korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-16 15:34:48 +08:00
Code Issues Packages Projects Releases Wiki Activity
1,185,145 Commits 113 Branches 5,294 Tags 3.6 GiB
a511637502
Commit Graph

1185145 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
Sen Chu
a511637502
regulator: mt6359: add read check for PMIC MT6359 
Add hardware version read check for PMIC MT6359

Signed-off-by: Sen Chu <sen.chu@mediatek.com
Fixes: 4cfc965475 ("regulator: mt6359: Add support for MT6359P regulator")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com
Link: https://lore.kernel.org/r/20230518040646.8730-1-sen.chu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org
 2023-05-18 19:24:47 +09:00
Osama Muhammad
2bf1c45be3
regulator: Fix error checking for debugfs_create_dir 
This patch fixes the error checking in core.c in debugfs_create_dir.
The correct way to check if an error occurred is 'IS_ERR' inline function.

Signed-off-by: Osama Muhammad <osmtendev@gmail.com
Suggested-by: Ivan Orlov <ivan.orlov0322@gmail.com
Link: https://lore.kernel.org/r/20230515172938.13338-1-osmtendev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org
 2023-05-16 10:15:00 +09:00
Alexander Stein
d67dada3e2
regulator: pca9450: Fix BUCK2 enable_mask 
This fixes a copy & paste error.
No functional change intended, BUCK1_ENMODE_MASK equals BUCK2_ENMODE_MASK.

Fixes: 0935ff5f1f ("regulator: pca9450: add pca9450 pmic driver")
Originally-from: Robin Gong <yibin.gong@nxp.com
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de
Link: https://lore.kernel.org/r/20230512081935.2396180-1-alexander.stein@ew.tq-group.com
Signed-off-by: Mark Brown <broonie@kernel.org
 2023-05-15 10:21:34 +09:00
Linus Torvalds
ac9a78681b Linux 6.4-rc1 2023-05-07 13:34:35 -07:00
Linus Torvalds
f085df1be6 Disable building BPF based features by default for v6.4. 
We need to better polish building with BPF skels, so revert back to
 making it an experimental feature that has to be explicitely enabled
 using BUILD_BPF_SKEL=1.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCZFbCXwAKCRCyPKLppCJ+
 J7cHAP97erKY4hBXArjpfzcvpFmboh/oqhbTLntyIpS6TEnOyQEAyervAPGIjQYC
 DCo4foyXmOWn3dhNtK9M+YiRl3o2SgQ=
 =7G78
 -----END PGP SIGNATURE-----

Merge tag 'perf-tools-for-v6.4-3-2023-05-06' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tool updates from Arnaldo Carvalho de Melo:
 "Third version of perf tool updates, with the build problems with with
  using a 'vmlinux.h' generated from the main build fixed, and the bpf
  skeleton build disabled by default.

  Build:

   - Require libtraceevent to build, one can disable it using
     NO_LIBTRACEEVENT=1.

     It is required for tools like 'perf sched', 'perf kvm', 'perf
     trace', etc.

     libtraceevent is available in most distros so installing
     'libtraceevent-devel' should be a one-time event to continue
     building perf as usual.

     Using NO_LIBTRACEEVENT=1 produces tooling that is functional and
     sufficient for lots of users not interested in those libtraceevent
     dependent features.

   - Allow Python support in 'perf script' when libtraceevent isn't
     linked, as not all features requires it, for instance Intel PT does
     not use tracepoints.

   - Error if the python interpreter needed for jevents to work isn't
     available and NO_JEVENTS=1 isn't set, preventing a build without
     support for JSON vendor events, which is a rare but possible
     condition. The two check error messages:

        $(error ERROR: No python interpreter needed for jevents generation. Install python or build with NO_JEVENTS=1.)
        $(error ERROR: Python interpreter needed for jevents generation too old (older than 3.6). Install a newer python or build with NO_JEVENTS=1.)

   - Make libbpf 1.0 the minimum required when building with out of
     tree, distro provided libbpf.

   - Use libsdtc++'s and LLVM's libcxx's __cxa_demangle, a portable C++
     demangler, add 'perf test' entry for it.

   - Make binutils libraries opt in, as distros disable building with it
     due to licensing, they were used for C++ demangling, for instance.

   - Switch libpfm4 to opt-out rather than opt-in, if libpfm-devel (or
     equivalent) isn't installed, we'll just have a build warning:

       Makefile.config:1144: libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev

   - Add a feature test for scandirat(), that is not implemented so far
     in musl and uclibc, disabling features that need it, such as
     scanning for tracepoints in /sys/kernel/tracing/events.

  perf BPF filters:

   - New feature where BPF can be used to filter samples, for instance:

      $ sudo ./perf record -e cycles --filter 'period > 1000' true
      $ sudo ./perf script
           perf-exec 2273949 546850.708501:       5029 cycles:  ffffffff826f9e25 finish_wait+0x5 ([kernel.kallsyms])
           perf-exec 2273949 546850.708508:      32409 cycles:  ffffffff826f9e25 finish_wait+0x5 ([kernel.kallsyms])
           perf-exec 2273949 546850.708526:     143369 cycles:  ffffffff82b4cdbf xas_start+0x5f ([kernel.kallsyms])
           perf-exec 2273949 546850.708600:     372650 cycles:  ffffffff8286b8f7 __pagevec_lru_add+0x117 ([kernel.kallsyms])
           perf-exec 2273949 546850.708791:     482953 cycles:  ffffffff829190de __mod_memcg_lruvec_state+0x4e ([kernel.kallsyms])
                true 2273949 546850.709036:     501985 cycles:  ffffffff828add7c tlb_gather_mmu+0x4c ([kernel.kallsyms])
                true 2273949 546850.709292:     503065 cycles:      7f2446d97c03 _dl_map_object_deps+0x973 (/usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2)

   - In addition to 'period' (PERF_SAMPLE_PERIOD), the other
     PERF_SAMPLE_ can be used for filtering, and also some other sample
     accessible values, from tools/perf/Documentation/perf-record.txt:

        Essentially the BPF filter expression is:

        <term> <operator> <value> (("," | "||") <term> <operator> <value>)*

     The <term> can be one of:
        ip, id, tid, pid, cpu, time, addr, period, txn, weight, phys_addr,
        code_pgsz, data_pgsz, weight1, weight2, weight3, ins_lat, retire_lat,
        p_stage_cyc, mem_op, mem_lvl, mem_snoop, mem_remote, mem_lock,
        mem_dtlb, mem_blk, mem_hops

     The <operator> can be one of:
        ==, !=, >, >=, <, <=, &

     The <value> can be one of:
        <number> (for any term)
        na, load, store, pfetch, exec (for mem_op)
        l1, l2, l3, l4, cxl, io, any_cache, lfb, ram, pmem (for mem_lvl)
        na, none, hit, miss, hitm, fwd, peer (for mem_snoop)
        remote (for mem_remote)
        na, locked (for mem_locked)
        na, l1_hit, l1_miss, l2_hit, l2_miss, any_hit, any_miss, walk, fault (for mem_dtlb)
        na, by_data, by_addr (for mem_blk)
        hops0, hops1, hops2, hops3 (for mem_hops)

  perf lock contention:

   - Show lock type with address.

   - Track and show mmap_lock, siglock and per-cpu rq_lock with address.
     This is done for mmap_lock by following the current->mm pointer:

      $ sudo ./perf lock con -abl -- sleep 10
       contended   total wait     max wait     avg wait            address   symbol
       ...
           16344    312.30 ms      2.22 ms     19.11 us   ffff8cc702595640
           17686    310.08 ms      1.49 ms     17.53 us   ffff8cc7025952c0
               3     84.14 ms     45.79 ms     28.05 ms   ffff8cc78114c478   mmap_lock
            3557     76.80 ms     68.75 us     21.59 us   ffff8cc77ca3af58
               1     68.27 ms     68.27 ms     68.27 ms   ffff8cda745dfd70
               9     54.53 ms      7.96 ms      6.06 ms   ffff8cc7642a48b8   mmap_lock
           14629     44.01 ms     60.00 us      3.01 us   ffff8cc7625f9ca0
            3481     42.63 ms    140.71 us     12.24 us   ffffffff937906ac   vmap_area_lock
           16194     38.73 ms     42.15 us      2.39 us   ffff8cd397cbc560
              11     38.44 ms     10.39 ms      3.49 ms   ffff8ccd6d12fbb8   mmap_lock
               1      5.43 ms      5.43 ms      5.43 ms   ffff8cd70018f0d8
            1674      5.38 ms    422.93 us      3.21 us   ffffffff92e06080   tasklist_lock
             581      4.51 ms    130.68 us      7.75 us   ffff8cc9b1259058
               5      3.52 ms      1.27 ms    703.23 us   ffff8cc754510070
             112      3.47 ms     56.47 us     31.02 us   ffff8ccee38b3120
             381      3.31 ms     73.44 us      8.69 us   ffffffff93790690   purge_vmap_area_lock
             255      3.19 ms     36.35 us     12.49 us   ffff8d053ce30c80

   - Update default map size to 16384.

   - Allocate single letter option -M for --map-nr-entries, as it is
     proving being frequently used.

   - Fix struct rq lock access for older kernels with BPF's CO-RE
     (Compile once, run everywhere).

   - Fix problems found with MSAn.

  perf report/top:

   - Add inline information when using --call-graph=fp or lbr, as was
     already done to the --call-graph=dwarf callchain mode.

   - Improve the 'srcfile' sort key performance by really using an
     optimization introduced in 6.2 for the 'srcline' sort key that
     avoids calling addr2line for comparision with each sample.

  perf sched:

   - Make 'perf sched latency/map/replay' to use "sched:sched_waking"
     instead of "sched:sched_waking", consistent with 'perf record'
     since d566a9c2d4 ("perf sched: Prefer sched_waking event when it
     exists").

  perf ftrace:

   - Make system wide the default target for latency subcommand, run the
     following command then generate some network traffic and press
     control+C:

       # perf ftrace latency -T __kfree_skb
     ^C
         DURATION     |      COUNT | GRAPH                                          |
          0 - 1    us |         27 | #############                                  |
          1 - 2    us |         22 | ###########                                    |
          2 - 4    us |          8 | ####                                           |
          4 - 8    us |          5 | ##                                             |
          8 - 16   us |         24 | ############                                   |
         16 - 32   us |          2 | #                                              |
         32 - 64   us |          1 |                                                |
         64 - 128  us |          0 |                                                |
        128 - 256  us |          0 |                                                |
        256 - 512  us |          0 |                                                |
        512 - 1024 us |          0 |                                                |
          1 - 2    ms |          0 |                                                |
          2 - 4    ms |          0 |                                                |
          4 - 8    ms |          0 |                                                |
          8 - 16   ms |          0 |                                                |
         16 - 32   ms |          0 |                                                |
         32 - 64   ms |          0 |                                                |
         64 - 128  ms |          0 |                                                |
        128 - 256  ms |          0 |                                                |
        256 - 512  ms |          0 |                                                |
        512 - 1024 ms |          0 |                                                |
          1 - ...   s |          0 |                                                |
       #

  perf top:

   - Add --branch-history (LBR: Last Branch Record) option, just like
     already available for 'perf record'.

   - Fix segfault in thread__comm_len() where thread->comm was being
     used outside thread->comm_lock.

  perf annotate:

   - Allow configuring objdump and addr2line in ~/.perfconfig., so that
     you can use alternative binaries, such as llvm's.

  perf kvm:

   - Add TUI mode for 'perf kvm stat report'.

  Reference counting:

   - Add reference count checking infrastructure to check for use after
     free, done to the 'cpumap', 'namespaces', 'maps' and 'map' structs,
     more to come.

     To build with it use -DREFCNT_CHECKING=1 in the make command line
     to build tools/perf. Documented at:

       https://perf.wiki.kernel.org/index.php/Reference_Count_Checking

   - The above caught, for instance, fix, present in this series:

        - Fix maps use after put in 'perf test "Share thread maps"':

          'maps' is copied from leader, but the leader is put on line 79
          and then 'maps' is used to read the reference count below - so
          a use after put, with the put of maps happening within
          thread__put.

     Fixed by reversing the order of puts so that the leader is put
     last.

