static void tcf_block_remove(struct tcf_block *block, struct net *net)
{
	struct tcf_net *tn = net_generic(net, tcf_net_id);

	spin_lock(&tn->idr_lock);
	idr_remove(&tn->idr, block->index);
	spin_unlock(&tn->idr_lock);
}
static void tcf_block_remove(struct tcf_block *block, struct net *net)
{
	struct tcf_net *tn = net_generic(net, tcf_net_id);

	spin_lock(&tn->idr_lock);
	idr_remove(&tn->idr, block->index);
	spin_unlock(&tn->idr_lock);
}