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>
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 4ec86ce..9c6be72 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -555,6 +555,7 @@
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 long l2cap_chan_no_get_sndtimeo(struct l2cap_chan *chan)
+{
+ return 0;
+}
+
extern bool disable_ertm;
int l2cap_init_sockets(void);
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 6b8cc23..1e99210 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -710,6 +710,7 @@
.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)
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index f4e02b4..c6334fc 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -649,8 +649,7 @@
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 @@
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 @@
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 @@
dcid = chan->scid;
- __set_chan_timer(chan, sk->sk_sndtimeo);
+ __set_chan_timer(chan, chan->ops->get_sndtimeo(chan));
chan->ident = cmd->ident;
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 0de8a30..ffa78d3 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1136,6 +1136,13 @@
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 @@
.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,
};