[PATCH bpf-next v6 06/14] selftests/bpf: fix race condition in enable_stats

[Yucong Sun <fallentree@xxxxxx>]

From: Yucong Sun <sunyucong@xxxxxxxxx>

In parallel execution mode, this test now need to use atomic operation
to avoid race condition.

Signed-off-by: Yucong Sun <sunyucong@xxxxxxxxx>
---
 tools/testing/selftests/bpf/progs/test_enable_stats.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/progs/test_enable_stats.c b/tools/testing/selftests/bpf/progs/test_enable_stats.c
index 01a002ade529..1705097d01d7 100644
--- a/tools/testing/selftests/bpf/progs/test_enable_stats.c
+++ b/tools/testing/selftests/bpf/progs/test_enable_stats.c
@@ -13,6 +13,6 @@ __u64 count = 0;
 SEC("raw_tracepoint/sys_enter")
 int test_enable_stats(void *ctx)
 {
-	count += 1;
+	__sync_fetch_and_add(&count, 1);
 	return 0;
 }
-- 
2.30.2