Commit Graph

983580 Commits

Author SHA1 Message Date
Linus Torvalds
e1ae4b0be1 Merge branch 'mtd/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd fixes from Miquel Raynal.

* 'mtd/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: rawnand: omap: Use BCH private fields in the specific OOB layout
  mtd: spinand: Fix MTD_OPS_AUTO_OOB requests
  mtd: rawnand: intel: check the mtd name only after setting the variable
  mtd: rawnand: nandsim: Fix the logic when selecting Hamming soft ECC engine
  mtd: rawnand: gpmi: fix dst bit offset when extracting raw payload
2021-01-23 12:02:58 -08:00
Linus Torvalds
077e81d51d Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Another bunch  of driver fixes"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: sprd: depend on COMMON_CLK to fix compile tests
  Revert "i2c: imx: Remove unused .id_table support"
  i2c: octeon: check correct size of maximum RECV_LEN packet
  i2c: tegra: Create i2c_writesl_vi() to use with VI I2C for filling TX FIFO
  i2c: bpmp-tegra: Ignore unknown I2C_M flags
  i2c: tegra: Wait for config load atomically while in ISR
2021-01-23 11:43:02 -08:00
Linus Torvalds
15cfb0f06d SCSI fixes on 20210122
Twelve minor fixes, all in drivers or doc.  Most of the fixes are
 pretty obvious (although we have 2 goes to get the UFS sysfs doc
 right) and the biggest change is in the ufs driver which they've
 extensively tested.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCYAuJ7yYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishdSKAQCYdEz0
 LFFqQPk5yhj+WftIO1KPDk9PFUHY9BKPtgRaDQEAya3dtTUkZRD5QklZ9Xk856JH
 Vf/QhunNamyw4ooHhBI=
 =2r9L
 -----END PGP SIGNATURE-----

Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Twelve minor fixes, all in drivers or doc.

  Most of the fixes are pretty obvious (although we had two goes to get
  the UFS sysfs doc right) and the biggest change is in the ufs driver
  which they've extensively tested"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ibmvfc: Set default timeout to avoid crash during migration
  scsi: target: tcmu: Fix use-after-free of se_cmd->priv
  scsi: fnic: Fix memleak in vnic_dev_init_devcmd2
  scsi: libfc: Avoid invoking response handler twice if ep is already completed
  scsi: scsi_transport_srp: Don't block target in failfast state
  scsi: docs: ABI: sysfs-driver-ufs: Rectify table formatting
  scsi: ufs: Fix tm request when non-fatal error happens
  scsi: ufs: Fix livelock of ufshcd_clear_ua_wluns()
  scsi: ibmvfc: Fix missing cast of ibmvfc_event pointer to u64 handle
  scsi: ufs: ufshcd-pltfrm depends on HAS_IOMEM
  scsi: megaraid_sas: Fix MEGASAS_IOC_FIRMWARE regression
  scsi: docs: ABI: sysfs-driver-ufs: Add DeepSleep power mode
2021-01-23 11:35:02 -08:00
Linus Torvalds
929b979611 linux-kselftest-kunit-fixes-5.11-rc5
This KUnit update for Linux 5.11-rc5 consist of 5 fixes to kunit tool
 and documentation from Daniel Latypov and David Gow.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmALbwMACgkQCwJExA0N
 QxxkRhAA4x1n5r1IhkH8jSZ15E0zDrE6eQpAJIyM5R5+ZCLfZXtgMEVK4OzYdzC1
 5z0ZdAYp/xcalbhYnKozv8TH9fe/Zkzj76DJRt45Ajo90RMG5Tnx6z3UWtsBlW+3
 mVzJPTM2nGNHuVnoVOQHnnZQMrPiCkTNm1ccjCG6u98MdPGpzRfoZydG4uCJ1UbB
 /3+j2UKoScW2oRDXUNszfiCQDACkzrXydPgr9L/+vqHgj8tGXMXaA/jZnOu++xFx
 Oy1vvWOXcTtfLfNWTZfEEKwjxIqGZq3V576JptiuAfWjadyg3XYAXk86vGpiX+g7
 cyDcOY+7AA7eL3KK+1E8bLRCL0q1GxiTHMBc3q+WK5DAUbz63Y6MT8PG2D1V1k9p
 dSEz0jL1lx5Hu6k3ABw5xLE4MzNeozI5kETsFk35GHCi7dzLi7FJEPM9vcj15kQ9
 tmN5GOHJ5bNRfy0pYcR/b67tnr6SmRRx0ion2RQNB84C2Vbx/g53FTzPKUaryKVv
 Jm0aWHqL2/ooBE2uruYCbre6502ol4lCypWd+dAq54/vJANVkgqxdM0NuLe8RjtY
 DjzMmIfRNyOvCLXcAcDHwbMVci0N5HR6YbEgdeF+ySk5hXjlL1+iR1pqevS5iUuA
 0zp0tITyTjZTDUQos1I6RF5eUqhiS7WtHBQkTfK1FyHg9kVxkns=
 =4uNi
 -----END PGP SIGNATURE-----

Merge tag 'linux-kselftest-kunit-fixes-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kunit fixes from Shuah :
 "Five fixes to the kunit tool and documentation from Daniel Latypov and
  David Gow"

* tag 'linux-kselftest-kunit-fixes-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: tool: move kunitconfig parsing into __init__, make it optional
  kunit: tool: fix minor typing issue with None status
  kunit: tool: surface and address more typing issues
  Documentation: kunit: include example of a parameterized test
  kunit: tool: Fix spelling of "diagnostic" in kunit_parser
2021-01-23 11:25:33 -08:00
Ronnie Sahlberg
214a5ea081 cifs: do not fail __smb_send_rqst if non-fatal signals are pending
RHBZ 1848178

The original intent of returning an error in this function
in the patch:
  "CIFS: Mask off signals when sending SMB packets"
was to avoid interrupting packet send in the middle of
sending the data (and thus breaking an SMB connection),
but we also don't want to fail the request for non-fatal
signals even before we have had a chance to try to
send it (the reported problem could be reproduced e.g.
by exiting a child process when the parent process was in
the midst of calling futimens to update a file's timestamps).

In addition, since the signal may remain pending when we enter the
sending loop, we may end up not sending the whole packet before
TCP buffers become full. In this case the code returns -EINTR
but what we need here is to return -ERESTARTSYS instead to
allow system calls to be restarted.

Fixes: b30c74c73c ("CIFS: Mask off signals when sending SMB packets")
Cc: stable@vger.kernel.org # v5.1+
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-01-23 01:28:20 -06:00
Linus Torvalds
fe75a21824 - Fix DM integrity crash if "recalculate" used without "internal_hash"
- Fix DM integrity "recalculate" support to prevent recalculating
   checksums if we use internal_hash or journal_hash with a key
   (e.g. HMAC). Use of crypto as a means to prevent malicious
   corruption requires further changes and was never a design goal for
   dm-integrity's primary usecase of detecting accidental corruption.
 
 - Fix a benign dm-crypt copy-and-paste bug introduced as part of a
   fix that was merged for 5.11-rc4.
 
 - Fix DM core's dm_get_device() to avoid filesystem lookup to get
   block device (if possible).
 -----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCAAxFiEEJfWUX4UqZ4x1O2wixSPxCi2dA1oFAmALT1YTHHNuaXR6ZXJA
 cmVkaGF0LmNvbQAKCRDFI/EKLZ0DWs16B/4tO+s2OPtZ5ge8+SQdADPyrPn9thCU
 SSDeJ0k8WZCETzDw8DI1u5r08DS+Ji4vUruHx4FMrmUZkIeaW4OfyVb6UiWVpDQu
 gHmDL65WjWBMAtJOg2hHukHX04siTESBg67svrCuWVq7uOMha9IyDkrkb1JijjYt
 EcGwaYhtWkZM+8ACUlgaTmuWehQOWRtr6qE/BDtARdqXKgrlODGumBDlcQ8GsABr
 Zm2PE8YOCWJyynGhoRYy94td8/SDrsHSqWI0aNTETUVzGr30xIl54BikOzplbyWo
 pB0PhiIqimPVzkF0loYuZ+PQyK3ayBEmajW7oC7/hT2VrRXS8SnMHbwv
 =csNG
 -----END PGP SIGNATURE-----

Merge tag 'for-5.11/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - Fix DM integrity crash if "recalculate" used without "internal_hash"

 - Fix DM integrity "recalculate" support to prevent recalculating
   checksums if we use internal_hash or journal_hash with a key (e.g.
   HMAC). Use of crypto as a means to prevent malicious corruption
   requires further changes and was never a design goal for
   dm-integrity's primary usecase of detecting accidental corruption.

 - Fix a benign dm-crypt copy-and-paste bug introduced as part of a fix
   that was merged for 5.11-rc4.

 - Fix DM core's dm_get_device() to avoid filesystem lookup to get block
   device (if possible).

* tag 'for-5.11/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm: avoid filesystem lookup in dm_get_dev_t()
  dm crypt: fix copy and paste bug in crypt_alloc_req_aead
  dm integrity: conditionally disable "recalculate" feature
  dm integrity: fix a crash if "recalculate" used without "internal_hash"
2021-01-22 14:31:00 -08:00
Linus Torvalds
faba877b3b perf tools fixes for 5.11, 2nd batch:
- Fix id index used in Intel PT for heterogeneous systems.
 
 - Fix overrun issue in 'perf script' for dynamically-allocated PMU type number.
 
 - Fix 'perf stat' metrics containing the 'duration_time' synthetic event.
 
 - Fix system PMU 'perf stat' metrics.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 
 Test results:
 
 The first ones are container based builds of tools/perf with and without libelf
 support.  Where clang is available, it is also used to build perf with/without
 libelf, and building with LIBCLANGLLVM=1 (built-in clang) with gcc and clang
 when clang and its devel libraries are installed.
 
 The objtool and samples/bpf/ builds are disabled now that I'm switching from
 using the sources in a local volume to fetching them from a http server to
 build it inside the container, to make it easier to build in a container cluster.
 Those will come back later.
 
