topo_child_first
for (np = topo_child_first(pnp); np != NULL;
return (topo_child_first(pnode));
extern tnode_t *topo_child_first(tnode_t *);
for (cnp = topo_child_first(node); cnp != NULL;
for (tmp = topo_child_first(node); tmp != NULL;
if ((child = topo_child_first(node)) == NULL) {
cnode = topo_child_first(pnode);
cnode = topo_child_first(node);
if ((twp->tw_node = topo_child_first(root)) != NULL) {
nnp = topo_child_first(cnp);
for (ct = topo_child_first(rd->rd_pn);
ctn = topo_child_first(ptn);
ct = topo_child_first(rd->rd_pn);