bnx2x build fail on Fedora 34 with gcc 11

https://bugs.dpdk.org/show_bug.cgi?id=692

Bug ID: 692
Summary: bnx2x build fail on Fedora 34 with gcc 11
Product: DPDK
Version: unspecified
Hardware: All
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: ethdev
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---

[kevin@fedora dpdk]$ cat /etc/redhat-release
Fedora release 34 (Thirty Four)
[kevin@fedora dpdk]$ uname -a
Linux fedora 5.11.15-300.fc34.x86_64 #1 SMP Fri Apr 16 13:41:48 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
[kevin@fedora dpdk]$ gcc --version
gcc (GCC) 11.0.1 20210324 (Red Hat 11.0.1-0)

[kevin@fedora dpdk]$ ./devtools/test-meson-builds.sh
ninja: Entering directory `./build-gcc-static'
[842/2503] Compiling C object drivers/libtmp_rte_net_bnx2x.a.p/net_bnx2x_bnx2x_rxtx.c.o
FAILED: drivers/libtmp_rte_net_bnx2x.a.p/net_bnx2x_bnx2x_rxtx.c.o gcc -Idrivers/libtmp_rte_net_bnx2x.a.p -Idrivers -I../drivers -Idrivers/net/bnx2x -I../drivers/net/bnx2x -Ilib/ethdev -I../lib/ethdev -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 -Ilib/net -I../lib/net -Ilib/mbuf -I../lib/mbuf -Ilib/mempool -I../lib/mempool -Ilib/ring -I../lib/ring -Ilib/meter -I../lib/meter -Idrivers/bus/pci -I../drivers/bus/pci -I../drivers/bus/pci/linux -Ilib/pci -I../lib/pci -Idrivers/bus/vdev -I../drivers/bus/vdev -fdiagnostics-color=always -pipe -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Werror -O2 -g -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-packed-not-aligned -Wno-missing-field-initializers -Wno-zero-length-bounds -D_GNU_SOURCE -fPIC -march=native -DALLOW_EXPERIMENTAL_API -DALLOW_INTERNAL_API -Wno-format-truncation -DZLIB_CONST -MD -MQ drivers/libtmp_rte_net_bnx2x.a.p/net_bnx2x_bnx2x_rxtx.c.o -MF drivers/libtmp_rte_net_bnx2x.a.p/net_bnx2x_bnx2x_rxtx.c.o.d -o drivers/libtmp_rte_net_bnx2x.a.p/net_bnx2x_bnx2x_rxtx.c.o -c ../drivers/net/bnx2x/bnx2x_rxtx.c
In file included from ../drivers/net/bnx2x/bnx2x_rxtx.c:8:
../drivers/net/bnx2x/bnx2x_rxtx.c: In function ‘bnx2x_upd_rx_prod_fast’:
../drivers/net/bnx2x/bnx2x.h:1528:35: error: ‘rx_prods’ is used uninitialized [-Werror=uninitialized]
1528 | #define REG_WR32(sc, offset, val) bnx2x_reg_write32(sc, (offset), val)

      |                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

../drivers/net/bnx2x/bnx2x.h:1531:33: note: in expansion of macro ‘REG_WR32’
1531 | #define REG_WR(sc, offset, val) REG_WR32(sc, offset, val)
| ^~~~~~~~
../drivers/net/bnx2x/bnx2x_rxtx.c:331:9: note: in expansion of macro ‘REG_WR’

  331 |         REG_WR(sc, fp->ustorm_rx_prods_offset, val[0]);
      |         ^~~~~~

../drivers/net/bnx2x/bnx2x_rxtx.c:324:40: note: ‘rx_prods’ declared here
324 | struct ustorm_eth_rx_producers rx_prods = { 0 };
| ^~~~~~~~
cc1: all warnings being treated as errors
[846/2503] Compiling C object drivers/libtmp_rte_net_bnx2x.a.p/net_bnx2x_bnx2x.c.o
FAILED: drivers/libtmp_rte_net_bnx2x.a.p/net_bnx2x_bnx2x.c.o
gcc -Idrivers/libtmp_rte_net_bnx2x.a.p -Idrivers -I../drivers -Idrivers/net/bnx2x -I../drivers/net/bnx2x -Ilib/ethdev -I../lib/ethdev -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 -Ilib/net -I../lib/net -Ilib/mbuf -I../lib/mbuf -Ilib/mempool -I../lib/mempool -Ilib/ring -I../lib/ring -Ilib/meter -I../lib/meter -Idrivers/bus/pci -I../drivers/bus/pci -I../drivers/bus/pci/linux -Ilib/pci -I../lib/pci -Idrivers/bus/vdev -I../drivers/bus/vdev -fdiagnostics-color=always -pipe -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Werror -O2 -g -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-packed-not-aligned -Wno-missing-field-initializers -Wno-zero-length-bounds -D_GNU_SOURCE -fPIC -march=native -DALLOW_EXPERIMENTAL_API -DALLOW_INTERNAL_API -Wno-format-truncation -DZLIB_CONST -MD -MQ drivers/libtmp_rte_net_bnx2x.a.p/net_bnx2x_bnx2x.c.o -MF drivers/libtmp_rte_net_bnx2x.a.p/net_bnx2x_bnx2x.c.o.d -o drivers/libtmp_rte_net_bnx2x.a.p/net_bnx2x_bnx2x.c.o -c ../drivers/net/bnx2x/bnx2x.c
In file included from ../drivers/net/bnx2x/bnx2x.c:16:
../drivers/net/bnx2x/bnx2x.c: In function ‘bnx2x_hc_ack_sb’:
../drivers/net/bnx2x/bnx2x.h:1528:35: error: ‘igu_ack’ is used uninitialized [-Werror=uninitialized]
1528 | #define REG_WR32(sc, offset, val) bnx2x_reg_write32(sc, (offset), val)

      |                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

../drivers/net/bnx2x/bnx2x.h:1531:33: note: in expansion of macro ‘REG_WR32’
1531 | #define REG_WR(sc, offset, val) REG_WR32(sc, offset, val)
| ^~~~~~~~
../drivers/net/bnx2x/bnx2x.h:1916:9: note: in expansion of macro ‘REG_WR’

 1916 |         REG_WR(sc, hc_addr, *val);
      |         ^~~~~~

../drivers/net/bnx2x/bnx2x.h:1905:33: note: ‘igu_ack’ declared here
1905 | struct igu_ack_register igu_ack;
| ^~~~~~~
cc1: all warnings being treated as errors
[847/2503] Compiling C object drivers/libtmp_rte_net_bnx2x.a.p/net_bnx2x_elink.c.o
ninja: build stopped: subcommand failed.

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