net/core/dev.c

9066 int netdev_adjacent_change_prepare(struct net_device *old_dev,
9080 	if (old_dev && new_dev != old_dev)
9081 		netdev_adjacent_dev_disable(dev, old_dev);
9085 		if (old_dev && new_dev != old_dev)
9086 			netdev_adjacent_dev_enable(dev, old_dev);
9094 void netdev_adjacent_change_commit(struct net_device *old_dev,
9103 	if (!new_dev || !old_dev)
9106 	if (new_dev == old_dev)
9109 	netdev_adjacent_dev_enable(dev, old_dev);
9110 	__netdev_upper_dev_unlink(old_dev, dev, &priv);
9114 void netdev_adjacent_change_abort(struct net_device *old_dev,
9126 	if (old_dev && new_dev != old_dev)
9127 		netdev_adjacent_dev_enable(dev, old_dev);