 Several are cross builds, the ones with -x-ARCH and the android one, and those
 may not have all the features built, due to lack of multi-arch devel packages,
 available and being used so far on just a few, like
 debian:experimental-x-{arm64,mipsel}.
 
 The 'perf test' one will perform a variety of tests exercising
 tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
 with a variety of command line event specifications to then intercept the
 sys_perf_event syscall to check that the perf_event_attr fields are set up as
 expected, among a variety of other unit tests.
 
 Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
 with a variety of feature sets, exercising the build with an incomplete set of
 features as well as with a complete one. It is planned to have it run on each
 of the containers mentioned above, using some container orchestration
 infrastructure. Get in contact if interested in helping having this in place.
 
   $ grep "model name" -m1 /proc/cpuinfo
   model name: AMD Ryzen 9 3900X 12-Core Processor
   # export PERF_TARBALL=http://192.168.86.5/perf/perf-5.11.0-rc4.tar.xz
   # dm
    1    74.71 alpine:3.4                    : Ok   gcc (Alpine 5.3.0) 5.3.0, clang version 3.8.0 (tags/RELEASE_380/final)
    2    77.09 alpine:3.5                    : Ok   gcc (Alpine 6.2.1) 6.2.1 20160822, clang version 3.8.1 (tags/RELEASE_381/final)
    3    80.09 alpine:3.6                    : Ok   gcc (Alpine 6.3.0) 6.3.0, clang version 4.0.0 (tags/RELEASE_400/final)
    4    89.14 alpine:3.7                    : Ok   gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.0 (tags/RELEASE_500/final) (based on LLVM 5.0.0)
    5    87.13 alpine:3.8                    : Ok   gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.1 (tags/RELEASE_501/final) (based on LLVM 5.0.1)
    6    92.37 alpine:3.9                    : Ok   gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 5.0.1 (tags/RELEASE_502/final) (based on LLVM 5.0.1)
    7   118.64 alpine:3.10                   : Ok   gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 8.0.0 (tags/RELEASE_800/final) (based on LLVM 8.0.0)
    8   133.57 alpine:3.11                   : Ok   gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 9.0.0 (https://git.alpinelinux.org/aports f7f0d2c2b8bcd6a5843401a9a702029556492689) (based on LLVM 9.0.0)
    9   125.85 alpine:3.12                   : Ok   gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (https://gitlab.alpinelinux.org/alpine/aports.git 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
   10   136.32 alpine:edge                   : Ok   gcc (Alpine 10.2.0) 10.2.0, Alpine clang version 10.0.1
   11    75.47 alt:p8                        : Ok   x86_64-alt-linux-gcc (GCC) 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1), clang version 3.8.0 (tags/RELEASE_380/final)
   12    93.43 alt:p9                        : Ok   x86_64-alt-linux-gcc (GCC) 8.4.1 20200305 (ALT p9 8.4.1-alt0.p9.1), clang version 10.0.0
   13    92.28 alt:sisyphus                  : Ok   x86_64-alt-linux-gcc (GCC) 9.3.1 20200518 (ALT Sisyphus 9.3.1-alt1), clang version 10.0.1
   14    71.12 amazonlinux:1                 : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2), clang version 3.6.2 (tags/RELEASE_362/final)
   15   109.14 amazonlinux:2                 : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-12), clang version 7.0.1 (Amazon Linux 2 7.0.1-1.amzn2.0.2)
   16    22.81 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   17    22.42 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   18    27.81 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
   19    34.37 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)
   20   107.74 centos:8                      : Ok   gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5), clang version 10.0.1 (Red Hat 10.0.1-1.module_el8.3.0+467+cb298d5b)
   21    71.83 clearlinux:latest             : Ok   gcc (Clear Linux OS for Intel Architecture) 10.2.1 20201217 releases/gcc-10.2.0-643-g7cbb07d2fc, clang version 10.0.1
   22    83.97 debian:8                      : Ok   gcc (Debian 4.9.2-10+deb8u2) 4.9.2, Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based on LLVM 3.5.0)
   23    83.49 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, clang version 3.8.1-24 (tags/RELEASE_381/final)
   24    83.13 debian:10                     : Ok   gcc (Debian 8.3.0-6) 8.3.0, clang version 7.0.1-8+deb10u2 (tags/RELEASE_701/final)
   25    82.58 debian:experimental           : Ok   gcc (Debian 10.2.1-6) 10.2.1 20210110, Debian clang version 11.0.1-2
   26    35.87 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110
   27    33.06 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 10.2.1-3) 10.2.1 20201224
   28    14.47 debian:experimental-x-mipsel  : FAIL mipsel-linux-gnu-gcc (Debian 10.2.1-3) 10.2.1 20201224
 
     util/map.c: In function 'map__new':
     util/map.c:109:5: error: '%s' directive output may be truncated writing between 1 and 2147483645 bytes into a region of size 4096 [-Werror=format-truncation=]
       109 |    "%s/platforms/%s/arch-%s/usr/lib/%s",
           |     ^~
     In file included from /usr/mipsel-linux-gnu/include/stdio.h:867,
                      from util/symbol.h:11,
                      from util/map.c:2:
     /usr/mipsel-linux-gnu/include/bits/stdio2.h:67:10: note: '__builtin___snprintf_chk' output 32 or more bytes (assuming 4294967321) into a destination of size 4096
        67 |   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
           |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        68 |        __bos (__s), __fmt, __va_arg_pack ());
           |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     cc1: all warnings being treated as errors
 
   29    32.67 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
   30    32.61 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.5.0 (tags/RELEASE_350/final)
   31    75.23 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.7.0 (tags/RELEASE_370/final)
   32    89.27 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1), clang version 3.8.1 (tags/RELEASE_381/final)
   33    26.67 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
   34    91.17 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1), clang version 3.9.1 (tags/RELEASE_391/final)
   35   104.12 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2), clang version 4.0.1 (tags/RELEASE_401/final)
   36   105.50 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 5.0.2 (tags/RELEASE_502/final)
   37   118.28 fedora:28                     : Ok   gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 6.0.1 (tags/RELEASE_601/final)
   38   125.28 fedora:29                     : Ok   gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 7.0.1 (Fedora 7.0.1-6.fc29)
   39   127.35 fedora:30                     : Ok   gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 8.0.0 (Fedora 8.0.0-3.fc30)
   40    27.40 fedora:30-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1) 8.3.1 20190225
   41   127.91 fedora:31                     : Ok   gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 9.0.1 (Fedora 9.0.1-4.fc31)
   42   108.77 fedora:32                     : Ok   gcc (GCC) 10.2.1 20201016 (Red Hat 10.2.1-6), clang version 10.0.1 (Fedora 10.0.1-3.fc32)
   43   106.15 fedora:33                     : Ok   gcc (GCC) 10.2.1 20201125 (Red Hat 10.2.1-9), clang version 11.0.0 (Fedora 11.0.0-2.fc33)
   44   107.75 fedora:34                     : Ok   gcc (GCC) 11.0.0 20210116 (Red Hat 11.0.0-0), clang version 11.0.1 (Fedora 11.0.1-4.fc34)
   45   107.07 fedora:rawhide                : Ok   gcc (GCC) 11.0.0 20210116 (Red Hat 11.0.0-0), clang version 11.0.1 (Fedora 11.0.1-4.fc34)
   46    38.19 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 9.3.0-r1 p3) 9.3.0
   47    73.67 mageia:5                      : Ok   gcc (GCC) 4.9.2, clang version 3.5.2 (tags/RELEASE_352/final)
   48    92.39 mageia:6                      : Ok   gcc (Mageia 5.5.0-1.mga6) 5.5.0, clang version 3.9.1 (tags/RELEASE_391/final)
   49   112.04 manjaro:latest                : Ok   gcc (GCC) 10.2.0, clang version 10.0.1
   50   429.06 openmandriva:cooker           : Ok   gcc (GCC) 10.2.0 20200723 (OpenMandriva), OpenMandriva 11.0.0-1 clang version 11.0.0 (/builddir/build/BUILD/llvm-project-llvmorg-11.0.0/clang 63e22714ac938c6b537bd958f70680d3331a2030)
   51   133.40 opensuse:15.0                 : Ok   gcc (SUSE Linux) 7.4.1 20190905 [gcc-7-branch revision 275407], clang version 5.0.1 (tags/RELEASE_501/final 312548)
   52   139.71 opensuse:15.1                 : Ok   gcc (SUSE Linux) 7.5.0, clang version 7.0.1 (tags/RELEASE_701/final 349238)
   53   131.91 opensuse:15.2                 : Ok   gcc (SUSE Linux) 7.5.0, clang version 9.0.1
   54   124.18 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5, clang version 3.8.0 (tags/RELEASE_380/final 262553)
   55   123.24 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 10.2.1 20200825 [revision c0746a1beb1ba073c7981eb09f55b3d993b32e5c], clang version 10.0.1
   56    29.15 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
   57    34.21 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44.0.3)
   58   106.00 oraclelinux:8                 : Ok   gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5.0.1), clang version 10.0.1 (Red Hat 10.0.1-1.0.1.module+el8.3.0+7827+89335dbf)
   59    30.31 ubuntu:12.04                  : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, Ubuntu clang version 3.0-6ubuntu3 (tags/RELEASE_30/final) (based on LLVM 3.0)
   60    33.75 ubuntu:14.04                  : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4
   61    85.21 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609, clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
   62    28.46 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   63    27.47 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   64    27.25 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   65    28.01 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   66    28.28 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   67    28.30 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   68   100.23 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
   69    29.71 ubuntu:18.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
   70    29.52 ubuntu:18.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
   71    24.54 ubuntu:18.04-x-m68k           : Ok   m68k-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   72    29.55 ubuntu:18.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   73    32.13 ubuntu:18.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   74    31.38 ubuntu:18.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   75   164.61 ubuntu:18.04-x-riscv64        : Ok   riscv64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   76    26.98 ubuntu:18.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   77    28.39 ubuntu:18.04-x-sh4            : Ok   sh4-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   78    26.73 ubuntu:18.04-x-sparc64        : Ok   sparc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   79    79.63 ubuntu:19.10                  : Ok   gcc (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008, clang version 8.0.1-3build1 (tags/RELEASE_801/final)
   80    29.04 ubuntu:19.10-x-alpha          : Ok   alpha-linux-gnu-gcc (Ubuntu 9.2.1-9ubuntu1) 9.2.1 20191008
   81    26.90 ubuntu:19.10-x-hppa           : Ok   hppa-linux-gnu-gcc (Ubuntu 9.2.1-9ubuntu1) 9.2.1 20191008
   82    84.70 ubuntu:20.04                  : Ok   gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0, clang version 10.0.0-4ubuntu1
   83    34.34 ubuntu:20.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu 10.2.0-5ubuntu1~20.04) 10.2.0
   84    82.71 ubuntu:20.10                  : Ok   gcc (Ubuntu 10.2.0-13ubuntu1) 10.2.0, Ubuntu clang version 11.0.0-2
   $
 
