diff options
| author | Stefano Brivio <sbrivio@redhat.com> | 2018-10-12 23:53:59 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-10-17 21:51:13 -0700 |
| commit | 6b4f92af3d59e882d3ba04c44a815266890d188f (patch) | |
| tree | 8446305611f6d7e76b1470f1ca91f8bdb822b7bf /drivers/net/geneve.c | |
| parent | 7463e4f9b99c089cc962033b46349ff29f466e40 (diff) | |
geneve, vxlan: Don't set exceptions if skb->len < mtu
We shouldn't abuse exceptions: if the destination MTU is already higher
than what we're transmitting, no exception should be created.
Fixes: 52a589d51f10 ("geneve: update skb dst pmtu on tx path")
Fixes: a93bf0ff4490 ("vxlan: update skb dst pmtu on tx path")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/geneve.c')
| -rw-r--r-- | drivers/net/geneve.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index 61c4bfbeb41c..493cd382b8aa 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -830,8 +830,8 @@ static int geneve_xmit_skb(struct sk_buff *skb, struct net_device *dev, if (IS_ERR(rt)) return PTR_ERR(rt); - skb_dst_update_pmtu(skb, dst_mtu(&rt->dst) - - GENEVE_IPV4_HLEN - info->options_len); + skb_tunnel_check_pmtu(skb, &rt->dst, + GENEVE_IPV4_HLEN + info->options_len); sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); if (geneve->collect_md) { @@ -872,8 +872,7 @@ static int geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev, if (IS_ERR(dst)) return PTR_ERR(dst); - skb_dst_update_pmtu(skb, dst_mtu(dst) - - GENEVE_IPV6_HLEN - info->options_len); + skb_tunnel_check_pmtu(skb, dst, GENEVE_IPV6_HLEN + info->options_len); sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); if (geneve->collect_md) { |