Skip to content

L
linux
Switch branch/tag
  1. 13 Sep, 2023 3 commits
    • Linus Torvalds's avatar
      Merge tag 'tpmdd-v6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd · 23f108dc
      Linus Torvalds authored 
      Pull tpm fix from Jarkko Sakkinen.

* tag 'tpmdd-v6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm: Fix typo in tpmrm class definition
      23f108dc
    • Linus Torvalds's avatar
      Merge tag 'parisc-for-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · 847165d7
      Linus Torvalds authored 
      Pull parisc architecture fixes from Helge Deller:

 - fix reference to exported symbols for parisc64 [Masahiro Yamada]

 - Block-TLB (BTLB) support on 32-bit CPUs

 - sparse and build-warning fixes

* tag 'parisc-for-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  linux/export: fix reference to exported functions for parisc64
  parisc: BTLB: Initialize BTLB tables at CPU startup
  parisc: firmware: Simplify calling non-PA20 functions
  parisc: BTLB: _edata symbol has to be page aligned for BTLB support
  parisc: BTLB: Add BTLB insert and purge firmware function wrappers
  parisc: BTLB: Clear possibly existing BTLB entries
  parisc: Prepare for Block-TLB support on 32-bit kernel
  parisc: shmparam.h: Document aliasing requirements of PA-RISC
  parisc: irq: Make irq_stack_union static to avoid sparse warning
  parisc: drivers: Fix sparse warning
  parisc: iosapic.c: Fix sparse warnings
  parisc: ccio-dma: Fix sparse warnings
  parisc: sba-iommu: Fix sparse warnigs
  parisc: sba: Fix compile warning wrt list of SBA devices
  parisc: sba_iommu: Fix build warning if procfs if disabled
      847165d7
    • Linus Torvalds's avatar
      Merge tag 'trace-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace · 99214f67
      Linus Torvalds authored 
      Pull tracing fixes from Steven Rostedt:

 - Add missing LOCKDOWN checks for eventfs callers

   When LOCKDOWN is active for tracing, it causes inconsistent state
   when some functions succeed and others fail.

 - Use dput() to free the top level eventfs descriptor

   There was a race between accesses and freeing it.

 - Fix a long standing bug that eventfs exposed due to changing timings
   by dynamically creating files. That is, If a event file is opened for
   an instance, there's nothing preventing the instance from being
   removed which will make accessing the files cause use-after-free
   bugs.

 - Fix a ring buffer race that happens when iterating over the ring
   buffer while writers are active. Check to make sure not to read the
   event meta data if it's beyond the end of the ring buffer sub buffer.

 - Fix the print trigger that disappeared because the test to create it
   was looking for the event dir field being filled, but now it has the
   "ef" field filled for the eventfs structure.

 - Remove the unused "dir" field from the event structure.

 - Fix the order of the trace_dynamic_info as it had it backwards for
   the offset and len fields for which one was for which endianess.

 - Fix NULL pointer dereference with eventfs_remove_rec()

   If an allocation fails in one of the eventfs_add_*() functions, the
   caller of it in event_subsystem_dir() or event_create_dir() assigns
   the result to the structure. But it's assigning the ERR_PTR and not
   NULL. This was passed to eventfs_remove_rec() which expects either a
   good pointer or a NULL, not ERR_PTR. The fix is to not assign the
   ERR_PTR to the structure, but to keep it NULL on error.

 - Fix list_for_each_rcu() to use list_for_each_srcu() in
   dcache_dir_open_wrapper(). One iteration of the code used RCU but
   because it had to call sleepable code, it had to be changed to use
   SRCU, but one of the iterations was missed.

 - Fix synthetic event print function to use "as_u64" instead of passing
   in a pointer to the union. To fix big/little endian issues, the u64
   that represented several types was turned into a union to define the
   types properly.

