diff options
Diffstat (limited to 'net/bridge')
| -rw-r--r-- | net/bridge/br.c | 13 | ||||
| -rw-r--r-- | net/bridge/br_if.c | 9 |
2 files changed, 22 insertions, 0 deletions
diff --git a/net/bridge/br.c b/net/bridge/br.c index 4e7cd993ce94..a5174e5001d8 100644 --- a/net/bridge/br.c +++ b/net/bridge/br.c @@ -31,6 +31,8 @@ */ static int br_device_event(struct notifier_block *unused, unsigned long event, void *ptr) { + struct netlink_ext_ack *extack = netdev_notifier_info_to_extack(ptr); + struct netdev_notifier_pre_changeaddr_info *prechaddr_info; struct net_device *dev = netdev_notifier_info_to_dev(ptr); struct net_bridge_port *p; struct net_bridge *br; @@ -56,6 +58,17 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v br_mtu_auto_adjust(br); break; + case NETDEV_PRE_CHANGEADDR: + if (br->dev->addr_assign_type == NET_ADDR_SET) + break; + prechaddr_info = ptr; + err = dev_pre_changeaddr_notify(br->dev, + prechaddr_info->dev_addr, + extack); + if (err) + return notifier_from_errno(err); + break; + case NETDEV_CHANGEADDR: spin_lock_bh(&br->lock); br_fdb_changeaddr(p, dev->dev_addr); diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index 3b945d6369c4..41f0a696a65f 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -650,6 +650,15 @@ int br_add_if(struct net_bridge *br, struct net_device *dev, if (br_fdb_insert(br, p, dev->dev_addr, 0)) netdev_err(dev, "failed insert local address bridge forwarding table\n"); + if (br->dev->addr_assign_type != NET_ADDR_SET) { + /* Ask for permission to use this MAC address now, even if we + * don't end up choosing it below. + */ + err = dev_pre_changeaddr_notify(br->dev, dev->dev_addr, extack); + if (err) + goto err7; + } + err = nbp_vlan_init(p, extack); if (err) { netdev_err(dev, "failed to initialize vlan filtering on this port\n"); |