Re: [PATCH] ALSA: hda: Use imply for suggesting CONFIG_SERIAL_MULTI_INSTANTIATE

[Richard Fitzgerald <rf@opensource.cirrus.com>]

On 21/06/2024 08:39, Takashi Iwai wrote:
> The recent fix introduced a reverse selection of
> CONFIG_SERIAL_MULTI_INSTANTIATE, but its condition isn't always met.
> Use a weak reverse selection to suggest the config for avoiding such
> inconsistencies, instead.
> 
> Fixes: 9b1effff19cd ("ALSA: hda: cs35l56: Select SERIAL_MULTI_INSTANTIATE")
> Reported-by: kernel test robot <lkp@intel.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202406210732.ozgk8IMK-lkp@intel.com/
> Closes: https://lore.kernel.org/oe-kbuild-all/202406211244.oLhoF3My-lkp@intel.com/
> Signed-off-by: Takashi Iwai <tiwai@suse.de>
> ---
>   sound/pci/hda/Kconfig | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig
> index e59df40a0007..a3cf0725fc43 100644
> --- a/sound/pci/hda/Kconfig
> +++ b/sound/pci/hda/Kconfig
> @@ -162,7 +162,7 @@ config SND_HDA_SCODEC_CS35L56_I2C
>   	depends on ACPI || COMPILE_TEST
>   	depends on SND_SOC
>   	select FW_CS_DSP
> -	select SERIAL_MULTI_INSTANTIATE
> +	imply SERIAL_MULTI_INSTANTIATE
>   	select SND_HDA_GENERIC
>   	select SND_SOC_CS35L56_SHARED
>   	select SND_HDA_SCODEC_CS35L56
> @@ -179,7 +179,7 @@ config SND_HDA_SCODEC_CS35L56_SPI
>   	depends on ACPI || COMPILE_TEST
>   	depends on SND_SOC
>   	select FW_CS_DSP
> -	select SERIAL_MULTI_INSTANTIATE
> +	imply SERIAL_MULTI_INSTANTIATE
>   	select SND_HDA_GENERIC
>   	select SND_SOC_CS35L56_SHARED
>   	select SND_HDA_SCODEC_CS35L56
Sorry about that. Thanks for fixing.
Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>

(Though I think this points at a bug in serial-multi-instantiate
dependencies. When SPI support was added it was made mandatory
to have both I2C AND SPI. But you shouldn't need to build in a
subsystem if you don't have any devices of that type.)