* tag 'trace-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  eventfs: Fix the NULL pointer dereference bug in eventfs_remove_rec()
  tracefs/eventfs: Use list_for_each_srcu() in dcache_dir_open_wrapper()
  tracing/synthetic: Print out u64 values properly
  tracing/synthetic: Fix order of struct trace_dynamic_info
  selftests/ftrace: Fix dependencies for some of the synthetic event tests
  tracing: Remove unused trace_event_file dir field
  tracing: Use the new eventfs descriptor for print trigger
  ring-buffer: Do not attempt to read past "commit"
  tracefs/eventfs: Free top level files on removal
  ring-buffer: Avoid softlockup in ring_buffer_resize()
  tracing: Have event inject files inc the trace array ref count
  tracing: Have option files inc the trace array ref count
  tracing: Have current_trace inc the trace array ref count
  tracing: Have tracing_max_latency inc the trace array ref count
  tracing: Increase trace array ref count on enable and filter files
  tracefs/eventfs: Use dput to free the toplevel events directory
  tracefs/eventfs: Add missing lockdown checks
  tracefs: Add missing lockdown check to tracefs_create_dir()
      99214f67
  3. 12 Sep, 2023 9 commits
  5. 11 Sep, 2023 9 commits
  7. 10 Sep, 2023 6 commits
    • Linus Torvalds's avatar
      Linux 6.6-rc1 · 0bb80ecc
      Linus Torvalds authored
      0bb80ecc
    • Linus Torvalds's avatar
      Merge tag 'topic/drm-ci-2023-08-31-1' of git://anongit.freedesktop.org/drm/drm · 1548b060
      Linus Torvalds authored 
      Pull drm ci scripts from Dave Airlie:
 "This is a bunch of ci integration for the freedesktop gitlab instance
  where we currently do upstream userspace testing on diverse sets of
  GPU hardware. From my perspective I think it's an experiment worth
  going with and seeing how the benefits/noise playout keeping these
  files useful.

  Ideally I'd like to get this so we can do pre-merge testing on PRs
  eventually.

  Below is some info from danvet on why we've ended up making the
  decision and how we can roll it back if we decide it was a bad plan.

  Why in upstream?

   - like documentation, testcases, tools CI integration is one of these
     things where you can waste endless amounts of time if you
     accidentally have a version that doesn't match your source code

   - but also like the above, there's a balance, this is the initial cut
     of what we think makes sense to keep in sync vs out-of-tree,
     probably needs adjustment

   - gitlab supports out-of-repo gitlab integration and that's what's
     been used for the kernel in drm, but it results in per-driver
     fragmentation and lots of duplicated effort. the simple act of
     smashing an arbitrary winner into a topic branch already started
     surfacing patches on dri-devel and sparking good cross driver team
     discussions

  Why gitlab?

   - it's not any more shit than any of the other CI

   - drm userspace uses it extensively for everything in userspace, we
     have a lot of people and experience with this, including
     integration of hw testing labs

   - media userspace like gstreamer is also on gitlab.fd.o, and there's
     discussion to extend this to the media subsystem in some fashion

  Can this be shared?

   - there's definitely a pile of code that could move to scripts/ if
     other subsystem adopt ci integration in upstream kernel git. other
     bits are more drm/gpu specific like the igt-gpu-tests/tools
     integration

   - docker images can be run locally or in other CI runners

  Will we regret this?

   - it's all in one directory, intentionally, for easy deletion

   - probably 1-2 years in upstream to see whether this is worth it or a
     Big Mistake. that's roughly what it took to _really_ roll out solid
     CI in the bigger userspace projects we have on gitlab.fd.o like
     mesa3d"

* tag 'topic/drm-ci-2023-08-31-1' of git://anongit.freedesktop.org/drm/drm:
  drm: ci: docs: fix build warning - add missing escape
  drm: Add initial ci/ subdirectory
      1548b060
    • Linus Torvalds's avatar
      Merge tag 'x86-urgent-2023-09-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · e56b2b60
      Linus Torvalds authored 
      Pull x86 fixes from Ingo Molnar:
 "Fix preemption delays in the SGX code, remove unnecessarily
  UAPI-exported code, fix a ld.lld linker (in)compatibility quirk and
  make the x86 SMP init code a bit more conservative to fix kexec()
  lockups"

* tag 'x86-urgent-2023-09-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sgx: Break up long non-preemptible delays in sgx_vepc_release()
  x86: Remove the arch_calc_vm_prot_bits() macro from the UAPI
  x86/build: Fix linker fill bytes quirk/incompatibility for ld.lld
  x86/smp: Don't send INIT to non-present and non-booted CPUs
      e56b2b60
    • Linus Torvalds's avatar
      Merge tag 'perf-urgent-2023-09-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · e79dbf03
      Linus Torvalds authored 
      Pull x86 perf event fix from Ingo Molnar:
 "Work around a firmware bug in the uncore PMU driver, affecting certain
  Intel systems"

* tag 'perf-urgent-2023-09-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/uncore: Correct the number of CHAs on EMR
      e79dbf03
    • Linus Torvalds's avatar
      Merge tag 'perf-tools-for-v6.6-1-2023-09-05' of... · 535a265d
      Linus Torvalds authored 
      Merge tag 'perf-tools-for-v6.6-1-2023-09-05' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools updates from Arnaldo Carvalho de Melo:
 "perf tools maintainership:

   - Add git information for perf-tools and perf-tools-next trees and
     branches to the MAINTAINERS file. That is where development now
     takes place and myself and Namhyung Kim have write access, more
     people to come as we emulate other maintainer groups.

  perf record:

   - Record kernel data maps when 'perf record --data' is used, so that
     global variables can be resolved and used in tools that do data
     profiling.

  perf trace:

   - Remove the old, experimental support for BPF events in which a .c
     file was passed as an event: "perf trace -e hello.c" to then get
     compiled and loaded.

