From: Xu Wang <vulab@iscas.ac.cn>
To: davem@davemloft.net, herbert@gondor.apana.org.au,
steffen.klassert@secunet.com
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] xfrm: interface: do not confirm neighbor when do pmtu update
Date: Mon, 13 Jan 2020 09:00:36 +0000 [thread overview]
Message-ID: <1578906036-20623-1-git-send-email-vulab@iscas.ac.cn> (raw)
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>
---
net/xfrm/xfrm_interface.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index 7ac1542..e732637 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -297,7 +297,7 @@ 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)
--
2.7.4
next reply other threads:[~2020-01-13 9:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-13 9:00 Xu Wang [this message]
2020-01-15 9:57 ` Steffen Klassert
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