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mac80211: use compare_ether_addr on MAC addresses instead of memcmp

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Because of the constant size and guaranteed 16 bit alignment, the inline
compare_ether_addr function is much cheaper than calling memcmp.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau
2012-03-01 15:22:09 +01:00
committed by John W. Linville
parent 4d196e4b2f
commit 888d04dfbe
10 changed files with 53 additions and 42 deletions
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3
net/mac80211/status.c
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@@ -10,6 +10,7 @@
*/
#include <linux/export.h>
#include <linux/etherdevice.h>
#include <net/mac80211.h>
#include <asm/unaligned.h>
#include "ieee80211_i.h"
@@ -377,7 +378,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
for_each_sta_info(local, hdr->addr1, sta, tmp) {
/* skip wrong virtual interface */
if (memcmp(hdr->addr2, sta->sdata->vif.addr, ETH_ALEN))
if (compare_ether_addr(hdr->addr2, sta->sdata->vif.addr))
continue;
if (info->flags & IEEE80211_TX_STATUS_EOSP)