From 02f1b641060486df8eecd66b060ae6551f398593 Mon Sep 17 00:00:00 2001 From: Mat Martineau Date: Wed, 29 Jun 2011 14:35:19 -0700 Subject: [PATCH] Bluetooth: Check earlier for L2CAP ERTM frames to drop Even when the received tx_seq is expected, the frame still needs to be dropped if the TX window is exceeded or the receiver is in the local busy state. Signed-off-by: Mat Martineau Signed-off-by: Gustavo F. Padovan --- net/bluetooth/l2cap_core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 27b2cd124f00..bd5d9926bf4f 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -3522,9 +3522,6 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont chan->expected_ack_seq = req_seq; l2cap_drop_acked_frames(chan); - if (tx_seq == chan->expected_tx_seq) - goto expected; - tx_seq_offset = (tx_seq - chan->buffer_seq) % 64; if (tx_seq_offset < 0) tx_seq_offset += 64; @@ -3538,6 +3535,9 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) goto drop; + if (tx_seq == chan->expected_tx_seq) + goto expected; + if (test_bit(CONN_SREJ_SENT, &chan->conn_state)) { struct srej_list *first; -- 2.20.1