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As far as I can tell, there is no good reason, apart from optimization
to have the retry_sample_id separate from fallback_missing_features.
Probably, this label was added to avoid reapplying patches for missing
features that had already been applied.
However, missing features that have been added later have not used this
optimization, always jumping to fallback_missing_features and reapplying
all missing features.
This patch removes that label, replacing it with
fallback_missing_features.
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/340af0d03408d6621fd9c742e311db18b3585b3b.1629490974.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
MMAP_CPU_MASK_BYTES uses the BITS_TO_LONGS macro, which is defined in
linux/bitops.h.
However, this header is not included directly, but gets imported
indirectly in files using the macro.
This patch adds the missing include.
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/c5b91ee432a2e28e7f16337c740b43b4d0b0e86c.1629490974.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
From commit 7074674e7338863e ("perf cpumap: Maintain cpumaps ordered and
without dups"), perf_cpu_map elements are sorted in ascending order.
This patch improves the perf_cpu_map__max function by returning the last
element.
Committer notes:
Do it as a ternary to keep it in just one return line, add a comment
explaining it is sorted and what functions does it.
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/fb79f02e7b86ea8044d563adb1e9890c906f982f.1629490974.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This patch adds OPT_UINTEGER_OPTARG, which is the same as OPT_UINTEGER,
but also makes it possible to use the option without any value, setting
the variable to a default value, d.
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/c46749b3dff796729078352ff164d363457a3587.1629490974.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
A CI system might want to run all tests in verbose mode so that there is
enough information to diagnose issues. This LLVM test is the only test
that uses "-v" to signify to not skip the test if the preconditions
aren't met (LLVM isn't installed). This means that running the test in
verbose mode without LLVM installed causes a test failure.
For consistency with the other tests, remove this verbose/skip check. An
alternate solution would be to make _all_ tests not skip when run in
verbose mode, but I don't think that would be intuitive.
Also change the search_program() call to search_program_and_warn().
Previously the hint about installing LLVM was only printed by the actual
test because this check was skipped in verbose mode. To maintain the old
behaviour, the precondition check must also print the full warning.
Previous output:
$ ./perf test llvm
40: LLVM search and compile :
40.1: Basic BPF llvm compile : Skip
$ ./perf test -v llvm
40: LLVM search and compile :
40.1: Basic BPF llvm compile :
--- start ---
test child forked, pid 2085835
ERROR: unable to find clang.
Hint: Try to install latest clang/llvm to support BPF. Check your $PATH
...
test child finished with -1
---- end ----
LLVM search and compile subtest 1: FAILED!
New output (non verbose mode is identical, verbose changes from fail to
skip):
$ ./perf test llvm
40: LLVM search and compile :
40.1: Basic BPF llvm compile : Skip
$ ./perf test -v llvm
40: LLVM search and compile :
40.1: Basic BPF llvm compile :
--- start ---
test child forked, pid 2087680
ERROR: unable to find clang.
Hint: Try to install latest clang/llvm to support BPF. Check your $PATH
...
No clang, skip this test
test child finished with -2
---- end ----
LLVM search and compile subtest 1: Skip
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: clang-built-linux@googlegroups.com
Link: http://lore.kernel.org/lkml/20210831145501.2135754-2-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The same warning is duplicated in two places so refactor it into a
single function "search_program_and_warn". This will be used a third
time in a later commit.
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: clang-built-linux@googlegroups.com
Link: http://lore.kernel.org/lkml/20210831145501.2135754-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
When the tool runs with compat mode on Arm platform, the kernel is in
64-bit mode and user space is in 32-bit mode; the user space can use
instructions "ldrd" and "strd" for 64-bit value atomicity.
This patch adds compat_auxtrace_mmap__{read_head|write_tail} for arm
building, it uses "ldrd" and "strd" instructions to ensure accessing
atomicity for aux head and tail. The file arch/arm/util/auxtrace.c is
built for arm and arm64 building, these two functions are not needed for
arm64, so check the compiler macro "__arm__" to only include them for
arm building.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: James Clark <james.clark@arm.com>
Tested-by: James Clark <james.clark@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Russell King (oracle)" <linux@armlinux.org.uk>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20210829102238.19693-3-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
When perf runs in compat mode (kernel in 64-bit mode and the perf is in
32-bit mode), the 64-bit value atomicity in the user space cannot be
assured, E.g. on some architectures, the 64-bit value accessing is split
into two instructions, one is for the low 32-bit word accessing and
another is for the high 32-bit word.
