diff options
Diffstat (limited to 'drivers/tty/tty_ioctl.c')
| -rw-r--r-- | drivers/tty/tty_ioctl.c | 32 |
1 files changed, 1 insertions, 31 deletions
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c index ab4562c06af4..24a136079d90 100644 --- a/drivers/tty/tty_ioctl.c +++ b/drivers/tty/tty_ioctl.c @@ -524,10 +524,7 @@ EXPORT_SYMBOL(tty_termios_hw_change); * @tty: tty to update * @new_termios: desired new value * - * Perform updates to the termios values set on this terminal. There - * is a bit of layering violation here with n_tty in terms of the - * internal knowledge of this function. - * + * Perform updates to the termios values set on this terminal. * A master pty's termios should never be set. * * Locking: termios_rwsem @@ -537,7 +534,6 @@ int tty_set_termios(struct tty_struct *tty, struct ktermios *new_termios) { struct ktermios old_termios; struct tty_ldisc *ld; - unsigned long flags; WARN_ON(tty->driver->type == TTY_DRIVER_TYPE_PTY && tty->driver->subtype == PTY_TYPE_MASTER); @@ -553,32 +549,6 @@ int tty_set_termios(struct tty_struct *tty, struct ktermios *new_termios) tty->termios = *new_termios; unset_locked_termios(&tty->termios, &old_termios, &tty->termios_locked); - /* See if packet mode change of state. */ - if (tty->link && tty->link->packet) { - int extproc = (old_termios.c_lflag & EXTPROC) | - (tty->termios.c_lflag & EXTPROC); - int old_flow = ((old_termios.c_iflag & IXON) && - (old_termios.c_cc[VSTOP] == '\023') && - (old_termios.c_cc[VSTART] == '\021')); - int new_flow = (I_IXON(tty) && - STOP_CHAR(tty) == '\023' && - START_CHAR(tty) == '\021'); - if ((old_flow != new_flow) || extproc) { - spin_lock_irqsave(&tty->ctrl_lock, flags); - if (old_flow != new_flow) { - tty->ctrl_status &= ~(TIOCPKT_DOSTOP | TIOCPKT_NOSTOP); - if (new_flow) - tty->ctrl_status |= TIOCPKT_DOSTOP; - else - tty->ctrl_status |= TIOCPKT_NOSTOP; - } - if (extproc) - tty->ctrl_status |= TIOCPKT_IOCTL; - spin_unlock_irqrestore(&tty->ctrl_lock, flags); - wake_up_interruptible(&tty->link->read_wait); - } - } - if (tty->ops->set_termios) (*tty->ops->set_termios)(tty, &old_termios); else |