linux-kernel - Re: [PATCH] scripts: coccinelle: boolinit: drop warnings on named constants

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Message-ID: <CAK7LNARH8-96wcZhMmgZCzxQCMQpQPaqmDHVSYbGkHnHhjQtCw@mail.gmail.com>
Date:   Sun, 6 Jan 2019 10:41:18 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Julia Lawall <Julia.Lawall@...6.fr>
Cc:     kernel-janitors@...r.kernel.org,
        Gilles Muller <Gilles.Muller@...6.fr>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        Michal Marek <michal.lkml@...kovi.net>, cocci@...teme.lip6.fr,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Subject: Re: [PATCH] scripts: coccinelle: boolinit: drop warnings on named constants

On Sat, Dec 29, 2018 at 10:14 PM Julia Lawall <Julia.Lawall@...6.fr> wrote:
>
> Coccinelle doesn't always have access to the values of named
> (#define) constants, and they may likely often be bound to true
> and false values anyway, resulting in false positives.  So stop
> warning about them.
>
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>

Applied to linux-kbuild. Thanks!


> ---
>  scripts/coccinelle/misc/boolinit.cocci |    5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/scripts/coccinelle/misc/boolinit.cocci b/scripts/coccinelle/misc/boolinit.cocci
> index b0584a3..aabb581 100644
> --- a/scripts/coccinelle/misc/boolinit.cocci
> +++ b/scripts/coccinelle/misc/boolinit.cocci
> @@ -136,9 +136,14 @@ position p1;
>  @r4 depends on !patch@
>  bool b;
>  position p2;
> +identifier i;
>  constant c != {0,1};
>  @@
> +(
> + b = i
> +|
>  *b@p2 = c
> +)
>
>  @script:python depends on org@
>  p << r1.p;
>


-- 
Best Regards
Masahiro Yamada