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authorDavid S. Miller <davem@davemloft.net>2012-01-26 15:23:21 -0500
committerDavid S. Miller <davem@davemloft.net>2012-01-26 15:23:21 -0500
commit1e2927b08160a14fff98e88e7a331d916aaa1d56 (patch)
tree745e1793166c9f365262ec1f257d0fb5bfc0119b
parent39232973b779ab0c02cb6dcd8f819b7cb0fcd09a (diff)
ipv6: sit: Convert to dst_neigh_lookup()
The only semantic difference is that we now hold a reference to the neighbour and thus have to release it. Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ipv6/sit.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 133768e5291..c4ffd174352 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -680,9 +680,10 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
/* ISATAP (RFC4214) - must come before 6to4 */
if (dev->priv_flags & IFF_ISATAP) {
struct neighbour *neigh = NULL;
+ bool do_tx_error = false;
if (skb_dst(skb))
- neigh = dst_get_neighbour_noref(skb_dst(skb));
+ neigh = dst_neigh_lookup(skb_dst(skb), &iph6->daddr);
if (neigh == NULL) {
if (net_ratelimit())
@@ -697,6 +698,10 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
ipv6_addr_is_isatap(addr6))
dst = addr6->s6_addr32[3];
else
+ do_tx_error = true;
+
+ neigh_release(neigh);
+ if (do_tx_error)
goto tx_error;
}
@@ -705,9 +710,10 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
if (!dst) {
struct neighbour *neigh = NULL;
+ bool do_tx_error = false;
if (skb_dst(skb))
- neigh = dst_get_neighbour_noref(skb_dst(skb));
+ neigh = dst_neigh_lookup(skb_dst(skb), &iph6->daddr);
if (neigh == NULL) {
if (net_ratelimit())
@@ -723,10 +729,14 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
addr_type = ipv6_addr_type(addr6);
}
- if ((addr_type & IPV6_ADDR_COMPATv4) == 0)
- goto tx_error_icmp;
+ if ((addr_type & IPV6_ADDR_COMPATv4) != 0)
+ dst = addr6->s6_addr32[3];
+ else
+ do_tx_error = true;
- dst = addr6->s6_addr32[3];
+ neigh_release(neigh);
+ if (do_tx_error)
+ goto tx_error;
}
rt = ip_route_output_ports(dev_net(dev), &fl4, NULL,