[PATCH,RFC] PCI: deal with device incorrectly reporting I/O decoding being enabled

[Russell King - ARM Linux]

On Sat, Nov 07, 2009 at 08:03:05AM -0700, Matthew Wilcox wrote:
> I'm OK with this ... it might provoke bugs in some _other_ piece of hardware,
> but that seems pretty unlikely.

Please remember that some ARM hardware only has the capability to read
and write full 32-bit quantities of configuration space, which means
writing the control register can result in the status register being
written as well.

That shouldn't be a problem, but is merely something else to consider
which isn't obvious.