Re: [dpdk-dev] [PATCH v2] power: fix unused-but-set variable error

[David Marchand <david.marchand@redhat.com>]

On Wed, Nov 10, 2021 at 11:56 AM Jiang, YuX <yux.jiang@intel.com> wrote:
> We verify this patch http://patches.dpdk.org/project/dpdk/patch/20211105155351.350403-1-james.r.harris@intel.com/ based on dpdk21.11-rc2 main branch(f4801fdb7828f45ddc4ada148b1b0a230a226570), still verify failed.
> Could you pls have a look again?
>
> Verified OS details:
> Tested Failed on OS Fedora35/Kernel 5.14.16-301.fc35.x86_64/gcc version11.2.1/clang version 13.0.0/ninja version 1.10.2
>
> Failed log details:
> [root@dpdk-Fedora34-64-gcc dpdk]# ninja -C x86_64-native-linuxapp-clang/

Is it fc34 or fc35?

> ninja: Entering directory `x86_64-native-linuxapp-clang/'
> [686/3119] Compiling C object drivers/libtmp_rte_bus_fslmc.a.p/bus_fslmc_fslmc_bus.c.o
> FAILED: drivers/libtmp_rte_bus_fslmc.a.p/bus_fslmc_fslmc_bus.c.o
> clang -Idrivers/libtmp_rte_bus_fslmc.a.p -Idrivers -I../drivers -Idrivers/bus/fslmc -I../drivers/bus/fslmc -I../drivers/bus/fslmc/mc -I../drivers/bus/fslmc/qbman/include -I../drivers/bus/fslmc/portal -I. -I.. -Iconfig -I../config -Ilib/eal/include -I../lib/eal/include -Ilib/eal/linux/include -I../lib/eal/linux/include -Ilib/eal/x86/include -I../lib/eal/x86/include -Ilib/eal/common -I../lib/eal/common -Ilib/eal -I../lib/eal -Ilib/kvargs -I../lib/kvargs -Ilib/metrics -I../lib/metrics -Ilib/telemetry -I../lib/telemetry -Idrivers/common/dpaax -I../drivers/common/dpaax -I../drivers/common/dpaax/caamflib -Ilib/eventdev -I../lib/eventdev -Ilib/ring -I../lib/ring -Ilib/ethdev -I../lib/ethdev -Ilib/net -I../lib/net -Ilib/mbuf -I../lib/mbuf -Ilib/mempool -I../lib/mempool -Ilib/meter -I../lib/meter -Ilib/hash -I../lib/hash -Ilib/rcu -I../lib/rcu -Ilib/timer -I../lib/timer -Ilib/cryptodev -I../lib/cryptodev -fcolor-diagnostics -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Werror -O3 -include rte_config.h -Wextra -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 -fPIC -march=native -DALLOW_EXPERIMENTAL_API -DALLOW_INTERNAL_API -DRTE_LOG_DEFAULT_LOGTYPE=bus.fslmc -MD -MQ drivers/libtmp_rte_bus_fslmc.a.p/bus_fslmc_fslmc_bus.c.o -MF drivers/libtmp_rte_bus_fslmc.a.p/bus_fslmc_fslmc_bus.c.o.d -o drivers/libtmp_rte_bus_fslmc.a.p/bus_fslmc_fslmc_bus.c.o -c ../drivers/bus/fslmc/fslmc_bus.c
> ../drivers/bus/fslmc/fslmc_bus.c:318:6: error: variable 'device_count' set but not used [-Werror,-Wunused-but-set-variable]
>         int device_count = 0;
>             ^
> 1 error generated.
> [691/3119] Generating rte_bus_dpaa.sym_chk with a custom command (wrapped by meson to capture output)
> ninja: build stopped: subcommand failed.bus_fslmc.a.p/bus_fslmc_fslmc_bus.c.o

Thanks for reporting.

The issue on fslmc is not related to Jim patch.
If there is no bugzilla opened for this issue, please open a new one.

Thanks.


-- 
David Marchand