[PATCH 4/4] POWERPC: Merge 32 and 64-bit dma code

[Becky Bruce]

On Sep 9, 2008, at 5:13 PM, Christoph Hellwig wrote:

> On Wed, Sep 10, 2008 at 08:10:31AM +1000, Benjamin Herrenschmidt  
> wrote:
>>
>>> Yeah, the statement this time should be why do you keep _single :)
>>> It don't really mind which one we keep, but having both and both
>>> optional seems rather odd.
>>
>> It would be more logic to implement _single on top of _page.. as  
>> long as
>> we can still do sub-page mappings (needed on ppc64) which I think  
>> we can
>> using the offset / size args of _page...
>>
>> But that means more work changing the existing ppc64 backends :-) So
>> probably a worthwhile long term goal but what Becky did is ok for the
>> transition. I can look at fixing up the ppc64 ones to implement page
>> (and see if that causes any problem) some time after Plumbers conf.
>
> Ok.  But it would be good if we could add comments in the code for the
> to be done later issues we noted so it's harder to forget it.

Will do as I respin.

Thanks!
-Becky