linux-kernel - Re: [PATCH] [v3] y2038: introduce struct __kernel_old

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Date:   Fri, 16 Mar 2018 12:57:50 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Arnd Bergmann <arnd@...db.de>
cc:     John Stultz <john.stultz@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Al Viro <viro@...iv.linux.org.uk>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [v3] y2038: introduce struct __kernel_old_timeval

On Thu, 15 Mar 2018, Arnd Bergmann wrote:
> diff --git a/include/uapi/linux/time.h b/include/uapi/linux/time.h
> index 4ed5bd3a3145..94adfae599e0 100644
> --- a/include/uapi/linux/time.h
> +++ b/include/uapi/linux/time.h
> @@ -50,6 +50,18 @@ struct __kernel_timespec {
>  #endif
>

This does neither apply against mainline nor against tip/timers/core

That #endif is nowhere ....

>  /*
> + * legacy timeval structure, only embedded in structures that
> + * traditionally used 'timeval' to pass time intervals (not absolute
> + * times). Do not add new users. If user space fails to compile
> + * here, this is probably because it is not y2038 safe and needs to
> + * be changed to use another interface.
> + */
> +struct __kernel_old_timeval {
> +	__kernel_long_t tv_sec;
> +	__kernel_long_t tv_usec;
> +};