Commit Graph

44543 Commits

Author SHA1 Message Date
Yoshihiro Shimoda
37db507496 dt-bindings: usb: usb-xhci: add r8a77961 support
This patch adds support for r8a77961 (R-Car M3-W+).

To avoid confusion between R-Car M3-W (R8A77960) and R-Car M3-W+
(R8A77961), this patch also updates the comment of
"renesas,xhci-r8a7796".

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-04-16 11:02:28 +03:00
Mauro Carvalho Chehab
df3c5f0a60 docs: dt: qcom,dwc3.txt: fix cross-reference for a converted file
The qcom-qusb2-phy.txt file was converted and renamed to yaml.
Update cross-reference accordingly.

Fixes: 8ce65d8d38 ("dt-bindings: phy: qcom,qusb2: Convert QUSB2 phy bindings to yaml")
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-04-16 11:02:28 +03:00
Linus Torvalds
0785249f8b Time(keeping) updates:
- Fix the time_for_children symlink in /proc/$PID/ so it properly reflects
    that it part of the 'time' namespace
 
  - Add the missing userns limit for the allowed number of time namespaces,
    which was half defined but the actual array member was not added.  This
    went unnoticed as the array has an exessive empty member at the end but
    introduced a user visible regression as the output was corrupted.
 
  - Prevent further silent ucount corruption by adding a BUILD_BUG_ON() to
    catch half updated data.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAl6TFe4THHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYob4PD/47Qwz2z2mEeO037VbbI2gY4yl/raFo
 5KPWmnwonKrtVaYAldLutA3iaG7bBbUX5fRvbSRNTS6CJIHwwfLSx7/CeWMmIXEX
 0zsBsn5QXjG89lJZXM+ot74yzjvkeoad2g0jEHv92v0WDSXFiAWhkBUwknfNFbpa
 csEjkdpyn2zTVBGBzKVHWHXddkY0o0Q0JOy0EiH09rHGpQktPoLJdYp73VCygoJd
 NRAXhTmBQq85RMcSB3eVTbSPpIuBUzZke9zoio7YZwEjl6bkvSqetPmTdIr57u4s
 ex3PX++64EXD7r8ZW36fPGDqu6v0CH2ILK7QVhwyHAYJo2LQKVd+v25muaFrzfpn
 dSG1SqabWqdIHUoW/76ORyecAFLTzGwDu07UH+6VJbXeLfmuhe/LI3hdDQFph9NQ
 BOBKhaHm8aXmAmvrkxbbAikSkJYVHrAIp5abI4PSYoPaqK1DWnSPaT1cqtaIUgYL
 Mk15z19V9np4lMCH2cucAlap8U9EvQEIfCRRdl+crDu17ZzGID1pwhY2DA8adqcT
 SUfwzzUaykd5TZtDeIe+6G9fsgf/wbSTSSbrNGKlLXDbxx+iNVXErkmx0JXLEHV4
 47cmBwQZ255DzjMfuS4HzCck2MaaP8mDWgcbszgkP+GFnkf9EAP5XNp9st937mbG
 rzP+NkjNCldN9w==
 =wOiC
 -----END PGP SIGNATURE-----

Merge tag 'timers-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull time(keeping) updates from Thomas Gleixner:

 - Fix the time_for_children symlink in /proc/$PID/ so it properly
   reflects that it part of the 'time' namespace

 - Add the missing userns limit for the allowed number of time
   namespaces, which was half defined but the actual array member was
   not added. This went unnoticed as the array has an exessive empty
   member at the end but introduced a user visible regression as the
   output was corrupted.

 - Prevent further silent ucount corruption by adding a BUILD_BUG_ON()
   to catch half updated data.

* tag 'timers-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  ucount: Make sure ucounts in /proc/sys/user don't regress again
  time/namespace: Add max_time_namespaces ucount
  time/namespace: Fix time_for_children symlink
2020-04-12 10:13:14 -07:00
Linus Torvalds
b032227c62 nios2 update for v5.7-rc1
MAINTAINERS: Remove nios2-dev@lists.rocketboards.org
 arch: nios2: remove 'resetvalue' property
 arch: nios2: rename 'altr,gpio-bank-width' -> 'altr,ngpio'
 arch: nios2: Enable the common clk subsystem on Nios2
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJekLG3AAoJEFWoEK+e3syCY2EP/3aMWVLoVXNjSGu2S4BSinQs
 IEag621TYh3EXI4YXoZ46lMbwTLBZtoRwF3r5MTGHcJi0R5CtTIlIvb3h6NBUlzO
 7lnefhjXVT70RIRaVo+jwOWfXmP1+i+VQ+7rPlUwEf9R9us3QeUgs6awfNCl5qvK
 7bMgSySHTGJwUaM0K9QzN857+8NVPwA4b3hzx1jl/mwZ2LXlE/cesPW78x0sXudJ
 jUapo9FLsnkowm3G1OgXQ6vqoUheADMav4liW1Q2q9Oc1vJsXuSLTNT8+sn0AmoK
 oK2jWUw70xFuR5gVbWtIBg4/OKsbWmVcwjyIiMEe4ewmR93epcubzL7RbOGi5dWo
 sAM92bQ1QIeYtrk4MbouKuKbsPGpBd0ml8FIe8Cyr6pkaT+yI6kYCZVYBE0Drfnv
 HcUua7js9n891CTTISDo4DU+IOF5ZtR1Y7mJK1dDFDJa4d2F+XKowmV77mPZN6Hr
 7h8VzqMu1l17kOc0sWETMySmZ0MbXnfGNRjvx5jrb7gF/Z02+ec8s0LaLrDmJ8Mr
 RYMby+83oApvl1tBQPNQREVNS3EqBsptwOxhlI+1cxjXAKEMBzGXlYUhcwkiUSks
 LXRWuGyXt+26PRctKm7z9+g3HvwnRZDfZ4nZQaW9IrGcXw+dRQpIGrI7GJ/tklLy
 +LH9lOqZmnWekkkGHoMs
 =K/BF
 -----END PGP SIGNATURE-----

Merge tag 'nios2-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2

Pull nios2 updates from Ley Foon Tan:

 - Remove nios2-dev@lists.rocketboards.org from MAINTAINERS

 - remove 'resetvalue' property

 - rename 'altr,gpio-bank-width' -> 'altr,ngpio'

 - enable the common clk subsystem on Nios2

* tag 'nios2-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
  MAINTAINERS: Remove nios2-dev@lists.rocketboards.org
  arch: nios2: remove 'resetvalue' property
  arch: nios2: rename 'altr,gpio-bank-width' -> 'altr,ngpio'
  arch: nios2: Enable the common clk subsystem on Nios2
2020-04-11 11:38:44 -07:00
Linus Torvalds
b753101a4a Kbuild updates for v5.7 (2nd)
- raise minimum supported binutils version to 2.23
 
  - remove old CONFIG_AS_* macros that we know binutils >= 2.23 supports
 
  - move remaining CONFIG_AS_* tests to Kconfig from Makefile
 
  - enable -Wtautological-compare warnings to catch more issues
 
  - do not support GCC plugins for GCC <= 4.7
 
  - fix various breakages of 'make xconfig'
 
  - include the linker version used for linking the kernel into
    LINUX_COMPILER, which is used for the banner, and also exposed to
    /proc/version
 
  - link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y,
    which allows us to remove the lib-ksyms.o workaround, and to
    solve the last known issue of the LLVM linker
 
  - add dummy tools in scripts/dummy-tools/ to enable all compiler
    tests in Kconfig, which will be useful for distro maintainers
 
  - support the single switch, LLVM=1 to use Clang and all LLVM utilities
    instead of GCC and Binutils.
 
  - support LLVM_IAS=1 to enable the integrated assembler, which is still
    experimental
 -----BEGIN PGP SIGNATURE-----
 
 iQJJBAABCgAzFiEEbmPs18K1szRHjPqEPYsBB53g2wYFAl6RNqEVHG1hc2FoaXJv
 eUBrZXJuZWwub3JnAAoJED2LAQed4NsGZPEP/3affmzIWJuKGF1RErOHK3KCe/uX
 PmLjoRZ7im7V+J4b3W+p+re6BOXIXhW+rtKoP/Ijuys9g80WeeAb2nB4h0ESOtff
 3NgN97v28mh4tVtbluJambFDXItei+UwDp1sgg2sZ7ehaSBVny9hgNmPRn5YcyoS
 O3Juy85q70l8awBWThjEHgSxEw2Rzh9PLE6YmMt40rHTxVEDjMOPSuBlp/+TWj3X
 ugF/wInp+J5mCAKCwJI4L6PavdwIwf9hg3Cv/DpoOw60TxwH+7Rq6RueDKBgHhe3
 UEPHrXyPCsF/JQwwSFxN7k481RV2PjkXFwA3U5vH+3WIRb4ETX0+fmBIrLPSAX4z
 6rZiEvdrGS4TVvW2i8mrkJUrLPHNyQ90q/FU0V18A1k77Cv7mWJjSebTAVYNvz/v
 f/DxApaepwprdtHcNYJMN/TVnwxNexJK+U+bkuXsmDggvZYCxwLQUjtI3Sab1Rv9
 C6Y8WgqKx8yP6NbqVtUMkwXdEhBiHgybVxkl9hseUEbhUElIViuq5rlrHa0FVt2Q
 w4orgFXOd7k5iuDr7ka+wa3p20KLQQuB+vwLaCpi35+4vepQ7P0i2tFNwSclo7lO
 +iNy4Bq20W0/cmQeUJIzctJGibwro1I3HPN1UJ7gp0fZ2WVGzV0SKpwQ0tLOVuuU
 y9yPsL1ciDpKQKMh
 =jpyF
 -----END PGP SIGNATURE-----

Merge tag 'kbuild-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:

 - raise minimum supported binutils version to 2.23

 - remove old CONFIG_AS_* macros that we know binutils >= 2.23 supports

 - move remaining CONFIG_AS_* tests to Kconfig from Makefile

 - enable -Wtautological-compare warnings to catch more issues

 - do not support GCC plugins for GCC <= 4.7

 - fix various breakages of 'make xconfig'

 - include the linker version used for linking the kernel into
   LINUX_COMPILER, which is used for the banner, and also exposed to
   /proc/version

 - link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y, which
   allows us to remove the lib-ksyms.o workaround, and to solve the last
   known issue of the LLVM linker

 - add dummy tools in scripts/dummy-tools/ to enable all compiler tests
   in Kconfig, which will be useful for distro maintainers

 - support the single switch, LLVM=1 to use Clang and all LLVM utilities
   instead of GCC and Binutils.

