diff --git a/kernel/core_hook.c b/kernel/core_hook.c
index 88728768..6f04dc16 100644
--- a/kernel/core_hook.c
+++ b/kernel/core_hook.c
@@ -690,7 +690,7 @@ static int ksu_inode_permission(struct inode *inode, int mask)
 #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0) ||	\
 	defined(CONFIG_IS_HW_HISI) ||	\
 	defined(CONFIG_KSU_ALLOWLIST_WORKAROUND)
-static int ksu_key_permission(key_ref_t key_ref, const struct cred *cred,
+int ksu_key_permission(key_ref_t key_ref, const struct cred *cred,
 			      unsigned perm)
 {
 	if (init_session_keyring != NULL) {