提交 e2ab4353 编写于 作者: G Gustavo F. Padovan

Bluetooth: Use bit operations on conn_state

Instead of setting bits manually we use set_bit, test_bit, etc.
Also remove L2CAP_ prefix from macros.
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>
上级 c1360a1c
......@@ -325,7 +325,7 @@ struct l2cap_chan {
__u16 mps;
unsigned long conf_state;
__u16 conn_state;
unsigned long conn_state;
__u8 next_tx_seq;
__u8 expected_ack_seq;
......@@ -438,17 +438,19 @@ enum {
#define L2CAP_CONF_MAX_CONF_REQ 2
#define L2CAP_CONF_MAX_CONF_RSP 2
#define L2CAP_CONN_SAR_SDU 0x0001
#define L2CAP_CONN_SREJ_SENT 0x0002
#define L2CAP_CONN_WAIT_F 0x0004
#define L2CAP_CONN_SREJ_ACT 0x0008
#define L2CAP_CONN_SEND_PBIT 0x0010
#define L2CAP_CONN_REMOTE_BUSY 0x0020
#define L2CAP_CONN_LOCAL_BUSY 0x0040
#define L2CAP_CONN_REJ_ACT 0x0080
#define L2CAP_CONN_SEND_FBIT 0x0100
#define L2CAP_CONN_RNR_SENT 0x0200
#define L2CAP_CONN_SAR_RETRY 0x0400
enum {
CONN_SAR_SDU,
CONN_SREJ_SENT,
CONN_WAIT_F,
CONN_SREJ_ACT,
CONN_SEND_PBIT,
CONN_REMOTE_BUSY,
CONN_LOCAL_BUSY,
CONN_REJ_ACT,
CONN_SEND_FBIT,
CONN_RNR_SENT,
CONN_SAR_RETRY,
};
#define __set_chan_timer(c, t) l2cap_set_timer(c, &c->chan_timer, (t))
#define __clear_chan_timer(c) l2cap_clear_timer(c, &c->chan_timer)
......
......@@ -584,15 +584,11 @@ static inline void l2cap_send_sframe(struct l2cap_chan *chan, u16 control)
count = min_t(unsigned int, conn->mtu, hlen);
control |= L2CAP_CTRL_FRAME_TYPE;
if (chan->conn_state & L2CAP_CONN_SEND_FBIT) {
if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state))
control |= L2CAP_CTRL_FINAL;
chan->conn_state &= ~L2CAP_CONN_SEND_FBIT;
}
if (chan->conn_state & L2CAP_CONN_SEND_PBIT) {
if (test_and_clear_bit(CONN_SEND_PBIT, &chan->conn_state))
control |= L2CAP_CTRL_POLL;
chan->conn_state &= ~L2CAP_CONN_SEND_PBIT;
}
skb = bt_skb_alloc(count, GFP_ATOMIC);
if (!skb)
......@@ -620,9 +616,9 @@ static inline void l2cap_send_sframe(struct l2cap_chan *chan, u16 control)
static inline void l2cap_send_rr_or_rnr(struct l2cap_chan *chan, u16 control)
{
if (chan->conn_state & L2CAP_CONN_LOCAL_BUSY) {
if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
control |= L2CAP_SUPER_RCV_NOT_READY;
chan->conn_state |= L2CAP_CONN_RNR_SENT;
set_bit(CONN_RNR_SENT, &chan->conn_state);
} else
control |= L2CAP_SUPER_RCV_READY;
......@@ -1223,7 +1219,7 @@ static void l2cap_retrans_timeout(unsigned long arg)
chan->retry_count = 1;
__set_monitor_timer(chan);
chan->conn_state |= L2CAP_CONN_WAIT_F;
set_bit(CONN_WAIT_F, &chan->conn_state);
l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_POLL);
bh_unlock_sock(sk);
......@@ -1314,10 +1310,8 @@ static void l2cap_retransmit_one_frame(struct l2cap_chan *chan, u8 tx_seq)
control = get_unaligned_le16(tx_skb->data + L2CAP_HDR_SIZE);
control &= L2CAP_CTRL_SAR;
if (chan->conn_state & L2CAP_CONN_SEND_FBIT) {
if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state))
control |= L2CAP_CTRL_FINAL;
