[PATCH 10/11] at76c50x-usb: use ether_addr_equal_64bits

Julia Lawall
2013-12-30T17:19:09Z

From: Julia Lawall <Julia.Lawall@lip6.fr>

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:
at76_priv defined in drivers/net/wireless/at76c50x-usb.h and
ieee80211_mgmt defined in include/linux/ieee80211.h

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

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
The semantic patch used is rather long and can be found in message 0 of
this patch series.

drivers/net/wireless/at76c50x-usb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c
index 34c8a33..031d4ec 100644
--- a/drivers/net/wireless/at76c50x-usb.c
+++ b/drivers/net/wireless/at76c50x-usb.c
@@ -1721,7 +1721,7 @@ static void at76_mac80211_tx(struct ieee80211_hw *hw,
* following workaround is necessary. If the TX frame is an
* authentication frame extract the bssid and send the CMD_JOIN. */
if (mgmt->frame_control & cpu_to_le16(IEEE80211_STYPE_AUTH)) {
- if (!ether_addr_equal(priv->bssid, mgmt->bssid)) {
+ if (!ether_addr_equal_64bits(priv->bssid, mgmt->bssid)) {
memcpy(priv->bssid, mgmt->bssid, ETH_ALEN);
ieee80211_queue_work(hw, &priv->work_join_bssid);
dev_kfree_skb_any(skb);