From c85ab4fe33065ca1fdcac26f0c00c837fe727ba7 Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Tue, 24 May 2022 07:42:05 +0200 Subject: [PATCH] powerpc/64s: Only set HAVE_ARCH_UNMAPPED_AREA when CONFIG_PPC_64S_HASH_MMU is set 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. Fixes: ab57bd7570d4 ("powerpc/mm: Move get_unmapped_area functions to slice.c") Reported-by: Laurent Dufour Signed-off-by: Christophe Leroy Tested-by: Laurent Dufour Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/e438c6cc09f94085e56733ed2d6e84333c35292a.1653370913.git.christophe.leroy@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)