Index: xen-4.0.1-testing/tools/hotplug/Linux/network-bridge
===================================================================
--- xen-4.0.1-testing.orig/tools/hotplug/Linux/network-bridge
+++ xen-4.0.1-testing/tools/hotplug/Linux/network-bridge
@@ -253,6 +253,11 @@ op_start () {
 
     create_bridge ${tdev}
 
+    # Record creation of bridge in /dev/.sysconfig/network/xenbridges so other
+    # tools, e.g. yast2 lan, know that Xen bridging is active.
+    [ -d /dev/.sysconfig/network/xenbridges ] || mkdir /dev/.sysconfig/network/xenbridges
+    touch /dev/.sysconfig/network/xenbridges/${bridge}
+
     preiftransfer ${netdev}
     transfer_addrs ${netdev} ${tdev}
     # Remember slaves for bonding interface.
@@ -330,6 +335,13 @@ op_stop () {
     ip link set ${pdev} name ${netdev}
     do_ifup ${netdev}
 
+    # Remove record of bridge from /dev/.sysconfig/network/xenbridges ...
+    rm -f /dev/.sysconfig/network/xenbridges/${bridge}
+    # ... and directory itself if empty
+    if [ -z "$(ls -A /dev/.sysconfig/network/xenbridges 2>/dev/null)" ]; then
+	rmdir /dev/.sysconfig/network/xenbridges
+    fi
+
     for vlan in $vlans ; do ifup $vlan ; done
 
     release_lock "network-bridge"