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| author | James Clark <james.clark@arm.com> | 2023-01-20 17:36:54 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-01-23 00:17:27 +0300 |
| commit | f8ad6018ce3c065a706b187cdc4520975969660e (patch) | |
| tree | 0049a4248bc74e7c6009a435557836313d918d9f /tools/perf/arch/arm64 | |
| parent | 4cbd5334ff1390444644e82b5aed1e3288798e50 (diff) | |
| download | linux-f8ad6018ce3c065a706b187cdc4520975969660e.tar.xz | |
perf pmu: Remove duplication around EVENT_SOURCE_DEVICE_PATH
The pattern for accessing EVENT_SOURCE_DEVICE_PATH is duplicated in a
few places, so add two utility functions to cover it. Also just use
perf_pmu__scan_file() instead of pmu_type() which already does the same
thing.
No functional changes.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Suzuki Poulouse <suzuki.poulose@arm.com>
Tested-by: Tanmay Jagdale <tanmay@marvell.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Bharat Bhushan <bbhushan2@marvell.com>
Cc: George Cherian <gcherian@marvell.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Linu Cherian <lcherian@marvell.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: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230120143702.4035046-2-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/arch/arm64')
| -rw-r--r-- | tools/perf/arch/arm64/util/pmu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/arch/arm64/util/pmu.c b/tools/perf/arch/arm64/util/pmu.c index 9e674cac5a73..801bf52e2ea6 100644 --- a/tools/perf/arch/arm64/util/pmu.c +++ b/tools/perf/arch/arm64/util/pmu.c @@ -44,8 +44,8 @@ double perf_pmu__cpu_slots_per_cycle(void) struct perf_pmu *pmu = pmu__find_core_pmu(); if (pmu) { - scnprintf(path, PATH_MAX, - EVENT_SOURCE_DEVICE_PATH "%s/caps/slots", pmu->name); + perf_pmu__pathname_scnprintf(path, sizeof(path), + pmu->name, "caps/slots"); /* * The value of slots is not greater than 32 bits, but sysfs__read_int * can't read value with 0x prefix, so use sysfs__read_ull instead. |