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Date: Sun, 10 Jan 2016 14:51:40 -0800
From: Peter Hurley <peter@...leysoftware.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Jiri Slaby <jslaby@...e.cz>, linux-serial@...r.kernel.org,
linux-kernel@...r.kernel.org,
Peter Hurley <peter@...leysoftware.com>,
Martin Schwidefsky <schwidefsky@...ibm.com>,
Heiko Carstens <heiko.carstens@...ibm.com>,
linux-s390@...r.kernel.org, Mikael Starvik <starvik@...s.com>,
Jesper Nilsson <jesper.nilsson@...s.com>,
linux-cris-kernel@...s.com, Samuel Ortiz <samuel@...tiz.org>,
"David S. Miller" <davem@...emloft.net>
Subject: [PATCH v2 3/3] 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@...ibm.com>
Cc: Heiko Carstens <heiko.carstens@...ibm.com>
Cc: linux-s390@...r.kernel.org
Cc: Mikael Starvik <starvik@...s.com>
Cc: Jesper Nilsson <jesper.nilsson@...s.com>
Cc: linux-cris-kernel@...s.com
Cc: Samuel Ortiz <samuel@...tiz.org>
Cc: "David S. Miller" <davem@...emloft.net>
Signed-off-by: Peter Hurley <peter@...leysoftware.com>
---
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 0fc3fe5..d19d030 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 2ab3b6f..0b802cd 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 3804b41..81c3cd9 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 df740c5..8e10172 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 0baa231..bdff7fe 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 1fbba8e..101a8c2 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 1776fe5..da126ee 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 = '|';
--
2.7.0
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