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Bluetooth: Refactor l2cap_send_disconn_req
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l2cap_send_disconn_req takes 3 parameters of which conn might be
derived from chan. Make this conversion inside l2cap_send_disconn_req.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
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Andrei Emeltchenko authored and Gustavo Padovan committed Dec 3, 2012
1 parent ffa88e0 commit 5e4e397
Showing 1 changed file with 26 additions and 30 deletions.
56 changes: 26 additions & 30 deletions net/bluetooth/l2cap_core.c
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Original file line number Diff line number Diff line change
Expand Up @@ -53,8 +53,7 @@ static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
static void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len,
void *data);
static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data);
static void l2cap_send_disconn_req(struct l2cap_conn *conn,
struct l2cap_chan *chan, int err);
static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err);

static void l2cap_tx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
struct sk_buff_head *skbs, u8 event);
Expand Down Expand Up @@ -632,7 +631,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED &&
conn->hcon->type == ACL_LINK) {
__set_chan_timer(chan, sk->sk_sndtimeo);
l2cap_send_disconn_req(conn, chan, reason);
l2cap_send_disconn_req(chan, reason);
} else
l2cap_chan_del(chan, reason);
break;
Expand Down Expand Up @@ -1180,10 +1179,10 @@ static inline int l2cap_mode_supported(__u8 mode, __u32 feat_mask)
}
}

static void l2cap_send_disconn_req(struct l2cap_conn *conn,
struct l2cap_chan *chan, int err)
static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err)
{
struct sock *sk = chan->sk;
struct l2cap_conn *conn = chan->conn;
struct l2cap_disconn_req req;

if (!conn)
Expand Down Expand Up @@ -1960,7 +1959,7 @@ static void l2cap_ertm_resend(struct l2cap_chan *chan)
if (chan->max_tx != 0 &&
bt_cb(skb)->control.retries > chan->max_tx) {
BT_DBG("Retry limit exceeded (%d)", chan->max_tx);
l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
l2cap_seq_list_clear(&chan->retrans_list);
break;
}
Expand Down Expand Up @@ -2666,7 +2665,7 @@ static void l2cap_tx_state_wait_f(struct l2cap_chan *chan,
__set_monitor_timer(chan);
chan->retry_count++;
} else {
l2cap_send_disconn_req(chan->conn, chan, ECONNABORTED);
l2cap_send_disconn_req(chan, ECONNABORTED);
}
break;
default:
Expand Down Expand Up @@ -3877,7 +3876,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn,
/* Complete config. */
len = l2cap_parse_conf_req(chan, rsp);
if (len < 0) {
l2cap_send_disconn_req(conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
goto unlock;
}

Expand All @@ -3899,7 +3898,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn,
err = l2cap_ertm_init(chan);

if (err < 0)
l2cap_send_disconn_req(chan->conn, chan, -err);
l2cap_send_disconn_req(chan, -err);
else
l2cap_chan_ready(chan);

Expand Down Expand Up @@ -3967,7 +3966,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn,
len = l2cap_parse_conf_rsp(chan, rsp->data, len,
buf, &result);
if (len < 0) {
l2cap_send_disconn_req(conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
goto done;
}

Expand All @@ -3988,7 +3987,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn,
char req[64];

if (len > sizeof(req) - sizeof(struct l2cap_conf_req)) {
l2cap_send_disconn_req(conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
goto done;
}

Expand All @@ -3997,7 +3996,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn,
len = l2cap_parse_conf_rsp(chan, rsp->data, len,
req, &result);
if (len < 0) {
l2cap_send_disconn_req(conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
goto done;
}

Expand All @@ -4013,7 +4012,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn,
l2cap_chan_set_err(chan, ECONNRESET);

__set_chan_timer(chan, L2CAP_DISC_REJ_TIMEOUT);
l2cap_send_disconn_req(conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
goto done;
}

