-int ip6_mc_del_src(struct inet6_dev *idev, struct in6_addr *pmca, int sfmode,
- int sfcount, struct in6_addr *psfsrc, int delta);
-int ip6_mc_add_src(struct inet6_dev *idev, struct in6_addr *pmca, int sfmode,
- int sfcount, struct in6_addr *psfsrc, int delta);
-int ip6_mc_leave_src(struct sock *sk, struct ipv6_mc_socklist *iml,
- struct inet6_dev *idev);
+static int ip6_mc_del_src(struct inet6_dev *idev, struct in6_addr *pmca,
+ int sfmode, int sfcount, struct in6_addr *psfsrc,
+ int delta);
+static int ip6_mc_add_src(struct inet6_dev *idev, struct in6_addr *pmca,
+ int sfmode, int sfcount, struct in6_addr *psfsrc,
+ int delta);
+static int ip6_mc_leave_src(struct sock *sk, struct ipv6_mc_socklist *iml,
+ struct inet6_dev *idev);