This patch introduces weak functions compat_auxtrace_mmap__read_head()
and compat_auxtrace_mmap__write_tail(), as their naming indicates, when
perf tool works in compat mode, it uses these two functions to access
the AUX head and tail. These two functions can allow the perf tool to
work properly in certain conditions, e.g. when perf tool works in
snapshot mode with only using AUX head pointer, or perf tool uses the
AUX buffer and the incremented tail is not bigger than 4GB.
When perf tool cannot handle the case when the AUX tail is bigger than
4GB, the function compat_auxtrace_mmap__write_tail() returns -1 and
tells the caller to bail out for the error.
These two functions are declared as weak attribute, this allows to
implement arch specific functions if any arch can support the 64-bit
value atomicity in compat mode.
Suggested-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Russell King (oracle)" <linux@armlinux.org.uk>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20210829102238.19693-2-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
BTF needs to be freed with btf__free().
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210826184833.408563-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
There is currently only 1 'perf data' command, but supporting extra
commands was breaking the help output. Simplify for now so that the help
output is correct.
Before:
$ perf data -h
Usage: perf data [<common options>] <command> [<options>]
$ perf data
Usage:
perf data [<common options>] <command> [<options>]
Available commands:
convert - converts data file between formats
After:
$ perf data
Usage: perf data convert [<options>]
-f, --force don't complain, do it
-i, --input <file> input file name
-v, --verbose be more verbose
--all Convert all events
--to-ctf ... Convert to CTF format
--to-json ... Convert to JSON format
--tod Convert time to wall clock time
$ perf data -h
Usage: perf data convert [<options>]
-f, --force don't complain, do it
-i, --input <file> input file name
-v, --verbose be more verbose
--all Convert all events
--to-ctf ... Convert to CTF format
--to-json ... Convert to JSON format
--tod Convert time to wall clock time
Signed-off-by: Joshua Martinez <joshuamart@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210824205829.52822-1-irogers@google.com
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
There is a spelling mistake in a warning message. Fix it.
Signed-off-by: Colin King <colin.king@canonical.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: kernel-janitors@vger.kernel.org
Link: http://lore.kernel.org/lkml/20210826121801.13281-1-colin.king@canonical.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Such as cross building on Android, so just add EXTRA_CFLAGS to the
dlfilters rules as it is where --sysroot= has been specified.
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/YS1JwIMTNNWcbGdT@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* display perf.data header
* display PIDs of user stacks
* added option to change color scheme
* default to blue/green color scheme to improve accessibility
* correctly identify kernel stacks when kernel-debuginfo is installed
Signed-off-by: Andreas Gerstmayr <agerstmayr@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210830164729.116049-1-agerstmayr@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Stephane found that the name of the forked process in a system-wide
mode is wrong when --delay option is used. For example,
# perf record -a --delay=1000 noploop 3
The noploop process will run a busy loop for 3 second. And on an idle
machine it should show up at the top in the perf report. It works
well without the --delay option. But if I add the option, it showed
'perf' not 'noploop'.
# perf report -s comm -q | head -3
52.94% perf
16.65% swapper
12.04% chrome
It turned out that the dummy event didn't work at all and it missed
COMM and MMAP events for the noploop process (and others too). We
should enable the dummy event immediately in system-wide mode, as the
enable-on-exec would work only for task events.
With this change,
# perf report -s comm -q | head -3
52.75% noploop
17.03% swapper
12.83% chrome
Reported-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210827233212.3121037-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The cgroup mode should work with cpu events. Warn if --for-each-cgroup
option is used with a task target like existing -G option.
