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Commit 26892058 authored by Yasuyuki Kozakai's avatar Yasuyuki Kozakai Committed by David S. Miller
Browse files

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



Signed-off-by: default avatarYasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: default avatarYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
parent 8c14b7ce

net/ipv6/ip6_tunnel.c

+2 −5
Original line number Diff line number Diff line
@@ -727,11 +727,8 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev) 
	}

	if (mtu < IPV6_MIN_MTU)

		mtu = IPV6_MIN_MTU;

	if (skb->dst && mtu < dst_mtu(skb->dst)) {

		struct rt6_info *rt = (struct rt6_info *) skb->dst;

		rt->rt6i_flags |= RTF_MODIFIED;

		rt->u.dst.metrics[RTAX_MTU-1] = mtu;

	}

	if (skb->dst)

		skb->dst->ops->update_pmtu(skb->dst, mtu);

	if (skb->len > mtu) {

		icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, dev);

		goto tx_err_dst_release;