1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index febaee7ca57b..8aab24f35a5e 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -218,6 +218,7 @@ EXPORT_SYMBOL(arm_dma_zone_size);
  * so a successful GFP_DMA allocation will always satisfy this.
  */
 phys_addr_t arm_dma_limit;
+unsigned long arm_dma_pfn_limit;
 
 static void __init arm_adjust_dma_zone(unsigned long *size, unsigned long *hole,
         unsigned long dma_size)
@@ -240,6 +241,7 @@ void __init setup_dma_zone(const struct machine_desc *mdesc)
                 arm_dma_limit = PHYS_OFFSET + arm_dma_zone_size - 1;
         } else
                 arm_dma_limit = 0xffffffff;
+        arm_dma_pfn_limit = arm_dma_limit >> PAGE_SHIFT;
 #endif
 }