Re: [PATCH 6/9] PCI: consolidate PCI config entry in drivers/pci

Masahiro Yamada
2018-10-19T12:58:46Z

On Fri, Oct 19, 2018 at 9:23 PM Russell King - ARM Linux
<linux@armlinux.org.uk> wrote:

> > index a68b34183107..b185794549be 100644
> > --- a/arch/arm/mach-pxa/Kconfig
> > +++ b/arch/arm/mach-pxa/Kconfig
> > @@ -125,7 +125,7 @@ config MACH_ARMCORE
> > bool "CompuLab CM-X255/CM-X270 modules"
> > select ARCH_HAS_DMA_SET_COHERENT_MASK if PCI
> > select IWMMXT
> > - select MIGHT_HAVE_PCI
> > + select HAVE_PCI
> > select NEED_MACH_IO_H if PCI
> > select PXA25x
> > select PXA27x
>
> This is wrong. "MIGHT_HAVE_PCI" is _not_ the same as "HAVE_PCI" - we
> have a bunch of platforms that mandatorily have PCI and these select
> PCI directly. "MIGHT_HAVE_PCI" controls the _visibility_ of the PCI
> menu option, but does not prevent it being selected. Your patch will
> cause Kconfig to complain for those which mandatorily have PCI but
> do not set HAVE_PCI.

Good catch!
But, adding a bunch of 'select HAVE_PCI' along with 'select PCI' is ugly.

Do you have any suggestion?

How about letting CONFIG_ARM to select HAVE_PCI ?

--
Best Regards
Masahiro Yamada