linux-kernel - Re: [PATCH v3 00/17] Cross-architecture definitions of relaxed MMIO accessors

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Date:	Mon, 29 Sep 2014 11:48:39 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Will Deacon <will.deacon@....com>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	Thierry Reding <thierry.reding@...il.com>,
	"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
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Subject: Re: [PATCH v3 00/17] Cross-architecture definitions of relaxed MMIO accessors

On Monday 29 September 2014 10:25:10 Will Deacon wrote:
> On Fri, Sep 26, 2014 at 10:36:13PM +0100, Arnd Bergmann wrote:
> > On Friday 26 September 2014 14:46:08 Russell King - ARM Linux wrote:
> > > 
> > > Obviously, this does nothing for the:
> > > 
> > > include/asm-generic/io.h:804:29: error: redefinition of 'virt_to_bus'
> > > include/asm-generic/io.h:809:21: error: redefinition of 'bus_to_virt'
> > > 
> > > errors which are also reported in Olof's build system.
> > > 
> > > Given how close we are to the merge window, I'd suggest this stuff gets
> > > reverted so that it can have a better period of testing, rather than
> > > stuffing it into -next at such a critical time.
> > 
> > Right, I've fixed these all up locally, but then found new warnings on
> > allmodconfig builds that I haven't been able to track down yet.
> > 
> > I've dropped everything from the asm-generic tree now, so we can get
> > a clean linux-next tree.
> 
> Did you actually see any failures due to the relaxed I/O stuff, or was this
> all in the unrelated rework of the asm-generic/io.h file? If the latter, it
> would be a pity to postpone the former series.
> 

I believe all the problems I've seen were because of Thierry's series,
I haven't tried separating the two again yet, which is something I'd
probably try today.

However, I saw a lot of different problems with the combined series
and I have a patch to fix them up here, will post that once I see no
new regressions.

	Arnd
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