linux-kernel - Re: [PATCH 2/4] coccinelle: platform_get

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Date:   Tue, 19 Nov 2019 22:36:51 +0100 (CET)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     Markus Elfring <Markus.Elfring@....de>
cc:     Julia Lawall <julia.lawall@...6.fr>, cocci@...teme.lip6.fr,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
        Gilles Muller <Gilles.Muller@...6.fr>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nicolas Palix <nicolas.palix@...g.fr>
Subject: Re: [PATCH 2/4] coccinelle: platform_get_irq: handle 2-statement
 branches



On Tue, 19 Nov 2019, Markus Elfring wrote:

> > From: Masahiro Yamada <yamada.masahiro@...ionext.com>
>
> I wonder about this information.
> Would you like to use the tag “Suggested-by” instead?

Sorry, I seem to have done something quite wrong on this patch.  I will
fix it.

>
>
> …
> > +++ b/scripts/coccinelle/api/platform_get_irq.cocci
> > @@ -31,6 +31,25 @@ if ( \( ret < 0 \| ret <= 0 \) )
> …
> > +ret =
> > +(
> > +platform_get_irq
> > +|
> > +platform_get_irq_byname
> > +)(E, ...);
> > +
> > +if ( \( ret < 0 \| ret <= 0 \) )
> > +-{
> > +-dev_err(...);
> > +S
> > +-}
>
> How do you think about to use the following SmPL code variant?

And the benefit is what?

julia

> + ret =
> +(platform_get_irq
> +|platform_get_irq_byname
> +)(E, ...);
> +
> + if ( \( ret < 0 \| ret <= 0 \) )
> +-{
> +-dev_err(...);
> + S
> +-}
>
> Regards,
> Markus
>