diff --git a/0043-kpatch-build-Remove-duplicate-functions.patch b/0043-kpatch-build-Remove-duplicate-functions.patch
new file mode 100644
index 0000000..f071432
--- /dev/null
+++ b/0043-kpatch-build-Remove-duplicate-functions.patch
@@ -0,0 +1,43 @@
+From 81a48ca6a060cf006cf9eec309e726c4333a9d46 Mon Sep 17 00:00:00 2001
+From: tangbin <tangbin_yewu@cmss.chinamobile.com>
+Date: Tue, 6 Sep 2022 11:46:41 -0400
+Subject: [PATCH] kpatch-build: Remove duplicate functions
+
+We find that there are duplicate functions of "use_klp_arch()" &
+"rhel_kernel_version_gte", and one of them are useless, so remove
+them.
+
+Signed-off-by: tangbin <tangbin_yewu@cmss.chinamobile.com>
+---
+ kpatch-build/kpatch-build | 15 ---------------
+ 1 file changed, 15 deletions(-)
+
+diff --git a/kpatch-build/kpatch-build b/kpatch-build/kpatch-build
+index dc5f5a5..6a0645a 100755
+--- a/kpatch-build/kpatch-build
++++ b/kpatch-build/kpatch-build
+@@ -198,21 +198,6 @@ rhel_kernel_version_gte() {
+         [  "${ARCHVERSION}" = "$(echo -e "${ARCHVERSION}\\n$1" | sort -rV | head -n1)" ]
+ }
+ 
+-# klp.arch relocations were supported prior to v5.8
+-# and prior to 4.18.0-240.el8
+-use_klp_arch()
+-{
+-	if kernel_is_rhel; then
+-		! rhel_kernel_version_gte 4.18.0-240.el8
+-	else
+-		! kernel_version_gte 5.8.0
+-	fi
+-}
+-
+-rhel_kernel_version_gte() {
+-        [  "${ARCHVERSION}" = "$(echo -e "${ARCHVERSION}\\n$1" | sort -rV | head -n1)" ]
+-}
+-
+ # klp.arch relocations were supported prior to v5.8
+ # and prior to 4.18.0-284.el8
+ use_klp_arch()
+-- 
+2.18.4
+
diff --git a/kpatch.spec b/kpatch.spec
index 606bda6..0bafab2 100644
--- a/kpatch.spec
+++ b/kpatch.spec
@@ -1,7 +1,7 @@
 Name:           kpatch
 Epoch:          1
 Version:        0.9.5
-Release:        12
+Release:        13
 Summary:        A Linux dynamic kernel patching infrastructure
 
 License:        GPLv2
@@ -55,6 +55,7 @@ Patch0039:0039-create-diff-object-ignore-change-of-certain.patch
 Patch0040:0040-create-diff-object-allow-__jump_table-section.patch
 Patch0041:0041-livepatch-patch-hook-fix-kpatch-build-error-which-do.patch
 Patch0042:0042-kpatch-build-fix-loading-error-in-aarch64.patch
+Patch0043:0043-kpatch-build-Remove-duplicate-functions.patch
 
 BuildRequires:  gcc elfutils-libelf-devel kernel-devel git
 Requires:       bc make gcc patch bison flex openssl-devel
@@ -115,6 +116,12 @@ popd
 %{_mandir}/man1/*.1.gz
 
 %changelog
+* Tue Sep 6 2022 Tang Bin <tangbin_yewu@cmss.chinamobile.com> -1:0.9.5-13
+- Type:clean code
+- ID:NA
+- SUG:NA
+- DESC:kpatch-build: Remove duplicate functions
+
 * Tue Sep 6 2022 Tang Bin <tangbin_yewu@cmss.chinamobile.com> -1:0.9.5-12
 - Type:bugfix
 - ID:NA