Bluetooth: hci_core: Print number of packets in conn->data_q

This attempts to print the number of packets pending to be transmitted
in the conn->data_q.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

Author: Vudentz

net/bluetooth/hci_core.c

@@ -3267,6 +3267,8 @@ static void hci_queue_acl(struct hci_chan *chan, struct sk_buff_head *queue,
 
 		spin_unlock_bh(&queue->lock);
 	}
+
+	bt_dev_dbg(hdev, "chan %p queued %d", chan, skb_queue_len(queue));
 }
 
 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags)
@@ -3298,6 +3300,10 @@ void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb)
 	hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
 
 	skb_queue_tail(&conn->data_q, skb);
+
+	bt_dev_dbg(hdev, "hcon %p queued %d", conn,
+		   skb_queue_len(&conn->data_q));
+
 	queue_work(hdev->workqueue, &hdev->tx_work);
 }
 
@@ -3357,6 +3363,8 @@ static void hci_queue_iso(struct hci_conn *conn, struct sk_buff_head *queue,
 			__skb_queue_tail(queue, skb);
 		} while (list);
 	}
+
+	bt_dev_dbg(hdev, "hcon %p queued %d", conn, skb_queue_len(queue));
 }
 
 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb)