details.  Also see
    commit 059c2a4 ("crypto: adiantum - add Adiantum support").
    
    On sufficiently long messages, Adiantum's bottlenecks are XChaCha12 and
    the NH hash function.  These algorithms are fast even on processors
    without dedicated crypto instructions.  Adiantum makes it feasible to
    enable storage encryption on low-end mobile devices that lack AES
    instructions; currently such devices are unencrypted.  On ARM Cortex-A7,
    on 4096-byte messages Adiantum encryption is about 4 times faster than
    AES-256-XTS encryption; decryption is about 5 times faster.
    
    In fscrypt, Adiantum is suitable for encrypting both file contents and
    names.  With filenames, it fixes a known weakness: when two filenames in
    a directory share a common prefix of >= 16 bytes, with CTS-CBC their
    encrypted filenames share a common prefix too, leaking information.
    Adiantum does not have this problem.
    
    Since Adiantum also accepts long tweaks (IVs), it's also safe to use the
    master key directly for Adiantum encryption rather than deriving
    per-file keys, provided that the per-file nonce is included in the IVs
    and the master key isn't used for any other encryption mode.  This
    configuration saves memory and improves performance.  A new fscrypt
    policy flag is added to allow users to opt-in to this configuration.
    
    Signed-off-by: Eric Biggers <ebiggers@google.com>
    Signed-off-by: Theodore Ts'o <tytso@mit.edu>
  9. Merge tag 'docs-5.0-fixes' of git://git.lwn.net/linux

    torvalds committed Jan 6, 2019
    Pull documentation fixes from Jonathan Corbet:
     "A handful of late-arriving documentation fixes"
    
    * tag 'docs-5.0-fixes' of git://git.lwn.net/linux:
      doc: filesystems: fix bad references to nonexistent ext4.rst file
      Documentation/admin-guide: update URL of LKML information link
      Docs/kernel-api.rst: Remove blk-tag.c reference
  10. Merge tag 'firewire-update' of git://git.kernel.org/pub/scm/linux/ker…

    torvalds committed Jan 6, 2019
    …nel/git/ieee1394/linux1394
    
    Pull firewire fixlet from Stefan Richter:
     "Remove an explicit dependency in Kconfig which is implied by another
      dependency"
    
    * tag 'firewire-update' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
      firewire: Remove depends on HAS_DMA in case of platform dependency
  11. Merge tag 'for-linus-20190104' of git://git.kernel.dk/linux-block

    torvalds committed Jan 6, 2019
    Pull block updates and fixes from Jens Axboe:
    
     - Pulled in MD changes that Shaohua had queued up for 4.21.
    
       Unfortunately we lost Shaohua late 2018, I'm sending these in on his
       behalf.
    
     - In conjunction with the above, I added a CREDITS entry for Shaoua.
    
     - sunvdc queue restart fix (Ming)
    
    * tag 'for-linus-20190104' of git://git.kernel.dk/linux-block:
      Add CREDITS entry for Shaohua Li
      block: sunvdc: don't run hw queue synchronously from irq context
      md: fix raid10 hang issue caused by barrier
      raid10: refactor common wait code from regular read/write request
      md: remvoe redundant condition check
      lib/raid6: add option to skip algo benchmarking
      lib/raid6: sort algos in rough performance order
      lib/raid6: check for assembler SSSE3 support
      lib/raid6: avoid __attribute_const__ redefinition
      lib/raid6: add missing include for raid6test
      md: remove set but not used variable 'bi_rdev'
  12. Merge tag 'drm-next-2019-01-05' of git://anongit.freedesktop.org/drm/drm

    torvalds committed Jan 6, 2019
    Pull drm fixes from Dave Airlie:
     "Happy New Year, just decloaking from leave to get some stuff from the
      last week in before rc1:
    
      core:
       - two regression fixes for damage blob and atomic
    
      i915 gvt:
       - Some missed GVT fixes from the original pull
    
      amdgpu:
       - new PCI IDs
       - SR-IOV fixes
       - DC fixes
       - Vega20 fixes"
    
