powerpc/8xx: Build fix with Hugetlbfs enabled

[Michael Ellerman]

On Tue, 2018-04-10 at 08:51:26 UTC, "Aneesh Kumar K.V" wrote:
> 8xx use slice code when hugetlbfs is enabled. We missed a header include on
> 8xx which resulted in the below build failure.
> 
> config: mpc885_ads_defconfig + CONFIG_HUGETLBFS
> 
>    CC      arch/powerpc/mm/slice.o
> arch/powerpc/mm/slice.c: In function 'slice_get_unmapped_area':
> arch/powerpc/mm/slice.c:655:2: error: implicit declaration of function 'need_extra_context' [-Werror=implicit-function-declaration]
> arch/powerpc/mm/slice.c:656:3: error: implicit declaration of function 'alloc_extended_context' [-Werror=implicit-function-declaration]
> cc1: all warnings being treated as errors
> make[1]: *** [arch/powerpc/mm/slice.o] Error 1
> make: *** [arch/powerpc/mm] Error 2
> 
> on PPC64 the mmu_context.h was included via linux/pkeys.h
> 
> CC: Christophe LEROY <christophe.leroy at c-s.fr>
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.ibm.com>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/032900e62c176d75923baf95ad880e

cheers