WAN: Fix a TX IRQ causing BUG() in PC300 and PCI200SYN drivers.

[linux.git] / net / ipv6 / sit.c

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index d6bfaec3bbbf1a91701fd31616757af1a565bb41..8c4d00c7cd2bb030c194c19e00b5455d2cddf3df 100644 (file)
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -606,8 +606,9 @@ static int ipip6_rcv(struct sk_buff *skb)
                return 0;
        }
 
-       icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
+       /* no tunnel matched,  let upstream know, ipsec may handle it */
        rcu_read_unlock();
+       return 1;
 out:
        kfree_skb(skb);
        return 0;