+static void alias_set_device(struct alias_device *alias, struct device *dev)
+{
+ if (dev == alias->dep.dev)
+ return;
+
+ device_set_present(&alias->dev, false);
+ device_remove_user(&alias->new_dep);
+ if (alias->dev.active) {
+ if (dev)
+ device_add_user(&alias->new_dep, dev);
+
+ alias->update = true;
+ return;
+ }
+
+ alias->update = false;
+ device_remove_user(&alias->dep);
+ alias->dev.hidden = !dev;
+ if (dev) {
+ device_set_ifindex(&alias->dev, dev->ifindex);
+ strcpy(alias->dev.ifname, dev->ifname);
+ device_broadcast_event(&alias->dev, DEV_EVENT_UPDATE_IFNAME);
+ device_add_user(&alias->dep, dev);
+ } else {
+ alias->dev.ifname[0] = 0;
+ device_broadcast_event(&alias->dev, DEV_EVENT_UPDATE_IFNAME);
+ }
+}
+