Sep 06 2012

mac80211: use list_move instead of list_del/list_add 

Author: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

Using list_move() instead of list_del() + list_add().

spatch with a semantic match is used to found this problem.
(http://coccinelle.lip6.fr/)

Signed-off-by: Wei Yongjun 
Signed-off-by: Johannes Berg 

---
 net/mac80211/offchannel.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
 
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index 507121d..83608ac 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -233,8 +233,7 @@ static void ieee80211_hw_roc_start(struct work_struct *work)
 			u32 dur = dep->duration;
 			dep->duration = dur - roc->duration;
 			roc->duration = dur;
-			list_del(&dep->list);
-			list_add(&dep->list, &roc->list);
+			list_move(&dep->list, &roc->list);
 		}
 	}
  out_unlock:

qlambert