--- zzzz-none-000/linux-3.10.107/arch/x86/include/asm/pgtable_32.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/x86/include/asm/pgtable_32.h	2021-02-04 17:41:59.000000000 +0000
@@ -32,9 +32,6 @@
 static inline void check_pgt_cache(void) { }
 void paging_init(void);
 
-extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
-
-
 /*
  * Define this if things work differently on an i386 and an i486:
  * it will (on an i486) warn about kernel memory accesses that are