-#else /* HAVE_STRUCT_SHASH_ALG */
-#ifdef HAVE_DIGEST_SETKEY_FLAGS
-static int crc32_digest_setkey(struct crypto_tfm *tfm, const u8 *key,
- unsigned int keylen, unsigned int *flags)
-#else
-static int crc32_digest_setkey(struct crypto_tfm *tfm, const u8 *key,
- unsigned int keylen)
-#endif
-{
- u32 *mctx = crypto_tfm_ctx(tfm);
-
- if (keylen != sizeof(u32)) {
- tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
- }
- *mctx = le32_to_cpup((__le32 *)key);
- return 0;
-}
-
-static void crc32_digest_init(struct crypto_tfm *tfm)
-{
- u32 *mctx = crypto_tfm_ctx(tfm);
-
- *mctx = 0;
-
-}
-static void crc32_digest_update(struct crypto_tfm *tfm, const u8 *data,
- unsigned int len)
-{
- u32 *crcp = crypto_tfm_ctx(tfm);
-
- *crcp = __crc32_le(*crcp, data, len);
-}
-
-static void crc32_digest_final(struct crypto_tfm *tfm, u8 *out)
-{
- u32 *crcp = crypto_tfm_ctx(tfm);
-
- *(__le32 *)out = cpu_to_le32p(crcp);
-}
-
-static struct crypto_alg alg = {
- .cra_name = "crc32",
- .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
- .cra_driver_name = "crc32-table",
- .cra_priority = 100,
- .cra_blocksize = CHKSUM_BLOCK_SIZE,
- .cra_ctxsize = sizeof(u32),
- .cra_module = THIS_MODULE,
- .cra_init = crc32_cra_init,
- .cra_list = LIST_HEAD_INIT(alg.cra_list),
- .cra_u = {
- .digest = {
- .dia_digestsize = CHKSUM_DIGEST_SIZE,
- .dia_setkey = crc32_digest_setkey,
- .dia_init = crc32_digest_init,
- .dia_update = crc32_digest_update,
- .dia_final = crc32_digest_final
- }
- }
-};
-#endif /* HAVE_STRUCT_SHASH_ALG */