CRYPT_KEY_MAC_SIZE_SET
if (!test_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags))
set_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags);
num_feature_args += test_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags);
if (test_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags))