Re: [PATCH 5/6] arm64, defconfig: Enable PCI

From: Robert Richter
Date: Wed Sep 24 2014 - 12:26:54 EST

On 24.09.14 18:14:11, Arnd Bergmann wrote:
> On Wednesday 24 September 2014 17:37:47 Robert Richter wrote:
> > config PCI
> > bool "PCI support"
> > + default y
> > help
> > This feature enables support for PCIe bus system. If you say Y
> > here, the kernel will include drivers and infrastructure code
> > to support PCIe bus devices.
> >
> > +config PCI_MSI
> > + def_bool PCI
> > +
> > config PCI_DOMAINS
> > def_bool PCI
> There is already a PCI_MSI symbol in drivers/pci/Kconfig. Just select that
> from the PCI symbol above rather than defining a second one.

The intention is not to have a second definition, instead this should
enable the default value just for arm64. Thus I put it to
arch/arm64/Kconfig. Otherwise it would be enabled per default on all

We could have used select in config ARM64, but I tried to avoid using
select due to the dependency issue and instead implement this with
default-y/depends-on. Doing so it can be manually disabled too.

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