diff options
| author | David Ahern <dsahern@gmail.com> | 2017-10-04 17:48:50 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-10-04 21:39:34 -0700 |
| commit | ca752be006013ac6f19721280f44c91ef07ad3d1 (patch) | |
| tree | 78062ce7b833483852bfb2bc381c518ed2004b72 /net/bridge/br_if.c | |
| parent | 759088bda21f4887c645579418e8b478eb570d78 (diff) | |
net: bridge: Pass extack to down to netdev_master_upper_dev_link
Pass extack arg to br_add_if. Add messages for a couple of failures
and pass arg to netdev_master_upper_dev_link.
Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_if.c')
| -rw-r--r-- | net/bridge/br_if.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index 0a3fd727048d..59a74a414e20 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -480,7 +480,8 @@ netdev_features_t br_features_recompute(struct net_bridge *br, } /* called with RTNL */ -int br_add_if(struct net_bridge *br, struct net_device *dev) +int br_add_if(struct net_bridge *br, struct net_device *dev, + struct netlink_ext_ack *extack) { struct net_bridge_port *p; int err = 0; @@ -500,16 +501,22 @@ int br_add_if(struct net_bridge *br, struct net_device *dev) return -EINVAL; /* No bridging of bridges */ - if (dev->netdev_ops->ndo_start_xmit == br_dev_xmit) + if (dev->netdev_ops->ndo_start_xmit == br_dev_xmit) { + NL_SET_ERR_MSG(extack, + "Can not enslave a bridge to a bridge"); return -ELOOP; + } /* Device is already being bridged */ if (br_port_exists(dev)) return -EBUSY; /* No bridging devices that dislike that (e.g. wireless) */ - if (dev->priv_flags & IFF_DONT_BRIDGE) + if (dev->priv_flags & IFF_DONT_BRIDGE) { + NL_SET_ERR_MSG(extack, + "Device does not allow enslaving to a bridge"); return -EOPNOTSUPP; + } p = new_nbp(br, dev); if (IS_ERR(p)) @@ -540,7 +547,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev) dev->priv_flags |= IFF_BRIDGE_PORT; - err = netdev_master_upper_dev_link(dev, br->dev, NULL, NULL, NULL); + err = netdev_master_upper_dev_link(dev, br->dev, NULL, NULL, extack); if (err) goto err5; |