consolidate io_remap_pfn_range definitions

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

34 files changed, 7 insertions, 105 deletions

diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h
index 81a4342d5a3..d8f9b7e8923 100644
--- a/arch/alpha/include/asm/pgtable.h
+++ b/arch/alpha/include/asm/pgtable.h
@@ -354,9 +354,6 @@ extern inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
 #define kern_addr_valid(addr)	(1)
 #endif
 
-#define io_remap_pfn_range(vma, start, pfn, size, prot)	\
-		remap_pfn_range(vma, start, pfn, size, prot)
-
 #define pte_ERROR(e) \
 	printk("%s:%d: bad pte %016lx.\n", __FILE__, __LINE__, pte_val(e))
 #define pmd_ERROR(e) \
diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h
index 95b1522212a..c110ac87d22 100644
--- a/arch/arc/include/asm/pgtable.h
+++ b/arch/arc/include/asm/pgtable.h
@@ -394,9 +394,6 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
  * remap a physical page `pfn' of size `size' with page protection `prot'
  * into virtual address `from'
  */
-#define io_remap_pfn_range(vma, from, pfn, size, prot) \
-			remap_pfn_range(vma, from, pfn, size, prot)
-
 #include <asm-generic/pgtable.h>
 
 /* to cope with aliasing VIPT cache */
diff --git a/arch/arm/include/asm/pgtable-nommu.h b/arch/arm/include/asm/pgtable-nommu.h
index 7ec60d6075b..0642228ff78 100644
--- a/arch/arm/include/asm/pgtable-nommu.h
+++ b/arch/arm/include/asm/pgtable-nommu.h
@@ -79,8 +79,6 @@ extern unsigned int kobjsize(const void *objp);
  * No page table caches to initialise.
  */
 #define pgtable_cache_init()	do { } while (0)
-#define io_remap_pfn_range	remap_pfn_range
-
 
 /*
  * All 32bit addresses are effectively valid for vmalloc...
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index 9bcd262a900..229e0dde9c7 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -318,13 +318,6 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 #define HAVE_ARCH_UNMAPPED_AREA
 #define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
 
-/*
- * remap a physical page `pfn' of size `size' with page protection `prot'
- * into virtual address `from'
- */
-#define io_remap_pfn_range(vma,from,pfn,size,prot) \
-		remap_pfn_range(vma, from, pfn, size, prot)
-
 #define pgtable_cache_init() do { } while (0)
 
 #endif /* !__ASSEMBLY__ */
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index e333a243bfc..3a768e96cf0 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -320,13 +320,6 @@ extern int kern_addr_valid(unsigned long addr);
 
 #include <asm-generic/pgtable.h>
 
-/*
- * remap a physical page `pfn' of size `size' with page protection `prot'
- * into virtual address `from'
- */
-#define io_remap_pfn_range(vma,from,pfn,size,prot) \
-		remap_pfn_range(vma, from, pfn, size, prot)
-
 #define pgtable_cache_init() do { } while (0)
 
 #endif /* !__ASSEMBLY__ */
diff --git a/arch/avr32/include/asm/pgtable.h b/arch/avr32/include/asm/pgtable.h
index 6fbfea61f7b..4beff97e203 100644
--- a/arch/avr32/include/asm/pgtable.h
+++ b/arch/avr32/include/asm/pgtable.h
@@ -362,9 +362,6 @@ typedef pte_t *pte_addr_t;
 
 #define kern_addr_valid(addr)	(1)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)	\
-	remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 /* No page table caches to initialize (?) */
 #define pgtable_cache_init()	do { } while(0)
 
diff --git a/arch/blackfin/include/asm/pgtable.h b/arch/blackfin/include/asm/pgtable.h
index b8663921d3c..0b049019eba 100644
--- a/arch/blackfin/include/asm/pgtable.h
+++ b/arch/blackfin/include/asm/pgtable.h
@@ -88,7 +88,6 @@ extern char empty_zero_page[];
  * No page table caches to initialise.
  */
 #define pgtable_cache_init()	do { } while (0)
-#define io_remap_pfn_range      remap_pfn_range
 
