[IPV6]: dst_alloc() clean-up.

include/net/ip6_route.h

@@ -59,7 +59,7 @@ extern struct rt6_info		*rt6_lookup(struct in6_addr *daddr,
 					    struct in6_addr *saddr,
 					    int oif, int flags);
 
-extern struct rt6_info		*ndisc_get_dummy_rt(void);
+extern struct rt6_info		*ip6_dst_alloc(void);
 
 /*
  *	support functions for ND

net/ipv6/ndisc.c

@@ -427,7 +427,7 @@ static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh,
 
 	len = sizeof(struct icmp6hdr) + sizeof(struct in6_addr);
 
-	rt = ndisc_get_dummy_rt();
+	rt = ip6_dst_alloc();
 	if (!rt) 
 		return;
 
@@ -524,7 +524,7 @@ void ndisc_send_ns(struct net_device *dev, struct neighbour *neigh,
 		saddr = &addr_buf;
 	}
 
-	rt = ndisc_get_dummy_rt();
+	rt = ip6_dst_alloc();
 	if (!rt) 
 		return;
 
@@ -595,7 +595,7 @@ void ndisc_send_rs(struct net_device *dev, struct in6_addr *saddr,
         int len;
 	int err;
 
-	rt = ndisc_get_dummy_rt();
+	rt = ip6_dst_alloc();
 	if (!rt) 
 		return;
 

net/ipv6/route.c

@@ -130,12 +130,17 @@ struct fib6_node ip6_routing_table = {
 rwlock_t rt6_lock = RW_LOCK_UNLOCKED;
 
 
-/*	Dummy rt for ndisc */
-struct rt6_info *ndisc_get_dummy_rt()
+/* allocate dst with ip6_dst_ops */
+static __inline__ struct rt6_info *__ip6_dst_alloc(void)
 {
 	return dst_alloc(&ip6_dst_ops);
 }
 
+struct rt6_info *ip6_dst_alloc(void)
+{
+	return __ip6_dst_alloc();
+}
+
 /*
  *	Route lookup. Any rt6_lock is implied.
  */
@@ -640,7 +645,7 @@ int ip6_route_add(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh)
 	if (rtmsg->rtmsg_metric == 0)
 		rtmsg->rtmsg_metric = IP6_RT_PRIO_USER;
 
-	rt = dst_alloc(&ip6_dst_ops);
+	rt = __ip6_dst_alloc();
 
 	if (rt == NULL)
 		return -ENOMEM;
@@ -1035,9 +1040,7 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
 
 static struct rt6_info * ip6_rt_copy(struct rt6_info *ort)
 {
-	struct rt6_info *rt;
-
-	rt = dst_alloc(&ip6_dst_ops);
+	struct rt6_info *rt = __ip6_dst_alloc();
 
 	if (rt) {
 		rt->u.dst.input = ort->u.dst.input;
@@ -1181,9 +1184,8 @@ int ip6_pkt_discard(struct sk_buff *skb)
 
 int ip6_rt_addr_add(struct in6_addr *addr, struct net_device *dev)
 {
-	struct rt6_info *rt;
+	struct rt6_info *rt = __ip6_dst_alloc();
 
-	rt = dst_alloc(&ip6_dst_ops);
 	if (rt == NULL)
 		return -ENOMEM;