 - support LLVM_IAS=1 to enable the integrated assembler, which is still
   experimental

* tag 'kbuild-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (36 commits)
  kbuild: fix comment about missing include guard detection
  kbuild: support LLVM=1 to switch the default tools to Clang/LLVM
  kbuild: replace AS=clang with LLVM_IAS=1
  kbuild: add dummy toolchains to enable all cc-option etc. in Kconfig
  kbuild: link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y
  MIPS: fw: arc: add __weak to prom_meminit and prom_free_prom_memory
  kbuild: remove -I$(srctree)/tools/include from scripts/Makefile
  kbuild: do not pass $(KBUILD_CFLAGS) to scripts/mkcompile_h
  Documentation/llvm: fix the name of llvm-size
  kbuild: mkcompile_h: Include $LD version in /proc/version
  kconfig: qconf: Fix a few alignment issues
  kconfig: qconf: remove some old bogus TODOs
  kconfig: qconf: fix support for the split view mode
  kconfig: qconf: fix the content of the main widget
  kconfig: qconf: Change title for the item window
  kconfig: qconf: clean deprecated warnings
  gcc-plugins: drop support for GCC <= 4.7
  kbuild: Enable -Wtautological-compare
  x86: update AS_* macros to binutils >=2.23, supporting ADX and AVX2
  crypto: x86 - clean up poly1305-x86_64-cryptogams.S by 'make clean'
  ...
2020-04-11 09:46:12 -07:00
Linus Torvalds
5b8b9d0c6d Merge branch 'akpm' (patches from Andrew)
Merge yet more updates from Andrew Morton:

 - Almost all of the rest of MM (memcg, slab-generic, slab, pagealloc,
   gup, hugetlb, pagemap, memremap)

 - Various other things (hfs, ocfs2, kmod, misc, seqfile)

* akpm: (34 commits)
  ipc/util.c: sysvipc_find_ipc() should increase position index
  kernel/gcov/fs.c: gcov_seq_next() should increase position index
  fs/seq_file.c: seq_read(): add info message about buggy .next functions
  drivers/dma/tegra20-apb-dma.c: fix platform_get_irq.cocci warnings
  change email address for Pali Rohár
  selftests: kmod: test disabling module autoloading
  selftests: kmod: fix handling test numbers above 9
  docs: admin-guide: document the kernel.modprobe sysctl
  fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()
  kmod: make request_module() return an error when autoloading is disabled
  mm/memremap: set caching mode for PCI P2PDMA memory to WC
  mm/memory_hotplug: add pgprot_t to mhp_params
  powerpc/mm: thread pgprot_t through create_section_mapping()
  x86/mm: introduce __set_memory_prot()
  x86/mm: thread pgprot_t through init_memory_mapping()
  mm/memory_hotplug: rename mhp_restrictions to mhp_params
  mm/memory_hotplug: drop the flags field from struct mhp_restrictions
  mm/special: create generic fallbacks for pte_special() and pte_mkspecial()
  mm/vma: introduce VM_ACCESS_FLAGS
  mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS
  ...
2020-04-10 17:57:48 -07:00
Linus Torvalds
ca6151a978 A handful of late-arriving fixes for the documentation tree.
-----BEGIN PGP SIGNATURE-----
 
 iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAl6QnP0PHGNvcmJldEBs
 d24ubmV0AAoJEBdDWhNsDH5Yf2kH+gO2r5g/OzT32Szm3ZgRYgnJ3u6ON6MXllCd
 pxY+M3Yw/3Q4W1CMkg4Oo8Hq97dTSNtPriDpWMBDj6+QvBF1DzG797ThiHHNpTEy
 i0CV5uawvRuWHTr/jOdRZDRosegbTdgqRbj8MWBw9JjWalHky5QUG0StubXy0TPD
 ahj+QRN3oxFqlHr4OtVL8NXTeVwjiXPiRFDrcy/eEw2jb2hkiLhWfElFsh7KhE9L
 K0PPLGKJMqSM6PYjqQqJx+M363Pm/nNpyw5z55pTMn0l5kbG5tu6CIYMlMJmzYBE
 8vwJnxpiA3QRrqG5TtgVLS+yFRxO1AXdY/F6N5qt2hiczUyXlf8=
 =C8i4
 -----END PGP SIGNATURE-----

Merge tag 'docs-5.7-2' of git://git.lwn.net/linux

Pull Documentation fixes from Jonathan Corbet:
 "A handful of late-arriving fixes for the documentation tree"

* tag 'docs-5.7-2' of git://git.lwn.net/linux:
  Documentation: android: binderfs: add 'stats' mount option
  Documentation: driver-api/usb/writing_usb_driver.rst Updates documentation links
  docs: driver-api: address duplicate label warning
  Documentation: sysrq: fix RST formatting
  docs: kernel-parameters.txt: Fix broken references
  docs: kernel-parameters.txt: Remove nompx
  docs: filesystems: fix typo in qnx6.rst
2020-04-10 17:53:43 -07:00
Linus Torvalds
4e4bdcfa21 orangefs: a fix and two cleanups and a merge conflict
Fix: Christoph Hellwig noticed that some logic I added to
      orangefs_file_read_iter introduced a race condition, so he
      sent a reversion patch. I had to modify his patch since
      reverting at this point broke Orangefs.
 
 Cleanup 1: Christoph Hellwig noticed that we were doing some unnecessary
            work in orangefs_flush, so he sent in a patch that removed
            the un-needed code.
 
 Cleanup 2: Al Viro told me he had trouble building Orangefs. Orangefs
            should be easy to build, even for Al :-). I looked back
            at the test server build notes in orangefs.txt, just in case
            that's where the trouble really is, and found a couple of
            typos and made a couple of clarifications.
 
 Merge Conflict: Stephen Rothwell reported that my modifications to
                 orangefs.txt caused a merge conflict with orangefs.rst
                 in Linux Next. I wasn't sure what to do, so I asked,
                 and Jonathan Corbet said not to worry about it and
                 just to report it to Linus.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEIGSFVdO6eop9nER2z0QOqevODb4FAl6Qft8ACgkQz0QOqevO
 Db6v1A/7BnEalIB30OPy2PUAcobY3Bqtio2Mb7ULquvZAarVvNgTZIyI4UGt0VBN
 bc8KOpKF/ZJIJLjgyorjnA7KGYg+FLdWatTu5GkdEz6DxKbbvXsokJI/uZkXVIGF
 BS/Ic0KmOBL+wUjqc/xfJQrm5dSLp2woHWfhyWoKuKJtC0Ut9a0ov0Y8T2X/F4Jw
 xV4rMhuEy9zBU6nLHOHEumt9RDUAL2TlK4RJ9on0OmV1W/iizin6GU2q20E6fJVb
 C0ShqigQEI+Uo6QXKf9w8eqWH4Vq431L0zlwASR63DgnmMXM4osx3iVETTcOoeg7
 xcz7mjMOqutAu1R89Y0BIBglVvZaP+Auds+awFRvcGFoM5s19DlolRYofLqiIdzy
 OsQd2oT2DBEHBkYnGCRXnqPLj+Q9/sMs4vNAaHUcEz1pn3x57lgxFFPHQEF6+bLy
 WX/cEVRgqjHhieLUCXLI9jVA54mhvsGZuyXputLOA7r3Dqjk5LIWPIGIW1ksjA1T
 Kl7Ge/C4i3OOAJDtjcr+kl5LoKu/ppPmg+fOaTQ9qmGWRiwXdfoR4GMT3pEF0Uam
 bXwR2CZlsUBIlqO9FmWwrdDddt55gMRbjNcqzgqpCyDKQ5zFM+nWgsl5oHFYkTty
 QYMZtslM8icZPxGYucrhqLxaqRJ4kJoCcoxmOyPrfN/0cDWuIDc=
 =dNWv
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-5.7-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux

Pull orangefs updates from Mike Marshall:
 "A fix and two cleanups.

  Fix:

   - Christoph Hellwig noticed that some logic I added to
     orangefs_file_read_iter introduced a race condition, so he sent a
     reversion patch. I had to modify his patch since reverting at this
     point broke Orangefs.

  Cleanups:

   - Christoph Hellwig noticed that we were doing some unnecessary work
     in orangefs_flush, so he sent in a patch that removed the un-needed
     code.

   - Al Viro told me he had trouble building Orangefs. Orangefs should
     be easy to build, even for Al :-).

     I looked back at the test server build notes in orangefs.txt, just
     in case that's where the trouble really is, and found a couple of
     typos and made a couple of clarifications"

* tag 'for-linus-5.7-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
  orangefs: clarify build steps for test server in orangefs.txt
  orangefs: don't mess with I_DIRTY_TIMES in orangefs_flush
  orangefs: get rid of knob code...
2020-04-10 17:50:01 -07:00
Pali Rohár
149ed3d404 change email address for Pali Rohár
For security reasons I stopped using gmail account and kernel address is
now up-to-date alias to my personal address.

People periodically send me emails to address which they found in source
code of drivers, so this change reflects state where people can contact
me.

[ Added .mailmap entry as per Joe Perches  - Linus ]
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Link: http://lkml.kernel.org/r/20200307104237.8199-1-pali@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-10 15:36:22 -07:00
Eric Biggers
6e71582506 docs: admin-guide: document the kernel.modprobe sysctl
Document the kernel.modprobe sysctl in the same place that all the other
kernel.* sysctls are documented.  Make sure to mention how to use this
sysctl to completely disable module autoloading, and how this sysctl
relates to CONFIG_STATIC_USERMODEHELPER.

[ebiggers@google.com: v5]
  Link: http://lkml.kernel.org/r/20200318230515.171692-4-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jeff Vander Stoep <jeffv@google.com>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: NeilBrown <neilb@suse.com>
Link: http://lkml.kernel.org/r/20200312202552.241885-4-ebiggers@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-10 15:36:22 -07:00
Roman Gushchin
cf11e85fc0 mm: hugetlb: optionally allocate gigantic hugepages using cma
Commit 944d9fec8d ("hugetlb: add support for gigantic page allocation
at runtime") has added the run-time allocation of gigantic pages.

However it actually works only at early stages of the system loading,
when the majority of memory is free.  After some time the memory gets
fragmented by non-movable pages, so the chances to find a contiguous 1GB
block are getting close to zero.  Even dropping caches manually doesn't
help a lot.

At large scale rebooting servers in order to allocate gigantic hugepages
is quite expensive and complex.  At the same time keeping some constant
percentage of memory in reserved hugepages even if the workload isn't
using it is a big waste: not all workloads can benefit from using 1 GB
pages.

The following solution can solve the problem:
1) On boot time a dedicated cma area* is reserved. The size is passed
   as a kernel argument.
2) Run-time allocations of gigantic hugepages are performed using the
   cma allocator and the dedicated cma area

In this case gigantic hugepages can be allocated successfully with a
high probability, however the memory isn't completely wasted if nobody
is using 1GB hugepages: it can be used for pagecache, anon memory, THPs,
etc.

* On a multi-node machine a per-node cma area is allocated on each node.
  Following gigantic hugetlb allocation are using the first available
  numa node if the mask isn't specified by a user.

Usage:
1) configure the kernel to allocate a cma area for hugetlb allocations:
   pass hugetlb_cma=10G as a kernel argument

2) allocate hugetlb pages as usual, e.g.
   echo 10 > /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages

If the option isn't enabled or the allocation of the cma area failed,
the current behavior of the system is preserved.

x86 and arm-64 are covered by this patch, other architectures can be
trivially added later.

The patch contains clean-ups and fixes proposed and implemented by Aslan
Bakirov and Randy Dunlap.  It also contains ideas and suggestions
proposed by Rik van Riel, Michal Hocko and Mike Kravetz.  Thanks!

Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Andreas Schaufler <andreas.schaufler@gmx.de>
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
Acked-by: Michal Hocko <mhocko@kernel.org>
Cc: Aslan Bakirov <aslan@fb.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Link: http://lkml.kernel.org/r/20200407163840.92263-3-guro@fb.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-10 15:36:21 -07:00
Linus Torvalds
75bdc9293d pwm: Changes for v5.7-rc1
There's quite a few changes this time around. Most of these are fixes
 and cleanups, but there's also new chip support for some drivers and a
 bit of rework.
 -----BEGIN PGP SIGNATURE-----
 
 iQJNBAABCAA3FiEEiOrDCAFJzPfAjcif3SOs138+s6EFAl6PNdoZHHRoaWVycnku
 cmVkaW5nQGdtYWlsLmNvbQAKCRDdI6zXfz6zofdhD/0SW+PCzkC1mLveOrbbZkDd
 F5LtzbdEgPvmxu47v17O6kCtHLmofSNzfMkUw8H6Z6aQdnO2wLkHG7CGjnRIroW3
 q8X5nzciDvnKintwXLYjWCV/m9FECqUv07LSmvLzgJSMpoxuAb7JKROIc17GtOBv
 Gw2LSPZTLimeRgYyStOJr6yKiu31KOGwio2JhE3yknMwNOmINO8QpVaV4kJtrb7t
 lnPhlgwxG5QMyNojLF6iTb+kFu+3L1UskxXT0QUL5mc1NgdGl1xu8qFhFTad+qnZ
 SoCodT5T+Z0DQonPbsZ9DRm3NDCA8I5Rt6rh6MO9uRMK8tYm77vZqocOIl07AjEI
 Wa4SxI+7rzyeqfeVo/SnIJceq2WjVIXKb4mUI/7jVfmGmF1upMPNdLrOjSY4+xdG
 QyNXYsQt53prswUfReZGy6LvZB7Bjx9gT/zk/hljSI7CjiAsp3Zy+ukO5A6wvsCQ
 0gKhhTwWVwL6GVvVDUNpnuNI+OxSFjTCHUyGtdgvo6lvakpLth9+IBs644xvGH6d
 OgHZIPIW5X+Zt003V+7r5lNaNYBSbujOsAIyf0LX+QWICxwLmAIVikyXE0cNXHBM
 g3jmJHYnnZds9g9XbHhpYhaNgOfF+SZB7kdHXzzAJzkM8stjoR0Gi1EiWbTAb9xw
 0+s6eiq9MS2eUGX41PJw/Q==
 =Ugxz
 -----END PGP SIGNATURE-----

Merge tag 'pwm/for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "There's quite a few changes this time around.

