Thread (32 messages) 32 messages, 6 authors, 2016-05-19

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

From: Arnd Bergmann <arnd@arndb.de>
Date: 2016-05-12 20:52:00
Also in: linux-mips, lkml

On Thursday 12 May 2016 22:39:36 Christian Lamparter wrote:
On Thursday, May 12, 2016 11:40:28 AM John Youn wrote:
quoted
On 5/12/2016 6:30 AM, Christian Lamparter wrote:
quoted
On Thursday, May 12, 2016 01:55:44 PM Arnd Bergmann wrote:
quoted
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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