linux-kernel - Re: [PATCH v2 14/20] linux/compiler_types.h, linux/same_type.h: Split __same

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Message-ID: <CAK8P3a3TzHsPUf2rLamL7kxWST3YDDcZwV8bA9LU5M0akkZM-Q@mail.gmail.com>
Date:   Sun, 21 Nov 2021 14:26:48 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Alejandro Colomar <alx.manpages@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Arnd Bergmann <arnd@...db.de>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Kees Cook <keescook@...omium.org>,
        Joe Perches <joe@...ches.com>
Subject: Re: [PATCH v2 14/20] linux/compiler_types.h, linux/same_type.h: Split
 __same_type() to a separate header

On Sat, Nov 20, 2021 at 2:00 PM Alejandro Colomar
<alx.manpages@...il.com> wrote:
> --- /dev/null
> +++ b/include/linux/same_type.h
> @@ -0,0 +1,10 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +#ifndef __LINUX_SAME_TYPE_H
> +#define __LINUX_SAME_TYPE_H
> +
> +
> +/* Are two types/vars the same type (ignoring qualifiers)? */
> +#define __same_type(a, b)  __builtin_types_compatible_p(typeof(a), typeof(b))
> +

Having a separate header for this is really silly. Please find a
header with similar
definitions that you can add this to.

       Arnd