diff --git a/arch/m68k/include/asm/pgtable_no.h b/arch/m68k/include/asm/pgtable_no.h
index c527fc2ecf82..11859b86b1f9 100644
--- a/arch/m68k/include/asm/pgtable_no.h
+++ b/arch/m68k/include/asm/pgtable_no.h
@@ -45,11 +45,6 @@ static inline int pte_file(pte_t pte) { return 0; }
  */
 #define ZERO_PAGE(vaddr)	(virt_to_page(0))
 
-/*
- * These would be in other places but having them here reduces the diffs.
- */
-extern unsigned int kobjsize(const void *objp);
-
 /*
  * No page table caches to initialise.
  */