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Cc:     linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
        "Gustavo A. R. Silva" <garsilva@embeddedor.com>,
        Kees Cook <keescook@chromium.org>
Subject: Re: [PATCH v2] coccinelle: misc: add array_size_dup script to detect
 missed overflow checks
From:   Markus Elfring <Markus.Elfring@web.de>
To:     Denis Efremov <efremov@linux.com>,
        Coccinelle <cocci@systeme.lip6.fr>,
        Gilles Muller <Gilles.Muller@lip6.fr>,
        Julia Lawall <julia.lawall@lip6.fr>,
        Masahiro Yamada <yamada.masahiro@socionext.com>,
        Michal Marek <michal.lkml@markovi.net>,
        Nicolas Palix <nicolas.palix@imag.fr>
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Date:   Thu, 18 Jun 2020 13:34:52 +0200
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Why did you repeat a typo from the previous patch subject?


> Changes in v2:
=E2=80=A6
> - assignment operator used

Did you add just a metavariable for this implementation detail?


=E2=80=A6
> +expression subE1 <=3D as.E1;
> +expression subE2 <=3D as.E2;
> +expression as.E1, as.E2, E3;

How do you think about to use the following SmPL code variant?

expression subE1 <=3D as.E1, subE2 <=3D as.E2, as.E1, as.E2, E3;


> +      when !=3D \(&E1\|&E2\|&subE1\|&subE2\)

I suggest to move the ampersand before the disjunction in such
SmPL code exclusion specifications.

+      when !=3D & \(E1 \| E2 \| subE1 \| subE2\)


> +coccilib.report.print_report(p2[0],
> +f"WARNING: array_size is already used (line {p1[0].line}) to compute \
> +the same size")

I would prefer an other code formatting at such places.

+coccilib.report.print_report(p2[0],
+                             f"WARNING: array_size is already used (line =
{p1[0].line}) to compute the same size.")


Regards,
Markus