Commit f6af675e authored by Steven Walter's avatar Steven Walter Committed by Johan Hedberg
Browse files

Bluetooth: Automatically flushable packets aren't allowed on LE links 



The Bluetooth spec states that automatically flushable packets may not
be sent over a LE-U link.

Signed-off-by: default avatarSteven Walter <stevenrwalter@gmail.com>
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
parent 3bb30a7c

net/bluetooth/l2cap_core.c

+11 −3
Original line number Diff line number Diff line
@@ -840,7 +840,10 @@ static void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len, 
	if (!skb)

		return;



	if (lmp_no_flush_capable(conn->hcon->hdev))

	/* Use NO_FLUSH if supported or we have an LE link (which does

	 * not support auto-flushing packets) */

	if (lmp_no_flush_capable(conn->hcon->hdev) ||

	    conn->hcon->type == LE_LINK)

		flags = ACL_START_NO_FLUSH;

	else

		flags = ACL_START;
@@ -874,8 +877,13 @@ static void l2cap_do_send(struct l2cap_chan *chan, struct sk_buff *skb) 
		return;

	}



	if (!test_bit(FLAG_FLUSHABLE, &chan->flags) &&

	    lmp_no_flush_capable(hcon->hdev))

	/* Use NO_FLUSH for LE links (where this is the only option) or

	 * if the BR/EDR link supports it and flushing has not been

	 * explicitly requested (through FLAG_FLUSHABLE).

	 */

	if (hcon->type == LE_LINK ||

	    (!test_bit(FLAG_FLUSHABLE, &chan->flags) &&

	     lmp_no_flush_capable(hcon->hdev)))

		flags = ACL_START_NO_FLUSH;

	else

		flags = ACL_START;