1) The semantics are defined exactly nowhere. 2) The ioctl definition was never exposed to userspace, so noone should actually be reliably using this. 3) It's not even mentioned in any of the mxser utilities. Provided the above, remove this mxser-special ioctl. Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> --- drivers/tty/mxser.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c index ca417d9a03cf..586fa3575673 100644 --- a/drivers/tty/mxser.c +++ b/drivers/tty/mxser.c @@ -50,7 +50,6 @@ */ #define MOXA 0x400 -#define MOXA_HighSpeedOn (MOXA + 61) #define MOXA_SET_OP_MODE (MOXA + 66) #define MOXA_GET_OP_MODE (MOXA + 67) @@ -1495,8 +1494,6 @@ static int mxser_ioctl(struct tty_struct *tty, return wait_event_interruptible(info->port.delta_msr_wait, mxser_cflags_changed(info, arg, &cnow)); - case MOXA_HighSpeedOn: - return put_user(info->baud_base != 115200 ? 1 : 0, (int __user *)argp); default: return -ENOIOCTLCMD; } -- 2.32.0
