1 files changed, 13 insertions, 11 deletions

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index ec61e1507d0a..1fc15bf63945 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -61,8 +61,8 @@ enum dma_sync_target {
 int swiotlb_force;
 
 /*
- * Used to do a quick range check in unmap_single and
- * sync_single_*, to see if the memory was in fact allocated by this
+ * Used to do a quick range check in swiotlb_tbl_unmap_single and
+ * swiotlb_tbl_sync_single_*, to see if the memory was in fact allocated by this
  * API.
  */
 static char *io_tlb_start, *io_tlb_end;
@@ -492,7 +492,8 @@ map_single(struct device *hwdev, phys_addr_t phys, size_t size, int dir)
  * dma_addr is the kernel virtual address of the bounce buffer to unmap.
  */
 static void
-do_unmap_single(struct device *hwdev, char *dma_addr, size_t size, int dir)
+swiotlb_tbl_unmap_single(struct device *hwdev, char *dma_addr, size_t size,
+                        int dir)
 {
         unsigned long flags;
         int i, count, nslots = ALIGN(size, 1 << IO_TLB_SHIFT) >> IO_TLB_SHIFT;
@@ -532,7 +533,7 @@ do_unmap_single(struct device *hwdev, char *dma_addr, size_t size, int dir)
 }
 
 static void
-sync_single(struct device *hwdev, char *dma_addr, size_t size,
+swiotlb_tbl_sync_single(struct device *hwdev, char *dma_addr, size_t size,
             int dir, int target)
 {
         int index = (dma_addr - io_tlb_start) >> IO_TLB_SHIFT;
@@ -580,8 +581,8 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size,
         }
         if (!ret) {
                 /*
-                 * We are either out of memory or the device can't DMA
-                 * to GFP_DMA memory; fall back on map_single(), which
+                 * We are either out of memory or the device can't DMA to
+                 * GFP_DMA memory; fall back on map_single(), which
                  * will grab memory from the lowest available address range.
                  */
                 ret = map_single(hwdev, 0, size, DMA_FROM_DEVICE);
@@ -599,7 +600,7 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size,
                        (unsigned long long)dev_addr);
 
                 /* DMA_TO_DEVICE to avoid memcpy in unmap_single */
-                do_unmap_single(hwdev, ret, size, DMA_TO_DEVICE);
+                swiotlb_tbl_unmap_single(hwdev, ret, size, DMA_TO_DEVICE);
                 return NULL;
         }
         *dma_handle = dev_addr;
@@ -617,8 +618,8 @@ swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
         if (!is_swiotlb_buffer(paddr))
                 free_pages((unsigned long)vaddr, get_order(size));
         else
-                /* DMA_TO_DEVICE to avoid memcpy in unmap_single */
-                do_unmap_single(hwdev, vaddr, size, DMA_TO_DEVICE);
+                /* DMA_TO_DEVICE to avoid memcpy in swiotlb_tbl_unmap_single */
+                swiotlb_tbl_unmap_single(hwdev, vaddr, size, DMA_TO_DEVICE);
 }
 EXPORT_SYMBOL(swiotlb_free_coherent);
 
@@ -708,7 +709,7 @@ static void unmap_single(struct device *hwdev, dma_addr_t dev_addr,
         BUG_ON(dir == DMA_NONE);
 
         if (is_swiotlb_buffer(paddr)) {
-                do_unmap_single(hwdev, phys_to_virt(paddr), size, dir);
+                swiotlb_tbl_unmap_single(hwdev, phys_to_virt(paddr), size, dir);
                 return;
         }
 
@@ -751,7 +752,8 @@ swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr,
         BUG_ON(dir == DMA_NONE);
 
         if (is_swiotlb_buffer(paddr)) {
-                sync_single(hwdev, phys_to_virt(paddr), size, dir, target);
+                swiotlb_tbl_sync_single(hwdev, phys_to_virt(paddr), size, dir,
+                                       target);
                 return;
         }