chan->conn_state &= ~L2CAP_CONN_SEND_FBIT;
}
control |= (chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT)
| (tx_seq << L2CAP_CTRL_TXSEQ_SHIFT);
......@@ -1356,10 +1350,9 @@ int l2cap_ertm_send(struct l2cap_chan *chan)
control = get_unaligned_le16(tx_skb->data + L2CAP_HDR_SIZE);
control &= L2CAP_CTRL_SAR;
if (chan->conn_state & L2CAP_CONN_SEND_FBIT) {
if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state))
control |= L2CAP_CTRL_FINAL;
chan->conn_state &= ~L2CAP_CONN_SEND_FBIT;
}
control |= (chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT)
| (chan->next_tx_seq << L2CAP_CTRL_TXSEQ_SHIFT);
put_unaligned_le16(control, tx_skb->data + L2CAP_HDR_SIZE);
......@@ -1411,9 +1404,9 @@ static void l2cap_send_ack(struct l2cap_chan *chan)
control |= chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
if (chan->conn_state & L2CAP_CONN_LOCAL_BUSY) {
if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
control |= L2CAP_SUPER_RCV_NOT_READY;
chan->conn_state |= L2CAP_CONN_RNR_SENT;
set_bit(CONN_RNR_SENT, &chan->conn_state);
l2cap_send_sframe(chan, control);
return;
}
......@@ -1680,8 +1673,8 @@ int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len)
break;
}
if ((chan->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
(chan->conn_state & L2CAP_CONN_WAIT_F)) {
if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state) &&
test_bit(CONN_WAIT_F, &chan->conn_state)) {
err = len;
break;
}
......@@ -3071,18 +3064,18 @@ static inline void l2cap_send_i_or_rr_or_rnr(struct l2cap_chan *chan)
control |= chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
if (chan->conn_state & L2CAP_CONN_LOCAL_BUSY) {
if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
control |= L2CAP_SUPER_RCV_NOT_READY;
l2cap_send_sframe(chan, control);
chan->conn_state |= L2CAP_CONN_RNR_SENT;
set_bit(CONN_RNR_SENT, &chan->conn_state);
}
if (chan->conn_state & L2CAP_CONN_REMOTE_BUSY)
if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state))
l2cap_retransmit_frames(chan);
l2cap_ertm_send(chan);
if (!(chan->conn_state & L2CAP_CONN_LOCAL_BUSY) &&
if (!test_bit(CONN_LOCAL_BUSY, &chan->conn_state) &&
chan->frames_sent == 0) {
control |= L2CAP_SUPER_RCV_READY;
l2cap_send_sframe(chan, control);
......@@ -3138,13 +3131,13 @@ static int l2cap_ertm_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *sk
switch (control & L2CAP_CTRL_SAR) {
case L2CAP_SDU_UNSEGMENTED:
if (chan->conn_state & L2CAP_CONN_SAR_SDU)
if (test_bit(CONN_SAR_SDU, &chan->conn_state))
goto drop;
return chan->ops->recv(chan->data, skb);
case L2CAP_SDU_START:
if (chan->conn_state & L2CAP_CONN_SAR_SDU)
if (test_bit(CONN_SAR_SDU, &chan->conn_state))
goto drop;
chan->sdu_len = get_unaligned_le16(skb->data);
......@@ -3163,12 +3156,12 @@ static int l2cap_ertm_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *sk
memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
chan->conn_state |= L2CAP_CONN_SAR_SDU;
