[PATCH net-next v3 13/13] selftests: net: add team_bridge_macvlan rx_mode test
From: Stanislav Fomichev <sdf@fomichev.me>
Date: 2026-03-20 01:25:20
Also in:
intel-wired-lan, linux-doc, linux-kselftest, linux-rdma, linux-wireless, lkml
Subsystem:
kernel selftest framework, networking [general], the rest · Maintainers:
Shuah Khan, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Add a test that exercises the ndo_change_rx_flags path through a macvlan -> bridge -> team -> dummy stack. This triggers dev_uc_add under addr_list_lock which flips promiscuity on the lower device. With the new work queue approach, this must not deadlock. Link: https://lore.kernel.org/netdev/20260214033859.43857-1-jiayuan.chen@linux.dev/ (local) Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> --- tools/testing/selftests/net/config | 1 + tools/testing/selftests/net/rtnetlink.sh | 44 ++++++++++++++++++++++++ 2 files changed, 45 insertions(+)
diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config
index 2a390cae41bf..94d722770420 100644
--- a/tools/testing/selftests/net/config
+++ b/tools/testing/selftests/net/config@@ -101,6 +101,7 @@ CONFIG_NET_SCH_HTB=m CONFIG_NET_SCH_INGRESS=m CONFIG_NET_SCH_NETEM=y CONFIG_NET_SCH_PRIO=m +CONFIG_NET_TEAM=y CONFIG_NET_VRF=y CONFIG_NF_CONNTRACK=m CONFIG_NF_CONNTRACK_OVS=y
diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index 5a5ff88321d5..c499953d4885 100755
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh@@ -23,6 +23,7 @@ ALL_TESTS=" kci_test_encap kci_test_macsec kci_test_macsec_vlan + kci_test_team_bridge_macvlan kci_test_ipsec kci_test_ipsec_offload kci_test_fdb_get
@@ -636,6 +637,49 @@ kci_test_macsec_vlan() end_test "PASS: macsec_vlan" } +# Test ndo_change_rx_flags call from dev_uc_add under addr_list_lock spinlock. +# When we are flipping the promisc, make sure it runs on the work queue. +# +# https://lore.kernel.org/netdev/20260214033859.43857-1-jiayuan.chen@linux.dev/ +# With (more conventional) macvlan instead of macsec. +# macvlan -> bridge -> team -> dummy +kci_test_team_bridge_macvlan() +{ + local vlan="test_macv1" + local bridge="test_br1" + local team="test_team1" + local dummy="test_dummy1" + local ret=0 + + run_cmd ip link add $team type team + if [ $ret -ne 0 ]; then + end_test "SKIP: team_bridge_macvlan: can't add team interface" + return $ksft_skip + fi + + run_cmd ip link add $dummy type dummy + run_cmd ip link set $dummy master $team + run_cmd ip link set $team up + run_cmd ip link add $bridge type bridge vlan_filtering 1 + run_cmd ip link set $bridge up + run_cmd ip link set $team master $bridge + run_cmd ip link add link $bridge name $vlan \ + address 00:aa:bb:cc:dd:ee type macvlan mode bridge + run_cmd ip link set $vlan up + + run_cmd ip link del $vlan + run_cmd ip link del $bridge + run_cmd ip link del $team + run_cmd ip link del $dummy + + if [ $ret -ne 0 ]; then + end_test "FAIL: team_bridge_macvlan" + return 1 + fi + + end_test "PASS: team_bridge_macvlan" +} + #------------------------------------------------------------------- # Example commands # ip x s add proto esp src 14.0.0.52 dst 14.0.0.70 \
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2.53.0