ip: make local functions static
diff --git a/ip/xfrm_monitor.c b/ip/xfrm_monitor.c
index ea17987..bfc48f1 100644
--- a/ip/xfrm_monitor.c
+++ b/ip/xfrm_monitor.c
@@ -206,7 +206,7 @@
 	return 0;
 }
 
-void xfrm_ae_flags_print(__u32 flags, void *arg)
+static void xfrm_ae_flags_print(__u32 flags, void *arg)
 {
 	FILE *fp = (FILE*)arg;
 	fprintf(fp, " (0x%x) ", flags);