   - Also several fixes were made to places where reference counts were
     not being held.

   - Make this one of the tests in 'make -C tools/perf build-test' to
     regularly build test it and to make sure no direct access to the
     reference counted structs are made, doing that via accessors to
     check the validity of the struct pointer.

  ARM64:

   - Fix 'perf report' segfault when filtering coresight traces by
     sparse lists of CPUs.

   - Add support for 'simd' as a sort field for 'perf report', to show
     ARM's NEON SIMD's predicate flags: "partial" and "empty".

  arm64 vendor events:

   - Add N1 metrics.

  Intel vendor events:

   - Add graniterapids, grandridge and sierraforrest events.

   - Refresh events for: alderlake, aldernaken, broadwell, broadwellde,
     broadwellx, cascadelakx, haswell, haswellx, icelake, icelakex,
     jaketown, meteorlake, knightslanding, sandybridge, sapphirerapids,
     silvermont, skylake, tigerlake and westmereep-dp

   - Refresh metrics for alderlake-n, broadwell, broadwellde,
     broadwellx, haswell, haswellx, icelakex, ivybridge, ivytown and
     skylakex.

  perf stat:

   - Implement --topdown using JSON metrics.

   - Add TopdownL1 JSON metric as a default if present, but disable it
     for now for some Intel hybrid architectures, a series of patches
     addressing this is being reviewed and will be submitted for v6.5.

   - Use metrics for --smi-cost.

   - Update topdown documentation.

  Vendor events (JSON) infrastructure:

   - Add support for computing and printing metric threshold values. For
     instance, here is one found in thesapphirerapids json file:

       {
           "BriefDescription": "Percentage of cycles spent in System Management Interrupts.",
           "MetricExpr": "((msr@aperf@ - cycles) / msr@aperf@ if msr@smi@ > 0 else 0)",
           "MetricGroup": "smi",
           "MetricName": "smi_cycles",
           "MetricThreshold": "smi_cycles > 0.1",
           "ScaleUnit": "100%"
       },

   - Test parsing metric thresholds with the fake PMU in 'perf test
     pmu-events'.

   - Support for printing metric thresholds in 'perf list'.

   - Add --metric-no-threshold option to 'perf stat'.

   - Add rand (reverse and) and has_pmem (optane memory) support to
     metrics.

   - Sort list of input files to avoid depending on the order from
     readdir() helping in obtaining reproducible builds.

  S/390:

   - Add common metrics: - CPI (cycles per instruction), prbstate (ratio
     of instructions executed in problem state compared to total number
     of instructions), l1mp (Level one instruction and data cache misses
     per 100 instructions).

   - Add cache metrics for z13, z14, z15 and z16.

   - Add metric for TLB and cache.

  ARM:

   - Add raw decoding for SPE (Statistical Profiling Extension) v1.3 MTE
     (Memory Tagging Extension) and MOPS (Memory Operations) load/store.

  Intel PT hardware tracing:

   - Add event type names UINTR (User interrupt delivered) and UIRET
     (Exiting from user interrupt routine), documented in table 32-50
     "CFE Packet Type and Vector Fields Details" in the Intel Processor
     Trace chapter of The Intel SDM Volume 3 version 078.

   - Add support for new branch instructions ERETS and ERETU.

   - Fix CYC timestamps after standalone CBR

  ARM CoreSight hardware tracing:

   - Allow user to override timestamp and contextid settings.

   - Fix segfault in dso lookup.

   - Fix timeless decode mode detection.

   - Add separate decode paths for timeless and per-thread modes.

  auxtrace:

   - Fix address filter entire kernel size.

  Miscellaneous:

   - Fix use-after-free and unaligned bugs in the PLT handling routines.

   - Use zfree() to reduce chances of use after free.

   - Add missing 0x prefix for addresses printed in hexadecimal in 'perf
     probe'.

   - Suppress massive unsupported target platform errors in the unwind
     code.

   - Fix return incorrect build_id size in elf_read_build_id().

   - Fix 'perf scripts intel-pt-events.py' IPC output for Python 2 .

   - Add missing new parameter in kfree_skb tracepoint to the python
     scripts using it.

   - Add 'perf bench syscall fork' benchmark.

   - Add support for printing PERF_MEM_LVLNUM_UNC (Uncached access) in
     'perf mem'.

   - Fix wrong size expectation for perf test 'Setup struct
     perf_event_attr' caused by the patch adding
     perf_event_attr::config3.

   - Fix some spelling mistakes"

* tag 'perf-tools-for-v6.4-3-2023-05-06' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (365 commits)
  Revert "perf build: Make BUILD_BPF_SKEL default, rename to NO_BPF_SKEL"
  Revert "perf build: Warn for BPF skeletons if endian mismatches"
  perf metrics: Fix SEGV with --for-each-cgroup
  perf bpf skels: Stop using vmlinux.h generated from BTF, use subset of used structs + CO-RE
  perf stat: Separate bperf from bpf_profiler
  perf test record+probe_libc_inet_pton: Fix call chain match on x86_64
  perf test record+probe_libc_inet_pton: Fix call chain match on s390
  perf tracepoint: Fix memory leak in is_valid_tracepoint()
  perf cs-etm: Add fix for coresight trace for any range of CPUs
  perf build: Fix unescaped # in perf build-test
  perf unwind: Suppress massive unsupported target platform errors
  perf script: Add new parameter in kfree_skb tracepoint to the python scripts using it
  perf script: Print raw ip instead of binary offset for callchain
  perf symbols: Fix return incorrect build_id size in elf_read_build_id()
  perf list: Modify the warning message about scandirat(3)
  perf list: Fix memory leaks in print_tracepoint_events()
  perf lock contention: Rework offset calculation with BPF CO-RE
  perf lock contention: Fix struct rq lock access
  perf stat: Disable TopdownL1 on hybrid
  perf stat: Avoid SEGV on counter->name
  ...
 2023-05-07 11:32:18 -07:00
Linus Torvalds
17784de648 A single fix for debugobjects: 
The recent fix to ensure atomicity of lookup and allocation inadvertently
   broke the pool refill mechanism, so that debugobject OOMs now in certain
   situations. The reason is that the functions which got updated no longer
   invoke debug_objecs_init(), which is now the only place to care about
   refilling the tracking object pool.
 
   Restore the original behaviour by adding explicit refill opportunities to
   those places.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmRWoFATHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYocNID/9e1fU2Nf32woHokzBGgARKb69Kl/hb
 6yVdMpOnZtxmluheJLnqCWI4WbAB6NjulEMFv+KkwRZ+QndBKVEo8NMZ9RjbXDBb
 HEehI6DvsqRDjaytOLEZj+/8afcZ7bUBKk7JuUK+y5B1gZViazfp1eF3hpiKsIV9
 aowpH6c9lL/9sPgFe2qpp21MUmNTUQbHpz0vbYC0QjqSEU2zTlu8p//P6VLA3xpl
 qoh8Gu5qo/L8lPspN2v8TRVXdiqH67J+KpbGO9IuUQWYPQqFdc6WchhHwomAk8nr
 Nyn9Q1Lred96pTdW3B0Cumnxuf0VPt4X/uQxPSP0kCo/h0Q0Mh6fq59Z66H/Mhjk
 TAvM52w3VzfTmQB6WgaCD1HyRRqIK5Nd+XqXnenCkHN4kjmGXNLg9MUGxua5CVgF
 iQTSRYtN18rF9OevDOFGzsEig2RN1JFi9MnJg9Q/L8SoDUn5ZUfhPaSA/HcOBnSe
 m+9aeRxlb0hAP7+upFKsJkDYzJTtbP6LSx6qqZMyQWqYdsUVHpdiPtJpXb7mLIqQ
 wo83i/Ohq8+dF6ykd89ZcKJ8vLBrnE1rPFKKmvS5ov1eRt/hZbtR3tmMviCNna0M
 2nrJE2fKClbs8Dmc6NNboJdz51ASgZEi32XmdFkATiuZqiD1id7ne0f85ju7DHD9
 sOjfo4ZtIKD/Fw==
 =/0Kc
 -----END PGP SIGNATURE-----

Merge tag 'core-debugobjects-2023-05-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull debugobjects fix from Thomas Gleixner:
 "A single fix for debugobjects:

  The recent fix to ensure atomicity of lookup and allocation
  inadvertently broke the pool refill mechanism, so that debugobject
  OOMs now in certain situations. The reason is that the functions which
  got updated no longer invoke debug_objecs_init(), which is now the
  only place to care about refilling the tracking object pool.

  Restore the original behaviour by adding explicit refill opportunities
  to those places"

* tag 'core-debugobjects-2023-05-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  debugobject: Ensure pool refill (again)
 2023-05-07 11:04:26 -07:00
Linus Torvalds
6f69c98181 This push fixes the following problems: 
- A long-standing bug in crypto_engine.
 - A buggy but harmless check in the sun8i-ss driver.
 - A regression in the CRYPTO_USER interface.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEn51F/lCuNhUwmDeSxycdCkmxi6cFAmRQ5RgACgkQxycdCkmx
 i6dA1hAAsdP9Nx6d1ux0KYCI9FsnjU06JITzEA/LmzMXqxfElUzatZswaQuE8gSd
 SoUNuWk5PiKEK5BIJRdKNyKc+kElxCewknEbpvbHi3QGs/BZyfPuDf17gPnNaxsA
 KxA2WLU9XBaI0mt44mPuX5aLlCMnJ/RFhi7I5lJ3H31V6FU75BVE3DOCSxZNNipN
 eWfG1c2f3K9Q0Qc3CSxUkzvNKTy+YW+i/fwdisToX2Zj/jduWmUi8PcbQQIX5+PX
 Dch1LxnTu/l+Dn5PBICmhK8B86oTTCF83FOYX2f7ng4YuZ95gN/gn3/s5U4UkkKl
 n74rupfhKkUHFeWS93ToC0qKniuN+QuPA8GumBFYjywn2gA7CS1BSV3+++ryJxRO
 q9RXtHU7R7IXQGn5IKCqwzcBHrtnxUlIptMV2VH3Sbixtzn5QW0m10/lHHNKIy5E
 laXr+dr+uBcL5+mSDYvsRbaQxfQ9G5wGvelnl7c1hXEG1VV6O5pVXLTlw81U7K3u
 38m7dQl1/A3IetYpMrFcqhiGt0T84ttJerLaQRLNZCeNSAB70Gq/eSSSK4uyHl7I
 pVb2eiLE84NCUZfemD8CER9Zv6z+kFDEO6xpLeBOd6BAzfYJXaTaquLnERh/bduo
 WXnGlrDv6W+N+w4nP6AQ711mDqP5vMdLeSwbUfJChqeNHmM8nG8=
 =9Us7
 -----END PGP SIGNATURE-----

Merge tag 'v6.4-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:

 - A long-standing bug in crypto_engine

 - A buggy but harmless check in the sun8i-ss driver

 - A regression in the CRYPTO_USER interface

* tag 'v6.4-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: api - Fix CRYPTO_USER checks for report function
  crypto: engine - fix crypto_queue backlog handling
  crypto: sun8i-ss - Fix a test in sun8i_ss_setup_ivs()
 2023-05-07 10:57:14 -07:00
Linus Torvalds
63342b1dd5 9 smb3 client fixes, mostly DFS or reconnect related 
-----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAmRWpDAACgkQiiy9cAdy
 T1Gm1gv+IZhwnTNWJ5OLaFKVjKsM5flAaj4To15hFxHDUgfkTlG+c0T2jbrjQZq5
 OEdnXn/zgVrq/JTU6TIrMA6netmkNKEvEW/MPb5sKgbXdkM8dM8AkCYjs2WvaHLV
 IBrmo9URUr0/I0rBMCvEFHGQvvggAizKrkvqVZq1DmQ+8Y7WXMWBuINux6i2+NmJ
 uDgBx/FcEIqpc0i5STD7hQ3kZ/MnBOVcd4lxUAZk6GtpiKZe/u6veWpyt9FqD8N7
 AXQhhfoLXEPNda1N5P1tfCIsWO+70XzgF5eetr95/71f3MIWPNbdOyJ9MFyr8DzV
 dUA8uReV8RVF7uCEC6AnXmOlteZ855trzpk8EK54ey5fmcnelzMLsIKNbzxgcJZP
 y4EDNbP57b+G28SnWTLsdXfrBxicO7ExBPOiys2hfJ3VCC5xSkN04IDlRnsgZKiE
 Tbwo/eaZy31Z6EN5BiqjFI/RgNZJaEdl9GeGZJFum3AGB+wKDSWl5Es77i11PBuI
 5qZgahwT
 =ZsoO
 -----END PGP SIGNATURE-----