 /*
  * All 32bit addresses are effectively valid for vmalloc...
diff --git a/arch/c6x/include/asm/pgtable.h b/arch/c6x/include/asm/pgtable.h
index 38a4312eb2c..c0eed5b1886 100644
--- a/arch/c6x/include/asm/pgtable.h
+++ b/arch/c6x/include/asm/pgtable.h
@@ -71,7 +71,6 @@ extern unsigned long empty_zero_page;
  * No page table caches to initialise
  */
 #define pgtable_cache_init()   do { } while (0)
-#define io_remap_pfn_range      remap_pfn_range
 
 #include <asm-generic/pgtable.h>
 
diff --git a/arch/cris/include/asm/pgtable.h b/arch/cris/include/asm/pgtable.h
index 7df43013835..8b8c8679322 100644
--- a/arch/cris/include/asm/pgtable.h
+++ b/arch/cris/include/asm/pgtable.h
@@ -258,9 +258,6 @@ static inline pgd_t * pgd_offset(const struct mm_struct *mm, unsigned long addre
 #define pgd_ERROR(e) \
         printk("%s:%d: bad pgd %p(%08lx).\n", __FILE__, __LINE__, &(e), pgd_val(e))
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)         \
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 
 extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; /* defined in head.S */
 
diff --git a/arch/frv/include/asm/pgtable.h b/arch/frv/include/asm/pgtable.h
index 6bc241e4b4f..eb0110acd19 100644
--- a/arch/frv/include/asm/pgtable.h
+++ b/arch/frv/include/asm/pgtable.h
@@ -488,9 +488,6 @@ static inline int pte_file(pte_t pte)
 #define PageSkip(page)		(0)
 #define kern_addr_valid(addr)	(1)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
diff --git a/arch/h8300/include/asm/pgtable.h b/arch/h8300/include/asm/pgtable.h
index 62ef17676b4..7ca20f894dd 100644
--- a/arch/h8300/include/asm/pgtable.h
+++ b/arch/h8300/include/asm/pgtable.h
@@ -52,9 +52,6 @@ extern int is_in_rom(unsigned long);
  */
 #define pgtable_cache_init()   do { } while (0)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 /*
  * All 32bit addresses are effectively valid for vmalloc...
  * Sort of meaningless for non-VM targets.
diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h
index 20d55f69fe5..d8bd54fa431 100644
--- a/arch/hexagon/include/asm/pgtable.h
+++ b/arch/hexagon/include/asm/pgtable.h
@@ -452,10 +452,6 @@ static inline int pte_exec(pte_t pte)
 
 #define __pte_offset(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
 
-/* Nothing special about IO remapping at this point */
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
-	remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 /*  I think this is in case we have page table caches; needed by init/main.c  */
 #define pgtable_cache_init()    do { } while (0)
 
diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
index 815810cbbed..7935115398a 100644
--- a/arch/ia64/include/asm/pgtable.h
+++ b/arch/ia64/include/asm/pgtable.h
@@ -493,9 +493,6 @@ extern void paging_init (void);
 #define pte_to_pgoff(pte)		((pte_val(pte) << 1) >> 3)
 #define pgoff_to_pte(off)		((pte_t) { ((off) << 2) | _PAGE_FILE })
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 /*
  * ZERO_PAGE is a global shared page that is always zero: used
  * for zero-mapped memory areas etc..
diff --git a/arch/m32r/include/asm/pgtable.h b/arch/m32r/include/asm/pgtable.h
index 8a28cfea272..103ce6710f0 100644
--- a/arch/m32r/include/asm/pgtable.h
+++ b/arch/m32r/include/asm/pgtable.h
@@ -347,9 +347,6 @@ static inline void pmd_set(pmd_t * pmdp, pte_t * ptep)
 /* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
 #define kern_addr_valid(addr)	(1)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)	\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
diff --git a/arch/m68k/include/asm/pgtable_mm.h b/arch/m68k/include/asm/pgtable_mm.h
index dc35e0e106e..9f5abbda1ea 100644
--- a/arch/m68k/include/asm/pgtable_mm.h
+++ b/arch/m68k/include/asm/pgtable_mm.h
@@ -135,9 +135,6 @@ static inline void update_mmu_cache(struct vm_area_struct *vma,
 
 #define kern_addr_valid(addr)	(1)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 /* MMU-specific headers */
 
