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From: Arnd Bergmann <arnd@arndb.de>
To: Richard Weinberger <richard@nod.at>
Cc: Chen Gang <gang.chen.5i5j@gmail.com>,
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Subject: Re: [PATCH] drivers: Let several drivers depends on HAS_IOMEM for 'devm_ioremap_resource'
Date: Thu, 17 Jul 2014 13:24:46 +0200
Message-ID: <5581945.I7Fc5qufcE@wuerfel>
In-Reply-To: <53C7AC6F.1070001@nod.at>
References: <201407130545.23004.marex@denx.de> <8453588.VVyODXRso0@wuerfel> <53C7AC6F.1070001@nod.at>
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On Thursday 17 July 2014 12:58:55 Richard Weinberger wrote:
> > This is what I got upon trying earlier. I have not attempted to look into
> > why this is happening. Note this is on linux-next from yesterday,
> > not mainline as I incorrectly stated above.
> > 
> > In file included from ../arch/um/include/asm/fixmap.h:58:0,
> >                  from ../arch/um/include/asm/pgtable.h:11,
> >                  from ../include/linux/mm.h:51,
> >                  from ../kernel/uid16.c:6:
> > ../include/asm-generic/fixmap.h: In function 'fix_to_virt':
> > ../include/asm-generic/fixmap.h:31:2: error: size of unnamed array is negative
> >   BUILD_BUG_ON(idx >= __end_of_fixed_addresses);
> 
> So, this is next-20140716?
> I don't see the fixmap issue you're reporting, also not on the most recent next.

Sorry, nevermind. I had a workaround for a gcc-4.9 bug applied that
turned off optimization for uid16.c, which fixed the build for ARM for
me but happened to break x86 including uml.

Without that patch, I don't see this problem.

	Arnd