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

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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



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