[PATCH 12/21] bridge: slight optimization of addr compare

Ding Tianhong
2013-12-23T05:11:20Z

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

Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: David Miller <davem@davemloft.net>
Cc: bridge@lists.linux-foundation.org
Cc: netdev@vger.kernel.org
Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
---
net/bridge/br_stp_if.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index 656a6f3..04217d1 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -229,7 +229,7 @@ bool br_stp_recalculate_bridge_id(struct net_bridge *br)

list_for_each_entry(p, &br->port_list, list) {
if (addr == br_mac_zero ||
- memcmp(p->dev->dev_addr, addr, ETH_ALEN) < 0)
+ !ether_addr_equal_unaligned(p->dev->dev_addr, addr) < 0)
addr = p->dev->dev_addr;

}
--
1.8.0