  Most of these are fixes and cleanups, but there's also new chip
  support for some drivers and a bit of rework"

* tag 'pwm/for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (33 commits)
  pwm: pca9685: Fix PWM/GPIO inter-operation
  pwm: Make pwm_apply_state_debug() static
  pwm: meson: Remove redundant assignment to variable fin_freq
  pwm: jz4740: Allow selection of PWM channels 0 and 1
  pwm: jz4740: Obtain regmap from parent node
  pwm: jz4740: Improve algorithm of clock calculation
  pwm: jz4740: Use clocks from TCU driver
  pwm: sun4i: Remove redundant needs_delay
  pwm: omap-dmtimer: Implement .apply callback
  pwm: omap-dmtimer: Do not disable PWM before changing period/duty_cycle
  pwm: omap-dmtimer: Fix PWM enabling sequence
  pwm: omap-dmtimer: Update description for PWM OMAP DM timer
  pwm: omap-dmtimer: Drop unused header file
  pwm: renesas-tpu: Drop confusing registered message
  pwm: renesas-tpu: Fix late Runtime PM enablement
  pwm: rcar: Fix late Runtime PM enablement
  dt-bindings: pwm: renesas-tpu: Document more R-Car Gen2 support
  pwm: meson: Fix confusing indentation
  pwm: pca9685: Use gpio core provided macro GPIO_LINE_DIRECTION_OUT
  pwm: pca9685: Replace CONFIG_PM with __maybe_unused
  ...
2020-04-10 12:55:20 -07:00
Linus Torvalds
6900433e0f Bug fixes for main IPMI driver, kcs updates
A couple of bug fixes for the main IPMI driver, one functional and two
 annotations.
 
 The kcs driver has some significant updates that have been pending for a
 while, but I forgot to include in next until a week ago.  But this code
 is only used by the people who are sending it to me, really, so it's not
 a big deal.  I did want it to sit in next for at least a week, and it did
 result in a fix.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE/Q1c5nzg9ZpmiCaGYfOMkJGb/4EFAl6Qc3AACgkQYfOMkJGb
 /4EOxhAAtEkoudrXYDDd39B+wVjW0JZ59jBKtTiosLrK+mE0hyq5rh+lJLqmtKmy
 uF69HLqtSGl7ZgpFdzeT8M1fRt4uTTh7BuOkkc2r/18/a+YVJOUFnUpB4BLg06O8
 Wr1dMeya6KukM+S3clezCx7jwkwu3V+E8lUKxkQg6zIHRw+DevNUL2Ec6MpZI4SJ
 KIjmyp62ASIuME0YeEXnx3wrFzOJIR+01liu4R/4OcDBR2p6fb/TqPFwY4HCq9Fy
 pV7riuqXLTGKYk9vnmeHMYZGXT8I55FvkQIB73QWRSpcIyLLcht0wQ04dRQFF/jA
 j4ZLfGNTvHgnJQiLmRjPIGGbmiUPx76fWghAC87QtT07HksYEvnsbbxuZ/lZTGdc
 NmV7X25HHr/YM4wEffALiaOHXzWXkuxkN0ptzrulbyYOE3631jwAMhcyzucvPvTO
 7wU5qshQHTLqQLwyvChdThsKNukmaqOdBH9/vONsXFvgcLy14ZNyR3oPObQUpD6n
 CtKbteXSuIA2cjYBj1oCgZ/3lwmYd/DVqGhqGYCnNElnSekF14p312lE+NiXYxnZ
 7BIqKBn51asdeWdeJNFOk0qZog6YquwCM7m16kSukzehPaUsovuJkDpVGKpEhYEg
 2M4aiiDr/gWpoXJBg6xMM2j//268z6Oe3C6ZX1XPD1jzZ8Gv/Y0=
 =vV/F
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-5.7-1' of git://github.com/cminyard/linux-ipmi

Pull IPMI updates from Corey Minyard:
 "Bug fixes for main IPMI driver, kcs updates

  A couple of bug fixes for the main IPMI driver, one functional and two
  annotations.

  The kcs driver has some significant updates that have been pending for
  a while, but I forgot to include in next until a week ago. But this
  code is only used by the people who are sending it to me, really, so
  it's not a big deal. I did want it to sit in next for at least a week,
  and it did result in a fix"

* tag 'for-linus-5.7-1' of git://github.com/cminyard/linux-ipmi:
  ipmi: kcs: Fix aspeed_kcs_probe_of_v1()
  ipmi: Add missing annotation for ipmi_ssif_lock_cond() and ipmi_ssif_unlock_cond()
  ipmi: kcs: aspeed: Implement v2 bindings
  ipmi: kcs: Finish configuring ASPEED KCS device before enable
  dt-bindings: ipmi: aspeed: Introduce a v2 binding for KCS
  ipmi: fix hung processes in __get_guid()
  drivers: char: ipmi: ipmi_msghandler: Pass lockdep expression to RCU lists
2020-04-10 12:43:42 -07:00
Linus Torvalds
4aafdf6883 sound fixes for 5.7-rc1
A collection of small fixes gathered since the previous update.
 
 * ALSA core:
 - Regression fix for OSS PCM emulation
 
 * ASoC:
 - Trivial fixes in reg bit mask ops, DAPM, DPCM and topology
 - Lots of fixes for Intel-based devices
 - Minor fixes for AMD, STM32, Qualcomm, Realtek
 
 * Others
 - Fixes for the bugs in mixer handling in HD-audio and ice1724
   drivers that were caught by the recent kctl validator
 - New quirks for HD-audio and USB-audio
 
 Also this contains a fix for EDD firmware fix, which slipped
 from anyone's hands.
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAl6PLNAOHHRpd2FpQHN1
 c2UuZGUACgkQLtJE4w1nLE9Dww//S7LOszzp3CczyVzNzR6XHGArnpWHmQrol+ab
 cwL+Vs30vnlvLTnbyER6q5DeGpBhMfQozp8Ac/LeTd0g3hdh4pIOT2K7oF4MWrk8
 rVlZXI/Q8fKRC5jQR1MedA+naH+1JRKnY7+WqjKlUoDDJaZTygCFADHY4OMtfa7a
 n93d1cAbiUMF+q8CAnxHsNcs6/7rUQiY7HcKrUcNyj8BNaWhWYffMhA8cY6S+8Q7
 9fnjOOc/m5Wy3xTnXHeHlaaqRri8y9t21wXX4vPQZtPPqZ280qqlGcl2nGH4rAVn
 Hl8I6W7Z/fFZao6oZPf8bBDGFiBjb3/6Q8593xB+m85xqfepgbqP0vHDpqOU5hUR
 2rYZIrJOrlYPslIyujhNtCw4OTy6OqbHoZ5iWe0JMXH6u0Ht/XwVx3GCHaupe9gG
 km7FsHfjDw9kkfwImIE7qJTvvTt9l8EZbeCR4zAn204kJkkumlogMYIlcYO2noN4
 dItCeeF7iMhUlgFehsbLw9MEz1bHxMsjKedF97hAlKXwKoz2tM00du84pEs3JaGX
 BCcUke/smVeFUOV8hLOZx1G2e9kR/dHESOOp/1pGJgvNlbboXSyoZNyk9zIlvntx
 uLGon2qYAVXwEmfqQkSAwc/dxuyaYYZVhlXNBQXX6hQC+zw1e9yYddnpY+HX/1r0
 6qDJW4k=
 =mFJY
 -----END PGP SIGNATURE-----

Merge tag 'sound-fix-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes gathered since the previous update.

  ALSA core:
   - Regression fix for OSS PCM emulation

  ASoC:
   - Trivial fixes in reg bit mask ops, DAPM, DPCM and topology
   - Lots of fixes for Intel-based devices
   - Minor fixes for AMD, STM32, Qualcomm, Realtek

  Others:
   - Fixes for the bugs in mixer handling in HD-audio and ice1724
     drivers that were caught by the recent kctl validator
   - New quirks for HD-audio and USB-audio

  Also this contains a fix for EDD firmware fix, which slipped from
  anyone's hands"

* tag 'sound-fix-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (35 commits)
  ALSA: hda: Add driver blacklist
  ALSA: usb-audio: Add mixer workaround for TRX40 and co
  ALSA: hda/realtek - Add quirk for MSI GL63
  ALSA: ice1724: Fix invalid access for enumerated ctl items
  ALSA: hda: Fix potential access overflow in beep helper
  ASoC: cs4270: pull reset GPIO low then high
  ALSA: hda/realtek - Add HP new mute led supported for ALC236
  ALSA: hda/realtek - Add supported new mute Led for HP
  ASoC: rt5645: Add platform-data for Medion E1239T
  ASoC: Intel: bytcr_rt5640: Add quirk for MPMAN MPWIN895CL tablet
  ASoC: stm32: sai: Add missing cleanup
  ALSA: usb-audio: Add registration quirk for Kingston HyperX Cloud Alpha S
  ASoC: Intel: atom: Fix uninitialized variable compiler warning
  ASoC: Intel: atom: Check drv->lock is locked in sst_fill_and_send_cmd_unlocked
  ASoC: Intel: atom: Take the drv->lock mutex before calling sst_send_slot_map()
  ASoC: SOF: Turn "firmware boot complete" message into a dbg message
  ALSA: usb-audio: Add Pioneer DJ DJM-250MK2 quirk
  ALSA: pcm: oss: Fix regression by buffer overflow fix (again)
  ALSA: pcm: oss: Fix regression by buffer overflow fix
  edd: Use scnprintf() for avoiding potential buffer overflow
  ...
2020-04-10 12:27:06 -07:00
Alexandru Ardelean
d00935affc arch: nios2: remove 'resetvalue' property
The 'altr,pio-1.0' driver does not handle the 'resetvalue', so remove it.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
2020-04-11 01:46:04 +08:00
Alexandru Ardelean
6dd5d3b8ad arch: nios2: rename 'altr,gpio-bank-width' -> 'altr,ngpio'
There is no more 'altr,gpio-bank-width' in the 'altr,pio-1.0' driver.
There is a 'altr,ngpio' which is  what the property wants to configure.

