[PATCH net-next] selftests/net: ensure mptcp is enabled in netns

[Hangbin Liu]

Some distributions may not enable MPTCP by default. All other MPTCP tests
source mptcp_lib.sh to ensure MPTCP is enabled before testing. However,
the ip_local_port_range test is the only one that does not include this
step.

Let's also ensure MPTCP is enabled in netns for ip_local_port_range so
that it passes on all distributions.

Suggested-by: Davide Caratti <dcaratti@xxxxxxxxxx>
Signed-off-by: Hangbin Liu <liuhangbin@xxxxxxxxx>
---
 tools/testing/selftests/net/ip_local_port_range.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/ip_local_port_range.sh b/tools/testing/selftests/net/ip_local_port_range.sh
index 6c6ad346eaa0..4ff746db1256 100755
--- a/tools/testing/selftests/net/ip_local_port_range.sh
+++ b/tools/testing/selftests/net/ip_local_port_range.sh
@@ -2,4 +2,6 @@
 # SPDX-License-Identifier: GPL-2.0
 
 ./in_netns.sh \
-  sh -c 'sysctl -q -w net.ipv4.ip_local_port_range="40000 49999" && ./ip_local_port_range'
+  sh -c 'sysctl -q -w net.mptcp.enabled=1 && \
+         sysctl -q -w net.ipv4.ip_local_port_range="40000 49999" && \
+         ./ip_local_port_range'
-- 
2.46.0