linux-kernel - Re: [PATCH 3/4] agents: add coding style documentation and rules

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <202507272219.4BF02B6@keescook>
Date: Sun, 27 Jul 2025 22:21:40 -0700
From: Kees Cook <kees@...nel.org>
To: Sasha Levin <sashal@...nel.org>
Cc: corbet@....net, linux-doc@...r.kernel.org, workflows@...r.kernel.org,
	josh@...htriplett.org, konstantin@...uxfoundation.org,
	linux-kernel@...r.kernel.org, rostedt@...dmis.org
Subject: Re: [PATCH 3/4] agents: add coding style documentation and rules

On Mon, Jul 28, 2025 at 01:10:25AM -0400, Sasha Levin wrote:
> On Sun, Jul 27, 2025 at 07:40:36PM -0700, Kees Cook wrote:
> > On Sun, Jul 27, 2025 at 03:58:01PM -0400, Sasha Levin wrote:
> > > +**80 character line limit**
> > > +  The preferred limit on the length of a single line is 80 columns.
>
> Hrm, it is?
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/coding-style.rst#n104
> claims:
> 
> 	The preferred limit on the length of a single line is 80 columns.
> 
> 	Statements longer than 80 columns should be broken into sensible chunks,
> 	unless exceeding 80 columns significantly increases readability and does
> 	not hide information.

That's true, it's not called out well enough. 80 is "preferred
limit" but not the hard limit, which is 100. See commit bdc48fa11e46
("checkpatch/coding-style: deprecate 80-column warning")

-Kees

-- 
Kees Cook