Return-path: Received: from mail-qa0-f46.google.com ([209.85.216.46]:43534 "EHLO mail-qa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757454Ab2HWGyG (ORCPT ); Thu, 23 Aug 2012 02:54:06 -0400 MIME-Version: 1.0 Date: Thu, 23 Aug 2012 14:54:05 +0800 Message-ID: (sfid-20120823_085424_623983_6875D8AF) Subject: [PATCH] ipw2200: use is_zero_ether_addr() and is_broadcast_ether_addr() From: Wei Yongjun To: stas.yakovlev@gmail.com, linville@tuxdriver.com Cc: yongjun_wei@trendmicro.com.cn, linux-wireless@vger.kernel.org, netdev@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Wei Yongjun 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 --- drivers/net/wireless/ipw2x00/ipw2200.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c index 0df4591..935120f 100644 --- a/drivers/net/wireless/ipw2x00/ipw2200.c +++ b/drivers/net/wireless/ipw2x00/ipw2200.c @@ -9037,18 +9037,11 @@ static int ipw_wx_set_wap(struct net_device *dev, { struct ipw_priv *priv = libipw_priv(dev); - static const unsigned char any[] = { - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff - }; - static const unsigned char off[] = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 - }; - if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) return -EINVAL; mutex_lock(&priv->mutex); - if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) || - !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) { + if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data) || + is_zero_ether_addr(wrqu->ap_addr.sa_data)) { /* we disable mandatory BSSID association */ IPW_DEBUG_WX("Setting AP BSSID to ANY\n"); priv->config &= ~CFG_STATIC_BSSID;