   # uname -a
   Linux quaco 5.10.7-100.fc32.x86_64 #1 SMP Tue Jan 12 20:25:28 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
   # git log --oneline -1
   8adc0a06d6 perf script: Fix overrun issue for dynamically-allocated PMU type number
   # perf version --build-options
   perf version 5.11.rc4.g8adc0a06d68a
                    dwarf: [ on  ]  # HAVE_DWARF_SUPPORT
       dwarf_getlocations: [ on  ]  # HAVE_DWARF_GETLOCATIONS_SUPPORT
                    glibc: [ on  ]  # HAVE_GLIBC_SUPPORT
            syscall_table: [ on  ]  # HAVE_SYSCALL_TABLE_SUPPORT
                   libbfd: [ on  ]  # HAVE_LIBBFD_SUPPORT
                   libelf: [ on  ]  # HAVE_LIBELF_SUPPORT
                  libnuma: [ on  ]  # HAVE_LIBNUMA_SUPPORT
   numa_num_possible_cpus: [ on  ]  # HAVE_LIBNUMA_SUPPORT
                  libperl: [ on  ]  # HAVE_LIBPERL_SUPPORT
                libpython: [ on  ]  # HAVE_LIBPYTHON_SUPPORT
                 libslang: [ on  ]  # HAVE_SLANG_SUPPORT
                libcrypto: [ on  ]  # HAVE_LIBCRYPTO_SUPPORT
                libunwind: [ on  ]  # HAVE_LIBUNWIND_SUPPORT
       libdw-dwarf-unwind: [ on  ]  # HAVE_DWARF_SUPPORT
                     zlib: [ on  ]  # HAVE_ZLIB_SUPPORT
                     lzma: [ on  ]  # HAVE_LZMA_SUPPORT
                get_cpuid: [ on  ]  # HAVE_AUXTRACE_SUPPORT
                      bpf: [ on  ]  # HAVE_LIBBPF_SUPPORT
                      aio: [ on  ]  # HAVE_AIO_SUPPORT
                     zstd: [ on  ]  # HAVE_ZSTD_SUPPORT
                  libpfm4: [ OFF ]  # HAVE_LIBPFM
   # perf test
    1: vmlinux symtab matches kallsyms                                 : Ok
    2: Detect openat syscall event                                     : Ok
    3: Detect openat syscall event on all cpus                         : Ok
    4: Read samples using the mmap interface                           : Ok
    5: Test data source output                                         : Ok
    6: Parse event definition strings                                  : Ok
    7: Simple expression parser                                        : Ok
    8: PERF_RECORD_* events & perf_sample fields                       : Ok
    9: Parse perf pmu format                                           : Ok
   10: PMU events                                                      :
   10.1: PMU event table sanity                                        : Ok
   10.2: PMU event map aliases                                         : Ok
   10.3: Parsing of PMU event table metrics                            : Ok
   10.4: Parsing of PMU event table metrics with fake PMUs             : Ok
   11: DSO data read                                                   : Ok
   12: DSO data cache                                                  : Ok
   13: DSO data reopen                                                 : Ok
   14: Roundtrip evsel->name                                           : Ok
   15: Parse sched tracepoints fields                                  : Ok
   16: syscalls:sys_enter_openat event fields                          : Ok
   17: Setup struct perf_event_attr                                    : Ok
   18: Match and link multiple hists                                   : Ok
   19: 'import perf' in python                                         : Ok
   20: Breakpoint overflow signal handler                              : Ok
   21: Breakpoint overflow sampling                                    : Ok
   22: Breakpoint accounting                                           : Ok
   23: Watchpoint                                                      :
   23.1: Read Only Watchpoint                                          : Skip (missing hardware support)
   23.2: Write Only Watchpoint                                         : Ok
   23.3: Read / Write Watchpoint                                       : Ok
   23.4: Modify Watchpoint                                             : Ok
   24: Number of exit events of a simple workload                      : Ok
   25: Software clock events period values                             : Ok
   26: Object code reading                                             : Ok
   27: Sample parsing                                                  : Ok
   28: Use a dummy software event to keep tracking                     : Ok
   29: Parse with no sample_id_all bit set                             : Ok
   30: Filter hist entries                                             : Ok
   31: Lookup mmap thread                                              : Ok
   32: Share thread maps                                               : Ok
   33: Sort output of hist entries                                     : Ok
   34: Cumulate child hist entries                                     : Ok
   35: Track with sched_switch                                         : Ok
   36: Filter fds with revents mask in a fdarray                       : Ok
   37: Add fd to a fdarray, making it autogrow                         : Ok
   38: kmod_path__parse                                                : Ok
   39: Thread map                                                      : Ok
   40: LLVM search and compile                                         :
   40.1: Basic BPF llvm compile                                        : Ok
   40.2: kbuild searching                                              : Ok
   40.3: Compile source for BPF prologue generation                    : Ok
   40.4: Compile source for BPF relocation                             : Ok
   41: Session topology                                                : Ok
   42: BPF filter                                                      :
   42.1: Basic BPF filtering                                           : Ok
   42.2: BPF pinning                                                   : Ok
   42.3: BPF prologue generation                                       : Ok
   42.4: BPF relocation checker                                        : Ok
   43: Synthesize thread map                                           : Ok
   44: Remove thread map                                               : Ok
   45: Synthesize cpu map                                              : Ok
   46: Synthesize stat config                                          : Ok
   47: Synthesize stat                                                 : Ok
   48: Synthesize stat round                                           : Ok
   49: Synthesize attr update                                          : Ok
   50: Event times                                                     : Ok
   51: Read backward ring buffer                                       : Ok
   52: Print cpu map                                                   : Ok
   53: Merge cpu map                                                   : Ok
   54: Probe SDT events                                                : Ok
   55: is_printable_array                                              : Ok
   56: Print bitmap                                                    : Ok
   57: perf hooks                                                      : Ok
   58: builtin clang support                                           : Skip (not compiled in)
   59: unit_number__scnprintf                                          : Ok
   60: mem2node                                                        : Ok
   61: time utils                                                      : Ok
   62: Test jit_write_elf                                              : Ok
   63: Test libpfm4 support                                            : Skip (not compiled in)
   64: Test api io                                                     : Ok
   65: maps__merge_in                                                  : Ok
   66: Demangle Java                                                   : Ok
   67: Parse and process metrics                                       : Ok
   68: PE file support                                                 : Ok
   69: Event expansion for cgroups                                     : Ok
   70: Convert perf time to TSC                                        : Ok
   71: x86 rdpmc                                                       : Ok
   72: DWARF unwind                                                    : Ok
   73: x86 instruction decoder - new instructions                      : Ok
   74: Intel PT packet decoder                                         : Ok
   75: x86 bp modify                                                   : Ok
   76: probe libc's inet_pton & backtrace it with ping                 : Ok
   77: Use vfs_getname probe to get syscall args filenames             : Ok
   78: Check Arm CoreSight trace data recording and synthesized samples: Skip
   79: perf stat metrics (shadow stat) test                            : Ok
   80: build id cache operations                                       : Ok
   81: Add vfs_getname probe to get syscall args filenames             : Ok
   82: Check open filename arg using perf trace + vfs_getname          : Ok
   83: Zstd perf.data compression/decompression                        : Ok
   #
 
   $ make -C tools/perf build-test
   make: Entering directory '/home/acme/git/perf/tools/perf'
   - tarpkg: ./tests/perf-targz-src-pkg .
   - /home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP: make FEATURE_DUMP_COPY=/home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP  feature-dump
   make FEATURE_DUMP_COPY=/home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP feature-dump
                  make_perf_o_O: make perf.o
                  make_cscope_O: make cscope
                 make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1 NO_LIBZSTD=1 NO_LIBCAP=1 NO_SYSCALL_TABLE=1
         make_with_babeltrace_O: make LIBBABELTRACE=1
             make_install_bin_O: make install-bin
                    make_help_O: make help
   make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
               make_no_libelf_O: make NO_LIBELF=1
             make_no_demangle_O: make NO_DEMANGLE=1
   - /home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP_STATIC: make FEATURE_DUMP_COPY=/home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP_STATIC  LDFLAGS='-static' feature-dump
   make FEATURE_DUMP_COPY=/home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP_STATIC LDFLAGS='-static' feature-dump
                  make_static_O: make LDFLAGS=-static NO_PERF_READ_VDSO32=1 NO_PERF_READ_VDSOX32=1 NO_JVMTI=1
                 make_no_gtk2_O: make NO_GTK2=1
            make_no_backtrace_O: make NO_BACKTRACE=1
        make_util_pmu_bison_o_O: make util/pmu-bison.o
              make_no_libnuma_O: make NO_LIBNUMA=1
                   make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
                   make_debug_O: make DEBUG=1
              make_util_map_o_O: make util/map.o
                make_no_slang_O: make NO_SLANG=1
                    make_tags_O: make tags
          make_no_syscall_tbl_O: make NO_SYSCALL_TABLE=1
                    make_pure_O: make
                 make_install_O: make install
               make_no_libbpf_O: make NO_LIBBPF=1
               make_clean_all_O: make clean all
         make_no_libbpf_DEBUG_O: make NO_LIBBPF=1 DEBUG=1
            make_no_libcrypto_O: make NO_LIBCRYPTO=1
                     make_doc_O: make doc
              make_no_libperl_O: make NO_LIBPERL=1
               make_with_gtk2_O: make GTK2=1
            make_no_libbionic_O: make NO_LIBBIONIC=1
             make_no_libaudit_O: make NO_LIBAUDIT=1
            make_no_libpython_O: make NO_LIBPYTHON=1
             make_no_auxtrace_O: make NO_AUXTRACE=1
          make_install_prefix_O: make install prefix=/tmp/krava
          make_with_clangllvm_O: make LIBCLANGLLVM=1
            make_no_libunwind_O: make NO_LIBUNWIND=1
                 make_no_newt_O: make NO_NEWT=1
              make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
                  make_no_sdt_O: make NO_SDT=1
            make_with_libpfm4_O: make LIBPFM4=1
    make_install_prefix_slash_O: make install prefix=/tmp/krava/
   OK
   make: Leaving directory '/home/acme/git/perf/tools/perf'
   $
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCYArSrgAKCRCyPKLppCJ+
 J3ChAP0bv2ggYKptupmTplXhiSjfhARtjU4w4GgIXVOT890CqwEAlFcFpE/GHMva
 8fUFmBOsr74Oux+6QUaTFw90rdKKjQk=
 =GVY4
 -----END PGP SIGNATURE-----

