Re: [PATCH] ALSA: hda/ca0132: need CONFIG_PCI for compile

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On Tue, 05 Feb 2019 07:57:22 +0100,
Kuninori Morimoto wrote:
> 
> 
> From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
> 
> commit d99501b8575d ("ALSA: hda/ca0132 - Call pci_iounmap() instead of
> iounmap()") started to use pci_iounmap() on ca0132, but then, it should
> be depends on CONFIG_PCI.
> Otherwise, non CONFIG_PCI compile will be failed, like below
> 
> 	linux/sound/pci/hda/patch_ca0132.c: In function 'ca0132_free':
> 	linux/sound/pci/hda/patch_ca0132.c:8455:3: error: implicit\
> 		declaration of function 'pci_iounmap'; did you mean\
> 		'pcim_iounmap'? [-Werror=implicit-function-declaration]
> 	pci_iounmap(codec->bus->pci, spec->mem_base);
> 	^~~~~~~~~~~

No, the driver doesn't depend on PCI, it can be built and work fine
without it, too.  The only problem is the broken pci_iounmap()
implementation in sh.

We have added CONFIG_PCI check but obviously this isn't effective.
It needs to be an explicit #ifdef, instead.  Will fix it.

Ideally it should be fixed in arch/sh side.  I tried to fix it, but it
turned out to be much deeper than I thought, so I gave up scratching
it for now.


thanks,

Takashi

> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
> ---
>  sound/pci/hda/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig
> index 4235907..03af159 100644
> --- a/sound/pci/hda/Kconfig
> +++ b/sound/pci/hda/Kconfig
> @@ -171,6 +171,7 @@ comment "Set to Y if you want auto-loading the codec driver"
>  
>  config SND_HDA_CODEC_CA0132
>  	tristate "Build Creative CA0132 codec support"
> +	depends on CONFIG_PCI
>  	help
>  	  Say Y or M here to include Creative CA0132 codec support in
>  	  snd-hda-intel driver.
> -- 
> 2.7.4
> 
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