From: Arnd Bergmann <arnd@arndb.de>
To: Richard Weinberger <richard@nod.at>
Cc: Chen Gang <gang.chen.5i5j@gmail.com>, Guenter Roeck <linux@roeck-us.net>,
        Lars-Peter Clausen <lars@metafoo.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        dmitry.torokhov@gmail.com, linux-iio@vger.kernel.org,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>, teg@jklm.no,
        Thierry Reding <thierry.reding@gmail.com>,
        Lennox Wu <lennox.wu@gmail.com>, Marek Vasut <marex@denx.de>,
        Liqin Chen <liqin.linux@gmail.com>, msalter@redhat.com,
        linux-pwm@vger.kernel.org, devel@driverdev.osuosl.org,
        linux-watchdog@vger.kernel.org, linux-input@vger.kernel.org,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        knaack.h@gmx.de, Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Mischa.Jonker@synopsys.com, jic23@kernel.org,
        Geert Uytterhoeven <geert@linux-m68k.org>
Subject: Re: [PATCH] drivers: Let several drivers depends on HAS_IOMEM for 'devm_ioremap_resource'
Date: Thu, 17 Jul 2014 13:24:46 +0200
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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
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