From 032900e62c176d75923baf95ad880e5d6ba71171 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Date: Tue, 10 Apr 2018 14:21:26 +0530
Subject: [PATCH] powerpc/8xx: Fix build with hugetlbfs enabled

References: FATE#326523
Patch-mainline: v4.17-rc1
Git-commit: 032900e62c176d75923baf95ad880e5d6ba71171

8xx uses the 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

  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'
  arch/powerpc/mm/slice.c:656:3: error: implicit declaration of function 'alloc_extended_context'

on PPC64 the mmu_context.h was included via linux/pkeys.h

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
 arch/powerpc/mm/slice.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index 9cd87d11fe4e..205fe557ca10 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -35,6 +35,7 @@
 #include <asm/mmu.h>
 #include <asm/copro.h>
 #include <asm/hugetlb.h>
+#include <asm/mmu_context.h>
 
 static DEFINE_SPINLOCK(slice_convert_lock);
 
-- 
2.13.7