     The only known usage for that, that shipped with the kernel as an
     example for such events, augmented the raw_syscalls tracepoints and
     was converted to a libbpf skeleton, reusing all the user space
     components and the BPF code connected to the syscalls.

     In the end just the way to glue the BPF part and the user space
     type beautifiers changed, now being performed by libbpf skeletons.

     The next step is to use BTF to do pretty printing of all syscall
     types, as discussed with Alan Maguire and others.

     Now, on a perf built with BUILD_BPF_SKEL=1 we get most if not all
     path/filenames/strings, some of the networking data structures,
     perf_event_attr, etc, i.e. systemwide tracing of nanosleep calls
     and perf_event_open syscalls while 'perf stat' runs 'sleep' for 5
     seconds:

      # perf trace -a -e *nanosleep,perf* perf stat -e cycles,instructions sleep 5
         0.000 (   9.034 ms): perf/327641 perf_event_open(attr_uptr: { type: 0 (PERF_TYPE_HARDWARE), size: 136, config: 0 (PERF_COUNT_HW_CPU_CYCLES), sample_type: IDENTIFIER, read_format: TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING, disabled: 1, inherit: 1, enable_on_exec: 1, exclude_guest: 1 }, pid: 327642 (perf), cpu: -1, group_fd: -1, flags: FD_CLOEXEC) = 3
         9.039 (   0.006 ms): perf/327641 perf_event_open(attr_uptr: { type: 0 (PERF_TYPE_HARDWARE), size: 136, config: 0x1 (PERF_COUNT_HW_INSTRUCTIONS), sample_type: IDENTIFIER, read_format: TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING, disabled: 1, inherit: 1, enable_on_exec: 1, exclude_guest: 1 }, pid: 327642 (perf-exec), cpu: -1, group_fd: -1, flags: FD_CLOEXEC) = 4
             ? (           ): gpm/991  ... [continued]: clock_nanosleep())               = 0
        10.133 (           ): sleep/327642 clock_nanosleep(rqtp: { .tv_sec: 5, .tv_nsec: 0 }, rmtp: 0x7ffd36f83ed0) ...
             ? (           ): pool-gsd-smart/3051  ... [continued]: clock_nanosleep())   = 0
        30.276 (           ): gpm/991 clock_nanosleep(rqtp: { .tv_sec: 2, .tv_nsec: 0 }, rmtp: 0x7ffcc6f73710) ...
       223.215 (1000.430 ms): pool-gsd-smart/3051 clock_nanosleep(rqtp: { .tv_sec: 1, .tv_nsec: 0 }, rmtp: 0x7f6e7fffec90) = 0
        30.276 (2000.394 ms): gpm/991  ... [continued]: clock_nanosleep())               = 0
      1230.814 (           ): pool-gsd-smart/3051 clock_nanosleep(rqtp: { .tv_sec: 1, .tv_nsec: 0 }, rmtp: 0x7f6e7fffec90) ...
      1230.814 (1000.404 ms): pool-gsd-smart/3051  ... [continued]: clock_nanosleep())   = 0
      2030.886 (           ): gpm/991 clock_nanosleep(rqtp: { .tv_sec: 2, .tv_nsec: 0 }, rmtp: 0x7ffcc6f73710) ...
      2237.709 (1000.153 ms): pool-gsd-smart/3051 clock_nanosleep(rqtp: { .tv_sec: 1, .tv_nsec: 0 }, rmtp: 0x7f6e7fffec90) = 0
             ? (           ): crond/1172  ... [continued]: clock_nanosleep())            = 0
      3242.699 (           ): pool-gsd-smart/3051 clock_nanosleep(rqtp: { .tv_sec: 1, .tv_nsec: 0 }, rmtp: 0x7f6e7fffec90) ...
      2030.886 (2000.385 ms): gpm/991  ... [continued]: clock_nanosleep())               = 0
      3728.078 (           ): crond/1172 clock_nanosleep(rqtp: { .tv_sec: 60, .tv_nsec: 0 }, rmtp: 0x7ffe0971dcf0) ...
      3242.699 (1000.158 ms): pool-gsd-smart/3051  ... [continued]: clock_nanosleep())   = 0
      4031.409 (           ): gpm/991 clock_nanosleep(rqtp: { .tv_sec: 2, .tv_nsec: 0 }, rmtp: 0x7ffcc6f73710) ...
        10.133 (5000.375 ms): sleep/327642  ... [continued]: clock_nanosleep())          = 0

