x86: unify io_remap_pfn_range

Impact: cleanup

Unify io_remap_pfn_range.  Don't demacro yet.
Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

arch/x86/include/asm/pgtable.h

@@ -524,6 +524,9 @@ static inline unsigned long pages_to_mb(unsigned long npg)
 	return npg >> (20 - PAGE_SHIFT);
 }
 
+#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)	\
+	remap_pfn_range(vma, vaddr, pfn, size, prot)
+
 #if PAGETABLE_LEVELS > 2
 static inline int pud_none(pud_t pud)
 {

arch/x86/include/asm/pgtable_32.h

@@ -133,7 +133,4 @@ do {						\
 #define kern_addr_valid(kaddr)	(0)
 #endif
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)	\
-	remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 #endif /* _ASM_X86_PGTABLE_32_H */

arch/x86/include/asm/pgtable_64.h

@@ -205,9 +205,6 @@ extern int direct_gbpages;
 extern int kern_addr_valid(unsigned long addr);
 extern void cleanup_highmap(void);
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)	\
-	remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 #define HAVE_ARCH_UNMAPPED_AREA
 #define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN