I see some failures for this series for our Ubuntu 20.04 containers. And, our DTS testbeds which are on ubuntu 20.04 are skipping running testsuites because they can't compile DPDK. So, that's why it has some missing results for a couple of the Intel NICs. For context, I'll paste below where the compile job terminates in one of our containerized compile test runs. The GCC in use here is version 9.4, so it meets the requirements as described in your patch as far as I can tell. I'll check it out more tomorrow to see whether it's an infra failure, like some missing dependencies. Please let me know if we expect to have no issues with 20.04 or if this is anticipated. 

Thanks!

[1638/2730] Generating symbol file 'drivers/a715181@@rte_net_ixgbe@sha/librte_net_ixgbe.so.24.0.symbols'.
[1639/2730] Compiling C object 'drivers/a715181@@tmp_rte_net_mlx4@sta/net_mlx4_mlx4.c.o'.
FAILED: drivers/a715181@@tmp_rte_net_mlx4@sta/net_mlx4_mlx4.c.o
ccache cc -Idrivers/a715181@@tmp_rte_net_mlx4@sta -Idrivers -I../drivers -Idrivers/net/mlx4 -I../drivers/net/mlx4 -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/telemetry/../metrics -I../lib/telemetry/../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 -I/usr/include/libnl3 -fdiagnostics-color=always -pipe -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -Werror -std=c11 -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-packed-not-aligned -Wno-missing-field-initializers -D_GNU_SOURCE -fPIC -march=native -DALLOW_EXPERIMENTAL_API -DALLOW_INTERNAL_API -Wno-format-truncation -std=c11 -Wno-strict-prototypes -D_BSD_SOURCE -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=600 -UPEDANTIC -DRTE_LOG_DEFAULT_LOGTYPE=pmd.net.mlx4 -MD -MQ 'drivers/a715181@@tmp_rte_net_mlx4@sta/net_mlx4_mlx4.c.o' -MF 'drivers/a715181@@tmp_rte_net_mlx4@sta/net_mlx4_mlx4.c.o.d' -o 'drivers/a715181@@tmp_rte_net_mlx4@sta/net_mlx4_mlx4.c.o' -c ../drivers/net/mlx4/mlx4.c
In file included from ../drivers/net/mlx4/mlx4_rxtx.h:27,
                 from ../drivers/net/mlx4/mlx4.c:49:
../drivers/net/mlx4/mlx4_prm.h:111:8: error: redefinition of 'struct mlx4_wqe_lso_seg'
  111 | struct mlx4_wqe_lso_seg {
      |        ^~~~~~~~~~~~~~~~
In file included from ../drivers/net/mlx4/mlx4_glue.h:16,
                 from ../drivers/net/mlx4/mlx4.c:46:
/usr/include/infiniband/mlx4dv.h:410:8: note: originally defined here
  410 | struct mlx4_wqe_lso_seg {
      |        ^~~~~~~~~~~~~~~~
ninja: build stopped: subcommand failed.