Merge tag '6.4-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "smb3 client fixes, mostly DFS or reconnect related:

   - Two DFS connection sharing fixes

   - DFS refresh fix

   - Reconnect fix

   - Two potential use after free fixes

   - Also print prefix patch in mount debug msg

   - Two small cleanup fixes"

* tag '6.4-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: Remove unneeded semicolon
  cifs: fix sharing of DFS connections
  cifs: avoid potential races when handling multiple dfs tcons
  cifs: protect access of TCP_Server_Info::{origin,leaf}_fullpath
  cifs: fix potential race when tree connecting ipc
  cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname
  cifs: print smb3_fs_context::source when mounting
  cifs: protect session status check in smb2_reconnect()
  SMB3.1.1: correct definition for app_instance_id create contexts
 2023-05-07 10:46:21 -07:00
Linus Torvalds
d6b8a8c49a A couple more patches that would be good to get into -rc1. 
- Revert an i.MX patch that's causing video failures because division
    math goes sideways
  - Fix a clang + W=1 build isue where FIELD_PREP() is taking a 32-bit
    variable instead of the usual u64 type
  - Fix a Kconfig bug in the StarFive JH7110 clk config that selects a
    reset controller when it can't be selected
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEE9L57QeeUxqYDyoaDrQKIl8bklSUFAmRW7qARHHNib3lkQGtl
 cm5lbC5vcmcACgkQrQKIl8bklSU8gA/8Dee5F/zZR+Y7TJGld2ZF5gTjo+5vWrPP
 SQ4FTCSZwnslrYcESXL+tfKxGv4JaP+bbWfufbbBYAlapNQZchSnRurg0rvYCIc2
 s9NeUbLvPhxJTaBJIOoUzOfzezvPpS9+eEnT6goyvrWrYBz+wolTrsOzI6t2ocyb
 9KpBEiaqAUSOmno6mNmqNg48UvBytgtXBnlC3YsqLlKuBZcRBrK/nHO+dUIqb2kO
 s0fbbnNI2Mal0e3Se25ehW803fl+OhnxshHO4EO+aRvCLhXINgyapFNR2vk1woN2
 UM38va+BPyzaI9goXcxMN5JROxGZFTmHMYtrqgimvFwxVDnHdz2jdokaY0fLhAMV
 mN5Y+J1XBdNui4Pz/iWzldkPWULtbLTCZZQFl1lbAdBcvPSQC+hIcQEFKxg0O4rk
 d0+B3a2SPfK1X5Ebl+BtOogbTGr616zVHgiiHeU0vxxFbqXboGh+iKJJdvtHA4WF
 t/y4gH3cx67NneUFMihNs+UqVSVnE6N1+EghTzAubnEIz3ONIQDyvWuTNagDZBWH
 QRMJz51691OGuSAW6lw9Nnfe0qNFiSzQpJptBT1bJ2GvTzOUI8izNLZ0ah/effuR
 avHhYGkf7DYggyldEf5eL/iVqUTJ1JYKpRdcuyfLAg4q0UPmRP43n4KdTtZ98wC3
 UdusEJ8EqDc=
 =IxvN
 -----END PGP SIGNATURE-----

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

Pull clk fixes from Stephen Boyd:
 "A couple more patches that would be good to get into -rc1:

   - Revert an i.MX patch that's causing video failures because division
     math goes sideways

   - Fix a clang + W=1 build isue where FIELD_PREP() is taking a 32-bit
     variable instead of the usual u64 type

   - Fix a Kconfig bug in the StarFive JH7110 clk config that selects a
     reset controller when it can't be selected"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: starfive: Fix RESET_STARFIVE_JH7110 can't be selected in a specified case
  clk: sp7021: Adjust width of _m in HWM_FIELD_PREP()
  Revert "clk: imx: composite-8m: Add support to determine_rate"
 2023-05-07 10:31:45 -07:00
Linus Torvalds
1c1094e47e - mailbox api: allow direct registration to a channel 
Convert omap and pcc to use mbox_bind_client
 - omap and hi6220 : use of_property_read_bool
 - test: fix double-free and use spinlock header
 - rockchip and bcm-pdc: drop of_match_ptr
 - mpfs: change config symbol
 - mediatek gce: support MT6795
 - qcom apcs: consolidate of_device_id
 			 support IPQ9574
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE6EwehDt/SOnwFyTyf9lkf8eYP5UFAmRWXwYACgkQf9lkf8eY
 P5V11Q/9G2V2V/QO6EJm8JQ6ElkO+cLeZezmyAhlt3l7n2B5WjEdnKX2nxOYmgZl
 qb+tYFJO7cd+lpMMTWz4PfOZbedkhrGXwzV8OMzXHJHfOdy3oojw8NYXY7IXdwsy
 jhik8jYSUx2vHYCTCbAT0SgNLWJHE+RMzFjg01Wb49zIqJf9kbw8RfmWItKGLBJt
 0ePSYW2o7LckMf3KSVV3YxfTlvX6Wb0rE0HXv/YI17XtDWT/RlpHb9rVvPWcpKfI
 wZjQ49wxjtpsilxAQijcT+gE2wmvx62S1HeSSwE7JZ/7k4Ihg269rUa3p0Dp3dcA
 RLyEhrLt3KWAWYWDXvsGVhaJvrtHI0BMA1Pb3C+qnjdcySs8AZgQbGTtI3RPOiuq
 3VCshYVZMEbVoXZOHFbov0e6pyBX5dLqU8W3FhfAVunovj/d7/+74h1uP6ecJjhP
 +DazIWSc20ATWUaD+UrjPhaGsNwEGceiJiY6nHhnzWZlu2K+2UXRlSrL/iAydvaj
 SRJeqHiY12fGPGVOScpCMylAGsa+VI+oA61JlMfjLvuyL4qSwNwZGpmCUlIod2AJ
 8vUGw254XMr5CiZ4u/D/cyi+7gJ4la53xNkNZIfFs7cP+gbCygaCHDy11bzQa+i1
 /sLR9voYIp0Woljds5a6L+o2bP5hkf/Uf+6WKEU8uaW98f5tA14=
 =NHj4
 -----END PGP SIGNATURE-----

Merge tag 'mailbox-v6.4' of git://git.linaro.org/landing-teams/working/fujitsu/integration

Pull mailbox updates from Jassi Brar:

 - mailbox api: allow direct registration to a channel and convert omap
   and pcc to use mbox_bind_client

 - omap and hi6220 : use of_property_read_bool

 - test: fix double-free and use spinlock header

 - rockchip and bcm-pdc: drop of_match_ptr

 - mpfs: change config symbol

 - mediatek gce: support MT6795

 - qcom apcs: consolidate of_device_id and support IPQ9574

* tag 'mailbox-v6.4' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  dt-bindings: mailbox: qcom: add compatible for IPQ9574 SoC
  mailbox: qcom-apcs-ipc: do not grow the of_device_id
  dt-bindings: mailbox: qcom,apcs-kpss-global: use fallbacks for few variants
  dt-bindings: mailbox: mediatek,gce-mailbox: Add support for MT6795
  mailbox: mpfs: convert SOC_MICROCHIP_POLARFIRE to ARCH_MICROCHIP_POLARFIRE
  mailbox: bcm-pdc: drop of_match_ptr for ID table
  mailbox: rockchip: drop of_match_ptr for ID table
  mailbox: mailbox-test: Fix potential double-free in mbox_test_message_write()
  mailbox: mailbox-test: Explicitly include header for spinlock support
  mailbox: Use of_property_read_bool() for boolean properties
  mailbox: pcc: Use mbox_bind_client
  mailbox: omap: Use mbox_bind_client
  mailbox: Allow direct registration to a channel
 2023-05-07 10:17:33 -07:00
Linus Torvalds
03e5cb7b50 for-6.4/io_uring-2023-05-07 
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmRXkp8QHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpsH3EADZ4ex4vvc2/giYjRYTdyda00GIdYGiSZaZ
 OBW59OBYJfDjsS99Z2U4638shyqM3rA6BwzvWD6hPUTShD7PUddIKDaanpCYBs+x
 GhcDhzeJxARjsp/5qZPQ4r3Hdp+kWRnOFu1BSniCEdWt43J6AOm0l5duuNxl1db5
 Jz+BkSgF1pICAVB5YfSPDShyFiDfc0qcv3rHZo/rVRjwmX3x4x+OVr97zbZInnH4
 fm2vcv2e3Dc8uQEB0XFEyBWNeC8hdhTNe60t1y3MlILaPjHrQlzl5lkQFZ9dtLG6
 /FDK+bD6Ex8t6SQnnQGrLa9q4vQYA6zlT5u/wdvzAkakmrSxt6phf23U1TbyZSQ8
 clSg6MSuyJAW7YhiT3OqAsNMvBZ5g/nKHjLxfkAe86N9YIrMebZW9GDF+fWf0q0K
 em7O4XPehjkCXKclCInMv2bkv+/pncrd84D7Jt3OmCPljBL6oXfWF3vJJQ6FaY+t
 G3tNxl1hMHqwX8uaaSqyeuMYAEYizZa+ebMmHJwm/151d0EKylAOh3i6O1e4bpk3
 Kn5irF6pfTV1g1TcmY3fOwNgMffcHc9Y4E8bXxMJAN9WiHDuopgn2C9+MrJ+KRrx
 pLN7VD9UK/5yFzHSMBhyM8lm0/oTIhfTVgb+WyuHmJLcRhAnyNy9RrIBhSD0AoH+
 UMyOexZR8w==
 =l7Mo
 -----END PGP SIGNATURE-----

Merge tag 'for-6.4/io_uring-2023-05-07' of git://git.kernel.dk/linux

Pull more io_uring updates from Jens Axboe:
 "Nothing major in here, just two different parts:

   - A small series from Breno that enables passing the full SQE down
     for ->uring_cmd().

     This is a prerequisite for enabling full network socket operations.
     Queued up a bit late because of some stylistic concerns that got
     resolved, would be nice to have this in 6.4-rc1 so the dependent
     work will be easier to handle for 6.5.

   - Fix for the huge page coalescing, which was a regression introduced
     in the 6.3 kernel release (Tobias)"

* tag 'for-6.4/io_uring-2023-05-07' of git://git.kernel.dk/linux:
  io_uring: Remove unnecessary BUILD_BUG_ON
  io_uring: Pass whole sqe to commands
  io_uring: Create a helper to return the SQE size
  io_uring/rsrc: check for nonconsecutive pages
 2023-05-07 10:00:09 -07:00
Arnaldo Carvalho de Melo
9a2d5178b9 Revert "perf build: Make BUILD_BPF_SKEL default, rename to NO_BPF_SKEL" 
This reverts commit a980755beb.

We need to better polish building with BPF skels, so revert back to
making it an experimental feature that has to be explicitely enabled
using BUILD_BPF_SKEL=1.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2023-05-06 18:07:37 -03:00
Arnaldo Carvalho de Melo
c3e6df97fa Revert "perf build: Warn for BPF skeletons if endian mismatches" 
This reverts commit 51924ae69e.

We need to better polish building with BPF skels, so revert back to
making it an experimental feature that has to be explicitely enabled
using BUILD_BPF_SKEL=1.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2023-05-06 18:06:43 -03:00
Linus Torvalds
fc4354c6e5 Reinstate the dmapool changes which were accidentally removed by 
2d55c16c0c ("dmapool: create/destroy cleanup").
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZFaTPAAKCRDdBJ7gKXxA
 ji1zAP4s/mWPQOJkoTR8cn9wRdGUB4FKgDiJwwYeOdcHRuylvwEAlgOD8qlizXYu
 z4tGx6J8p3X+IdEApqH6Up56wjW+Wgk=
 =X19M
 -----END PGP SIGNATURE-----

Merge tag 'mm-stable-2023-05-06-10-49' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull dmapool updates - again - from Andrew Morton:
 "Reinstate the dmapool changes which were accidentally removed by a
  mishap on the last commit in the previous attempt at the series"

Fixes: 2d55c16c0c ("dmapool: create/destroy cleanup").

