}
EXPORT_SYMBOL_GPL(is_skb_forwardable);
+int __dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
+{
+ if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
+ if (skb_copy_ubufs(skb, GFP_ATOMIC)) {
+ atomic_long_inc(&dev->rx_dropped);
+ kfree_skb(skb);
+ return NET_RX_DROP;
+ }
+ }
+
+ if (unlikely(!is_skb_forwardable(dev, skb))) {
+ atomic_long_inc(&dev->rx_dropped);
+ kfree_skb(skb);
+ return NET_RX_DROP;
+ }
+
+ skb_scrub_packet(skb, true);
+ skb->protocol = eth_type_trans(skb, dev);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(__dev_forward_skb);
+
/**
* dev_forward_skb - loopback an skb to another netif
*
*/
int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
{
- if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
- if (skb_copy_ubufs(skb, GFP_ATOMIC)) {
- atomic_long_inc(&dev->rx_dropped);
- kfree_skb(skb);
- return NET_RX_DROP;
- }
- }
-
- if (unlikely(!is_skb_forwardable(dev, skb))) {
- atomic_long_inc(&dev->rx_dropped);
- kfree_skb(skb);
- return NET_RX_DROP;
- }
-
- skb_scrub_packet(skb, true);
- skb->protocol = eth_type_trans(skb, dev);
-
- return netif_rx_internal(skb);
+ return __dev_forward_skb(dev, skb) ?: netif_rx_internal(skb);
}
EXPORT_SYMBOL_GPL(dev_forward_skb);
*/
call_netdevice_notifiers(NETDEV_UNREGISTER, dev);
- if (!dev->rtnl_link_ops ||
- dev->rtnl_link_state == RTNL_LINK_INITIALIZED)
- rtmsg_ifinfo(RTM_DELLINK, dev, ~0U, GFP_KERNEL);
-
/*
* Flush the unicast and multicast chains
*/
if (dev->netdev_ops->ndo_uninit)
dev->netdev_ops->ndo_uninit(dev);
+ if (!dev->rtnl_link_ops ||
+ dev->rtnl_link_state == RTNL_LINK_INITIALIZED)
+ rtmsg_ifinfo(RTM_DELLINK, dev, ~0U, GFP_KERNEL);
+
/* Notifier chain MUST detach us all upper devices. */
WARN_ON(netdev_has_any_upper_dev(dev));
free_pcpu:
free_percpu(dev->pcpu_refcnt);
- netif_free_tx_queues(dev);
-#ifdef CONFIG_SYSFS
- kfree(dev->_rx);
-#endif
-
free_dev:
netdev_freemem(dev);
return NULL;