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| author | Hangbin Liu <liuhangbin@gmail.com> | 2019-12-22 10:51:15 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-12-24 22:28:55 -0800 |
| commit | 4d42df46d6372ece4cb4279870b46c2ea7304a47 (patch) | |
| tree | 2b5be8c206d8ce8f6caa0df2578f15c35ebd1313 /net/ipv6/sit.c | |
| parent | 8247a79efa2f28b44329f363272550c1738377de (diff) | |
| download | lwn-4d42df46d6372ece4cb4279870b46c2ea7304a47.tar.gz lwn-4d42df46d6372ece4cb4279870b46c2ea7304a47.zip | |
sit: do not confirm neighbor when do pmtu update
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.
v5: No change.
v4: No change.
v3: Do not remove dst_confirm_neigh, but add a new bool parameter in
dst_ops.update_pmtu to control whether we should do neighbor confirm.
Also split the big patch to small ones for each area.
v2: Remove dst_confirm_neigh in __ip6_rt_update_pmtu.
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/sit.c')
| -rw-r--r-- | net/ipv6/sit.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index b2ccbc473127..98954830c40b 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -944,7 +944,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb, } if (tunnel->parms.iph.daddr) - skb_dst_update_pmtu(skb, mtu); + skb_dst_update_pmtu_no_confirm(skb, mtu); if (skb->len > mtu && !skb_is_gso(skb)) { icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu); |