[BRIDGE]: netlink interface for link management

Add basic netlink support to the Ethernet bridge. Including:
 * dump interfaces in bridges
 * monitor link status changes
 * change state of bridge port

For some demo programs see:
	http://developer.osdl.org/shemminger/prototypes/brnl.tar.gz

These are to allow building a daemon that does alternative
implementations of Spanning Tree Protocol.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
index a43a9c1d50d7..20278494e4da 100644
--- a/net/bridge/br_notify.c
+++ b/net/bridge/br_notify.c
@@ -14,6 +14,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/rtnetlink.h>
 
 #include "br_private.h"
 
@@ -49,6 +50,7 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v
 
         case NETDEV_CHANGEADDR:
                 br_fdb_changeaddr(p, dev->dev_addr);
+                br_ifinfo_notify(RTM_NEWLINK, p);
                 br_stp_recalculate_bridge_id(br);
                 break;