af_alg_unregister_type
EXPORT_SYMBOL_GPL(af_alg_unregister_type);
int err = af_alg_unregister_type(&algif_type_aead);
int err = af_alg_unregister_type(&algif_type_hash);
int err = af_alg_unregister_type(&algif_type_rng);
int err = af_alg_unregister_type(&algif_type_skcipher);
int af_alg_unregister_type(const struct af_alg_type *type);