set_bit(CONN_SAR_SDU, &chan->conn_state);
chan->partial_sdu_len = skb->len;
break;
case L2CAP_SDU_CONTINUE:
if (!(chan->conn_state & L2CAP_CONN_SAR_SDU))
if (!test_bit(CONN_SAR_SDU, &chan->conn_state))
goto disconnect;
if (!chan->sdu)
......@@ -3183,13 +3176,13 @@ static int l2cap_ertm_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *sk
break;
case L2CAP_SDU_END:
if (!(chan->conn_state & L2CAP_CONN_SAR_SDU))
if (!test_bit(CONN_SAR_SDU, &chan->conn_state))
goto disconnect;
if (!chan->sdu)
goto disconnect;
if (!(chan->conn_state & L2CAP_CONN_SAR_RETRY)) {
if (!test_bit(CONN_SAR_RETRY, &chan->conn_state)) {
chan->partial_sdu_len += skb->len;
if (chan->partial_sdu_len > chan->imtu)
......@@ -3203,19 +3196,19 @@ static int l2cap_ertm_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *sk
_skb = skb_clone(chan->sdu, GFP_ATOMIC);
if (!_skb) {
chan->conn_state |= L2CAP_CONN_SAR_RETRY;
set_bit(CONN_SAR_RETRY, &chan->conn_state);
return -ENOMEM;
}
err = chan->ops->recv(chan->data, _skb);
if (err < 0) {
kfree_skb(_skb);
chan->conn_state |= L2CAP_CONN_SAR_RETRY;
set_bit(CONN_SAR_RETRY, &chan->conn_state);
return err;
}
chan->conn_state &= ~L2CAP_CONN_SAR_RETRY;
chan->conn_state &= ~L2CAP_CONN_SAR_SDU;
clear_bit(CONN_SAR_RETRY, &chan->conn_state);
clear_bit(CONN_SAR_SDU, &chan->conn_state);
kfree_skb(chan->sdu);
break;
......@@ -3251,7 +3244,7 @@ static int l2cap_try_push_rx_skb(struct l2cap_chan *chan)
chan->buffer_seq = (chan->buffer_seq + 1) % 64;
}
if (!(chan->conn_state & L2CAP_CONN_RNR_SENT))
if (!test_bit(CONN_RNR_SENT, &chan->conn_state))
goto done;
control = chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
......@@ -3262,11 +3255,11 @@ static int l2cap_try_push_rx_skb(struct l2cap_chan *chan)
__clear_retrans_timer(chan);
__set_monitor_timer(chan);
chan->conn_state |= L2CAP_CONN_WAIT_F;
set_bit(CONN_WAIT_F, &chan->conn_state);
done:
chan->conn_state &= ~L2CAP_CONN_LOCAL_BUSY;
chan->conn_state &= ~L2CAP_CONN_RNR_SENT;
clear_bit(CONN_LOCAL_BUSY, &chan->conn_state);
clear_bit(CONN_RNR_SENT, &chan->conn_state);
BT_DBG("chan %p, Exit local busy", chan);
......@@ -3324,7 +3317,7 @@ static int l2cap_push_rx_skb(struct l2cap_chan *chan, struct sk_buff *skb, u16 c
{
int sctrl, err;
if (chan->conn_state & L2CAP_CONN_LOCAL_BUSY) {
if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
bt_cb(skb)->sar = control >> L2CAP_CTRL_SAR_SHIFT;
__skb_queue_tail(&chan->busy_q, skb);
return l2cap_try_push_rx_skb(chan);
......@@ -3341,7 +3334,7 @@ static int l2cap_push_rx_skb(struct l2cap_chan *chan, struct sk_buff *skb, u16 c
/* Busy Condition */
BT_DBG("chan %p, Enter local busy", chan);
chan->conn_state |= L2CAP_CONN_LOCAL_BUSY;
set_bit(CONN_LOCAL_BUSY, &chan->conn_state);
bt_cb(skb)->sar = control >> L2CAP_CTRL_SAR_SHIFT;
__skb_queue_tail(&chan->busy_q, skb);
......@@ -3349,7 +3342,7 @@ static int l2cap_push_rx_skb(struct l2cap_chan *chan, struct sk_buff *skb, u16 c
