-static int crypto_ctr_setkey(struct crypto_tfm *parent, const u8 *key,
- unsigned int keylen)
-{
- struct crypto_ctr_ctx *ctx = crypto_tfm_ctx(parent);
- struct crypto_cipher *child = ctx->child;
- int err;
-
- crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
- crypto_cipher_set_flags(child, crypto_tfm_get_flags(parent) &
- CRYPTO_TFM_REQ_MASK);
- err = crypto_cipher_setkey(child, key, keylen);
- crypto_tfm_set_flags(parent, crypto_cipher_get_flags(child) &
- CRYPTO_TFM_RES_MASK);
-
- return err;
-}
-
-static void crypto_ctr_crypt_final(struct blkcipher_walk *walk,