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Subject[PATCH 39/68] TTY: amiserial/simserial, use count from tty_port
Date
Nothing special. Just remove count from serial_state and change all
users to use tty_port.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
---
arch/ia64/hp/sim/simserial.c | 24 ++++++++++++------------
drivers/tty/amiserial.c | 34 +++++++++++++++++-----------------
include/linux/serialP.h | 1 -
3 files changed, 29 insertions(+), 30 deletions(-)

diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c
index fb324b3..baa2b1e 100644
--- a/arch/ia64/hp/sim/simserial.c
+++ b/arch/ia64/hp/sim/simserial.c
@@ -500,26 +500,26 @@ static void rs_close(struct tty_struct *tty, struct file * filp)
return;
}
#ifdef SIMSERIAL_DEBUG
- printk("rs_close ttys%d, count = %d\n", info->line, info->count);
+ printk("rs_close ttys%d, count = %d\n", info->line, info->tport.count);
#endif
- if ((tty->count == 1) && (info->count != 1)) {
+ if ((tty->count == 1) && (info->tport.count != 1)) {
/*
* Uh, oh. tty->count is 1, which means that the tty
- * structure will be freed. info->count should always
+ * structure will be freed. info->tport.count should always
* be one in these conditions. If it's greater than
* one, we've got real problems, since it means the
* serial port won't be shutdown.
*/
printk(KERN_ERR "rs_close: bad serial port count; tty->count is 1, "
- "info->count is %d\n", info->count);
- info->count = 1;
+ "info->tport.count is %d\n", info->tport.count);
+ info->tport.count = 1;
}
- if (--info->count < 0) {
+ if (--info->tport.count < 0) {
printk(KERN_ERR "rs_close: bad serial port count for ttys%d: %d\n",
- info->line, info->count);
- info->count = 0;
+ info->line, info->tport.count);
+ info->tport.count = 0;
}
- if (info->count) {
+ if (info->tport.count) {
local_irq_restore(flags);
return;
}
@@ -567,7 +567,7 @@ static void rs_hangup(struct tty_struct *tty)
return;
shutdown(tty, info);

- info->count = 0;
+ info->tport.count = 0;
info->flags &= ~ASYNC_NORMAL_ACTIVE;
info->tport.tty = NULL;
wake_up_interruptible(&info->tport.open_wait);
@@ -661,13 +661,13 @@ static int rs_open(struct tty_struct *tty, struct file * filp)
int retval;
unsigned long page;

- info->count++;
+ info->tport.count++;
info->tport.tty = tty;
tty->driver_data = info;
tty->port = &info->tport;

#ifdef SIMSERIAL_DEBUG
- printk("rs_open %s, count = %d\n", tty->name, info->count);
+ printk("rs_open %s, count = %d\n", tty->name, info->tport.count);
#endif
tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;

diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c
index 06e3a09..8ad64a0 100644
--- a/drivers/tty/amiserial.c
+++ b/drivers/tty/amiserial.c
@@ -1383,26 +1383,26 @@ static void rs_close(struct tty_struct *tty, struct file * filp)
}

#ifdef SERIAL_DEBUG_OPEN
- printk("rs_close ttys%d, count = %d\n", state->line, state->count);
+ printk("rs_close ttys%d, count = %d\n", state->line, state->tport.count);
#endif
- if ((tty->count == 1) && (state->count != 1)) {
+ if ((tty->count == 1) && (state->tport.count != 1)) {
/*
* Uh, oh. tty->count is 1, which means that the tty
- * structure will be freed. state->count should always
+ * structure will be freed. state->tport.count should always
* be one in these conditions. If it's greater than
* one, we've got real problems, since it means the
* serial port won't be shutdown.
*/
printk("rs_close: bad serial port count; tty->count is 1, "
- "state->count is %d\n", state->count);
- state->count = 1;
+ "state->tport.count is %d\n", state->tport.count);
+ state->tport.count = 1;
}
- if (--state->count < 0) {
+ if (--state->tport.count < 0) {
printk("rs_close: bad serial port count for ttys%d: %d\n",
- state->line, state->count);
- state->count = 0;
+ state->line, state->tport.count);
+ state->tport.count = 0;
}
- if (state->count) {
+ if (state->tport.count) {
DBG_CNT("before DEC-2");
local_irq_restore(flags);
return;
@@ -1529,7 +1529,7 @@ static void rs_hangup(struct tty_struct *tty)

rs_flush_buffer(tty);
shutdown(tty, info);
- info->count = 0;
+ info->tport.count = 0;
info->flags &= ~ASYNC_NORMAL_ACTIVE;
info->tport.tty = NULL;
wake_up_interruptible(&info->tport.open_wait);
@@ -1584,7 +1584,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
/*
* Block waiting for the carrier detect and the line to become
* free (i.e., not in use by the callout). While we are in
- * this loop, info->count is dropped by one, so that
+ * this loop, info->tport.count is dropped by one, so that
* rs_close() knows when to free things. We restore it upon
* exit, either normal or abnormal.
*/
@@ -1592,12 +1592,12 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
add_wait_queue(&info->tport.open_wait, &wait);
#ifdef SERIAL_DEBUG_OPEN
printk("block_til_ready before block: ttys%d, count = %d\n",
- info->line, info->count);
+ info->line, info->tport.count);
#endif
local_irq_save(flags);
if (!tty_hung_up_p(filp)) {
extra_count = 1;
- info->count--;
+ info->tport.count--;
}
local_irq_restore(flags);
info->tport.blocked_open++;
@@ -1628,7 +1628,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
}
#ifdef SERIAL_DEBUG_OPEN
printk("block_til_ready blocking: ttys%d, count = %d\n",
- info->line, info->count);
+ info->line, info->tport.count);
#endif
tty_unlock();
schedule();
@@ -1637,11 +1637,11 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
__set_current_state(TASK_RUNNING);
remove_wait_queue(&info->tport.open_wait, &wait);
if (extra_count)
- info->count++;
+ info->tport.count++;
info->tport.blocked_open--;
#ifdef SERIAL_DEBUG_OPEN
printk("block_til_ready after blocking: ttys%d, count = %d\n",
- info->line, info->count);
+ info->line, info->tport.count);
#endif
if (retval)
return retval;
@@ -1660,7 +1660,7 @@ static int rs_open(struct tty_struct *tty, struct file * filp)
struct serial_state *info = rs_table + tty->index;
int retval;

- info->count++;
+ info->tport.count++;
info->tport.tty = tty;
tty->driver_data = info;
tty->port = &info->tport;
diff --git a/include/linux/serialP.h b/include/linux/serialP.h
index 997edd0..a6612b9 100644
--- a/include/linux/serialP.h
+++ b/include/linux/serialP.h
@@ -35,7 +35,6 @@ struct serial_state {
int line;
int xmit_fifo_size;
int custom_divisor;
- int count;
struct async_icount icount;
struct tty_port tport;

--
1.7.9.2



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