1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/trace/trace_output.h b/kernel/trace/trace_output.h
index b2c14615e0cd..1cbab5e3dc99 100644
--- a/kernel/trace/trace_output.h
+++ b/kernel/trace/trace_output.h
@@ -16,7 +16,8 @@ struct trace_event {
         trace_print_func        binary;
 };
 
-extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...);
+extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
+        __attribute__ ((format (printf, 2, 3)));
 extern int
 seq_print_ip_sym(struct trace_seq *s, unsigned long ip,
                 unsigned long sym_flags);