c = to->receive_room;
if (c > count)
c = count;
- to->ldisc.receive_buf(to, buf, NULL, c);
+ to->ldisc.ops->receive_buf(to, buf, NULL, c);
return c;
}
int count;
/* We should get the line discipline lock for "tty->link" */
- if (!to || !to->ldisc.chars_in_buffer)
+ if (!to || !to->ldisc.ops->chars_in_buffer)
return 0;
/* The ldisc must report 0 if no characters available to be read */
- count = to->ldisc.chars_in_buffer(to);
+ count = to->ldisc.ops->chars_in_buffer(to);
if (tty->driver->subtype == PTY_TYPE_SLAVE) return count;
static void pty_flush_buffer(struct tty_struct *tty)
{
struct tty_struct *to = tty->link;
+ unsigned long flags;
if (!to)
return;
- if (to->ldisc.flush_buffer)
- to->ldisc.flush_buffer(to);
+ if (to->ldisc.ops->flush_buffer)
+ to->ldisc.ops->flush_buffer(to);
if (to->packet) {
+ spin_lock_irqsave(&tty->ctrl_lock, flags);
tty->ctrl_status |= TIOCPKT_FLUSHWRITE;
wake_up_interruptible(&to->read_wait);
+ spin_unlock_irqrestore(&tty->ctrl_lock, flags);
}
}
static int legacy_count = CONFIG_LEGACY_PTY_COUNT;
module_param(legacy_count, int, 0);
+static const struct tty_operations pty_ops_bsd = {
+ .open = pty_open,
+ .close = pty_close,
+ .write = pty_write,
+ .write_room = pty_write_room,
+ .flush_buffer = pty_flush_buffer,
+ .chars_in_buffer = pty_chars_in_buffer,
+ .unthrottle = pty_unthrottle,
+ .set_termios = pty_set_termios,
+ .ioctl = pty_bsd_ioctl,
+};
+
static void __init legacy_pty_init(void)
{
if (legacy_count <= 0)
pty_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW;
pty_driver->other = pty_slave_driver;
tty_set_operations(pty_driver, &pty_ops);
- pty_driver->ioctl = pty_bsd_ioctl;
pty_slave_driver->owner = THIS_MODULE;
pty_slave_driver->driver_name = "pty_slave";
return -ENOIOCTLCMD;
}
+static const struct tty_operations pty_unix98_ops = {
+ .open = pty_open,
+ .close = pty_close,
+ .write = pty_write,
+ .write_room = pty_write_room,
+ .flush_buffer = pty_flush_buffer,
+ .chars_in_buffer = pty_chars_in_buffer,
+ .unthrottle = pty_unthrottle,
+ .set_termios = pty_set_termios,
+ .ioctl = pty_unix98_ioctl
+};
+
+
static void __init unix98_pty_init(void)
{
ptm_driver = alloc_tty_driver(NR_UNIX98_PTY_MAX);
ptm_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW |
TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_DEVPTS_MEM;
ptm_driver->other = pts_driver;
- tty_set_operations(ptm_driver, &pty_ops);
- ptm_driver->ioctl = pty_unix98_ioctl;
+ tty_set_operations(ptm_driver, &pty_unix98_ops);
pts_driver->owner = THIS_MODULE;
pts_driver->driver_name = "pty_slave";