From: Jesper Dangaard Brouer <bro...@redhat.com>
The veth driver is a virtual device, and should not have assigned
the default qdisc. Verified (ndo_start_xmit) veth_xmit can only
return NETDEV_TX_OK, thus this should be safe to bypass qdisc.
Not assigning a qdisc is subtly done by setting tx_queue_len to zero.
Reported-by: Mrunal Patel <mpa...@redhat.com>
Signed-off-by: Jesper Dangaard Brouer <bro...@redhat.com>
Signed-off-by: Phil Sutter <p...@nwl.cc>
---
drivers/net/veth.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index c8186ff..6b3d822 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -302,6 +302,7 @@ static const struct net_device_ops veth_netdev_ops = {
static void veth_setup(struct net_device *dev)
{
ether_setup(dev);
+ dev->tx_queue_len = 0;
dev->priv_flags &= ~IFF_TX_SKB_SHARING;
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
--
2.1.2
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