linux-kernel - Re: [PATCH v6] coccinelle: tests: unsigned value cannot be lesser than zero

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Date:	Tue, 05 Jan 2016 15:29:27 +0100
From:	Andrzej Hajda <a.hajda@...sung.com>
To:	Julia Lawall <julia.lawall@...6.fr>
Cc:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Gilles Muller <Gilles.Muller@...6.fr>,
	Nicolas Palix <nicolas.palix@...g.fr>,
	Michal Marek <mmarek@...e.com>,
	open list <linux-kernel@...r.kernel.org>,
	"moderated list:COCCINELLE/Semantic Patches (SmPL)" 
	<cocci@...teme.lip6.fr>
Subject: Re: [PATCH v6] coccinelle: tests: unsigned value cannot be lesser than
 zero

On 01/05/2016 03:17 PM, Julia Lawall wrote:
>> +@...ipt:python depends on org@
>> +p << r_cmp.p;
>> +e << r.e = "";
>> +@@
>> +
>> +msg = "WARNING: Unsigned expression compared with zero: %s" % (e)
>> +coccilib.org.print_todo(p[0], msg)
>> +
>> +@...ipt:python depends on report@
>> +p << r_cmp.p;
>> +e << r.e = "";
>> +@@
>> +
>> +msg = "WARNING: Unsigned expression compared with zero: %s" % (e)
>> +if e:
>> +    coccilib.report.print_report(p[0], msg)
> Is it intentional that these don't do the same thing?  The report case has
> an if on e, while the org case does not.  If you don't want a report when e
> doesn't have a value, you could just remove the = "" from the declaration of
> e.  That is to give a default value of e, to allow the rule to be executed
> when e doesn't have a value.
>
> julia
>
>
No, I forgot to adjust it. I will fix it then, thanks.

Regards
Andrzej
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