From: Kim Phillips Date: Mon, 26 Jan 2015 19:22:22 +0000 (-0600) Subject: powerpc/mm: fix undefined reference to `.__kernel_map_pages' on FSL PPC64 X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=ce614c3c6c8d215c9a00d6c1fce70211f75d3310;p=deliverable%2Flinux.git powerpc/mm: fix undefined reference to `.__kernel_map_pages' on FSL PPC64 arch/powerpc has __kernel_map_pages implementations in mm/pgtable_32.c, and mm/hash_utils_64.c, of which the former is built for PPC32, and the latter for PPC64 machines with PPC_STD_MMU. Fix arch/powerpc/Kconfig to not select ARCH_SUPPORTS_DEBUG_PAGEALLOC when CONFIG_PPC_STD_MMU_64 isn't defined, i.e., for 64-bit book3e builds to use the generic __kernel_map_pages() in mm/debug-pagealloc.c. LD init/built-in.o mm/built-in.o: In function `kernel_map_pages': include/linux/mm.h:2076: undefined reference to `.__kernel_map_pages' include/linux/mm.h:2076: undefined reference to `.__kernel_map_pages' include/linux/mm.h:2076: undefined reference to `.__kernel_map_pages' Makefile:925: recipe for target 'vmlinux' failed make: *** [vmlinux] Error 1 Signed-off-by: Kim Phillips Signed-off-by: Michael Ellerman --- diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index a2a168e2dfe7..22b0940494bb 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -256,6 +256,7 @@ config PPC_OF_PLATFORM_PCI default n config ARCH_SUPPORTS_DEBUG_PAGEALLOC + depends on PPC32 || PPC_STD_MMU_64 def_bool y config ARCH_SUPPORTS_UPROBES