From e21120383f2dce32312f63ffca145ff8a87d41f5 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 11 Sep 2018 19:47:09 -0400 Subject: move compat handling of tty ioctls to tty_compat_ioctl() ioctls that are * callable only via tty_ioctl() * not driver-specific * not demand data structure conversions * either always need passing arg as is or always demand compat_ptr() get intercepted in tty_compat_ioctl() from the very beginning and redirecter to tty_ioctl(). As the result, their entries in fs/compat_ioctl.c (some of those had been missing, BTW) got removed, as well as n_tty_compat_ioctl_helper() (now it's never called with any cmd it would accept). Signed-off-by: Al Viro --- drivers/tty/tty_ioctl.c | 16 ---------------- 1 file changed, 16 deletions(-) (limited to 'drivers/tty/tty_ioctl.c') diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c index d99fec44036c..9245fffdbceb 100644 --- a/drivers/tty/tty_ioctl.c +++ b/drivers/tty/tty_ioctl.c @@ -941,19 +941,3 @@ int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file, } } EXPORT_SYMBOL(n_tty_ioctl_helper); - -#ifdef CONFIG_COMPAT -long n_tty_compat_ioctl_helper(struct tty_struct *tty, struct file *file, - unsigned int cmd, unsigned long arg) -{ - switch (cmd) { - case TIOCGLCKTRMIOS: - case TIOCSLCKTRMIOS: - return tty_mode_ioctl(tty, file, cmd, (unsigned long) compat_ptr(arg)); - default: - return -ENOIOCTLCMD; - } -} -EXPORT_SYMBOL(n_tty_compat_ioctl_helper); -#endif - -- cgit v1.2.3