From 8ed7a0ae7834cbefb82ed15a92e36983924efa23 Mon Sep 17 00:00:00 2001 From: Szymon Janc Date: Tue, 7 Feb 2012 15:43:01 +0100 Subject: Bluetooth: Fix possible missing I-Frame acknowledgement Make l2cap_ertm_send return number of pending I-Frames transmitted instead of all (pending + retransmitted) I-Frames transmitted. As only pending I-Frames are considered as acknowledgement, this could lead to situation when no ACK was sent in __l2cap_send_ack (if only already transmitted I-Frames were retransmitted). Signed-off-by: Szymon Janc Signed-off-by: Luiz Augusto von Dentz Acked-by: Gustavo F. Padovan Acked-by: Marcel Holtmann Signed-off-by: Johan Hedberg --- net/bluetooth/l2cap_core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'net/bluetooth/l2cap_core.c') diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index f1a6b3cbdba7..9add85271658 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1453,8 +1453,10 @@ static int l2cap_ertm_send(struct l2cap_chan *chan) chan->next_tx_seq = __next_seq(chan, chan->next_tx_seq); - if (bt_cb(skb)->retries == 1) + if (bt_cb(skb)->retries == 1) { chan->unacked_frames++; + nsent++; + } chan->frames_sent++; @@ -1462,8 +1464,6 @@ static int l2cap_ertm_send(struct l2cap_chan *chan) chan->tx_send_head = NULL; else chan->tx_send_head = skb_queue_next(&chan->tx_q, skb); - - nsent++; } return nsent; -- cgit v1.2.3-55-g7522