diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/perf/arm_smmuv3_pmu.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c index d5fa92ba8373..621f02a7f43b 100644 --- a/drivers/perf/arm_smmuv3_pmu.c +++ b/drivers/perf/arm_smmuv3_pmu.c @@ -431,6 +431,17 @@ static int smmu_pmu_event_init(struct perf_event *event) return -EINVAL; } + /* + * Ensure all events are on the same cpu so all events are in the + * same cpu context, to avoid races on pmu_enable etc. + */ + event->cpu = smmu_pmu->on_cpu; + + hwc->idx = -1; + + if (event->group_leader == event) + return 0; + for_each_sibling_event(sibling, event->group_leader) { if (is_software_event(sibling)) continue; @@ -442,14 +453,6 @@ static int smmu_pmu_event_init(struct perf_event *event) return -EINVAL; } - hwc->idx = -1; - - /* - * Ensure all events are on the same cpu so all events are in the - * same cpu context, to avoid races on pmu_enable etc. - */ - event->cpu = smmu_pmu->on_cpu; - return 0; } @@ -996,7 +999,7 @@ static struct platform_driver smmu_pmu_driver = { .suppress_bind_attrs = true, }, .probe = smmu_pmu_probe, - .remove_new = smmu_pmu_remove, + .remove = smmu_pmu_remove, .shutdown = smmu_pmu_shutdown, }; |