ath6kl: add pointer to the skb in htc_packet

Needed by the USB code.

Signed-off-by: Kalle Valo <[e-mail]>

drivers/net/wireless/ath/ath6kl/htc.h

···
 
 	void (*completion) (struct htc_target *, struct htc_packet *);
 	struct htc_target *context;
+
+	/*
+	 * optimization for network-oriented data, the HTC packet
+	 * can pass the network buffer corresponding to the HTC packet
+	 * lower layers may optimized the transfer knowing this is
+	 * a network buffer
+	 */
+	struct sk_buff *skb;
 };
 
 enum htc_send_full_action {

drivers/net/wireless/ath/ath6kl/txrx.c

···
 	cookie->map_no = 0;
 	set_htc_pkt_info(&cookie->htc_pkt, cookie, skb->data, skb->len,
 			 eid, ATH6KL_CONTROL_PKT_TAG);
+	cookie->htc_pkt.skb = skb;
 
 	/*
 	 * This interface is asynchronous, if there is an error, cleanup
···
 	cookie->map_no = map_no;
 	set_htc_pkt_info(&cookie->htc_pkt, cookie, skb->data, skb->len,
 			 eid, htc_tag);
+	cookie->htc_pkt.skb = skb;
 
 	ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, __func__, "tx ",
 			skb->data, skb->len);
···
 			skb->data = PTR_ALIGN(skb->data - 4, 4);
 		set_htc_rxpkt_info(packet, skb, skb->data,
 				   ATH6KL_BUFFER_SIZE, endpoint);
+		packet->skb = skb;
 		list_add_tail(&packet->list, &queue);
 	}
 
···
 			skb->data = PTR_ALIGN(skb->data - 4, 4);
 		set_htc_rxpkt_info(packet, skb, skb->data,
 				   ATH6KL_AMSDU_BUFFER_SIZE, 0);
+		packet->skb = skb;
+
 		spin_lock_bh(&ar->lock);
 		list_add_tail(&packet->list, &ar->amsdu_rx_buffer_queue);
 		spin_unlock_bh(&ar->lock);