Re: [PATCH 2/3] vstatus: Add user space API definitions for VSTATUS, NOKERNINFO and TIOCSTAT

From: Arnd Bergmann
Date: Tue Jan 18 2022 - 03:09:04 EST


On Tue, Jan 18, 2022 at 5:43 AM Walt Drummond <walt@xxxxxxxxxxx> wrote:

> diff --git a/include/uapi/asm-generic/ioctls.h b/include/uapi/asm-generic/ioctls.h
> index cdc9f4ca8c27..eafb662d6a0e 100644
> --- a/include/uapi/asm-generic/ioctls.h
> +++ b/include/uapi/asm-generic/ioctls.h
> @@ -97,6 +97,7 @@
>
> #define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */
> #define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
> +#define TIOCSTAT 0x545E /* display process group stats on tty */
>
> /*
> * Some arches already define FIOQSIZE due to a historical

I don't see any advantage in using the old-style ioctl command definitions
here, and looking through the history of this file, all recent additions used
the now normal _IOWR() style macros, so please use those as well.

Arnd