 #ifdef CONFIG_SUN3
diff --git a/arch/m68k/include/asm/pgtable_no.h b/arch/m68k/include/asm/pgtable_no.h
index 037028f4ab7..c527fc2ecf8 100644
--- a/arch/m68k/include/asm/pgtable_no.h
+++ b/arch/m68k/include/asm/pgtable_no.h
@@ -55,9 +55,6 @@ extern unsigned int kobjsize(const void *objp);
  */
 #define pgtable_cache_init()	do { } while (0)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 /*
  * All 32bit addresses are effectively valid for vmalloc...
  * Sort of meaningless for non-VM targets.
diff --git a/arch/metag/include/asm/pgtable.h b/arch/metag/include/asm/pgtable.h
index 1cd13d59519..0d9dc548729 100644
--- a/arch/metag/include/asm/pgtable.h
+++ b/arch/metag/include/asm/pgtable.h
@@ -333,9 +333,6 @@ static inline void update_mmu_cache(struct vm_area_struct *vma,
 
 #define kern_addr_valid(addr)	(1)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-	remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 /*
  * No page table caches to initialise
  */
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index a7311cd9dee..95cef0b5f83 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -13,9 +13,6 @@
 
 #include <asm/setup.h>
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 #ifndef __ASSEMBLY__
 extern int mem_init_done;
 #endif
diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
index 8b8f6b39336..008324d1c26 100644
--- a/arch/mips/include/asm/pgtable.h
+++ b/arch/mips/include/asm/pgtable.h
@@ -394,9 +394,7 @@ static inline int io_remap_pfn_range(struct vm_area_struct *vma,
 	phys_t phys_addr_high = fixup_bigphys_addr(pfn << PAGE_SHIFT, size);
 	return remap_pfn_range(vma, vaddr, phys_addr_high >> PAGE_SHIFT, size, prot);
 }
-#else
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
+#define io_remap_pfn_range io_remap_pfn_range
 #endif
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
diff --git a/arch/mn10300/include/asm/pgtable.h b/arch/mn10300/include/asm/pgtable.h
index a1e894b5f65..2ddaa67e798 100644
--- a/arch/mn10300/include/asm/pgtable.h
+++ b/arch/mn10300/include/asm/pgtable.h
@@ -486,9 +486,6 @@ extern void update_mmu_cache(struct vm_area_struct *vma,
 
 #define kern_addr_valid(addr)	(1)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
-	remap_pfn_range((vma), (vaddr), (pfn), (size), (prot))
-
 #define MK_IOSPACE_PFN(space, pfn)	(pfn)
 #define GET_IOSPACE(pfn)		0
 #define GET_PFN(pfn)			(pfn)
diff --git a/arch/openrisc/include/asm/pgtable.h b/arch/openrisc/include/asm/pgtable.h
index 14c900cfd30..37bf6a3ef8f 100644
--- a/arch/openrisc/include/asm/pgtable.h
+++ b/arch/openrisc/include/asm/pgtable.h
@@ -446,9 +446,6 @@ static inline void update_mmu_cache(struct vm_area_struct *vma,
 
 #define kern_addr_valid(addr)           (1)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)         \
-	remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 #include <asm-generic/pgtable.h>
 
 /*
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 1e40d7f86be..34899b5d959 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -506,9 +506,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #endif
 
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 #define pgprot_noncached(prot) __pgprot(pgprot_val(prot) | _PAGE_NO_CACHE)
 
 /* We provide our own get_unmapped_area to provide cache coherency */
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index 7aeb9555f6e..b6293d26bd3 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -198,9 +198,6 @@ extern void paging_init(void);
  */
 #define kern_addr_valid(addr)	(1)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 #include <asm-generic/pgtable.h>
 
 
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index e8b6e5b8932..9aefa3c64eb 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -58,9 +58,6 @@ extern unsigned long zero_page_mask;
 #define __HAVE_COLOR_ZERO_PAGE
 
 /* TODO: s390 cannot support io_remap_pfn_range... */
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) 	       \
-	remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 #endif /* !__ASSEMBLY__ */
 
 /*
diff --git a/arch/score/include/asm/pgtable.h b/arch/score/include/asm/pgtable.h
index 2fd46980768..db96ad9afc0 100644
--- a/arch/score/include/asm/pgtable.h
+++ b/arch/score/include/asm/pgtable.h
@@ -113,9 +113,6 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
 #define pte_clear(mm, addr, xp)		\
 	do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 /*
  * The "pgd_xxx()" functions here are trivial for a folded two-level
  * setup: the pgd is never bad, and a pmd always exists (as it's folded
diff --git a/arch/sh/include/asm/pgtable.h b/arch/sh/include/asm/pgtable.h
index 9210e93a92c..cf434c64408 100644
--- a/arch/sh/include/asm/pgtable.h
+++ b/arch/sh/include/asm/pgtable.h
@@ -124,9 +124,6 @@ typedef pte_t *pte_addr_t;
 
