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tty: Remove TTY_HW_COOK_IN/OUT 

No in-tree tty driver supports cooked mode in hardware; remove.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley 2013-05-17 12:49:48 -04:00 committed by Greg Kroah-Hartman
parent e424259e2e
commit 582f55907d
2 changed files with 3 additions and 11 deletions
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12
drivers/tty/n_tty.c
View File

@ -647,8 +647,7 @@ static void process_echoes(struct tty_struct *tty)
if (no_space_left)
break;
} else {
if (O_OPOST(tty) &&
!(test_bit(TTY_HW_COOK_OUT, &tty->flags))) {
if (O_OPOST(tty)) {
int retval = do_output_char(c, tty, space);
if (retval < 0)
break;
@ -1516,12 +1515,7 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
wake_up_interruptible(&tty->read_wait);
ldata->icanon = (L_ICANON(tty) != 0);
if (test_bit(TTY_HW_COOK_IN, &tty->flags)) {
ldata->raw = 1;
ldata->real_raw = 1;
n_tty_set_room(tty);
return;
}
if (I_ISTRIP(tty) || I_IUCLC(tty) || I_IGNCR(tty) ||
I_ICRNL(tty) || I_INLCR(tty) || L_ICANON(tty) ||
I_IXON(tty) || L_ISIG(tty) || L_ECHO(tty) ||
@ -2037,7 +2031,7 @@ static ssize_t n_tty_write(struct tty_struct *tty, struct file *file,
retval = -EIO;
break;
}
if (O_OPOST(tty) && !(test_bit(TTY_HW_COOK_OUT, &tty->flags))) {
if (O_OPOST(tty)) {
while (nr > 0) {
ssize_t num = process_output_block(tty, b, nr);
if (num < 0) {

2
include/linux/tty.h
View File

@ -309,8 +309,6 @@ struct tty_file_private {
#define TTY_LDISC 9 /* Line discipline attached */
#define TTY_LDISC_CHANGING 10 /* Line discipline changing */
#define TTY_LDISC_OPEN 11 /* Line discipline is open */
#define TTY_HW_COOK_OUT 14 /* Hardware can do output cooking */
#define TTY_HW_COOK_IN 15 /* Hardware can do input cooking */
#define TTY_PTY_LOCK 16 /* pty private */
#define TTY_NO_WRITE_SPLIT 17 /* Preserve write boundaries to driver */
#define TTY_HUPPED 18 /* Post driver->hangup() */