# perf stat --for-each-cgroup . sleep 1
both cgroup and no-aggregation modes only available in system-wide mode
Usage: perf stat [<options>] [<command>]
-G, --cgroup <name> monitor event in cgroup name only
-A, --no-aggr disable CPU count aggregation
-a, --all-cpus system-wide collection from all CPUs
--for-each-cgroup <name>
expand events for each cgroup
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210830170200.55652-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
73 9.00 ubuntu:18.04-x-powerpc : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
bench/evlist-open-close.c: In function 'bench_evlist_open_close__run':
bench/evlist-open-close.c:173:12: error: format '%ld' expects argument of type 'long int', but argument 5 has type 'u64 {aka long long unsigned int}' [-Werror=format=]
pr_debug("Iteration %d took:\t%ldus\n", i, runtime_us);
^
bench/../util/debug.h:18:21: note: in definition of macro 'pr_fmt'
#define pr_fmt(fmt) fmt
^~~
bench/evlist-open-close.c:173:3: note: in expansion of macro 'pr_debug'
pr_debug("Iteration %d took:\t%ldus\n", i, runtime_us);
^~~~~~~~
cc1: all warnings being treated as errors
/git/perf-5.14.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
Cc: Riccardo Mancini <rickyman7@gmail.com>
Fixes: 4241eabf59d5b7e9 ("perf bench: Add benchmark for evlist open/close operations")
Link: http://lore.kernel.org/lkml/YS0oTcA9Zuy8Wjm9@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The commit 4d6101f5fd5d9960 ("perf probe: Clarify error message about
not finding kernel modules debuginfo") changed the error message "Failed
to find the path for kernel" to "Failed to find the path for the
kernel".
Update the regex so that the tests still skip rather than fail when
kernel debug symbols aren't present.
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Link: http://lore.kernel.org/lkml/20210825164259.833222-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The build on fedora:35 and fedora:rawhide with clang is failing with:
49 41.00 fedora:35 : FAIL clang version 13.0.0 (Fedora 13.0.0~rc1-1.fc35)
bench/inject-buildid.c:351:6: error: variable 'len' set but not used [-Werror,-Wunused-but-set-variable]
u64 len = 0;
^
1 error generated.
make[3]: *** [/git/perf-5.14.0-rc7/tools/build/Makefile.build:139: bench] Error 2
50 41.11 fedora:rawhide : FAIL clang version 13.0.0 (Fedora 13.0.0~rc1-1.fc35)
bench/inject-buildid.c:351:6: error: variable 'len' set but not used [-Werror,-Wunused-but-set-variable]
u64 len = 0;
^
1 error generated.
make[3]: *** [/git/perf-5.14.0-rc7/tools/build/Makefile.build:139: bench] Error 2
That 'len' variable is not used at all, so just make sure all the
synthesize_RECORD() routines return ssize_t to propagate the writen()
return, as it may fail, ditch the 'ret' var and bail out if those
routines fail.
Fixes: 0bf02a0d80427f26 ("perf bench: Add build-id injection benchmark")
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/CAM9d7cgEZNSor+B+7Y2C+QYGme_v5aH0Zn0RLfxoQ+Fy83EHrg@mail.gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acaict, perf_home_perfconfig() is supposed to cache the result of
home_perfconfig, which returns the default location of perfconfig for
the user, given the HOME environment variable.
However, the current implementation calls home_perfconfig every time
perf_home_perfconfig() is called (so no caching is actually performed),
replacing the previous pointer, thus also causing a memory leak.
This patch adds a check of whether either config or failed is set and,
in that case, directly returns config without calling home_perfconfig at
each invocation.
Fixes: f5f03e19ce14fc31 ("perf config: Add perf_home_perfconfig function")
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Link: http://lore.kernel.org/lkml/20210820130817.740536-1-rickyman7@gmail.com
[ Removed needless double check for the 'failed' variable ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
strdup() prototype doesn't live in stdlib.h .
Add limits.h for PATH_MAX definition as well.
This fixes the build on Android.
