When CONFIG_PPC_64S_HASH_MMU is not set, slice.c is not built and
arch_get_unmapped_area() and arch_get_unmapped_area_topdown() are
not provided because RADIX uses the generic ones.
Therefore, neither set HAVE_ARCH_UNMAPPED_AREA nor
HAVE_ARCH_UNMAPPED_AREA_TOPDOWN.
Reported-by: Laurent Dufour <lduf...@linux.ibm.com>
Fixes: ab57bd7570d4 ("powerpc/mm: Move get_unmapped_area functions to slice.c")
Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu>
---
arch/powerpc/include/asm/book3s/64/slice.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/include/asm/book3s/64/slice.h
b/arch/powerpc/include/asm/book3s/64/slice.h
index b8eb4ad271b9..5fbe18544cbd 100644
--- a/arch/powerpc/include/asm/book3s/64/slice.h
+++ b/arch/powerpc/include/asm/book3s/64/slice.h
@@ -4,11 +4,13 @@
#ifndef __ASSEMBLY__
+#ifdef CONFIG_PPC_64S_HASH_MMU
#ifdef CONFIG_HUGETLB_PAGE
#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
#endif
#define HAVE_ARCH_UNMAPPED_AREA
#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
+#endif
#define SLICE_LOW_SHIFT 28
#define SLICE_LOW_TOP (0x100000000ul)
--
2.35.3
