diff --git a/arch/m68k/include/asm/pgtable.h b/arch/m68k/include/asm/pgtable.h
index ad15d655a9bf..27525c6a12fd 100644
--- a/arch/m68k/include/asm/pgtable.h
+++ b/arch/m68k/include/asm/pgtable.h
@@ -1,6 +1,15 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __M68K_PGTABLE_H
+#define __M68K_PGTABLE_H
+
 #ifdef __uClinux__
 #include <asm/pgtable_no.h>
 #else
 #include <asm/pgtable_mm.h>
 #endif
+
+#ifndef __ASSEMBLY__
+extern void paging_init(void);
+#endif
+
+#endif /* __M68K_PGTABLE_H */
diff --git a/arch/m68k/include/asm/pgtable_no.h b/arch/m68k/include/asm/pgtable_no.h
index fc044df52b96..1a86c15b9008 100644
--- a/arch/m68k/include/asm/pgtable_no.h
+++ b/arch/m68k/include/asm/pgtable_no.h
@@ -28,7 +28,6 @@
 #define PAGE_READONLY	__pgprot(0)
 #define PAGE_KERNEL	__pgprot(0)
 
-extern void paging_init(void);
 #define swapper_pg_dir ((pgd_t *) 0)
 
 /*
diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c
index 6f1ae01f322c..10310b04f77d 100644
--- a/arch/m68k/kernel/setup_mm.c
+++ b/arch/m68k/kernel/setup_mm.c
@@ -107,8 +107,6 @@ EXPORT_SYMBOL(isa_sex);
 
 #define MASK_256K 0xfffc0000
 
-extern void paging_init(void);
-
 static void __init m68k_parse_bootinfo(const struct bi_record *record)
 {
 	const struct bi_record *first_record = record;