u32 expkey[SERPENT_EXPKEY_WORDS];
};
+int __serpent_setkey(struct serpent_ctx *ctx, const u8 *key,
+ unsigned int keylen);
int serpent_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen);
void __serpent_encrypt(struct serpent_ctx *ctx, u8 *dst, const u8 *src);