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[3/4] xfrm: interface: do not confirm neighbor when do pmtu update

Message ID 20200121071631.25188-4-steffen.klassert@secunet.com
State Accepted
Delegated to: David Miller
Headers show
Series pull request (net): ipsec 2020-01-21 | expand

Commit Message

Steffen Klassert Jan. 21, 2020, 7:16 a.m. UTC 
From: Xu Wang <vulab@iscas.ac.cn>

When do IPv6 tunnel PMTU update and calls __ip6_rt_update_pmtu() in the end,
we should not call dst_confirm_neigh() as there is no two-way communication.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
 net/xfrm/xfrm_interface.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index 00393179f185..dc651a628dcf 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -294,7 +294,7 @@  xfrmi_xmit2(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
 
 	mtu = dst_mtu(dst);
 	if (!skb->ignore_df && skb->len > mtu) {
-		skb_dst_update_pmtu(skb, mtu);
+		skb_dst_update_pmtu_no_confirm(skb, mtu);
 
 		if (skb->protocol == htons(ETH_P_IPV6)) {
 			if (mtu < IPV6_MIN_MTU)