From: Ido Schimmel <idosch@nvidia.com>
Date: Tue, 8 Aug 2023 14:14:52 +0000 (+0300)
Subject: selftests: forwarding: Add a helper to skip test when using veth pairs
X-Git-Tag: v5.10.191~36
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7e6af9c133c094ac6f1428d642a56ea5d05bbbed;p=thirdparty%2Fkernel%2Fstable.git

selftests: forwarding: Add a helper to skip test when using veth pairs

commit 66e131861ab7bf754b50813216f5c6885cd32d63 upstream.

A handful of tests require physical loopbacks to be used instead of veth
pairs. Add a helper that these tests will invoke in order to be skipped
when executed with veth pairs.

Fixes: 64916b57c0b1 ("selftests: forwarding: Add speed and auto-negotiation test")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Tested-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://lore.kernel.org/r/20230808141503.4060661-7-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index 9605e158a0bfc..46ed1174f3a40 100644
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -69,6 +69,17 @@ check_tc_action_hw_stats_support()
 	fi
 }
 
+skip_on_veth()
+{
+	local kind=$(ip -j -d link show dev ${NETIFS[p1]} |
+		jq -r '.[].linkinfo.info_kind')
+
+	if [[ $kind == veth ]]; then
+		echo "SKIP: Test cannot be run with veth pairs"
+		exit $ksft_skip
+	fi
+}
+
 if [[ "$(id -u)" -ne 0 ]]; then
 	echo "SKIP: need root privileges"
 	exit 0