Staging: vt6656: using is_broadcast_ether_addr() to simplify the code

Using is_broadcast_ether_addr() to simplify the code.
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6656/hostap.c

@@ -439,9 +439,7 @@ static int hostap_set_encryption(PSDevice pDevice,
 		return -EINVAL;
 	}
 
-	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
-	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
-	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(param->sta_addr)) {
 		if (param->u.crypt.idx >= MAX_GROUP_KEY)
 			return -EINVAL;
         iNodeIndex = 0;
@@ -663,9 +661,7 @@ static int hostap_get_encryption(PSDevice pDevice,
 
 	param->u.crypt.err = 0;
 
-	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
-	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
-	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(param->sta_addr)) {
         iNodeIndex = 0;
 	} else {
 	    if (BSSbIsSTAInNodeDB(pDevice, param->sta_addr, &iNodeIndex) == FALSE) {