Consolidate ARRAY_SIZE macro; remove one unneeded global var (walter harms <wharms@bfs.de>)

diff --git a/networking/libiproute/ll_proto.c b/networking/libiproute/ll_proto.c
index 10d7498..4e62e87 100644
--- a/networking/libiproute/ll_proto.c
+++ b/networking/libiproute/ll_proto.c
@@ -96,7 +96,7 @@
 
 	id = ntohs(id);
 
-	for (i=0; i<sizeof(llproto_names)/sizeof(llproto_names[0]); i++) {
+	for (i=0; i < ARRAY_SIZE(llproto_names); i++) {
 		 if (llproto_names[i].id == id)
 			return llproto_names[i].name;
 	}
@@ -107,7 +107,7 @@
 int ll_proto_a2n(unsigned short *id, char *buf)
 {
 	int i;
-	for (i=0; i<sizeof(llproto_names)/sizeof(llproto_names[0]); i++) {
+	for (i=0; i < ARRAY_SIZE(llproto_names); i++) {
 		 if (strcasecmp(llproto_names[i].name, buf) == 0) {
 			 *id = htons(llproto_names[i].id);
 			 return 0;