net: ipv6: use list_move instead of list_del/list_add

weiyj · davem330 · commit c882219ae43e · 2016-07-30T20:41:59.000-07:00
Using list_move() instead of list_del() + list_add().

Signed-off-by: Wei Yongjun &lt;weiyj.lk@gmail.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
@@ -3624,8 +3624,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 			state = ifa->state;
 			ifa->state = INET6_IFADDR_STATE_DEAD;
 
-			list_del(&ifa->if_list);
-			list_add(&ifa->if_list, &del_list);
+			list_move(&ifa->if_list, &del_list);
 		}
 
 		spin_unlock_bh(&ifa->lock);

Original file line number	Diff line number	Diff line change
`@@ -3624,8 +3624,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)`
`3624`	`3624`	`state = ifa->state;`
`3625`	`3625`	`ifa->state = INET6_IFADDR_STATE_DEAD;`
`3626`	`3626`
`3627`		`- list_del(&ifa->if_list);`
`3628`		`- list_add(&ifa->if_list, &del_list);`
	`3627`	`+ list_move(&ifa->if_list, &del_list);`
`3629`	`3628`	`}`
`3630`	`3629`
`3631`	`3630`	`spin_unlock_bh(&ifa->lock);`