diff options
| author | Hangbin Liu <liuhangbin@gmail.com> | 2019-12-22 10:51:11 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-04 19:19:00 +0100 |
| commit | 048478ddec29dfe8fe72e01b49d2200bd87f5cc5 (patch) | |
| tree | fee079bd2f6701f5734f72a161e6dfda9a8b5b46 /drivers/net/gtp.c | |
| parent | 871d063728649733c3d6fac2fe210f07b186f0a7 (diff) | |
gtp: do not confirm neighbor when do pmtu update
[ Upstream commit 6e9105c73f8d2163d12d5dfd762fd75483ed30f5 ]
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.
Although GTP only support ipv4 right now, and __ip_rt_update_pmtu() does not
call dst_confirm_neigh(), we still set it to false to keep consistency with
IPv6 code.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/gtp.c')
| -rw-r--r-- | drivers/net/gtp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c index 9cac0accba7a..71b34ff8e7eb 100644 --- a/drivers/net/gtp.c +++ b/drivers/net/gtp.c @@ -541,7 +541,7 @@ static int gtp_build_skb_ip4(struct sk_buff *skb, struct net_device *dev, mtu = dst_mtu(&rt->dst); } - rt->dst.ops->update_pmtu(&rt->dst, NULL, skb, mtu, true); + rt->dst.ops->update_pmtu(&rt->dst, NULL, skb, mtu, false); if (!skb_is_gso(skb) && (iph->frag_off & htons(IP_DF)) && mtu < ntohs(iph->tot_len)) { |