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[IPV6] IP6TUNNEL: Use update_pmtu() of dst on xmit.

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Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
This commit is contained in:
Yasuyuki Kozakai 2006-09-10 03:59:17 +09:00 committed by David S. Miller
parent 8c14b7ce22
commit 268920584b
1 changed files with 2 additions and 5 deletions
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7
net/ipv6/ip6_tunnel.c
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@ -727,11 +727,8 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
} }
if (mtu < IPV6_MIN_MTU) if (mtu < IPV6_MIN_MTU)
mtu = IPV6_MIN_MTU; mtu = IPV6_MIN_MTU;
if (skb->dst && mtu < dst_mtu(skb->dst)) { if (skb->dst)
struct rt6_info *rt = (struct rt6_info *) skb->dst; skb->dst->ops->update_pmtu(skb->dst, mtu);
rt->rt6i_flags |= RTF_MODIFIED;
rt->u.dst.metrics[RTAX_MTU-1] = mtu;
}
if (skb->len > mtu) { if (skb->len > mtu) {
icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, dev); icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, dev);
goto tx_err_dst_release; goto tx_err_dst_release;