tunnel: do not confirm neighbor when do pmtu update
authorHangbin Liu <liuhangbin@gmail.com>
Sun, 22 Dec 2019 02:51:13 +0000 (10:51 +0800)
committerDavid S. Miller <davem@davemloft.net>
Wed, 25 Dec 2019 06:28:55 +0000 (22:28 -0800)
commit7a1592bcb15d71400a98632727791d1e68ea0ee8
tree56669a835f74edb845f9d3003279aa55f5c0bafa
parent07dc35c6e3cc3c001915d05f5bf21f80a39a0970
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>
net/ipv4/ip_tunnel.c
net/ipv6/ip6_tunnel.c