Re: usb: dwc2: regression on MyBook Live Duo / Canyonlands since 4.3.0-rc4

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On Thursday 12 May 2016 22:39:36 Christian Lamparter wrote:
> On Thursday, May 12, 2016 11:40:28 AM John Youn wrote:
> > On 5/12/2016 6:30 AM, Christian Lamparter wrote:
> > > On Thursday, May 12, 2016 01:55:44 PM Arnd Bergmann wrote:
> > >>
> > >> If I recall correctly, the rough consensus was to go with your longer
> > >> patch in the future (fixed up for the comments that BenH and
> > >> I sent), and I'd suggest basing it on top of a fixed version of
> > >> my patch.
> > > Well, but it comes with the "overhead"! So this was just as I said:
> > > "Let's look at it and see if it's any good"... And I think it isn't
> > > since the usb/host/ehci people also opted for #ifdef CONFIG_BIG_ENDIAN
> > > archs etc...
> > 
> > I slightly prefer the more general patch for future kernel versions.
> > The overhead will probably be negligible, but we can perform some
> > testing to make sure.
> > 
> > Can you resubmit with all gathered feedback?
> Yes I think I can do that. But I would really like to get the
> regression out of the way. So for that: I back Arnd's patch.
> It explains the problem much better and doesn't kill MIPS 
> like the revert I was doing in my initial post to the MLs.
> Also, another bonus: his patch is suited to port to stable.
> 
> The auto-detection approach is not that easy to get right,
> given all the stuff that's going on with BE8, LE4, ... So
> can we have your "blessing" for Arnd's patch for now? since
> that way, I can base my patch on top of his work about the
> issues of endiannes? (Just say: ACK  )
> 
> Arnd: do you have a version with the #ifdef lower/uppercase
> fix? Or should I give it a try (and fail in a different way  )

I've already fixed it up locally, will send the latest version
so it's out there, whether Felipe takes it or not.

	Arnd




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