1 files changed, 6 insertions, 0 deletions

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 2410a3cb1c53..5b5cbb5e1816 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -70,7 +70,9 @@ static void __free_pages_ok(struct page *page, unsigned int order);
  */
 int sysctl_lowmem_reserve_ratio[MAX_NR_ZONES-1] = {
          256,
+#ifdef CONFIG_ZONE_DMA32
          256,
+#endif
          32
 };
 
@@ -85,7 +87,9 @@ EXPORT_SYMBOL(zone_table);
 
 static char *zone_names[MAX_NR_ZONES] = {
          "DMA",
+#ifdef CONFIG_ZONE_DMA32
          "DMA32",
+#endif
          "Normal",
          "HighMem"
 };
@@ -1373,8 +1377,10 @@ static inline int highest_zone(int zone_bits)
         int res = ZONE_NORMAL;
         if (zone_bits & (__force int)__GFP_HIGHMEM)
                 res = ZONE_HIGHMEM;
+#ifdef CONFIG_ZONE_DMA32
         if (zone_bits & (__force int)__GFP_DMA32)
                 res = ZONE_DMA32;
+#endif
         if (zone_bits & (__force int)__GFP_DMA)
                 res = ZONE_DMA;
         return res;