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ipw2x00: slight optimization of addr compare

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Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Stanislav Yakovlev <stas.yakovlev@gmail.com>
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 19:41:23 +08:00
committed by David S. Miller
parent 35df5388ac
commit 36325f3a9f
2 changed files with 22 additions and 22 deletions
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10
drivers/net/wireless/ipw2x00/libipw_rx.c
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@@ -874,13 +874,13 @@ void libipw_rx_any(struct libipw_device *ieee,
switch (ieee->iw_mode) {
case IW_MODE_ADHOC:
/* our BSS and not from/to DS */
if (memcmp(hdr->addr3, ieee->bssid, ETH_ALEN) == 0)
if (ether_addr_equal(hdr->addr3, ieee->bssid))
if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == 0) {
/* promisc: get all */
if (ieee->dev->flags & IFF_PROMISC)
is_packet_for_us = 1;
/* to us */
else if (memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN) == 0)
else if (ether_addr_equal(hdr->addr1, ieee->dev->dev_addr))
is_packet_for_us = 1;
/* mcast */
else if (is_multicast_ether_addr(hdr->addr1))
@@ -889,18 +889,18 @@ void libipw_rx_any(struct libipw_device *ieee,
break;
case IW_MODE_INFRA:
/* our BSS (== from our AP) and from DS */
if (memcmp(hdr->addr2, ieee->bssid, ETH_ALEN) == 0)
if (ether_addr_equal(hdr->addr2, ieee->bssid))
if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS) {
/* promisc: get all */
if (ieee->dev->flags & IFF_PROMISC)
is_packet_for_us = 1;
/* to us */
else if (memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN) == 0)
else if (ether_addr_equal(hdr->addr1, ieee->dev->dev_addr))
is_packet_for_us = 1;
/* mcast */
else if (is_multicast_ether_addr(hdr->addr1)) {
/* not our own packet bcasted from AP */
if (memcmp(hdr->addr3, ieee->dev->dev_addr, ETH_ALEN))
if (!ether_addr_equal(hdr->addr3, ieee->dev->dev_addr))
is_packet_for_us = 1;
}
}