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Message-ID: <51d951b7-f31a-35e4-589b-a538e3a030ba@linux.intel.com>
Date:   Fri, 29 May 2020 08:55:46 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Mark Brown <broonie@...nel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
Subject: Re: linux-next: build warning after merge of the sound-asoc tree



On 5/29/20 8:30 AM, Mark Brown wrote:
> On Thu, May 28, 2020 at 01:57:17PM +1000, Stephen Rothwell wrote:
>> Hi all,
>>
>> After merging the sound-asoc tree, today's linux-next build (x86_64
>> allmodconfig) produced this warning:
>>
>> sound/soc/sof/intel/byt.c:464:12: warning: 'byt_remove' defined but not used [-Wunused-function]
>>    464 | static int byt_remove(struct snd_sof_dev *sdev)
>>        |            ^~~~~~~~~~
>> sound/soc/sof/intel/byt.c:454:12: warning: 'byt_resume' defined but not used [-Wunused-function]
>>    454 | static int byt_resume(struct snd_sof_dev *sdev)
>>        |            ^~~~~~~~~~
>> sound/soc/sof/intel/byt.c:447:12: warning: 'byt_suspend' defined but not used [-Wunused-function]
>>    447 | static int byt_suspend(struct snd_sof_dev *sdev, u32 target_state)
>>        |            ^~~~~~~~~~~
>>
>> Introduced by commits
>>
>>    ddcccd543f5d ("ASoC: SOF: Intel: byt: Add PM callbacks")
>>    c691f0c6e267 ("ASoC: SOF: Intel: BYT: add .remove op")
> 
> Ranjani, Pierre?

Humm, I am not sure what happened here or why kbuild didn't report this 
earlier. This was added in

ddcccd543f5dbd ('ASoC: SOF: Intel: byt: Add PM callbacks')

And I do see them used in the code:

sound/soc/sof/intel/byt.c

	/* PM */
	.suspend = byt_suspend,
	.resume = byt_resume,

Will run a check and fix ASAP, my guess it's a Kconfig issue or the 
functions not protected by the usual SND_SOC_SOF_BAYTRAIL.

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