netdev - [PATCH] mac80211: use list_move instead of list_del/list

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Message-ID: <CAPgLHd_VrjzzfPDsd3KKzgX2bKJ47zUCJmsQO+Q49ajNVLnTVg@mail.gmail.com>
Date:	Thu, 6 Sep 2012 13:20:53 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	linville@...driver.com, johannes@...solutions.net
Cc:	yongjun_wei@...ndmicro.com.cn, linux-wireless@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [PATCH] mac80211: use list_move instead of list_del/list_add

From: Wei Yongjun <yongjun_wei@...ndmicro.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 <yongjun_wei@...ndmicro.com.cn>
---
 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 635c325..7fbf99d 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -227,8 +227,7 @@ 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:


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