linux-kernel - Re: [PATCH] coccinelle: assign signed result to unsigned variable

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Date:	Sat, 26 Sep 2015 11:45:03 +0200 (CEST)
From:	Julia Lawall <julia.lawall@...6.fr>
To:	SF Markus Elfring <elfring@...rs.sourceforge.net>
cc:	Julia Lawall <julia.lawall@...6.fr>,
	Andrzej Hajda <a.hajda@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Gilles Muller <Gilles.Muller@...6.fr>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Michal Marek <mmarek@...e.com>,
	Nicolas Palix <nicolas.palix@...g.fr>,
	kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
	cocci@...teme.lip6.fr
Subject: Re: [PATCH] coccinelle: assign signed result to unsigned variable



On Sat, 26 Sep 2015, SF Markus Elfring wrote:

> > To collect function calls that have a return value of a given type t,
> > it should be sufficient to do the following:
> >
> > @@
> > t e;
> > identifier f;
> > @@
> >
> > f(...)@e
>
> Is such a SmPL approach better than a variant like the following?
>
> @find_function@
> type t;
> identifier f;
> @@
>  t f(...)
>  { ... }

Your approach finds a function definition.  My approach works on the call
directly, using whatever type information is available.

julia
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