[PATCH] PPC: PCI: Fix pcibios_io_space_offset() so it works for 32-bit ptr/64-bit rsrcs

[Bjorn Helgaas]

On Mon, Jun 18, 2012 at 2:39 PM, Benjamin Herrenschmidt
<benh at kernel.crashing.org> wrote:
> On Mon, 2012-06-18 at 09:23 -0600, Bjorn Helgaas wrote:
>> Ooh, sorry about that.  Who's going to push this fix?  I don't see it
>> in Linus' tree yet.  If you want me to, please forward me the original
>> patch.
>
> I want to double check something. We are still printing something wrong
> in the kernel log, so it looks like we have some incorrect carry in some
> arithmetic happening somewhere.

Probably not related to whatever you're seeing, but just FYI, I think
the core has a sign-extension bug related to P2P bridge I/O windows:

http://marc.info/?l=linux-pci&m=134023801524895&w=2