From afc5ab096581e1ad6e7e7d1533a6bbb1d2b12455 Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Sun, 10 Jan 2016 14:51:40 -0800 Subject: [PATCH] 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 Cc: Heiko Carstens Cc: linux-s390@vger.kernel.org Cc: Mikael Starvik Cc: Jesper Nilsson Cc: linux-cris-kernel@axis.com Cc: Samuel Ortiz Cc: "David S. Miller" Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman --- drivers/s390/char/con3215.c | 3 +-- drivers/tty/rocket.c | 2 +- drivers/tty/serial/68328serial.c | 3 +-- drivers/tty/serial/crisv10.c | 3 +-- drivers/tty/serial/serial_core.c | 1 - drivers/tty/tty_port.c | 3 +-- net/irda/ircomm/ircomm_tty.c | 4 ---- 7 files changed, 5 insertions(+), 14 deletions(-) diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index 7d82bbcb12df..e7e078b3c7e6 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -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); } diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c index 2ab3b6fdb675..0b802cdd70d0 100644 --- a/drivers/tty/rocket.c +++ b/drivers/tty/rocket.c @@ -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); diff --git a/drivers/tty/serial/68328serial.c b/drivers/tty/serial/68328serial.c index 4931212e5cf6..9587ed1242fe 100644 --- a/drivers/tty/serial/68328serial.c +++ b/drivers/tty/serial/68328serial.c @@ -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); } diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c index 37f10c4a3faf..c0172bf54a9b 100644 --- a/drivers/tty/serial/crisv10.c +++ b/drivers/tty/serial/crisv10.c @@ -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 */ diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index be9359fdf5c7..85829f8568e7 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -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); diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c index 0473fc7543f7..dbcca30a54b1 100644 --- a/drivers/tty/tty_port.c +++ b/drivers/tty/tty_port.c @@ -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); diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c index 1776fe5715e5..da126ee6d218 100644 --- a/net/irda/ircomm/ircomm_tty.c +++ b/net/irda/ircomm/ircomm_tty.c @@ -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 = '|'; -- 2.20.1