linux-kernel - [PATCH v3 03/19] net: atl1: slight optimization of addr compare

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Message-ID: <52BA50CD.7010601@huawei.com>
Date:	Wed, 25 Dec 2013 11:28:13 +0800
From:	Ding Tianhong <dingtianhong@...wei.com>
To:	Jay Cliburn <jcliburn@...il.com>,
	Chris Snook <chris.snook@...il.com>,
	Netdev <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH v3 03/19] net: atl1: slight optimization of addr compare

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

Cc: Jay Cliburn <jcliburn@...il.com>
Cc: Chris Snook <chris.snook@...il.com>
Cc: netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Weilong Chen <chenweilong@...wei.com>
Signed-off-by: Ding Tianhong <dingtianhong@...wei.com>
---
 drivers/net/ethernet/atheros/atlx/atl1.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/atheros/atlx/atl1.c b/drivers/net/ethernet/atheros/atlx/atl1.c
index 538211d..55d86ec 100644
--- a/drivers/net/ethernet/atheros/atlx/atl1.c
+++ b/drivers/net/ethernet/atheros/atlx/atl1.c
@@ -3122,7 +3122,8 @@ static void atl1_remove(struct pci_dev *pdev)
 	 * from the BIOS during POST.  If we've been messing with the MAC
 	 * address, we need to save the permanent one.
 	 */
-	if (memcmp(adapter->hw.mac_addr, adapter->hw.perm_mac_addr, ETH_ALEN)) {
+	if (!ether_addr_equal_unaligned(adapter->hw.mac_addr,
+					adapter->hw.perm_mac_addr)) {
 		memcpy(adapter->hw.mac_addr, adapter->hw.perm_mac_addr,
 			ETH_ALEN);
 		atl1_set_mac_addr(&adapter->hw);
-- 
1.8.0


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