linux-kernel - Re: [PATCH] ALSA/ASoC: replace ternary operator with min()

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Date:   Wed, 26 Oct 2022 07:28:26 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     Mark Brown <broonie@...nel.org>
Cc:     wangkailong@...i.cn, perex@...ex.cz, tiwai@...e.com,
        lgirdwood@...il.com, motolav@...il.com, cezary.rojewski@...el.com,
        mkumard@...dia.com, pierre-louis.bossart@...ux.intel.com,
        kai.vehmanen@...ux.intel.com, peter.ujfalusi@...ux.intel.com,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ALSA/ASoC: replace ternary operator with min()

On Tue, 25 Oct 2022 19:01:32 +0200,
Mark Brown wrote:
> 
> On Tue, Oct 25, 2022 at 10:56:11PM +0800, wangkailong@...i.cn wrote:
> > Fix the following coccicheck warning:
> > 
> > sound/soc/soc-ops.c:817: WARNING opportunity for min()
> 
> >  	kfree(uctl);
> > -	return err < 0 ? err : 0;
> > +	return min(err, 0);
> 
> I don't think this is a good warning, while I'm no big fan of the
> ternery operator the new code is less clear about the intent than the
> old code.

Agreed.  That use of ternery is a standard idiom.

If we have to eliminate the use of ternery inevitably, it'd be better
to introduce a new macro for clarity instead.


thanks,

Takashi