From: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Date: Sat, 9 Sep 2006 18:59:17 +0000 (+0900)
Subject: [IPV6] IP6TUNNEL: Use update_pmtu() of dst on xmit.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=268920584b57d534a40503a8a3a47eff9e57fbf8;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

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

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
---

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 662edb826899..08d944223ec8 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -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;