diff options
| -rw-r--r-- | drivers/net/vrf.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c index 77d0655a0250..0b54f553228e 100644 --- a/drivers/net/vrf.c +++ b/drivers/net/vrf.c @@ -772,8 +772,11 @@ static int do_vrf_add_slave(struct net_device *dev, struct net_device *port_dev, /* do not allow loopback device to be enslaved to a VRF. * The vrf device acts as the loopback for the vrf. */ - if (port_dev == dev_net(dev)->loopback_dev) + if (port_dev == dev_net(dev)->loopback_dev) { + NL_SET_ERR_MSG(extack, + "Can not enslave loopback device to a VRF"); return -EOPNOTSUPP; + } port_dev->priv_flags |= IFF_L3MDEV_SLAVE; ret = netdev_master_upper_dev_link(port_dev, dev, NULL, NULL, extack); @@ -792,7 +795,13 @@ err: static int vrf_add_slave(struct net_device *dev, struct net_device *port_dev, struct netlink_ext_ack *extack) { - if (netif_is_l3_master(port_dev) || netif_is_l3_slave(port_dev)) + if (netif_is_l3_master(port_dev)) { + NL_SET_ERR_MSG(extack, + "Can not enslave an L3 master device to a VRF"); + return -EINVAL; + } + + if (netif_is_l3_slave(port_dev)) return -EINVAL; return do_vrf_add_slave(dev, port_dev, extack); |