[PATCH net 13/17] selftests: mptcp: join: skip fail tests if not supported

[Matthieu Baerts]

Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.

One of them is the support of the MP_FAIL / infinite mapping introduced
by commit 1e39e5a32ad7 ("mptcp: infinite mapping sending") and the
following ones.

It is possible to look for one of the infinite mapping counters to know
in advance if the this feature is available.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: b6e074e171bc ("selftests: mptcp: add infinite map testcase")
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 2ba18161d407 ("selftests: mptcp: add MP_FAIL reset testcase")
Signed-off-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>
---
 tools/testing/selftests/net/mptcp/mptcp_join.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index f9161ed69b86..7867bad59253 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -384,7 +384,7 @@ setup_fail_rules()
 
 reset_with_fail()
 {
-	reset "${1}" || return 1
+	reset_check_counter "${1}" "MPTcpExtInfiniteMapTx" || return 1
 	shift
 
 	ip netns exec $ns1 sysctl -q net.mptcp.checksum_enabled=1

-- 
2.40.1