Merge tag 'perf-tools-fixes-v5.11-2-2021-01-22' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull more perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix id index used in Intel PT for heterogeneous systems

 - Fix overrun issue in 'perf script' for dynamically-allocated PMU type
   number

 - Fix 'perf stat' metrics containing the 'duration_time' synthetic
   event

 - Fix system PMU 'perf stat' metrics

* tag 'perf-tools-fixes-v5.11-2-2021-01-22' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf script: Fix overrun issue for dynamically-allocated PMU type number
  perf metricgroup: Fix system PMU metrics
  perf metricgroup: Fix for metrics containing duration_time
  perf evlist: Fix id index for heterogeneous systems
2021-01-22 13:55:00 -08:00
Linus Torvalds
1c304c77f7 arm64 fixes:
- Correctly mask out bits 63:60 in a kernel tag check fault address
   (specified as unknown by the architecture). Previously they were just
   zeroed but for kernel pointers they need to be all ones.
 
 - Fix a panic (unexpected kernel BRK exception) caused by kprobes being
   reentered due to an interrupt.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE5RElWfyWxS+3PLO2a9axLQDIXvEFAmALIhIACgkQa9axLQDI
 XvGnLxAAsesFE4W3Kc9CSTv9cWBK3uQobR4j58iQtnQwXQiuOnxnwnFdEswDVI9L
 u1hDCD9u0D2AsJLdjh61sxlsks/Jr8LfKbICL0jFC2tjdqfOgy/JUXjOxN3eRL5z
 5Iy41s+3HlfdZXmK7cq2zN/1QfVrvpjM0GH2FPd2tZCR8OOtK6IneFXCOj824m8S
 gZqrvTbem07mmNWS3MjjZUiL8FKNancCDrcE0CQ0CXZh/19kDzWxXf0lktYEH/Ax
 KWz2de8nqBuUnbib7ZQUf9caeaV6duUYFZGmQxb4eyWaU0ZhPCenOQeVbEs2Xu0w
 Nef131jJ0k7bZRBRpD2wlaOWDG5cu29Cr7cT/qYPs20RM8mR6SiAHBZAitvdlxRi
 VN8GQVDTgf+dt9TvnoywcuvH358cLBR35ewPrcQrMDc21d8KSfisjUZ5hnmK/0dW
 ZzNdmET7Ntdwew3zrKjRouEpA9yFgU/d54A2QaSx/oNNqQ/Gy8x5y/4Dcbub0k3t
 qki8R7AtznWWjLtMD5Q2v6pD9NyjtIkst17pwaUtVW/6tlWMgo2YqSipqiE6hAaF
 We84d2qb2vqiIaIW82SuORTixj1Ow26B2+x4+PZ8u6gZiMOUqjCBCYHm5tPDw5hS
 7e46RsYoNj71jW+T0fTHsZ4HAvjXz/sWFHKsndwUDQYcWu2IYfE=
 =7H6e
 -----END PGP SIGNATURE-----

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Correctly mask out bits 63:60 in a kernel tag check fault address
   (specified as unknown by the architecture). Previously they were just
   zeroed but for kernel pointers they need to be all ones.

 - Fix a panic (unexpected kernel BRK exception) caused by kprobes being
   reentered due to an interrupt.

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: kprobes: Fix Uexpected kernel BRK exception at EL1
  kasan, arm64: fix pointer tags in KASAN reports
2021-01-22 13:51:17 -08:00
Linus Torvalds
a9034304ff A patch to zero out sensitive cryptographic data and two minor cleanups
prompted by the fact that a bunch of code was moved in this cycle.
 -----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAmAK9skTHGlkcnlvbW92
 QGdtYWlsLmNvbQAKCRBKf944AhHziyGwB/9rZnaaYR6Frqc2tzE5vbVtjAxvhftn
 pGDr8laOHiK5jnKR+ljNlPAe07TSEK+qVidulX05moujKrZeIrDUJZnEpScrssZO
 o7Tm99dHziqJc10liembtSZzB3LzGJyW1hgavC5Vjo7JW+EZ+YR9x2pFKCO7Hz/M
 QlT6kQmXZLnsLB2OieAyC9Yb7IMD1wfiOHHvOZDeFpIn49Z8reFahI+dSwwK/uOv
 UouxZKKuaikSTvzp8WmTiuCpsUfBMOaDy5/pWLfBS+/116K2aieJmzSjUb2MZwDT
 cLGhzrkyeCkBeFO5vhnob3n9KqWXN03I9rPB25StcrHCRYcHa3z/D/4k
 =9COg
 -----END PGP SIGNATURE-----

Merge tag 'ceph-for-5.11-rc5' of git://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
 "A patch to zero out sensitive cryptographic data and two minor
  cleanups prompted by the fact that a bunch of code was moved in this
  cycle"

* tag 'ceph-for-5.11-rc5' of git://github.com/ceph/ceph-client:
  libceph: fix "Boolean result is used in bitwise operation" warning
  libceph, ceph: disambiguate ceph_connection_operations handlers
  libceph: zero out session key and connection secret
2021-01-22 13:47:25 -08:00
Linus Torvalds
df7da31d05 mm/memblock: fix typo in comment of memblock_phys_alloc_try_nid()
-----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCAAxFiEEeOVYVaWZL5900a/pOQOGJssO/ZEFAmALANQTHHJwcHRAbGlu
 dXguaWJtLmNvbQAKCRA5A4Ymyw79kVurB/0U2nnuQCDcxApzL+MW/XPuhK/FogpS
 wdpGXz3xrhb4f6M+SW80U6e2/Uoi4UH3J9RfkGRlTzyOB+mHiBBPMARVwsqkiik/
 M/PQOMqyE9kzl6yPuh9jI9WVAeD5odRpCDKGOVvVpLc6NzCtveyw7xjaYJ8kTDf8
 +0lxPlNsIqHudRknbHAzaxzLpciB5Q5oH3mkfXe7tMRdA8mswY1Mg4oImHS/yc7E
 Tw4WQuxmsr+GMQpf2cFST2M9cp1vr6Q0TXqAKj/r9/oYBn94AAiYRf9zEqkRa9sW
 uczL1kXuXIMGM28nE5trx6S4D8WZr7suhE2j64C4vq+Xxkq+mEK89jmY
 =0HWL
 -----END PGP SIGNATURE-----

Merge tag 'fixes-2021-01-22' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock

Pull typo fix from Mike Rapoport:
 "Fix typo in comment of memblock_phys_alloc_try_nid()"

* tag 'fixes-2021-01-22' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  mm/memblock: Fix typo in comment of memblock_phys_alloc_try_nid()
2021-01-22 13:45:52 -08:00
Linus Torvalds
59a4560e85 MMC core:
- Fix initialization of block size when ext_csd isn't present
 
 MMC host:
  - sdhci-brcmstb: Fix mmc timeout errors on S5 suspend
  - sdhci-of-dwcmshc: Fix request accessing RPMB
  - sdhci-xenon: Fix 1.8v regulator stabilization
 -----BEGIN PGP SIGNATURE-----
 
 iQJLBAABCgA1FiEEugLDXPmKSktSkQsV/iaEJXNYjCkFAmAKneMXHHVsZi5oYW5z
 c29uQGxpbmFyby5vcmcACgkQ/iaEJXNYjCnqPA/7B/27oZc0zen6v50cPFsopasE
 NwsHMpDALaQDbYFClMUBpc8ydUHwPTQEwoxTZbis9fgsE5e4gcXSiKQa0ZPqylFq
 agMmsy+vndUME0LK0xC6PVZxuLeMYorRdsEs2qsS3h4u15jGRaHeH6513KlCpYIg
 /RIzPoxJuOIskmPbA+4n0H8rD/xs/adJma2Em2eNKzzObOm9h+iEMARjGntYWvKf
 rkl+hFsVmyySjXFN+waLTZ/hbpJ9SpOrrq23g10hx+qAHRaaRSR+9EZ5+wgxW5vl
 7J1kepm3D6Ugc+2poBZhGq8lsD2F1R4juMVzmxe50/RKISIm4XCPArU1/h8tSXLy
 saiNRaMe6wGheZmM83qUJDu0dGJYxrFuc7Fb+Mc1ZSg/OR6/N5/fzDfQxHA8SsLU
 h2tZsWfU3K6ta9Pf/aSbhGw7O7HKOeQJCX0KBulyAW5QHZ8uGMyYoCVOG9EvZNpw
 cH8vB4NSyWP0+JkFQEgjMR3a7FttZhvqXbB6RASfyTp+o7d5EzMMWv5CcBZ9l0+O
 MrT5ZTP24Hmi4U0qtJEeAhyMRNe0aIlwH2zqKo+aFIPQy2j3c0T6NZvbu95r54dm
 PKBAo2NBUFtOSFMm9bHgNEq1/hXqESK9Bda8wJRzTTQAqP6F7d+hp5eb4VgfygyV
 ofnyH3Cm4r2rfaRoOKU=
 =SoNe
 -----END PGP SIGNATURE-----

Merge tag 'mmc-v5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "MMC core:
   - Fix initialization of block size when ext_csd isn't present

  MMC host:
   - sdhci-brcmstb: Fix mmc timeout errors on S5 suspend
   - sdhci-of-dwcmshc: Fix request accessing RPMB
   - sdhci-xenon: Fix 1.8v regulator stabilization"

* tag 'mmc-v5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: core: don't initialize block size from ext_csd if not present
  mmc: sdhci-brcmstb: Fix mmc timeout errors on S5 suspend
  mmc: sdhci-xenon: fix 1.8v regulator stabilization
  mmc: sdhci-of-dwcmshc: fix rpmb access
2021-01-22 13:43:42 -08:00
Linus Torvalds
9887e9af2d platform-drivers-x86 for v5.11-2
A small collection of bug-fixes and model-specific quirks for 5.11.
 
