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authorJiri Slaby <jslaby@suse.cz>2012-04-02 13:54:52 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-09 12:04:31 -0700
commitb2c4be398bf771a09f84eae6cf12cbd685384b8d (patch)
treea5520240386e2904fa6d20e1b7e9aff48859bc7f /net
parent67054019289ff11a7ffbc1a5d3c95aeb36e2f03e (diff)
downloadop-kernel-dev-b2c4be398bf771a09f84eae6cf12cbd685384b8d.zip
op-kernel-dev-b2c4be398bf771a09f84eae6cf12cbd685384b8d.tar.gz
TTY: rfcomm/tty, remove work for tty_wakeup
tty_wakeup is safe to be called from all contexts. No need to schedule a work for that. Let us call it directly like in other drivers. This allows us to kill another member of rfcomm_dev structure. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
-rw-r--r--net/bluetooth/rfcomm/tty.c22
1 files changed, 3 insertions, 19 deletions
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index da4f545..0433d26 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -65,7 +65,6 @@ struct rfcomm_dev {
struct rfcomm_dlc *dlc;
wait_queue_head_t wait;
- struct work_struct wakeup_task;
struct device *tty_dev;
@@ -81,8 +80,6 @@ static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc, struct sk_buff *skb);
static void rfcomm_dev_state_change(struct rfcomm_dlc *dlc, int err);
static void rfcomm_dev_modem_status(struct rfcomm_dlc *dlc, u8 v24_sig);
-static void rfcomm_tty_wakeup(struct work_struct *work);
-
/* ---- Device functions ---- */
/*
@@ -248,7 +245,6 @@ static int rfcomm_dev_add(struct rfcomm_dev_req *req, struct rfcomm_dlc *dlc)
tty_port_init(&dev->port);
dev->port.ops = &rfcomm_port_ops;
init_waitqueue_head(&dev->wait);
- INIT_WORK(&dev->wakeup_task, rfcomm_tty_wakeup);
skb_queue_head_init(&dev->pending);
@@ -340,9 +336,10 @@ static inline unsigned int rfcomm_room(struct rfcomm_dlc *dlc)
static void rfcomm_wfree(struct sk_buff *skb)
{
struct rfcomm_dev *dev = (void *) skb->sk;
+ struct tty_struct *tty = dev->port.tty;
atomic_sub(skb->truesize, &dev->wmem_alloc);
- if (test_bit(RFCOMM_TTY_ATTACHED, &dev->flags))
- queue_work(system_nrt_wq, &dev->wakeup_task);
+ if (test_bit(RFCOMM_TTY_ATTACHED, &dev->flags) && tty)
+ tty_wakeup(tty);
tty_port_put(&dev->port);
}
@@ -625,18 +622,6 @@ static void rfcomm_dev_modem_status(struct rfcomm_dlc *dlc, u8 v24_sig)
}
/* ---- TTY functions ---- */
-static void rfcomm_tty_wakeup(struct work_struct *work)
-{
- struct rfcomm_dev *dev = container_of(work, struct rfcomm_dev,
- wakeup_task);
- struct tty_struct *tty = dev->port.tty;
- if (!tty)
- return;
-
- BT_DBG("dev %p tty %p", dev, tty);
- tty_wakeup(tty);
-}
-
static void rfcomm_tty_copy_pending(struct rfcomm_dev *dev)
{
struct tty_struct *tty = dev->port.tty;
@@ -753,7 +738,6 @@ static void rfcomm_tty_close(struct tty_struct *tty, struct file *filp)
rfcomm_dlc_close(dev->dlc, 0);
clear_bit(RFCOMM_TTY_ATTACHED, &dev->flags);
- cancel_work_sync(&dev->wakeup_task);
rfcomm_dlc_lock(dev->dlc);
tty->driver_data = NULL;
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