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rtlwifi: slight optimization of addr compare

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Use possibly more efficient ether_addr_equal_unaligned
instead of memcmp.

Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
dingtianhong 2013-12-26 19:41:30 +08:00 committed by David S. Miller
parent fcad7668fb
commit 4f29739bb0
1 changed files with 2 additions and 2 deletions
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4
drivers/net/wireless/rtlwifi/cam.c
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@ -295,7 +295,7 @@ u8 rtl_cam_get_free_entry(struct ieee80211_hw *hw, u8 *sta_addr)
/* Does STA already exist? */ /* Does STA already exist? */
for (i = 4; i < TOTAL_CAM_ENTRY; i++) { for (i = 4; i < TOTAL_CAM_ENTRY; i++) {
addr = rtlpriv->sec.hwsec_cam_sta_addr[i]; addr = rtlpriv->sec.hwsec_cam_sta_addr[i];
if (memcmp(addr, sta_addr, ETH_ALEN) == 0) if (ether_addr_equal_unaligned(addr, sta_addr))
return i; return i;
} }
/* Get a free CAM entry. */ /* Get a free CAM entry. */
@ -335,7 +335,7 @@ void rtl_cam_del_entry(struct ieee80211_hw *hw, u8 *sta_addr)
addr = rtlpriv->sec.hwsec_cam_sta_addr[i]; addr = rtlpriv->sec.hwsec_cam_sta_addr[i];
bitmap = (rtlpriv->sec.hwsec_cam_bitmap) >> i; bitmap = (rtlpriv->sec.hwsec_cam_bitmap) >> i;
if (((bitmap & BIT(0)) == BIT(0)) && if (((bitmap & BIT(0)) == BIT(0)) &&
(memcmp(addr, sta_addr, ETH_ALEN) == 0)) { (ether_addr_equal_unaligned(addr, sta_addr))) {
/* Remove from HW Security CAM */ /* Remove from HW Security CAM */
eth_zero_addr(rtlpriv->sec.hwsec_cam_sta_addr[i]); eth_zero_addr(rtlpriv->sec.hwsec_cam_sta_addr[i]);
rtlpriv->sec.hwsec_cam_bitmap &= ~(BIT(0) << i); rtlpriv->sec.hwsec_cam_bitmap &= ~(BIT(0) << i);