Fix compile error with gcc 12.3

Signed-off-by: Weifeng Su <suweifeng1@huawei.com>

0040-initialized-status-variable-before-use.patch

@@ -0,0 +1,41 @@
+From a8d21b9b550dde7d3e7ffc0cd1171528a136165f Mon Sep 17 00:00:00 2001
+From: Sebastian Brzezinka <sebastian.brzezinka@intel.com>
+Date: Wed, 18 Jan 2023 19:44:45 +0100
+Subject: [PATCH] =?UTF-8?q?lib/ioat:=20initialized=20=E2=80=98status?=
+ =?UTF-8?q?=E2=80=99=20variable=20before=20use?=
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This patch fix `gcc-12` warning: #2829
+
+```
+warning: ‘status’ may be used uninitialized [-Wmaybe-uninitialized]
+ioat.c:360:18: note: ‘status’ was declared here
+  360 |         uint64_t status;
+      |                  ^~~~~~
+```
+
+Signed-off-by: Sebastian Brzezinka <sebastian.brzezinka@intel.com>
+Change-Id: I8d010256e51cf6f1b9047d054773cb85d435ccf9
+Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16339
+Reviewed-by: Jim Harris <james.r.harris@intel.com>
+Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
+Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
+---
+ lib/ioat/ioat.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/ioat/ioat.c b/lib/ioat/ioat.c
+index 479f73dd875..949afea850a 100644
+--- a/lib/ioat/ioat.c
++++ b/lib/ioat/ioat.c
+@@ -357,7 +357,7 @@ static int
+ ioat_channel_start(struct spdk_ioat_chan *ioat)
+ {
+ 	uint8_t xfercap, version;
+-	uint64_t status;
++	uint64_t status = 0;
+ 	int i, num_descriptors;
+ 	uint64_t comp_update_bus_addr = 0;
+ 	uint64_t phys_addr;

spdk.spec

@@ -4,7 +4,7 @@
 
 Name: spdk
 Version: 21.01.1
-Release: 14
+Release: 15
 Summary: Set of libraries and utilities for high performance user-mode storage
 License: BSD and MIT
 URL: http://spdk.io
@@ -48,6 +48,7 @@ Patch36: 0036-scripts-nvmf_perf-fix-pylint-E1111-error-assignment-.patch
 Patch37: 0037-scripts-nvmf_perf-check-extra_params-key-berofe-acce.patch
 Patch38: 0038-nvme-rdma-Only-wait-for-the-RDMA-event-if-spdk_rdma_.patch
 Patch39: 0039-Cleanup-Fix-boolean-arg-in-fio-plugin.patch
+Patch40: 0040-initialized-status-variable-before-use.patch
 
 %define package_version %{version}-%{release}
 
@@ -224,6 +225,9 @@ mv doc/output/html/ %{install_docdir}
 
 
 %changelog
+* Sat Aug 26 2023 Weifeng Su <suweifeng1@huawei.com> - 21.01.1-15
+- backport patch to fix gcc-12 warning
+
 * Tue May 30 2023 Jia Chao <jiac13@chinaunicom.cn> - 21.01.1-14
 - Fix: tools do not need require %{?_isa} package for it's noarch.