netdev - [PATCH] airo: use is_zero_ether_addr() and is_broadcast_ether

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Message-ID: <CAPgLHd8MssMFM7G8SpAQQAr-i6nbgtHEPEPKC3ggGLAegpeRGw@mail.gmail.com>
Date:	Thu, 23 Aug 2012 15:17:09 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	linville@...driver.com
Cc:	yongjun_wei@...ndmicro.com.cn, linux-wireless@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [PATCH] airo: use is_zero_ether_addr() and is_broadcast_ether_addr()

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

Using is_zero_ether_addr() and is_broadcast_ether_addr() instead of
directly use memcmp() to determine if the ethernet address is all zeros.

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>
---
 drivers/net/wireless/airo.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index f9f15bb..17c599d 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -5976,13 +5976,11 @@ static int airo_set_wap(struct net_device *dev,
 	Cmd cmd;
 	Resp rsp;
 	APListRid APList_rid;
-	static const u8 any[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
-	static const u8 off[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
 
 	if (awrq->sa_family != ARPHRD_ETHER)
 		return -EINVAL;
-	else if (!memcmp(any, awrq->sa_data, ETH_ALEN) ||
-	         !memcmp(off, awrq->sa_data, ETH_ALEN)) {
+	else if (is_broadcast_ether_addr(awrq->sa_data) ||
+		 is_zero_ether_addr(awrq->sa_data)) {
 		memset(&cmd, 0, sizeof(cmd));
 		cmd.cmd=CMD_LOSE_SYNC;
 		if (down_interruptible(&local->sem))


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