[ The whole old series: def8574308ed..2d55c16c0c54 results in an empty
  diff because that last commit ended up being just a revert of all that
  came everything before it.     - Linus ]

* tag 'mm-stable-2023-05-06-10-49' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  dmapool: link blocks across pages
  dmapool: don't memset on free twice
  dmapool: simplify freeing
  dmapool: consolidate page initialization
  dmapool: rearrange page alloc failure handling
  dmapool: move debug code to own functions
  dmapool: speedup DMAPOOL_DEBUG with init_on_alloc
  dmapool: cleanup integer types
  dmapool: use sysfs_emit() instead of scnprintf()
  dmapool: remove checks for dev == NULL
 2023-05-06 11:43:08 -07:00
Linus Torvalds
706ce3caea Five hotfixes. Three are cc:stable, two pertain to post-6.3 merge window 
changes.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZFaSnAAKCRDdBJ7gKXxA
 jskTAPwIkL6xVMIEdtWfQNIy751o0onzfOQAIWgM3dSL83cMJQEA5OXxXt4LjrJw
 4q0zf4GLYXjMjhnfYr8zXF39y05iyQA=
 =nIhV
 -----END PGP SIGNATURE-----

Merge tag 'mm-hotfixes-stable-2023-05-06-10-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull hotfixes from Andrew Morton:
 "Five hotfixes.

  Three are cc:stable, two pertain to merge window changes"

* tag 'mm-hotfixes-stable-2023-05-06-10-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  afs: fix the afs_dir_get_folio return value
  nilfs2: do not write dirty data after degenerating to read-only
  mm: do not reclaim private data from pinned page
  nilfs2: fix infinite loop in nilfs_mdt_get_block()
  mm/mmap/vma_merge: always check invariants
 2023-05-06 11:25:03 -07:00
Keith Busch
da9619a30e dmapool: link blocks across pages 
The allocated dmapool pages are never freed for the lifetime of the pool. 
There is no need for the two level list+stack lookup for finding a free
block since nothing is ever removed from the list.  Just use a simple
stack, reducing time complexity to constant.

The implementation inserts the stack linking elements and the dma handle
of the block within itself when freed.  This means the smallest possible
dmapool block is increased to at most 16 bytes to accommodate these
fields, but there are no exisiting users requesting a dma pool smaller
than that anyway.

Removing the list has a significant change in performance. Using the
kernel's micro-benchmarking self test:

Before:

  # modprobe dmapool_test
  dmapool test: size:16   blocks:8192   time:57282
  dmapool test: size:64   blocks:8192   time:172562
  dmapool test: size:256  blocks:8192   time:789247
  dmapool test: size:1024 blocks:2048   time:371823
  dmapool test: size:4096 blocks:1024   time:362237

After:

  # modprobe dmapool_test
  dmapool test: size:16   blocks:8192   time:24997
  dmapool test: size:64   blocks:8192   time:26584
  dmapool test: size:256  blocks:8192   time:33542
  dmapool test: size:1024 blocks:2048   time:9022
  dmapool test: size:4096 blocks:1024   time:6045

The module test allocates quite a few blocks that may not accurately
represent how these pools are used in real life.  For a more marco level
benchmark, running fio high-depth + high-batched on nvme, this patch shows
submission and completion latency reduced by ~100usec each, 1% IOPs
improvement, and perf record's time spent in dma_pool_alloc/free were
reduced by half.

[kbusch@kernel.org: push new blocks in ascending order]
  Link: https://lkml.kernel.org/r/20230221165400.1595247-1-kbusch@meta.com
Link: https://lkml.kernel.org/r/20230126215125.4069751-12-kbusch@meta.com
Fixes: 2d55c16c0c ("dmapool: create/destroy cleanup")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:33:38 -07:00
Keith Busch
8ecc369554 dmapool: don't memset on free twice 
If debug is enabled, dmapool will poison the range, so no need to clear it
to 0 immediately before writing over it.

Link: https://lkml.kernel.org/r/20230126215125.4069751-11-kbusch@meta.com
Fixes: 2d55c16c0c ("dmapool: create/destroy cleanup")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:33:38 -07:00
Keith Busch
cc669954ab dmapool: simplify freeing 
The actions for busy and not busy are mostly the same, so combine these
and remove the unnecessary function.  Also, the pool is about to be freed
so there's no need to poison the page data since we only check for poison
on alloc, which can't be done on a freed pool.

Link: https://lkml.kernel.org/r/20230126215125.4069751-10-kbusch@meta.com
Fixes: 2d55c16c0c ("dmapool: create/destroy cleanup")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:33:37 -07:00
Keith Busch
f0bccea6bc dmapool: consolidate page initialization 
Various fields of the dma pool are set in different places. Move it all
to one function.

Link: https://lkml.kernel.org/r/20230126215125.4069751-9-kbusch@meta.com
Fixes: 2d55c16c0c ("dmapool: create/destroy cleanup")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:33:37 -07:00
Keith Busch
5407df10e5 dmapool: rearrange page alloc failure handling 
Handle the error in a condition so the good path can be in the normal
flow.

Link: https://lkml.kernel.org/r/20230126215125.4069751-8-kbusch@meta.com
Fixes: 2d55c16c0c ("dmapool: create/destroy cleanup")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:33:37 -07:00
Keith Busch
d93e08b755 dmapool: move debug code to own functions 
Clean up the normal path by moving the debug code outside it.

Link: https://lkml.kernel.org/r/20230126215125.4069751-7-kbusch@meta.com
Fixes: 2d55c16c0c ("dmapool: create/destroy cleanup")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:33:37 -07:00
Tony Battersby
290911c56f dmapool: speedup DMAPOOL_DEBUG with init_on_alloc 
Avoid double-memset of the same allocated memory in dma_pool_alloc() when
both DMAPOOL_DEBUG is enabled and init_on_alloc=1.

Link: https://lkml.kernel.org/r/20230126215125.4069751-6-kbusch@meta.com
Fixes: 2d55c16c0c ("dmapool: create/destroy cleanup")
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:33:36 -07:00
Tony Battersby
790233528d dmapool: cleanup integer types 
To represent the size of a single allocation, dmapool currently uses
'unsigned int' in some places and 'size_t' in other places.  Standardize
on 'unsigned int' to reduce overhead, but use 'size_t' when counting all
the blocks in the entire pool.

Link: https://lkml.kernel.org/r/20230126215125.4069751-5-kbusch@meta.com
Fixes: 2d55c16c0c ("dmapool: create/destroy cleanup")
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:33:36 -07:00
Tony Battersby
08cc96c894 dmapool: use sysfs_emit() instead of scnprintf() 
Use sysfs_emit instead of scnprintf, snprintf or sprintf.

Link: https://lkml.kernel.org/r/20230126215125.4069751-4-kbusch@meta.com
Fixes: 2d55c16c0c ("dmapool: create/destroy cleanup")
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:33:36 -07:00
Tony Battersby
67a540c60c dmapool: remove checks for dev == NULL 
dmapool originally tried to support pools without a device because
dma_alloc_coherent() supports allocations without a device.  But nobody
ended up using dma pools without a device, and trying to do so will result
in an oops.  So remove the checks for pool->dev == NULL since they are
unneeded bloat.

[kbusch@kernel.org: add check for null dev on create]
Link: https://lkml.kernel.org/r/20230126215125.4069751-3-kbusch@meta.com
Fixes: 2d55c16c0c ("dmapool: create/destroy cleanup")
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:33:36 -07:00
Linus Torvalds
994e2419f1 nfs: fix mis-merged __filemap_get_folio() error check 
Fix another case of an incorrect check for the returned 'folio' value
from __filemap_get_folio().

The failure case used to return NULL, but was changed by commit
66dabbb65d ("mm: return an ERR_PTR from __filemap_get_folio").

But in the meantime, commit ec108d3cc7 ("NFS: Convert readdir page
array functions to use a folio") added a new user of that function.

And my merge of the two did not fix this up correctly.

The ext4 merge had the same issue, but that one had been caught in
linux-next and got properly fixed while merging.

Fixes: 0127f25b5d ("Merge tag 'nfs-for-6.4-1' of git://git.linux-nfs.org/projects/anna/linux-nfs")
Cc: Anna Schumaker <anna@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2023-05-06 10:16:19 -07:00
Christoph Hellwig
58f5f6698a afs: fix the afs_dir_get_folio return value 
Keep returning NULL on failure instead of letting an ERR_PTR escape to
callers that don't expect it.

Link: https://lkml.kernel.org/r/20230503154526.1223095-2-hch@lst.de
Fixes: 66dabbb65d ("mm: return an ERR_PTR from __filemap_get_folio")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: David Howells <dhowells@redhat.com>
Tested-by: David Howells <dhowells@redhat.com>
Cc: Marc Dionne <marc.dionne@auristor.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:10:08 -07:00
Ryusuke Konishi
28a65b49eb nilfs2: do not write dirty data after degenerating to read-only 
According to syzbot's report, mark_buffer_dirty() called from
nilfs_segctor_do_construct() outputs a warning with some patterns after
nilfs2 detects metadata corruption and degrades to read-only mode.

After such read-only degeneration, page cache data may be cleared through
nilfs_clear_dirty_page() which may also clear the uptodate flag for their
buffer heads.  However, even after the degeneration, log writes are still
performed by unmount processing etc., which causes mark_buffer_dirty() to
be called for buffer heads without the "uptodate" flag and causes the
warning.

Since any writes should not be done to a read-only file system in the
first place, this fixes the warning in mark_buffer_dirty() by letting
nilfs_segctor_do_construct() abort early if in read-only mode.

This also changes the retry check of nilfs_segctor_write_out() to avoid
unnecessary log write retries if it detects -EROFS that
nilfs_segctor_do_construct() returned.

Link: https://lkml.kernel.org/r/20230427011526.13457-1-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: syzbot+2af3bc9585be7f23f290@syzkaller.appspotmail.com
  Link: https://syzkaller.appspot.com/bug?extid=2af3bc9585be7f23f290
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:10:07 -07:00
Jan Kara
d824ec2a15 mm: do not reclaim private data from pinned page 
If the page is pinned, there's no point in trying to reclaim it. 
Furthermore if the page is from the page cache we don't want to reclaim
fs-private data from the page because the pinning process may be writing
to the page at any time and reclaiming fs private info on a dirty page can
upset the filesystem (see link below).

Link: https://lore.kernel.org/linux-mm/20180103100430.GE4911@quack2.suse.cz
Link: https://lkml.kernel.org/r/20230428124140.30166-1-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Lorenzo Stoakes <lstoakes@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:10:07 -07:00
Ryusuke Konishi
a6a491c048 nilfs2: fix infinite loop in nilfs_mdt_get_block() 
If the disk image that nilfs2 mounts is corrupted and a virtual block
address obtained by block lookup for a metadata file is invalid,
nilfs_bmap_lookup_at_level() may return the same internal return code as
-ENOENT, meaning the block does not exist in the metadata file.

This duplication of return codes confuses nilfs_mdt_get_block(), causing
it to read and create a metadata block indefinitely.

In particular, if this happens to the inode metadata file, ifile,
semaphore i_rwsem can be left held, causing task hangs in lock_mount.

Fix this issue by making nilfs_bmap_lookup_at_level() treat virtual block
address translation failures with -ENOENT as metadata corruption instead
of returning the error code.

Link: https://lkml.kernel.org/r/20230430193046.6769-1-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: syzbot+221d75710bde87fa0e97@syzkaller.appspotmail.com
  Link: https://syzkaller.appspot.com/bug?extid=221d75710bde87fa0e97
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:10:07 -07:00
Lorenzo Stoakes
29417d292b mm/mmap/vma_merge: always check invariants 
We may still have inconsistent input parameters even if we choose not to
merge and the vma_merge() invariant checks are useful for checking this
with no production runtime cost (these are only relevant when
CONFIG_DEBUG_VM is specified).

