--- zzzz-none-000/linux-4.4.60/include/crypto/internal/hash.h	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-7490-727/linux-4.4.60/include/crypto/internal/hash.h	2021-02-04 17:41:59.000000000 +0000
@@ -83,6 +83,14 @@
 			    struct ahash_instance *inst);
 void ahash_free_instance(struct crypto_instance *inst);
 
+int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
+		    unsigned int keylen);
+
+static inline bool crypto_shash_alg_has_setkey(struct shash_alg *alg)
+{
+	return alg->setkey != shash_no_setkey;
+}
+
 int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn,
 			    struct hash_alg_common *alg,
 			    struct crypto_instance *inst);