linux-kernel - [PATCH v2 13/20] isdn: slight optimization of addr compare

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Message-ID: <52B96FFA.209@huawei.com>
Date:	Tue, 24 Dec 2013 19:28:58 +0800
From:	Ding Tianhong <dingtianhong@...wei.com>
To:	Karsten Keil <isdn@...ux-pingi.de>,
	Netdev <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 13/20] isdn: slight optimization of addr compare

Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Karsten Keil <isdn@...ux-pingi.de>
Cc: netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
Signed-off-by: Ding Tianhong <dingtianhong@...wei.com>
---
 drivers/isdn/i4l/isdn_net.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c
index 8b98d53..d9aebbc 100644
--- a/drivers/isdn/i4l/isdn_net.c
+++ b/drivers/isdn/i4l/isdn_net.c
@@ -1371,7 +1371,7 @@ isdn_net_type_trans(struct sk_buff *skb, struct net_device *dev)
 	eth = eth_hdr(skb);
 
 	if (*eth->h_dest & 1) {
-		if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
+		if (ether_addr_equal(eth->h_dest, dev->broadcast))
 			skb->pkt_type = PACKET_BROADCAST;
 		else
 			skb->pkt_type = PACKET_MULTICAST;
@@ -1382,7 +1382,7 @@ isdn_net_type_trans(struct sk_buff *skb, struct net_device *dev)
 	 */
 
 	else if (dev->flags & (IFF_PROMISC /*| IFF_ALLMULTI*/)) {
-		if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
+		if (!ether_addr_equal(eth->h_dest, dev->dev_addr))
 			skb->pkt_type = PACKET_OTHERHOST;
 	}
 	if (ntohs(eth->h_proto) >= ETH_P_802_3_MIN)
-- 
1.8.0



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