      Performance counter stats for 'sleep 5':

             2,617,347      cycles
             1,855,997      instructions                     #    0.71  insn per cycle

           5.002282128 seconds time elapsed

           0.000855000 seconds user
           0.000852000 seconds sys

  perf annotate:

   - Building with binutils' libopcode now is opt-in (BUILD_NONDISTRO=1)
     for licensing reasons, and we missed a build test on
     tools/perf/tests makefile.

     Since we now default to NDEBUG=1, we ended up segfaulting when
     building with BUILD_NONDISTRO=1 because a needed initialization
     routine was being "error checked" via an assert.

     Fix it by explicitly checking the result and aborting instead if it
     fails.

     We better back propagate the error, but at least 'perf annotate' on
     samples collected for a BPF program is back working when perf is
     built with BUILD_NONDISTRO=1.

  perf report/top:

   - Add back TUI hierarchy mode header, that is seen when using 'perf
     report/top --hierarchy'.

   - Fix the number of entries for 'e' key in the TUI that was
     preventing navigation of lines when expanding an entry.

  perf report/script:

   - Support cross platform register handling, allowing a perf.data file
     collected on one architecture to have registers sampled correctly
     displayed when analysis tools such as 'perf report' and 'perf
     script' are used on a different architecture.

   - Fix handling of event attributes in pipe mode, i.e. when one uses:

  	perf record -o - | perf report -i -

     When no perf.data files are used.

   - Handle files generated via pipe mode with a version of perf and
     then read also via pipe mode with a different version of perf,
     where the event attr record may have changed, use the record size
     field to properly support this version mismatch.

  perf probe:

   - Accessing global variables from uprobes isn't supported, make the
     error message state that instead of stating that some minimal
     kernel version is needed to have that feature. This seems just a
     tool limitation, the kernel probably has all that is needed.

  perf tests:

   - Fix a reference count related leak in the dlfilter v0 API where the
     result of a thread__find_symbol_fb() is not matched with an
     addr_location__exit() to drop the reference counts of the resolved
     components (machine, thread, map, symbol, etc). Add a dlfilter test
     to make sure that doesn't regresses.

   - Lots of fixes for the 'perf test' written in shell script related
     to problems found with the shellcheck utility.

   - Fixes for 'perf test' shell scripts testing features enabled when
     perf is built with BUILD_BPF_SKEL=1, such as 'perf stat' bpf
     counters.

   - Add perf record sample filtering test, things like the following
     example, that gets implemented as a BPF filter attached to the
     event:

       # perf record -e task-clock -c 10000 --filter 'ip < 0xffffffff00000000'

   - Improve the way the task_analyzer test checks if libtraceevent is
     linked, using 'perf version --build-options' instead of the more
     expensinve 'perf record -e "sched:sched_switch"'.

   - Add support for riscv in the mmap-basic test. (This went as well
     via the RiscV tree, same contents).

  libperf:

   - Implement riscv mmap support (This went as well via the RiscV tree,
     same contents).

  perf script:

   - New tool that converts perf.data files to the firefox profiler
     format so that one can use the visualizer at
     https://profiler.firefox.com/. Done by Anup Sharma as part of this
     year's Google Summer of Code.

     One can generate the output and upload it to the web interface but
     Anup also automated everything:

       perf script gecko -F 99 -a sleep 60

   - Support syscall name parsing on arm64.

   - Print "cgroup" field on the same line as "comm".

  perf bench:

   - Add new 'uprobe' benchmark to measure the overhead of uprobes
     with/without BPF programs attached to it.

   - breakpoints are not available on power9, skip that test.

  perf stat:

   - Add #num_cpus_online literal to be used in 'perf stat' metrics, and
     add this extra 'perf test' check that exemplifies its purpose:

  	TEST_ASSERT_VAL("#num_cpus_online",
                         expr__parse(&num_cpus_online, ctx, "#num_cpus_online") == 0);
  	TEST_ASSERT_VAL("#num_cpus", expr__parse(&num_cpus, ctx, "#num_cpus") == 0);
  	TEST_ASSERT_VAL("#num_cpus >= #num_cpus_online", num_cpus >= num_cpus_online);

  Miscellaneous:

   - Improve tool startup time by lazily reading PMU, JSON, sysfs data.

   - Improve error reporting in the parsing of events, passing YYLTYPE
     to error routines, so that the output can show were the parsing
     error was found.

