diff --git a/0001-digest-delete-some-duplicate-code.patch b/0001-digest-delete-some-duplicate-code.patch
new file mode 100644
index 0000000..1c95acc
--- /dev/null
+++ b/0001-digest-delete-some-duplicate-code.patch
@@ -0,0 +1,55 @@
+From eba09f6a2eb20bf431822718fa752a68b6d682c5 Mon Sep 17 00:00:00 2001
+From: Kai Ye <yekai13@huawei.com>
+Date: Thu, 9 Dec 2021 11:17:40 +0800
+Subject: [PATCH] digest: delete some duplicate code
+
+digest task not need to allocate session twice for one stream.
+init->update->final as one stream.
+
+Signed-off-by: Kai Ye <yekai13@huawei.com>
+---
+ src/uadk_digest.c | 14 +++++---------
+ 1 file changed, 5 insertions(+), 9 deletions(-)
+
+diff --git a/src/uadk_digest.c b/src/uadk_digest.c
+index 9fdec91..db33d16 100644
+--- a/src/uadk_digest.c
++++ b/src/uadk_digest.c
+@@ -607,10 +607,6 @@ static int uadk_e_digest_final(EVP_MD_CTX *ctx, unsigned char *digest)
+ 	int ret = 1;
+ 	struct async_op op;
+ 
+-	priv->sess = wd_digest_alloc_sess(&priv->setup);
+-	if (unlikely(!priv->sess))
+-		return 0;
+-
+ 	priv->req.in = priv->data;
+ 	priv->req.out = digest;
+ 	priv->req.in_bytes = priv->tail;
+@@ -639,11 +635,6 @@ static int uadk_e_digest_final(EVP_MD_CTX *ctx, unsigned char *digest)
+ 			goto clear;
+ 	}
+ 
+-	if (priv->sess) {
+-		wd_digest_free_sess(priv->sess);
+-		priv->sess = 0;
+-	}
+-
+ 	return 1;
+ 
+ sync_err:
+@@ -665,6 +656,11 @@ static int uadk_e_digest_cleanup(EVP_MD_CTX *ctx)
+ 	if (!priv || priv->copy)
+ 		return 1;
+ 
++	if (priv->sess) {
++		wd_digest_free_sess(priv->sess);
++		priv->sess = 0;
++	}
++
+ 	if (priv && priv->data)
+ 		OPENSSL_free(priv->data);
+ 
+-- 
+2.24.4
+
diff --git a/uadk_engine.spec b/uadk_engine.spec
index 9d84a38..2d822c8 100644
--- a/uadk_engine.spec
+++ b/uadk_engine.spec
@@ -3,7 +3,7 @@
 Name:          uadk_engine
 Summary:       UADK Accelerator Engine
 Version:       1.0.0
-Release:       1
+Release:       2
 License:       Apache-2.0
 Source:        %{name}-%{version}.tar.gz
 ExclusiveOS:   linux
@@ -16,6 +16,8 @@ BuildRequires: openssl-devel sed autoconf automake libtool
 Requires:      openssl
 ExclusiveArch: aarch64
 
+Patch0001:     0001-digest-delete-some-duplicate-code.patch
+
 %description
 This package contains the UADK Accelerator Engine
 
@@ -64,5 +66,8 @@ fi
 /sbin/ldconfig
 
 %changelog
+* Fri Dec 10 2021 linwenkai <linwenkai6@hisilicon.com> 1.0.0-2
+- Delete digest duplicate code
+
 * Fri Dec 10 2021 linwenkai <linwenkai6@hisilicon.com> 1.0.0-1
 - First Spec Version Include uadk_engine Code