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From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Marco Elver <elver@google.com>,
	linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com,
	linux-mm@kvack.org
Cc: Petr Mladek <pmladek@suse.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Sergey Senozhatsky <senozhatsky@chromium.org>,
	Alexander Potapenko <glider@google.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH v1 3/4] lib/vsprintf: Remove implied inclusions
Date: Fri, 4 Aug 2023 11:36:15 +0200	[thread overview]
Message-ID: <33e128e8-9330-c73e-4c55-e56cbc87450a@rasmusvillemoes.dk> (raw)
In-Reply-To: <20230804082619.61833-4-andriy.shevchenko@linux.intel.com>

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



  reply	other threads:[~2023-08-04  9:36 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-04  8:26 [PATCH v1 0/4] lib/vsprintf: Rework header inclusions Andy Shevchenko
2023-08-04  8:26 ` [PATCH v1 1/4] lib/vsprintf: Declare no_hash_pointers in a local header Andy Shevchenko
2023-08-04  8:38   ` Marco Elver
2023-08-04 16:55     ` Steven Rostedt
2023-08-04 16:54   ` Steven Rostedt
2023-08-04  8:26 ` [PATCH v1 2/4] lib/vsprintf: Sort headers alphabetically Andy Shevchenko
2023-08-04  8:26 ` [PATCH v1 3/4] lib/vsprintf: Remove implied inclusions Andy Shevchenko
2023-08-04  9:36   ` Rasmus Villemoes [this message]
2023-08-04 20:31     ` Andy Shevchenko
2023-08-04  8:26 ` [PATCH v1 4/4] lib/vsprintf: Split out sprintf() and friends Andy Shevchenko
2023-08-04  9:31   ` Rasmus Villemoes
2023-08-04 20:34     ` Andy Shevchenko

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