ipmonitor: make local variable static

prefix_banner only used in one file.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/ip/ipmonitor.c b/ip/ipmonitor.c
index 9d5ac2b5e4d2c576da9bc4cf5cc22aca237aeb61..743632cc5569309483a28db09f8bf0a056c30758 100644 (file)
--- a/ip/ipmonitor.c
+++ b/ip/ipmonitor.c
@@ -24,7 +24,7 @@
 #include "ip_common.h"
 
 static void usage(void) __attribute__((noreturn));
-int prefix_banner;
+static int prefix_banner;
 int listen_all_nsid;
 
 static void usage(void)