From: Geliang Tang <geliangt...@gmail.com>

This patch added a new testcase for setting the net device name. In it,
pass the net device name to pm_nl_ctl to set the ifindex field of struct
mptcp_pm_addr_entry.

Signed-off-by: Geliang Tang <geliangt...@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martin...@linux.intel.com>
---
 tools/testing/selftests/net/mptcp/mptcp_join.sh | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh 
b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index abeb24b7f8ec..fd99485cf2a4 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -777,6 +777,14 @@ subflows_tests()
        ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
        run_tests $ns1 $ns2 10.0.1.1
        chk_join_nr "multiple subflows, limited by server" 2 2 1
+
+       # single subflow, dev
+       reset
+       ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+       ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+       ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow dev ns2eth3
+       run_tests $ns1 $ns2 10.0.1.1
+       chk_join_nr "single subflow, dev" 1 1 1
 }
 
 signal_address_tests()
-- 
2.31.1

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