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>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/net/wireless/orinoco/wext.c b/drivers/net/wireless/orinoco/wext.c
index 33747e131a96..3b5508f982e8 100644
--- a/drivers/net/wireless/orinoco/wext.c
+++ b/drivers/net/wireless/orinoco/wext.c
@@ -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);