diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 3bab9b0a90b625075b8fed29153089a7305e405b..61f0e92ace999815aeac87703525b90f14abe407 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -300,8 +300,6 @@ u64 ring_buffer_event_time_stamp(struct ring_buffer_event *event)
 /* Missed count stored at end */
 #define RB_MISSED_STORED	(1 << 30)
 
-#define RB_MISSED_FLAGS		(RB_MISSED_EVENTS|RB_MISSED_STORED)
-
 struct buffer_data_page {
 	u64		 time_stamp;	/* page time stamp */
 	local_t		 commit;	/* write committed index */