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[PATCH] Char: mxser_new, remove unused stuff

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- nobody waits on close_wait
- ASYNC_SPLIT_TERMIOS is not set by anybody, so do not test this flag
- process session and pgrp are useless information

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jiri Slaby 2007-02-10 01:45:14 -08:00 • committed by Linus Torvalds
parent cbcdc1debd
commit a24f1405b0
1 changed files with 0 additions and 18 deletions
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18
drivers/char/mxser_new.c
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@ -237,8 +237,6 @@ struct mxser_port {
long realbaud; long realbaud;
int type; /* UART type */ int type; /* UART type */
int flags; /* defined in tty.h */ int flags; /* defined in tty.h */
long session; /* Session of opening process */
long pgrp; /* pgrp of opening process */
int x_char; /* xon/xoff character */ int x_char; /* xon/xoff character */
int IER; /* Interrupt Enable Register */ int IER; /* Interrupt Enable Register */
@ -267,14 +265,12 @@ struct mxser_port {
int xmit_cnt; int xmit_cnt;
struct ktermios normal_termios; struct ktermios normal_termios;
struct ktermios callout_termios;
struct mxser_mon mon_data; struct mxser_mon mon_data;
spinlock_t slock; spinlock_t slock;
struct work_struct tqueue; struct work_struct tqueue;
wait_queue_head_t open_wait; wait_queue_head_t open_wait;
wait_queue_head_t close_wait;
wait_queue_head_t delta_msr_wait; wait_queue_head_t delta_msr_wait;
}; };
@ -936,17 +932,6 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
if (retval) if (retval)
return retval; return retval;
if ((info->count == 1) && (info->flags & ASYNC_SPLIT_TERMIOS)) {
if (tty->driver->subtype == SERIAL_TYPE_NORMAL)
*tty->termios = info->normal_termios;
else
*tty->termios = info->callout_termios;
mxser_change_speed(info, NULL);
}
info->session = process_session(current);
info->pgrp = process_group(current);
/* unmark here for very high baud rate (ex. 921600 bps) used */ /* unmark here for very high baud rate (ex. 921600 bps) used */
tty->low_latency = 1; tty->low_latency = 1;
return 0; return 0;
@ -1053,8 +1038,6 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
} }
info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
wake_up_interruptible(&info->close_wait);
} }
static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int count) static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int count)
@ -2420,7 +2403,6 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
INIT_WORK(&info->tqueue, mxser_do_softint); INIT_WORK(&info->tqueue, mxser_do_softint);
info->normal_termios = mxvar_sdriver->init_termios; info->normal_termios = mxvar_sdriver->init_termios;
init_waitqueue_head(&info->open_wait); init_waitqueue_head(&info->open_wait);
init_waitqueue_head(&info->close_wait);
init_waitqueue_head(&info->delta_msr_wait); init_waitqueue_head(&info->delta_msr_wait);
memset(&info->mon_data, 0, sizeof(struct mxser_mon)); memset(&info->mon_data, 0, sizeof(struct mxser_mon));
info->err_shadow = 0; info->err_shadow = 0;