static int async_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
			unsigned int keylen)
{
	return setkey(crypto_ablkcipher_tfm(tfm), key, keylen);
}
static int async_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
			unsigned int keylen)
{
	return setkey(crypto_ablkcipher_tfm(tfm), key, keylen);
}