flow_offload: return EOPNOTSUPP for the unsupported mpls action type
We need to return EOPNOTSUPP for the unsupported mpls action type when setup the flow action. In the original implement, we will return 0 for the unsupported mpls action type, actually we do not setup it and the following actions to the flow action entry. Fixes: 9838b20a ("net: sched: take rtnl lock in tc_setup_flow_action()") Signed-off-by: Baowen Zheng <baowen.zheng@corigine.com> Signed-off-by: Simon Horman <simon.horman@corigine.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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