diff options
| author |   Steven Walter <stevenrwalter@gmail.com> | 2014-11-19 09:41:17 -0500 |
|---|---|---|
| committer |   Johan Hedberg <johan.hedberg@intel.com> | 2014-11-27 12:12:27 +0200 |
| commit | f6af675ef5489c69fc3d4faf8c6f477df3cbf8b9 (patch) | |
| tree | 5a804169b240e94e081c8a4da2b056dc11de8618 /net/bluetooth/l2cap_core.c | |
| parent | Bluetooth: ath3k: Add support of MCI 13d3:3408 bt device (diff) | |
| download | linux-dev-f6af675ef5489c69fc3d4faf8c6f477df3cbf8b9.tar.xz linux-dev-f6af675ef5489c69fc3d4faf8c6f477df3cbf8b9.zip | |
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: Steven Walter <stevenrwalter@gmail.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'net/bluetooth/l2cap_core.c')
| -rw-r--r-- | net/bluetooth/l2cap_core.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 8e1273173020..c2d1489c228c 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -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; |