linux-kernel - Re: [RFC PATCH] coccinelle: misc: add uninitialized

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Message-ID: <alpine.DEB.2.22.394.2008121127120.2572@hadrien>
Date:   Wed, 12 Aug 2020 11:27:45 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...ia.fr>
To:     Markus Elfring <Markus.Elfring@....de>
cc:     Denis Efremov <efremov@...ux.com>,
        Coccinelle <cocci@...teme.lip6.fr>,
        Gilles Muller <Gilles.Muller@...6.fr>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Kees Cook <keescook@...omium.org>
Subject: Re: [RFC PATCH] coccinelle: misc: add uninitialized_var.cocci
 script



On Wed, 12 Aug 2020, Markus Elfring wrote:

> > +@r@
> > +identifier var;
> > +type T;
> > +position p;
> > +@@
> > +
> > +(
> > +* T var@p = var;
> > +|
> > +* T var@p = *(&(var));
>
> I suggest to simplify such code for the semantic patch language a bit.
> Can an other variant be more succinct for the application of a SmPL disjunction?
>
> +*T var@p = \( var \| *(&(var)) \);

It's fine as is.

julia