[PATCH 1/4] perf: Fix wrong comment about default event_idx

Alexandre Ghiti
2023-04-13T16:19:21Z

event_idx default implementation returns 0, not idx + 1.

Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
---
include/linux/perf_event.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index d5628a7b5eaa..56fe43b20966 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -442,7 +442,8 @@ struct pmu {

/*
* Will return the value for perf_event_mmap_page::index for this event,
- * if no implementation is provided it will default to: event->hw.idx + 1.
+ * if no implementation is provided it will default to 0 (see
+ * perf_event_idx_default).
*/
int (*event_idx) (struct perf_event *event); /*optional */

--
2.37.2