1 files changed, 2 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 1f2a711a261e..c1ad9db934f6 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -90,7 +90,7 @@ static int dma_iommu_dma_supported(struct device *dev, u64 mask)
                 return 1;
 }
 
-u64 dma_iommu_get_required_mask(struct device *dev)
+static u64 dma_iommu_get_required_mask(struct device *dev)
 {
         struct iommu_table *tbl = get_iommu_table_base(dev);
         u64 mask;
@@ -111,5 +111,6 @@ struct dma_map_ops dma_iommu_ops = {
         .dma_supported  = dma_iommu_dma_supported,
         .map_page       = dma_iommu_map_page,
         .unmap_page     = dma_iommu_unmap_page,
+        .get_required_mask      = dma_iommu_get_required_mask,
 };
 EXPORT_SYMBOL(dma_iommu_ops);