 #define kern_addr_valid(addr)	(1)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 #define pte_pfn(x)		((unsigned long)(((x).pte_low >> PAGE_SHIFT)))
 
 /*
diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index 6fc13483f70..502f632f6cc 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -443,6 +443,7 @@ static inline int io_remap_pfn_range(struct vm_area_struct *vma,
 
 	return remap_pfn_range(vma, from, phys_base >> PAGE_SHIFT, size, prot);
 }
+#define io_remap_pfn_range io_remap_pfn_range 
 
 #define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
 #define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 7619f2f792a..79c214efa3f 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -914,6 +914,7 @@ static inline int io_remap_pfn_range(struct vm_area_struct *vma,
 
 	return remap_pfn_range(vma, from, phys_base >> PAGE_SHIFT, size, prot);
 }
+#define io_remap_pfn_range io_remap_pfn_range 
 
 #include <asm/tlbflush.h>
 #include <asm-generic/pgtable.h>
diff --git a/arch/tile/include/asm/pgtable.h b/arch/tile/include/asm/pgtable.h
index 73b1a4c9ad0..33587f16c15 100644
--- a/arch/tile/include/asm/pgtable.h
+++ b/arch/tile/include/asm/pgtable.h
@@ -362,9 +362,6 @@ do {						\
 #define kern_addr_valid(addr)	(1)
 #endif /* CONFIG_FLATMEM */
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 extern void vmalloc_sync_all(void);
 
 #endif /* !__ASSEMBLY__ */
diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h
index ae02909a187..bf974f712af 100644
--- a/arch/um/include/asm/pgtable.h
+++ b/arch/um/include/asm/pgtable.h
@@ -69,8 +69,6 @@ extern unsigned long end_iomem;
 #define PAGE_KERNEL	__pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED)
 #define PAGE_KERNEL_EXEC	__pgprot(__PAGE_KERNEL_EXEC)
 
-#define io_remap_pfn_range	remap_pfn_range
-
 /*
  * The i386 can't do page protection for execute, and considers that the same
  * are read.
diff --git a/arch/unicore32/include/asm/pgtable.h b/arch/unicore32/include/asm/pgtable.h
index 68b2f297ac9..233c25880df 100644
--- a/arch/unicore32/include/asm/pgtable.h
+++ b/arch/unicore32/include/asm/pgtable.h
@@ -303,13 +303,6 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
 
 #include <asm-generic/pgtable.h>
 
-/*
- * remap a physical page `pfn' of size `size' with page protection `prot'
- * into virtual address `from'
- */
-#define io_remap_pfn_range(vma, from, pfn, size, prot)	\
-		remap_pfn_range(vma, from, pfn, size, prot)
-
 #define pgtable_cache_init() do { } while (0)
 
 #endif /* !__ASSEMBLY__ */
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 1e672234c4f..5b0818bc896 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -506,9 +506,6 @@ 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)
 {
diff --git a/arch/xtensa/include/asm/pgtable.h b/arch/xtensa/include/asm/pgtable.h
index d7546c94da5..8f017eb309b 100644
--- a/arch/xtensa/include/asm/pgtable.h
+++ b/arch/xtensa/include/asm/pgtable.h
@@ -393,14 +393,6 @@ ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 extern  void update_mmu_cache(struct vm_area_struct * vma,
 			      unsigned long address, pte_t *ptep);
 
-/*
- * remap a physical page `pfn' of size `size' with page protection `prot'
- * into virtual address `from'
- */
-
-#define io_remap_pfn_range(vma,from,pfn,size,prot) \
-	remap_pfn_range(vma, from, pfn, size, prot)
-
 typedef pte_t *pte_addr_t;
 
 #endif /* !defined (__ASSEMBLY__) */
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index a59ff51b016..b1836987d50 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -692,4 +692,8 @@ static inline pmd_t pmd_mknuma(pmd_t pmd)
 
 #endif /* !__ASSEMBLY__ */
 
+#ifndef io_remap_pfn_range
+#define io_remap_pfn_range remap_pfn_range
+#endif
+
 #endif /* _ASM_GENERIC_PGTABLE_H */