[PATCH] tty: Remove TTY_HW_COOK_IN/OUT

Peter Hurley
2013-05-17T16:50:16Z

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

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
---
drivers/tty/n_tty.c | 12 +++---------
include/linux/tty.h | 2 --
2 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 5d95873..f5b9211 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -746,8 +746,7 @@ static size_t __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;
@@ -1767,12 +1766,7 @@ 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) ||
@@ -2312,7 +2306,7 @@ 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) {
diff --git a/include/linux/tty.h b/include/linux/tty.h
index e10846a..3efeb1b 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -307,8 +307,6 @@ struct tty_file_private {
#define TTY_DO_WRITE_WAKEUP 5 /* Call write_wakeup after queuing new */
#define TTY_CLOSING 7 /* ->close() in progress */
#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() */
--
1.8.1.2