From: Cedric Jehasse When creating a flower classifier with an ipv4 address the flow_dissector has both FLOW_DISSECTOR_KEY_IPV4_ADDRS and FLOW_DISSECTOR_KEY_IPV6_ADDRS bits set in used_keys. This happens because ipv4/ipv6 fields are a union and FL_KEY_SET_IF_MASKED() will interpret either being set as both. Removing the unions fixes this behavior without needing special handling for union fields. Example of a command that caused FLOW_DISSECTOR_KEY_IPV4_ADDRS and FLOW_DISSECTOR_KEY_IPV6_ADDRS to be set: tc filter add dev p1 ingress protocol ip flower skip_sw \ dst_ip 224.0.1.129 action trap Signed-off-by: Cedric Jehasse --- net/sched/cls_flower.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c index 7669371c1354..b95dbe847dde 100644 --- a/net/sched/cls_flower.c +++ b/net/sched/cls_flower.c @@ -59,18 +59,14 @@ struct fl_flow_key { struct flow_dissector_key_eth_addrs eth; struct flow_dissector_key_vlan vlan; struct flow_dissector_key_vlan cvlan; - union { - struct flow_dissector_key_ipv4_addrs ipv4; - struct flow_dissector_key_ipv6_addrs ipv6; - }; + struct flow_dissector_key_ipv4_addrs ipv4; + struct flow_dissector_key_ipv6_addrs ipv6; struct flow_dissector_key_ports tp; struct flow_dissector_key_icmp icmp; struct flow_dissector_key_arp arp; struct flow_dissector_key_keyid enc_key_id; - union { - struct flow_dissector_key_ipv4_addrs enc_ipv4; - struct flow_dissector_key_ipv6_addrs enc_ipv6; - }; + struct flow_dissector_key_ipv4_addrs enc_ipv4; + struct flow_dissector_key_ipv6_addrs enc_ipv6; struct flow_dissector_key_ports enc_tp; struct flow_dissector_key_mpls mpls; struct flow_dissector_key_tcp tcp; -- 2.43.0