mwifiex: pass priv pointer instead of adapter

Pass mwifiex_private pointer directly to wmm_add_buf_txqueue()
instead of passing adapter and then deriving priv again in
mwifiex_get_priv_by_id(). This reduces a 'for' loop in TX path.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwifiex/main.c

@@ -462,7 +462,7 @@ mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	tx_info->bss_type = priv->bss_type;
 	mwifiex_fill_buffer(skb);
 
-	mwifiex_wmm_add_buf_txqueue(priv->adapter, skb);
+	mwifiex_wmm_add_buf_txqueue(priv, skb);
 	atomic_inc(&priv->adapter->tx_pending);
 
 	if (atomic_read(&priv->adapter->tx_pending) >= MAX_TX_PENDING) {

drivers/net/wireless/mwifiex/wmm.c

@@ -599,12 +599,10 @@ mwifiex_is_ralist_valid(struct mwifiex_private *priv,
  * is queued at the list tail.
  */
 void
-mwifiex_wmm_add_buf_txqueue(struct mwifiex_adapter *adapter,
+mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv,
 			    struct sk_buff *skb)
 {
-	struct mwifiex_txinfo *tx_info = MWIFIEX_SKB_TXCB(skb);
-	struct mwifiex_private *priv = mwifiex_get_priv_by_id(adapter,
-			tx_info->bss_num, tx_info->bss_type);
+	struct mwifiex_adapter *adapter = priv->adapter;
 	u32 tid;
 	struct mwifiex_ra_list_tbl *ra_list;
 	u8 ra[ETH_ALEN], tid_down;

drivers/net/wireless/mwifiex/wmm.h

@@ -80,8 +80,8 @@ mwifiex_wmm_is_ra_list_empty(struct list_head *ra_list_hhead)
 	return true;
 }
 
-void mwifiex_wmm_add_buf_txqueue(struct mwifiex_adapter *adapter,
-				 struct sk_buff *skb);
+void mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv,
+					struct sk_buff *skb);
 void mwifiex_ralist_add(struct mwifiex_private *priv, u8 *ra);
 
 int mwifiex_wmm_lists_empty(struct mwifiex_adapter *adapter);