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Bluetooth: Move SREJ list to struct l2cap_chan 

As part of moving all the Channel related operation to struct l2cap_chan.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Gustavo F. Padovan 2011-04-04 15:40:12 -03:00
parent 2ead70b839
commit 39d5a3ee35
3 changed files with 17 additions and 19 deletions
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13
include/net/bluetooth/l2cap.h
View File

@ -277,6 +277,11 @@ struct l2cap_conn_param_update_rsp {
#define L2CAP_CONN_PARAM_REJECTED 0x0001
/* ----- L2CAP channels and connections ----- */
struct srej_list {
__u8 tx_seq;
struct list_head list;
};
struct l2cap_chan {
struct sock *sk;
__u8 ident;
@ -312,6 +317,7 @@ struct l2cap_chan {
struct sk_buff_head srej_q;
struct sk_buff_head busy_q;
struct work_struct busy_work;
struct list_head srej_l;
struct list_head list;
};
@ -350,12 +356,6 @@ struct l2cap_conn {
/* ----- L2CAP socket info ----- */
#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
#define TX_QUEUE(sk) (&l2cap_pi(sk)->tx_queue)
#define SREJ_LIST(sk) (&l2cap_pi(sk)->srej_l.list)
struct srej_list {
__u8 tx_seq;
struct list_head list;
};
struct l2cap_pinfo {
struct bt_sock bt;
@ -385,7 +385,6 @@ struct l2cap_pinfo {
__le16 sport;
struct sk_buff_head tx_queue;
struct srej_list srej_l;
struct l2cap_conn *conn;
struct l2cap_chan *chan;
};

22
net/bluetooth/l2cap_core.c
View File

@ -252,7 +252,7 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err)
skb_queue_purge(&chan->srej_q);
skb_queue_purge(&chan->busy_q);
list_for_each_entry_safe(l, tmp, SREJ_LIST(sk), list) {
list_for_each_entry_safe(l, tmp, &chan->srej_l, list) {
list_del(&l->list);
kfree(l);
}
@ -1205,7 +1205,7 @@ static void l2cap_send_srejtail(struct l2cap_chan *chan)
control = L2CAP_SUPER_SELECT_REJECT;
control |= L2CAP_CTRL_FINAL;
tail = list_entry(SREJ_LIST(chan->sk)->prev, struct srej_list, list);
tail = list_entry((&chan->srej_l)->prev, struct srej_list, list);
control |= tail->tx_seq << L2CAP_CTRL_REQSEQ_SHIFT;
l2cap_send_sframe(chan, control);
@ -1596,6 +1596,8 @@ static inline void l2cap_ertm_init(struct l2cap_chan *chan)
skb_queue_head_init(&chan->srej_q);
skb_queue_head_init(&chan->busy_q);
INIT_LIST_HEAD(&chan->srej_l);
INIT_WORK(&chan->busy_work, l2cap_busy_work);
sk->sk_backlog_rcv = l2cap_ertm_data_rcv;
@ -3207,11 +3209,10 @@ static void l2cap_check_srej_gap(struct l2cap_chan *chan, u8 tx_seq)
static void l2cap_resend_srejframe(struct l2cap_chan *chan, u8 tx_seq)
{
struct sock *sk = chan->sk;
struct srej_list *l, *tmp;
u16 control;
list_for_each_entry_safe(l, tmp, SREJ_LIST(sk), list) {
list_for_each_entry_safe(l, tmp, &chan->srej_l, list) {
if (l->tx_seq == tx_seq) {
list_del(&l->list);
kfree(l);
@ -3221,13 +3222,12 @@ static void l2cap_resend_srejframe(struct l2cap_chan *chan, u8 tx_seq)
control |= l->tx_seq << L2CAP_CTRL_REQSEQ_SHIFT;
l2cap_send_sframe(chan, control);
list_del(&l->list);
list_add_tail(&l->list, SREJ_LIST(sk));
list_add_tail(&l->list, &chan->srej_l);
}
}
static void l2cap_send_srejframe(struct l2cap_chan *chan, u8 tx_seq)
{
struct sock *sk = chan->sk;
struct srej_list *new;
u16 control;
@ -3239,7 +3239,7 @@ static void l2cap_send_srejframe(struct l2cap_chan *chan, u8 tx_seq)
new = kzalloc(sizeof(struct srej_list), GFP_ATOMIC);
new->tx_seq = chan->expected_tx_seq;
chan->expected_tx_seq = (chan->expected_tx_seq + 1) % 64;
list_add_tail(&new->list, SREJ_LIST(sk));
list_add_tail(&new->list, &chan->srej_l);
}
chan->expected_tx_seq = (chan->expected_tx_seq + 1) % 64;
}
@ -3288,7 +3288,7 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
if (chan->conn_state & L2CAP_CONN_SREJ_SENT) {
struct srej_list *first;
first = list_first_entry(SREJ_LIST(sk),
first = list_first_entry(&chan->srej_l,
struct srej_list, list);
if (tx_seq == first->tx_seq) {
l2cap_add_to_srej_queue(chan, skb, tx_seq, sar);
@ -3297,7 +3297,7 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
list_del(&first->list);
kfree(first);
if (list_empty(SREJ_LIST(sk))) {
if (list_empty(&chan->srej_l)) {
chan->buffer_seq = chan->buffer_seq_srej;
chan->conn_state &= ~L2CAP_CONN_SREJ_SENT;
l2cap_send_ack(chan);
@ -3310,7 +3310,7 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
if (l2cap_add_to_srej_queue(chan, skb, tx_seq, sar) < 0)
goto drop;
list_for_each_entry(l, SREJ_LIST(sk), list) {
list_for_each_entry(l, &chan->srej_l, list) {
if (l->tx_seq == tx_seq) {
l2cap_resend_srejframe(chan, tx_seq);
return 0;
@ -3332,7 +3332,7 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
BT_DBG("sk %p, Enter SREJ", sk);
INIT_LIST_HEAD(SREJ_LIST(sk));
INIT_LIST_HEAD(&chan->srej_l);
chan->buffer_seq_srej = chan->buffer_seq;
__skb_queue_head_init(&chan->srej_q);

1
net/bluetooth/l2cap_sock.c
View File

@ -1018,7 +1018,6 @@ void l2cap_sock_init(struct sock *sk, struct sock *parent)
/* Default config options */
pi->flush_to = L2CAP_DEFAULT_FLUSH_TO;
skb_queue_head_init(TX_QUEUE(sk));
INIT_LIST_HEAD(SREJ_LIST(sk));
}
static struct proto l2cap_proto = {