selftests: mptcp: join: skip if MPTCP is not supported

commit 715c78a82e00f848f99ef76e6f6b89216ccba268 upstream.

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

A new check is then added to make sure MPTCP is supported. If not, the
test stops and is marked as "skipped".

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: b08fbf241064 ("selftests: add test-cases for MPTCP MP_JOIN")
Cc: stable@vger.kernel.org
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 42e3bd1a05f56cd92aa739621d8b1c990b938b5e..bf1273dc6b0b9c674ed92be3bb383e40bcff08f9 100755 (executable)
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -6,6 +6,8 @@
 # address all other issues detected by shellcheck.
 #shellcheck disable=SC2086
 
+. "$(dirname "${0}")/mptcp_lib.sh"
+
 ret=0
 sin=""
 sinfail=""
@@ -132,6 +134,8 @@ cleanup_partial()
 
 check_tools()
 {
+       mptcp_lib_check_mptcp
+
        if ! ip -Version &> /dev/null; then
                echo "SKIP: Could not run test without ip tool"
                exit $ksft_skip