linux-next: build warning after merge of the akpm tree

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