linux-kernel - Re: [alsa-devel] [PATCH] ASoC: cht_bsw_max98090_ti: Remove unused function cht_get_codec

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Message-ID: <20170523193239.GP141096@google.com>
Date:   Tue, 23 May 2017 12:32:39 -0700
From:   Matthias Kaehlcke <mka@...omium.org>
To:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Yang A Fang <yang.a.fang@...el.com>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        Douglas Anderson <dianders@...omium.org>
Subject: Re: [alsa-devel] [PATCH] ASoC: cht_bsw_max98090_ti: Remove unused
 function cht_get_codec_dai()

Hi Pierre-Louis,

El Tue, May 23, 2017 at 12:25:17PM -0700 Pierre-Louis Bossart ha dit:

> On 5/23/17 12:05 PM, Matthias Kaehlcke wrote:
> >Looks like the function has never been used since it was added by commit
> >17119a465706 ("ASoC: Intel: Add Cherrytrail & Braswell machine driver
> >cht_bsw_max98090_ti"). Removing it fixes the following warning when
> >building with clang:
> >
> >sound/soc/intel/boards/cht_bsw_max98090_ti.c:42:35: error: unused
> >    function 'cht_get_codec_dai' [-Werror,-Wunused-function]
> 
> Fine but it'll have to be re-added when I finally find the time to
> support Baytrail with this driver.

If you have plans to add the code in a nearish future it is probably
not worth to do the removal, unless the maintainers think otherwise.

> >Signed-off-by: Matthias Kaehlcke <mka@...omium.org>
> >---
> > sound/soc/intel/boards/cht_bsw_max98090_ti.c | 12 ------------
> > 1 file changed, 12 deletions(-)
> >
> >diff --git a/sound/soc/intel/boards/cht_bsw_max98090_ti.c b/sound/soc/intel/boards/cht_bsw_max98090_ti.c
> >index 742bc0d4e681..20755ecc7f9e 100644
> >--- a/sound/soc/intel/boards/cht_bsw_max98090_ti.c
> >+++ b/sound/soc/intel/boards/cht_bsw_max98090_ti.c
> >@@ -39,18 +39,6 @@ struct cht_mc_private {
> > 	bool ts3a227e_present;
> > };
> >
> >-static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
> >-{
> >-	struct snd_soc_pcm_runtime *rtd;
> >-
> >-	list_for_each_entry(rtd, &card->rtd_list, list) {
> >-		if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
> >-			     strlen(CHT_CODEC_DAI)))
> >-			return rtd->codec_dai;
> >-	}
> >-	return NULL;
> >-}
> >-
> > static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
> > 	SND_SOC_DAPM_HP("Headphone", NULL),
> > 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
> >
>