Therefore, perform these checks regardless of whether we merge.

This is relevant, as a recent issue (addressed in commit "mm/mempolicy:
Correctly update prev when policy is equal on mbind") in the mbind logic
was only picked up in the 6.2.y stable branch where these assertions are
performed prior to determining mergeability.

Had this remained the same in mainline this issue may have been picked up
faster, so moving forward let's always check them.

Link: https://lkml.kernel.org/r/df548a6ae3fa135eec3b446eb3dae8eb4227da97.1682885809.git.lstoakes@gmail.com
Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-05-06 10:10:07 -07:00
Matthew Wilcox
38a55db987 filemap: Handle error return from __filemap_get_folio() 
Smatch reports that filemap_fault() was missed in the conversion of
__filemap_get_folio() error returns from NULL to ERR_PTR.

Fixes: 66dabbb65d ("mm: return an ERR_PTR from __filemap_get_folio")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Reported-by: syzbot+48011b86c8ea329af1b9@syzkaller.appspotmail.com
Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2023-05-06 10:08:59 -07:00
Linus Torvalds
dd9e11d647 SCSI misc on 20230506 
Six late arriving patches for the merge window.  Five are minor
 assorted fixes and updates.  The IPR driver change removes SATA
 support, which will now allow a major cleanup in the ATA subsystem
 because it was the only driver still using the old attachment
 mechanism.  The driver is only used on power systems and SATA was used
 to support a DVD device, which has long been moved to a different hba.
 IBM chose this route instead of porting ipr to the newer SATA
 interfaces.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCZFZGfiYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishbgIAP9V4dKN
 e5xLwf4q9+bKKCSCmlMrPeAnfJXyWdW6VWvWhQD9H4bgemsWhcUOztvpB2pOUpYx
 JaJCgj/MAA0FSXhy3Bk=
 =FwUd
 -----END PGP SIGNATURE-----

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

Pull more SCSI updates from James Bottomley:
 "Six late arriving patches for the merge window. Five are minor
  assorted fixes and updates.

  The IPR driver change removes SATA support, which will now allow a
  major cleanup in the ATA subsystem because it was the only driver
  still using the old attachment mechanism. The driver is only used on
  power systems and SATA was used to support a DVD device, which has
  long been moved to a different hba. IBM chose this route instead of
  porting ipr to the newer SATA interfaces"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qedi: Fix use after free bug in qedi_remove()
  scsi: ufs: core: mcq: Fix &hwq->cq_lock deadlock issue
  scsi: ipr: Remove several unused variables
  scsi: pm80xx: Log device registration
  scsi: ipr: Remove SATA support
  scsi: scsi_debug: Abort commands from scsi_debug_device_reset()
 2023-05-06 08:37:28 -07:00
Linus Torvalds
a3b111b046 for-6.4/block-2023-05-06 
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmRWLQYQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpnwhD/4xRYfAY4O0oGZCITiKEEFxiSfDHCPMEBji
 zTEtideDRjcrpFmjmZ411C9prW32MxYQ3wQTf4O7w4t906xTYVr9FQy8g3Et4izI
 zglPcsa2jPzYCadQ0Ye4n9dRuYOH9FDJzDDLC+smu8zQKKmAqEAN/1ftpnADdVrY
 qX1sHyfz4RQRAgTHg2WqgKOi2O9VwGSMwOfBocmzAnruv9oLUlypcGnFPRCSZH/a
 OKpUZlvQhCBZTKScvVxQeJMg2Tl5yokQ0TH+gkQsdav9XcPJktqXiuD+c4h6q5ux
 oTlysEqcrwcaAafOcV0w9u80SFNlFACUYsNmEnFJaPXFTqAdNHvo1DJNsmxiHJDU
 bGo5ktlo5b/VZ51niOoWvGxursavq16G4yIYlGGHc7f4wGs12oc5ZP/yM3GRUY+C
 PdezwEvvQufxP7sFokfpgAS4SuH+tBlrhFXMsYaI4NukZQW4TK1zzbMrzOkdxFhW
 BOx17VFUKWtUnRmxinFGIA8Vj+FXN+E+ND+FoDsbrMyJD4maKDdJapPchG0J0Vbs
 pDcsB4c0pBC6H2xrobKiA1CuSq2t2qvyvwe1Zl2Xd+RVW9vBB5SI6HXYrC+UtxwY
 7LfX8F13cFD1E6iJ9Nta6x8fOunGnOVBdW5O0k4hDWEuZduvHItEDn2c3Ehqp4Jw
 P8dFBbk8SQ==
 =gAYf
 -----END PGP SIGNATURE-----

Merge tag 'for-6.4/block-2023-05-06' of git://git.kernel.dk/linux

Pull more block updates from Jens Axboe:

 - MD pull request via Song:
      - Improve raid5 sequential IO performance on spinning disks, which
        fixes a regression since v6.0 (Jan Kara)
      - Fix bitmap offset types, which fixes an issue introduced in this
        merge window (Jonathan Derrick)

 - Cleanup of hweight type used for cgroup writeback (Maxim)

 - Fix a regression with the "has_submit_bio" changes across partitions
   (Ming)

 - Cleanup of QUEUE_FLAG_ADD_RANDOM clearing.

   We used to set this flag on queues non blk-mq queues, and hence some
   drivers clear it unconditionally. Since all of these have since been
   converted to true blk-mq drivers, drop the useless clear as the bit
   is not set (Chaitanya)

 - Fix the flags being set in a bio for a flush for drbd (Christoph)

 - Cleanup and deduplication of the code handling setting block device
   capacity (Damien)

 - Fix for ublk handling IO timeouts (Ming)

 - Fix for a regression in blk-cgroup teardown (Tao)

 - NBD documentation and code fixes (Eric)

 - Convert blk-integrity to using device_attributes rather than a second
   kobject to manage lifetimes (Thomas)

* tag 'for-6.4/block-2023-05-06' of git://git.kernel.dk/linux:
  ublk: add timeout handler
  drbd: correctly submit flush bio on barrier
  mailmap: add mailmap entries for Jens Axboe
  block: Skip destroyed blkg when restart in blkg_destroy_all()
  writeback: fix call of incorrect macro
  md: Fix bitmap offset type in sb writer
  md/raid5: Improve performance for sequential IO
  docs nbd: userspace NBD now favors github over sourceforge
  block nbd: use req.cookie instead of req.handle
  uapi nbd: add cookie alias to handle
  uapi nbd: improve doc links to userspace spec
  blk-integrity: register sysfs attributes on struct device
  blk-integrity: convert to struct device_attribute
  blk-integrity: use sysfs_emit
  block/drivers: remove dead clear of random flag
  block: sync part's ->bd_has_submit_bio with disk's
  block: Cleanup set_capacity()/bdev_set_nr_sectors()
 2023-05-06 08:28:58 -07:00
Linus Torvalds
7644c82319 pipe-nonblock-2023-05-06 
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmRWK50QHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpkP8D/9PKQy4FCTRKRYABomlkqc9UlrsEzkkpXy+
 t2kCZ7OmgZ1go/3gRv8AVx0xC/S8zgs8vCwriUXVQH2Q4D2FnV9/Cy5xXzQJ2jE5
 sWdj5+Sks2Zerq7hRfItxFxP70Jlvn4r2Ud6n9uoBKI+DirpGQB5xwqCF/Z9I9Ev
 cAOtq3cvdKqiqAmrA0WAjjpLpvuC/OOEXyQf6n+viQ7iJZgCHDWplpa4jQCamrlJ
 wDz5eNkptDc3KnZ1QGtfMlCdmzwjFEyi20Eq8VLo6OBkhoP6FymqWC6YkeigibI4
 Da+fyx/wJvqnsuXPLCFgla5MXMRHLb9uoRRFbon6XqXABPZ8v4v8kZhswVLUxBzz
 UjBI8cmKQ8rkHu+4o/522lCRQCMU5h7LxGgCguePi9+Hap2AuBSmpOzpgDqnNDmN
 ARD6gW4uOkXRU6CgvppOio3hTn3BU9bUs8iN8ym3XW0eQo6nUElRT2mwC1XEJDYn
 HAM1MqoJWU5rWp1yyAdiw8rLBOmMLMyNaowHlWEjEGiykU2FlfNDp/HJeq/gxjEK
 NxBC5+qlhbDp3hTqDJVaRa+i8MchrTJLXfJuXzP3el3c1dp2vU5gLO49WYAA6G5d
 oycxTm2SyX6dUwWNeH06jgocVt99fC7klTuEq59Jm9ykFSfbj2kfv24U+jDi/KvX
 DW++jNDl+g==
 =uryD
 -----END PGP SIGNATURE-----

Merge tag 'pipe-nonblock-2023-05-06' of git://git.kernel.dk/linux

Pull nonblocking pipe io_uring support from Jens Axboe:
 "Here's the revised edition of the FMODE_NOWAIT support for pipes, in
  which we just flag it as such supporting FMODE_NOWAIT unconditionally,
  but clear it if we ever end up using splice/vmsplice on the pipe.

  The pipe read/write side is perfectly fine for nonblocking IO, however
  splice and vmsplice can potentially wait for IO with the pipe lock
  held"

* tag 'pipe-nonblock-2023-05-06' of git://git.kernel.dk/linux:
  pipe: set FMODE_NOWAIT on pipes
  splice: clear FMODE_NOWAIT on file if splice/vmsplice is used
 2023-05-06 08:15:20 -07:00
Linus Torvalds
0021b532b2 sound fixes for 6.4-rc1 
Here are collections of small fixes for rc1.
 
 The only (LOC-wise) dominant change was ASoC Qualcomm fix, but most
 of it was merely a code shuffling.
 
 Another significant change here is for ALSA PCM core; it received a
 revert and a series of fixes for PCM auto-silencing where it caused
 a regression in the previous PR for rc1.
 
 Others are all small: ASoC Intel fixes, various quirks for ASoC AMD,
 HD-audio and USB-audio, the continued legacy emu10k1 code cleanup,
 and some documentation updates.
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAmRWACMOHHRpd2FpQHN1
 c2UuZGUACgkQLtJE4w1nLE8vPA//Vh+gO0e1wcmCqeoIIJUwr5G0hQYY2Fp5Ke6A
 3MuQAW3JyZ7hj5Xkor1PRalelinHUuvGMFDeazLnr92MV9zplnTisbKxp7EmDhJE
 3iEdvj9evKTyMk7RpIhX1rhrHy0QLaCHDgDZDrv7IapyDpLUOl0lFtJQrlYV8DbS
 b0uSBJ/kpMi5AH+W7RWpdnPIFd2j8tDiyKGBDpAo3l8TIjkwdsdKo9jBz7uNpf0R
 tL8J6U4dA/Yo86XPAwg0g5tkug0vWOhZY8tdqNvJJFNgo9dW8ofqkCC4lg7JSmqM
 ugTm/l0CZnEC09t2GSw7k7bsUGxZkWus7r8PTEw9CryGsR2pQYAvcjMMFpXqTu6K
 Rc0PPkvFdmX2PIGtbkebwr/5y5Dbr2SmzqJjdkOSH91PZdle9RwN6k19dlXi1OFr
 ucS9g5gAxGWMNwOnLFud3x+qIN1XwZuuHI1CZd7jhlQ3krV+dEl6m9sttFs4saPs
 MNCMOXdVcKZ6NCBPRaCCwAEgP6Ttitdj25edTy1tKMr3td7ECInXQZiAPlAXLLwm
 8aRscx07jj9cpfuk9fBTBvZdiAoK9KqYCLFSle4DzOJkyLuA9OiVFp3iixeoVIsb
 fRQdaYdwq166SWtJSBbsRnfxI5zxKhxz/vx0SLNf32Flh2SyIU0kQ6Wk88V716L7
 D4tPskk=
 =jd8l
 -----END PGP SIGNATURE-----

Merge tag 'sound-fix-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes for rc1.

  The only (LOC-wise) dominant change was ASoC Qualcomm fix, but most of
  it was merely a code shuffling.

  Another significant change here is for ALSA PCM core; it received a
  revert and a series of fixes for PCM auto-silencing where it caused a
  regression in the previous PR for rc1.