sctrl |= L2CAP_SUPER_RCV_NOT_READY;
l2cap_send_sframe(chan, sctrl);
chan->conn_state |= L2CAP_CONN_RNR_SENT;
set_bit(CONN_RNR_SENT, &chan->conn_state);
__clear_ack_timer(chan);
......@@ -3370,7 +3363,7 @@ static int l2cap_streaming_reassembly_sdu(struct l2cap_chan *chan, struct sk_buf
switch (control & L2CAP_CTRL_SAR) {
case L2CAP_SDU_UNSEGMENTED:
if (chan->conn_state & L2CAP_CONN_SAR_SDU) {
if (test_bit(CONN_SAR_SDU, &chan->conn_state)) {
kfree_skb(chan->sdu);
break;
}
......@@ -3382,7 +3375,7 @@ static int l2cap_streaming_reassembly_sdu(struct l2cap_chan *chan, struct sk_buf
break;
case L2CAP_SDU_START:
if (chan->conn_state & L2CAP_CONN_SAR_SDU) {
if (test_bit(CONN_SAR_SDU, &chan->conn_state)) {
kfree_skb(chan->sdu);
break;
}
......@@ -3403,13 +3396,13 @@ static int l2cap_streaming_reassembly_sdu(struct l2cap_chan *chan, struct sk_buf
memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
chan->conn_state |= L2CAP_CONN_SAR_SDU;
set_bit(CONN_SAR_SDU, &chan->conn_state);
chan->partial_sdu_len = skb->len;
err = 0;
break;
case L2CAP_SDU_CONTINUE:
if (!(chan->conn_state & L2CAP_CONN_SAR_SDU))
if (!test_bit(CONN_SAR_SDU, &chan->conn_state))
break;
memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
......@@ -3423,12 +3416,12 @@ static int l2cap_streaming_reassembly_sdu(struct l2cap_chan *chan, struct sk_buf
break;
case L2CAP_SDU_END:
if (!(chan->conn_state & L2CAP_CONN_SAR_SDU))
if (!test_bit(CONN_SAR_SDU, &chan->conn_state))
break;
memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
chan->conn_state &= ~L2CAP_CONN_SAR_SDU;
clear_bit(CONN_SAR_SDU, &chan->conn_state);
chan->partial_sdu_len += skb->len;
if (chan->partial_sdu_len > chan->imtu)
......@@ -3519,11 +3512,11 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
tx_seq, rx_control);
if (L2CAP_CTRL_FINAL & rx_control &&
chan->conn_state & L2CAP_CONN_WAIT_F) {
test_bit(CONN_WAIT_F, &chan->conn_state)) {
__clear_monitor_timer(chan);
if (chan->unacked_frames > 0)
__set_retrans_timer(chan);
chan->conn_state &= ~L2CAP_CONN_WAIT_F;
clear_bit(CONN_WAIT_F, &chan->conn_state);
}
chan->expected_ack_seq = req_seq;
......@@ -3542,10 +3535,10 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
goto drop;
}
if (chan->conn_state & L2CAP_CONN_LOCAL_BUSY)
if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state))
goto drop;
if (chan->conn_state & L2CAP_CONN_SREJ_SENT) {
if (test_bit(CONN_SREJ_SENT, &chan->conn_state)) {
struct srej_list *first;
first = list_first_entry(&chan->srej_l,
......@@ -3559,7 +3552,7 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
if (list_empty(&chan->srej_l)) {
chan->buffer_seq = chan->buffer_seq_srej;
chan->conn_state &= ~L2CAP_CONN_SREJ_SENT;
clear_bit(CONN_SREJ_SENT, &chan->conn_state);
l2cap_send_ack(chan);
BT_DBG("chan %p, Exit SREJ_SENT", chan);
}
......@@ -3588,7 +3581,7 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
