tcf_classify_qdisc
switch (tcf_classify_qdisc(skb, fl, &cl_res, false)) {
result = tcf_classify_qdisc(skb, filter, &res, false);
result = tcf_classify_qdisc(skb, fl, &res, false);
result = tcf_classify_qdisc(skb, fl, &res, false);
err = tcf_classify_qdisc(skb, fl, &res, false);
result = tcf_classify_qdisc(skb, filter, &res, false);
result = tcf_classify_qdisc(skb, filter, &res, false);
while (tcf && (result = tcf_classify_qdisc(skb, tcf, &res, false)) >= 0) {
while (tcf && (result = tcf_classify_qdisc(skb, tcf, &res, false)) >= 0) {
err = tcf_classify_qdisc(skb, fl, &res, false);
err = tcf_classify_qdisc(skb, fl, &res, false);
result = tcf_classify_qdisc(skb, fl, &res, false);
result = tcf_classify_qdisc(skb, fl, &res, false);
result = tcf_classify_qdisc(skb, fl, &res, false);