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Message-ID: <33e128e8-9330-c73e-4c55-e56cbc87450a@rasmusvillemoes.dk>
Date:   Fri, 4 Aug 2023 11:36:15 +0200
From:   Rasmus Villemoes <linux@...musvillemoes.dk>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Marco Elver <elver@...gle.com>, linux-kernel@...r.kernel.org,
        kasan-dev@...glegroups.com, linux-mm@...ck.org
Cc:     Petr Mladek <pmladek@...e.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v1 3/4] lib/vsprintf: Remove implied inclusions

On 04/08/2023 10.26, Andy Shevchenko wrote:
> Remove inclusions that are implied and guaranteed to be provided by others:
> 
>   compiler.h	by types.h
>   string.hi	by string_helpers.h

What? No. That's not what we want. Each .c and each .h file should
include the headers that declare the stuff they're using. So if
string_helpers.h magically stops referring to anything from string.h,
one should be allowed to stop including string.h from string_helpers.h.

Sure, those two may forever be so intertwined that it never happens, but
one really can't maintain some matrix of "X always includes Y so if you
include X you don't have to include Y" in one's head.

Rasmus

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