 The following is an automated git shortlog grouped by driver:
 
 amd-pmc:
  -  Fix CONFIG_DEBUG_FS check
 
 hp-wmi:
  -  Don't log a warning on HPWMI_RET_UNKNOWN_COMMAND errors
 
 i2c-multi-instantiate:
  -  Don't create platform device for INT3515 ACPI nodes
 
 ideapad-laptop:
  -  Disable touchpad_switch for ELAN0634
 
 intel-vbtn:
  -  Drop HP Stream x360 Convertible PC 11 from allow-list
  -  Support for tablet mode on Dell Inspiron 7352
 
 platform/surface:
  -  SURFACE_PLATFORMS should depend on ACPI
  -  surface_gpe: Fix non-PM_SLEEP build warnings
 
 thinkpad_acpi:
  -  Add P53/73 firmware to fan_quirk_table for dual fan control
  -  correct palmsensor error checking
 
 tools/power/x86/intel-speed-select:
  -  Set higher of cpuinfo_max_freq or base_frequency
  -  Set scaling_max_freq to base_frequency
 
 touchscreen_dmi:
  -  Add swap-x-y quirk for Goodix touchscreen on Estar Beauty HD tablet
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEEuvA7XScYQRpenhd+kuxHeUQDJ9wFAmAKkwMUHGhkZWdvZWRl
 QHJlZGhhdC5jb20ACgkQkuxHeUQDJ9wSKQf9Gr04Nb+F50SReA+OA9nrAjvm9m1b
 HKl0hSXQXTDydsKyJ7WujtuiW4MocMjSkLQQpL9CEfdPdhCCVld/2lpMsE7F6VcJ
 wto0DZATbNwdACeiDSPcORYThpbIC+pzYHgQRJJWX31vR2aRqpi8mmzg0VBQdKco
 IMFoyg5HrD1ZS20Zw0Ho4bBbZFeE0J3NegcU9tloo6AS5PJeadDeHaiSjMedPecP
 squrCBni3hC04NTaIRX2yODVvQjopR0XV4H4YKd8UxyU3yW6UfG4rK11UHOmZHTd
 qdOdgUQqUn8Y2lgOZJbkoP+wpbJSYbYberQUC43PltWpf++JLhhS7GNLEA==
 =EU2D
 -----END PGP SIGNATURE-----

Merge tag 'platform-drivers-x86-v5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Hans de Goede:
 "A small collection of bug-fixes and model-specific quirks"

* tag 'platform-drivers-x86-v5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: thinkpad_acpi: Add P53/73 firmware to fan_quirk_table for dual fan control
  platform/x86: hp-wmi: Don't log a warning on HPWMI_RET_UNKNOWN_COMMAND errors
  platform/x86: intel-vbtn: Drop HP Stream x360 Convertible PC 11 from allow-list
  platform/x86: ideapad-laptop: Disable touchpad_switch for ELAN0634
  platform/x86: amd-pmc: Fix CONFIG_DEBUG_FS check
  platform/x86: thinkpad_acpi: correct palmsensor error checking
  platform/x86: intel-vbtn: Support for tablet mode on Dell Inspiron 7352
  platform/x86: touchscreen_dmi: Add swap-x-y quirk for Goodix touchscreen on Estar Beauty HD tablet
  platform/x86: i2c-multi-instantiate: Don't create platform device for INT3515 ACPI nodes
  platform/surface: SURFACE_PLATFORMS should depend on ACPI
  platform/surface: surface_gpe: Fix non-PM_SLEEP build warnings
  tools/power/x86/intel-speed-select: Set higher of cpuinfo_max_freq or base_frequency
  tools/power/x86/intel-speed-select: Set scaling_max_freq to base_frequency
2021-01-22 13:38:40 -08:00
Pavel Begunkov
9a173346bd io_uring: fix short read retries for non-reg files
Sockets and other non-regular files may actually expect short reads to
happen, don't retry reads for them. Because non-reg files don't set
FMODE_BUF_RASYNC and so it won't do second/retry do_read, we can filter
out those cases after first do_read() attempt with ret>0.

Cc: stable@vger.kernel.org # 5.9+
Suggested-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-01-22 12:42:54 -07:00
Jens Axboe
607ec89ed1 io_uring: fix SQPOLL IORING_OP_CLOSE cancelation state
IORING_OP_CLOSE is special in terms of cancelation, since it has an
intermediate state where we've removed the file descriptor but hasn't
closed the file yet. For that reason, it's currently marked with
IO_WQ_WORK_NO_CANCEL to prevent cancelation. This ensures that the op
is always run even if canceled, to prevent leaving us with a live file
but an fd that is gone. However, with SQPOLL, since a cancel request
doesn't carry any resources on behalf of the request being canceled, if
we cancel before any of the close op has been run, we can end up with
io-wq not having the ->files assigned. This can result in the following
oops reported by Joseph:

BUG: kernel NULL pointer dereference, address: 00000000000000d8
PGD 800000010b76f067 P4D 800000010b76f067 PUD 10b462067 PMD 0
Oops: 0000 [#1] SMP PTI
CPU: 1 PID: 1788 Comm: io_uring-sq Not tainted 5.11.0-rc4 #1
Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
RIP: 0010:__lock_acquire+0x19d/0x18c0
Code: 00 00 8b 1d fd 56 dd 08 85 db 0f 85 43 05 00 00 48 c7 c6 98 7b 95 82 48 c7 c7 57 96 93 82 e8 9a bc f5 ff 0f 0b e9 2b 05 00 00 <48> 81 3f c0 ca 67 8a b8 00 00 00 00 41 0f 45 c0 89 04 24 e9 81 fe
RSP: 0018:ffffc90001933828 EFLAGS: 00010002
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000d8
RBP: 0000000000000246 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffff888106e8a140 R15: 00000000000000d8
FS:  0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000d8 CR3: 0000000106efa004 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lock_acquire+0x31a/0x440
 ? close_fd_get_file+0x39/0x160
 ? __lock_acquire+0x647/0x18c0
 _raw_spin_lock+0x2c/0x40
 ? close_fd_get_file+0x39/0x160
 close_fd_get_file+0x39/0x160
 io_issue_sqe+0x1334/0x14e0
 ? lock_acquire+0x31a/0x440
 ? __io_free_req+0xcf/0x2e0
 ? __io_free_req+0x175/0x2e0
 ? find_held_lock+0x28/0xb0
 ? io_wq_submit_work+0x7f/0x240
 io_wq_submit_work+0x7f/0x240
 io_wq_cancel_cb+0x161/0x580
 ? io_wqe_wake_worker+0x114/0x360
 ? io_uring_get_socket+0x40/0x40
 io_async_find_and_cancel+0x3b/0x140
 io_issue_sqe+0xbe1/0x14e0
 ? __lock_acquire+0x647/0x18c0
 ? __io_queue_sqe+0x10b/0x5f0
 __io_queue_sqe+0x10b/0x5f0
 ? io_req_prep+0xdb/0x1150
 ? mark_held_locks+0x6d/0xb0
 ? mark_held_locks+0x6d/0xb0
 ? io_queue_sqe+0x235/0x4b0
 io_queue_sqe+0x235/0x4b0
 io_submit_sqes+0xd7e/0x12a0
 ? _raw_spin_unlock_irq+0x24/0x30
 ? io_sq_thread+0x3ae/0x940
 io_sq_thread+0x207/0x940
 ? do_wait_intr_irq+0xc0/0xc0
 ? __ia32_sys_io_uring_enter+0x650/0x650
 kthread+0x134/0x180
 ? kthread_create_worker_on_cpu+0x90/0x90
 ret_from_fork+0x1f/0x30

Fix this by moving the IO_WQ_WORK_NO_CANCEL until _after_ we've modified
the fdtable. Canceling before this point is totally fine, and running
it in the io-wq context _after_ that point is also fine.

For 5.12, we'll handle this internally and get rid of the no-cancel
flag, as IORING_OP_CLOSE is the only user of it.

