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.
  */
diff --git a/arch/m68k/include/asm/virtconvert.h b/arch/m68k/include/asm/virtconvert.h
index f35229b8651d..b8a82fb1cef8 100644
--- a/arch/m68k/include/asm/virtconvert.h
+++ b/arch/m68k/include/asm/virtconvert.h
@@ -26,16 +26,12 @@ static inline void *phys_to_virt(unsigned long address)
 }
 
 /* Permanent address of a page. */
-#ifdef CONFIG_MMU
-#ifdef CONFIG_SINGLE_MEMORY_CHUNK
+#if defined(CONFIG_MMU) && defined(CONFIG_SINGLE_MEMORY_CHUNK)
 #define page_to_phys(page) \
 	__pa(PAGE_OFFSET + (((page) - pg_data_map[0].node_mem_map) << PAGE_SHIFT))
 #else
 #define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
 #endif
-#else
-#define page_to_phys(page)	(((page) - mem_map) << PAGE_SHIFT)
-#endif
 
 /*
  * IO bus memory addresses are 1:1 with the physical address,