x86: ifdef 32-bit and 64-bit NR_RANGE_MR for save_mr() unification

Impact: cleanup

As a trivial preparation for moving common code to arc/x86/mm/init.c,
ifdef the 32-bit and 64-bit versions of NR_RANGE_MR.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <1236257708-27269-12-git-send-email-penberg@cs.helsinki.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/mm/init_32.c

@@ -900,7 +900,11 @@ struct map_range {
 	unsigned page_size_mask;
 };
 
+#ifdef CONFIG_X86_32
 #define NR_RANGE_MR 3
+#else /* CONFIG_X86_64 */
+#define NR_RANGE_MR 5
+#endif
 
 static int save_mr(struct map_range *mr, int nr_range,
 		   unsigned long start_pfn, unsigned long end_pfn,

arch/x86/mm/init_64.c

@@ -660,7 +660,11 @@ struct map_range {
 	unsigned page_size_mask;
 };
 
+#ifdef CONFIG_X86_32
+#define NR_RANGE_MR 3
+#else /* CONFIG_X86_64 */
 #define NR_RANGE_MR 5
+#endif
 
 static int save_mr(struct map_range *mr, int nr_range,
 		   unsigned long start_pfn, unsigned long end_pfn,