Re: [PATCH net-next v2] selftests/net: Skip srv6_end_dt46_l3vpn_test::host_vpn_tests if iproute2 too old
From: Andrea Mayer <andrea.mayer@uniroma2.it>
Date: 2026-07-15 09:16:24
Also in:
linux-kselftest
On Mon, 13 Jul 2026 11:57:50 +0200 Alessio Faina [off-list ref] wrote:
In case iproute2 is older than version 5.14.0, released ~Sept 1, 2021,
the End.DT46 support is not available and the host_vpn_tests test contained
in the srv6_end_dt46_l3vpn_test.sh file is failing in some kernel backports.
This is the result of those tests:
################################################################################
TEST SECTION: SRv6 VPN connectivity test among hosts in the same tenant
################################################################################
TEST: IPv6 Hosts connectivity: hs-t100-1 -> hs-t100-2 (tenant 100) [ FAIL ]
TEST: IPv4 Hosts connectivity: hs-t100-1 -> hs-t100-2 (tenant 100) [ FAIL ]
TEST: IPv6 Hosts connectivity: hs-t100-2 -> hs-t100-1 (tenant 100) [ FAIL ]
TEST: IPv4 Hosts connectivity: hs-t100-2 -> hs-t100-1 (tenant 100) [ FAIL ]
TEST: IPv6 Hosts connectivity: hs-t200-3 -> hs-t200-4 (tenant 200) [ FAIL ]
TEST: IPv4 Hosts connectivity: hs-t200-3 -> hs-t200-4 (tenant 200) [ FAIL ]
TEST: IPv6 Hosts connectivity: hs-t200-4 -> hs-t200-3 (tenant 200) [ FAIL ]
TEST: IPv4 Hosts connectivity: hs-t200-4 -> hs-t200-3 (tenant 200) [ FAIL ]
To amend this, check the current running iproute2 supports the required
feature and, if not, just skip the test to avoid a failure.
Signed-off-by: Alessio Faina <redacted>Hi Alessio, Thanks for the v2, the code looks good to me. One question: since the check now exits the entire script before setup(), should the subject drop the "::host_vpn_tests" part? just a nit: test_iproute2_supp_or_ksft_skip() uses spaces, but most of this file uses tabs. Ciao Andrea
quoted hunk ↗ jump to hunk
--- v2: - skip entire test suite if iproute2 is too old v1: https://urldefense.com/v3/__https://lore.kernel.org/netdev/20260708152745.2430714-1-alessio.faina@canonical.com/__;!!O5Bi4QcV!CGb1HmTUSZ4JwCff0mVcoY_KnoHJmrGDAdGnPOEYWRVFi-J05H-ZtpLVZBNK12kwLaNmhzw7mrQw4M_eY5uuSft8PRuFHqU$ .../testing/selftests/net/srv6_end_dt46_l3vpn_test.sh | 10 ++++++++++ 1 file changed, 10 insertions(+)diff --git a/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh index a5e959a080bb..cd7ac03e3907 100755 --- a/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh +++ b/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh@@ -536,6 +536,14 @@ host_vpn_isolation_tests() done } +test_iproute2_supp_or_ksft_skip() +{ + if ! ip route add help 2>&1 | grep -qo "End.DT46"; then + echo "SKIP: Missing SRv6 End.DT46 support in iproute2" + exit "${ksft_skip}" + fi +} + if [ "$(id -u)" -ne 0 ];then echo "SKIP: Need root privileges" exit $ksft_skip@@ -546,6 +554,8 @@ if [ ! -x "$(command -v ip)" ]; then exit $ksft_skip fi +test_iproute2_supp_or_ksft_skip + modprobe vrf &>/dev/null if [ ! -e /proc/sys/net/vrf/strict_mode ]; then echo "SKIP: vrf sysctl does not exist"-- 2.43.0