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Commit b89df65c authored by Petr Machata's avatar Petr Machata Committed by David S. Miller
Browse files

net: bridge: Handle NETDEV_PRE_CHANGEADDR from ports



When a port device seeks approval of a potential new MAC address, make
sure that should the bridge device end up using this address, all
interested parties would agree with it.
Signed-off-by: default avatarPetr Machata <petrm@mellanox.com>
Acked-by: default avatarJiri Pirko <jiri@mellanox.com>
Reviewed-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ca935da7
......@@ -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);
......
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