[RFC PATCH bpf-next] libbpf: remove sample_period init in perf_buffer

Tao Chen
2025-04-22T09:17:11Z

It seems that sample_period no used in perf buffer, actually only
wakeup_events valid about events aggregation for wakeup. So remove
it to avoid causing confusion.

Fixes: fb84b8224655 ("libbpf: add perf buffer API")
Signed-off-by: Tao Chen <chen.dylane@linux.dev>
---
tools/lib/bpf/libbpf.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 194809da5172..1830e3c011a5 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -13306,7 +13306,6 @@ struct perf_buffer *perf_buffer__new(int map_fd, size_t page_cnt,
attr.config = PERF_COUNT_SW_BPF_OUTPUT;
attr.type = PERF_TYPE_SOFTWARE;
attr.sample_type = PERF_SAMPLE_RAW;
- attr.sample_period = sample_period;
attr.wakeup_events = sample_period;

p.attr = &attr;
--
2.43.0