radix_tree_insert
int radix_tree_insert(struct radix_tree_root *, unsigned long, void *);
retval = radix_tree_insert(&xa->xa_head, *pindex, ptr);
retval = radix_tree_insert(&xa->xa_head, *pnext_index, ptr);
retval = radix_tree_insert(&xa->xa_head, index, ptr);
err = radix_tree_insert(&cq_table->tree, cq->cqn, cq);
err = radix_tree_insert(&dev->qp_table_tree, qp->qpn &
err = radix_tree_insert(&srq_table->tree, srq->srqn, srq);
err = radix_tree_insert(&table->tree, cq->cqn, cq);
err = radix_tree_insert(&table->tree, mlx5_mkey_to_idx(mkey->key), mkey);
err = radix_tree_insert(&table->tree, dct->dctn, dct);
err = radix_tree_insert(&table->tree, qp->qpn | (rsc_type << 24), qp);
err = radix_tree_insert(&table->tree, srq->srqn, srq);
err = radix_tree_insert(&table->tree, mlx5_mkey_to_idx(mr->mmkey.key),
rc = radix_tree_insert(&uapi->radix, key, elm);