openvswitch: Warn over-mtu packets only if iface is UP.

It is not unusual to have the bridge port down. Sometimes
it has the old MTU, which is fine since it's not being used.

However, the kernel spams the log with a warning message
when a packet is going to be sent over such port. Fix that
by warning only if the interface is UP.

Signed-off-by: Flavio Leitner <fbl@sysclose.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Flavio Leitner 2021-03-16 17:14:27 -03:00 committed by David S. Miller
parent 01035bcc0f
commit ebfbc46b35
1 changed files with 5 additions and 3 deletions

View File

@ -497,10 +497,12 @@ void ovs_vport_send(struct vport *vport, struct sk_buff *skb, u8 mac_proto)
if (unlikely(packet_length(skb, vport->dev) > mtu &&
!skb_is_gso(skb))) {
net_warn_ratelimited("%s: dropped over-mtu packet: %d > %d\n",
vport->dev->name,
packet_length(skb, vport->dev), mtu);
vport->dev->stats.tx_errors++;
if (vport->dev->flags & IFF_UP)
net_warn_ratelimited("%s: dropped over-mtu packet: "
"%d > %d\n", vport->dev->name,
packet_length(skb, vport->dev),
mtu);
goto drop;
}