diff --git a/kernel/events/core.c b/kernel/events/core.c
index 72d06e302e99..dfc4bab0b02b 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -11878,7 +11878,7 @@ static void __init perf_event_init_all_cpus(void)
 	}
 }
 
-void perf_swevent_init_cpu(unsigned int cpu)
+static void perf_swevent_init_cpu(unsigned int cpu)
 {
 	struct swevent_htable *swhash = &per_cpu(swevent_htable, cpu);