linux-kernel - Re: [PATCH v2] coccinelle: semantic patch to check for inappropriate do

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]

Date:   Thu, 9 Jan 2020 11:35:33 +0100
From:   Markus Elfring <Markus.Elfring@....de>
To:     Wen Yang <wenyang@...ux.alibaba.com>, cocci@...teme.lip6.fr,
        kernel-janitors@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Gilles Muller <Gilles.Muller@...6.fr>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Julia Lawall <Julia.Lawall@...6.fr>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Matthias Männich <maennich@...gle.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH v2] coccinelle: semantic patch to check for inappropriate
 do_div() calls

> - fix 'WARNING:' twice in each case.

A duplicate text was removed.

> +@...ipt:python depends on org@
> +p << r.p;
> +ul << r.ul;

I interpret this variable assignment in the way that it will work only
if the corresponding branch of the SmPL disjunction was actually matched
by the referenced SmPL rule.
Thus I suggest now to split the source code search pattern into
four separate rules.

> +warnings = construct_warnings(ul, "div64_ul")

* Can two identifiers be nicer without an “s”?

* Would it be sufficient to pass a shorter identification
  (without the prefix “div64_”)?

Regards,
Markus