mwl8k: Do not expire eapol frames

This can cause issues when clients try to connect when the
traffic is heavy

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwl8k.c

@@ -1851,6 +1851,7 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw,
 	bool start_ba_session = false;
 	bool mgmtframe = false;
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
+	bool eapol_frame = false;
 
 	wh = (struct ieee80211_hdr *)skb->data;
 	if (ieee80211_is_data_qos(wh->frame_control))
@@ -1858,6 +1859,9 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw,
 	else
 		qos = 0;
 
+	if (skb->protocol == cpu_to_be16(ETH_P_PAE))
+		eapol_frame = true;
+
 	if (ieee80211_is_mgmt(wh->frame_control))
 		mgmtframe = true;
 
@@ -1916,9 +1920,8 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw,
 
 	txpriority = index;
 
-	if (priv->ap_fw && sta && sta->ht_cap.ht_supported
-			&& skb->protocol != cpu_to_be16(ETH_P_PAE)
-			&& ieee80211_is_data_qos(wh->frame_control)) {
+	if (priv->ap_fw && sta && sta->ht_cap.ht_supported && !eapol_frame &&
+	    ieee80211_is_data_qos(wh->frame_control)) {
 		tid = qos & 0xf;
 		mwl8k_tx_count_packet(sta, tid);
 		spin_lock(&priv->stream_lock);
@@ -2027,7 +2030,7 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw,
 	else
 		tx->peer_id = 0;
 
-	if (priv->ap_fw)
+	if (priv->ap_fw && ieee80211_is_data(wh->frame_control) && !eapol_frame)
 		tx->timestamp = cpu_to_le32(ioread32(priv->regs +
 						MWL8K_HW_TIMER_REGISTER));