linux-kernel - Re: [PATCH 21/30] mm: Use kstrtobool() instead of strtobool()

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Message-ID: <202211011543.20ACBF9@keescook>
Date:   Tue, 1 Nov 2022 15:47:20 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     Pasha Tatashin <pasha.tatashin@...een.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-mm@...ck.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH 21/30] mm: Use kstrtobool() instead of strtobool()

On Tue, Nov 01, 2022 at 10:14:09PM +0100, Christophe JAILLET wrote:
> strtobool() is the same as kstrtobool().
> However, the latter is more used within the kernel.
> 
> In order to remove strtobool() and slightly simplify kstrtox.h, switch to
> the other function name.
> 
> While at it, include the corresponding header file (<linux/kstrtox.h>)
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
> This patch is part of a serie that axes all usages of strtobool().
> Each patch can be applied independently from the other ones.
> 
> The last patch of the serie removes the definition of strtobool().
> 
> You may not be in copy of the cover letter. So, if needed, it is available
> at [1].
> 
> [1]: https://lore.kernel.org/all/cover.1667336095.git.christophe.jaillet@wanadoo.fr/

This seems in keeping with the removal of the simple_*str*() helpers:
https://docs.kernel.org/process/deprecated.html#simple-strtol-simple-strtoll-simple-strtoul-simple-strtoull

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook