[PATCH/RFC] powerpc: Fix mmap of PCI resource with hack for X

[David Miller]

From: Benjamin Herrenschmidt <benh at kernel.crashing.org>
Date: Tue, 14 Nov 2006 12:59:54 +1100

> If I "fix" the kernel to do the right thing, that is pass BAR values in
> devices and expect BAR values in mmap, then I will break existing X
> setups on machines where PCI is not mapped 1:1 (that is mostly CHRP
> machines).
> 
> The problem I'm fixing in this patch is that while we were providing the
> hacked up value in "devices", we were expecting the BAR value in mmap,
> and there are apps expecting us to be consistent between the two, thus
> the breakage.

Ok, I don't see much alternatives for you then.  I have no real
objections to your patch.