linux-kernel - Re: [PATCH] lib/string: shrink lib/string.i via IWYU

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Message-ID: <ZXG_pumoDp88qIuw@smile.fi.intel.com>
Date:   Thu, 7 Dec 2023 14:50:46 +0200
From:   Andy Shevchenko <andy@...nel.org>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Greg KH <greg@...ah.com>, Al Viro <viro@...iv.linux.org.uk>,
        tanzirh@...gle.com, Kees Cook <keescook@...omium.org>,
        linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org,
        Nick DeSaulniers <nnn@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>, llvm@...ts.linux.dev
Subject: Re: [PATCH] lib/string: shrink lib/string.i via IWYU

On Tue, Dec 05, 2023 at 02:14:55PM -0800, Nick Desaulniers wrote:
> On Tue, Dec 5, 2023 at 1:59 PM Greg KH <greg@...ah.com> wrote:

...

> For example, lib/math/int_log.c includes asm/bug.h.  Is that a case
> where lib/math/int_log.c should be #include 'ing linux/bug.h rather
> than asm/bug.h?

For the C-files it's fine to include linux/* versions of asm/* ones,
for the _headers_ I would prefer to be strictly minimalistic, because
of possible header dependency hell. If something is defined in asm/*
and some header wants to use that, it's better to include asm/*.

-- 
With Best Regards,
Andy Shevchenko