TCA_INGRESS_BLOCK
if (tca[TCA_INGRESS_BLOCK]) {
block_index = nla_get_u32(tca[TCA_INGRESS_BLOCK]);
if (tca[TCA_INGRESS_BLOCK] || tca[TCA_EGRESS_BLOCK]) {
[TCA_INGRESS_BLOCK] = { .type = NLA_U32 },
if (tca[TCA_INGRESS_BLOCK] || tca[TCA_EGRESS_BLOCK]) {
nla_put_u32(skb, TCA_INGRESS_BLOCK, block_index))
addattr32(&req.n, sizeof(req), TCA_INGRESS_BLOCK, 1);