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SubjectRe: sound/pci/hda/patch_hdmi.c:1086: undefined reference to `snd_hda_get_num_devices'
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On 2/6/20 7:48 AM, Takashi Iwai wrote:
> On Thu, 06 Feb 2020 14:40:17 +0100,
> Kai Vehmanen wrote:
>>
>> Hey,
>>
>> On Thu, 6 Feb 2020, kbuild test robot wrote:
>>
>>> ld: sound/pci/hda/patch_hdmi.o: in function `intel_not_share_assigned_cvt':
>>>>> sound/pci/hda/patch_hdmi.c:1086: undefined reference to `snd_hda_get_num_devices'
>>>>> ld: sound/pci/hda/patch_hdmi.c:1098: undefined reference to `snd_hda_get_dev_select'
>>>>> ld: sound/pci/hda/patch_hdmi.c:1099: undefined reference to `snd_hda_set_dev_select'
>>
>> hmm, this seems similar case as the previous one today w.r.t
>> hda_dsp_common.c:76. Patch_hdmi.c is built-in while snd-hda is a module.
>> Maybe we need to just drop the dependency from the ASoC board files to
>> SND_HDA_CODEC_HDMI. We don't have one for SND_HDA_CODEC either.
>
> The problem is that SOF tries to do reverse-select the legacy HD-audio
> codec, but it doesn't work in general. Or it must be done very
> carefully.
>
> If something gets selected, all dependencies have to be
> reverse-selected, too. But the legacy HDA is built up in a way of
> standard top-down selection (i.e. SND_HDA_CODEC_* depends on SND_HDA,
> not other way round).

It's the same issue as the other one reported earlier, and adding the
dependency on SOF_HDA makes the unmet dependency go away.

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