Merge branch 'linux-2.6'

[linux-2.6-omap-h63xx.git] / net / bridge / br_notify.c

diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
index 3311c4e30829ed93c6e3ce2d004f956eb8e60758..07ac3ae68d8ff089000a78c19024a5d40c3baf9a 100644 (file)
--- a/net/bridge/br_notify.c
+++ b/net/bridge/br_notify.c
@@ -15,6 +15,7 @@
 
 #include <linux/kernel.h>
 #include <linux/rtnetlink.h>
+#include <net/net_namespace.h>
 
 #include "br_private.h"
 
@@ -36,57 +37,62 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v
        struct net_bridge_port *p = dev->br_port;
        struct net_bridge *br;
 
+       if (dev->nd_net != &init_net)
+               return NOTIFY_DONE;
+
        /* not a port of a bridge */
        if (p == NULL)
                return NOTIFY_DONE;
 
        br = p->br;
 
-       spin_lock_bh(&br->lock);
        switch (event) {
        case NETDEV_CHANGEMTU:
                dev_set_mtu(br->dev, br_min_mtu(br));
                break;
 
        case NETDEV_CHANGEADDR:
+               spin_lock_bh(&br->lock);
                br_fdb_changeaddr(p, dev->dev_addr);
-               br_ifinfo_notify(RTM_NEWLINK, p);
                br_stp_recalculate_bridge_id(br);
+               spin_unlock_bh(&br->lock);
                break;
 
        case NETDEV_CHANGE:
-               if (br->dev->flags & IFF_UP)
-                       if (schedule_delayed_work(&p->carrier_check,
-                                               BR_PORT_DEBOUNCE))
-                               dev_hold(dev);
+               br_port_carrier_check(p);
                break;
 
        case NETDEV_FEAT_CHANGE:
-               if (br->dev->flags & IFF_UP)
+               spin_lock_bh(&br->lock);
+               if (netif_running(br->dev))
                        br_features_recompute(br);
-
-               /* could do recursive feature change notification
-                * but who would care??
-                */
+               spin_unlock_bh(&br->lock);
                break;
 
        case NETDEV_DOWN:
+               spin_lock_bh(&br->lock);
                if (br->dev->flags & IFF_UP)
                        br_stp_disable_port(p);
+               spin_unlock_bh(&br->lock);
                break;
 
        case NETDEV_UP:
-               if (netif_carrier_ok(dev) && (br->dev->flags & IFF_UP))
+               if (netif_carrier_ok(dev) && (br->dev->flags & IFF_UP)) {
+                       spin_lock_bh(&br->lock);
                        br_stp_enable_port(p);
+                       spin_unlock_bh(&br->lock);
+               }
                break;
 
        case NETDEV_UNREGISTER:
-               spin_unlock_bh(&br->lock);
                br_del_if(br, dev);
-               goto done;
+               break;
        }
-       spin_unlock_bh(&br->lock);
 
- done:
+       /* Events that may cause spanning tree to refresh */
+       if (event == NETDEV_CHANGEADDR || event == NETDEV_UP ||
+           event == NETDEV_CHANGE || event == NETDEV_DOWN)
+               br_ifinfo_notify(RTM_NEWLINK, p);
+
        return NOTIFY_DONE;
 }