diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 883f16f..1ecd3e5 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -549,8 +549,7 @@
 	return ret;
 }
 
-static int
-__chsc_do_secm(struct channel_subsystem *css, int enable, void *page)
+int __chsc_do_secm(struct channel_subsystem *css, int enable, void *page)
 {
 	struct {
 		struct chsc_header request;