[PATCH v2 08/20] zd1211rw: slight optimization of addr compare

From: Ding Tianhong
Date: Tue Dec 24 2013 - 06:29:52 EST


Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Daniel Drake <dsd@xxxxxxxxxx>
Cc: Ulrich Kunitz <kune@xxxxxxxxxxxxxx>
Cc: "John W. Linville" <linville@xxxxxxxxxxxxx>
Cc: linux-wireless@xxxxxxxxxxxxxxx
Cc: netdev@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Tan Xiaojun <tanxiaojun@xxxxxxxxxx>
Signed-off-by: Ding Tianhong <dingtianhong@xxxxxxxxxx>
---
drivers/net/wireless/zd1211rw/zd_mac.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index eff79a3..e7af261 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -532,9 +532,8 @@ void zd_mac_tx_failed(struct urb *urb)
tx_hdr = (struct ieee80211_hdr *)skb->data;

/* we skip all frames not matching the reported destination */
- if (unlikely(memcmp(tx_hdr->addr1, tx_status->mac, ETH_ALEN))) {
+ if (unlikely(!ether_addr_equal(tx_hdr->addr1, tx_status->mac)))
continue;
- }

/* we skip all frames not matching the reported final rate */

@@ -997,7 +996,7 @@ static int filter_ack(struct ieee80211_hw *hw, struct ieee80211_hdr *rx_hdr,
continue;

tx_hdr = (struct ieee80211_hdr *)skb->data;
- if (likely(!memcmp(tx_hdr->addr2, rx_hdr->addr1, ETH_ALEN)))
+ if (likely(ether_addr_equal(tx_hdr->addr2, rx_hdr->addr1)))
{
found = 1;
break;
--
1.8.0


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