diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 9a545ebc3661..52608dd0cdde 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -625,6 +625,7 @@ out:
 	put_task_stack(p);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(get_wchan);
 
 unsigned long arch_align_stack(unsigned long sp)
 {