RFC x86: try to remove arch_get_ram_range

want to remove arch_get_ram_range, and use early_node_map instead.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 3d647b2..cf1cd3a 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1011,7 +1011,7 @@
 extern unsigned long find_max_pfn_with_active_regions(void);
 extern void free_bootmem_with_active_regions(int nid,
 						unsigned long max_low_pfn);
-typedef void (*work_fn_t)(unsigned long, unsigned long, void *);
+typedef int (*work_fn_t)(unsigned long, unsigned long, void *);
 extern void work_with_active_regions(int nid, work_fn_t work_fn, void *data);
 extern void sparse_memory_present_with_active_regions(int nid);
 #ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID