From 8d836d71e2223b8961b21112bb4ce89ef8231682 Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Tue, 15 Oct 2013 19:24:47 -0300 Subject: [PATCH] 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 Signed-off-by: Marcel Holtmann --- include/net/bluetooth/l2cap.h | 6 ++++++ net/bluetooth/a2mp.c | 1 + net/bluetooth/l2cap_core.c | 8 +++----- net/bluetooth/l2cap_sock.c | 8 ++++++++ 4 files changed, 18 insertions(+), 5 deletions(-) diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index 4ec86cec8914..9c6be72b6e4e 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -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); diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c index 6b8cc23787e2..1e9921024a1d 100644 --- a/net/bluetooth/a2mp.c +++ b/net/bluetooth/a2mp.c @@ -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) diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index f4e02b453984..c6334fc86d1d 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -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; diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index 0de8a30c06a1..ffa78d3cd8ac 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -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, };