staging: ks7010: refactor ks_wlan_set_pmksa function

This commit cleans a bit ks_wlan_set_pmksa function removing
nonsense comments as well as make use of ether_addr_* family
functions written to not do manually things that were being
here. Minor single if brackets has been removed also.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ks7010/ks_wlan_net.c

@@ -1694,68 +1694,65 @@ static int ks_wlan_set_pmksa(struct net_device *dev,
 
 	switch (pmksa->cmd) {
 	case IW_PMKSA_ADD:
-		if (list_empty(&priv->pmklist.head)) {	/* new list */
+		if (list_empty(&priv->pmklist.head)) {
 			for (i = 0; i < PMK_LIST_MAX; i++) {
 				pmk = &priv->pmklist.pmk[i];
-				if (memcmp("\x00\x00\x00\x00\x00\x00",
-					   pmk->bssid, ETH_ALEN) == 0)
-					break; /* loop */
+				if (is_zero_ether_addr(pmk->bssid))
+					break;
 			}
-			memcpy(pmk->bssid, pmksa->bssid.sa_data, ETH_ALEN);
+			ether_addr_copy(pmk->bssid, pmksa->bssid.sa_data);
 			memcpy(pmk->pmkid, pmksa->pmkid, IW_PMKID_LEN);
 			list_add(&pmk->list, &priv->pmklist.head);
 			priv->pmklist.size++;
-			break;	/* case */
+			break;
 		}
 		/* search cache data */
 		list_for_each(ptr, &priv->pmklist.head) {
 			pmk = list_entry(ptr, struct pmk, list);
-			if (memcmp(pmksa->bssid.sa_data, pmk->bssid, ETH_ALEN) == 0) {
+			if (ether_addr_equal(pmksa->bssid.sa_data, pmk->bssid)) {
 				memcpy(pmk->pmkid, pmksa->pmkid, IW_PMKID_LEN);
 				list_move(&pmk->list, &priv->pmklist.head);
-				break; /* list_for_each */
+				break;
 			}
 		}
-		if (ptr != &priv->pmklist.head)	/* not find address. */
-			break;	/* case */
-
-		if (priv->pmklist.size < PMK_LIST_MAX) {	/* new cache data */
+		/* not find address. */
+		if (ptr != &priv->pmklist.head)
+			break;
+		/* new cache data */
+		if (priv->pmklist.size < PMK_LIST_MAX) {
 			for (i = 0; i < PMK_LIST_MAX; i++) {
 				pmk = &priv->pmklist.pmk[i];
-				if (memcmp("\x00\x00\x00\x00\x00\x00",
-					   pmk->bssid, ETH_ALEN) == 0)
-					break; /* loop */
+				if (is_zero_ether_addr(pmk->bssid))
+					break;
 			}
-			memcpy(pmk->bssid, pmksa->bssid.sa_data, ETH_ALEN);
+			ether_addr_copy(pmk->bssid, pmksa->bssid.sa_data);
 			memcpy(pmk->pmkid, pmksa->pmkid, IW_PMKID_LEN);
 			list_add(&pmk->list, &priv->pmklist.head);
 			priv->pmklist.size++;
 		} else { /* overwrite old cache data */
 			pmk = list_entry(priv->pmklist.head.prev, struct pmk,
 					 list);
-			memcpy(pmk->bssid, pmksa->bssid.sa_data, ETH_ALEN);
+			ether_addr_copy(pmk->bssid, pmksa->bssid.sa_data);
 			memcpy(pmk->pmkid, pmksa->pmkid, IW_PMKID_LEN);
 			list_move(&pmk->list, &priv->pmklist.head);
 		}
 		break;
 	case IW_PMKSA_REMOVE:
-		if (list_empty(&priv->pmklist.head)) {	/* list empty */
+		if (list_empty(&priv->pmklist.head))
 			return -EINVAL;
-		}
 		/* search cache data */
 		list_for_each(ptr, &priv->pmklist.head) {
 			pmk = list_entry(ptr, struct pmk, list);
-			if (memcmp(pmksa->bssid.sa_data, pmk->bssid, ETH_ALEN) == 0) {
+			if (ether_addr_equal(pmksa->bssid.sa_data, pmk->bssid)) {
 				eth_zero_addr(pmk->bssid);
 				memset(pmk->pmkid, 0, IW_PMKID_LEN);
 				list_del_init(&pmk->list);
 				break;
 			}
 		}
-		if (ptr == &priv->pmklist.head) {	/* not find address. */
+		/* not find address. */
+		if (ptr == &priv->pmklist.head)
 			return 0;
-		}
-
 		break;
 	case IW_PMKSA_FLUSH:
 		memset(&priv->pmklist, 0, sizeof(priv->pmklist));