    * tag 'drm-next-2019-01-05' of git://anongit.freedesktop.org/drm/drm: (53 commits)
      drm: Put damage blob when destroy plane state
      drm: fix null pointer dereference on null state pointer
      drm/amdgpu: Add new VegaM pci id
      drm/ttm: Use drm_debug_printer for all ttm_bo_mem_space_debug output
      drm/amdgpu: add Vega20 PSP ASD firmware loading
      drm/amd/display: Fix MST dp_blank REG_WAIT timeout
      drm/amd/display: validate extended dongle caps
      drm/amd/display: Use div_u64 for flip timestamp ns to ms
      drm/amdgpu/uvd:Change uvd ring name convention
      drm/amd/powerplay: add Vega20 LCLK DPM level setting support
      drm/amdgpu: print process info when job timeout
      drm/amdgpu/nbio7.4: add hw bug workaround for vega20
      drm/amdgpu/nbio6.1: add hw bug workaround for vega10/12
      drm/amd/display: Optimize passive update planes.
      drm/amd/display: verify lane status before exiting verify link cap
      drm/amd/display: Fix bug with not updating VSP infoframe
      drm/amd/display: Add retry to read ddc_clock pin
      drm/amd/display: Don't skip link training for empty dongle
      drm/amd/display: Wait edp HPD to high in detect_sink
      drm/amd/display: fix surface update sequence
      ...
  13. Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/gi…

    torvalds committed Jan 6, 2019
    …t/rdma/rdma
    
    Pull rdma fixes from Jason Gunthorpe:
     "Over the break a few defects were found, so this is a -rc style pull
      request of various small things that have been posted.
    
       - An attempt to shorten RCU grace period driven delays showed crashes
         during heavier testing, and has been entirely reverted
    
       - A missed merge/rebase error between the advise_mr and ib_device_ops
         series
    
       - Some small static analysis driven fixes from Julia and Aditya
    
       - Missed ability to create a XRC_INI in the devx verbs interop
         series"
    
    * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
      infiniband/qedr: Potential null ptr dereference of qp
      infiniband: bnxt_re: qplib: Check the return value of send_message
      IB/ipoib: drop useless LIST_HEAD
      IB/core: Add advise_mr to the list of known ops
      Revert "IB/mlx5: Fix long EEH recover time with NVMe offloads"
      IB/mlx5: Allow XRC INI usage via verbs in DEVX context
  14. Merge tag 'fbdev-v4.21' of git://github.com/bzolnier/linux

    torvalds committed Jan 6, 2019
    Pull fbdev updates from Bartlomiej Zolnierkiewicz:
     "This time the pull request is really small.
    
      The most notable changes are fixing fbcon to not cause crash on
      unregister_framebuffer() operation when there is more than one
      framebuffer, adding config option to center the bootup logo and making
      FB_BACKLIGHT config option tristate (which in turn uncovered incorrect
      FB_BACKLIGHT usage by DRM's nouveau driver).
    
      Summary:
    
       - fix fbcon to not cause crash on unregister_framebuffer() when there
         is more than one framebuffer (Noralf Trønnes)
    
       - improve support for small rotated displays (Peter Rosin)
    
       - fix probe failure handling in udlfb driver (Dan Carpenter)
    
       - add config option to center the bootup logo (Peter Rosin)
    
       - make FB_BACKLIGHT config option tristate (Rob Clark)
    
       - remove superfluous HAS_DMA dependency for goldfishfb driver (Geert
         Uytterhoeven)
    
       - misc fixes (Alexey Khoroshilov, YueHaibing, Colin Ian King, Lubomir
         Rintel)
    
       - misc cleanups (Yangtao Li, Wen Yang)
    
      also there is DRM's nouveau driver fix for wrong FB_BACKLIGHT config
      option usage (FB_BACKLIGHT is for internal fbdev subsystem use only)"
    
    * tag 'fbdev-v4.21' of git://github.com/bzolnier/linux:
      drm/nouveau: fix incorrect FB_BACKLIGHT usage in Kconfig
      fbdev: fbcon: Fix unregister crash when more than one framebuffer
      fbdev: Remove depends on HAS_DMA in case of platform dependency
      pxa168fb: trivial typo fix
      fbdev: fsl-diu: remove redundant null check on cmap
      fbdev: omap2: omapfb: convert to DEFINE_SHOW_ATTRIBUTE
      fbdev: uvesafb: fix spelling mistake "memoery" -> "memory"
      fbdev: fbmem: add config option to center the bootup logo
      fbdev: fbmem: make fb_show_logo_line return the end instead of the height
      video: fbdev: pxafb: Fix "WARNING: invalid free of devm_ allocated data"
      fbdev: fbmem: behave better with small rotated displays and many CPUs
      video: clps711x-fb: release disp device node in probe()
      fbdev: make FB_BACKLIGHT a tristate
      udlfb: fix some inconsistent NULL checking
  15. Merge branch 'i2c/for-5.0' of git://git.kernel.org/pub/scm/linux/kern…

    torvalds committed Jan 6, 2019
    …el/git/wsa/linux
    
    Pull i2c updates from Wolfram Sang:
     "I2C has only driver updates for you this time.
    