Cc: stable@vger.kernel.org
Fixes: b5dba59e0c ("io_uring: add support for IORING_OP_CLOSE")
Reported-by: "Abaci <abaci@linux.alibaba.com>"
Reviewed-and-tested-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-01-22 12:42:54 -07:00
Qais Yousef
75bd4bff30 arm64: kprobes: Fix Uexpected kernel BRK exception at EL1
I was hitting the below panic continuously when attaching kprobes to
scheduler functions

	[  159.045212] Unexpected kernel BRK exception at EL1
	[  159.053753] Internal error: BRK handler: f2000006 [#1] PREEMPT SMP
	[  159.059954] Modules linked in:
	[  159.063025] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 5.11.0-rc4-00008-g1e2a199f6ccd #56
	[rt-app] <notice> [1] Exiting.[  159.071166] Hardware name: ARM Juno development board (r2) (DT)
	[  159.079689] pstate: 600003c5 (nZCv DAIF -PAN -UAO -TCO BTYPE=--)

	[  159.085723] pc : 0xffff80001624501c
	[  159.089377] lr : attach_entity_load_avg+0x2ac/0x350
	[  159.094271] sp : ffff80001622b640
	[rt-app] <notice> [0] Exiting.[  159.097591] x29: ffff80001622b640 x28: 0000000000000001
	[  159.105515] x27: 0000000000000049 x26: ffff000800b79980

	[  159.110847] x25: ffff00097ef37840 x24: 0000000000000000
	[  159.116331] x23: 00000024eacec1ec x22: ffff00097ef12b90
	[  159.121663] x21: ffff00097ef37700 x20: ffff800010119170
	[rt-app] <notice> [11] Exiting.[  159.126995] x19: ffff00097ef37840 x18: 000000000000000e
	[  159.135003] x17: 0000000000000001 x16: 0000000000000019
	[  159.140335] x15: 0000000000000000 x14: 0000000000000000
	[  159.145666] x13: 0000000000000002 x12: 0000000000000002
	[  159.150996] x11: ffff80001592f9f0 x10: 0000000000000060
	[  159.156327] x9 : ffff8000100f6f9c x8 : be618290de0999a1
	[  159.161659] x7 : ffff80096a4b1000 x6 : 0000000000000000
	[  159.166990] x5 : ffff00097ef37840 x4 : 0000000000000000
	[  159.172321] x3 : ffff000800328948 x2 : 0000000000000000
	[  159.177652] x1 : 0000002507d52fec x0 : ffff00097ef12b90
	[  159.182983] Call trace:
	[  159.185433]  0xffff80001624501c
	[  159.188581]  update_load_avg+0x2d0/0x778
	[  159.192516]  enqueue_task_fair+0x134/0xe20
	[  159.196625]  enqueue_task+0x4c/0x2c8
	[  159.200211]  ttwu_do_activate+0x70/0x138
	[  159.204147]  sched_ttwu_pending+0xbc/0x160
	[  159.208253]  flush_smp_call_function_queue+0x16c/0x320
	[  159.213408]  generic_smp_call_function_single_interrupt+0x1c/0x28
	[  159.219521]  ipi_handler+0x1e8/0x3c8
	[  159.223106]  handle_percpu_devid_irq+0xd8/0x460
	[  159.227650]  generic_handle_irq+0x38/0x50
	[  159.231672]  __handle_domain_irq+0x6c/0xc8
	[  159.235781]  gic_handle_irq+0xcc/0xf0
	[  159.239452]  el1_irq+0xb4/0x180
	[  159.242600]  rcu_is_watching+0x28/0x70
	[  159.246359]  rcu_read_lock_held_common+0x44/0x88
	[  159.250991]  rcu_read_lock_any_held+0x30/0xc0
	[  159.255360]  kretprobe_dispatcher+0xc4/0xf0
	[  159.259555]  __kretprobe_trampoline_handler+0xc0/0x150
	[  159.264710]  trampoline_probe_handler+0x38/0x58
	[  159.269255]  kretprobe_trampoline+0x70/0xc4
	[  159.273450]  run_rebalance_domains+0x54/0x80
	[  159.277734]  __do_softirq+0x164/0x684
	[  159.281406]  irq_exit+0x198/0x1b8
	[  159.284731]  __handle_domain_irq+0x70/0xc8
	[  159.288840]  gic_handle_irq+0xb0/0xf0
	[  159.292510]  el1_irq+0xb4/0x180
	[  159.295658]  arch_cpu_idle+0x18/0x28
	[  159.299245]  default_idle_call+0x9c/0x3e8
	[  159.303265]  do_idle+0x25c/0x2a8
	[  159.306502]  cpu_startup_entry+0x2c/0x78
	[  159.310436]  secondary_start_kernel+0x160/0x198
	[  159.314984] Code: d42000c0 aa1e03e9 d42000c0 aa1e03e9 (d42000c0)

After a bit of head scratching and debugging it turned out that it is
due to kprobe handler being interrupted by a tick that causes us to go
into (I think another) kprobe handler.

The culprit was kprobe_breakpoint_ss_handler() returning DBG_HOOK_ERROR
which leads to the Unexpected kernel BRK exception.

Reverting commit ba090f9caf ("arm64: kprobes: Remove redundant
kprobe_step_ctx") seemed to fix the problem for me.

Further analysis showed that kcb->kprobe_status is set to
KPROBE_REENTER when the error occurs. By teaching
kprobe_breakpoint_ss_handler() to handle this status I can no  longer
reproduce the problem.

Fixes: ba090f9caf ("arm64: kprobes: Remove redundant kprobe_step_ctx")
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lore.kernel.org/r/20210122110909.3324607-1-qais.yousef@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-01-22 16:05:29 +00:00
Peter Zijlstra
741ba80f6f sched: Relax the set_cpus_allowed_ptr() semantics
Now that we have KTHREAD_IS_PER_CPU to denote the critical per-cpu
tasks to retain during CPU offline, we can relax the warning in
set_cpus_allowed_ptr(). Any spurious kthread that wants to get on at
the last minute will get pushed off before it can run.

While during CPU online there is no harm, and actual benefit, to
allowing kthreads back on early, it simplifies hotplug code and fixes
a number of outstanding races.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Lai jiangshan <jiangshanlai@gmail.com>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210121103507.240724591@infradead.org
2021-01-22 15:09:44 +01:00
Peter Zijlstra
5ba2ffba13 sched: Fix CPU hotplug / tighten is_per_cpu_kthread()
Prior to commit 1cf12e08bc ("sched/hotplug: Consolidate task
migration on CPU unplug") we'd leave any task on the dying CPU and
break affinity and force them off at the very end.

This scheme had to change in order to enable migrate_disable(). One
cannot wait for migrate_disable() to complete while stuck in
stop_machine(). Furthermore, since we need at the very least: idle,
hotplug and stop threads at any point before stop_machine, we can't
break affinity and/or push those away.

Under the assumption that all per-cpu kthreads are sanely handled by
CPU hotplug, the new code no long breaks affinity or migrates any of
them (which then includes the critical ones above).

However, there's an important difference between per-cpu kthreads and
kthreads that happen to have a single CPU affinity which is lost. The
latter class very much relies on the forced affinity breaking and
migration semantics previously provided.

Use the new kthread_is_per_cpu() infrastructure to tighten
is_per_cpu_kthread() and fix the hot-unplug problems stemming from the
change.

Fixes: 1cf12e08bc ("sched/hotplug: Consolidate task migration on CPU unplug")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210121103507.102416009@infradead.org
2021-01-22 15:09:44 +01:00
Peter Zijlstra
975707f227 sched: Prepare to use balance_push in ttwu()
In preparation of using the balance_push state in ttwu() we need it to
provide a reliable and consistent state.

The immediate problem is that rq->balance_callback gets cleared every
schedule() and then re-set in the balance_push_callback() itself. This
is not a reliable signal, so add a variable that stays set during the
entire time.

Also move setting it before the synchronize_rcu() in
sched_cpu_deactivate(), such that we get guaranteed visibility to
ttwu(), which is a preempt-disable region.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210121103506.966069627@infradead.org
2021-01-22 15:09:43 +01:00
Peter Zijlstra
640f17c824 workqueue: Restrict affinity change to rescuer
create_worker() will already set the right affinity using
kthread_bind_mask(), this means only the rescuer will need to change
it's affinity.

Howveer, while in cpu-hot-unplug a regular task is not allowed to run
on online&&!active as it would be pushed away quite agressively. We
need KTHREAD_IS_PER_CPU to survive in that environment.

Therefore set the affinity after getting that magic flag.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210121103506.826629830@infradead.org
2021-01-22 15:09:43 +01:00
Peter Zijlstra
5c25b5ff89 workqueue: Tag bound workers with KTHREAD_IS_PER_CPU
Mark the per-cpu workqueue workers as KTHREAD_IS_PER_CPU.

Workqueues have unfortunate semantics in that per-cpu workers are not
default flushed and parked during hotplug, however a subset does
manual flush on hotplug and hard relies on them for correctness.

Therefore play silly games..

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210121103506.693465814@infradead.org
2021-01-22 15:09:42 +01:00
Peter Zijlstra
ac687e6e8c kthread: Extract KTHREAD_IS_PER_CPU
There is a need to distinguish geniune per-cpu kthreads from kthreads
that happen to have a single CPU affinity.

Geniune per-cpu kthreads are kthreads that are CPU affine for
correctness, these will obviously have PF_KTHREAD set, but must also
have PF_NO_SETAFFINITY set, lest userspace modify their affinity and
ruins things.

However, these two things are not sufficient, PF_NO_SETAFFINITY is
also set on other tasks that have their affinities controlled through
other means, like for instance workqueues.

Therefore another bit is needed; it turns out kthread_create_per_cpu()
already has such a bit: KTHREAD_IS_PER_CPU, which is used to make
kthread_park()/kthread_unpark() work correctly.

Expose this flag and remove the implicit setting of it from
kthread_create_on_cpu(); the io_uring usage of it seems dubious at
best.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210121103506.557620262@infradead.org
2021-01-22 15:09:42 +01:00
Peter Zijlstra
22f667c97a sched: Don't run cpu-online with balance_push() enabled
We don't need to push away tasks when we come online, mark the push
complete right before the CPU dies.

XXX hotplug state machine has trouble with rollback here.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210121103506.415606087@infradead.org
2021-01-22 15:09:42 +01:00
Lai Jiangshan
547a77d02f workqueue: Use cpu_possible_mask instead of cpu_active_mask to break affinity
The scheduler won't break affinity for us any more, and we should
"emulate" the same behavior when the scheduler breaks affinity for
us.  The behavior is "changing the cpumask to cpu_possible_mask".

And there might be some other CPUs online later while the worker is
still running with the pending work items.  The worker should be allowed
to use the later online CPUs as before and process the work items ASAP.
If we use cpu_active_mask here, we can't achieve this goal but
using cpu_possible_mask can.