  Others are all small: ASoC Intel fixes, various quirks for ASoC AMD,
  HD-audio and USB-audio, the continued legacy emu10k1 code cleanup, and
  some documentation updates"

* tag 'sound-fix-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (23 commits)
  ALSA: pcm: use exit controlled loop in snd_pcm_playback_silence()
  ALSA: pcm: simplify top-up mode init in snd_pcm_playback_silence()
  ALSA: pcm: playback silence - move silence variable updates to separate function
  ALSA: pcm: playback silence - remove extra code
  ALSA: pcm: fix playback silence - correct incremental silencing
  ALSA: pcm: fix playback silence - use the actual new_hw_ptr for the threshold mode
  ALSA: pcm: Revert "ALSA: pcm: rewrite snd_pcm_playback_silence()"
  ALSA: hda/realtek: Fix mute and micmute LEDs for an HP laptop
  ALSA: caiaq: input: Add error handling for unsupported input methods in `snd_usb_caiaq_input_init`
  ALSA: usb-audio: Add quirk for Pioneer DDJ-800
  ALSA: hda/realtek: support HP Pavilion Aero 13-be0xxx Mute LED
  ASoC: Intel: soc-acpi-cht: Add quirk for Nextbook Ares 8A tablet
  ASoC: amd: yc: Add Asus VivoBook Pro 14 OLED M6400RC to the quirks list for acp6x
  ASoC: codecs: wcd938x: fix accessing regmap on unattached devices
  ALSA: docs: Fix code block indentation in ALSA driver example
  ALSA: docs: Extend module parameters description
  ALSA: hda/realtek: Add quirk for ASUS UM3402YAR using CS35L41
  ALSA: emu10k1: use more existing defines instead of open-coded numbers
  ASoC: amd: yc: Add ASUS M3402RA into DMI table
  ALSA: hda/realtek: Add quirk for ThinkPad P1 Gen 6
  ...
 2023-05-06 08:07:11 -07:00
Linus Torvalds
27e0c8461c regulator: Fix for v6.4 
A trivial typo fix that came in during the merge window.
 -----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCgAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmRVnlMTHGJyb29uaWVA
 a2VybmVsLm9yZwAKCRAk1otyXVSH0HK3CACFKsLv9Hh7L5TORM7qVbmsNv5x7ovB
 fC9juegYq7iszc/2+9350TkCSXvI8dVvdprufXrkaTV7IsEDtZDwesAR/eQtTJL3
 ttmqqtsX1F6Jua0rP/AlWsM/H1KbwW/630Hb1YtJj3ohFTqit1cZgDSe/kd/DNFL
 VSuTXmbnYqR4Is1UfWMU9lUgVwFX5GpHUnsRWVgxuj0LjdMUVgUqEU7JcfZcW0Uj
 qt8X/bqALTKNZpGhBYK2w1ECL2qsQCfVhTA5ymBUwafCsgpNY/Z/ZUrzPTJCINTN
 idGDBcaIZOsKky0YXTCv7N00gs7gj9vR77oFGvkmOTYK8ngLGuhF39v8
 =Hq75
 -----END PGP SIGNATURE-----

Merge tag 'regulator-fix-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "A trivial typo fix that came in during the merge window"

* tag 'regulator-fix-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: consumer.rst: fix 'regulator_enable' typo.
 2023-05-06 08:06:09 -07:00
Linus Torvalds
2e1e133788 ten ksmbd server fixes, including some important security fixes 
-----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAmRUx3IACgkQiiy9cAdy
 T1G8MAv/TY6Oprfh58t4I4bWQKW49kOzFsPbNk9454CnjEnlV1jHirAKolTEN3ut
 11ZvzAcUUPa23EBPOKaeroUI718AcAp91ByH58ERZtwHFz0ml0/ePL4+ihGiCUn3
 0rTFSuZy1rW8Ld5sM9PMuDD3bzqAnmGZlOXAPg9acrbNyUwGguv4OF3MEjvYXpwF
 vzcixvnG0HsIgCyM0gl4xK6vECx8PoDbUZDs44VWAPf5676PNwntJcbYq/GVCCGq
 EiPDm1ke40nmSjxSDLQcpfWj3d6dYrmm6PVpa3wUSdI+MeuqSm0YR9DptCo6cawE
 WqE6ZrUVEJyUlH6mFu6O4VZhwQ8jO4Jsasr3tay9crD8QSCLThLFkH4/Xg1u5JJw
 miMaGk43hKHFStA00rObmLLFtk+HrPdKv5HIbByrm3m5x58hG+2PtKnsD8OI8Ny3
 p7/lS4H/HHE9BZ44//rKtsRsAe7OAWHfYjiS/pPIhjepxr+2ra1RaI2ciKLNwIqd
 tbPTVemh
 =sgnv
 -----END PGP SIGNATURE-----

Merge tag '6.4-rc-ksmbd-server-fixes-part2' of git://git.samba.org/ksmbd

Pull ksmbd server fixes from Steve French:
 "Ten ksmbd server fixes, including some important security fixes:

   - Two use after free fixes

   - Fix RCU callback race

   - Deadlock fix

   - Three patches to prevent session setup attacks

   - Prevent guest users from establishing multichannel sessions

   - Fix null pointer dereference in query FS info

   - Memleak fix"

* tag '6.4-rc-ksmbd-server-fixes-part2' of git://git.samba.org/ksmbd:
  ksmbd: call rcu_barrier() in ksmbd_server_exit()
  ksmbd: fix racy issue under cocurrent smb2 tree disconnect
  ksmbd: fix racy issue from smb2 close and logoff with multichannel
  ksmbd: not allow guest user on multichannel
  ksmbd: fix deadlock in ksmbd_find_crypto_ctx()
  ksmbd: block asynchronous requests when making a delay on session setup
  ksmbd: destroy expired sessions
  ksmbd: fix racy issue from session setup and logoff
  ksmbd: fix NULL pointer dereference in smb2_get_info_filesystem()
  ksmbd: fix memleak in session setup
 2023-05-05 19:16:58 -07:00
Linus Torvalds
ed23734c23 Including fixes from netfilter. 
Current release - regressions:
 
  - sched: act_pedit: free pedit keys on bail from offset check
 
 Current release - new code bugs:
 
  - pds_core:
   - Kconfig fixes (DEBUGFS and AUXILIARY_BUS)
   - fix mutex double unlock in error path
 
 Previous releases - regressions:
 
  - sched: cls_api: remove block_cb from driver_list before freeing
 
  - nf_tables: fix ct untracked match breakage
 
  - eth: mtk_eth_soc: drop generic vlan rx offload
 
  - sched: flower: fix error handler on replace
 
 Previous releases - always broken:
 
  - tcp: fix skb_copy_ubufs() vs BIG TCP
 
  - ipv6: fix skb hash for some RST packets
 
  - af_packet: don't send zero-byte data in packet_sendmsg_spkt()
 
  - rxrpc: timeout handling fixes after moving client call connection
    to the I/O thread
 
  - ixgbe: fix panic during XDP_TX with > 64 CPUs
 
  - igc: RMW the SRRCTL register to prevent losing timestamp config
 
  - dsa: mt7530: fix corrupt frames using TRGMII on 40 MHz XTAL MT7621
 
  - r8152:
    - fix flow control issue of RTL8156A
    - fix the poor throughput for 2.5G devices
    - move setting r8153b_rx_agg_chg_indicate() to fix coalescing
    - enable autosuspend
 
  - ncsi: clear Tx enable mode when handling a Config required AEN
 
  - octeontx2-pf: macsec: fixes for CN10KB ASIC rev
 
 Misc:
 
  - 9p: remove INET dependency
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmRVeUIACgkQMUZtbf5S
 IrtTug/9Hhg/L0PTSwrfuGh4W1/cjheMWppNLkwyWQUiKG7FcZQ9vu9PxceE3VRu
 2fTqHyvgDMZ8jACovXObeda8z1+g3s/tIPaXELephBIjVlF/h3kG2OaIzlU4jDb4
 A4vklwf8eLbfyVBG22QgKl/I70zVMtnmnOo6c6CPuIOTcMPzslndFO9tB0nCg99F
 DCgCM1BBP1tz+OUch2rLnSzYcqkWqS49BhRk6dhYSliawUFU/5+1tDGDjwWolkfm
 0jqP9DjBOSpZKO8m7SpsUNz7NFRIfYErWZ+YebWbggNxj/6TRJTP83MM0tGoK1rE
 /mz2xpuOki59frlwVOAD6gb/qefjHUp21P4NA7bnhizxFlQL5MHpCeGQ9yLHBSmY
 9Q4ArJkM4jXQ0oDA2nII/pz+cDZGEWFGQ14WW3kYUb7WFmISH4I9OiA9i0TBW6OL
 r1Y/rqzkUvtKWzh9RpiAF9lsdHAm3SX9ES5RfMxzv0x886VOZR4jaMmokRDdPRzq
 0r2Oyj75b62+X0r44Fe22Pl/kPS/uh3642xo9h85aAv/EvhT9JNzMvomJm9d6tkb
 966I085AVbwxPAy+rl5SWyAq60EWDExNTjZvPv0mSMlmSsQ9iK5//xOF2Saw2zai
 /44zQ27tVGkCC44Ou5KmfJN3u4OrKkhcuyxtcDr9QeoOdKZRkMg=
 =9xND
 -----END PGP SIGNATURE-----

Merge tag 'net-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from netfilter.

  Current release - regressions:

   - sched: act_pedit: free pedit keys on bail from offset check

  Current release - new code bugs:

   - pds_core:
      - Kconfig fixes (DEBUGFS and AUXILIARY_BUS)
      - fix mutex double unlock in error path

  Previous releases - regressions:

   - sched: cls_api: remove block_cb from driver_list before freeing

   - nf_tables: fix ct untracked match breakage

   - eth: mtk_eth_soc: drop generic vlan rx offload

   - sched: flower: fix error handler on replace

  Previous releases - always broken:

   - tcp: fix skb_copy_ubufs() vs BIG TCP

   - ipv6: fix skb hash for some RST packets

   - af_packet: don't send zero-byte data in packet_sendmsg_spkt()

   - rxrpc: timeout handling fixes after moving client call connection
     to the I/O thread

   - ixgbe: fix panic during XDP_TX with > 64 CPUs

   - igc: RMW the SRRCTL register to prevent losing timestamp config

   - dsa: mt7530: fix corrupt frames using TRGMII on 40 MHz XTAL MT7621

   - r8152:
      - fix flow control issue of RTL8156A
      - fix the poor throughput for 2.5G devices
      - move setting r8153b_rx_agg_chg_indicate() to fix coalescing
      - enable autosuspend

   - ncsi: clear Tx enable mode when handling a Config required AEN

   - octeontx2-pf: macsec: fixes for CN10KB ASIC rev

  Misc:

   - 9p: remove INET dependency"