Signed-off-by: Alexey Dobriyan (SK hynix) <adobriyan@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/YRukaQbrgDWhiwGr@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
thus avoid useless invocations of the migration thread
- Rework initialization flow so that all rq->core's are initialized,
even of CPUs which have not been onlined yet, so that iterating over
them all works as expected
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Merge tag 'sched_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:
- Have get_push_task() check whether current has migration disabled and
thus avoid useless invocations of the migration thread
- Rework initialization flow so that all rq->core's are initialized,
even of CPUs which have not been onlined yet, so that iterating over
them all works as expected
* tag 'sched_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Fix get_push_task() vs migrate_disable()
sched: Fix Core-wide rq->lock for uninitialized CPUs
masking should be done and thus make it usable on Xen-PV too
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Merge tag 'irq_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Borislav Petkov:
- Have msix_mask_all() check a global control which says whether MSI-X
masking should be done and thus make it usable on Xen-PV too
* tag 'irq_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
PCI/MSI: Skip masking MSI-X on Xen PV
- Mark AMD IBS as not supporting content exclusion
- Add a workaround for AMD erratum #1197 where IBS registers might
not be restored properly after exiting CC6 state
- Fix a potential truncation of a 32-bit variable due to shifting
- Read the correct bits describing the number of configurable address
ranges on Intel PT
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Merge tag 'perf_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- Prevent the amd/power module from being removed while in use
- Mark AMD IBS as not supporting content exclusion
- Add a workaround for AMD erratum #1197 where IBS registers might not
be restored properly after exiting CC6 state
- Fix a potential truncation of a 32-bit variable due to shifting
- Read the correct bits describing the number of configurable address
ranges on Intel PT
* tag 'perf_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/amd/power: Assign pmu.module
perf/x86/amd/ibs: Extend PERF_PMU_CAP_NO_EXCLUDE to IBS Op
perf/x86/amd/ibs: Work around erratum #1197
perf/x86/intel/uncore: Fix integer overflow on 23 bit left shift of a u32
perf/x86/intel/pt: Fix mask of num_address_ranges
- Restore the firmware's IDT when calling EFI boot services and before
ExitBootServices() has been called. This fixes a boot failure on what
appears to be a tablet with 32-bit UEFI running a 64-bit kernel.
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Merge tag 'x86_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Fix build error on RHEL where -Werror=maybe-uninitialized is set.
- Restore the firmware's IDT when calling EFI boot services and before
ExitBootServices() has been called. This fixes a boot failure on what
appears to be a tablet with 32-bit UEFI running a 64-bit kernel.
* tag 'x86_urgent_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/resctrl: Fix a maybe-uninitialized build warning treated as error
x86/efi: Restore Firmware IDT before calling ExitBootServices()
This reverts commit 83af58f8068ea3f7b3c537c37a30887bfa585069.
It turns out that at least the assembly implementation for strncpy() was
buggy. Revert the whole commit and return back to the default coding.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v5.4+
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The probe was manually passing NULL instead of dev to devm_clk_hw_register.
This caused a Unable to handle kernel NULL pointer dereference error.
Fix this by passing 'dev'.
Signed-off-by: Adam Ford <aford173@gmail.com>
Fixes: a20a40a8bbc2 ("clk: renesas: rcar-usb2-clock-sel: Fix error handling in .probe()")
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
A single fix for a race introduced by a fix that went up in 5.14-rc5.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fix from James Bottomley:
"A single fix for a race introduced by a fix that went into 5.14-rc5"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: core: Fix hang of freezing queue between blocking and running device
Here are a few tiny USB fixes for reported issues with some USB drivers.
These fixes include:
- gadget driver fixes for regressions
- tcpm driver fix
- dwc3 driver fixes
- xhci renesas firmware loading fix, again.
- usb serial option driver device id addition
- usb serial ch341 revert for regression
All all of these have been in linux-next with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a few tiny USB fixes for reported issues with some USB
drivers.
These fixes include:
- gadget driver fixes for regressions
- tcpm driver fix
- dwc3 driver fixes
- xhci renesas firmware loading fix, again.
- usb serial option driver device id addition
- usb serial ch341 revert for regression
All all of these have been in linux-next with no reported problems"
* tag 'usb-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: gadget: u_audio: fix race condition on endpoint stop
usb: gadget: f_uac2: fixup feedback endpoint stop
usb: typec: tcpm: Raise vdm_sm_running flag only when VDM SM is running
usb: renesas-xhci: Prefer firmware loading on unknown ROM state
usb: dwc3: gadget: Stop EP0 transfers during pullup disable
usb: dwc3: gadget: Fix dwc3_calc_trbs_left()
Revert "USB: serial: ch341: fix character loss at high transfer rates"
USB: serial: option: add new VID/PID to support Fibocom FG150
- Fix scv implicit soft-mask table for relocated (eg. kdump) kernels.
- Re-enable ARCH_ENABLE_SPLIT_PMD_PTLOCK, which was disabled due to a typo.
Thanks to: Lukas Bulwahn, Nicholas Piggin, Daniel Axtens.
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Merge tag 'powerpc-5.14-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix scv implicit soft-mask table for relocated (eg. kdump) kernels
- Re-enable ARCH_ENABLE_SPLIT_PMD_PTLOCK, which was disabled due to a
typo
Thanks to Lukas Bulwahn, Nicholas Piggin, and Daniel Axtens.
