ath5k: use ether_addr_equal_64bits

Ether_addr_equal_64bits is more efficient than ether_addr_equal, and can be
used when each argument is an array within a structure that contains at
least two bytes of data beyond the array.

The structures involved are:
ieee80211_mgmt defined in include/linux/ieee80211.h and
ath_common defined in drivers/net/wireless/ath/ath.h

This was done using Coccinelle (http://coccinelle.lip6.fr/).

Signed-off-by: Julia Lawall <[email protected]>
Signed-off-by: John W. Linville <[email protected]>

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 69f58b073e85ff1a183ec1f06e803ff9da00806c..6396ad4bce67c8f005ec5373bd214e0d7c30712b 100644 (file)
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -1245,7 +1245,7 @@ ath5k_check_ibss_tsf(struct ath5k_hw *ah, struct sk_buff *skb,
 
        if (ieee80211_is_beacon(mgmt->frame_control) &&
            le16_to_cpu(mgmt->u.beacon.capab_info) & WLAN_CAPABILITY_IBSS &&
-           ether_addr_equal(mgmt->bssid, common->curbssid)) {
+           ether_addr_equal_64bits(mgmt->bssid, common->curbssid)) {
                /*
                 * Received an IBSS beacon with the same BSSID. Hardware *must*
                 * have updated the local TSF. We have to work around various
@@ -1309,7 +1309,7 @@ ath5k_update_beacon_rssi(struct ath5k_hw *ah, struct sk_buff *skb, int rssi)
 
        /* only beacons from our BSSID */
        if (!ieee80211_is_beacon(mgmt->frame_control) ||
-           !ether_addr_equal(mgmt->bssid, common->curbssid))
+           !ether_addr_equal_64bits(mgmt->bssid, common->curbssid))
                return;
 
        ewma_add(&ah->ah_beacon_rssi_avg, rssi);