diff --git a/arch/m68k/mm/kmap_no.c b/arch/m68k/mm/kmap_no.c
index ece8d5a..38b2abe 100644
--- a/arch/m68k/mm/kmap_no.c
+++ b/arch/m68k/mm/kmap_no.c
@@ -35,11 +35,3 @@
 {
 }
 
-/*
- * Set new cache mode for some kernel address space.
- * The caller must push data for that range itself, if such data may already
- * be in the cache.
- */
-void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
-{
-}