diff --git a/Fix-defaut-function-compare-error.patch b/Fix-defaut-function-compare-error.patch
new file mode 100644
index 0000000000000000000000000000000000000000..ad54c9b4f22eb4b4f046a7ae25978d8e81434a95
--- /dev/null
+++ b/Fix-defaut-function-compare-error.patch
@@ -0,0 +1,28 @@
+From cc4ecbe236914f9b391ecf3815008547472632f8 Mon Sep 17 00:00:00 2001
+From: "Richard W.M. Jones" <rjones@redhat.com>
+Date: Tue, 2 Mar 2021 10:39:15 +0000
+Subject: [PATCH] mlstdutils/std_utils.ml: Fix for OCaml 4.12.
+
+We were using a default function from somewhere called "compare"
+instead of the actual function (Pervasives.compare / Stdlib.compare).
+Since the wrong default function was used it had a different type from
+what we expected:
+File "std_utils.ml", line 312, characters 36-37:
+312 |       | (y, y') :: _ when cmp x y = 0 -> y'
+
+Error: This expression has type int but an expression was expected of type
+         'weak1 list -> int
+
+diff --git a/common/mlstdutils/std_utils.ml b/common/mlstdutils/std_utils.ml
+index 70156d1..3cacf36 100644
+--- a/common/mlstdutils/std_utils.ml
++++ b/common/mlstdutils/std_utils.ml
+@@ -305,7 +305,7 @@ module List = struct
+       | x::xs, y::ys, z::zs -> (x, y, z) :: combine3 xs ys zs
+       | _ -> invalid_arg "combine3"
+ 
+-    let rec assoc_lbl ?(cmp = compare) ~default x = function
++    let rec assoc_lbl ?(cmp = Pervasives.compare) ~default x = function
+       | [] -> default
+       | (y, y') :: _ when cmp x y = 0 -> y'
+       | _ :: ys -> assoc_lbl ~cmp ~default x ys
diff --git a/Fix-verbose-error.patch b/Fix-verbose-error.patch
new file mode 100644
index 0000000000000000000000000000000000000000..846a4649b15d4fe29162e9c49c42d39eb490e38e
--- /dev/null
+++ b/Fix-verbose-error.patch
@@ -0,0 +1,39 @@
+From 1941593585574849dd72c458535cd80b4d858266 Mon Sep 17 00:00:00 2001
+From: "Richard W.M. Jones" <rjones@redhat.com>
+Date: Fri, 10 Dec 2021 10:20:34 +0000
+Subject: [PATCH] Disable OCaml warning 6 completely
+
+Warning 6 "labels-omitted" is not useful.  It's fine to omit labels on
+positional arguments.
+
+Example:
+
+  File "perl_edit.ml", line 30, characters 2-13:
+  30 |   c_edit_file (verbose ()) g (Guestfs.c_pointer g) file expr
+         ^^^^^^^^^^^
+  Warning 6 [labels-omitted]: label verbose was omitted in the application of this function.
+
+The function is specified as:
+
+  external c_edit_file : verbose:bool -> Guestfs.t -> int64 -> string -> string -> unit
+
+The complaint is that the verbose: label has been omitted from the
+first argument when the function is called, but IMO this is a
+stylistic thing, not a bug.
+
+(cherry picked from
+guestfs-tools commit 577f7aee4b1c720f4c4826115b49a0c3870b149e)
+
+diff --git a/m4/guestfs-ocaml.m4 b/m4/guestfs-ocaml.m4
+index 3c504ce..5604574 100644
+--- a/m4/guestfs-ocaml.m4
++++ b/m4/guestfs-ocaml.m4
+@@ -222,7 +222,7 @@ AS_IF([test "x$have_Hivex_OPEN_UNSAFE" = "xno"],[
+ AC_SUBST([HIVEX_OPEN_UNSAFE_FLAG])
+ 
+ dnl Flags we want to pass to every OCaml compiler call.
+-OCAML_WARN_ERROR="-warn-error CDEFLMPSUVYZX+52-3"
++OCAML_WARN_ERROR="-warn-error CDEFLMPSUVYZX+52-3 -w -6"
+ AC_SUBST([OCAML_WARN_ERROR])
+ OCAML_FLAGS="-g -annot $safe_string_option"
+ AC_SUBST([OCAML_FLAGS])
diff --git a/libguestfs.spec b/libguestfs.spec
index 9079172dbc5f8bbc4138c5f0d9713d1bbceb8a4e..cf9da8979901a3433a6771cd305a67ea9345226e 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -4,7 +4,7 @@
 
 Name:          libguestfs
 Version:       1.40.2
-Release:       15
+Release:       16
 Epoch:         1
 Summary:       A set of tools for accessing and modifying virtual machine (VM) disk images
 License:       LGPLv2+
@@ -16,6 +16,8 @@ Patch0000:     0001-libguestfs-PYTHON_LIBS-is-not-set-in-Python-3.8.patch
 Patch0001:     0002-fts-remove-NOSTAT_LEAF_OPTIMIZATION.patch
 Patch0002:     0003-port-to-php-8.0.0.patch
 Patch0003:     fix-not-striped.patch
+Patch0004:     Fix-defaut-function-compare-error.patch
+Patch0005:     Fix-verbose-error.patch
 
 BuildRequires: gcc-c++, rpcgen, libtirpc-devel, supermin-devel >= 5.1.18, hivex-devel >= 1.2.7-7, ocaml-hivex-devel, perl(Pod::Simple), perl(Pod::Man)
 BuildRequires: /usr/bin/pod2text, po4a, augeas-devel >= 1.7.0, readline-devel, genisoimage, libxml2-devel, createrepo, glibc-static, libselinux-utils
@@ -368,6 +370,9 @@ install -m 0644 utils/boot-benchmark/boot-benchmark.1 $RPM_BUILD_ROOT%{_mandir}/
 %exclude %{_mandir}/man1/virt-tar.1*
 
 %changelog
+* Mon Jan 24 2022 xu_ping <xuping33@huawei.com> - 1:1.40.2-16
+- Use actual function Pervasives.compare to instead of default compare and omit the labels on positional arguments.
+
 * Thu Sep 09 2021 sunguoshuai <sunguoshuai@huawei.com> - 1:1.40.2-15
 - Fix not striped in some binaries