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

[Jason Gunthorpe]

On Thu, Feb 27, 2014 at 01:06:39PM +0000, Liviu Dudau wrote:
> +	if (res->flags & IORESOURCE_IO) {
> +		unsigned long port;
> +		port = pci_address_to_pio(range->pci_addr);

This looks very suspicious, pci_addr is not unique across all domains,
so there is no way to convert from a pci_addr to the virtual IO
address without knowing the domain number as well.

I would like to see it be:
  port = pci_address_to_pio(range->cpu_addr);

cpu_addr is unique across all domains.

Looking at the microblaze and PPC versions I think the above version
is actually correct (assuming io_base_phys is the CPU address of the
IO window)

Jason