diff options
| author | Ian Rogers <irogers@google.com> | 2023-05-27 00:22:01 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-05-27 09:41:17 -0300 |
| commit | f24ebe8053514936d4e8cffb707af3a275fa32e5 (patch) | |
| tree | 6229e57b7d749a34443735efa364ada58fa0b9b5 /tools/perf/bench | |
| parent | 597a4276fb326163b90754ef7b2a550a6b2b4054 (diff) | |
perf pmus: Prefer perf_pmu__scan over perf_pmus__for_each_pmu
perf_pmus__for_each_pmu doesn't lazily initialize pmus making its use
error prone. Just use perf_pmu__scan as this only impacts
non-performance critical tests.
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Dmitrii Dolgov <9erthalion6@gmail.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kang Minchul <tegongkang@gmail.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Ming Wang <wangming01@loongson.cn>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230527072210.2900565-26-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/bench')
| -rw-r--r-- | tools/perf/bench/pmu-scan.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/tools/perf/bench/pmu-scan.c b/tools/perf/bench/pmu-scan.c index f0f007843bb8..f4a6c37cbe27 100644 --- a/tools/perf/bench/pmu-scan.c +++ b/tools/perf/bench/pmu-scan.c @@ -40,13 +40,11 @@ static struct pmu_scan_result *results; static int save_result(void) { - struct perf_pmu *pmu; + struct perf_pmu *pmu = NULL; struct list_head *list; struct pmu_scan_result *r; - perf_pmu__scan(NULL); - - perf_pmus__for_each_pmu(pmu) { + while ((pmu = perf_pmu__scan(pmu)) != NULL) { r = realloc(results, (nr_pmus + 1) * sizeof(*r)); if (r == NULL) return -ENOMEM; |