make sn DMA mapping functions static

Now we don't need to export sn DMA mapping functions.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/ia64/sn/pci/pci_dma.c

@@ -32,7 +32,7 @@
  * this function.  Of course, SN only supports devices that have 32 or more
  * address bits when using the PMU.
  */
-int sn_dma_supported(struct device *dev, u64 mask)
+static int sn_dma_supported(struct device *dev, u64 mask)
 {
 	BUG_ON(dev->bus != &pci_bus_type);
 
@@ -40,7 +40,6 @@ int sn_dma_supported(struct device *dev, u64 mask)
 		return 0;
 	return 1;
 }
-EXPORT_SYMBOL(sn_dma_supported);
 
 /**
  * sn_dma_set_mask - set the DMA mask
@@ -76,7 +75,7 @@ EXPORT_SYMBOL(sn_dma_set_mask);
  * queue for a SCSI controller).  See Documentation/DMA-API.txt for
  * more information.
  */
-void *sn_dma_alloc_coherent(struct device *dev, size_t size,
+static void *sn_dma_alloc_coherent(struct device *dev, size_t size,
 				   dma_addr_t * dma_handle, gfp_t flags)
 {
 	void *cpuaddr;
@@ -125,7 +124,6 @@ void *sn_dma_alloc_coherent(struct device *dev, size_t size,
 
 	return cpuaddr;
 }
-EXPORT_SYMBOL(sn_dma_alloc_coherent);
 
 /**
  * sn_pci_free_coherent - free memory associated with coherent DMAable region
@@ -137,7 +135,7 @@ EXPORT_SYMBOL(sn_dma_alloc_coherent);
  * Frees the memory allocated by dma_alloc_coherent(), potentially unmapping
  * any associated IOMMU mappings.
  */
-void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
+static void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
 				 dma_addr_t dma_handle)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
@@ -148,7 +146,6 @@ void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
 	provider->dma_unmap(pdev, dma_handle, 0);
 	free_pages((unsigned long)cpu_addr, get_order(size));
 }
-EXPORT_SYMBOL(sn_dma_free_coherent);
 
 /**
  * sn_dma_map_single_attrs - map a single page for DMA
@@ -174,7 +171,7 @@ EXPORT_SYMBOL(sn_dma_free_coherent);
  * TODO: simplify our interface;
  *       figure out how to save dmamap handle so can use two step.
  */
-dma_addr_t sn_dma_map_single_attrs(struct device *dev, void *cpu_addr,
+static dma_addr_t sn_dma_map_single_attrs(struct device *dev, void *cpu_addr,
 					  size_t size, int direction,
 					  struct dma_attrs *attrs)
 {
@@ -202,7 +199,6 @@ dma_addr_t sn_dma_map_single_attrs(struct device *dev, void *cpu_addr,
 	}
 	return dma_addr;
 }
-EXPORT_SYMBOL(sn_dma_map_single_attrs);
 
 /**
  * sn_dma_unmap_single_attrs - unamp a DMA mapped page
@@ -216,7 +212,7 @@ EXPORT_SYMBOL(sn_dma_map_single_attrs);
  * by @dma_handle into the coherence domain.  On SN, we're always cache
  * coherent, so we just need to free any ATEs associated with this mapping.
  */
-void sn_dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
+static void sn_dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
 				      size_t size, int direction,
 				      struct dma_attrs *attrs)
 {
@@ -227,7 +223,6 @@ void sn_dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
 
 	provider->dma_unmap(pdev, dma_addr, direction);
 }
-EXPORT_SYMBOL(sn_dma_unmap_single_attrs);
 
 /**
  * sn_dma_unmap_sg_attrs - unmap a DMA scatterlist
@@ -239,7 +234,7 @@ EXPORT_SYMBOL(sn_dma_unmap_single_attrs);
  *
  * Unmap a set of streaming mode DMA translations.
  */
-void sn_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
+static void sn_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
 				  int nhwentries, int direction,
 				  struct dma_attrs *attrs)
 {
@@ -256,7 +251,6 @@ void sn_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
 		sg->dma_length = 0;
 	}
 }
-EXPORT_SYMBOL(sn_dma_unmap_sg_attrs);
 
 /**
  * sn_dma_map_sg_attrs - map a scatterlist for DMA
@@ -273,7 +267,7 @@ EXPORT_SYMBOL(sn_dma_unmap_sg_attrs);
  *
  * Maps each entry of @sg for DMA.
  */
-int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
+static int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
 			       int nhwentries, int direction, struct dma_attrs *attrs)
 {
 	unsigned long phys_addr;
@@ -321,41 +315,35 @@ int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
 
 	return nhwentries;
 }
-EXPORT_SYMBOL(sn_dma_map_sg_attrs);
 
-void sn_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
+static void sn_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
 				       size_t size, int direction)
 {
 	BUG_ON(dev->bus != &pci_bus_type);
 }
-EXPORT_SYMBOL(sn_dma_sync_single_for_cpu);
 
-void sn_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
+static void sn_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
 					  size_t size, int direction)
 {
 	BUG_ON(dev->bus != &pci_bus_type);
 }
-EXPORT_SYMBOL(sn_dma_sync_single_for_device);
 
-void sn_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+static void sn_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
 				   int nelems, int direction)
 {
 	BUG_ON(dev->bus != &pci_bus_type);
 }
-EXPORT_SYMBOL(sn_dma_sync_sg_for_cpu);
 
-void sn_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+static void sn_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
 				      int nelems, int direction)
 {
 	BUG_ON(dev->bus != &pci_bus_type);
 }
-EXPORT_SYMBOL(sn_dma_sync_sg_for_device);
 
-int sn_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+static int sn_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
 	return 0;
 }
-EXPORT_SYMBOL(sn_dma_mapping_error);
 
 char *sn_pci_get_legacy_mem(struct pci_bus *bus)
 {
@@ -467,7 +455,7 @@ int sn_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size)
 	return ret;
 }
 
-struct dma_mapping_ops sn_dma_ops = {
+static struct dma_mapping_ops sn_dma_ops = {
 	.alloc_coherent		= sn_dma_alloc_coherent,
 	.free_coherent		= sn_dma_free_coherent,
 	.map_single_attrs	= sn_dma_map_single_attrs,