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Bluetooth: Access sk_sndtimeo indirectly in l2cap_core.c 

As part of the work to remove struct sock from l2cap_core.c and make it
more generic we remove in this commit the direct access to sk->sk_sndtimeo
member. This objective of this change is purely remove sk usage from
l2cap_core.c

Now we have a new l2cap ops to get the current value of sk->sndtimeo. A
l2cap_chan_no_get_sndtimeo was added for users of L2CAP that doesn't need
to set a timeout.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Gustavo Padovan 2013-10-15 19:24:47 -03:00 committed by Marcel Holtmann
parent f8e73017c1
commit 8d836d71e2
4 changed files with 18 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/net/bluetooth/l2cap.h
View File

@ -555,6 +555,7 @@ struct l2cap_ops {
void (*ready) (struct l2cap_chan *chan);
void (*defer) (struct l2cap_chan *chan);
void (*resume) (struct l2cap_chan *chan);
long (*get_sndtimeo) (struct l2cap_chan *chan);
struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan,
unsigned long len, int nb);
};
@ -795,6 +796,11 @@ static inline void l2cap_chan_no_defer(struct l2cap_chan *chan)
{
}
static inline long l2cap_chan_no_get_sndtimeo(struct l2cap_chan *chan)
{
return 0;
}
extern bool disable_ertm;
int l2cap_init_sockets(void);

1
net/bluetooth/a2mp.c
View File

@ -710,6 +710,7 @@ static struct l2cap_ops a2mp_chan_ops = {
.teardown = l2cap_chan_no_teardown,
.ready = l2cap_chan_no_ready,
.defer = l2cap_chan_no_defer,
.get_sndtimeo = l2cap_chan_no_get_sndtimeo,
};
static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn, bool locked)

8
net/bluetooth/l2cap_core.c
View File

@ -649,8 +649,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
case BT_CONFIG:
if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED &&
conn->hcon->type == ACL_LINK) {
struct sock *sk = chan->sk;
__set_chan_timer(chan, sk->sk_sndtimeo);
__set_chan_timer(chan, chan->ops->get_sndtimeo(chan));
l2cap_send_disconn_req(chan, reason);
} else
l2cap_chan_del(chan, reason);
@ -1764,7 +1763,6 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm,
int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
bdaddr_t *dst, u8 dst_type)
{
struct sock *sk = chan->sk;
struct l2cap_conn *conn;
struct hci_conn *hcon;
struct hci_dev *hdev;
@ -1876,7 +1874,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
hci_conn_drop(hcon);
l2cap_state_change(chan, BT_CONNECT);
__set_chan_timer(chan, sk->sk_sndtimeo);
__set_chan_timer(chan, chan->ops->get_sndtimeo(chan));
if (hcon->state == BT_CONNECTED) {
if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {
@ -3817,7 +3815,7 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
dcid = chan->scid;
__set_chan_timer(chan, sk->sk_sndtimeo);
__set_chan_timer(chan, chan->ops->get_sndtimeo(chan));
chan->ident = cmd->ident;

8
net/bluetooth/l2cap_sock.c
View File

@ -1136,6 +1136,13 @@ static void l2cap_sock_resume_cb(struct l2cap_chan *chan)
sk->sk_state_change(sk);
}
static long l2cap_sock_get_sndtimeo_cb(struct l2cap_chan *chan)
{
struct sock *sk = chan->data;
return sk->sk_sndtimeo;
}
static struct l2cap_ops l2cap_chan_ops = {
.name = "L2CAP Socket Interface",
.new_connection = l2cap_sock_new_connection_cb,
@ -1146,6 +1153,7 @@ static struct l2cap_ops l2cap_chan_ops = {
.ready = l2cap_sock_ready_cb,
.defer = l2cap_sock_defer_cb,
.resume = l2cap_sock_resume_cb,
.get_sndtimeo = l2cap_sock_get_sndtimeo_cb,
.alloc_skb = l2cap_sock_alloc_skb_cb,
};