Fixes: 06249738a4 ("workqueue: Manually break affinity on hotplug")
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Acked-by: Tejun Heo <tj@kernel.org>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210111152638.2417-4-jiangshanlai@gmail.com
2021-01-22 15:09:41 +01:00
Valentin Schneider
36c6e17bf1 sched/core: Print out straggler tasks in sched_cpu_dying()
Since commit

  1cf12e08bc ("sched/hotplug: Consolidate task migration on CPU unplug")

tasks are expected to move themselves out of a out-going CPU. For most
tasks this will be done automagically via BALANCE_PUSH, but percpu kthreads
will have to cooperate and move themselves away one way or another.

Currently, some percpu kthreads (workqueues being a notable exemple) do not
cooperate nicely and can end up on an out-going CPU at the time
sched_cpu_dying() is invoked.

Print the dying rq's tasks to shed some light on the stragglers.

Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210113183141.11974-1-valentin.schneider@arm.com
2021-01-22 15:09:41 +01:00
Greg Kroah-Hartman
8598bb4c87 First set of IIO new device support, cleanups etc for 5.12
Includes one immutable branch, to support some qcom-vadc patches
 going through IIO and thermal.
 
 Late rebase to drop a patch that should go through the hid tree.
 
 New device support:
 * adi,ad5766
   - New driver supporting AD5766 and AD5767 16 channel DACs.
 * adi,ad7476
   - Support for LTC2314-14 14 bit ADC (trivial to add)
 * hid-sensors-hinge
   - New driver including HID custom sensor support.
 * invensense,mpu6050
   - Add support for the MPU-6880 (chip info all that is needed)
 * memsic,ms5637
   - Add support for ms5803 device after a bunch of rework.
 * xilinx-xadc
   - Add support for Ultrascale System Monitor.
 * yamaha,yas530
   - New driver for this magnetometer supporting YAS530, YAS532 adn YAS 533.
 
 Dt-binding conversions to yaml
 * invensense,mpu3050
 * invensense,mpu6050
 
 Cleanups and minor features
 * core
   - Copy iio_info.attrs->is_visible along with the attrs themselves.
   - Handle enumerate properties with gaps (i.e. reserved values in
     the middle of otherwise used values).
   - Add an of_iio_channel_get_by_name() function.
 * adi,adf4350
   - Drop an unnecessary NULL check.
 * amstaos,tsl2583
   - Use DIV_ROUND_CLOSEST in place of open coding.
 * avago,apds9960
   - Add MSHW0184 ACPI id seen in the Microsoft Surface Book 3 and Surface
     Pro 7.
 * bosch,bmc150_magn
   - Basic regulator support.
 * bosch,bme680
   - Use DIV_ROUND_CLOSEST in place of opencoding.
 * bosch,bmg160
   - Basic regulator support.
 * hid-sensors
   - Add timestamp channels to all sensors types.
 * kionix,kxcjk1013
   - Basic regulator support.
 * memsic
   - Fix ordering in trivial-device.yaml
 * microchip,mcp4725
   - More flexible restrictions in DT binding.
 * plantower,pms7003
   - Fix comma that should be semicolon.
 * qcom-vadc
   - Refactors to support addition of ADC-TM5 driver
   - Addition of a fixp_linear_interpolate function to support this common
     operation.
 * sprd,sc27xx_adc
   - Use DIV_ROUND_CLOSEST in place of opencoding.
 * st,ab8500-adc
   - Enable non-hw-conversion as AB505 doesn't support it.
 * st,stm32-adc
   - Drop unneeded NULL check.
 * st,stm32-dfsdm
   - Drop unneeded NULL check.
 * st,vl6180
   - Use DIV_ROUND_CLOSEST in place of opencoding.
 * xilinx-xadc
   - Local var for &pdev->dev to avoid excessive repetition.
   - devm_ throughout and drop remove()
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEEbilms4eEBlKRJoGxVIU0mcT0FogFAmAKlDkRHGppYzIzQGtl
 cm5lbC5vcmcACgkQVIU0mcT0FohMrw/+POQpOgJ1ZEEZpIXFxtYnOC8QAPQk6SFf
 syt+m+THauWQ6tcL2GRaE4QDvcBqWvGV+YKK0S9TaQ+L+4R2Lp/6XJ9Gp+EeB2z+
 tnggshWbox4expvnSmKEFysLoiYQ5xmCf+EsGNs8UdVVCYpK4jdut914ev4ZqaGY
 zy1aopGh0XHHtrrGzqhE6q+p5FG11Iewi3iuvq11jK5DrmwddyhempUqkGPGow/1
 JIgVDgGOHXka85L7z8uJ/6JQtVRUTyUehb8fXLEDH7htSHCt8B62OwN/rwPIRXRY
 JElbwetptpM753UUS0qoMGyqcEEoOI2Cr5BEJVfOfpWH2O/lVcF+XlbCiD3wQT48
 1DjHfts0jO8X/O+C4ZbglfGM/AZ2fRmZLFy7mObK+CixFwH5wXv0zhVsHNzK4Vzu
 e0fHbMtGgK8W0Gp9kQL0Ki+SJkpnI6Ilujl0jOrmGenmW4t1i6k51okGDpVJ8azd
 wUHh0gvLEK0T1d2Cq8GdU+pUGyxNqu3bOSXLrMjJ+f+UFYHDcFWxWLD1p8YG6h0f
 cS40NtDfCQOWTy476Kg/jXAG4yQrEKz0dm6m4PoqB1WKZPLrMzgCapPLJVLdU71c
 Y+kH2MHHbwHrRGqcn0FE9kTJO3RaWax10QcMgn3ZWTMqOIgpW4zRpr1rSREdLiND
 buScx7gBKPY=
 =GLx1
 -----END PGP SIGNATURE-----

Merge tag 'iio-for-5.12a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First set of IIO new device support, cleanups etc for 5.12

Includes one immutable branch, to support some qcom-vadc patches
going through IIO and thermal.

Late rebase to drop a patch that should go through the hid tree.

New device support:
* adi,ad5766
  - New driver supporting AD5766 and AD5767 16 channel DACs.
* adi,ad7476
  - Support for LTC2314-14 14 bit ADC (trivial to add)
* hid-sensors-hinge
  - New driver including HID custom sensor support.
* invensense,mpu6050
  - Add support for the MPU-6880 (chip info all that is needed)
* memsic,ms5637
  - Add support for ms5803 device after a bunch of rework.
* xilinx-xadc
  - Add support for Ultrascale System Monitor.
* yamaha,yas530
  - New driver for this magnetometer supporting YAS530, YAS532 adn YAS 533.

Dt-binding conversions to yaml
* invensense,mpu3050
* invensense,mpu6050

Cleanups and minor features
* core
  - Copy iio_info.attrs->is_visible along with the attrs themselves.
  - Handle enumerate properties with gaps (i.e. reserved values in
    the middle of otherwise used values).
  - Add an of_iio_channel_get_by_name() function.
* adi,adf4350
  - Drop an unnecessary NULL check.
* amstaos,tsl2583
  - Use DIV_ROUND_CLOSEST in place of open coding.
* avago,apds9960
  - Add MSHW0184 ACPI id seen in the Microsoft Surface Book 3 and Surface
    Pro 7.
* bosch,bmc150_magn
  - Basic regulator support.
* bosch,bme680
  - Use DIV_ROUND_CLOSEST in place of opencoding.
* bosch,bmg160
  - Basic regulator support.
* hid-sensors
  - Add timestamp channels to all sensors types.
* kionix,kxcjk1013
  - Basic regulator support.
* memsic
  - Fix ordering in trivial-device.yaml
* microchip,mcp4725
  - More flexible restrictions in DT binding.
* plantower,pms7003
  - Fix comma that should be semicolon.
* qcom-vadc
  - Refactors to support addition of ADC-TM5 driver
  - Addition of a fixp_linear_interpolate function to support this common
    operation.
* sprd,sc27xx_adc
  - Use DIV_ROUND_CLOSEST in place of opencoding.
* st,ab8500-adc
  - Enable non-hw-conversion as AB505 doesn't support it.
* st,stm32-adc
  - Drop unneeded NULL check.
* st,stm32-dfsdm
  - Drop unneeded NULL check.
* st,vl6180
  - Use DIV_ROUND_CLOSEST in place of opencoding.
* xilinx-xadc
  - Local var for &pdev->dev to avoid excessive repetition.
  - devm_ throughout and drop remove()

* tag 'iio-for-5.12a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (59 commits)
  iio: adc: stm32-dfsdm: Remove redundant null check before clk_disable_unprepare
  iio:pressure:ms5637: add ms5803 support
  iio:common:ms_sensors:ms_sensors_i2c: add support for alternative PROM layout
  iio:common:ms_sensors:ms_sensors_i2c: rework CRC calculation helper
  iio:pressure:ms5637: limit available sample frequencies
  iio:pressure:ms5637: introduce hardware differentiation
  dt-bindings: trivial-devices: reorder memsic devices
  iio: dac: ad5766: add driver support for AD5766
  Documentation/ABI/testing: Add documentation for AD5766 new ABI
  dt-bindings: iio: dac: AD5766 yaml documentation
  iio: hid-sensor-rotation: Add timestamp channel
  iio: hid-sensor-incl-3d: Add timestamp channel
  iio: hid-sensor-magn-3d: Add timestamp channel
  iio: hid-sensor-als: Add timestamp channel
  iio: hid-sensor-gyro-3d: Add timestamp channel
  iio: hid-sensor-accel-3d: Add timestamp channel for gravity sensor
  iio: magnetometer: bmc150: Add rudimentary regulator support
  dt-bindings: iio: magnetometer: bmc150: Document regulator supplies
  iio: Handle enumerated properties with gaps
  iio:Documentation: Add documentation for hinge sensor channels
  ...
2021-01-22 11:07:30 +01:00
Ricky Wu
31b081066e misc: rtsx: init value of aspm_enabled
make sure ASPM state sync with pcr->aspm_enabled
init value pcr->aspm_enabled

Cc: stable@vger.kernel.org
Signed-off-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20210122081906.19100-1-ricky_wu@realtek.com
Fixes: d928061c31 ("misc: rtsx: modify en/disable aspm function")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-22 11:04:53 +01:00
Linus Torvalds
17749851eb tty: fix up hung_up_tty_write() conversion
In commit "tty: implement write_iter", I left the write_iter conversion
of the hung up tty case alone, because I incorrectly thought it didn't
matter.