if (tx_seq_offset < expected_tx_seq_offset)
goto drop;
chan->conn_state |= L2CAP_CONN_SREJ_SENT;
set_bit(CONN_SREJ_SENT, &chan->conn_state);
BT_DBG("chan %p, Enter SREJ", chan);
......@@ -3599,7 +3592,7 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
__skb_queue_head_init(&chan->busy_q);
l2cap_add_to_srej_queue(chan, skb, tx_seq, sar);
chan->conn_state |= L2CAP_CONN_SEND_PBIT;
set_bit(CONN_SEND_PBIT, &chan->conn_state);
l2cap_send_srejframe(chan, tx_seq);
......@@ -3610,7 +3603,7 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
expected:
chan->expected_tx_seq = (chan->expected_tx_seq + 1) % 64;
if (chan->conn_state & L2CAP_CONN_SREJ_SENT) {
if (test_bit(CONN_SREJ_SENT, &chan->conn_state)) {
bt_cb(skb)->tx_seq = tx_seq;
bt_cb(skb)->sar = sar;
__skb_queue_tail(&chan->srej_q, skb);
......@@ -3622,9 +3615,7 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
return 0;
if (rx_control & L2CAP_CTRL_FINAL) {
if (chan->conn_state & L2CAP_CONN_REJ_ACT)
chan->conn_state &= ~L2CAP_CONN_REJ_ACT;
else
if (!test_and_clear_bit(CONN_REJ_ACT, &chan->conn_state))
l2cap_retransmit_frames(chan);
}
......@@ -3650,33 +3641,31 @@ static inline void l2cap_data_channel_rrframe(struct l2cap_chan *chan, u16 rx_co
l2cap_drop_acked_frames(chan);
if (rx_control & L2CAP_CTRL_POLL) {
chan->conn_state |= L2CAP_CONN_SEND_FBIT;
if (chan->conn_state & L2CAP_CONN_SREJ_SENT) {
if ((chan->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
set_bit(CONN_SEND_FBIT, &chan->conn_state);
if (test_bit(CONN_SREJ_SENT, &chan->conn_state)) {
if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state) &&
(chan->unacked_frames > 0))
__set_retrans_timer(chan);
chan->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
l2cap_send_srejtail(chan);
} else {
l2cap_send_i_or_rr_or_rnr(chan);
}
} else if (rx_control & L2CAP_CTRL_FINAL) {
chan->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
if (chan->conn_state & L2CAP_CONN_REJ_ACT)
chan->conn_state &= ~L2CAP_CONN_REJ_ACT;
else
if (!test_and_clear_bit(CONN_REJ_ACT, &chan->conn_state))
l2cap_retransmit_frames(chan);
} else {
if ((chan->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state) &&
(chan->unacked_frames > 0))
__set_retrans_timer(chan);
chan->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
if (chan->conn_state & L2CAP_CONN_SREJ_SENT)
clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
if (test_bit(CONN_SREJ_SENT, &chan->conn_state))
l2cap_send_ack(chan);
else
l2cap_ertm_send(chan);
......@@ -3689,21 +3678,19 @@ static inline void l2cap_data_channel_rejframe(struct l2cap_chan *chan, u16 rx_c
BT_DBG("chan %p, req_seq %d ctrl 0x%4.4x", chan, tx_seq, rx_control);
chan->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
chan->expected_ack_seq = tx_seq;
l2cap_drop_acked_frames(chan);
if (rx_control & L2CAP_CTRL_FINAL) {
if (chan->conn_state & L2CAP_CONN_REJ_ACT)
chan->conn_state &= ~L2CAP_CONN_REJ_ACT;
else
if (!test_and_clear_bit(CONN_REJ_ACT, &chan->conn_state))
