[IEEE80211] ipw2200: Simplify multicast checks.

From: Stephen Hemminger <shemminger@osdl.org>

is_multicast_ether_addr() accepts broadcast too, so the
is_broadcast_ether_addr() calls are redundant.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/wireless/ipw2200.c

@@ -7456,8 +7456,7 @@ static void ipw_handle_data_packet(struct ipw_priv *priv,
 	/* HW decrypt will not clear the WEP bit, MIC, PN, etc. */
 	hdr = (struct ieee80211_hdr_4addr *)rxb->skb->data;
 	if (priv->ieee->iw_mode != IW_MODE_MONITOR &&
-	    ((is_multicast_ether_addr(hdr->addr1) ||
-	      is_broadcast_ether_addr(hdr->addr1)) ?
+	    (is_multicast_ether_addr(hdr->addr1) ?
 	     !priv->ieee->host_mc_decrypt : !priv->ieee->host_decrypt))
 		ipw_rebuild_decrypted_skb(priv, rxb->skb);
 
@@ -7648,8 +7647,7 @@ static inline int is_network_packet(struct ipw_priv *priv,
 			return 0;
 
 		/* {broad,multi}cast packets to our BSSID go through */
-		if (is_multicast_ether_addr(header->addr1) ||
-		    is_broadcast_ether_addr(header->addr1))
+		if (is_multicast_ether_addr(header->addr1))
 			return !memcmp(header->addr3, priv->bssid, ETH_ALEN);
 
 		/* packets to our adapter go through */
@@ -7662,8 +7660,7 @@ static inline int is_network_packet(struct ipw_priv *priv,
 			return 0;
 
 		/* {broad,multi}cast packets to our BSS go through */
-		if (is_multicast_ether_addr(header->addr1) ||
-		    is_broadcast_ether_addr(header->addr1))
+		if (is_multicast_ether_addr(header->addr1))
 			return !memcmp(header->addr2, priv->bssid, ETH_ALEN);
 
 		/* packets to our adapter go through */
@@ -9657,8 +9654,7 @@ static inline int ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb,
 	switch (priv->ieee->iw_mode) {
 	case IW_MODE_ADHOC:
 		hdr_len = IEEE80211_3ADDR_LEN;
-		unicast = !(is_multicast_ether_addr(hdr->addr1) ||
-			    is_broadcast_ether_addr(hdr->addr1));
+		unicast = !is_multicast_ether_addr(hdr->addr1);
 		id = ipw_find_station(priv, hdr->addr1);
 		if (id == IPW_INVALID_STATION) {
 			id = ipw_add_station(priv, hdr->addr1);
@@ -9673,8 +9669,7 @@ static inline int ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb,
 
 	case IW_MODE_INFRA:
 	default:
-		unicast = !(is_multicast_ether_addr(hdr->addr3) ||
-			    is_broadcast_ether_addr(hdr->addr3));
+		unicast = !is_multicast_ether_addr(hdr->addr3);
 		hdr_len = IEEE80211_3ADDR_LEN;
 		id = 0;
 		break;

net/ieee80211/ieee80211_rx.c

@@ -410,9 +410,8 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 		return 1;
 	}
 
-	if ((is_multicast_ether_addr(hdr->addr1) ||
-	     is_broadcast_ether_addr(hdr->addr2)) ? ieee->host_mc_decrypt :
-	    ieee->host_decrypt) {
+	if (is_multicast_ether_addr(hdr->addr1)
+	    ? ieee->host_mc_decrypt : ieee->host_decrypt) {
 		int idx = 0;
 		if (skb->len >= hdrlen + 3)
 			idx = skb->data[hdrlen + 3] >> 6;