struct tc_u_common *tp_c = tp->data;
struct tc_u_hnode *root_ht = xchg(&tp->root, NULL);
struct tc_u_common *tp_c = tp->data;
struct tc_u_hnode *root_ht = xchg(&tp->root, NULL);
if (root_ht && --root_ht->refcnt == 0)
u32_destroy_hnode(tp, root_ht);
if (root_ht && --root_ht->refcnt == 0)
u32_destroy_hnode(tp, root_ht);