Expand All @@ -4030,7 +4029,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn,
err = l2cap_ertm_init(chan);

if (err < 0)
l2cap_send_disconn_req(chan->conn, chan, -err);
l2cap_send_disconn_req(chan, -err);
else
l2cap_chan_ready(chan);
}
Expand Down Expand Up @@ -4392,7 +4391,7 @@ static void l2cap_logical_fail(struct l2cap_chan *chan)
/* Logical link setup failed */
if (chan->state != BT_CONNECTED) {
/* Create channel failure, disconnect */
l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
return;
}

Expand Down Expand Up @@ -4435,7 +4434,7 @@ static void l2cap_logical_finish_create(struct l2cap_chan *chan,

err = l2cap_ertm_init(chan);
if (err < 0)
l2cap_send_disconn_req(chan->conn, chan, -err);
l2cap_send_disconn_req(chan, -err);
else
l2cap_chan_ready(chan);
}
Expand Down Expand Up @@ -5400,7 +5399,7 @@ static void l2cap_handle_srej(struct l2cap_chan *chan,

if (control->reqseq == chan->next_tx_seq) {
BT_DBG("Invalid reqseq %d, disconnecting", control->reqseq);
l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
return;
}

Expand All @@ -5414,7 +5413,7 @@ static void l2cap_handle_srej(struct l2cap_chan *chan,

if (chan->max_tx != 0 && bt_cb(skb)->control.retries >= chan->max_tx) {
BT_DBG("Retry limit exceeded (%d)", chan->max_tx);
l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
return;
}

Expand Down Expand Up @@ -5458,7 +5457,7 @@ static void l2cap_handle_rej(struct l2cap_chan *chan,

if (control->reqseq == chan->next_tx_seq) {
BT_DBG("Invalid reqseq %d, disconnecting", control->reqseq);
l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
return;
}

Expand All @@ -5467,7 +5466,7 @@ static void l2cap_handle_rej(struct l2cap_chan *chan,
if (chan->max_tx && skb &&
bt_cb(skb)->control.retries >= chan->max_tx) {
BT_DBG("Retry limit exceeded (%d)", chan->max_tx);
l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
return;
}

Expand Down Expand Up @@ -5651,8 +5650,7 @@ static int l2cap_rx_state_recv(struct l2cap_chan *chan,
break;
case L2CAP_TXSEQ_INVALID:
default:
l2cap_send_disconn_req(chan->conn, chan,
ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
break;
}
break;
Expand Down Expand Up @@ -5785,8 +5783,7 @@ static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan,
break;
case L2CAP_TXSEQ_INVALID:
default:
l2cap_send_disconn_req(chan->conn, chan,
ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
break;
}
break;
Expand Down Expand Up @@ -5981,7 +5978,7 @@ static int l2cap_rx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
BT_DBG("Invalid reqseq %d (next_tx_seq %d, expected_ack_seq %d",
control->reqseq, chan->next_tx_seq,
chan->expected_ack_seq);
l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
}

return err;
Expand Down Expand Up @@ -6050,7 +6047,7 @@ static int l2cap_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
len -= L2CAP_FCS_SIZE;

if (len > chan->mps) {
l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
goto drop;
}

Expand All @@ -6075,8 +6072,7 @@ static int l2cap_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
}

if (err)
l2cap_send_disconn_req(chan->conn, chan,
ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
} else {
const u8 rx_func_to_event[4] = {
L2CAP_EV_RECV_RR, L2CAP_EV_RECV_REJ,
Expand All @@ -6093,7 +6089,7 @@ static int l2cap_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)

if (len != 0) {
BT_ERR("Trailing bytes: %d in sframe", len);
l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
goto drop;
}

Expand All @@ -6104,7 +6100,7 @@ static int l2cap_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)

event = rx_func_to_event[control->super];
if (l2cap_rx(chan, control, skb, event))
l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
l2cap_send_disconn_req(chan, ECONNRESET);
}

return 0;
Expand Down

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