linux-kernel - Re: [PATCH] ALSA: line6: constify snd_kcontrol

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Message-ID: <s5hh91tsq81.wl-tiwai@suse.de>
Date:   Wed, 12 Apr 2017 15:35:58 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     "Bhumika Goyal" <bhumirks@...il.com>
Cc:     <alsa-devel@...a-project.org>, <julia.lawall@...6.fr>,
        <perex@...ex.cz>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ALSA: line6: constify snd_kcontrol_new structures

On Wed, 12 Apr 2017 15:10:47 +0200,
Bhumika Goyal wrote:
> 
> Declare snd_kcontrol_new strcutures as const as they are only passed as
> an argument to the function snd_ctl_new1. This argument is of type const,
> so snd_kcontrol_new structures having this property can be made const too.
> Done using Coccinelle:
> 
> @r disable optional_qualifier@
> identifier x;
> position p;
> @@
> static struct snd_kcontrol_new x@......};
> 
> @ok@
> identifier r.x;
> position p;
> @@
> snd_ctl_new1(&x@p,...)
> 
> @bad@
> position p != {r.p,ok.p};
> identifier r.x;
> @@
> x@p
> 
> @depends on !bad disable optional_qualifier@
> identifier r.x;
> @@
> +const
> struct snd_kcontrol_new x;
> 
> Signed-off-by: Bhumika Goyal <bhumirks@...il.com>

Applied, thanks.


Takashi