linux-kernel - Re: [PATCH 3/5] Coccinelle: put_device: Merge four SmPL when constraints into one

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Date:   Mon, 13 May 2019 11:32:45 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     Markus Elfring <Markus.Elfring@....de>
cc:     Julia Lawall <julia.lawall@...6.fr>,
        Gilles Muller <Gilles.Muller@...6.fr>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        Wen Yang <wen.yang99@....com.cn>, cocci@...teme.lip6.fr,
        linux-kernel@...r.kernel.org, Yi Wang <wang.yi59@....com.cn>
Subject: Re: [PATCH 3/5] Coccinelle: put_device: Merge four SmPL when
 constraints into one



On Mon, 13 May 2019, Markus Elfring wrote:

> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Sun, 12 May 2019 18:32:46 +0200
>
> An assignment target was repeated in four SmPL when constraints.
> Combine the exclusion specifications into disjunctions for the semantic
> patch language so that this target is referenced only once there.

NACK.  This exceeds 80 characters and provides no readability benefit.

julia

>
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> ---
>  scripts/coccinelle/free/put_device.cocci | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/scripts/coccinelle/free/put_device.cocci b/scripts/coccinelle/free/put_device.cocci
> index 120921366e84..aae79c02c1e0 100644
> --- a/scripts/coccinelle/free/put_device.cocci
> +++ b/scripts/coccinelle/free/put_device.cocci
> @@ -23,10 +23,7 @@ if (id == NULL || ...) { ... return ...; }
>      when != platform_device_put(id)
>      when != of_dev_put(id)
>      when != if (id) { ... put_device(&id->dev) ... }
> -    when != e1 = (T)id
> -    when != e1 = (T)(&id->dev)
> -    when != e1 = get_device(&id->dev)
> -    when != e1 = (T1)platform_get_drvdata(id)
> +    when != e1 = \( (T) \( id \| (&id->dev) \) \| get_device(&id->dev) \| (T1)platform_get_drvdata(id) \)
>  (
>    return
>  (    id
> --
> 2.21.0
>
>