diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index f7e86791a0825..7f85594b663a8 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -274,7 +274,8 @@ static struct dlm_node_addr *find_node_addr(int nodeid)
 	return NULL;
 }
 
-static int addr_compare(struct sockaddr_storage *x, struct sockaddr_storage *y)
+static int addr_compare(const struct sockaddr_storage *x,
+			const struct sockaddr_storage *y)
 {
 	switch (x->ss_family) {
 	case AF_INET: {