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

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

Signed-off-by: Steven Walter <stevenrwalter@gmail.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Steven Walter 2014-11-19 09:41:17 -05:00 committed by Johan Hedberg
parent 3bb30a7cdf
commit f6af675ef5
1 changed files with 11 additions and 3 deletions
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14
net/bluetooth/l2cap_core.c
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@ -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;