int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);
int crypto_hash_walk_first(struct ahash_request *req,
struct crypto_hash_walk *walk);
+int crypto_hash_walk_first_compat(struct hash_desc *hdesc,
+ struct crypto_hash_walk *walk,
+ struct scatterlist *sg, unsigned int len);
int crypto_register_shash(struct shash_alg *alg);
int crypto_unregister_shash(struct shash_alg *alg);