      Mostly new IDs/DT compatibles, also SPDX conversions, small cleanups.
      STM32F7 got FastMode+ and PM support, Axxia some reliabilty
      improvements"
    
    * 'i2c/for-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (26 commits)
      i2c: Add Actions Semiconductor Owl family S700 I2C support
      dt-bindings: i2c: Add S700 support for Actions Semi Soc's
      i2c: ismt: Add support for Intel Cedar Fork
      i2c: tegra: Switch to SPDX identifier
      i2c: tegra: Add missing kerneldoc for some fields
      i2c: tegra: Cleanup kerneldoc comments
      i2c: axxia: support sequence command mode
      dt-bindings: i2c: rcar: Add r8a774c0 support
      dt-bindings: i2c: sh_mobile: Add r8a774c0 support
      i2c: sh_mobile: Add support for r8a774c0 (RZ/G2E)
      i2c: i2c-cros-ec-tunnel: Switch to SPDX identifier.
      i2c: powermac: Use of_node_name_eq for node name comparisons
      i2c-axxia: check for error conditions first
      i2c-axxia: dedicated function to set client addr
      dt-bindings: i2c: Use correct vendor prefix for Atmel
      i2c: tegra: replace spin_lock_irqsave with spin_lock in ISR
      eeprom: at24: add support for 24c2048
      dt-bindings: eeprom: at24: add "atmel,24c2048" compatible string
      i2c: i2c-stm32f7: add PM Runtime support
      i2c: sh_mobile: add support for r8a77990 (R-Car E3)
      ...
  16. Merge tag 'pci-v4.21-changes' of git://git.kernel.org/pub/scm/linux/k…

    torvalds committed Jan 6, 2019
    …ernel/git/helgaas/pci
    
    Pull PCI updates from Bjorn Helgaas:
    
     - Remove unused lists from ASPM pcie_link_state (Frederick Lawler)
    
     - Fix Broadcom CNB20LE host bridge unintended sign extension (Colin Ian
       King)
    
     - Expand Kconfig "PF" acronyms (Randy Dunlap)
    
     - Update MAINTAINERS for arch/x86/kernel/early-quirks.c (Bjorn Helgaas)
    
     - Add missing include to drivers/pci.h (Alexandru Gagniuc)
    
     - Override Synopsys USB 3.x HAPS device class so dwc3-haps can claim it
       instead of xhci (Thinh Nguyen)
    
     - Clean up P2PDMA documentation (Randy Dunlap)
    
     - Allow runtime PM even if driver doesn't supply callbacks (Jarkko
       Nikula)
    
     - Remove status check after submitting Switchtec MRPC Firmware Download
       commands to avoid Completion Timeouts (Kelvin Cao)
    
     - Set Switchtec coherent DMA mask to allow 64-bit DMA (Boris Glimcher)
    
     - Fix Switchtec SWITCHTEC_IOCTL_EVENT_IDX_ALL flag overwrite issue
       (Joey Zhang)
    
     - Enable write combining for Switchtec MRPC Input buffers (Kelvin Cao)
    
     - Add Switchtec MRPC DMA mode support (Wesley Sheng)
    
     - Skip VF scanning on powerpc, which does this in firmware (Sebastian
       Ott)
    
     - Add Amlogic Meson PCIe controller driver and DT bindings (Yue Wang)
    
     - Constify histb dw_pcie_host_ops structure (Julia Lawall)
    
     - Support multiple power domains for imx6 (Leonard Crestez)
    
     - Constify layerscape driver data (Stefan Agner)
    
     - Update imx6 Kconfig to allow imx6 PCIe in imx7 kernel (Trent Piepho)
    
     - Support armada8k GPIO reset (Baruch Siach)
    
