Re: [PATCH V14 1/7] PCI/ACPI: Guard ARM64-specific mcfg_quirks

[Bjorn Helgaas <helgaas@kernel.org>]

On Fri, Jun 17, 2022 at 03:43:24PM +0800, Huacai Chen wrote:
> Guard ARM64-specific quirks with CONFIG_ARM64 to avoid build errors,
> since mcfg_quirks will be shared by more than one architectures.
> 
> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

pci_mcfg.o is only built when CONFIG_ACPI_MCFG=y.  Where's the patch
that sets CONFIG_ACPI_MCFG=y for loongson?

I see that "PCI: loongson: Add ACPI init support" adds the #ifdef
CONFIG_LOONGARCH here, but AFAICS we still won't build it.

> ---
>  drivers/acpi/pci_mcfg.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/acpi/pci_mcfg.c b/drivers/acpi/pci_mcfg.c
> index 53cab975f612..63b98eae5e75 100644
> --- a/drivers/acpi/pci_mcfg.c
> +++ b/drivers/acpi/pci_mcfg.c
> @@ -41,6 +41,8 @@ struct mcfg_fixup {
>  static struct mcfg_fixup mcfg_quirks[] = {
>  /*	{ OEM_ID, OEM_TABLE_ID, REV, SEGMENT, BUS_RANGE, ops, cfgres }, */
>  
> +#ifdef CONFIG_ARM64
> +
>  #define AL_ECAM(table_id, rev, seg, ops) \
>  	{ "AMAZON", table_id, rev, seg, MCFG_BUS_ANY, ops }
>  
> @@ -169,6 +171,7 @@ static struct mcfg_fixup mcfg_quirks[] = {
>  	ALTRA_ECAM_QUIRK(1, 13),
>  	ALTRA_ECAM_QUIRK(1, 14),
>  	ALTRA_ECAM_QUIRK(1, 15),
> +#endif /* ARM64 */
>  };
>  
>  static char mcfg_oem_id[ACPI_OEM_ID_SIZE];
> -- 
> 2.27.0
>