Since l2cap_send_ack can trigger extra actions like sending iframes,
don't call it. Just send an RR or RNR frame if an ack needs sending.
Signed-off-by: Mat Martineau <mathewm@xxxxxxxxxxxxxx>
---
net/bluetooth/l2cap_core.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 7f3d7cb..afb7afc 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -2758,16 +2758,20 @@ static void l2cap_add_opt_efs(void **ptr, struct l2cap_chan *chan)
static void l2cap_ack_timeout(struct work_struct *work)
{
struct l2cap_chan *chan = container_of(work, struct l2cap_chan,
- ack_timer.work);
+ ack_timer.work);
+ u16 frames_to_ack;
BT_DBG("chan %p", chan);
l2cap_chan_lock(chan);
- l2cap_send_ack(chan);
+ frames_to_ack = __seq_offset(chan, chan->buffer_seq,
+ chan->last_acked_seq);
+
+ if (frames_to_ack)
+ l2cap_send_rr_or_rnr(chan, 0);
l2cap_chan_unlock(chan);
-
l2cap_chan_put(chan);
}
--
1.7.10
--
Mat Martineau
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum
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