X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fnet%2Fveth.c;h=31cd817f33f97be658d31bed4ba93ec101312255;hb=aef8755711a28bb0ecde7780ae6613fcb62cf6f7;hp=3f67a29593bc417fc94fb1f6a7bc15202a621251;hpb=9156ad48338e0306e508ead5c0d9986050744475;p=pandora-kernel.git

diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 3f67a29593bc..31cd817f33f9 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -244,18 +244,6 @@ static int veth_open(struct net_device *dev)
 	return 0;
 }
 
-static int veth_close(struct net_device *dev)
-{
-	struct veth_priv *priv;
-
-	if (netif_carrier_ok(dev)) {
-		priv = netdev_priv(dev);
-		netif_carrier_off(dev);
-		netif_carrier_off(priv->peer);
-	}
-	return 0;
-}
-
 static int veth_dev_init(struct net_device *dev)
 {
 	struct veth_net_stats *stats;
@@ -286,13 +274,50 @@ static void veth_setup(struct net_device *dev)
 	dev->hard_start_xmit = veth_xmit;
 	dev->get_stats = veth_get_stats;
 	dev->open = veth_open;
-	dev->stop = veth_close;
 	dev->ethtool_ops = &veth_ethtool_ops;
 	dev->features |= NETIF_F_LLTX;
 	dev->init = veth_dev_init;
 	dev->destructor = veth_dev_free;
 }
 
+static void veth_change_state(struct net_device *dev)
+{
+	struct net_device *peer;
+	struct veth_priv *priv;
+
+	priv = netdev_priv(dev);
+	peer = priv->peer;
+
+	if (netif_carrier_ok(peer)) {
+		if (!netif_carrier_ok(dev))
+			netif_carrier_on(dev);
+	} else {
+		if (netif_carrier_ok(dev))
+			netif_carrier_off(dev);
+	}
+}
+
+static int veth_device_event(struct notifier_block *unused,
+			     unsigned long event, void *ptr)
+{
+	struct net_device *dev = ptr;
+
+	if (dev->open != veth_open)
+		goto out;
+
+	switch (event) {
+	case NETDEV_CHANGE:
+		veth_change_state(dev);
+		break;
+	}
+out:
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block veth_notifier_block __read_mostly = {
+	.notifier_call	= veth_device_event,
+};
+
 /*
  * netlink interface
  */
@@ -350,7 +375,7 @@ static int veth_newlink(struct net_device *dev,
 	else
 		snprintf(ifname, IFNAMSIZ, DRV_NAME "%%d");
 
-	peer = rtnl_create_link(dev->nd_net, ifname, &veth_link_ops, tbp);
+	peer = rtnl_create_link(dev_net(dev), ifname, &veth_link_ops, tbp);
 	if (IS_ERR(peer))
 		return PTR_ERR(peer);
 
@@ -454,12 +479,14 @@ static struct rtnl_link_ops veth_link_ops = {
 
 static __init int veth_init(void)
 {
+	register_netdevice_notifier(&veth_notifier_block);
 	return rtnl_link_register(&veth_link_ops);
 }
 
 static __exit void veth_exit(void)
 {
 	rtnl_link_unregister(&veth_link_ops);
+	unregister_netdevice_notifier(&veth_notifier_block);
 }
 
 module_init(veth_init);