diff --git a/sys/arm/arm/machdep.c b/sys/arm/arm/machdep.c
--- a/sys/arm/arm/machdep.c
+++ b/sys/arm/arm/machdep.c
@@ -374,7 +374,7 @@
 /*
  * Initialize proc0
  */
-void
+static void
 init_proc0(vm_offset_t kstack)
 {
 	proc_linkup0(&proc0, &thread0);
diff --git a/sys/arm/include/machdep.h b/sys/arm/include/machdep.h
--- a/sys/arm/include/machdep.h
+++ b/sys/arm/include/machdep.h
@@ -15,7 +15,6 @@
 
 /* misc prototypes used by the many arm machdeps */
 struct trapframe;
-void init_proc0(vm_offset_t kstack);
 void halt(void);
 void abort_handler(struct trapframe *, int );
 void set_stackptrs(int cpu);