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Commit a30737ab authored by Peter Hurley's avatar Peter Hurley Committed by Greg Kroah-Hartman
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n_tty: Factor packet mode status change for reuse 



Factor the packet mode status change from n_tty_flush_buffer
for use by follow-on patch.

Signed-off-by: default avatarPeter Hurley <peter@hurleysoftware.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 21622939

drivers/tty/n_tty.c

+14 −10
Original line number Diff line number Diff line
@@ -223,6 +223,18 @@ static void reset_buffer_flags(struct tty_struct *tty) 
	n_tty_set_room(tty);

}



static void n_tty_packet_mode_flush(struct tty_struct *tty)

{

	unsigned long flags;



	spin_lock_irqsave(&tty->ctrl_lock, flags);

	if (tty->link->packet) {

		tty->ctrl_status |= TIOCPKT_FLUSHREAD;

		wake_up_interruptible(&tty->link->read_wait);

	}

	spin_unlock_irqrestore(&tty->ctrl_lock, flags);

}



/**

 *	n_tty_flush_buffer	-	clean input queue

 *	@tty:	terminal device
@@ -237,19 +249,11 @@ static void reset_buffer_flags(struct tty_struct *tty) 


static void n_tty_flush_buffer(struct tty_struct *tty)

{

	unsigned long flags;

	/* clear everything and unthrottle the driver */

	reset_buffer_flags(tty);



	if (!tty->link)

		return;



	spin_lock_irqsave(&tty->ctrl_lock, flags);

	if (tty->link->packet) {

		tty->ctrl_status |= TIOCPKT_FLUSHREAD;

		wake_up_interruptible(&tty->link->read_wait);

	}

	spin_unlock_irqrestore(&tty->ctrl_lock, flags);

	if (tty->link)

		n_tty_packet_mode_flush(tty);

}



/**