* supporting all features of AMD IOMMU page tables like level skipping
  * and full 64 bit address spaces.
  */
-static int iommu_map(struct protection_domain *dom,
-                    unsigned long bus_addr,
-                    unsigned long phys_addr,
-                    int prot)
+static int iommu_map_page(struct protection_domain *dom,
+                         unsigned long bus_addr,
+                         unsigned long phys_addr,
+                         int prot)
 {
        u64 __pte, *pte, *page;
 
 
        for (addr = e->address_start; addr < e->address_end;
             addr += PAGE_SIZE) {
-               ret = iommu_map(&dma_dom->domain, addr, addr, e->prot);
+               ret = iommu_map_page(&dma_dom->domain, addr, addr, e->prot);
                if (ret)
                        return ret;
                /*