   - Add 'perf test' entries to check the parsing of events
     improvements.

   - Fix various leak for things detected by -fsanitize=address, mostly
     things that would be freed at tool exit, including:

       - Free evsel->filter on the destructor.

       - Allow tools to register a thread->priv destructor and use it in
         'perf trace'.

       - Free evsel->priv in 'perf trace'.

       - Free string returned by synthesize_perf_probe_point() when the
         caller fails to do all it needs.

   - Adjust various compiler options to not consider errors some
     warnings when building with broken headers found in things like
     python, flex, bison, as we otherwise build with -Werror. Some for
     gcc, some for clang, some for some specific version of those, some
     for some specific version of flex or bison, or some specific
     combination of these components, bah.

   - Allow customization of clang options for BPF target, this helps
     building on gentoo where there are other oddities where BPF targets
     gets passed some compiler options intended for the native build, so
     building with WERROR=0 helps while these oddities are fixed.

   - Dont pass ERR_PTR() values to perf_session__delete() in 'perf top'
     and 'perf lock', fixing some segfaults when handling some odd
     failures.

   - Add LTO build option.

   - Fix format of unordered lists in the perf docs
     (tools/perf/Documentation)

   - Overhaul the bison files, using constructs such as YYNOMEM.

   - Remove unused tokens from the bison .y files.

   - Add more comments to various structs.

   - A few LoongArch enablement patches.

  Vendor events (JSON):

   - Add JSON metrics for Yitian 710 DDR (aarch64). Things like:

  	EventName, BriefDescription
  	visible_window_limit_reached_rd, "At least one entry in read queue reaches the visible window limit.",
  	visible_window_limit_reached_wr, "At least one entry in write queue reaches the visible window limit.",
  	op_is_dqsosc_mpc	       , "A DQS Oscillator MPC command to DRAM.",
  	op_is_dqsosc_mrr	       , "A DQS Oscillator MRR command to DRAM.",
  	op_is_tcr_mrr		       , "A Temperature Compensated Refresh(TCR) MRR command to DRAM.",

   - Add AmpereOne metrics (aarch64).

   - Update N2 and V2 metrics (aarch64) and events using Arm telemetry
     repo.

   - Update scale units and descriptions of common topdown metrics on
     aarch64. Things like:
       - "MetricExpr": "stall_slot_frontend / (#slots * cpu_cycles)",
       - "BriefDescription": "Frontend bound L1 topdown metric",
       + "MetricExpr": "100 * (stall_slot_frontend / (#slots * cpu_cycles))",
       + "BriefDescription": "This metric is the percentage of total slots that were stalled due to resource constraints in the frontend of the processor.",

   - Update events for intel: meteorlake to 1.04, sapphirerapids to
     1.15, Icelake+ metric constraints.

   - Update files for the power10 platform"

* tag 'perf-tools-for-v6.6-1-2023-09-05' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (217 commits)
  perf parse-events: Fix driver config term
  perf parse-events: Fixes relating to no_value terms
  perf parse-events: Fix propagation of term's no_value when cloning
  perf parse-events: Name the two term enums
  perf list: Don't print Unit for "default_core"
  perf vendor events intel: Fix modifier in tma_info_system_mem_parallel_reads for skylake
  perf dlfilter: Avoid leak in v0 API test use of resolve_address()
  perf metric: Add #num_cpus_online literal
  perf pmu: Remove str from perf_pmu_alias
  perf parse-events: Make common term list to strbuf helper
  perf parse-events: Minor help message improvements
  perf pmu: Avoid uninitialized use of alias->str
  perf jevents: Use "default_core" for events with no Unit
  perf test stat_bpf_counters_cgrp: Enhance perf stat cgroup BPF counter test
  perf test shell stat_bpf_counters: Fix test on Intel
  perf test shell record_bpf_filter: Skip 6.2 kernel
  libperf: Get rid of attr.id field
  perf tools: Convert to perf_record_header_attr_id()
  libperf: Add perf_record_header_attr_id()
  perf tools: Handle old data in PERF_RECORD_ATTR
  ...
      535a265d
    • Linus Torvalds's avatar
      Merge tag '6.6-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6 · fd3a5940
      Linus Torvalds authored 
      Pull smb client fixes from Steve French:

 - six smb3 client fixes including ones to allow controlling smb3
   directory caching timeout and limits, and one debugging improvement

 - one fix for nls Kconfig (don't need to expose NLS_UCS2_UTILS option)

