diff --git a/arch/x86_64/kernel/pci-calgary.c b/arch/x86_64/kernel/pci-calgary.c
index fa50d6a1ce46cd4ee681fb0eadc73a1336206271..d10fee8c241849b683fb7c5e6575b82fa2e5ffde 100644
--- a/arch/x86_64/kernel/pci-calgary.c
+++ b/arch/x86_64/kernel/pci-calgary.c
@@ -429,7 +429,7 @@ static int calgary_nontranslate_map_sg(struct device* dev,
 	return nelems;
 }
 
-int calgary_map_sg(struct device *dev, struct scatterlist *sg,
+static int calgary_map_sg(struct device *dev, struct scatterlist *sg,
 	int nelems, int direction)
 {
 	struct iommu_table *tbl = find_iommu_table(dev);
@@ -474,7 +474,7 @@ int calgary_map_sg(struct device *dev, struct scatterlist *sg,
 	return 0;
 }
 
-dma_addr_t calgary_map_single(struct device *dev, void *vaddr,
+static dma_addr_t calgary_map_single(struct device *dev, void *vaddr,
 	size_t size, int direction)
 {
 	dma_addr_t dma_handle = bad_dma_address;
@@ -493,7 +493,7 @@ dma_addr_t calgary_map_single(struct device *dev, void *vaddr,
 	return dma_handle;
 }
 
-void calgary_unmap_single(struct device *dev, dma_addr_t dma_handle,
+static void calgary_unmap_single(struct device *dev, dma_addr_t dma_handle,
 	size_t size, int direction)
 {
 	struct iommu_table *tbl = find_iommu_table(dev);
@@ -506,7 +506,7 @@ void calgary_unmap_single(struct device *dev, dma_addr_t dma_handle,
 	iommu_free(tbl, dma_handle, npages);
 }
 
-void* calgary_alloc_coherent(struct device *dev, size_t size,
+static void* calgary_alloc_coherent(struct device *dev, size_t size,
 	dma_addr_t *dma_handle, gfp_t flag)
 {
 	void *ret = NULL;