Re: [PATCH] ASoC: skl: always select SND_SOC_HDAC_HDA

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On 11/2/18, Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> wrote:
>
> On 11/2/18 6:24 AM, Arnd Bergmann wrote:
>> The skylake sound support is written to work both with or without
>> CONFIG_SND_SOC_HDAC_HDA, and uses an #ifdef to decide whether it should
>> link against that. However, this fails with SND_SOC_ALL_CODECS=m or
>> SND_SOC_INTEL_SKL_HDA_DSP_GENERIC_MACH=m when the Skylake support itself
>> is built-in, with this link error:
>>
>> sound/soc/intel/skylake/skl.o: In function `skl_probe':
>> skl.c:(.text+0x56c): undefined reference to `snd_soc_hdac_hda_get_ops'
>>
>> Using an explicit 'select' here simplifies the logic and prevents
>> it from happening, at the cost of always including the compile
>> time dependency.
>
> Thanks Arnd for the report. I don't quite agree with the proposal, this
> should be similar to HDAC_HDMI which is not selected by default, and
> there's no reason to force the support for HDAudio when the vast
> majority of Skylake+ devices which enable this driver don't have any
> HDaudio codec.

Sure, feel free to treat this patch as a bug report and come up with
a better fix.

> Also the code is skl.c is already conditional, so this function should
> not be required.
>
> Do you have a config that fails, I'd like to look at this further.

https://pastebin.com/4iYPGxkU is what first triggered this.

      Arnd
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