This change updates all occurrences of 'altr,gpio-bank-width' to
'altr,ngpio'.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
2020-04-11 01:45:52 +08:00
Linus Torvalds
d3e5e977ab More ACPI updates for 5.7-rc1
Prevent a false-positive static checker warning from triggering
 in the ACPI EC driver (Rafael Wysocki), fix white space in an
 ACPI document (Vilhelm Prytz) and add static annotation to one
 variable (Jason Yan).
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAl6QPusSHHJqd0Byand5
 c29ja2kubmV0AAoJEILEb/54YlRxVpUQAKRG324LPa03jGfZi0TtkQGPmNJg4c9k
 bzWtIgegxfhl+v9eSo397ib0mj/ieaNgolV4q9MD5RxOlN0a3Gm0f4pA76nPmkog
 O+Uvk+b5VXb9wVPIC7WbSk9jgvghBvOA8qCA6AMJit7Q/yRKaOcPtI/Bu6HFaSn6
 JznZo6+qImeD5iiOmhfEW0tXXfu4y3BfJ2rz49A63Wkqif0CrcjZouFPbPdnphVJ
 LDJpkpQt0HK19BehCTQvMROq7FSYIURMof33RZBbDQ+YXPoUUsNq7REYcgt6Hagf
 K8mjg4W0W1pkE8S2/pl2j+5yY8c3NzNSQG3tZfZD9df5FPyQSDhHEvMoQxQSu/Vf
 pdm+1yyIVz9uMfl0xE4CTW0zkd3WBCQ6wV06/pDv7F9VAdBNJ095XqoQviEp4TLq
 zix5/Xrv84CzrsSTvi9CmLWdi7PXUX1XpNUQLU7RvnHDHBfTZBOZ0dCoJljcNdBp
 qLkf9pCMMvLj3tjZUBsWyB8QGvp1lo8ZF+/kS0JpeYAebx4KsEuAyEb2Tuw3JS4r
 5qpMSf4M995NzDbnyWumzYffN+xawVSp9MZyvPn8N75MgvLysqehdWvVa+52dfv4
 dD3/zRLeXjPtVhwHLXzLAFPBFQyXY/b9cWYq93adgWsTMcLw3gb1ywl18but8AO7
 RvpGNgi8BTq2
 =wKsb
 -----END PGP SIGNATURE-----

Merge tag 'acpi-5.7-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These prevent a false-positive static checker warning from triggering
  in the ACPI EC driver (Rafael Wysocki), fix white space in an ACPI
  document (Vilhelm Prytz) and add static annotation to one variable
  (Jason Yan)"

* tag 'acpi-5.7-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI, x86/boot: make acpi_nobgrt static
  Documentation: firmware-guide: ACPI: fix table alignment in namespace.rst
  ACPI: EC: Fix up fast path check in acpi_ec_add()
2020-04-10 09:52:15 -07:00
Randy Dunlap
befacdcf47 Documentation: android: binderfs: add 'stats' mount option
Add documentation of the binderfs 'stats' mount option.

Description taken from the commit message.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/r/baa0aa81-007d-af46-16a5-91fead0bd1b9@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-10 10:14:53 -06:00
Linus Torvalds
5d30bcacd9 9p pull request for inclusion in 5.7 (take 2)
- Change read with O_NONBLOCK to allow incomplete read and return immediately
 (and document it)
 - Rest is just cleanup (indent, unused field in struct, extra semicolon)
 -----BEGIN PGP SIGNATURE-----
 
 iQIyBAABCAAdFiEE/IPbcYBuWt0zoYhOq06b7GqY5nAFAl6N6L4ACgkQq06b7GqY
 5nC2aQ/1EOZVI3AtlmC5KeocpcUjb+umz74D5z7r/LBnHNkTAf8/iRw1I+X+xJvM
 CKLoHTBkcNQOgydRYhW6NEUaI97ZRcqymrV38MIkYbJ++1y4oNCu9Z4ZXk9wNYq3
 Qp2Uhv6K5/OBX/8maQrtWKP8Zf/R2huLh5ECKaSsmEuCExOhYVt9uvrH5XKbGnt3
 ZVmZjjWGvpF/K318XATW5cvpDj0zPgKbvNuM/4RNjIBvZfOS5RRztoUWYCs5gH5N
 g1V49NY5GRq9DH3tCIbrCDMw4AVCySozZ4TY9V5CTUSMxitJ66zB6/yocRBVm4bQ
 tLFXCe4N9cIXN8JgphM78xp7/z2krQojH8xqrVDHgvkmLwPU+h3sh288XMn/li7m
 8t078NmrioYa8UQc1TqQMAgspVIkgVVhiRlc7LzQ3aT4z/0hzcdgx74d6KJXZ36O
 IG+oa/j+CVoztOQB5fnBFq4EQieXYTcSk+R2xeH38jxaP4ouYeYeTfSJ/eY6HM26
 7a8m+hoO1i8UBUAwK75ium/ZdEPw6wP7AnXAs+fyCS6Ly+mJ+SxMjqAdyszdSvBT
 9fpz9INY9mx7T9OQa4usK30dSnPCZgpHQF5sZBAC7zFJzV0bkx+4sh6UfQW7hx3V
 T89oTuYybjQeeU2M+DiVi7ng8E9jcH3mr0svMX6IkTr/Ps4cUg==
 =wKM3
 -----END PGP SIGNATURE-----

Merge tag '9p-for-5.7-2' of git://github.com/martinetd/linux

Pull 9p documentation update from Dominique Martinet:
 "Document the new O_NONBLOCK short read behavior"

* tag '9p-for-5.7-2' of git://github.com/martinetd/linux:
  9p: document short read behaviour with O_NONBLOCK
2020-04-08 21:51:14 -07:00
Linus Torvalds
fcc95f0640 The main items are:
- support for asynchronous create and unlink (Jeff Layton).  Creates
   and unlinks are satisfied locally, without waiting for a reply from
   the MDS, provided the client has been granted appropriate caps (new
   in v15.y.z ("Octopus") release).  This can be a big help for metadata
   heavy workloads such as tar and rsync.  Opt-in with the new nowsync
   mount option.
 
 - multiple blk-mq queues for rbd (Hannes Reinecke and myself).  When
   the driver was converted to blk-mq, we settled on a single blk-mq
   queue because of a global lock in libceph and some other technical
   debt.  These have since been addressed, so allocate a queue per CPU
   to enhance parallelism.
 
 - don't hold onto caps that aren't actually needed (Zheng Yan).  This
   has been our long-standing behavior, but it causes issues with some
   active/standby applications (synchronous I/O, stalls if the standby
   goes down, etc).
 
 - .snap directory timestamps consistent with ceph-fuse (Luis Henriques)
 -----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAl6OEO4THGlkcnlvbW92
 QGdtYWlsLmNvbQAKCRBKf944AhHzi0XNB/wItYipkjlL5fIUBqiRWzYai72DWdPp
 CnOZo8LB+O0MQDomPT6DdpU1OMlWZi5HF7zklrZ35LTm21UkRNC9zvccjs9l66PJ
 qo9cKJbxxju+hgzIvgvK9PjlDlaiFAc/pkF8lZ/NaOnSsM1vvsFL9IuY2LXS38MY
 A/uUTZNUnFy5udam8TPuN+gWwZcUIH48lRWQLWe2I/hNJSweX1l8OHvecOBg+cYH
 G+8vb7mLU2V9ky0YT5JJmVxUV3CWA5wH6ZrWWy1ofVDdeSFLPrhgWX6IMjaNq+Gd
 xPfxmly47uBviSqON9dMkiThgy0Qj7yi0Pvx+1sAZbD7aj/6A4qg3LX5
 =GIX0
 -----END PGP SIGNATURE-----

Merge tag 'ceph-for-5.7-rc1' of git://github.com/ceph/ceph-client

Pull ceph updates from Ilya Dryomov:
 "The main items are:

   - support for asynchronous create and unlink (Jeff Layton).

     Creates and unlinks are satisfied locally, without waiting for a
     reply from the MDS, provided the client has been granted
     appropriate caps (new in v15.y.z ("Octopus") release). This can be
     a big help for metadata heavy workloads such as tar and rsync.
     Opt-in with the new nowsync mount option.

   - multiple blk-mq queues for rbd (Hannes Reinecke and myself).

     When the driver was converted to blk-mq, we settled on a single
     blk-mq queue because of a global lock in libceph and some other
     technical debt. These have since been addressed, so allocate a
     queue per CPU to enhance parallelism.

   - don't hold onto caps that aren't actually needed (Zheng Yan).

     This has been our long-standing behavior, but it causes issues with
     some active/standby applications (synchronous I/O, stalls if the
     standby goes down, etc).

   - .snap directory timestamps consistent with ceph-fuse (Luis
     Henriques)"

* tag 'ceph-for-5.7-rc1' of git://github.com/ceph/ceph-client: (49 commits)
  ceph: fix snapshot directory timestamps
  ceph: wait for async creating inode before requesting new max size
  ceph: don't skip updating wanted caps when cap is stale
  ceph: request new max size only when there is auth cap
  ceph: cleanup return error of try_get_cap_refs()
  ceph: return ceph_mdsc_do_request() errors from __get_parent()
  ceph: check all mds' caps after page writeback
  ceph: update i_requested_max_size only when sending cap msg to auth mds
  ceph: simplify calling of ceph_get_fmode()
  ceph: remove delay check logic from ceph_check_caps()
  ceph: consider inode's last read/write when calculating wanted caps
  ceph: always renew caps if mds_wanted is insufficient
  ceph: update dentry lease for async create
  ceph: attempt to do async create when possible
  ceph: cache layout in parent dir on first sync create
  ceph: add new MDS req field to hold delegated inode number
  ceph: decode interval_sets for delegated inos
  ceph: make ceph_fill_inode non-static
  ceph: perform asynchronous unlink if we have sufficient caps
  ceph: don't take refs to want mask unless we have all bits
  ...
2020-04-08 21:44:05 -07:00
Linus Torvalds
c6b80eb89b overlayfs update for 5.7
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCXosx9gAKCRDh3BK/laaZ
 PPW3AQDYShgXR4gqVL25lxJ1IKaIikIug8EC7S9/a3DMNMpPQAEA+kCrdkpnaJVc
 DESmHyMDw7EtgeZXu+xkRlFfEU8BOgc=
 =0WQh
 -----END PGP SIGNATURE-----

Merge tag 'ovl-update-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs

Pull overlayfs update from Miklos Szeredi:

 - Fix failure to copy-up files from certain NFSv4 mounts

 - Sort out inconsistencies between st_ino and i_ino (used in /proc/locks)

 - Allow consistent (POSIX-y) inode numbering in more cases

 - Allow virtiofs to be used as upper layer

 - Miscellaneous cleanups and fixes

* tag 'ovl-update-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: document xino expected behavior
  ovl: enable xino automatically in more cases
  ovl: avoid possible inode number collisions with xino=on
  ovl: use a private non-persistent ino pool
  ovl: fix WARN_ON nlink drop to zero
  ovl: fix a typo in comment
  ovl: replace zero-length array with flexible-array member
  ovl: ovl_obtain_alias(): don't call d_instantiate_anon() for old
  ovl: strict upper fs requirements for remote upper fs
  ovl: check if upper fs supports RENAME_WHITEOUT
  ovl: allow remote upper
  ovl: decide if revalidate needed on a per-dentry basis
  ovl: separate detection of remote upper layer from stacked overlay
  ovl: restructure dentry revalidation
  ovl: ignore failure to copy up unknown xattrs
  ovl: document permission model
  ovl: simplify i_ino initialization
  ovl: factor out helper ovl_get_root()
  ovl: fix out of date comment and unreachable code
  ovl: fix value of i_ino for lower hardlink corner case
2020-04-08 21:40:30 -07:00
Linus Torvalds
5602b0af9d linux-watchdog 5.7-rc1 tag
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.14 (GNU/Linux)
 
 iEYEABECAAYFAl6Nl4sACgkQ+iyteGJfRspOOgCg3r8HYs8OCR/COd3hjgTSjhAj
 oN0AmwfjdeNT7Ni8RDKe/lkOY4PBrjR1
 =g/01
 -----END PGP SIGNATURE-----

Merge tag 'linux-watchdog-5.7-rc1' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - add TI K3 RTI watchdog

 - add stop_on_reboot parameter to control reboot policy

 - wm831x_wdt: Remove GPIO handling

 - several small fixes, improvements and clean-ups

* tag 'linux-watchdog-5.7-rc1' of git://www.linux-watchdog.org/linux-watchdog:
  watchdog: Add K3 RTI watchdog support
  dt-bindings: watchdog: Add support for TI K3 RTI watchdog
  watchdog: ziirave_wdt: change name to be more specific
  watchdog: orion: use 0 for unset heartbeat
  watchdog: npcm: remove whitespaces
  watchdog: reset last_hw_keepalive time at start
  watchdog: imx2_wdt: Drop .remove callback
  watchdog: Add stop_on_reboot parameter to control reboot policy
  watchdog: wm831x_wdt: Remove GPIO handling
  watchdog: imx7ulp: Remove unused include of init.h
  watchdog: imx_sc_wdt: Remove unused includes
  watchdog: qcom: Use irq flags from firmware
  watchdog: pm8916_wdt: Add system sleep callbacks
  watchdog: qcom-wdt: disable pretimeout on timer platform
2020-04-08 21:29:10 -07:00
Masahiro Yamada
a0d1c951ef kbuild: support LLVM=1 to switch the default tools to Clang/LLVM
As Documentation/kbuild/llvm.rst implies, building the kernel with a
full set of LLVM tools gets very verbose and unwieldy.

