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| author |   Hangbin Liu <liuhangbin@gmail.com> | 2019-12-22 10:51:13 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-12-24 22:28:55 -0800 |
| commit | 7a1592bcb15d71400a98632727791d1e68ea0ee8 (patch) | |
| tree | 56669a835f74edb845f9d3003279aa55f5c0bafa /net/ipv4/ip_tunnel.c | |
| parent | net/dst: add new function skb_dst_update_pmtu_no_confirm (diff) | |
| download | linux-dev-7a1592bcb15d71400a98632727791d1e68ea0ee8.tar.xz linux-dev-7a1592bcb15d71400a98632727791d1e68ea0ee8.zip | |
tunnel: do not confirm neighbor when do pmtu update
When do 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: Update commit description
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.
Fixes: 0dec879f636f ("net: use dst_confirm_neigh for UDP, RAW, ICMP, L2TP")
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Tested-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/ipv4/ip_tunnel.c')
| -rw-r--r-- | net/ipv4/ip_tunnel.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index 38c02bb62e2c..0fe2a5d3e258 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -505,7 +505,7 @@ static int tnl_update_pmtu(struct net_device *dev, struct sk_buff *skb, mtu = skb_valid_dst(skb) ? dst_mtu(skb_dst(skb)) : dev->mtu; if (skb_valid_dst(skb)) - skb_dst_update_pmtu(skb, mtu); + skb_dst_update_pmtu_no_confirm(skb, mtu); if (skb->protocol == htons(ETH_P_IP)) { if (!skb_is_gso(skb) && |