Hello Herbert, CRYPTO_ALG_ASYNC is heavily used like: crypto_alloc_shash(hash_alg, 0, CRYPTO_ALG_ASYNC); or .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC; .cra_flags = CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_ASYNC, I see that only place where it is tested is in ablockcipher.c:crypto_default_geniv() What is actually meaning of that? and setting it for hash?? Thanks, Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html