Jiri showed me the errors of my ways, and pointed out the problems with
that incomplete conversion.  Fix it all up.

Reported-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/CAHk-=wh+-rGsa=xruEWdg_fJViFG8rN9bpLrfLz=_yBYh2tBhA@mail.gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-22 11:01:55 +01:00
Krzysztof Kozlowski
9ecd1d2b30 i2c: sprd: depend on COMMON_CLK to fix compile tests
The I2C_SPRD uses Common Clock Framework thus it cannot be built on
platforms without it (e.g. compile test on MIPS with LANTIQ):

    /usr/bin/mips-linux-gnu-ld: drivers/i2c/busses/i2c-sprd.o: in function `sprd_i2c_probe':
    i2c-sprd.c:(.text.sprd_i2c_probe+0x254): undefined reference to `clk_set_parent'

Fixes: 4a2d5f663d ("i2c: Enable compile testing for more drivers")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Baolin Wang <baolin.wang7@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2021-01-22 10:13:33 +01:00
Jonathan Cameron
1994a922eb Merge branch 'ib-iio-thermal-5.11-rc1' into togreg
Immutable branch to allow for additional patches to thermal that may
be applied in this cycle.
2021-01-22 08:52:26 +00:00
Xu Wang
aa15e68409 iio: adc: stm32-dfsdm: Remove redundant null check before clk_disable_unprepare
ecause clk_disable_unprepare() already checked NULL clock parameter,
so the additional check is unnecessary, just remove it.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Link: https://lore.kernel.org/r/20201231085322.24398-1-vulab@iscas.ac.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:07 +00:00
Alexandre Belloni
649ef114a0 iio:pressure:ms5637: add ms5803 support
The ms5803 is very similar to the ms5805 but has less resolution options
and has the 128bit PROM layout.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210109231148.1168104-7-alexandre.belloni@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:07 +00:00
Alexandre Belloni
9ea7c79097 iio:common:ms_sensors:ms_sensors_i2c: add support for alternative PROM layout
Currently, only the 112bit PROM with 7 words is supported. However the ms58xx
family also have devices with a 128bit PROM on 8 words. See AN520:
C-CODE EXAMPLE FOR MS56XX, MS57XX (EXCEPT ANALOG SENSOR), AND MS58XX SERIES
PRESSURE SENSORS and the various device datasheets.

The difference is that the CRC is the 4 LSBs of word7 instead of being the
4 MSBs of word0.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210109231148.1168104-6-alexandre.belloni@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:07 +00:00
Alexandre Belloni
7ae7f75080 iio:common:ms_sensors:ms_sensors_i2c: rework CRC calculation helper
The CRC calculation always happens on 8 words which is why there is an
extra element in the prom array of struct ms_tp_dev. However, on ms5637 and
similar, only 7 words are readable.

Then, set MS_SENSORS_TP_PROM_WORDS_NB to 8 and stop passing a len parameter
to ms_sensors_tp_crc_valid as this simply hide the fact that it is
hardcoded.

Finally, use the newly introduced hw->prom_len to know how many words can be
read.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210109231148.1168104-5-alexandre.belloni@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:06 +00:00
Alexandre Belloni
07498719be iio:pressure:ms5637: limit available sample frequencies
Avoid exposing all the sampling frequencies for chip that only support a
subset.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210109231148.1168104-4-alexandre.belloni@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:06 +00:00
Alexandre Belloni
8c125f5f32 iio:pressure:ms5637: introduce hardware differentiation
Some sensors in the ms58xx family have a different PROM length and a
different number of available resolution. introduce struct ms_tp_hw_data to
handle those differences.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210109231148.1168104-3-alexandre.belloni@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:06 +00:00
Alexandre Belloni
d1004b707d dt-bindings: trivial-devices: reorder memsic devices
Reorder memsic compatible strings alphabetically

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210109231148.1168104-2-alexandre.belloni@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:06 +00:00
Cristian Pop
fd9373e41b iio: dac: ad5766: add driver support for AD5766
The AD5766/AD5767 are 16-channel, 16-bit/12-bit, voltage output dense DACs
Digital-to-Analog converters.

This change adds support for these DACs.

Signed-off-by: Cristian Pop <cristian.pop@analog.com>
Link: https://lore.kernel.org/r/20210115112105.58652-3-cristian.pop@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:05 +00:00
Cristian Pop
b1a1fd93e1 Documentation/ABI/testing: Add documentation for AD5766 new ABI
New interface is proposed for dither functionality. This future allows
composing  an external signals to the selected output channel.
The dither signal can be turned on/off, scaled, inverted, or it can be
selected from different sources.

Signed-off-by: Cristian Pop <cristian.pop@analog.com>
Link: https://lore.kernel.org/r/20210115112105.58652-2-cristian.pop@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:05 +00:00
Cristian Pop
e904cc8992 dt-bindings: iio: dac: AD5766 yaml documentation
This adds device tree bindings for the AD5766 DAC.

Signed-off-by: Cristian Pop <cristian.pop@analog.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210115112105.58652-1-cristian.pop@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:05 +00:00
Ye Xiang
4a3582c84a iio: hid-sensor-rotation: Add timestamp channel
Each sample has a timestamp field with this change. This timestamp may
be from the sensor hub when present or local kernel timestamp. And the
unit of timestamp is nanosecond.

Signed-off-by: Ye Xiang <xiang.ye@intel.com>
Link: https://lore.kernel.org/r/20210105093515.19135-7-xiang.ye@intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:05 +00:00
Ye Xiang
04fe70d1b8 iio: hid-sensor-incl-3d: Add timestamp channel
Each sample has a timestamp field with this change. This timestamp may
be from the sensor hub when present or local kernel timestamp. And the
unit of timestamp is nanosecond.

Signed-off-by: Ye Xiang <xiang.ye@intel.com>
Link: https://lore.kernel.org/r/20210105093515.19135-6-xiang.ye@intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:04 +00:00
Ye Xiang
a6bea3d5fe iio: hid-sensor-magn-3d: Add timestamp channel
Each sample has a timestamp field with this change. This timestamp may
be from the sensor hub when present or local kernel timestamp. And the
unit of timestamp is nanosecond.

Signed-off-by: Ye Xiang <xiang.ye@intel.com>
Link: https://lore.kernel.org/r/20210105093515.19135-5-xiang.ye@intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:04 +00:00
Ye Xiang
314f7cad1a iio: hid-sensor-als: Add timestamp channel
Each sample has a timestamp field with this change. This timestamp may
be from the sensor hub when present or local kernel timestamp. And the
unit of timestamp is nanosecond.

Signed-off-by: Ye Xiang <xiang.ye@intel.com>
Link: https://lore.kernel.org/r/20210105093515.19135-4-xiang.ye@intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:04 +00:00
Ye Xiang
4648cbd8fb iio: hid-sensor-gyro-3d: Add timestamp channel
Each sample has a timestamp field with this change. This timestamp may
be from the sensor hub when present or local kernel timestamp. And the
unit of timestamp is nanosecond.

Signed-off-by: Ye Xiang <xiang.ye@intel.com>
Link: https://lore.kernel.org/r/20210105093515.19135-3-xiang.ye@intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:04 +00:00
Ye Xiang
4c2617207e iio: hid-sensor-accel-3d: Add timestamp channel for gravity sensor
The accel_3d sensor already has a timestamp channel, this patch just
replicate that for gravity sensor.

Signed-off-by: Ye Xiang <xiang.ye@intel.com>
Link: https://lore.kernel.org/r/20210105093515.19135-2-xiang.ye@intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:03 +00:00
Stephan Gerhold
cce4f160ea iio: magnetometer: bmc150: Add rudimentary regulator support
BMC150 needs VDD and VDDIO regulators that might need to be explicitly
enabled. Add some rudimentary support to obtain and enable these
regulators during probe() and disable them during remove()
or on the error path.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210109152327.512538-2-stephan@gerhold.net
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:03 +00:00
Stephan Gerhold
111a10d499 dt-bindings: iio: magnetometer: bmc150: Document regulator supplies
BMC150 needs VDD and VDDIO regulators that might need to be explicitly
enabled. Document support for vdd/vddio-supply to implement this.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210109152327.512538-1-stephan@gerhold.net
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:03 +00:00
Lars-Peter Clausen
d9a0e73c0c iio: Handle enumerated properties with gaps
Some enums might have gaps or reserved values in the middle of their value
range. E.g. consider a 2-bit enum where the values 0, 1 and 3 have a
meaning, but 2 is a reserved value and can not be used.

Add support for such enums to the IIO enum helper functions. A reserved
values is marked by setting its entry in the items array to NULL rather
than the normal descriptive string value.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210107112049.10815-1-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:03 +00:00
Ye Xiang
3cc718bc79 iio:Documentation: Add documentation for hinge sensor channels
Add channel description for hinge sensor, including channel label
attribute and raw data description.

Signed-off-by: Ye Xiang <xiang.ye@intel.com>
Link: https://lore.kernel.org/r/20201215054444.9324-4-xiang.ye@intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:02 +00:00
Ye Xiang
660987e125 iio: hid-sensors: Add hinge sensor driver
The Hinge sensor is a common custom sensor on laptops. It calculates
the angle between the lid (screen) and the base (keyboard). In addition,
it also exposes screen and the keyboard angles with respect to the
ground. Applications can easily get laptop's status in space through
this sensor, in order to display appropriate user interface.

Signed-off-by: Ye Xiang <xiang.ye@intel.com>
Link: https://lore.kernel.org/r/20201215054444.9324-3-xiang.ye@intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:02 +00:00