 - one minor spnego registry update

* tag '6.6-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
  spnego: add missing OID to oid registry
  smb3: fix minor typo in SMB2_GLOBAL_CAP_LARGE_MTU
  cifs: update internal module version number for cifs.ko
  smb3: allow controlling maximum number of cached directories
  smb3: add trace point for queryfs (statfs)
  nls: Hide new NLS_UCS2_UTILS
  smb3: allow controlling length of time directory entries are cached with dir leases
  smb: propagate error code of extract_sharename()
      fd3a5940
  9. 09 Sep, 2023 13 commits
    • David Howells's avatar
      iov_iter: Kunit tests for page extraction · a3c57ab7
      David Howells authored 
      Add some kunit tests for page extraction for ITER_BVEC, ITER_KVEC and
ITER_XARRAY type iterators.  ITER_UBUF and ITER_IOVEC aren't dealt with
as they require userspace VM interaction.  ITER_DISCARD isn't dealt with
either as that can't be extracted.
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Hildenbrand <david@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      a3c57ab7
    • David Howells's avatar
      iov_iter: Kunit tests for copying to/from an iterator · 2d71340f
      David Howells authored 
      Add some kunit tests for page extraction for ITER_BVEC, ITER_KVEC and
ITER_XARRAY type iterators.  ITER_UBUF and ITER_IOVEC aren't dealt with
as they require userspace VM interaction.  ITER_DISCARD isn't dealt with
either as that does nothing.
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Hildenbrand <david@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      2d71340f
    • David Howells's avatar
      iov_iter: Fix iov_iter_extract_pages() with zero-sized entries · f741bd71
      David Howells authored 
      iov_iter_extract_pages() doesn't correctly handle skipping over initial
zero-length entries in ITER_KVEC and ITER_BVEC-type iterators.

The problem is that it accidentally reduces maxsize to 0 when it
skipping and thus runs to the end of the array and returns 0.

Fix this by sticking the calculated size-to-copy in a new variable
rather than back in maxsize.

Fixes: 7d58fe73 ("iov_iter: Add a function to extract a page list from an iterator")
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Hildenbrand <david@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      f741bd71
    • Linus Torvalds's avatar
      Merge tag 'sh-for-v6.6-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux · 6b8bb5b8
      Linus Torvalds authored 
      Pull sh updates from Adrian Glaubitz:

 - Fix a use-after-free bug in the push-switch driver (Duoming Zhou)

 - Fix calls to dma_declare_coherent_memory() that incorrectly passed
   the buffer end address instead of the buffer size as the size
   parameter

* tag 'sh-for-v6.6-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux:
  sh: push-switch: Reorder cleanup operations to avoid use-after-free bug
  sh: boards: Fix CEU buffer size passed to dma_declare_coherent_memory()
      6b8bb5b8
    • Linus Torvalds's avatar
      Merge tag 'riscv-for-linus-6.6-mw2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux · 1b37a0a2
      Linus Torvalds authored 
      Pull more RISC-V updates from Palmer Dabbelt:

 - The kernel now dynamically probes for misaligned access speed, as
   opposed to relying on a table of known implementations.

 - Support for non-coherent devices on systems using the Andes AX45MP
   core, including the RZ/Five SoCs.

 - Support for the V extension in ptrace(), again.

 - Support for KASLR.

 - Support for the BPF prog pack allocator in RISC-V.

 - A handful of bug fixes and cleanups.

* tag 'riscv-for-linus-6.6-mw2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (25 commits)
  soc: renesas: Kconfig: For ARCH_R9A07G043 select the required configs if dependencies are met
  riscv: Kconfig.errata: Add dependency for RISCV_SBI in ERRATA_ANDES config
  riscv: Kconfig.errata: Drop dependency for MMU in ERRATA_ANDES_CMO config
  riscv: Kconfig: Select DMA_DIRECT_REMAP only if MMU is enabled
  bpf, riscv: use prog pack allocator in the BPF JIT
  riscv: implement a memset like function for text
  riscv: extend patch_text_nosync() for multiple pages
  bpf: make bpf_prog_pack allocator portable
  riscv: libstub: Implement KASLR by using generic functions
  libstub: Fix compilation warning for rv32
  arm64: libstub: Move KASLR handling functions to kaslr.c
  riscv: Dump out kernel offset information on panic
  riscv: Introduce virtual kernel mapping KASLR
  RISC-V: Add ptrace support for vectors
  soc: renesas: Kconfig: Select the required configs for RZ/Five SoC
  cache: Add L2 cache management for Andes AX45MP RISC-V core
  dt-bindings: cache: andestech,ax45mp-cache: Add DT binding documentation for L2 cache controller
  riscv: mm: dma-noncoherent: nonstandard cache operations support
  riscv: errata: Add Andes alternative ports
  riscv: asm: vendorid_list: Add Andes Technology to the vendors list
  ...
      1b37a0a2
    • Duoming Zhou's avatar
      sh: push-switch: Reorder cleanup operations to avoid use-after-free bug · 246f80a0
      Duoming Zhou authored 
      The original code puts flush_work() before timer_shutdown_sync()
in switch_drv_remove(). Although we use flush_work() to stop
the worker, it could be rescheduled in switch_timer(). As a result,
a use-after-free bug can occur. The details are shown below:

