Hi Andrew, After merging the akpm tree, today's linux-next build (powerpc ppc64_defconfig) failed like this: arch/powerpc/mm/mem.c: In function 'arch_add_memory': arch/powerpc/mm/mem.c:134:2: error: implicit declaration of function '__add_pages' [-Werror=implicit-function-declaration] arch/powerpc/mm/mem.c: In function 'arch_remove_memory': arch/powerpc/mm/mem.c:145:2: error: implicit declaration of function '__remove_pages' [-Werror=implicit-function-declaration] arch/powerpc/platforms/pseries/hotplug-memory.c: In function 'pseries_remove_memblock': arch/powerpc/platforms/pseries/hotplug-memory.c:104:3: error: implicit declaration of function '__remove_pages' [-Werror=implicit-function-declaration] mm/bootmem.c: In function 'free_all_bootmem_node': mm/bootmem.c:269:2: error: implicit declaration of function 'register_page_bootmem_info_node' [-Werror=implicit-function-declaration] Presumably caused by commit "mm: break circular include from linux/mmzone.h". That is a very optimistic patch :-) I have reverted that commit for today. -- Cheers, Stephen Rothwell sfr@canb.auug.org.au