diff --git a/arch/metag/kernel/smp.c b/arch/metag/kernel/smp.c
index f74008b6da07..f006d2276f40 100644
--- a/arch/metag/kernel/smp.c
+++ b/arch/metag/kernel/smp.c
@@ -68,7 +68,7 @@ static DECLARE_COMPLETION(cpu_running);
 /*
  * "thread" is assumed to be a valid Meta hardware thread ID.
  */
-int boot_secondary(unsigned int thread, struct task_struct *idle)
+static int boot_secondary(unsigned int thread, struct task_struct *idle)
 {
 	u32 val;