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Diffstat (limited to 'net/bluetooth/l2cap_core.c')
-rw-r--r--net/bluetooth/l2cap_core.c62
1 files changed, 38 insertions, 24 deletions
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 1160c5c9b6f..b0480256944 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -3228,22 +3228,26 @@ disconnect:
return 0;
}
-static int l2cap_try_push_rx_skb(struct l2cap_chan *chan)
+static void l2cap_ertm_enter_local_busy(struct l2cap_chan *chan)
{
- struct sk_buff *skb;
u16 control;
- int err;
- while ((skb = skb_dequeue(&chan->busy_q))) {
- control = bt_cb(skb)->sar << L2CAP_CTRL_SAR_SHIFT;
- err = l2cap_ertm_reassembly_sdu(chan, skb, control);
- if (err < 0) {
- skb_queue_head(&chan->busy_q, skb);
- return -EBUSY;
- }
+ BT_DBG("chan %p, Enter local busy", chan);
- chan->buffer_seq = (chan->buffer_seq + 1) % 64;
- }
+ set_bit(CONN_LOCAL_BUSY, &chan->conn_state);
+
+ control = chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
+ control |= L2CAP_SUPER_RCV_NOT_READY;
+ l2cap_send_sframe(chan, control);
+
+ set_bit(CONN_RNR_SENT, &chan->conn_state);
+
+ __clear_ack_timer(chan);
+}
+
+static void l2cap_ertm_exit_local_busy(struct l2cap_chan *chan)
+{
+ u16 control;
if (!test_bit(CONN_RNR_SENT, &chan->conn_state))
goto done;
@@ -3263,6 +3267,26 @@ done:
clear_bit(CONN_RNR_SENT, &chan->conn_state);
BT_DBG("chan %p, Exit local busy", chan);
+}
+
+static int l2cap_try_push_rx_skb(struct l2cap_chan *chan)
+{
+ struct sk_buff *skb;
+ u16 control;
+ int err;
+
+ while ((skb = skb_dequeue(&chan->busy_q))) {
+ control = bt_cb(skb)->sar << L2CAP_CTRL_SAR_SHIFT;
+ err = l2cap_ertm_reassembly_sdu(chan, skb, control);
+ if (err < 0) {
+ skb_queue_head(&chan->busy_q, skb);
+ return -EBUSY;
+ }
+
+ chan->buffer_seq = (chan->buffer_seq + 1) % 64;
+ }
+
+ l2cap_ertm_exit_local_busy(chan);
return 0;
}
@@ -3316,7 +3340,7 @@ static void l2cap_busy_work(struct work_struct *work)
static int l2cap_push_rx_skb(struct l2cap_chan *chan, struct sk_buff *skb, u16 control)
{
- int sctrl, err;
+ int err;
if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
bt_cb(skb)->sar = control >> L2CAP_CTRL_SAR_SHIFT;
@@ -3332,21 +3356,11 @@ static int l2cap_push_rx_skb(struct l2cap_chan *chan, struct sk_buff *skb, u16 c
return err;
}
- /* Busy Condition */
- BT_DBG("chan %p, Enter local busy", chan);
+ l2cap_ertm_enter_local_busy(chan);
- set_bit(CONN_LOCAL_BUSY, &chan->conn_state);
bt_cb(skb)->sar = control >> L2CAP_CTRL_SAR_SHIFT;
__skb_queue_tail(&chan->busy_q, skb);
- sctrl = chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
- sctrl |= L2CAP_SUPER_RCV_NOT_READY;
- l2cap_send_sframe(chan, sctrl);
-
- set_bit(CONN_RNR_SENT, &chan->conn_state);
-
- __clear_ack_timer(chan);
-
queue_work(_busy_wq, &chan->busy_work);
return err;