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Subject[PATCH 18/21] cw1200: slight optimization of addr compare
Use the recently added and possibly more efficient
ether_addr_equal_unaligned to instead of memcmp.

Cc: Solomon Peachy <pizza@shaftnet.org>
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>
---
drivers/net/wireless/cw1200/sta.c | 4 ++--
drivers/net/wireless/cw1200/txrx.c | 7 +++----
2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/cw1200/sta.c b/drivers/net/wireless/cw1200/sta.c
index 010b252..f5d1c83 100644
--- a/drivers/net/wireless/cw1200/sta.c
+++ b/drivers/net/wireless/cw1200/sta.c
@@ -555,8 +555,8 @@ u64 cw1200_prepare_multicast(struct ieee80211_hw *hw,
pr_debug("[STA] multicast: %pM\n", ha->addr);
memcpy(&priv->multicast_filter.macaddrs[count],
ha->addr, ETH_ALEN);
- if (memcmp(ha->addr, broadcast_ipv4, ETH_ALEN) &&
- memcmp(ha->addr, broadcast_ipv6, ETH_ALEN))
+ if (!ether_addr_equal_unaligned(ha->addr, broadcast_ipv4) &&
+ !ether_addr_equal_unaligned(ha->addr, broadcast_ipv6))
priv->has_multicast_subscription = true;
count++;
}
diff --git a/drivers/net/wireless/cw1200/txrx.c b/drivers/net/wireless/cw1200/txrx.c
index e824d4d..bb9eb7b 100644
--- a/drivers/net/wireless/cw1200/txrx.c
+++ b/drivers/net/wireless/cw1200/txrx.c
@@ -816,7 +816,7 @@ static int cw1200_handle_pspoll(struct cw1200_common *priv,

if (priv->join_status != CW1200_JOIN_STATUS_AP)
goto done;
- if (memcmp(priv->vif->addr, pspoll->bssid, ETH_ALEN))
+ if (!ether_addr_equal_unaligned(priv->vif->addr, pspoll->bssid))
goto done;

rcu_read_lock();
@@ -1166,8 +1166,7 @@ void cw1200_rx_cb(struct cw1200_common *priv,
return;
} else if (ieee80211_is_beacon(frame->frame_control) &&
!arg->status && priv->vif &&
- !memcmp(ieee80211_get_SA(frame), priv->vif->bss_conf.bssid,
- ETH_ALEN)) {
+ ether_addr_equal_unaligned(ieee80211_get_SA(frame), priv->vif->bss_conf.bssid)) {
const u8 *tim_ie;
u8 *ies = ((struct ieee80211_mgmt *)
(skb->data))->u.beacon.variable;
@@ -1314,7 +1313,7 @@ int cw1200_find_link_id(struct cw1200_common *priv, const u8 *mac)
int i, ret = 0;
spin_lock_bh(&priv->ps_state_lock);
for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
- if (!memcmp(mac, priv->link_id_db[i].mac, ETH_ALEN) &&
+ if (ether_addr_equal_unaligned(mac, priv->link_id_db[i].mac) &&
priv->link_id_db[i].status) {
priv->link_id_db[i].timestamp = jiffies;
ret = i + 1;
--
1.8.0



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