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tty: Remove ASYNC_CLOSING 

The tty core no longer provides nor uses ASYNC_CLOSING; remove from
tty_port_close_start() and tty_port_close_end() as well as tty drivers
which open-code these state changes. Unfortunately, even though the
bit is masked from userspace, its inclusion in a uapi header precludes
removing the macro.

Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: linux-cris-kernel@axis.com
Cc: Samuel Ortiz <samuel@sortiz.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley 2016-01-10 14:51:40 -08:00 committed by Greg Kroah-Hartman
parent a657eecd02
commit afc5ab0965
7 changed files with 5 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/s390/char/con3215.c
View File

@ -643,7 +643,6 @@ static void raw3215_shutdown(struct raw3215_info *raw)
if ((raw->flags & RAW3215_WORKING) ||
raw->queued_write != NULL ||
raw->queued_read != NULL) {
raw->port.flags |= ASYNC_CLOSING;
add_wait_queue(&raw->empty_wait, &wait);
set_current_state(TASK_INTERRUPTIBLE);
spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
@ -651,7 +650,7 @@ static void raw3215_shutdown(struct raw3215_info *raw)
spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
remove_wait_queue(&raw->empty_wait, &wait);
set_current_state(TASK_RUNNING);
raw->port.flags &= ~(ASYNC_INITIALIZED | ASYNC_CLOSING);
raw->port.flags &= ~ASYNC_INITIALIZED;
}
spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
}

2
drivers/tty/rocket.c
View File

@ -1042,7 +1042,7 @@ static void rp_close(struct tty_struct *tty, struct file *filp)
}
}
spin_lock_irq(&port->lock);
info->port.flags &= ~(ASYNC_INITIALIZED | ASYNC_CLOSING | ASYNC_NORMAL_ACTIVE);
info->port.flags &= ~(ASYNC_INITIALIZED | ASYNC_NORMAL_ACTIVE);
tty->closing = 0;
spin_unlock_irq(&port->lock);
mutex_unlock(&port->mutex);

3
drivers/tty/serial/68328serial.c
View File

@ -1028,7 +1028,6 @@ static void rs_close(struct tty_struct *tty, struct file *filp)
local_irq_restore(flags);
return;
}
port->flags |= ASYNC_CLOSING;
/*
* Now we wait for the transmit buffer to clear; and we notify
* the line discipline to only process XON/XOFF characters.
@ -1058,7 +1057,7 @@ static void rs_close(struct tty_struct *tty, struct file *filp)
msleep_interruptible(jiffies_to_msecs(port->close_delay));
wake_up_interruptible(&port->open_wait);
}
port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
port->flags &= ~ASYNC_NORMAL_ACTIVE;
local_irq_restore(flags);
}

3
drivers/tty/serial/crisv10.c
View File

@ -3610,7 +3610,6 @@ rs_close(struct tty_struct *tty, struct file * filp)
local_irq_restore(flags);
return;
}
info->port.flags |= ASYNC_CLOSING;
/*
* Now we wait for the transmit buffer to clear; and we notify
* the line discipline to only process XON/XOFF characters.
@ -3649,7 +3648,7 @@ rs_close(struct tty_struct *tty, struct file * filp)
schedule_timeout_interruptible(info->port.close_delay);
wake_up_interruptible(&info->port.open_wait);
}
info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
local_irq_restore(flags);
/* port closed */

1
drivers/tty/serial/serial_core.c
View File

@ -1423,7 +1423,6 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
* Wake up anyone trying to open this port.
*/
clear_bit(ASYNCB_NORMAL_ACTIVE, &port->flags);
clear_bit(ASYNCB_CLOSING, &port->flags);
spin_unlock_irq(&port->lock);
wake_up_interruptible(&port->open_wait);

3
drivers/tty/tty_port.c
View File

@ -476,7 +476,6 @@ int tty_port_close_start(struct tty_port *port,
spin_unlock_irqrestore(&port->lock, flags);
return 0;
}
set_bit(ASYNCB_CLOSING, &port->flags);
spin_unlock_irqrestore(&port->lock, flags);
tty->closing = 1;
@ -515,7 +514,7 @@ void tty_port_close_end(struct tty_port *port, struct tty_struct *tty)
spin_lock_irqsave(&port->lock, flags);
wake_up_interruptible(&port->open_wait);
}
port->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
port->flags &= ~ASYNC_NORMAL_ACTIVE;
spin_unlock_irqrestore(&port->lock, flags);
}
EXPORT_SYMBOL(tty_port_close_end);

4
net/irda/ircomm/ircomm_tty.c
View File

@ -1267,10 +1267,6 @@ static void ircomm_tty_line_info(struct ircomm_tty_cb *self, struct seq_file *m)
seq_printf(m, "%cASYNC_LOW_LATENCY", sep);
sep = '|';
}
if (self->port.flags & ASYNC_CLOSING) {
seq_printf(m, "%cASYNC_CLOSING", sep);
sep = '|';
}
if (self->port.flags & ASYNC_NORMAL_ACTIVE) {
seq_printf(m, "%cASYNC_NORMAL_ACTIVE", sep);
sep = '|';