[PATCH 1/3] b43: replace DMA translation workarounds with just a one, commented

[Rafał Miłecki]

2011/7/21 Michael Büsch <m at bues.ch>:
> On Thu, 21 Jul 2011 19:34:40 +0000
> Michael Büsch <m at bues.ch> wrote:
>> For historical reasons there is unused 64bit dma code in b43legacy. I'm not sure whether it would even work. Probably not. Larry's fixes were most likely not ported over.
>
> So I looked closer at the code now.
> The b43legacy 64bit DMA code certainly is dead, unused and broken code.
> One could remove it, if someone really cares (I don't).
>
> However, there is another issue.
> b43legacy calls ssb_dma_translation() (also on 30/32bit code) for every descriptor.
> As our ssb patch adds a SSB register read to ssb_dma_translation(), this adds an unacceptable
> amount of overhead. This needs to be addressed before merging the ssb patch.

Good catch, thanks.

As I can see, John has already took my patch. Some time has passed
without anyone noticing real problems, so I'm feeling myself the one
to blame.

Don't you mind if I prepare improvement (AKA fix) for b43legacy and
just post it today? Would that be acceptable? Or should we really
revert my latest patches? Is that a really better solution?

-- 
Rafał