media: dvb_core: slight optimization of addr compare

Use the recently added and possibly more efficient ether_addr_equal_unaligned to instead of memcmp.

Cc Mauro Carvalho Chehab <[email protected]>

Cc [email protected]

Cc [email protected]

Signed-off-by Yang Yingliang <[email protected]>

Signed-off-by Ding Tianhong <[email protected]>

---
 drivers/media/dvb-core/dvb_net.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

drivers/media/dvb-core/dvb_net.c +5 -5

index f91c80c..ff00f97 100644
@@ -179,7 +179,7 @@ static __be16 dvb_net_eth_type_trans(struct sk_buff *skb,
 	eth = eth_hdr(skb);
 
 	if (*eth->h_dest & 1) {
-		if(memcmp(eth->h_dest,dev->broadcast, ETH_ALEN)==0)
+		if(ether_addr_equal_unaligned(eth->h_dest, dev->broadcast))
 			skb->pkt_type=PACKET_BROADCAST;
 		else
 			skb->pkt_type=PACKET_MULTICAST;

@@ -674,11 +674,11 @@ static void dvb_net_ule( struct net_device *dev, const u8 *buf, size_t buf_len )
 					if (priv->rx_mode != RX_MODE_PROMISC) {
 						if (priv->ule_skb->data[0] & 0x01) {
 							/* multicast or broadcast */
-							if (memcmp(priv->ule_skb->data, bc_addr, ETH_ALEN)) {
+							if (!ether_addr_equal_unaligned(priv->ule_skb->data, bc_addr)) {
 								/* multicast */
 								if (priv->rx_mode == RX_MODE_MULTI) {
 									int i;
-									for(i = 0; i < priv->multi_num && memcmp(priv->ule_skb->data, priv->multi_macs[i], ETH_ALEN); i++)
+									for(i = 0; i < priv->multi_num && !ether_addr_equal_unaligned(priv->ule_skb->data, priv->multi_macs[i]); i++)
 										;
 									if (i == priv->multi_num)
 										drop = 1;

@@ -688,7 +688,7 @@ static void dvb_net_ule( struct net_device *dev, const u8 *buf, size_t buf_len )
 							}
 							/* else: broadcast */
 						}
-						else if (memcmp(priv->ule_skb->data, dev->dev_addr, ETH_ALEN))
+						else if (!ether_addr_equal_unaligned(priv->ule_skb->data, dev->dev_addr))
 							drop = 1;
 						/* else: destination address matches the MAC address of our receiver device */
 					}

@@ -837,7 +837,7 @@ static void dvb_net_sec(struct net_device *dev,
 	}
 	if (pkt[5] & 0x02) {
 		/* handle LLC/SNAP, see rfc-1042 */
-		if (pkt_len < 24 || memcmp(&pkt[12], "\xaa\xaa\x03\0\0\0", 6)) {
+		if (pkt_len < 24 || !ether_addr_equal_unaligned(&pkt[12], "\xaa\xaa\x03\0\0\0")) {
 			stats->rx_dropped++;
 			return;
 		}