diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 6ce5a698fcb7..013e4563c953 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -598,6 +598,7 @@ unsigned long __get_wchan(struct task_struct *p)
 
 	return wchan_info.pc;
 }
+EXPORT_SYMBOL_GPL(get_wchan);
 
 unsigned long arch_align_stack(unsigned long sp)
 {