swiotlb-xen: merge xen_unmap_single into xen_swiotlb_unmap_page

No need for a no-op wrapper.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index f81031f0c1c7ba1b53747e5c42ee05b144343868..1190934098eb24dc3e040fc8216ef68897f0cb1e 100644 (file)
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -418,9 +418,8 @@ done:
  * After this call, reads by the cpu to the buffer are guaranteed to see
  * whatever the device wrote there.
  */
-static void xen_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
-                            size_t size, enum dma_data_direction dir,
-                            unsigned long attrs)
+static void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
+               size_t size, enum dma_data_direction dir, unsigned long attrs)
 {
        phys_addr_t paddr = xen_bus_to_phys(dev_addr);
 
@@ -434,13 +433,6 @@ static void xen_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
                swiotlb_tbl_unmap_single(hwdev, paddr, size, dir, attrs);
 }
 
-static void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
-                           size_t size, enum dma_data_direction dir,
-                           unsigned long attrs)
-{
-       xen_unmap_single(hwdev, dev_addr, size, dir, attrs);
-}
-
 static void
 xen_swiotlb_sync_single_for_cpu(struct device *dev, dma_addr_t dma_addr,
                size_t size, enum dma_data_direction dir)
@@ -481,7 +473,8 @@ xen_swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
        BUG_ON(dir == DMA_NONE);
 
        for_each_sg(sgl, sg, nelems, i)
-               xen_unmap_single(hwdev, sg->dma_address, sg_dma_len(sg), dir, attrs);
+               xen_swiotlb_unmap_page(hwdev, sg->dma_address, sg_dma_len(sg),
+                               dir, attrs);
 
 }