crypto: sha-mb - mark Multi buffer SHA1 helper cipher

Flag all Multi buffer SHA1 helper ciphers as internal ciphers
to prevent them from being called by normal users.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

arch/x86/crypto/sha-mb/sha1_mb.c

@@ -694,7 +694,8 @@ static struct shash_alg sha1_mb_shash_alg = {
 		 * use ASYNC flag as some buffers in multi-buffer
 		 * algo may not have completed before hashing thread sleep
 		 */
-		.cra_flags	 = CRYPTO_ALG_TYPE_SHASH | CRYPTO_ALG_ASYNC,
+		.cra_flags	 = CRYPTO_ALG_TYPE_SHASH | CRYPTO_ALG_ASYNC |
+				   CRYPTO_ALG_INTERNAL,
 		.cra_blocksize	 = SHA1_BLOCK_SIZE,
 		.cra_module	 = THIS_MODULE,
 		.cra_list	 = LIST_HEAD_INIT(sha1_mb_shash_alg.base.cra_list),
@@ -770,7 +771,9 @@ static int sha1_mb_async_init_tfm(struct crypto_tfm *tfm)
 	struct sha1_mb_ctx *ctx = crypto_tfm_ctx(tfm);
 	struct mcryptd_hash_ctx *mctx;
 
-	mcryptd_tfm = mcryptd_alloc_ahash("__intel_sha1-mb", 0, 0);
+	mcryptd_tfm = mcryptd_alloc_ahash("__intel_sha1-mb",
+					  CRYPTO_ALG_INTERNAL,
+					  CRYPTO_ALG_INTERNAL);
 	if (IS_ERR(mcryptd_tfm))
 		return PTR_ERR(mcryptd_tfm);
 	mctx = crypto_ahash_ctx(&mcryptd_tfm->base);