[PATCH v7 06/17] ARM64 / ACPI: Make PCI optional for ACPI on ARM64

[Catalin Marinas]

On Sun, Jan 18, 2015 at 09:29:56AM +0000, Graeme Gregory wrote:
> On Sun, Jan 18, 2015 at 02:46:35PM +0800, Hanjun Guo wrote:
> > On 2015年01月18日 14:31, Jon Masters wrote:
> > >Hi Folks,
> > >
> > >Sorry for top posting from bed. The mainstream servers will all likely do
> > > PCIe but there are several that may not. They should not be excluded. That
> > said,
> > >if we booted a previously built kernel on a system without an MCFG and
> > > got no ECAM/root then things would probably still work.
> > >
> > >I think it'll work out either way but for the record there is no requirement to do PCIe on ARM servers that conform to spec.
> > 
> > OK, Catalin already said that was not the main point of the
> > comments for this patch, I think the title and change log
> > of the patch is inconsistent with the code makes Catalin confused,
> > I will update them in next version.
> 
> Well what we are talking about is the presence of CONFIG_PCI=y which even
> in Jons case will be true as he wants to run the same kernel on both
> sets of hardware.
> 
> Now the architecture has PCI support I think its safe to remove the make
> PCI optional part of the patch as this should be handled runtime not
> compile time.

I agree, if we never see a reason to build a kernel image with
!PCI && ACPI, we can simplify this patch.

-- 
Catalin