      (cpu 0)                    |      (cpu 1)
switch_drv_remove()              |
 flush_work()                    |
  ...                            |  switch_timer // timer
                                 |   schedule_work(&psw->work)
 timer_shutdown_sync()           |
 ...                             |  switch_work_handler // worker
 kfree(psw) // free              |
                                 |   psw->state = 0 // use

This patch puts timer_shutdown_sync() before flush_work() to
mitigate the bugs. As a result, the worker and timer will be
stopped safely before the deallocate operations.

Fixes: 9f5e8eee ("sh: generic push-switch framework.")
Signed-off-by: default avatarDuoming Zhou <duoming@zju.edu.cn>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: default avatarJohn Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://lore.kernel.org/r/20230802033737.9738-1-duoming@zju.edu.cnSigned-off-by: default avatarJohn Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
      246f80a0
    • Petr Tesarik's avatar
      sh: boards: Fix CEU buffer size passed to dma_declare_coherent_memory() · fb60211f
      Petr Tesarik authored 
      In all these cases, the last argument to dma_declare_coherent_memory() is
the buffer end address, but the expected value should be the size of the
reserved region.

Fixes: 39fb9930 ("media: arch: sh: ap325rxa: Use new renesas-ceu camera driver")
Fixes: c2f9b05f ("media: arch: sh: ecovec: Use new renesas-ceu camera driver")
Fixes: f3590dc3 ("media: arch: sh: kfr2r09: Use new renesas-ceu camera driver")
Fixes: 186c446f ("media: arch: sh: migor: Use new renesas-ceu camera driver")
Fixes: 1a3c230b ("media: arch: sh: ms7724se: Use new renesas-ceu camera driver")
Signed-off-by: default avatarPetr Tesarik <petr.tesarik.ext@huawei.com>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: default avatarJacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: default avatarJohn Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20230724120742.2187-1-petrtesarik@huaweicloud.comSigned-off-by: default avatarJohn Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
      fb60211f
    • Linus Torvalds's avatar
      Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 2a5a4326
      Linus Torvalds authored 
      Pull more SCSI updates from James Bottomley:
 "Mostly small stragglers that missed the initial merge.

  Driver updates are qla2xxx and smartpqi (mp3sas has a high diffstat
  due to the volatile qualifier removal, fnic due to unused function
  removal and sd.c has a lot of code shuffling to remove forward
  declarations)"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (38 commits)
  scsi: ufs: core: No need to update UPIU.header.flags and lun in advanced RPMB handler
  scsi: ufs: core: Add advanced RPMB support where UFSHCI 4.0 does not support EHS length in UTRD
  scsi: mpt3sas: Remove volatile qualifier
  scsi: mpt3sas: Perform additional retries if doorbell read returns 0
  scsi: libsas: Simplify sas_queue_reset() and remove unused code
  scsi: ufs: Fix the build for the old ARM OABI
  scsi: qla2xxx: Fix unused variable warning in qla2xxx_process_purls_pkt()
  scsi: fnic: Remove unused functions fnic_scsi_host_start/end_tag()
  scsi: qla2xxx: Fix spelling mistake "tranport" -> "transport"
  scsi: fnic: Replace sgreset tag with max_tag_id
  scsi: qla2xxx: Remove unused variables in qla24xx_build_scsi_type_6_iocbs()
  scsi: qla2xxx: Fix nvme_fc_rcv_ls_req() undefined error
  scsi: smartpqi: Change driver version to 2.1.24-046
  scsi: smartpqi: Enhance error messages
  scsi: smartpqi: Enhance controller offline notification
  scsi: smartpqi: Enhance shutdown notification
  scsi: smartpqi: Simplify lun_number assignment
  scsi: smartpqi: Rename pciinfo to pci_info
  scsi: smartpqi: Rename MACRO to clarify purpose
  scsi: smartpqi: Add abort handler
  ...
      2a5a4326
    • Linus Torvalds's avatar
      Merge tag 'driver-core-6.6-rc1-2' of... · 6b41fb27
      Linus Torvalds authored 
      Merge tag 'driver-core-6.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver symbol lookup fix from Greg KH:
 "Here is one last fixup for your tree for 6.6-rc1. It resolves a
  problem with the way that symbol_get was changed in the module tree
  merge in your tree to fix up the DVB drivers which rely on this old
  api to attach new devices.

