--- zzzz-none-000/linux-3.10.107/security/keys/encrypted-keys/encrypted.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/security/keys/encrypted-keys/encrypted.h	2021-02-04 17:41:59.000000000 +0000
@@ -5,10 +5,10 @@
 #if defined(CONFIG_TRUSTED_KEYS) || \
   (defined(CONFIG_TRUSTED_KEYS_MODULE) && defined(CONFIG_ENCRYPTED_KEYS_MODULE))
 extern struct key *request_trusted_key(const char *trusted_desc,
-				       u8 **master_key, size_t *master_keylen);
+				       const u8 **master_key, size_t *master_keylen);
 #else
 static inline struct key *request_trusted_key(const char *trusted_desc,
-					      u8 **master_key,
+					      const u8 **master_key,
 					      size_t *master_keylen)
 {
 	return ERR_PTR(-EOPNOTSUPP);