linux-hardening - Re: [PATCH v3] docs: deprecated.rst: Clarify open-coded arithmetic with literals

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Message-ID: <871r47g59t.fsf@meer.lwn.net>
Date:   Tue, 26 Oct 2021 09:44:14 -0600
From:   Jonathan Corbet <corbet@....net>
To:     Len Baker <len.baker@....com>, Kees Cook <keescook@...omium.org>
Cc:     Len Baker <len.baker@....com>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Joe Perches <joe@...ches.com>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH v3] docs: deprecated.rst: Clarify open-coded arithmetic
 with literals

Len Baker <len.baker@....com> writes:

> Although using literals for size calculation in allocator arguments may
> be harmless due to compiler warnings in case of overflows, it is better
> to refactor the code to avoid the use of open-coded arithmetic.
>
> So, clarify the preferred way in these cases.
>
> Suggested-by: Kees Cook <keescook@...omium.org>
> Signed-off-by: Len Baker <len.baker@....com>
> ---
> Changelog v1 -> v2
>  - Clarify the sentence by changing "keep <foo> out" with "avoid <foo>"
>    (Joe Perches).
>
> Changelog v2 -> v3
>  - Reword the sentence to comunicate better (Jonathan Corbet).
>
> The previous version can be found here [1].
>
> [1] https://lore.kernel.org/linux-hardening/20210829144716.2931-1-len.baker@gmx.com/

Applied, thanks.

jon