TCA_SKBEDIT_PARMS
[TCA_SKBEDIT_PARMS] = { .len = sizeof(struct tc_skbedit) },
if (tb[TCA_SKBEDIT_PARMS] == NULL)
parm = nla_data(tb[TCA_SKBEDIT_PARMS]);
if (nla_put(skb, TCA_SKBEDIT_PARMS, sizeof(opt), &opt))