struct neighbour *neigh,
const struct in6_addr *target);
-extern int ndisc_mc_map(struct in6_addr *addr, char *buf, struct net_device *dev, int dir);
+extern int ndisc_mc_map(const struct in6_addr *addr, char *buf,
+ struct net_device *dev, int dir);
extern struct sk_buff *ndisc_build_skb(struct net_device *dev,
const struct in6_addr *daddr,