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Bluetooth: Add locked and unlocked state_change

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Split to locked and unlocked versions of l2cap_state_change helping
to remove socket locks from l2cap code.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Ulisses Furquim <ulisses@profusion.mobi>
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Andrei Emeltchenko 2012-02-21 12:54:57 +02:00 committed by Johan Hedberg
parent c03b355ea2
commit 0e587be728
1 changed files with 25 additions and 16 deletions
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41
net/bluetooth/l2cap_core.c
View file

@ -199,7 +199,7 @@ static u16 l2cap_alloc_cid(struct l2cap_conn *conn)
return 0;
}
static void l2cap_state_change(struct l2cap_chan *chan, int state)
static void __l2cap_state_change(struct l2cap_chan *chan, int state)
{
BT_DBG("chan %p %s -> %s", chan, state_to_string(chan->state),
state_to_string(state));
@ -208,6 +208,15 @@ static void l2cap_state_change(struct l2cap_chan *chan, int state)
chan->ops->state_change(chan->data, state);
}
static void l2cap_state_change(struct l2cap_chan *chan, int state)
{
struct sock *sk = chan->sk;
lock_sock(sk);
__l2cap_state_change(chan, state);
release_sock(sk);
}
static void l2cap_chan_timeout(struct work_struct *work)
{
struct l2cap_chan *chan = container_of(work, struct l2cap_chan,
@ -348,7 +357,7 @@ static void l2cap_chan_del(struct l2cap_chan *chan, int err)
hci_conn_put(conn->hcon);
}
l2cap_state_change(chan, BT_CLOSED);
__l2cap_state_change(chan, BT_CLOSED);
sock_set_flag(sk, SOCK_ZAPPED);
if (err)
@ -413,7 +422,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
case BT_LISTEN:
l2cap_chan_cleanup_listen(sk);
l2cap_state_change(chan, BT_CLOSED);
__l2cap_state_change(chan, BT_CLOSED);
sock_set_flag(sk, SOCK_ZAPPED);
break;
@ -704,7 +713,7 @@ static void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *c
l2cap_send_cmd(conn, l2cap_get_ident(conn),
L2CAP_DISCONN_REQ, sizeof(req), &req);
l2cap_state_change(chan, BT_DISCONN);
__l2cap_state_change(chan, BT_DISCONN);
sk->sk_err = err;
}
@ -770,7 +779,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
parent->sk_data_ready(parent, 0);
} else {
l2cap_state_change(chan, BT_CONFIG);
__l2cap_state_change(chan, BT_CONFIG);
rsp.result = cpu_to_le16(L2CAP_CR_SUCCESS);
rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
}
@ -873,7 +882,7 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
__set_chan_timer(chan, sk->sk_sndtimeo);
l2cap_state_change(chan, BT_CONNECTED);
__l2cap_state_change(chan, BT_CONNECTED);
parent->sk_data_ready(parent, 0);
clean:
@ -890,7 +899,7 @@ static void l2cap_chan_ready(struct l2cap_chan *chan)
chan->conf_state = 0;
__clear_chan_timer(chan);
l2cap_state_change(chan, BT_CONNECTED);
__l2cap_state_change(chan, BT_CONNECTED);
sk->sk_state_change(sk);
if (parent)
@ -922,7 +931,7 @@ static void l2cap_conn_ready(struct l2cap_conn *conn)
} else if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {
__clear_chan_timer(chan);
l2cap_state_change(chan, BT_CONNECTED);
__l2cap_state_change(chan, BT_CONNECTED);
sk->sk_state_change(sk);
} else if (chan->state == BT_CONNECT)
@ -1196,14 +1205,14 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, bdaddr_t *d
l2cap_chan_add(conn, chan);
l2cap_state_change(chan, BT_CONNECT);
__l2cap_state_change(chan, BT_CONNECT);
__set_chan_timer(chan, sk->sk_sndtimeo);
if (hcon->state == BT_CONNECTED) {
if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {
__clear_chan_timer(chan);
if (l2cap_chan_check_security(chan))
l2cap_state_change(chan, BT_CONNECTED);
__l2cap_state_change(chan, BT_CONNECTED);
} else
l2cap_do_start(chan);
}
@ -2650,22 +2659,22 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE) {
if (l2cap_chan_check_security(chan)) {
if (bt_sk(sk)->defer_setup) {
l2cap_state_change(chan, BT_CONNECT2);
__l2cap_state_change(chan, BT_CONNECT2);
result = L2CAP_CR_PEND;
status = L2CAP_CS_AUTHOR_PEND;
parent->sk_data_ready(parent, 0);
} else {
l2cap_state_change(chan, BT_CONFIG);
__l2cap_state_change(chan, BT_CONFIG);
result = L2CAP_CR_SUCCESS;
status = L2CAP_CS_NO_INFO;
}
} else {
l2cap_state_change(chan, BT_CONNECT2);
__l2cap_state_change(chan, BT_CONNECT2);
result = L2CAP_CR_PEND;
status = L2CAP_CS_AUTHEN_PEND;
}
} else {
l2cap_state_change(chan, BT_CONNECT2);
__l2cap_state_change(chan, BT_CONNECT2);
result = L2CAP_CR_PEND;
status = L2CAP_CS_NO_INFO;
}
@ -4584,12 +4593,12 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
if (parent)
parent->sk_data_ready(parent, 0);
} else {
l2cap_state_change(chan, BT_CONFIG);
__l2cap_state_change(chan, BT_CONFIG);
res = L2CAP_CR_SUCCESS;
stat = L2CAP_CS_NO_INFO;
}
} else {
l2cap_state_change(chan, BT_DISCONN);
__l2cap_state_change(chan, BT_DISCONN);
__set_chan_timer(chan,
msecs_to_jiffies(L2CAP_DISC_TIMEOUT));
res = L2CAP_CR_SEC_BLOCK;