diff --git a/0007-fix-style-and-remove-unused-code.patch b/0007-fix-style-and-remove-unused-code.patch
new file mode 100644
index 0000000000000000000000000000000000000000..e80a7bd2cd258d43db2fb4279d66713c90831ab8
--- /dev/null
+++ b/0007-fix-style-and-remove-unused-code.patch
@@ -0,0 +1,49 @@
+From 3ee04c5ceae6535e922521ed940411a0318fdd3b Mon Sep 17 00:00:00 2001
+From: lingbin <lingbinlb@gmail.com>
+Date: Mon, 4 Sep 2017 16:10:38 +0800
+Subject: [PATCH] fix style and remove unused code
+
+---
+ util/coding.cc | 10 ----------
+ util/coding.h  |  4 ++--
+ 2 files changed, 2 insertions(+), 12 deletions(-)
+
+diff --git a/util/coding.cc b/util/coding.cc
+index 21e3186..c37b24a 100644
+--- a/util/coding.cc
++++ b/util/coding.cc
+@@ -169,16 +169,6 @@ bool GetVarint64(Slice* input, uint64_t* value) {
+   }
+ }
+ 
+-const char* GetLengthPrefixedSlice(const char* p, const char* limit,
+-                                   Slice* result) {
+-  uint32_t len;
+-  p = GetVarint32Ptr(p, limit, &len);
+-  if (p == NULL) return NULL;
+-  if (p + len > limit) return NULL;
+-  *result = Slice(p, len);
+-  return p + len;
+-}
+-
+ bool GetLengthPrefixedSlice(Slice* input, Slice* result) {
+   uint32_t len;
+   if (GetVarint32(input, &len) &&
+diff --git a/util/coding.h b/util/coding.h
+index 3993c4a..8582d90 100644
+--- a/util/coding.h
++++ b/util/coding.h
+@@ -35,8 +35,8 @@ extern bool GetLengthPrefixedSlice(Slice* input, Slice* result);
+ // in *v and return a pointer just past the parsed value, or return
+ // NULL on error.  These routines only look at bytes in the range
+ // [p..limit-1]
+-extern const char* GetVarint32Ptr(const char* p,const char* limit, uint32_t* v);
+-extern const char* GetVarint64Ptr(const char* p,const char* limit, uint64_t* v);
++extern const char* GetVarint32Ptr(const char* p, const char* limit, uint32_t* v);
++extern const char* GetVarint64Ptr(const char* p, const char* limit, uint64_t* v);
+ 
+ // Returns the length of the varint32 or varint64 encoding of "v"
+ extern int VarintLength(uint64_t v);
+-- 
+2.40.0.windows.1
+
diff --git a/leveldb.spec b/leveldb.spec
index 55dd9542249f62b8c46ed97c8b0ea7d18e28dc44..bb325d6cb4d7b9a30b2b7d88cec27327cf213046 100644
--- a/leveldb.spec
+++ b/leveldb.spec
@@ -1,6 +1,6 @@
 Name:           leveldb
 Version:        1.20
-Release:        6
+Release:        7
 Summary:        A key/value database library
 License:        BSD
 URL:            https://github.com/google/leveldb
@@ -12,6 +12,7 @@ Patch0003:      0003-allow-Get-calls-to-avoid-copies-into-std-string.patch
 Patch0004:      0004-bloom_test-failure-on-big-endian-archs.patch
 Patch0005:      0005-broken-db-fix-assertion-in-leveldb-InternalKey-Encod.patch
 Patch0006:      0006-leveldb-Fix-alignment-code-in-SSE4.2-optimized-CRC32.patch
+Patch0007:      0007-fix-style-and-remove-unused-code.patch
 
 BuildRequires:  make gcc-c++ snappy-devel
 
@@ -73,6 +74,9 @@ make -j1 check
 %{_libdir}/pkgconfig/leveldb.pc
 
 %changelog
+* Fri Jun 30 2023 yaoguangzhong <yaoguangzhong@xfusion.com> -  1.20-7
+- fix style and remove unused code
+
 * Tue Apr 25 2023 yaoguangzhong <yaoguangzhong@xfusion.com> -  1.20-6
 - fix alignment code in SSE4.2-optimized CRC32C