Re: [PATCH v2 1/4] pci: OF: Fix the conversion of IO ranges into IO resources.

From: Liviu Dudau
Date: Thu Feb 27 2014 - 08:46:07 EST


On Thu, Feb 27, 2014 at 01:20:54PM +0000, Arnd Bergmann wrote:
> On Thursday 27 February 2014 13:06:39 Liviu Dudau wrote:
> > + res->flags = range->flags;
> > + if (res->flags & IORESOURCE_IO) {
> > + unsigned long port;
> > + port = pci_address_to_pio(range->pci_addr);
> > + if (port == (unsigned long)-1) {
> > + res->start = (resource_size_t)OF_BAD_ADDR;
> > + res->end = (resource_size_t)OF_BAD_ADDR;
> > + return;
> > + }
> >
>
> I think this conflicts with the way that pci_address_to_pio() is
> defined on powerpc, where it expects a CPU address as the input,
> not a PCI i/o address.

And you are right, maybe what I need is to fix weak version of the
function, as that one cannot cope with cpu addresses. But I think
the idea still stands.

Thanks for reviewing this version as well!

Liviu

>
> Arnd
>
>

--
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