|SUCCESS|dpdk|3171b278ca| Intel-Testing

[sys_stv at intel.com]

Test-Label: intel-Testing
Test-Status: SUCCESS
_Testing PASS_

DPDK git repo: dpdk
commit 3171b278ca807344b9fb6192b96af730ab70a403
Author: Bruce Richardson <bruce.richardson at intel.com>
Date:   Fri Sep 25 13:49:58 2026 +0100

    eal: fix C++ build when stdatomics is set
    
    When the DPDK build is configured to use stdatomics rather than compiler
    builtin atomics, the C++ chkincs builds were failing
    
    In file included from buildtools/chkincs/staging/generic/rte_atomic.h:18,
                     from lib/eal/x86/include/rte_atomic.h:12,
                     from buildtools/chkincs/chkincs-cpp.p/rte_atomic.cpp:1:
    buildtools/chkincs/staging/rte_stdatomic.h:30:9: error:
    ‘memory_order’ does not name a type
       30 | typedef memory_order rte_memory_order;
          |         ^~~~~~~~~~~~
    
    The cause is differences in atomics in C (C11) and C++ (e.g. C++17 as
    supported by current GCC). As explained by AI analysis:
    
       _Atomic(T) is a C11 feature. In C++ mode, GCC 15 does not support it
       as a type specifier, and <stdatomic.h> in C++17 doesn't expose
       memory_order in the global namespace (that's only in C++23). DPDK
       headers also use _Atomic in anonymous unions and under extern "C",
       which are incompatible with C++'s std::atomic<T> mapping.
    
    To fix this in a resilient manner we need to go from two blocks in
    rte_atomic.h to three. We have the existing non-standard/builtin
    atomics path, but the standard atomic path now needs to be split into C
    compatible and C++ compatible blocks. This fixes the build issues with
    C++ while keeping existing C builds unchanged.
    
    Bugzilla ID: 1985
    Fixes: 5c381a3587d1 ("eal: provide stdatomic API")
    Cc: stable at dpdk.org
    
    Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>

Testing Summary : 18 Case Done, 18 Successful, 0 Failures      

TestPlan:
	pf_smoke: http://git.dpdk.org/tools/dts/tree/test_plans/pf_smoke_test_plan.rst
	vf_smoke: http://git.dpdk.org/tools/dts/tree/test_plans/vf_smoke_test_plan.rst
	virtio_smoke: http://git.dpdk.org/tools/dts/tree/test_plans/virtio_smoke_test_plan.rst

TestSuite:
	pf_smoke: http://git.dpdk.org/tools/dts/tree/tests/TestSuite_pf_smoke.py
	vf_smoke: http://git.dpdk.org/tools/dts/tree/tests/TestSuite_vf_smoke.py
	virtio_smoke: http://git.dpdk.org/tools/dts/tree/tests/TestSuite_virtio_smoke.py


OS : Ubuntu 24.04.4 LTS       
Kernel : 6.8.0-71-generic         
GCC : 13.3.0-6ubuntu2~24.04.1        
NIC : Ethernet Controller XL710 for 40GbE QSFP+         
Target : x86_64-native-linuxapp-gcc      

	Test result details:
	+-------------+---------------------------+-------+
	| suite       | case                      | status|
	+-------------+---------------------------+-------+
	| asan_smoke  | test_rxtx_with_ASan_enable| passed|
	| pf_smoke    | test_pf_jumbo_frames      | passed|
	| pf_smoke    | test_pf_rss               | passed|
	| pf_smoke    | test_pf_tx_rx_queue       | passed|
	| vf_smoke    | test_vf_rss               | passed|
	| vf_smoke    | test_vf_tx_rx_queue       | passed|
	| vf_smoke    | test_vf_jumbo_frames      | n/a   |
	| virtio_smoke| test_virtio_loopback      | passed|
	| virtio_smoke| test_virtio_pvp           | passed|
	+-------------+---------------------------+-------+


OS : Ubuntu 24.04.4 LTS       
Kernel : 6.8.0-87-generic         
GCC : 13.3.0-6ubuntu2~24.04.1        
NIC : Ethernet Controller E810-C for SFP         
Target : x86_64-native-linuxapp-gcc      

	Test result details:
	+-------------+---------------------------+-------+
	| suite       | case                      | status|
	+-------------+---------------------------+-------+
	| asan_smoke  | test_rxtx_with_ASan_enable| passed|
	| pf_smoke    | test_pf_jumbo_frames      | passed|
	| pf_smoke    | test_pf_rss               | passed|
	| pf_smoke    | test_pf_tx_rx_queue       | passed|
	| vf_smoke    | test_vf_jumbo_frames      | passed|
	| vf_smoke    | test_vf_rss               | passed|
	| vf_smoke    | test_vf_tx_rx_queue       | passed|
	| virtio_smoke| test_virtio_loopback      | passed|
	| virtio_smoke| test_virtio_pvp           | passed|
	+-------------+---------------------------+-------+


DPDK STV team