Exynos build failure in -next allmodconfig

[Russell King - ARM Linux]

On Mon, Sep 15, 2014 at 09:34:58AM -0700, Mark Brown wrote:
> On Mon, Sep 15, 2014 at 11:57:09AM +0100, Build bot for Mark Brown wrote:
> 
> Today's -next got a build failure in ARM allmodconfig due to platsmp.c:
> 
> | arch/arm/mach-exynos/platsmp.c:198:31: warning: incorrect type in return expression (different address spaces)
> | arch/arm/mach-exynos/platsmp.c:198:31:    expected void [noderef] <asn:2>*
> | arch/arm/mach-exynos/platsmp.c:198:31:    got void *
> | arch/arm/mach-exynos/platsmp.c:198:31: warning: incorrect type in return expression (different address spaces)
> | arch/arm/mach-exynos/platsmp.c:198:31:    expected void [noderef] <asn:2>*
> | arch/arm/mach-exynos/platsmp.c:198:31:    got void *
> |   CC      arch/arm/mach-exynos/platsmp.o
> | /tmp/ccC9fkwF.s: Assembler messages:
> | /tmp/ccC9fkwF.s:423: Error: selected processor does not support ARM mode `isb '
> | /tmp/ccC9fkwF.s:428: Error: selected processor does not support ARM mode `isb '
> | /tmp/ccC9fkwF.s:429: Error: selected processor does not support ARM mode `dsb '
> | scripts/Makefile.build:257: recipe for target 'arch/arm/mach-exynos/platsmp.o' failed
> 
> Looks like we need a compiler flags override for that file.

Or.. the question is why a .c file is not using the proper macros.

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