libipw_unregister_crypto_ops
int libipw_unregister_crypto_ops(const struct libipw_crypto_ops *ops);
EXPORT_SYMBOL(libipw_unregister_crypto_ops);
libipw_unregister_crypto_ops(&libipw_crypt_null);
libipw_unregister_crypto_ops(&libipw_crypt_ccmp);
libipw_unregister_crypto_ops(&libipw_crypt_tkip);
libipw_unregister_crypto_ops(&libipw_crypt_wep);