* tag 'powerpc-5.14-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s: Fix scv implicit soft-mask table for relocated kernels
powerpc: Re-enable ARCH_ENABLE_SPLIT_PMD_PTLOCK
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Merge tag 'block-5.14-2021-08-27' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- Revert the mq-deadline priority handling, it's causing serious
performance regressions. While experimental patches exists to fix
this up, it's too late to do so now. Revert it and re-do it properly
for 5.15 instead.
- Fix a NULL vs IS_ERR() regression in this release (Dan)
- Fix a mq-deadline accounting regression in this release (Bart)
- Mark cryptoloop as deprecated. It's broken and dm-crypt fully
supports it, and it's actively intefering with loop. Plan on removal
for 5.16 (Christoph)
* tag 'block-5.14-2021-08-27' of git://git.kernel.dk/linux-block:
cryptoloop: add a deprecation warning
pd: fix a NULL vs IS_ERR() check
Revert "block/mq-deadline: Prioritize high-priority requests"
mq-deadline: Fix request accounting
Just two trivial fixes from the reset driver tree, nothing else came up
since the last soc fixes.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'soc-fixes-5.14-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"Just two trivial fixes from the reset driver tree, nothing else came
up since the last soc fixes"
* tag 'soc-fixes-5.14-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
reset: reset-zynqmp: Fixed the argument data type
reset: RESET_MCHP_SPARX5 should depend on ARCH_SPARX5
Fix a regression introduced during this cycle that has been
partially addressed by an earlier commit (Andy Shevchenko).
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Merge tag 'acpi-5.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix a regression introduced during this cycle that has been partially
addressed by an earlier commit (Andy Shevchenko)"
* tag 'acpi-5.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
media: ipu3-cio2: Drop reference on error path in cio2_bridge_connect_sensor()
- Prevent the operating performance points (OPP) code from crashing
when some entries in the table of required OPPs are set to error
pointer values (Marijn Suijten).
- Prevent the generic power domains (genpd) framework from
incorrectly overriding the performance state of a device set
by its driver while it is runtime-suspended or when runtime
PM of it is disabled (Dmitry Osipenko).
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Merge tag 'pm-5.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix two issues introduced during this cycle, one of which is a
regression and the other one affects new code.
Specifics:
- Prevent the operating performance points (OPP) code from crashing
when some entries in the table of required OPPs are set to error
pointer values (Marijn Suijten)
- Prevent the generic power domains (genpd) framework from
incorrectly overriding the performance state of a device set by its
driver while it is runtime-suspended or when runtime PM of it is
disabled (Dmitry Osipenko)"
* tag 'pm-5.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: domains: Improve runtime PM performance state handling
opp: core: Check for pending links before reading required_opp pointers
virtio_mem_set_fake_offline() might sleep now, and we call it under
rcu_read_lock(). To fix it, simply move the rcu_read_unlock() further
up, as we're done with the device.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 6cc26d77613a: "virtio-mem: use page_offline_(start|end) when setting PageOffline()
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: virtualization@lists.linux-foundation.org
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* A pair of device tree updates for the Microsemi Polarfire development
kit that fix some mismatches between the u-boot and Linux enternet
entries.
* A fix to ensure that the F register state is correctly reflected in
core dumps.
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Merge tag 'riscv-for-linus-5.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- device tree updates for the Microsemi Polarfire development kit that
fix some mismatches between the u-boot and Linux enternet entries
- ensure that the F register state is correctly reflected in core dumps
* tag 'riscv-for-linus-5.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: dts: microchip: Add ethernet0 to the aliases node
riscv: dts: microchip: Use 'local-mac-address' for emac1
riscv: Ensure the value of FP registers in the core dump file is up to date
Support for cryptoloop has been officially marked broken and deprecated
in favor of dm-crypt (which supports the same broken algorithms if
needed) in Linux 2.6.4 (released in March 2004), and support for it has
been entirely removed from losetup in util-linux 2.23 (released in April
2013). Add a warning and a deprecation schedule.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210827163250.255325-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This reverts commit 419dd626e357e89fc9c4e3863592c8b38cfe1571.
It turned out that the change from the reverted commit breaks the ACPI
based rpi's because it causes the 100Mhz max clock to be overridden to the
return from sdhci_iproc_get_max_clock(), which is 0 because there isn't a
OF/DT based clock device.
