selftests: Clean forgotten resources as part of cleanup()

Several tests do not set some ports down as part of their cleanup(),
resulting in IPv6 link-local addresses and associated routes not being
deleted.

These leaks were found using a BPF tool that monitors ASIC resources.

Solve this by setting the ports down at the end of the tests.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh

@@ -109,6 +109,9 @@ router_destroy()
 	__addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64
 
 	tc qdisc del dev $rp2 clsact
+
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
 }
 
 setup_prepare()

tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh

@@ -111,6 +111,9 @@ router_destroy()
 	__addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64
 
 	tc qdisc del dev $rp2 clsact
+
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
 }
 
 setup_prepare()

tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh

@@ -93,7 +93,9 @@ switch_destroy()
 	lldptool -T -i $swp1 -V APP -d $(dscp_map 10) >/dev/null
 	lldpad_app_wait_del
 
+	ip link set dev $swp2 down
 	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
 	ip link set dev $swp1 nomaster
 	ip link del dev br1
 }

tools/testing/selftests/net/forwarding/pedit_dsfield.sh

@@ -75,7 +75,9 @@ switch_destroy()
 	tc qdisc del dev $swp2 clsact
 	tc qdisc del dev $swp1 clsact
 
+	ip link set dev $swp2 down
 	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
 	ip link set dev $swp1 nomaster
 	ip link del dev br1
 }

tools/testing/selftests/net/forwarding/pedit_l4port.sh

@@ -71,7 +71,9 @@ switch_destroy()
 	tc qdisc del dev $swp2 clsact
 	tc qdisc del dev $swp1 clsact
 
+	ip link set dev $swp2 down
 	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
 	ip link set dev $swp1 nomaster
 	ip link del dev br1
 }

tools/testing/selftests/net/forwarding/skbedit_priority.sh

@@ -72,7 +72,9 @@ switch_destroy()
 	tc qdisc del dev $swp2 clsact
 	tc qdisc del dev $swp1 clsact
 
+	ip link set dev $swp2 down
 	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
 	ip link set dev $swp1 nomaster
 	ip link del dev br1
 }