* register_netdevice_notifier(). The notifier is unlinked into the
* kernel structures and may then be reused. A negative errno code
* is returned on a failure.
+ *
+ * After unregistering unregister and down device events are synthesized
+ * for all devices on the device list to the removed notifier to remove
+ * the need for special case cleanup code.
*/
int unregister_netdevice_notifier(struct notifier_block *nb)
{
+ struct net_device *dev;
+ struct net *net;
int err;
rtnl_lock();
err = raw_notifier_chain_unregister(&netdev_chain, nb);
+ if (err)
+ goto unlock;
+
+ for_each_net(net) {
+ for_each_netdev(net, dev) {
+ if (dev->flags & IFF_UP) {
+ nb->notifier_call(nb, NETDEV_GOING_DOWN, dev);
+ nb->notifier_call(nb, NETDEV_DOWN, dev);
+ }
+ nb->notifier_call(nb, NETDEV_UNREGISTER, dev);
+ nb->notifier_call(nb, NETDEV_UNREGISTER_BATCH, dev);
+ }
+ }
+unlock:
rtnl_unlock();
return err;
}
return NET_RX_DROP;
}
skb->skb_iif = 0;
- skb_set_dev(skb, dev);
+ skb->dev = dev;
+ skb_dst_drop(skb);
skb->tstamp.tv64 = 0;
skb->pkt_type = PACKET_HOST;
skb->protocol = eth_type_trans(skb, dev);
+ skb->mark = 0;
+ secpath_reset(skb);
+ nf_reset(skb);
return netif_rx(skb);
}
EXPORT_SYMBOL_GPL(dev_forward_skb);
}
EXPORT_SYMBOL(netif_device_attach);
-/**
- * skb_dev_set -- assign a new device to a buffer
- * @skb: buffer for the new device
- * @dev: network device
- *
- * If an skb is owned by a device already, we have to reset
- * all data private to the namespace a device belongs to
- * before assigning it a new device.
- */
-#ifdef CONFIG_NET_NS
-void skb_set_dev(struct sk_buff *skb, struct net_device *dev)
-{
- skb_dst_drop(skb);
- if (skb->dev && !net_eq(dev_net(skb->dev), dev_net(dev))) {
- secpath_reset(skb);
- nf_reset(skb);
- skb_init_secmark(skb);
- skb->mark = 0;
- skb->priority = 0;
- skb->nf_trace = 0;
- skb->ipvs_property = 0;
-#ifdef CONFIG_NET_SCHED
- skb->tc_index = 0;
-#endif
- }
- skb->dev = dev;
-}
-EXPORT_SYMBOL(skb_set_dev);
-#endif /* CONFIG_NET_NS */
-
static void skb_warn_bad_offload(const struct sk_buff *skb)
{
static const netdev_features_t null_features = 0;