* tag 'net-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (69 commits)
  net: bcmgenet: Remove phy_stop() from bcmgenet_netif_stop()
  pds_core: fix mutex double unlock in error path
  net/sched: flower: fix error handler on replace
  Revert "net/sched: flower: Fix wrong handle assignment during filter change"
  net/sched: flower: fix filter idr initialization
  net: fec: correct the counting of XDP sent frames
  bonding: add xdp_features support
  net: enetc: check the index of the SFI rather than the handle
  sfc: Add back mailing list
  virtio_net: suppress cpu stall when free_unused_bufs
  ice: block LAN in case of VF to VF offload
  net: dsa: mt7530: fix network connectivity with multiple CPU ports
  net: dsa: mt7530: fix corrupt frames using trgmii on 40 MHz XTAL MT7621
  9p: Remove INET dependency
  netfilter: nf_tables: fix ct untracked match breakage
  af_packet: Don't send zero-byte data in packet_sendmsg_spkt().
  igc: read before write to SRRCTL register
  pds_core: add AUXILIARY_BUS and NET_DEVLINK to Kconfig
  pds_core: remove CONFIG_DEBUG_FS from makefile
  ionic: catch failure from devlink_alloc
  ...
 2023-05-05 19:12:01 -07:00
Linus Torvalds
a5e219005a some more driver bugfixes and a DT binding conversion 
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmRVbZsACgkQFA3kzBSg
 KbZ2JQ/+MeH1WFmgwehnJqdkNUg0Iy0q8gJ3C3RH3I6/T0d9nV4U4BChPWqcw6wr
 pjP2KG9ygXDb/sSb27gtXwxgCMnlXTCO06lEj2HyR7hLVxPV39cp5jwWqtmz0Xh1
 DzvbsuicZyDUNQoeOYvsyUSAjYGHpIzNS7PZmVXDDN7aoP2iMOmGfbTe6xtHVcAx
 Ax9aQrNUIsaB4xLWGy8kXw4p2kQLXvmXa3JFth+3ME9QwrfLaC1Ra7qAvy0RKZwj
 JVAPsWsS/AK2U+bW6fTmwnuAWp+U/xRIjnleU7ynqriqIrOVJV39mcEZiHAubDc7
 7q7vxOQL4FooLhvT0fLcfvRiCWvocdSaRFaqCyD0y3SNPQ+gJEhlhBZXCqeU1xPf
 2We+aObVoyLdd/TB3c1jnVeTC9a5/oxGElwJGHyrwWrLPwf/8QuAr3rCj32Tn/Fw
 ofELqGK6bJY7nSO00JFoLFltzrrt+zJd1dZ/uQyqb6p91OTNMY95lWLjmjONt9wq
 2xKQ03jeGysTpOxY/KOn1mLw4RBhXcQJuJA3JXN0u91lbr0L/hDc8cDEMf7hGjOG
 F+G3w2Cw96HBkMokmSa8uZnt4W54yMFmpJaLMasmNWJYc4khg58qLwksPIPwdYgx
 8F++YYdtqUT+cvMp4Asql/CaCWYwJdOdW9h7/y1r+mJNNFOCEOk=
 =3aLp
 -----END PGP SIGNATURE-----

Merge tag 'i2c-for-6.4-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull more i2c updates from Wolfram Sang:
 "Some more driver bugfixes and a DT binding conversion"

* tag 'i2c-for-6.4-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  dt-bindings: i2c: brcm,kona-i2c: convert to YAML
  i2c: gxp: fix build failure without CONFIG_I2C_SLAVE
  i2c: imx-lpi2c: avoid taking clk_prepare mutex in PM callbacks
  i2c: omap: Fix standard mode false ACK readings
  i2c: tegra: Fix PEC support for SMBUS block read
 2023-05-05 19:07:17 -07:00
Lukas Bulwahn
c12753d5fa s390: remove the unneeded select GCC12_NO_ARRAY_BOUNDS 
Commit 0da6e5fd6c ("gcc: disable '-Warray-bounds' for gcc-13 too") makes
config GCC11_NO_ARRAY_BOUNDS to be for disabling -Warray-bounds in any gcc
version 11 and upwards, and with that, removes the GCC12_NO_ARRAY_BOUNDS
config as it is now covered by the semantics of GCC11_NO_ARRAY_BOUNDS.

As GCC11_NO_ARRAY_BOUNDS is yes by default, there is no need for the s390
architecture to explicitly select GCC11_NO_ARRAY_BOUNDS. Hence, the select
GCC12_NO_ARRAY_BOUNDS in arch/s390/Kconfig can simply be dropped.

Remove the unneeded "select GCC12_NO_ARRAY_BOUNDS".

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2023-05-05 18:56:23 -07:00
Ian Rogers
6c73f819b6 perf metrics: Fix SEGV with --for-each-cgroup 
Ensure the metric threshold is copied correctly or else a use of
uninitialized memory happens.

Fixes: d0a3052f6f ("perf metric: Compute and print threshold values")
Reported-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230505204119.3443491-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2023-05-05 19:18:55 -03:00
Arnaldo Carvalho de Melo
a887466562 perf bpf skels: Stop using vmlinux.h generated from BTF, use subset of used structs + CO-RE 
Linus reported a build break due to using a vmlinux without a BTF elf
section to generate the vmlinux.h header with bpftool for use in the BPF
tools in tools/perf/util/bpf_skel/*.bpf.c.

Instead add a vmlinux.h file with the structs needed with the fields the
tools need, marking the structs with __attribute__((preserve_access_index)),
so that libbpf's CO-RE code can fixup the struct field offsets.

In some cases the vmlinux.h file that was being generated by bpftool
from the kernel BTF information was not needed at all, just including
linux/bpf.h, sometimes linux/perf_event.h was enough as non-UAPI
types were not being used.

To keep te patch small, include those UAPI headers from the trimmed down
vmlinux.h file, that then provides the tools with just the structs and
the subset of its fields needed for them.

Testing it:

  # perf lock contention -b find / > /dev/null
  ^C contended   total wait     max wait     avg wait         type   caller

           7     53.59 us     10.86 us      7.66 us     rwlock:R   start_this_handle+0xa0
           2     30.35 us     21.99 us     15.17 us	 rwsem:R   iterate_dir+0x52
           1	  9.04 us      9.04 us      9.04 us     rwlock:W   start_this_handle+0x291
           1	  8.73 us      8.73 us      8.73 us     spinlock   raw_spin_rq_lock_nested+0x1e
  #
  # perf lock contention -abl find / > /dev/null
  ^C contended   total wait     max wait     avg wait            address   symbol

           1    262.96 ms    262.96 ms    262.96 ms   ffff8e67502d0170    (mutex)
          12    244.24 us     39.91 us     20.35 us   ffff8e6af56f8070   mmap_lock (rwsem)
           7     30.28 us      6.85 us      4.33 us   ffff8e6c865f1d40   rq_lock (spinlock)
           3	  7.42 us      4.03 us      2.47 us   ffff8e6c864b1d40   rq_lock (spinlock)
           2	  3.72 us      2.19 us      1.86 us   ffff8e6c86571d40   rq_lock (spinlock)
           1	  2.42 us      2.42 us      2.42 us   ffff8e6c86471d40   rq_lock (spinlock)
           4	  2.11 us	559 ns       527 ns   ffffffff9a146c80   rcu_state (spinlock)
           3	  1.45 us	818 ns       482 ns   ffff8e674ae8384c    (rwlock)
           1	   870 ns	870 ns       870 ns   ffff8e68456ee060    (rwlock)
           1	   663 ns	663 ns       663 ns   ffff8e6c864f1d40   rq_lock (spinlock)
           1	   573 ns	573 ns       573 ns   ffff8e6c86531d40   rq_lock (spinlock)
           1	   472 ns	472 ns       472 ns   ffff8e6c86431740    (spinlock)
           1	   397 ns	397 ns       397 ns   ffff8e67413a4f04    (spinlock)
  #
  # perf test offcpu
  95: perf record offcpu profiling tests                              : Ok
  #
  # perf kwork latency --use-bpf
  Starting trace, Hit <Ctrl+C> to stop and report
  ^C
    Kwork Name                     | Cpu  | Avg delay     | Count     | Max delay     | Max delay start     | Max delay end	  |
   --------------------------------------------------------------------------------------------------------------------------------
    (w)flush_memcg_stats_dwork     | 0000 |   1056.212 ms |         2 |   2112.345 ms |     550113.229573 s |     550115.341919 s |
    (w)toggle_allocation_gate	   | 0000 |     10.144 ms |        62 |    416.389 ms |     550113.453518 s |     550113.869907 s |
    (w)0xffff8e6748e28080          | 0002 |	 0.623 ms |         1 |      0.623 ms |     550110.989841 s |     550110.990464 s |
    (w)vmstat_shepherd             | 0000 |	 0.586 ms |        10 |      2.828 ms |     550111.971536 s |     550111.974364 s |
    (w)vmstat_update               | 0007 |	 0.363 ms |         5 |      1.634 ms |     550113.222520 s |     550113.224154 s |
    (w)vmstat_update               | 0000 |	 0.324 ms |        10 |      2.827 ms |     550111.971526 s |     550111.974354 s |
    (w)0xffff8e674c5f4a58          | 0002 |	 0.102 ms |         5 |      0.134 ms |     550110.989839 s |     550110.989972 s |
    (w)psi_avgs_work               | 0001 |	 0.086 ms |         3 |      0.107 ms |     550114.957852 s |     550114.957959 s |
    (w)psi_avgs_work               | 0000 |	 0.079 ms |         5 |      0.100 ms |     550118.605668 s |     550118.605768 s |
    (w)kfree_rcu_monitor           | 0006 |	 0.079 ms |         1 |      0.079 ms |     550110.925821 s |     550110.925900 s |
    (w)psi_avgs_work               | 0004 |	 0.079 ms |         1 |      0.079 ms |     550109.581835 s |     550109.581914 s |
    (w)psi_avgs_work               | 0001 |	 0.078 ms |         1 |      0.078 ms |     550109.197809 s |     550109.197887 s |
    (w)psi_avgs_work               | 0002 |	 0.077 ms |         5 |      0.086 ms |     550110.669819 s |     550110.669905 s |
  <SNIP>
  # strace -e bpf -o perf-stat-bpf-counters.output perf stat -e cycles --bpf-counters sleep 1

   Performance counter stats for 'sleep 1':

           6,197,983	  cycles

         1.003922848 seconds time elapsed

         0.000000000 seconds user
         0.002032000 seconds sys

  # head -7 perf-stat-bpf-counters.output
  bpf(BPF_OBJ_GET, {pathname="/sys/fs/bpf/perf_attr_map", bpf_fd=0, file_flags=0}, 16) = 3
  bpf(BPF_OBJ_GET_INFO_BY_FD, {info={bpf_fd=3, info_len=88, info=0x7ffcead64990}}, 16) = 0
  bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=3, key=0x24129e0, value=0x7ffcead65a48, flags=BPF_ANY}, 32) = 0
  bpf(BPF_LINK_GET_FD_BY_ID, {link_id=1252}, 12) = -1 ENOENT (No such file or directory)
  bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=2, insns=0x7ffcead65780, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0,
+func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0}, 116) = 4
  bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=2, insns=0x7ffcead65920, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0,
+func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128) = 4
  bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\0\20\0\0\0\20\0\0\0\5\0\0\0\1\0\0\0\0\0\0\1"..., btf_log_buf=NULL, btf_size=45, btf_log_size=0, btf_log_level=0}, 28) = 4
  #

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Suggested-by: Andrii Nakryiko <andrii@kernel.org>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Song Liu <song@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Co-developed-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/lkml/ZFU1PJrn8YtHIqno@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2023-05-05 19:18:39 -03:00
Jakub Kicinski
644bca1d48 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 
There's a fix which landed in net-next, pull it in along
with the couple of minor cleanups.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-05-05 13:35:45 -07:00
Dmitrii Dolgov
ecc68ee216 perf stat: Separate bperf from bpf_profiler 
It seems that perf stat -b <prog id> doesn't produce any results:

    $ perf stat -e cycles -b 4 -I 10000 -vvv
    Control descriptor is not initialized
    cycles: 0 0 0
                time        counts unit      events
	10.007641640    <not supported>      cycles

Looks like this happens because fentry/fexit progs are getting loaded, but the
corresponding perf event is not enabled and not added into the events bpf map.
I think there is some mixing up between two type of bpf support, one for bperf
and one for bpf_profiler. Both are identified via evsel__is_bpf, based on which
perf events are enabled, but for the latter (bpf_profiler) a perf event is
required. Using evsel__is_bperf to check only bperf produces expected results:

    $ perf stat -e cycles -b 4 -I 10000 -vvv
    Control descriptor is not initialized
    ------------------------------------------------------------
    perf_event_attr:
      size                             136
      sample_type                      IDENTIFIER
      read_format                      TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING
      disabled                         1
      exclude_guest                    1
    ------------------------------------------------------------
    sys_perf_event_open: pid -1  cpu 0  group_fd -1  flags 0x8 = 3
    ------------------------------------------------------------
    [...perf_event_attr for other CPUs...]
    ------------------------------------------------------------
    cycles: 309426 169009 169009
		time             counts unit events
	10.010091271             309426      cycles

The final numbers correspond (at least in the level of magnitude) to the
same metric obtained via bpftool.