Provide a single switch LLVM=1 to use Clang and LLVM tools instead
of GCC and Binutils. You can pass it from the command line or as an
environment variable.

Please note LLVM=1 does not turn on the integrated assembler. You need
to pass LLVM_IAS=1 to use it. When the upstream kernel is ready for the
integrated assembler, I think we can make it default.

We discussed what we need, and we agreed to go with a simple boolean
flag that switches both target and host tools:

  https://lkml.org/lkml/2020/3/28/494
  https://lkml.org/lkml/2020/4/3/43

Some items discussed, but not adopted:

- LLVM_DIR

  When multiple versions of LLVM are installed, I just thought supporting
  LLVM_DIR=/path/to/my/llvm/bin/ might be useful.

  CC      = $(LLVM_DIR)clang
  LD      = $(LLVM_DIR)ld.lld
    ...

  However, we can handle this by modifying PATH. So, we decided to not do
  this.

- LLVM_SUFFIX

  Some distributions (e.g. Debian) package specific versions of LLVM with
  naming conventions that use the version as a suffix.

  CC      = clang$(LLVM_SUFFIX)
  LD      = ld.lld(LLVM_SUFFIX)
    ...

  will allow a user to pass LLVM_SUFFIX=-11 to use clang-11 etc.,
  but the suffixed versions in /usr/bin/ are symlinks to binaries in
  /usr/lib/llvm-#/bin/, so this can also be handled by PATH.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com> # build
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
2020-04-09 03:18:21 +09:00
Masahiro Yamada
7e20e47c70 kbuild: replace AS=clang with LLVM_IAS=1
The 'AS' variable is unused for building the kernel. Only the remaining
usage is to turn on the integrated assembler. A boolean flag is a better
fit for this purpose.

AS=clang was added for experts. So, I replaced it with LLVM_IAS=1,
breaking the backward compatibility.

Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
2020-04-09 03:18:09 +09:00
Mike Marshall
aa317d3351 orangefs: clarify build steps for test server in orangefs.txt
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2020-04-08 13:01:03 -04:00
Takashi Iwai
ddd5609fe8 ASoC: Fixes for v5.7
A collection of fixes that have been accumilated since the merge window,
 mainly relating to x86 platform support.
 -----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCgAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl6N8tITHGJyb29uaWVA
 a2VybmVsLm9yZwAKCRAk1otyXVSH0PEcB/9uSF5cBy7917NwXCJ6NuyVpKlytJPx
 Abqf4bZ3WbhhONBBZ0VWvCqfW9KpiOsSiU3pngmNAGy/9DCirvhX5GUrHaiPHVN8
 PeKqy4eGbB1Pj4qZ00HT12bDx3imPKHGmR+LCOXusnEn4vhW1gkfkLFWksiGM35d
 lrmNCBKl90fRJC81dm3RUpH6gwnR5cosu15XhTKpKBqDQPraDWyjfmMNtQhKDpvB
 /r+qmOYMCz0UM51yfsjEqAz88BYVmR6xjh3+tkaXU6hg6nacnBYy70ycGmDSoUpd
 31WmjCZ6wZ74I0Fltybg6S3zuMYHoJfI19b8Z6rrGE2MiSFZKlohALes
 =NRG8
 -----END PGP SIGNATURE-----

Merge tag 'asoc-fix-v5.7' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v5.7

A collection of fixes that have been accumilated since the merge window,
mainly relating to x86 platform support.
2020-04-08 18:08:09 +02:00
Fangrui Song
0f44fbc162 Documentation/llvm: fix the name of llvm-size
The tool is called llvm-size, not llvm-objsize.

Fixes: fcf1b6a35c ("Documentation/llvm: add documentation on building w/ Clang/LLVM")
Signed-off-by: Fangrui Song <maskray@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-04-09 00:13:45 +09:00
Dominique Martinet
c6f141412d 9p: document short read behaviour with O_NONBLOCK
Regular files opened with O_NONBLOCK allow read to return after a single
round-trip with the server instead of trying to fill buffer.
Add a few lines in 9p documentation to describe that.

Link: http://lkml.kernel.org/r/1586193572-1375-1-git-send-email-asmadeus@codewreck.org
Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
2020-04-08 17:05:28 +02:00
Borislav Petkov
0aa78b105f Documentation/changes: Raise minimum supported binutils version to 2.23
The currently minimum-supported binutils version 2.21 has the problem of
promoting symbols which are defined outside of a section into absolute.
According to Arvind:

  binutils-2.21 and -2.22. An x86-64 defconfig will fail with
          Invalid absolute R_X86_64_32S relocation: _etext
  and after fixing that one, with
          Invalid absolute R_X86_64_32S relocation: __end_of_kernel_reserve

Those two versions of binutils have a bug when it comes to handling
symbols defined outside of a section and binutils 2.23 has the proper
fix, see: https://sourceware.org/legacy-ml/binutils/2012-06/msg00155.html

Therefore, up to the fixed version directly, skipping the broken ones.

Currently shipping distros already have the fixed binutils version so
there should be no breakage resulting from this.

For more details about the whole thing, see the thread in Link.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200110202349.1881840-1-nivedita@alum.mit.edu
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-04-09 00:02:00 +09:00
Vilhelm Prytz
6de0848030 Documentation: firmware-guide: ACPI: fix table alignment in namespace.rst
Fixe the alignment in the ACPI block diagram (RST table)
by adding missing spaces

Signed-off-by: Vilhelm Prytz <vilhelm@prytznet.se>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-08 14:27:48 +02:00
Linus Torvalds
f5e94d10e4 drm fixes for 5.7-rc1
core:
 - revert drm_mm atomic patch
 - dt binding fixes
 
 fbcon:
 - null ptr error fix
 
 i915:
 - GVT fixes
 
 nouveau:
 - runpm fix
 - svm fixes
 
 amdgpu:
 - HDCP fixes
 - gfx10 fix
 - Misc display fixes
 - BACO fixes
 
 amdkfd:
 - Fix memory leak
 
 vboxvideo:
 - remove conflicting fbs
 
 vc4:
 - mode validation fix
 
 xen:
 - fix PTR_ERR usage
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJejR7RAAoJEAx081l5xIa+heoP/jBjHdwaZsLOkZFqFr8613mR
 juL53xEn7RK7lnVSWBRqAdJznRyJqAyCtDrxW5Au3t0x6zetOv3AhS8fQBtqv/Ze
 ghSdLZdjuTd4Lm2qyS2aWU3DBNnBlYcGcTD6bxwJn3EXSSR1z8YabT2osOOhj7cz
 HwZjhW/XmIOpuhCKDEyyzeTCSLRISBdzgipIbuUXHeqUGB2jt/vpHTiqm+FgTFo5
 hrHfM2EPpUK7LDq+REfXFeIwaQvtRDB1AJ3p8JM9iLt2GvTfavjGIDKDG9XReQhC
 l8WeaMQD69ZbujmBX+XRuP7qj+vfnVYcV/RuMm8Yr09W2Ac8RZOQknvp9PlVmqVl
 xYAvSu1DSD/88/5fvaDxYR2pyCE2ui+3hbFd9WHGFEX8h/cIhGJZ+cZqDO4K0nmY
 vw5JmtSr0Eiwrv2dFn/CFYCxxGz0BdGxVOskbUCwZUPHaTLTAbpfFIaKEABW/sbR
 k5P+cQFjxUJMbCMQeZKSa7L2GZAjf/K/SKyRNMeBuCsfn8KpEUo1W4hhGijtxL//
 akwBFwVeZ0bLTELwB6mFdYGQ987vIcfYjJV0ochPlJCPWJ1OGx6jh1+gYR81W7Np
 5mVFApS2FybmBaTQYWH0E+AhJxyxEHE6spgaGCgCHTlknANmCu3lF90NFVPAK7JB
 Vvlj3gJnOzoguejWzomE
 =HNn4
 -----END PGP SIGNATURE-----

Merge tag 'drm-next-2020-04-08' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "This is a set of fixes that have queued up, I think I might have
  another pull with some more before rc1 but I'd like to dequeue what I
  have now just in case Easter is more eggciting that expected.

  The main thing in here is a fix for a longstanding nouveau power
  management issues on certain laptops, it should help runtime
  suspend/resume for a lot of people.

  There is also a reverted patch for some drm_mm behaviour in atomic
  contexts.

  Summary:

  core:
   - revert drm_mm atomic patch
   - dt binding fixes

  fbcon:
   - null ptr error fix

  i915:
   - GVT fixes

  nouveau:
   - runpm fix
   - svm fixes

  amdgpu:
   - HDCP fixes
   - gfx10 fix
   - Misc display fixes
   - BACO fixes

  amdkfd:
   - Fix memory leak

  vboxvideo:
   - remove conflicting fbs

  vc4:
   - mode validation fix

  xen:
   - fix PTR_ERR usage"

* tag 'drm-next-2020-04-08' of git://anongit.freedesktop.org/drm/drm: (41 commits)
  drm/nouveau/kms/nv50-: wait for FIFO space on PIO channels
  drm/nouveau/nvif: protect waits against GPU falling off the bus
  drm/nouveau/nvif: access PTIMER through usermode class, if available
  drm/nouveau/gr/gp107,gp108: implement workaround for HW hanging during init
  drm/nouveau: workaround runpm fail by disabling PCI power management on certain intel bridges
  drm/nouveau/svm: remove useless SVM range check
  drm/nouveau/svm: check for SVM initialized before migrating
  drm/nouveau/svm: fix vma range check for migration
  drm/nouveau: remove checks for return value of debugfs functions
  drm/nouveau/ttm: evict other IO mappings when running out of BAR1 space
  drm/amdkfd: kfree the wrong pointer
  drm/amd/display: increase HDCP authentication delay
  drm/amd/display: Correctly cancel future watchdog and callback events
  drm/amd/display: Don't try hdcp1.4 when content_type is set to type1
  drm/amd/powerplay: move the ASIC specific nbio operation out of smu_v11_0.c
  drm/amd/powerplay: drop redundant BIF doorbell interrupt operations
  drm/amd/display: Fix dcn21 num_states
  drm/amd/display: Enable BT2020 in COLOR_ENCODING property
  drm/amd/display: LFC not working on 2.0x range monitors (v2)
  drm/amd/display: Support plane level CTM
  ...
2020-04-07 20:24:34 -07:00
Linus Torvalds
9ebe5422ad Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "An update to the Goodix touchscreen driver to enable it work properly
  on various Bay Trail and Cherry Trail devices, and a few other
  assorted changes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (26 commits)
  Input: update SPDX tag for input-event-codes.h
  Input: i8042 - add Acer Aspire 5738z to nomux list
  Input: goodix - fix compilation when ACPI support is disabled
  dt-bindings: touchscreen: Convert edt-ft5x06 to json-schema
  Input: of_touchscreen - explicitly choose axis
  Input: goodix - support gt9147 touchpanel
  dt-bindings: touchscreen: goodix: support of gt9147
  Input: goodix - add support for Goodix GT917S
  Input: goodix - use string-based chip ID
  dt-bindings: input: touchscreen: add compatible string for Goodix GT917S
  Input: goodix - add support for more then one touch-key
  Input: goodix - fix spurious key release events
  Input: goodix - try to reset the controller if the i2c-test fails
  Input: goodix - restore config on resume if necessary
  Input: goodix - make goodix_send_cfg() take a raw buffer as argument
  Input: goodix - add minimum firmware size check
  Input: goodix - save a copy of the config from goodix_read_config()
  Input: goodix - move defines to above struct goodix_ts_data declaration
  Input: goodix - add support for controlling the IRQ pin through ACPI methods
  Input: goodix - add support for getting IRQ + reset GPIOs on Bay Trail devices
  ...
2020-04-07 20:20:12 -07:00
Linus Torvalds
34183ddd13 - Convert tsens configuration DT binding to yaml (Rajeshwari)
- Add interrupt support on the rcar sensor (Niklas Söderlund)
 
