diff options
| -rw-r--r-- | tools/perf/util/pmu.c | 5 | ||||
| -rw-r--r-- | tools/perf/util/pmu.h | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 1dd44b2f73f3..4218b5235b3d 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -934,6 +934,11 @@ void perf_pmu__warn_invalid_formats(struct perf_pmu *pmu) { struct perf_pmu_format *format; + if (pmu->formats_checked) + return; + + pmu->formats_checked = true; + /* fake pmu doesn't have format list */ if (pmu == &perf_pmu__fake) return; diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index 13a9a893e665..c21872c0f328 100644 --- a/tools/perf/util/pmu.h +++ b/tools/perf/util/pmu.h @@ -77,6 +77,11 @@ struct perf_pmu { */ bool auxtrace; /** + * @formats_checked: Only check PMU's formats are valid for + * perf_event_attr once. + */ + bool formats_checked; + /** * @max_precise: Number of levels of :ppp precision supported by the * PMU, read from * <sysfs>/bus/event_source/devices/<name>/caps/max_precise. |