  As the changelog comment says:

    In commit 9011e49d ("modules: only allow symbol_get of
    EXPORT_SYMBOL_GPL modules") the use of symbol_get is properly
    restricted to GPL-only marked symbols. This interacts oddly with the
    DVB logic which only uses dvb_attach() to load the dvb driver which
    then uses symbol_get().

    Fix this up by properly marking all of the dvb_attach attach symbols
    as EXPORT_SYMBOL_GPL().

  This has been acked by Hans from the V4L driver side, Luis from the
  module side, Mauro on the media side, and Christoph said it was the
  correct solution, and was tested by the original reporter of the
  issue.

  It has passed 0-day testing, but has not been in linux-next due to it
  only being sent yesterday"

* tag 'driver-core-6.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  media: dvb: symbol fixup for dvb_attach()
      6b41fb27
    • Linus Torvalds's avatar
      Merge tag 'dma-mapping-6.6-2023-09-09' of git://git.infradead.org/users/hch/dma-mapping · 474197a4
      Linus Torvalds authored 
      Pull dma-mapping fixes from Christoph Hellwig:

 - move a dma-debug call that prints a message out from a lock that's
   causing problems with the lock order in serial drivers (Sergey
   Senozhatsky)

 - fix the CONFIG_DMA_NUMA_CMA Kconfig entry to have the right
   dependency and not default to y (Christoph Hellwig)

 - move an ifdef a bit to remove a __maybe_unused that seems to trip up
   some sensitivities (Christoph Hellwig)

 - revert a bogus check in the CMA allocator (Zhenhua Huang)

* tag 'dma-mapping-6.6-2023-09-09' of git://git.infradead.org/users/hch/dma-mapping:
  Revert "dma-contiguous: check for memory region overlap"
  dma-pool: remove a __maybe_unused label in atomic_pool_expand
  dma-contiguous: fix the Kconfig entry for CONFIG_DMA_NUMA_CMA
  dma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock
      474197a4
    • Linus Torvalds's avatar
      Merge tag 'pci-v6.6-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci · 060249b5
      Linus Torvalds authored 
      Pull PCI fixes from Bjorn Helgaas:

 - Add PCI_DYNAMIC_OF_NODES dependency on OF_IRQ to fix sparc64 build
   error (Lizhi Hou)

 - After coalescing host bridge resources, free any released resources
   to avoid a leak (Ross Lagerwall)

 - Revert a quirk that prevented NVIDIA T4 GPUs from using Secondary Bus
   Reset. The quirk worked around an issue that we now think is related
   to the Root Port, not the GPU (Bjorn Helgaas)

* tag 'pci-v6.6-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
  Revert "PCI: Mark NVIDIA T4 GPUs to avoid bus reset"
  PCI: Free released resource after coalescing
  PCI: Fix CONFIG_PCI_DYNAMIC_OF_NODES kconfig dependencies
      060249b5
    • Linus Torvalds's avatar
      Merge tag 'ntb-6.6' of https://github.com/jonmason/ntb · fa9d4bf5
      Linus Torvalds authored 
      Pull NTB updates from Jon Mason:
 "Link toggling fixes and debugfs error path fixes"

[ And for everybody like me who always have to remind themselves what
  the TLA of the day is, and what NTB stands for - it's a PCIe
  "Non-Transparent Bridge" thing    - Linus ]

* tag 'ntb-6.6' of https://github.com/jonmason/ntb:
  ntb: Check tx descriptors outstanding instead of head/tail for tx queue
  ntb: Fix calculation ntb_transport_tx_free_entry()
  ntb: Drop packets when qp link is down
  ntb: Clean up tx tail index on link down
  ntb: amd: Drop unnecessary error check for debugfs_create_dir
  NTB: ntb_tool: Switch to memdup_user_nul() helper
  dtivers: ntb: fix parameter check in perf_setup_dbgfs()
  ntb: Remove error checking for debugfs_create_dir()
      fa9d4bf5
    • Steve French's avatar
      spnego: add missing OID to oid registry · 5d153cd1
      Steve French authored 
      Add missing OID to the registry. Some servers and clients (including
Windows) now request "NEGOEX - SPNEGEO Extended Negotiation Security")

See https://datatracker.ietf.org/doc/html/draft-zhu-negoex-02Reviewed-by: default avatarNamjae Jeon <linkinjeon@kernel.org>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
      5d153cd1
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7