 - Add a new Spreadtrum thermal driver (Baolin Wang)
 
 - Add thermal binding for the fsl scu board, a new API to retrieve the
   sensor id bound to the thermal zone and i.MX system controller
   sensor (Anson Huang))
 
 - Remove warning log when a deferred probe is requested on Exynos
   (Marek Szyprowski)
 
 - Add the thermal monitoring unit support for imx8mm with its DT
   bindings (Anson Huang)
 
 - Rephrase the Kconfig text for clarity (Linus Walleij)
 
 - Use the gpio descriptor for the ti-soc-thermal (Linus Walleij)
 
 - Align msg structure to 4 bytes for i.MX SC, fix the Kconfig
   dependency, add the __may_be unused annotation for PM functions and
   the COMPILE_TEST option for imx8mm (Anson Huang)
 
 - Fix a dependency on regmap in Kconfig for qoriq (Yuantian Tang)
 
 - Add DT binding and support for the rcar gen3 r8a77961 and improve
   the error path on the rcar init function (Niklas Söderlund)
 
 - Cleanup and improvements for the tsens Qcom sensor (Amit Kucheria)
 
 - Improve code by removing lock and caching values in the rcar thermal
   sensor (Niklas Söderlund)
 
 - Cleanup in the qoriq drivers and add a call to
   imx_thermal_unregister_legacy_cooling in the removal function (Anson
   Huang)
 
 - Remove redundant 'maxItems' in tsens and sprd DT bindings (Rob Herring)
 
 - Change the thermal DT bindings by making the cooling-maps optional
   (Yuantian Tang)
 
 - Add Tiger Lake support (Sumeet Pawnikar)
 
 - Use scnprintf() for avoiding potential buffer overflow (Takashi Iwai)
 
 - Make pkg_temp_lock a raw_spinlock_t(Clark Williams)
 
 - Fix incorrect data types by changing them to signed on i.MX SC (Anson Huang)
 
 - Replace zero-length array with flexible-array member (Gustavo A. R. Silva)
 
 - Add support for i.MX8MP in the driver and in the DT bindings (Anson Huang)
 
 - Fix return value of the cpufreq_set_cur_state() function (Willy Wolff)
 
 - Remove abusing and scary WARN_ON in the cpufreq cooling device
   (Daniel Lezcano)
 
 - Fix build warning of incorrect argument type reported by sparse on
   imx8mm (Anson Huang)
 
 - Fix stub for the devfreq cooling device (Martin Blumenstingl)
 
 - Fix cpu idle cooling documentation (Sergey Vidishev)
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEGn3N4YVz0WNVyHskqDIjiipP6E8FAl6MXkEACgkQqDIjiipP
 6E+BIggAh52YBU8D8GthsvCPTgka95+wAIaZtx4Y7UnhvshHhM2w+m97TQOXK373
 95mwO9mwQuAoksSmLo7pBQYJ7HItQ26Yoq9akpOL6EiT+BEWiqoHJgl+afVVtoKa
 n67d3Pa6coup1+PQNIA8kpTIOmUQTP8THtwpZ3HlChWsg22NTd0QUGpGJ1TtBD/q
 KqMdQjxahFJ4RTYsnECWBkw3EMkczMNMgdrXEvm4rMkcaJzv9g2ZPqerOShK/RzP
 8sejWczt6jaRwu4hLpd/lLikTSHZoXMFJ8ylAiQXFELCPAQIrMS/ae+dTGJ4qP7x
 hkjsewPbeA1Z+al/IBVHiCtOzKkICQ==
 =XDYl
 -----END PGP SIGNATURE-----

Merge tag 'thermal-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux

Pull thermal updates from Daniel Lezcano:

 - Convert tsens configuration DT binding to yaml (Rajeshwari)

 - Add interrupt support on the rcar sensor (Niklas Söderlund)

 - Add a new Spreadtrum thermal driver (Baolin Wang)

 - Add thermal binding for the fsl scu board, a new API to retrieve the
   sensor id bound to the thermal zone and i.MX system controller sensor
   (Anson Huang))

 - Remove warning log when a deferred probe is requested on Exynos
   (Marek Szyprowski)

 - Add the thermal monitoring unit support for imx8mm with its DT
   bindings (Anson Huang)

 - Rephrase the Kconfig text for clarity (Linus Walleij)

 - Use the gpio descriptor for the ti-soc-thermal (Linus Walleij)

 - Align msg structure to 4 bytes for i.MX SC, fix the Kconfig
   dependency, add the __may_be unused annotation for PM functions and
   the COMPILE_TEST option for imx8mm (Anson Huang)

 - Fix a dependency on regmap in Kconfig for qoriq (Yuantian Tang)

 - Add DT binding and support for the rcar gen3 r8a77961 and improve the
   error path on the rcar init function (Niklas Söderlund)

 - Cleanup and improvements for the tsens Qcom sensor (Amit Kucheria)

 - Improve code by removing lock and caching values in the rcar thermal
   sensor (Niklas Söderlund)

 - Cleanup in the qoriq drivers and add a call to
   imx_thermal_unregister_legacy_cooling in the removal function (Anson
   Huang)

 - Remove redundant 'maxItems' in tsens and sprd DT bindings (Rob
   Herring)

 - Change the thermal DT bindings by making the cooling-maps optional
   (Yuantian Tang)

 - Add Tiger Lake support (Sumeet Pawnikar)

 - Use scnprintf() for avoiding potential buffer overflow (Takashi Iwai)

 - Make pkg_temp_lock a raw_spinlock_t(Clark Williams)

 - Fix incorrect data types by changing them to signed on i.MX SC (Anson
   Huang)

 - Replace zero-length array with flexible-array member (Gustavo A. R.
   Silva)

 - Add support for i.MX8MP in the driver and in the DT bindings (Anson
   Huang)

 - Fix return value of the cpufreq_set_cur_state() function (Willy
   Wolff)

 - Remove abusing and scary WARN_ON in the cpufreq cooling device
   (Daniel Lezcano)

 - Fix build warning of incorrect argument type reported by sparse on
   imx8mm (Anson Huang)

 - Fix stub for the devfreq cooling device (Martin Blumenstingl)

 - Fix cpu idle cooling documentation (Sergey Vidishev)

* tag 'thermal-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (52 commits)
  Documentation: cpu-idle-cooling: Fix diagram for 33% duty cycle
  thermal: devfreq_cooling: inline all stubs for CONFIG_DEVFREQ_THERMAL=n
  thermal: imx8mm: Fix build warning of incorrect argument type
  thermal/drivers/cpufreq_cooling: Remove abusing WARN_ON
  thermal/drivers/cpufreq_cooling: Fix return of cpufreq_set_cur_state
  thermal: imx8mm: Add i.MX8MP support
  dt-bindings: thermal: imx8mm-thermal: Add support for i.MX8MP
  thermal: qcom: tsens.h: Replace zero-length array with flexible-array member
  thermal: imx_sc_thermal: Fix incorrect data type
  thermal: int340x_thermal: Use scnprintf() for avoiding potential buffer overflow
  thermal: int340x: processor_thermal: Add Tiger Lake support
  thermal/x86_pkg_temp: Make pkg_temp_lock a raw_spinlock_t
  dt-bindings: thermal: make cooling-maps property optional
  dt-bindings: thermal: qcom-tsens: Remove redundant 'maxItems'
  dt-bindings: thermal: sprd: Remove redundant 'maxItems'
  thermal: imx: Calling imx_thermal_unregister_legacy_cooling() in .remove
  thermal: qoriq: Sort includes alphabetically
  thermal: qoriq: Use devm_add_action_or_reset() to handle all cleanups
  thermal: rcar_thermal: Remove lock in rcar_thermal_get_current_temp()
  thermal: rcar_thermal: Do not store ctemp in rcar_thermal_priv
  ...
2020-04-07 20:00:16 -07:00
Linus Torvalds
8645f09bad - New Drivers
- Add support for IQS620A/621/622/624/625 Azoteq IQS62X Sensors
 
  - New Device Support
    - Add support for ADC, IRQ, Regulator, RTC and WDT to Ricoh RN5T618 PMIC
    - Add support for Comet Lake to Intel LPSS
 
  - New Functionality
    - Add support for Charger Detection to Spreadtrum SC27xx PMICs
    - Add support for Interrupt Polarity to Dialog Semi DA9062/61 PMIC
    - Add ACPI enumeration support to Diolan DLN2 USB Adaptor
 
  - Fix-ups
    - Device Tree; iqs62x, rn5t618, cros_ec_dev, stm32-lptimer, rohm,bd71837, rohm,bd71847
    - I2C registration; rn5t618
    - Kconfig; MFD_CPCAP, AB8500_CORE, MFD_WM8994, MFD_WM97xx, MFD_STPMIC1
    - Use flexible-array members; omap-usb-tll, qcom-pm8xxx
    - Remove unnecessary casts; omap-usb-host, omap-usb-tll
    - Power (suspend/resume/poweroff) enhancements; rk808
    - Improve error/sanity checking; dln2
    - Use snprintf(); aat2870-core
 
  - Bug Fixes
    - Fix PCI IDs; intel-lpss-pci
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEdrbJNaO+IJqU8IdIUa+KL4f8d2EFAl6MSwsACgkQUa+KL4f8
 d2GklhAAk1e0tYu1w4yS0IE40mReDk5ycOE1O8Q75qWw5Af2dK48qvSHGDwaU4ES
 WNYZ3Mr/OUrvd+/XU8EXI6NXAi9W75ye2J2KmmDDL6yXnDuHbzBZF8ifEtXQKSOp
 rElzCJVnXehpjSfwa4cp5f1Msox/rFg1Kpmaas48j8U2JYCmn51GsQCCG6qMIx2i
 0ZvXNZuz+eTY3V7l6pRLfTYqwR8E5Y11ryWJaeliyDcVpUlZaykiXuxD7pbqLjJo
 8v9ISm67rzf6X5zmi6YhdvpIAzpomdRaaxHfVDkeCKqDgpuWGiq0xXA86vDKwjah
 qVx6rK/wg4YM5uSEomxIgVj9uvvLSytDqvRlPe7vFKgkR0Xhl5SdkiwadI4P9zkr
 zrRGNRAUHsZ4ZrlObD0QJWOQYnIg5oCmRouRKcHtQVZYP3rSdRz/1oC6FN8LVqUw
 3NfLB/S6uBCJ3uahckrgnjQughnvmsAzlflcNV2t+P8di8Cwyh2A5N9qkT/oI67o
 Xf7NODSdu0JzzTgsM+EJ2JphSLMYaekWs06qAXyibPrrS2SoThE79igCmNOkyyR7
 obJfN2SM5k4LkhMGlYbPfbRT2Hoa+9OJozBe3WgiW3kwTdFVB9aen2U230tHplbB
 g/NuVS+PrReR5lfzT+O8dodH7lj5/GhmGsapdguFVhXYIE+2CMg=
 =hJ2o
 -----END PGP SIGNATURE-----