l2cap_retransmit_frames(chan);
} else {
l2cap_retransmit_frames(chan);
if (chan->conn_state & L2CAP_CONN_WAIT_F)
chan->conn_state |= L2CAP_CONN_REJ_ACT;
if (test_bit(CONN_WAIT_F, &chan->conn_state))
set_bit(CONN_REJ_ACT, &chan->conn_state);
}
}
static inline void l2cap_data_channel_srejframe(struct l2cap_chan *chan, u16 rx_control)
......@@ -3712,32 +3699,32 @@ static inline void l2cap_data_channel_srejframe(struct l2cap_chan *chan, u16 rx_
BT_DBG("chan %p, req_seq %d ctrl 0x%4.4x", chan, tx_seq, rx_control);
chan->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
if (rx_control & L2CAP_CTRL_POLL) {
chan->expected_ack_seq = tx_seq;
l2cap_drop_acked_frames(chan);
chan->conn_state |= L2CAP_CONN_SEND_FBIT;
set_bit(CONN_SEND_FBIT, &chan->conn_state);
l2cap_retransmit_one_frame(chan, tx_seq);
l2cap_ertm_send(chan);
if (chan->conn_state & L2CAP_CONN_WAIT_F) {
if (test_bit(CONN_WAIT_F, &chan->conn_state)) {
chan->srej_save_reqseq = tx_seq;
chan->conn_state |= L2CAP_CONN_SREJ_ACT;
set_bit(CONN_SREJ_ACT, &chan->conn_state);
}
} else if (rx_control & L2CAP_CTRL_FINAL) {
if ((chan->conn_state & L2CAP_CONN_SREJ_ACT) &&
if (test_bit(CONN_SREJ_ACT, &chan->conn_state) &&
chan->srej_save_reqseq == tx_seq)
chan->conn_state &= ~L2CAP_CONN_SREJ_ACT;
clear_bit(CONN_SREJ_ACT, &chan->conn_state);
else
l2cap_retransmit_one_frame(chan, tx_seq);
} else {
l2cap_retransmit_one_frame(chan, tx_seq);
if (chan->conn_state & L2CAP_CONN_WAIT_F) {
if (test_bit(CONN_WAIT_F, &chan->conn_state)) {
chan->srej_save_reqseq = tx_seq;
chan->conn_state |= L2CAP_CONN_SREJ_ACT;
set_bit(CONN_SREJ_ACT, &chan->conn_state);
}
}
}
......@@ -3748,14 +3735,14 @@ static inline void l2cap_data_channel_rnrframe(struct l2cap_chan *chan, u16 rx_c
BT_DBG("chan %p, req_seq %d ctrl 0x%4.4x", chan, tx_seq, rx_control);
chan->conn_state |= L2CAP_CONN_REMOTE_BUSY;
set_bit(CONN_REMOTE_BUSY, &chan->conn_state);
chan->expected_ack_seq = tx_seq;
l2cap_drop_acked_frames(chan);
if (rx_control & L2CAP_CTRL_POLL)
chan->conn_state |= L2CAP_CONN_SEND_FBIT;
set_bit(CONN_SEND_FBIT, &chan->conn_state);
if (!(chan->conn_state & L2CAP_CONN_SREJ_SENT)) {
if (!test_bit(CONN_SREJ_SENT, &chan->conn_state)) {
__clear_retrans_timer(chan);
if (rx_control & L2CAP_CTRL_POLL)
l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_FINAL);
......@@ -3773,11 +3760,11 @@ static inline int l2cap_data_channel_sframe(struct l2cap_chan *chan, u16 rx_cont
BT_DBG("chan %p rx_control 0x%4.4x len %d", chan, rx_control, skb->len);
if (L2CAP_CTRL_FINAL & rx_control &&
chan->conn_state & L2CAP_CONN_WAIT_F) {
test_bit(CONN_WAIT_F, &chan->conn_state)) {
__clear_monitor_timer(chan);
if (chan->unacked_frames > 0)
__set_retrans_timer(chan);
chan->conn_state &= ~L2CAP_CONN_WAIT_F;
clear_bit(CONN_WAIT_F, &chan->conn_state);
}
switch (rx_control & L2CAP_CTRL_SUPERVISE) {
......
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