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orinoco: use is_zero_ether_addr() instead of memcmp() 

Using is_zero_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@trendmicro.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Wei Yongjun 2012-08-23 14:55:02 +08:00 committed by John W. Linville
parent 7949d20c13
commit 6977a6b01d
1 changed files with 3 additions and 4 deletions
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7
drivers/net/wireless/orinoco/wext.c
View File

@ -7,6 +7,7 @@
#include <linux/if_arp.h>
#include <linux/wireless.h>
#include <linux/ieee80211.h>
#include <linux/etherdevice.h>
#include <net/iw_handler.h>
#include <net/cfg80211.h>
#include <net/cfg80211-wext.h>
@ -159,15 +160,13 @@ static int orinoco_ioctl_setwap(struct net_device *dev,
struct orinoco_private *priv = ndev_priv(dev);
int err = -EINPROGRESS; /* Call commit handler */
unsigned long flags;
static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
/* Enable automatic roaming - no sanity checks are needed */
if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 ||
memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) {
if (is_zero_ether_addr(ap_addr->sa_data) ||
is_broadcast_ether_addr(ap_addr->sa_data)) {
priv->bssid_fixed = 0;
memset(priv->desired_bssid, 0, ETH_ALEN);