|WARNING| pw159636 [PATCH] [v3] net: optimize raw checksum computati

[dpdklab@iol.unh.edu]

Test-Label: iol-unit-amd64-testing
Test-Status: WARNING
http://dpdk.org/patch/159636

_Testing issues_

Submitter: Scott Mitchell <scott.k.mitch1@gmail.com>
Date: Wednesday, January 07 2026 17:04:15 
DPDK git baseline: Repo:dpdk
  Branch: master
  CommitID:cd60dcd503b91956f966a1f6d595b35d256ac00f

159636 --> testing issues

Upstream job id: Generic-VM-Unit-Test-DPDK#33308

Test environment and result as below:

+-------------------------------+----------------+
|          Environment          | dpdk_unit_test |
+===============================+================+
| CentOS Stream 9               | WARN           |
+-------------------------------+----------------+
| CentOS Stream 10              | WARN           |
+-------------------------------+----------------+
| Debian GNU/Linux 12           | WARN           |
+-------------------------------+----------------+
| Fedora Linux 40               | WARN           |
+-------------------------------+----------------+
| Fedora Linux 41               | PASS           |
+-------------------------------+----------------+
| Fedora Linux 42               | WARN           |
+-------------------------------+----------------+
| Red Hat Enterprise Linux 8.10 | PASS           |
+-------------------------------+----------------+
| Ubuntu 20.04                  | PASS           |
+-------------------------------+----------------+
| Red Hat Enterprise Linux 9.7  | WARN           |
+-------------------------------+----------------+
| Ubuntu 22.04                  | WARN           |
+-------------------------------+----------------+
| Ubuntu 24.04                  | WARN           |
+-------------------------------+----------------+
| Windows Server 2022           | PASS           |
+-------------------------------+----------------+

==== 20 line log output for Ubuntu 24.04 (dpdk_unit_test): ====
from ../lib/ethdev/rte_ethdev.h:1503,
from ../lib/ethdev/ethdev_driver.h:21,
from ../drivers/net/atlantic/atl_rxtx.c:6:
../lib/net/rte_ip6.h: In function 'rte_ipv6_phdr_cksum':
../lib/net/rte_ip6.h:578:15: error: 'psd_hdr' may be used uninitialized [-Werror=maybe-uninitialized]
578 |         sum = __rte_raw_cksum(&psd_hdr, sizeof(psd_hdr), sum);
|               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../lib/net/rte_ip4.h:32,
from ../lib/net/rte_ip.h:9:
../lib/net/rte_cksum.h:44:1: note: by argument 1 of type 'const void *' to '__rte_raw_cksum' declared here
44 | __rte_raw_cksum(const void *buf, size_t len, uint32_t sum)
| ^~~~~~~~~~~~~~~
../lib/net/rte_ip6.h:567:11: note: 'psd_hdr' declared here
567 |         } psd_hdr = {0}; /* Empty initializer avoids false-positive maybe-uninitialized warning */
|           ^~~~~~~
cc1: all warnings being treated as errors
[1237/3611] Compiling C object drivers/librte_net_ark.so.26.1.p/meson-generated_.._rte_net_ark.pmd.c.o
[1238/3611] Generating rte_net_ark.sym_chk with a custom command (wrapped by meson to capture output)
[1239/3611] Compiling C object drivers/libtmp_rte_net_atlantic.a.p/net_atlantic_hw_atl_hw_atl_b0.c.o
ninja: build stopped: subcommand failed.
==== End log output ====

CentOS Stream 9
	Kernel: 5.15
	Compiler: gcc gcc (GCC) 11.5.0 20240719 (Red Hat 11.5.0-14)

CentOS Stream 10
	Kernel: 5.15
	Compiler: gcc gcc (GCC) 14.3.1 20251022 (Red Hat 14.3.1-4)

Debian GNU/Linux 12
	Kernel: 5.15
	Compiler: gcc gcc (Debian 12.2.0-14+deb12u1) 12.2.0

Fedora Linux 40
	Kernel: 5.15
	Compiler: clang gcc (GCC) 14.2.1 20240912 (Red Hat 14.2.1-3)

Fedora Linux 41
	Kernel: 5.15
	Compiler: gcc gcc (GCC) 14.3.1 20250523 (Red Hat 14.3.1-1)

Fedora Linux 42
	Kernel: 5.15
	Compiler: clang gcc (GCC) 15.2.1 20251111 (Red Hat 15.2.1-4)

Red Hat Enterprise Linux 8.10
	Kernel: 5.15
	Compiler: gcc gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-28)

Ubuntu 20.04
	Kernel: 5.15
	Compiler: gcc gcc (Ubuntu 9.4.0-1ubuntu1~20.04.2) 9.4.0

Red Hat Enterprise Linux 9.7
	Kernel: 5.15
	Compiler: gcc gcc (GCC) 11.5.0 20240719 (Red Hat 11.5.0-11)

Ubuntu 22.04
	Kernel: 5.15
	Compiler: gcc gcc (Ubuntu 11.4.0-1ubuntu1~22.04.2) 11.4.0

Ubuntu 24.04
	Kernel: 5.15
	Compiler: gcc gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0

Windows Server 2022
	Kernel: 10.0.20348.2031
	Compiler: clang 15.0.7, gcc 14.1.0 (MinGW), and MSVC VS 19.39.33521

To view detailed results, visit:
https://lab.dpdk.org/results/dashboard/patchsets/34860/

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