diff options
| author | stephen hemminger <shemminger@vyatta.com> | 2011-03-24 13:24:01 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-03-27 23:35:02 -0700 |
| commit | edf947f10074fea27fdb1730524dca59355a1c40 (patch) | |
| tree | 4141cd2fa39ae589055057e912d3235150d670c5 /net/bridge/br_if.c | |
| parent | 8628bd8af7c4c14f40f5183f80f5744c4e682439 (diff) | |
| download | lwn-edf947f10074fea27fdb1730524dca59355a1c40.tar.gz lwn-edf947f10074fea27fdb1730524dca59355a1c40.zip | |
bridge: notify applications if address of bridge device changes
The mac address of the bridge device may be changed when a new interface
is added to the bridge. If this happens, then the bridge needs to call
the network notifiers to tickle any other systems that care. Since bridge
can be a module, this also means exporting the notifier function.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
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 | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index dce8f0009a12..718b60366dfe 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -389,6 +389,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev) { struct net_bridge_port *p; int err = 0; + bool changed_addr; /* Don't allow bridging non-ethernet like devices */ if ((dev->flags & IFF_LOOPBACK) || @@ -446,7 +447,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev) list_add_rcu(&p->list, &br->port_list); spin_lock_bh(&br->lock); - br_stp_recalculate_bridge_id(br); + changed_addr = br_stp_recalculate_bridge_id(br); br_features_recompute(br); if ((dev->flags & IFF_UP) && netif_carrier_ok(dev) && @@ -456,6 +457,9 @@ int br_add_if(struct net_bridge *br, struct net_device *dev) br_ifinfo_notify(RTM_NEWLINK, p); + if (changed_addr) + call_netdevice_notifiers(NETDEV_CHANGEADDR, dev); + dev_set_mtu(br->dev, br_min_mtu(br)); kobject_uevent(&p->kobj, KOBJ_ADD); |