     - Support suspend/resume support on imx6 (Leonard Crestez)
    
     - Don't hard-code DesignWare DBI/ATU offst (Stephen Warren)
    
     - Skip i.MX6 PHY setup on i.MX7D (Andrey Smirnov)
    
     - Remove Jianguo Sun from HiSilicon STB maintainers (Lorenzo Pieralisi)
    
     - Mask DesignWare interrupts instead of disabling them to avoid lost
       interrupts (Marc Zyngier)
    
     - Add locking when acking DesignWare interrupts (Marc Zyngier)
    
     - Ack DesignWare interrupts in the proper callbacks (Marc Zyngier)
    
     - Use devm resource parser in mediatek (Honghui Zhang)
    
     - Remove unused mediatek "num-lanes" DT property (Honghui Zhang)
    
     - Add UniPhier PCIe controller driver and DT bindings (Kunihiko
       Hayashi)
    
     - Enable MSI for imx6 downstream components (Richard Zhu)
    
    * tag 'pci-v4.21-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (40 commits)
      PCI: imx: Enable MSI from downstream components
      s390/pci: skip VF scanning
      PCI/IOV: Add flag so platforms can skip VF scanning
      PCI/IOV: Factor out sriov_add_vfs()
      PCI: uniphier: Add UniPhier PCIe host controller support
      dt-bindings: PCI: Add UniPhier PCIe host controller description
      PCI: amlogic: Add the Amlogic Meson PCIe controller driver
      dt-bindings: PCI: meson: add DT bindings for Amlogic Meson PCIe controller
      arm64: dts: mt7622: Remove un-used property for PCIe
      arm: dts: mt7623: Remove un-used property for PCIe
      dt-bindings: PCI: MediaTek: Remove un-used property
      PCI: mediatek: Remove un-used variant in struct mtk_pcie_port
      MAINTAINERS: Remove Jianguo Sun from HiSilicon STB DWC entry
      PCI: dwc: Don't hard-code DBI/ATU offset
      PCI: imx: Add imx6sx suspend/resume support
      PCI: armada8k: Add support for gpio controlled reset signal
      PCI: dwc: Adjust Kconfig to allow IMX6 PCIe host on IMX7
      PCI: dwc: layerscape: Constify driver data
      PCI: imx: Add multi-pd support
      PCI: Override Synopsys USB 3.x HAPS device class
      ...
  17. Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

    torvalds committed Jan 6, 2019
    …/git/hid/hid
    
    Pull HID updates from Jiri Kosina:
    
     - high-resolution scrolling support that gracefully handles differences
       between MS and Logitech implementations in HW, from Peter Hutterer
       and Harry Cutts
    
     - MSI IRQ support for intel-ish driver, from Song Hongyan
    
     - support for new hardware (Cougar 700K, Odys Winbook 13, ASUS FX503VD,
       ASUS T101HA) from Daniel M. Lambea, Hans de Goede and Aleix Roca
       Nonell
    
     - other small assorted fixups
    
    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (22 commits)
      HID: i2c-hid: Add Odys Winbook 13 to descriptor override
      HID: lenovo: Add checks to fix of_led_classdev_register
      HID: intel-ish-hid: add MSI interrupt support
      HID: debug: Change to use DEFINE_SHOW_ATTRIBUTE macro
      HID: doc: fix wrong data structure reference for UHID_OUTPUT
      HID: intel-ish-hid: fixes incorrect error handling
      HID: asus: Add support for the ASUS T101HA keyboard dock
      HID: logitech: Use LDJ_DEVICE macro for existing Logitech mice
      HID: logitech: Enable high-resolution scrolling on Logitech mice
      HID: logitech: Add function to enable HID++ 1.0 "scrolling acceleration"
      HID: logitech-hidpp: fix typo, hiddpp to hidpp
      HID: input: use the Resolution Multiplier for high-resolution scrolling
      HID: core: process the Resolution Multiplier
      HID: core: store the collections as a basic tree
      Input: add `REL_WHEEL_HI_RES` and `REL_HWHEEL_HI_RES`
      HID: input: support Microsoft wireless radio control hotkey
      HID: use macros in IS_INPUT_APPLICATION
      HID: asus: Add support for the ASUS FX503VD laptop
      HID: asus: Add event handler to catch unmapped Asus Vendor UsagePage codes
      HID: cougar: Add support for Cougar 700K Gaming Keyboard
      ...
  18. Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

    torvalds committed Jan 6, 2019
    …/git/jikos/livepatching
    
    Pull livepatch update from Jiri Kosina:
     "Return value checking fixup in livepatching samples, from Nicholas Mc
      Guire"
    
    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
      livepatch: check kzalloc return values
  19. kconfig: rename generated .*conf-cfg to *conf-cfg

    masahir0y committed Jan 5, 2019
    Remove the dot-prefixing since it is just a matter of the
    .gitignore file.
    
    Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
  20. kbuild: remove unnecessary stubs for archheader and archscripts

    masahir0y committed Jan 3, 2019
    Make simply skips a missing rule when it is marked as .PHONY.
    Remove the dummy targets.
    
    Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
  21. kbuild: use assignment instead of define ... endef for filechk_* rules

    masahir0y committed Jan 3, 2019
    You do not have to use define ... endef for filechk_* rules.
    
    For simple cases, the use of assignment looks cleaner, IMHO.
    
    I updated the usage for scripts/Kbuild.include in case somebody
    misunderstands the 'define ... endif' is the requirement.
    
    Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
    Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
  22. arch: remove redundant UAPI generic-y defines

    masahir0y committed Jan 3, 2019
    Now that Kbuild automatically creates asm-generic wrappers for missing
    mandatory headers, it is redundant to list the same headers in
    generic-y and mandatory-y.
    
    Suggested-by: Sam Ravnborg <sam@ravnborg.org>
    Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
    Acked-by: Sam Ravnborg <sam@ravnborg.org>
  23. kbuild: generate asm-generic wrappers if mandatory headers are missing

    masahir0y committed Jan 3, 2019
    Some time ago, Sam pointed out a certain degree of overwrap between
    generic-y and mandatory-y. (https://lkml.org/lkml/2017/7/10/121)
    
    I tweaked the meaning of mandatory-y a little bit; now it defines the
    minimum set of ASM headers that all architectures must have.
    
    If arch does not have specific implementation of a mandatory header,
    Kbuild will let it fallback to the asm-generic one by automatically
    generating a wrapper. This will allow to drop lots of redundant
    generic-y defines.
    
    Previously, "mandatory" was used in the context of UAPI, but I guess
    this can be extended to kernel space ASM headers.
    
    Suggested-by: Sam Ravnborg <sam@ravnborg.org>
    Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
    Acked-by: Sam Ravnborg <sam@ravnborg.org>
  24. arch: remove stale comments "UAPI Header export list"

    masahir0y committed Jan 3, 2019
    These comments are leftovers of commit fcc8487 ("uapi: export all
    headers under uapi directories").
    
    Prior to that commit, exported headers must be explicitly added to
    header-y. Now, all headers under the uapi/ directories are exported.
    
    Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
  25. riscv: remove redundant kernel-space generic-y

    masahir0y committed Jan 3, 2019
    This commit removes redundant generic-y defines in
    arch/riscv/include/asm/Kbuild.
    
    [1] It is redundant to define the same generic-y in both
        arch/$(ARCH)/include/asm/Kbuild and
        arch/$(ARCH)/include/uapi/asm/Kbuild.
    
        Remove the following generic-y:
    
          errno.h
          fcntl.h
          ioctl.h
          ioctls.h
          ipcbuf.h
          mman.h
          msgbuf.h
          param.h
          poll.h
          posix_types.h
          resource.h
          sembuf.h
          setup.h
          shmbuf.h
          signal.h
          socket.h
          sockios.h
          stat.h
          statfs.h
          swab.h
          termbits.h
          termios.h
          types.h
    
    [2] It is redundant to define generic-y when arch-specific
        implementation exists in arch/$(ARCH)/include/asm/*.h
    
        Remove the following generic-y:
    
          cacheflush.h
          module.h
    
    Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
  26. kbuild: change filechk to surround the given command with { }

    masahir0y committed Dec 31, 2018
    filechk_* rules often consist of multiple 'echo' lines. They must be
    surrounded with { } or ( ) to work correctly. Otherwise, only the
    string from the last 'echo' would be written into the target.
    
    Let's take care of that in the 'filechk' in scripts/Kbuild.include
    to clean up filechk_* rules.
    
    Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>