Merge tag 'mfd-next-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull mfd updates from Lee Jones:
 "New Drivers:
   - Add support for IQS620A/621/622/624/625 Azoteq IQS62X Sensors

  New Device Support:
   - Add support for ADC, IRQ, Regulator, RTC and WDT to Ricoh RN5T618 PMIC
   - Add support for Comet Lake to Intel LPSS

  New Functionality:
   - Add support for Charger Detection to Spreadtrum SC27xx PMICs
   - Add support for Interrupt Polarity to Dialog Semi DA9062/61 PMIC
   - Add ACPI enumeration support to Diolan DLN2 USB Adaptor

  Fix-ups:
   - Device Tree; iqs62x, rn5t618, cros_ec_dev, stm32-lptimer, rohm,bd71837, rohm,bd71847
   - I2C registration; rn5t618
   - Kconfig; MFD_CPCAP, AB8500_CORE, MFD_WM8994, MFD_WM97xx, MFD_STPMIC1
   - Use flexible-array members; omap-usb-tll, qcom-pm8xxx
   - Remove unnecessary casts; omap-usb-host, omap-usb-tll
   - Power (suspend/resume/poweroff) enhancements; rk808
   - Improve error/sanity checking; dln2
   - Use snprintf(); aat2870-core

  Bug Fixes:
   - Fix PCI IDs in intel-lpss-pci"

* tag 'mfd-next-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (33 commits)
  mfd: intel-lpss: Fix Intel Elkhart Lake LPSS I2C input clock
  mfd: aat2870: Use scnprintf() for avoiding potential buffer overflow
  mfd: dln2: Allow to be enumerated via ACPI
  mfd: da9062: Add support for interrupt polarity defined in device tree
  dt-bindings: bd718x7: Yamlify and add BD71850
  mfd: dln2: Fix sanity checking for endpoints
  mfd: intel-lpss: Add Intel Comet Lake PCH-V PCI IDs
  mfd: sc27xx: Add USB charger type detection support
  dt-bindings: mfd: Document STM32 low power timer bindings
  mfd: rk808: Convert RK805 to shutdown/suspend hooks
  mfd: rk808: Reduce shutdown duplication
  mfd: rk808: Stop using syscore ops
  mfd: rk808: Ensure suspend/resume hooks always work
  mfd: rk808: Always use poweroff when requested
  mfd: omap: Remove useless cast for driver.name
  mfd: Kconfig: Fix some misspelling of the word functionality
  mfd: pm8xxx: Replace zero-length array with flexible-array member
  mfd: omap-usb-tll: Replace zero-length array with flexible-array member
  mfd: cpcap: Fix compile if MFD_CORE is not selected
  mfd: cros_ec: Check DT node for usbpd-notify add
  ...
2020-04-07 19:48:52 -07:00
Dave Airlie
3208a24f2b A bunch of fixes to avoid null pointer dereference in fbcon, fix a return
in xen, some DT bindings fixes, a vc4 issue with 1920x1200 mode validation,
 and a conflicting framebuffer in vboxvideo.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCXohMogAKCRDj7w1vZxhR
 xd7kAQCCO8qphr1Quf7SeyCW5hVLiikpeQKoxnYX2jO7M/+SKQD/XEtxDX5qZ6Jx
 pVBu2N8Qr+fKSnxG6VNF/eg6XAO6igg=
 =NZMp
 -----END PGP SIGNATURE-----

Merge tag 'drm-misc-next-fixes-2020-04-04' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

A bunch of fixes to avoid null pointer dereference in fbcon, fix a return
in xen, some DT bindings fixes, a vc4 issue with 1920x1200 mode validation,
and a conflicting framebuffer in vboxvideo.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200404090057.a3m7uw6tavwtcyon@gilmour.lan
2020-04-08 09:14:34 +10:00
Linus Torvalds
63bef48fd6 Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:

 - a lot more of MM, quite a bit more yet to come: (memcg, pagemap,
   vmalloc, pagealloc, migration, thp, ksm, madvise, virtio,
   userfaultfd, memory-hotplug, shmem, rmap, zswap, zsmalloc, cleanups)

 - various other subsystems (procfs, misc, MAINTAINERS, bitops, lib,
   checkpatch, epoll, binfmt, kallsyms, reiserfs, kmod, gcov, kconfig,
   ubsan, fault-injection, ipc)

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (158 commits)
  ipc/shm.c: make compat_ksys_shmctl() static
  ipc/mqueue.c: fix a brace coding style issue
  lib/Kconfig.debug: fix a typo "capabilitiy" -> "capability"
  ubsan: include bug type in report header
  kasan: unset panic_on_warn before calling panic()
  ubsan: check panic_on_warn
  drivers/misc/lkdtm/bugs.c: add arithmetic overflow and array bounds checks
  ubsan: split "bounds" checker from other options
  ubsan: add trap instrumentation option
  init/Kconfig: clean up ANON_INODES and old IO schedulers options
  kernel/gcov/fs.c: replace zero-length array with flexible-array member
  gcov: gcc_3_4: replace zero-length array with flexible-array member
  gcov: gcc_4_7: replace zero-length array with flexible-array member
  kernel/kmod.c: fix a typo "assuems" -> "assumes"
  reiserfs: clean up several indentation issues
  kallsyms: unexport kallsyms_lookup_name() and kallsyms_on_each_symbol()
  samples/hw_breakpoint: drop use of kallsyms_lookup_name()
  samples/hw_breakpoint: drop HW_BREAKPOINT_R when reporting writes
  fs/binfmt_elf.c: don't free interpreter's ELF pheaders on common path
  fs/binfmt_elf.c: allocate less for static executable
  ...
2020-04-07 14:11:54 -07:00
Linus Torvalds
f40f31cadc f2fs-for-5.7-rc1
In this round, we've mainly focused on fixing bugs and addressing issues in
 recently introduced compression support.
 
 Enhancement:
 - add zstd support, and set LZ4 by default
 - add ioctl() to show # of compressed blocks
 - show mount time in debugfs
 - replace rwsem with spinlock
 - avoid lock contention in DIO reads
 
 Some major bug fixes wrt compression:
 - compressed block count
 - memory access and leak
 - remove obsolete fields
 - flag controls
 
 Other bug fixes and clean ups:
 - fix overflow when handling .flags in inode_info
 - fix SPO issue during resize FS flow
 - fix compression with fsverity enabled
 - potential deadlock when writing compressed pages
 - show missing mount options
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE00UqedjCtOrGVvQiQBSofoJIUNIFAl6L5f0ACgkQQBSofoJI
 UNImoQ/7BHKpwgpgH/DuydO9ess0XuUgQPQxyj+LE79l0jdBo8FxQZJVNAekx2+h
 ANTDHjsgqry6xuczOJXzFhECoOrCqZuffrkQM1p3owfzOH9Wrx6aiOomFBJyk/WB
 kXAY7LDPUwGF5uDB8tvVhM082qLXOlP0coO57f9Ip/OpaG8YOkti+KbcOKJrJ9o3
 63IAzu89D/9XJw8834rDSersiEenSJm3jLC12uOxgXMzjDb1Ul1JH0P51gEu6g6O
 3df5tiGJcFfaKVVWPHG+UEfav6mvi28+zU9f+dSmL0Wvb8dIqSgUf6ty8KCuRBYw
 kQYi+E0G1dcGi99AitCOrFxzY+oEo/A5wq2HDI6RkNlu6krD8qYNyWcMbP7dNHnU
 /5BVN+5d78iR1vKZpTo4X6dojf6B21Tn/OmABSZ5d7B6pI2fY5bjy2WgSLSY7YvP
 A6sepb9RAAGvpKvvkHI7gYwDKFMel+vfD6em1SKH5iKaDC0rJTUDUy8PTz/qMPBS
 vMn396dLx+TzTa0dZUuSF8NNk6sPZEReC3AuMNAIPSKiuD7tatRxvutHeEg5ktrr
 ggOQB67MfKjPMBKmgMIm6XMuILcCGIB1MqbPRlyKtC6rjdMPIKKOfeHJlLFmYwfF
 gqvCIFlW4DlxHpHH+LbUFKoUA3zofltL91SHUVATJjmiZIT2pqQ=
 =FVxq
 -----END PGP SIGNATURE-----

Merge tag 'f2fs-for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we've mainly focused on fixing bugs and addressing
  issues in recently introduced compression support.

  Enhancement:
   - add zstd support, and set LZ4 by default
   - add ioctl() to show # of compressed blocks
   - show mount time in debugfs
   - replace rwsem with spinlock
   - avoid lock contention in DIO reads

  Some major bug fixes wrt compression:
   - compressed block count
   - memory access and leak
   - remove obsolete fields
   - flag controls

  Other bug fixes and clean ups:
   - fix overflow when handling .flags in inode_info
   - fix SPO issue during resize FS flow
   - fix compression with fsverity enabled
   - potential deadlock when writing compressed pages
   - show missing mount options"

* tag 'f2fs-for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (66 commits)
  f2fs: keep inline_data when compression conversion
  f2fs: fix to disable compression on directory
  f2fs: add missing CONFIG_F2FS_FS_COMPRESSION
  f2fs: switch discard_policy.timeout to bool type
  f2fs: fix to verify tpage before releasing in f2fs_free_dic()
  f2fs: show compression in statx
  f2fs: clean up dic->tpages assignment
  f2fs: compress: support zstd compress algorithm
  f2fs: compress: add .{init,destroy}_decompress_ctx callback
  f2fs: compress: fix to call missing destroy_compress_ctx()
  f2fs: change default compression algorithm
  f2fs: clean up {cic,dic}.ref handling
  f2fs: fix to use f2fs_readpage_limit() in f2fs_read_multi_pages()
  f2fs: xattr.h: Make stub helpers inline
  f2fs: fix to avoid double unlock
  f2fs: fix potential .flags overflow on 32bit architecture
  f2fs: fix NULL pointer dereference in f2fs_verity_work()
  f2fs: fix to clear PG_error if fsverity failed
  f2fs: don't call fscrypt_get_encryption_info() explicitly in f2fs_tmpfile()
  f2fs: don't trigger data flush in foreground operation
  ...
2020-04-07 13:48:26 -07:00
Joakim Lönnegren
19905fe667 Documentation: driver-api/usb/writing_usb_driver.rst Updates documentation links
In writing_usb_driver.rst:
Remove link to https://www.qbik.ch/usb/devices/ since it seems to be inactive since 2013
Update link to linux-usb mailing list archive

Signed-off-by: Joakim Lönnegren <joakimlonnegren@gmail.com>
Link: https://lore.kernel.org/r/20200312201354.285839-1-joakimlonnegren@gmail.om
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-07 13:43:55 -06:00
Lukas Bulwahn
2abf99b94c docs: driver-api: address duplicate label warning
Delete identically named subsection to fix Documentation warning:

  Documentation/driver-api/w1.rst:11: \
  WARNING: duplicate label driver-api/w1:w1 api internal to the kernel, \
  other instance in Documentation/driver-api/w1.rst

