Make use of tc_cls_can_offload_and_chain0() to set extack msg in case
ethtool tc offload flag is not set or chain unsupported.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
                return -EOPNOTSUPP;
        }
 
-       if (!tc_can_offload_extack(ns->netdev, cls_bpf->common.extack))
+       if (!tc_cls_can_offload_and_chain0(ns->netdev, &cls_bpf->common))
                return -EOPNOTSUPP;
 
        if (cls_bpf->common.protocol != htons(ETH_P_ALL)) {
                return -EOPNOTSUPP;
        }
 
-       if (cls_bpf->common.chain_index)
-               return -EOPNOTSUPP;
-
        if (!ns->bpf_tc_accept) {
                NSIM_EA(cls_bpf->common.extack,
                        "netdevsim configured to reject BPF TC offload");