diff options
Diffstat (limited to 'drivers/tty/pty.c')
| -rw-r--r-- | drivers/tty/pty.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c index 65799575c666..2a6bd9ae3f8b 100644 --- a/drivers/tty/pty.c +++ b/drivers/tty/pty.c @@ -481,6 +481,16 @@ static int pty_bsd_ioctl(struct tty_struct *tty, return -ENOIOCTLCMD; } +static long pty_bsd_compat_ioctl(struct tty_struct *tty, + unsigned int cmd, unsigned long arg) +{ + /* + * PTY ioctls don't require any special translation between 32-bit and + * 64-bit userspace, they are already compatible. + */ + return pty_bsd_ioctl(tty, cmd, arg); +} + static int legacy_count = CONFIG_LEGACY_PTY_COUNT; /* * not really modular, but the easiest way to keep compat with existing @@ -502,6 +512,7 @@ static const struct tty_operations master_pty_ops_bsd = { .chars_in_buffer = pty_chars_in_buffer, .unthrottle = pty_unthrottle, .ioctl = pty_bsd_ioctl, + .compat_ioctl = pty_bsd_compat_ioctl, .cleanup = pty_cleanup, .resize = pty_resize, .remove = pty_remove @@ -609,6 +620,16 @@ static int pty_unix98_ioctl(struct tty_struct *tty, return -ENOIOCTLCMD; } +static long pty_unix98_compat_ioctl(struct tty_struct *tty, + unsigned int cmd, unsigned long arg) +{ + /* + * PTY ioctls don't require any special translation between 32-bit and + * 64-bit userspace, they are already compatible. + */ + return pty_unix98_ioctl(tty, cmd, arg); +} + /** * ptm_unix98_lookup - find a pty master * @driver: ptm driver @@ -681,6 +702,7 @@ static const struct tty_operations ptm_unix98_ops = { .chars_in_buffer = pty_chars_in_buffer, .unthrottle = pty_unthrottle, .ioctl = pty_unix98_ioctl, + .compat_ioctl = pty_unix98_compat_ioctl, .resize = pty_resize, .cleanup = pty_cleanup }; |