Reported-by: Jeremy Linton <jeremy.linton@arm.com>
Fixes: 419dd626e357 ("mmc: sdhci-iproc: Set SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN on BCM2711")
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
If the endpoint completion callback is call right after the ep_enabled flag
is cleared and before usb_ep_dequeue() is call, we could do a double free
on the request and the associated buffer.
Fix this by clearing ep_enabled after all the endpoint requests have been
dequeued.
Fixes: 7de8681be2cd ("usb: gadget: u_audio: Free requests only after callback")
Cc: stable <stable@vger.kernel.org>
Reported-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20210827092927.366482-1-jbrunet@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When the uac2 function is stopped, there seems to be an issue reported on
some platforms (Intel Merrifield at least)
BUG: kernel NULL pointer dereference, address: 0000000000000008
...
RIP: 0010:dwc3_gadget_del_and_unmap_request+0x19/0xe0
...
Call Trace:
dwc3_remove_requests.constprop.0+0x12f/0x170
__dwc3_gadget_ep_disable+0x7a/0x160
dwc3_gadget_ep_disable+0x3d/0xd0
usb_ep_disable+0x1c/0x70
u_audio_stop_capture+0x79/0x120 [u_audio]
afunc_set_alt+0x73/0x80 [usb_f_uac2]
composite_setup+0x224/0x1b90 [libcomposite]
The issue happens only when the gadget is using the sync type "async", not
"adaptive". This indicates that problem is coming from the feedback
endpoint, which is only used with async synchronization mode.
The problem is that request is freed regardless of usb_ep_dequeue(), which
ends up badly if the request is not actually dequeued yet.
Update the feedback endpoint free function to release the endpoint the same
way it is done for the data endpoint, which takes care of the problem.
Fixes: 24f779dac8f3 ("usb: gadget: f_uac2/u_audio: add feedback endpoint support")
Reported-by: Ferry Toth <ftoth@exalondelft.nl>
Tested-by: Ferry Toth <ftoth@exalondelft.nl>
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20210827075853.266912-1-jbrunet@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
blk_mq_alloc_disk() returns error pointers, it doesn't return NULL
so correct the check.
Fixes: 262d431f9000 ("pd: use blk_mq_alloc_disk and blk_cleanup_disk")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210827100023.GB9449@kili
Signed-off-by: Jens Axboe <axboe@kernel.dk>
i915:
- Fix syncmap memory leak
- Drop redundant display port debug print
amdgpu:
- Fix for pinning display buffers multiple times
- Fix delayed work handling for GFXOFF
- Fix build when CONFIG_SUSPEND is not set
imx:
- fix planar offset calculations
- fix accidental partial revert
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Merge tag 'drm-fixes-2021-08-27' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Last set of fixes for 5.14, nothing major a couple of i915, couple of
imx and a few amdgpu. All pretty small.
i915:
- Fix syncmap memory leak
- Drop redundant display port debug print
amdgpu:
- Fix for pinning display buffers multiple times
- Fix delayed work handling for GFXOFF
- Fix build when CONFIG_SUSPEND is not set
imx:
- fix planar offset calculations
- fix accidental partial revert"
* tag 'drm-fixes-2021-08-27' of git://anongit.freedesktop.org/drm/drm:
drm/i915/dp: Drop redundant debug print
drm/i915: Fix syncmap memory leak
drm/amdgpu: Fix build with missing pm_suspend_target_state module export
drm/amdgpu: Cancel delayed work when GFXOFF is disabled
drm/amdgpu: use the preferred pin domain after the check
drm/imx: ipuv3-plane: fix accidental partial revert of 8 pixel alignment fix
gpu: ipu-v3: Fix i.MX IPU-v3 offset calculations for (semi)planar U/V formats
Fix an accidental partial revert of commit 94dfec48fca7 ("drm/imx: Add 8
pixel alignment fix") and plane offset calculations for capture of
non-aligned resolutions.
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Merge tag 'imx-drm-fixes-2021-08-18' of git://git.pengutronix.de/pza/linux into drm-fixes
drm/imx: imx-drm alignment and plane offset fixes
Fix an accidental partial revert of commit 94dfec48fca7 ("drm/imx: Add 8
pixel alignment fix") and plane offset calculations for capture of
non-aligned resolutions.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/85a41af99beb2c9e7d6020435a135bf9f205a5ff.camel@pengutronix.de