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20200330060132.7773-1-lukas.bulwahn@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-07 13:41:34 -06:00
Linus Torvalds
d5d247661e OpenRISC updates for 5.6
A few cleanups all over the place, things of note:
  - Enable the clone3 syscall
  - Remove CONFIG_CROSS_COMPILE from Krzysztof Kozlowski
  - Update to use mmgrab from Julia Lawall
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE2cRzVK74bBA6Je/xw7McLV5mJ+QFAl6Ma4EACgkQw7McLV5m
 J+R+nRAAhGFdmzGCizblS1CqXxUEp58EJgQ6LwmDLiDcXBwZYiw3nh3pQq0hF6sP
 SJQuyZH1HmNLkvKmLylyRowrqW8bHfr3ePOwMfqtX0kzt1DlDn/Nibq8Ua0MrqGv
 CSNI0wbBFNb6+ej1lIS6wAwYd3Ji4XmPupBk2zo6BMAfM1mEzndw7FKf8imIyOMB
 hH1sumKBc+zKAMmINs+BiCxO1T/Fc9M7FUpL7Ai18OpOAXr/dDQR5ej8b7BlOJ45
 hkwJZa3iBMRTsptiqAvX/CswsrsBhEqoLe7Z2+XH8+wR0Kp7rXiKI05kPykBN+aj
 x7KUP2Kr9Mg4samb+QWfxGT27YIKhhPwbJSRdLITtTsp9gd+g1sNYZah/nOHhq87
 U24ZdCcQDQ33yebsJIiBEZ8FAeg7gvzTQRPiqpxulLjXYSEFrprOklPn7PL0R0Fw
 KsOkUrRsEgpXzTA9bCcr5jOLbR7HomdnkHRE5h6LTcnddiyHoViYMMrhreMAVzFY
 UG7DG8K1t8FX89qVEMTvG0mIdUUldTQ+MvYiA9sELQoYT6ZmlZzgeai9vPCfEfP5
 pAgSfJyH3VlqKygqwHLrtyiHEm77nbufdPHy/f4YBXBitmfcD17+gldRtT2mBtXF
 yr5xwPccJnk9SiBs0ihe80zUHaM3N52M1lWJIErjeRc134oaeSU=
 =3Y8m
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://github.com/openrisc/linux

Pull OpenRISC updates from Stafford Horne:
 "A few cleanups all over the place, things of note:

   - Enable the clone3 syscall

   - Remove CONFIG_CROSS_COMPILE from Krzysztof Kozlowski

   - Update to use mmgrab from Julia Lawall"

* tag 'for-linus' of git://github.com/openrisc/linux:
  openrisc: Remove obsolete show_trace_task function
  openrisc: Cleanup copy_thread_tls docs and comments
  openrisc: Enable the clone3 syscall
  openrisc: Convert copy_thread to copy_thread_tls
  openrisc: use mmgrab
  openrisc: configs: Cleanup CONFIG_CROSS_COMPILE
2020-04-07 12:33:37 -07:00
Alyssa Ross
8699039042 Documentation: sysrq: fix RST formatting
"On x86" and "On SPARC" are now definition list terms, like
"On PowerPC", "On other", and "On all".

The Credits list is now a bulleted list, like lots of Credits lists in
other files.  This prevents the list from becoming a single long,
unpunctuated sentence in the generated documentation.

I also did a couple of other tiny readability improvements to the
"How do I use the magic SysRq key?" section while I was there.

Signed-off-by: Alyssa Ross <hi@alyssa.is>
Link: https://lore.kernel.org/r/20200403170701.10852-1-hi@alyssa.is
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-07 13:32:15 -06:00
Jimmy Assarsson
cd4ca34153 docs: kernel-parameters.txt: Fix broken references
Fix remaining broken references in kernel-parameters.txt.

Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Jimmy Assarsson <jimmyassarsson@gmail.com>
Link: https://lore.kernel.org/r/20200402172614.3020-2-jimmyassarsson@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-07 13:29:35 -06:00
Jimmy Assarsson
ed01b03018 docs: kernel-parameters.txt: Remove nompx
x86/mpx was removed in commit 45fc24e89b
("x86/mpx: remove MPX from arch/x86"), this removes the documentation of
parameter nompx.

Fixes: 45fc24e89b ("x86/mpx: remove MPX from arch/x86")
Signed-off-by: Jimmy Assarsson <jimmyassarsson@gmail.com>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/r/20200402172614.3020-1-jimmyassarsson@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-07 13:28:56 -06:00
Vilhelm Prytz
86f93e7447 docs: filesystems: fix typo in qnx6.rst
- 'structer' replaced with 'structure'

Signed-off-by: Vilhelm Prytz <vilhelm@prytznet.se>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-07 13:20:56 -06:00
Linus Torvalds
479a72c0c6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) Slave bond and team devices should not be assigned ipv6 link local
    addresses, from Jarod Wilson.

 2) Fix clock sink config on some at803x PHY devices, from Oleksij
    Rempel.

 3) Uninitialized stack space transmitted in slcan frames, fix from
    Richard Palethorpe.

 4) Guard HW VLAN ops properly in stmmac driver, from Jose Abreu.

 5) "=" --> "|=" fix in aquantia driver, from Colin Ian King.

 6) Fix TCP fallback in mptcp, from Florian Westphal. (accessing a plain
    tcp_sk as if it were an mptcp socket).

 7) Fix cavium driver in some configurations wrt. PTP, from Yue Haibing.

 8) Make ipv6 and ipv4 consistent in the lower bound allowed for
    neighbour entry retrans_time, from Hangbin Liu.

 9) Don't use private workqueue in pegasus usb driver, from Petko
    Manolov.

10) Fix integer overflow in mlxsw, from Colin Ian King.

11) Missing refcnt init in cls_tcindex, from Cong Wang.

12) One too many loop iterations when processing cmpri entries in ipv6
    rpl code, from Alexander Aring.

13) Disable SG and TSO by default in r8169, from Heiner Kallweit.

14) NULL deref in macsec, from Davide Caratti.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (42 commits)
  macsec: fix NULL dereference in macsec_upd_offload()
  skbuff.h: Improve the checksum related comments
  net: dsa: bcm_sf2: Ensure correct sub-node is parsed
  qed: remove redundant assignment to variable 'rc'
  wimax: remove some redundant assignments to variable result
  mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_VLAN_MANGLE
  mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_PRIORITY
  r8169: change back SG and TSO to be disabled by default
  net: dsa: bcm_sf2: Do not register slave MDIO bus with OF
  ipv6: rpl: fix loop iteration
  tun: Don't put_page() for all negative return values from XDP program
  net: dsa: mt7530: fix null pointer dereferencing in port5 setup
  mptcp: add some missing pr_fmt defines
  net: phy: micrel: kszphy_resume(): add delay after genphy_resume() before accessing PHY registers
  net_sched: fix a missing refcnt in tcindex_init()
  net: stmmac: dwmac1000: fix out-of-bounds mac address reg setting
  mlxsw: spectrum_trap: fix unintention integer overflow on left shift
  pegasus: Remove pegasus' own workqueue
  neigh: support smaller retrans_time settting
  net: openvswitch: use hlist_for_each_entry_rcu instead of hlist_for_each_entry
  ...
2020-04-07 12:03:32 -07:00
Maciej S. Szmigiero
bb8b93b5b6 mm/zswap: allow setting default status, compressor and allocator in Kconfig
The compressed cache for swap pages (zswap) currently needs from 1 to 3
extra kernel command line parameters in order to make it work: it has to
be enabled by adding a "zswap.enabled=1" command line parameter and if one
wants a different compressor or pool allocator than the default lzo / zbud
combination then these choices also need to be specified on the kernel
command line in additional parameters.

Using a different compressor and allocator for zswap is actually pretty
common as guides often recommend using the lz4 / z3fold pair instead of
the default one.  In such case it is also necessary to remember to enable
the appropriate compression algorithm and pool allocator in the kernel
config manually.

Let's avoid the need for adding these kernel command line parameters and
automatically pull in the dependencies for the selected compressor
algorithm and pool allocator by adding an appropriate default switches to
Kconfig.

The default values for these options match what the code was using
previously as its defaults.

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Vitaly Wool <vitaly.wool@konsulko.com>
Link: http://lkml.kernel.org/r/20200202000112.456103-1-mail@maciej.szmigiero.name
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07 10:43:41 -07:00
Baoquan He
f3cd4c865b mm/memory_hotplug.c: only respect mem= parameter during boot stage
In commit 357b4da50a ("x86: respect memory size limiting via mem=
parameter") a global varialbe max_mem_size is added to store the value
parsed from 'mem= ', then checked when memory region is added.  This truly
stops those DIMMs from being added into system memory during boot-time.

However, it also limits the later memory hotplug functionality.  Any DIMM
can't be hotplugged any more if its region is beyond the max_mem_size.  We
will get errors like:

[  216.387164] acpi PNP0C80:02: add_memory failed
[  216.389301] acpi PNP0C80:02: acpi_memory_enable_device() error
[  216.392187] acpi PNP0C80:02: Enumeration failure

This will cause issue in a known use case where 'mem=' is added to the
hypervisor.  The memory that lies after 'mem=' boundary will be assigned
to KVM guests.  After commit 357b4da50a merged, memory can't be extended
dynamically if system memory on hypervisor is not sufficient.

So fix it by also checking if it's during boot-time restricting to add
memory.  Otherwise, skip the restriction.

And also add this use case to document of 'mem=' kernel parameter.

Fixes: 357b4da50a ("x86: respect memory size limiting via mem= parameter")
Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Link: http://lkml.kernel.org/r/20200204050643.20925-1-bhe@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07 10:43:40 -07:00
Martin Cracauer
57e5d4f278 userfaultfd: wp: UFFDIO_REGISTER_MODE_WP documentation update
Add documentation about the write protection support.

[peterx@redhat.com: rewrite in rst format; fixups here and there]
Signed-off-by: Martin Cracauer <cracauer@cons.org>
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Bobby Powers <bobbypowers@gmail.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Denis Plotnikov <dplotnikov@virtuozzo.com>
Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Kirill A . Shutemov" <kirill@shutemov.name>
Cc: Marty McFadden <mcfadden8@llnl.gov>
Cc: Maya Gokhale <gokhale2@llnl.gov>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Shaohua Li <shli@fb.com>
Link: http://lkml.kernel.org/r/20200220163112.11409-17-peterx@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07 10:43:39 -07:00
Alexander Duyck
1edca85e76 mm/page_reporting: add free page reporting documentation
Add documentation for free page reporting.  Currently the only consumer is
virtio-balloon, however it is possible that other drivers might make use
of this so it is best to add a bit of documetation explaining at a high
level how to use the API.

Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Nitesh Narayan Lal <nitesh@redhat.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Pankaj Gupta <pagupta@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Wang <wei.w.wang@intel.com>
Cc: Yang Zhang <yang.zhang.wz@gmail.com>
Cc: wei qi <weiqi4@huawei.com>
Link: http://lkml.kernel.org/r/20200211224730.29318.43815.stgit@localhost.localdomain
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07 10:43:39 -07:00
David Rientjes
85b9f46e8e mm, thp: track fallbacks due to failed memcg charges separately
The thp_fault_fallback and thp_file_fallback vmstats are incremented if
either the hugepage allocation fails through the page allocator or the
hugepage charge fails through mem cgroup.

This patch leaves this field untouched but adds two new fields,
thp_{fault,file}_fallback_charge, which is incremented only when the mem
cgroup charge fails.

This distinguishes between attempted hugepage allocations that fail due to
fragmentation (or low memory conditions) and those that fail due to mem
cgroup limits.  That can be used to determine the impact of fragmentation
on the system by excluding faults that failed due to memcg usage.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Yang Shi <yang.shi@linux.alibaba.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Jeremy Cline <jcline@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Link: http://lkml.kernel.org/r/alpine.DEB.2.21.2003061422070.7412@chino.kir.corp.google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07 10:43:38 -07:00