net/core/dev.c

1679 static int call_netdevice_notifier(struct notifier_block *nb, unsigned long val,
1686 	return nb->notifier_call(nb, val, &info);
1689 static int call_netdevice_register_notifiers(struct notifier_block *nb,
1694 	err = call_netdevice_notifier(nb, NETDEV_REGISTER, dev);
1702 	call_netdevice_notifier(nb, NETDEV_UP, dev);
1706 static void call_netdevice_unregister_notifiers(struct notifier_block *nb,
1710 		call_netdevice_notifier(nb, NETDEV_GOING_DOWN,
1712 		call_netdevice_notifier(nb, NETDEV_DOWN, dev);
1714 	call_netdevice_notifier(nb, NETDEV_UNREGISTER, dev);
1717 static int call_netdevice_register_net_notifiers(struct notifier_block *nb,
1724 		err = call_netdevice_register_notifiers(nb, dev);
1732 		call_netdevice_unregister_notifiers(nb, dev);
1736 static void call_netdevice_unregister_net_notifiers(struct notifier_block *nb,
1742 		call_netdevice_unregister_notifiers(nb, dev);
1749  * @nb: notifier
1761 int register_netdevice_notifier(struct notifier_block *nb)
1769 	err = raw_notifier_chain_register(&netdev_chain, nb);
1775 		err = call_netdevice_register_net_notifiers(nb, net);
1787 		call_netdevice_unregister_net_notifiers(nb, net);
1789 	raw_notifier_chain_unregister(&netdev_chain, nb);
1796  * @nb: notifier
1808 int unregister_netdevice_notifier(struct notifier_block *nb)
1816 	err = raw_notifier_chain_unregister(&netdev_chain, nb);
1821 		call_netdevice_unregister_net_notifiers(nb, net);
1831 					     struct notifier_block *nb,
1836 	err = raw_notifier_chain_register(&net->netdev_chain, nb);
1842 	err = call_netdevice_register_net_notifiers(nb, net);
1849 	raw_notifier_chain_unregister(&net->netdev_chain, nb);
1854 					       struct notifier_block *nb)
1858 	err = raw_notifier_chain_unregister(&net->netdev_chain, nb);
1862 	call_netdevice_unregister_net_notifiers(nb, net);
1869  * @nb: notifier
1881 int register_netdevice_notifier_net(struct net *net, struct notifier_block *nb)
1886 	err = __register_netdevice_notifier_net(net, nb, false);
1896  * @nb: notifier
1909 				      struct notifier_block *nb)
1914 	err = __unregister_netdevice_notifier_net(net, nb);
1922 					  struct notifier_block *nb)
1924 	__unregister_netdevice_notifier_net(src_net, nb);
1925 	__register_netdevice_notifier_net(dst_net, nb, true);
1929 					struct notifier_block *nb,
1935 	err = __register_netdevice_notifier_net(dev_net(dev), nb, false);
1937 		nn->nb = nb;
1946 					  struct notifier_block *nb,
1953 	err = __unregister_netdevice_notifier_net(dev_net(dev), nb);
1965 		__move_netdevice_notifier_net(dev_net(dev), net, nn->nb);