[Bug 1140] [19.11.14-rc1] app/test-pmd/config meson build failed with clangClang15.0.4 on Fedora37/64

[Bug 1140] [19.11.14-rc1] app/test-pmd/config meson build failed with clangClang15.0.4 on Fedora37/64

[bugzilla]

https://bugs.dpdk.org/show_bug.cgi?id=1140

            Bug ID: 1140
           Summary: [19.11.14-rc1] app/test-pmd/config meson build failed
                    with clangClang15.0.4 on Fedora37/64
           Product: DPDK
           Version: 19.11
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: core
          Assignee: dev@dpdk.org
          Reporter: daxuex.gao@intel.com
  Target Milestone: ---

[DPDK version]
commit f99f2e55af7a49a6ee6555a5554847094086017f
Author: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Date:   Mon Nov 28 11:46:00 2022 +0100

    version: 19.11.14-rc1

    Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

[OS version]
fedora37/5.19.0-21-generic
clang v15.04

[Test Setup]
CC=clang meson --werror -Denable_kmods=True -Dlibdir=lib -Dexamples=all
--default-library=static x86_64-native-linuxapp-clang
ninja -j 10 -C x86_64-native-linuxapp-clang

[Error log]
Target: x86_64-native-linuxapp-clang
FAILED: app/dpdk-testpmd.p/test-pmd_config.c.o 
clang -Iapp/dpdk-testpmd.p -Iapp -I../app -Ilib/librte_ethdev
-I../lib/librte_ethdev -I. -I.. -Iconfig -I../config
-Ilib/librte_eal/common/include -I../lib/librte_eal/common/include
-I../lib/librte_eal/linux/eal/include -Ilib/librte_eal/common
-I../lib/librte_eal/common -Ilib/librte_eal/common/include/arch/x86
-I../lib/librte_eal/common/include/arch/x86 -Ilib/librte_eal
-I../lib/librte_eal -Ilib/librte_kvargs -I../lib/librte_kvargs -Ilib/librte_net
-I../lib/librte_net -Ilib/librte_mbuf -I../lib/librte_mbuf -Ilib/librte_mempool
-I../lib/librte_mempool -Ilib/librte_ring -I../lib/librte_ring
-Ilib/librte_meter -I../lib/librte_meter -Ilib/librte_gro -I../lib/librte_gro
-Ilib/librte_gso -I../lib/librte_gso -Ilib/librte_cmdline
-I../lib/librte_cmdline -Ilib/librte_metrics -I../lib/librte_metrics
-Idrivers/bus/pci -I../drivers/bus/pci -I../drivers/bus/pci/linux
-Ilib/librte_pci -I../lib/librte_pci -Ilib/librte_pdump -I../lib/librte_pdump
-Ilib/librte_bitratestats -I../lib/librte_bitratestats
-Ilib/librte_latencystats -I../lib/librte_latencystats -Idrivers/net/bonding
-I../drivers/net/bonding -Idrivers/bus/vdev -I../drivers/bus/vdev
-Ilib/librte_sched -I../lib/librte_sched -Ilib/librte_ip_frag
-I../lib/librte_ip_frag -Ilib/librte_hash -I../lib/librte_hash
-Idrivers/net/bnxt -I../drivers/net/bnxt -Idrivers/net/i40e
-I../drivers/net/i40e -Idrivers/net/i40e/base -I../drivers/net/i40e/base
-Idrivers/net/ixgbe -I../drivers/net/ixgbe -Idrivers/net/ixgbe/base
-I../drivers/net/ixgbe/base -Ilib/librte_security -I../lib/librte_security
-Ilib/librte_cryptodev -I../lib/librte_cryptodev -Idrivers/net/softnic
-I../drivers/net/softnic -Ilib/librte_pipeline -I../lib/librte_pipeline
-Ilib/librte_port -I../lib/librte_port -Ilib/librte_eventdev
-I../lib/librte_eventdev -Ilib/librte_timer -I../lib/librte_timer
-Ilib/librte_kni -I../lib/librte_kni -Ilib/librte_table -I../lib/librte_table
-Ilib/librte_lpm -I../lib/librte_lpm -Ilib/librte_acl -I../lib/librte_acl
-Idrivers/bus/dpaa -I../drivers/bus/dpaa -I../drivers/bus/dpaa/include
-I../drivers/bus/dpaa/base/qbman -Idrivers/common/dpaax
-I../drivers/common/dpaax -I../drivers/common/dpaax/caamflib
-Idrivers/mempool/dpaa -I../drivers/mempool/dpaa -Idrivers/net/dpaa
-I../drivers/net/dpaa -Ilib/librte_bpf -I../lib/librte_bpf -fcolor-diagnostics
-D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -Werror -O3 -include
rte_config.h -Wcast-qual -Wdeprecated -Wformat -Wformat-nonliteral
-Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wnested-externs
-Wold-style-definition -Wpointer-arith -Wsign-compare -Wstrict-prototypes
-Wundef -Wwrite-strings -Wno-address-of-packed-member
-Wno-missing-field-initializers -D_GNU_SOURCE -march=native
-Wno-deprecated-declarations -DRTE_LIBRTE_IXGBE_BYPASS -DALLOW_EXPERIMENTAL_API
-MD -MQ app/dpdk-testpmd.p/test-pmd_config.c.o -MF
app/dpdk-testpmd.p/test-pmd_config.c.o.d -o
app/dpdk-testpmd.p/test-pmd_config.c.o -c ../app/test-pmd/config.c
../app/test-pmd/config.c:1460:11: error: variable 'c' set but not used
[-Werror,-Wunused-but-set-variable]
        uint32_t c = 0;
                 ^
1 error generated.
[1855/2195] Compiling C object app/dpdk-testpmd.p/test-pmd_icmpecho.c.o
[1856/2195] Compiling C object app/dpdk-testpmd.p/test-pmd_flowgen.c.o
[1857/2195] Compiling C object
examples/dpdk-ethtool.p/ethtool_lib_rte_ethtool.c.o
[1858/2195] Compiling C object app/test/dpdk-test.p/test_byteorder.c.o
[1859/2195] Compiling C object app/dpdk-testpmd.p/test-pmd_macswap.c.o
[1860/2195] Compiling C object app/dpdk-testpmd.p/test-pmd_macfwd.c.o
[1861/2195] Compiling C object app/dpdk-testpmd.p/test-pmd_cmdline_mtr.c.o
[1862/2195] Compiling C object
drivers/libtmp_rte_pmd_octeontx2_event.a.p/event_octeontx2_otx2_worker.c.o
[1863/2195] Compiling C object
drivers/libtmp_rte_pmd_octeontx2_event.a.p/event_octeontx2_otx2_worker_dual.c.o
ninja: build stopped


[Bad commit]
commit b06fc3d2a7eaca271eca9cbd6a2f7111f0fb50c0
Author: David Marchand <david.marchand@redhat.com>
Date:   Fri Nov 18 09:53:12 2022 +0100

    test/member: fix build with clang 15

    [ upstream commit 8f8ed0c1f7f20d821eba41f51243e805b66e2579 ]

    This local variable hides the more global one.
    The original intent was probably to use the global one.

    Fixes: 0cc67a96e486 ("test/member: add functional and perf tests")

    Signed-off-by: David Marchand <david.marchand@redhat.com>
    Acked-by: Tyler Retzlaff <roretzla@linux.microsoft.com>

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