[IPV6] ADDRCONF: Convert ipv6_get_saddr() to ipv6_dev_get_saddr().

Since most users of ipv6_get_saddr() pass non-NULL as
dst argument, use ipv6_dev_get_saddr() directly.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

include/net/addrconf.h

@@ -73,9 +73,6 @@ extern struct inet6_ifaddr      *ipv6_get_ifaddr(struct net *net,
 						 struct net_device *dev,
 						 int strict);
 
-extern int			ipv6_get_saddr(struct dst_entry *dst, 
-					       struct in6_addr *daddr,
-					       struct in6_addr *saddr);
 extern int			ipv6_dev_get_saddr(struct net_device *dev, 
 					       struct in6_addr *daddr,
 					       struct in6_addr *saddr);

net/ipv6/addrconf.c

@@ -1167,14 +1167,7 @@ int ipv6_dev_get_saddr(struct net_device *daddr_dev,
 	return 0;
 }
 
-
-int ipv6_get_saddr(struct dst_entry *dst,
-		   struct in6_addr *daddr, struct in6_addr *saddr)
-{
-	return ipv6_dev_get_saddr(dst ? ip6_dst_idev(dst)->dev : NULL, daddr, saddr);
-}
-
-EXPORT_SYMBOL(ipv6_get_saddr);
+EXPORT_SYMBOL(ipv6_dev_get_saddr);
 
 int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr,
 		    unsigned char banned_flags)

net/ipv6/fib6_rules.c

@@ -85,8 +85,8 @@ static int fib6_rule_action(struct fib_rule *rule, struct flowi *flp,
 		if ((rule->flags & FIB_RULE_FIND_SADDR) &&
 		    r->src.plen && !(flags & RT6_LOOKUP_F_HAS_SADDR)) {
 			struct in6_addr saddr;
-			if (ipv6_get_saddr(&rt->u.dst, &flp->fl6_dst,
-					   &saddr))
+			if (ipv6_dev_get_saddr(ip6_dst_idev(&rt->u.dst)->dev,
+					       &flp->fl6_dst, &saddr))
 				goto again;
 			if (!ipv6_prefix_equal(&saddr, &r->src.addr,
 					       r->src.plen))

net/ipv6/ip6_output.c

@@ -919,7 +919,8 @@ static int ip6_dst_lookup_tail(struct sock *sk,
 		goto out_err_release;
 
 	if (ipv6_addr_any(&fl->fl6_src)) {
-		err = ipv6_get_saddr(*dst, &fl->fl6_dst, &fl->fl6_src);
+		err = ipv6_dev_get_saddr(ip6_dst_idev(*dst)->dev,
+					 &fl->fl6_dst, &fl->fl6_src);
 		if (err)
 			goto out_err_release;
 	}

net/ipv6/route.c

@@ -2122,7 +2122,8 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
 		NLA_PUT_U32(skb, RTA_IIF, iif);
 	else if (dst) {
 		struct in6_addr saddr_buf;
-		if (ipv6_get_saddr(&rt->u.dst, dst, &saddr_buf) == 0)
+		if (ipv6_dev_get_saddr(ip6_dst_idev(&rt->u.dst)->dev,
+				       dst, &saddr_buf) == 0)
 			NLA_PUT(skb, RTA_PREFSRC, 16, &saddr_buf);
 	}
 

net/ipv6/xfrm6_policy.c

@@ -57,8 +57,9 @@ static int xfrm6_get_saddr(xfrm_address_t *saddr, xfrm_address_t *daddr)
 	if (IS_ERR(dst))
 		return -EHOSTUNREACH;
 
-	ipv6_get_saddr(dst, (struct in6_addr *)&daddr->a6,
-		       (struct in6_addr *)&saddr->a6);
+	ipv6_dev_get_saddr(ip6_dst_idev(dst)->dev,
+			   (struct in6_addr *)&daddr->a6,
+			   (struct in6_addr *)&saddr->a6);
 	dst_release(dst);
 	return 0;
 }

net/sctp/ipv6.c

@@ -313,7 +313,8 @@ static void sctp_v6_get_saddr(struct sctp_association *asoc,
 			  __FUNCTION__, asoc, dst, NIP6(daddr->v6.sin6_addr));
 
 	if (!asoc) {
-		ipv6_get_saddr(dst, &daddr->v6.sin6_addr,&saddr->v6.sin6_addr);
+		ipv6_dev_get_saddr(dst ? ip6_dst_idev(dst)->dev : NULL,
+				   &daddr->v6.sin6_addr, &saddr->v6.sin6_addr);
 		SCTP_DEBUG_PRINTK("saddr from ipv6_get_saddr: " NIP6_FMT "\n",
 				  NIP6(saddr->v6.sin6_addr));
 		return;