Hi Andrew, After merging the akpm tree, today's linux-next build (arm defconfig) produced this warning: mm/page_alloc.c:4477:23: warning: 'sanitize_zone_movable_limit' defined but not used [-Wunused-function] Introduced by commit "page_alloc: introduce zone_movable_limit[] to keep movable limit for nodes" from the akpm tree. It is defined both when CONFIG_HAVE_MEMBLOCK_NODE_MAP is defined and not, but only used if it is defined. -- Cheers, Stephen Rothwell sfr@canb.auug.org.au