ip: make local functions static
diff --git a/tc/tc_filter.c b/tc/tc_filter.c
index c9e09d8..c3f2d5f 100644
--- a/tc/tc_filter.c
+++ b/tc/tc_filter.c
@@ -45,7 +45,7 @@
 }
 
 
-int tc_filter_modify(int cmd, unsigned flags, int argc, char **argv)
+static int tc_filter_modify(int cmd, unsigned flags, int argc, char **argv)
 {
 	struct {
 		struct nlmsghdr 	n;
@@ -260,7 +260,7 @@
 }
 
 
-int tc_filter_list(int argc, char **argv)
+static int tc_filter_list(int argc, char **argv)
 {
 	struct tcmsg t;
 	char d[16];