[PATCH net] selftests/net: set link down before enslave

[Hangbin Liu]

Set the link down before enslave it to a bond device, to avoid
Error: Device can not be enslaved while up.

Fixes: 6374a5606990 ("selftests: rtnetlink: Test bridge enslavement with 
different parent IDs")
Signed-off-by: Hangbin Liu <liuhang...@gmail.com>
---
 tools/testing/selftests/net/rtnetlink.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/net/rtnetlink.sh 
b/tools/testing/selftests/net/rtnetlink.sh
index c9ce3dfa42ee..a26fddc63992 100755
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -1205,6 +1205,8 @@ kci_test_bridge_parent_id()
        dev20=`ls ${sysfsnet}20/net/`
 
        ip link add name test-bond0 type bond mode 802.3ad
+       ip link set dev $dev10 down
+       ip link set dev $dev20 down
        ip link set dev $dev10 master test-bond0
        ip link set dev $dev20 master test-bond0
        ip link add name test-br0 type bridge
-- 
2.26.2