armpmu_event_set_period
if (!armpmu_event_set_period(event))
armpmu_event_set_period(event);
if (!armpmu_event_set_period(event))
if (!armpmu_event_set_period(event))
if (!armpmu_event_set_period(event))
if (!armpmu_event_set_period(event))
if (!armpmu_event_set_period(event))
int armpmu_event_set_period(struct perf_event *event);