Fixes: 112cb56164 ("perf stat: Introduce config stat.bpf-counter-events")
Reviewed-by: Song Liu <song@kernel.org>
Signed-off-by: Dmitrii Dolgov <9erthalion6@gmail.com>
Tested-by: Song Liu <song@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20230412182316.11628-1-9erthalion6@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 2023-05-05 17:30:05 -03:00
Linus Torvalds
418d5c9831 Devicetree fixes for 6.4, part 1: 
- Add Conor Dooley as a DT binding maintainer
 
 - Swap the order of parsing /memreserve/ and /reserved-memory nodes so
   that the /reserved-memory nodes which have more information are
   handled first
 
 - Fix some property dependencies in riscv,pmu binding
 
 - Update maintainers entries on a couple of bindings
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEktVUI4SxYhzZyEuo+vtdtY28YcMFAmRVUlMACgkQ+vtdtY28
 YcORHhAAsRsKpJ4pq/R978It4v5R4iTvSvdpinxxpuW2WGfF8SD6XGZW6ursIlTZ
 y2VaT8k/1t3A8Q2vNDnT8aigNv0TkQiKs6rGYJFl2G+F5zUj0jwwrZNh7s2F2TuE
 LSB3Mt/YLEo2d1J+SwTKKsBlN5qwDrlON5fCtEz4nBmszLsJiaWMkUAgCD5zLJPu
 iPalGKBez5iOshIjtpAtnbjy4w5iMl2WzCQAtmLS1E0FUclj0cbtcBnLNqQTb0kQ
 LynQpoK8ccjVaRJSm4S6nRsOyeczZ5tD1A/jzHzhdwt701f668qhuGZy8coeWPM7
 ZPgQf3R4KIml/CsiU2lh6t4A/CQ5w0+AcAh9bUp/PgUpHmy8qRIYtCEGcdIUoxea
 S/gn26rbzoJnyGq2WU6gy8kNGi1fmvb8iok0PnHZMDKzpxHgKzUec5gnNfO4zQyX
 lzoxlSdAen7qsHe7rpOF4iwIcbzy3yWpEmojInpMcx9hNn7waSx559+sBisj4jhh
 0HE8s+N5BYiFV87njst9F1yqu9x2yVOTjIgLaXzsvO258g18QI66uxIjkFyXbJD1
 dJoX/rrM7hoeJVmjp7vSSdWGFVY1/AHiIeqxVTtZWSt1ri7WT7jfxL8axZtgZoi1
 D6nxgGkpdHks+MH9S5NFI4bKYIgE9RlTYQ9gB282krrTkeuc2/Q=
 =/lCA
 -----END PGP SIGNATURE-----

Merge tag 'devicetree-fixes-for-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Add Conor Dooley as a DT binding maintainer

 - Swap the order of parsing /memreserve/ and /reserved-memory nodes so
   that the /reserved-memory nodes which have more information are
   handled first

 - Fix some property dependencies in riscv,pmu binding

 - Update maintainers entries on a couple of bindings

* tag 'devicetree-fixes-for-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  MAINTAINERS: add Conor as a dt-bindings maintainer
  dt-bindings: perf: riscv,pmu: fix property dependencies
  dt-bindings: xilinx: Remove Naga from memory and mtd bindings
  of: fdt: Scan /memreserve/ last
  dt-bindings: clock: r9a06g032-sysctrl: Change maintainer to Fabrizio Castro
  dt-bindings: pinctrl: renesas,rzv2m: Change maintainer to Fabrizio Castro
  dt-bindings: pinctrl: renesas,rzn1: Change maintainer to Fabrizio Castro
  dt-bindings: i2c: renesas,rzv2m: Change maintainer to Fabrizio Castro
 2023-05-05 13:27:59 -07:00
Linus Torvalds
647681bfa6 A handful of late-arriving documentation fixes, plus one Spanish 
translation that has been ready for some time but got applied late.
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAmRT2nkACgkQF0NaE2wM
 flglRwf/fLxKnCmh/j6zVjXVjb00UWj9NV5ZmrrnFxU+ajyzejoiKeyYvXcdiKKp
 R1PpVJPF9ZO2DQ43QEj01SAl3qyMKWbvbISg5L/btOQtV563h7zktyjULOai7UfF
 6+svqWi2Cl0gqdix3AVICZryRYBNBY62PeIWcWka+VXmMGCijwLf/jRRXwNa/7kf
 kye9C5UG01uGauAw2t4Ol/jbIsZa4ID9FiUHJI/aQfLCgqVVO9pVQXA1igDF743Y
 vt4IGX4qsjKGsAAOMWfieFGozcCwQsc01hC2usa8yx36ov6EBT79hmoWMWHsLeHJ
 NcLfF7LZCJNUD3g+c1hLhfjjYMufaw==
 =dljY
 -----END PGP SIGNATURE-----

Merge tag 'docs-6.4-2' of git://git.lwn.net/linux

Pull more documentation updates from Jonathan Corbet:
 "A handful of late-arriving documentation fixes, plus one Spanish
  translation that has been ready for some time but got applied late"

* tag 'docs-6.4-2' of git://git.lwn.net/linux:
  docs/sp_SP: Add translation of process/adding-syscalls
  CREDITS: Update email address for Mat Martineau
  Documentation: update kernel stack for x86_64
  docs: Remove unnecessary unicode character
  docs: fix "Reviewd" typo
  Documentation: timers: hrtimers: Make hybrid union historical
  docs/admin-guide/mm/ksm.rst fix intraface -> interface typo
  doc:it_IT: fix some typos
 2023-05-05 13:16:42 -07:00
Linus Torvalds
e919a3f705 Minor tracing updates: 
- Make buffer_percent read/write. The buffer_percent file is how users can
   state how long to block on the tracing buffer depending on how much
   is in the buffer. When it hits the "buffer_percent" it will wake the
   task waiting on the buffer. For some reason it was set to read-only.
   This was not noticed because testing was done as root without SELinux,
   but with SELinux it will prevent even root to write to it without having
   CAP_DAC_OVERRIDE.
 
 - The "touched_functions" was added this merge window, but one of the
   reasons for adding it was not implemented. That was to show what functions
   were not only touched, but had either a direct trampoline attached to
   it, or a kprobe or live kernel patching that can "hijack" the function
   to run a different function. The point is to know if there's functions
   in the kernel that may not be behaving as the kernel code shows. This can
   be used for debugging. TODO: Add this information to kernel oops too.
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCZFUcrxQccm9zdGVkdEBn
 b29kbWlzLm9yZwAKCRAp5XQQmuv6qgOoAP0U2R6+jvA2ehQFb0UTCH9wEu2uEELA
 g2CkdPNdn6wJjAD+O1+v5nVkqSpsArjHOhv5OGYrgh+VSXK3Z8EpQ9vUVgg=
 =nfoh
 -----END PGP SIGNATURE-----

Merge tag 'trace-v6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull more tracing updates from Steven Rostedt:

 - Make buffer_percent read/write.

   The buffer_percent file is how users can state how long to block on
   the tracing buffer depending on how much is in the buffer. When it
   hits the "buffer_percent" it will wake the task waiting on the
   buffer. For some reason it was set to read-only.

   This was not noticed because testing was done as root without
   SELinux, but with SELinux it will prevent even root to write to it
   without having CAP_DAC_OVERRIDE.

 - The "touched_functions" was added this merge window, but one of the
   reasons for adding it was not implemented.

   That was to show what functions were not only touched, but had either
   a direct trampoline attached to it, or a kprobe or live kernel
   patching that can "hijack" the function to run a different function.
   The point is to know if there's functions in the kernel that may not
   be behaving as the kernel code shows. This can be used for debugging.

   TODO: Add this information to kernel oops too.

* tag 'trace-v6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  ftrace: Add MODIFIED flag to show if IPMODIFY or direct was attached
  tracing: Fix permissions for the buffer_percent file
 2023-05-05 13:11:02 -07:00
Linus Torvalds
b115d85a95 Locking changes in v6.4: 
- Introduce local{,64}_try_cmpxchg() - a slightly more optimal
    primitive, which will be used in perf events ring-buffer code.
 
  - Simplify/modify rwsems on PREEMPT_RT, to address writer starvation.
 
  - Misc cleanups/fixes.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmRUvUoRHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1hlIhAArP33rTKi+HAndQ3UHW3XtmHRxEEQTfiE
 wvIoN89h58QW4DGMeAV4ltafbIPQAkI233Aogwz903L0qbDV0Ro4OU3XJembRuWl
 LeOADKwYyypXdOa8XICuY9aIP7e1/h0DF3ySs7inLcwK9JCyAIxnsVHYej+hsRXA
 kZoXN98T3TR1C0V9UQy4SU3HI1lC3tsG3R9Ti9TnYUg3ygVXhRE9lOQ4kv9lFPVz
 BNuj2Blj7KNiVaY9kehrhO54THI7NmsCVZO44Rcl48I0KAcFulAmFcNlE7GnR8Nj
 thj38pU6XAFVHXG8MYjgE+Al+PnK48NtJxexCtHyGvGG4D2aLzRMnkolxAUCcVuK
 G+UBsQm3ybjYgHgt1zuN6ehcpT+5tULkDH8JA7vrgZYaVgxHzsUaHgYfCCWKnmUY
 mPR6aImEmYZwZVNLskhe0HT4mq244bp+VnWlnJ6LZK7t/itenvDhqnj7KTi4Bfej
 lTHplOTitV/8uCEW8V4pX+YTEenVsIQmTc/G3iIabXP/6HzLffA3q4vyW6vKIErE
 pqrpuFA0Z4GB+pU0mJXt7+I7zscDVthwI055jDyQBjA7IcdVGm2MjQ6xcNRW5FYN
 UynvaEMocue4ZO4WdFsd1ZBUd9VfoNzGQspBw46DhCL1MEQBYv36SKQNjej/9aRr
 ilVwqnOWI2s=
 =mM0A
 -----END PGP SIGNATURE-----

Merge tag 'locking-core-2023-05-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking updates from Ingo Molnar:

 - Introduce local{,64}_try_cmpxchg() - a slightly more optimal
   primitive, which will be used in perf events ring-buffer code

 - Simplify/modify rwsems on PREEMPT_RT, to address writer starvation

 - Misc cleanups/fixes

* tag 'locking-core-2023-05-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/atomic: Correct (cmp)xchg() instrumentation
  locking/x86: Define arch_try_cmpxchg_local()
  locking/arch: Wire up local_try_cmpxchg()
  locking/generic: Wire up local{,64}_try_cmpxchg()
  locking/atomic: Add generic try_cmpxchg{,64}_local() support
  locking/rwbase: Mitigate indefinite writer starvation
  locking/arch: Rename all internal __xchg() names to __arch_xchg()
 2023-05-05 12:56:55 -07:00
Linus Torvalds
d5ed10bb80 Merge branch 'x86-uaccess-cleanup': x86 uaccess header cleanups 
Merge my x86 uaccess updates branch.

The LAM ("Linear Address Masking") updates in this release made me
unhappy about how "access_ok()" was done, and it actually turned out to
have a couple of small bugs in it too.  This is my cleanup of the code:

 - use the sign bit of the __user pointer rather than masking the
   address and checking it against the TASK_SIZE range.

   We already did this part for the get/put_user() side, but
   'access_ok()' did the naïve "mask and range check" thing, which not
   only generates nasty code, but also ended up meaning that __access_ok
   itself didn't do a good job, and so copy_from_user_nmi() didn't get
   the check right.

 - move all the code that is 64-bit only into the 64-bit version of the
   header file, so that we don't unnecessarily pollute the shared x86
   code and make it look like LAM might work in 32-bit too.

 - fix a bug in the address masking (that doesn't end up mattering: in
   this case the fix was to just remove the buggy code entirely).

 - a couple of trivial cleanups and added commentary about the
   access_ok() rules.

* x86-uaccess-cleanup:
  x86-64: mm: clarify the 'positive addresses' user address rules
  x86: mm: remove 'sign' games from LAM untagged_addr*() macros
  x86: uaccess: move 32-bit and 64-bit parts into proper <asm/uaccess_N.h> header
  x86: mm: remove architecture-specific 'access_ok()' define
  x86-64: make access_ok() independent of LAM
 2023-05-05 12:29:57 -07:00