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tty: moxa: Kill off the throttle method 

The tty flag can be tested so the shadow flag isn't needed

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hifive-unleashed-5.1
Alan Cox 2009-11-30 13:18:08 +00:00 committed by Greg Kroah-Hartman
parent a808ac0c4a
commit f9b412a8c9
1 changed files with 1 additions and 20 deletions
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21
drivers/char/moxa.c
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@ -154,7 +154,6 @@ struct mon_str {
#define TXSTOPPED 1
#define LOWWAIT 2
#define EMPTYWAIT 3
#define THROTTLE 4
#define SERIAL_DO_RESTART
@ -194,8 +193,6 @@ static int moxa_write(struct tty_struct *, const unsigned char *, int);
static int moxa_write_room(struct tty_struct *);
static void moxa_flush_buffer(struct tty_struct *);
static int moxa_chars_in_buffer(struct tty_struct *);
static void moxa_throttle(struct tty_struct *);
static void moxa_unthrottle(struct tty_struct *);
static void moxa_set_termios(struct tty_struct *, struct ktermios *);
static void moxa_stop(struct tty_struct *);
static void moxa_start(struct tty_struct *);
@ -415,8 +412,6 @@ static const struct tty_operations moxa_ops = {
.flush_buffer = moxa_flush_buffer,
.chars_in_buffer = moxa_chars_in_buffer,
.ioctl = moxa_ioctl,
.throttle = moxa_throttle,
.unthrottle = moxa_unthrottle,
.set_termios = moxa_set_termios,
.stop = moxa_stop,
.start = moxa_start,
@ -1327,20 +1322,6 @@ static int moxa_tiocmset(struct tty_struct *tty, struct file *file,
return 0;
}
static void moxa_throttle(struct tty_struct *tty)
{
struct moxa_port *ch = tty->driver_data;
set_bit(THROTTLE, &ch->statusflags);
}
static void moxa_unthrottle(struct tty_struct *tty)
{
struct moxa_port *ch = tty->driver_data;
clear_bit(THROTTLE, &ch->statusflags);
}
static void moxa_set_termios(struct tty_struct *tty,
struct ktermios *old_termios)
{
@ -1418,7 +1399,7 @@ static int moxa_poll_port(struct moxa_port *p, unsigned int handle,
tty_wakeup(tty);
}
if (inited && !test_bit(THROTTLE, &p->statusflags) &&
if (inited && !test_bit(TTY_THROTTLED, &tty->flags) &&
MoxaPortRxQueue(p) > 0) { /* RX */
MoxaPortReadData(p);
tty_schedule_flip(tty);