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Bluetooth: Refactor locking in amp_physical_cfm 

Remove locking from l2cap_physical_cfm and lock chan inside
amp_physical_cfm.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
This commit is contained in:
Andrei Emeltchenko 2012-11-14 17:39:30 +02:00 коммит произвёл Gustavo Padovan
Родитель 522db70286
Коммит a514b17fab
3 изменённых файлов: 8 добавлений и 7 удалений
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2
include/net/bluetooth/l2cap.h
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@ -811,6 +811,6 @@ void l2cap_send_conn_req(struct l2cap_chan *chan);
void l2cap_move_start(struct l2cap_chan *chan); void l2cap_move_start(struct l2cap_chan *chan);
void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan, void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan,
u8 status); u8 status);
void l2cap_physical_cfm(struct l2cap_chan *chan, int result); void __l2cap_physical_cfm(struct l2cap_chan *chan, int result);
#endif /* __L2CAP_H */ #endif /* __L2CAP_H */

6
net/bluetooth/amp.c
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@ -386,13 +386,17 @@ void amp_physical_cfm(struct hci_conn *bredr_hcon, struct hci_conn *hs_hcon)
bredr_chan = mgr->bredr_chan; bredr_chan = mgr->bredr_chan;
l2cap_chan_lock(bredr_chan);
set_bit(FLAG_EFS_ENABLE, &bredr_chan->flags); set_bit(FLAG_EFS_ENABLE, &bredr_chan->flags);
bredr_chan->remote_amp_id = hs_hcon->remote_id; bredr_chan->remote_amp_id = hs_hcon->remote_id;
bredr_chan->hs_hcon = hs_hcon; bredr_chan->hs_hcon = hs_hcon;
bredr_chan->conn->mtu = hs_hcon->hdev->block_mtu; bredr_chan->conn->mtu = hs_hcon->hdev->block_mtu;
bredr_chan->fcs = L2CAP_FCS_NONE; bredr_chan->fcs = L2CAP_FCS_NONE;
l2cap_physical_cfm(bredr_chan, 0); __l2cap_physical_cfm(bredr_chan, 0);
l2cap_chan_unlock(bredr_chan);
hci_dev_put(bredr_hdev); hci_dev_put(bredr_hdev);
} }

7
net/bluetooth/l2cap_core.c
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@ -4611,7 +4611,8 @@ static void l2cap_do_move_cancel(struct l2cap_chan *chan, int result)
l2cap_ertm_send(chan); l2cap_ertm_send(chan);
} }
void l2cap_physical_cfm(struct l2cap_chan *chan, int result) /* Invoke with locked chan */
void __l2cap_physical_cfm(struct l2cap_chan *chan, int result)
{ {
u8 local_amp_id = chan->local_amp_id; u8 local_amp_id = chan->local_amp_id;
u8 remote_amp_id = chan->remote_amp_id; u8 remote_amp_id = chan->remote_amp_id;
@ -4619,8 +4620,6 @@ void l2cap_physical_cfm(struct l2cap_chan *chan, int result)
BT_DBG("chan %p, result %d, local_amp_id %d, remote_amp_id %d", BT_DBG("chan %p, result %d, local_amp_id %d, remote_amp_id %d",
chan, result, local_amp_id, remote_amp_id); chan, result, local_amp_id, remote_amp_id);
l2cap_chan_lock(chan);
if (chan->state == BT_DISCONN || chan->state == BT_CLOSED) { if (chan->state == BT_DISCONN || chan->state == BT_CLOSED) {
l2cap_chan_unlock(chan); l2cap_chan_unlock(chan);
return; return;
@ -4644,8 +4643,6 @@ void l2cap_physical_cfm(struct l2cap_chan *chan, int result)
break; break;
} }
} }
l2cap_chan_unlock(chan);
} }
static inline int l2cap_move_channel_req(struct l2cap_conn *conn, static inline int l2cap_move_channel_req(struct l2cap_conn *conn,