diff --git a/arch/um/kernel/process_kern.c b/arch/um/kernel/process_kern.c
index 1d719d5b4bb9..7a943696f950 100644
--- a/arch/um/kernel/process_kern.c
+++ b/arch/um/kernel/process_kern.c
@@ -161,10 +161,6 @@ void *get_current(void)
 	return(current);
 }
 
-void prepare_to_copy(struct task_struct *tsk)
-{
-}
-
 int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
 		unsigned long stack_top, struct task_struct * p, 
 		struct pt_regs *regs)
diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h
index 038ba6fc88b8..4d9404989b5a 100644
--- a/include/asm-um/processor-generic.h
+++ b/include/asm-um/processor-generic.h
@@ -89,7 +89,11 @@ extern struct task_struct *alloc_task_struct(void);
 extern void release_thread(struct task_struct *);
 extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
 extern void dump_thread(struct pt_regs *regs, struct user *u);
-extern void prepare_to_copy(struct task_struct *tsk);
+
+static inline void prepare_to_copy(struct task_struct *tsk)
+{
+}
+
 
 extern unsigned long thread_saved_pc(struct task_struct *t);