--- zzzz-none-000/linux-3.10.107/arch/blackfin/include/asm/pgtable.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/blackfin/include/asm/pgtable.h	2021-02-04 17:41:59.000000000 +0000
@@ -45,11 +45,6 @@
 #define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x)	((pte_t) { (x).val })
 
-static inline int pte_file(pte_t pte)
-{
-	return 0;
-}
-
 #define set_pte(pteptr, pteval) (*(pteptr) = pteval)
 #define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval)
 
@@ -88,7 +83,6 @@
  * 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...