248 	uutil_list_node_walk_t *ulnw;  in uutil_list_node_walk_init()  local
263 	ulnw = mdb_alloc(sizeof (uutil_list_node_walk_t), UM_SLEEP);  in uutil_list_node_walk_init()
265 	ulnw->ulnw_offset = ul.ul_offset;  in uutil_list_node_walk_init()
266 	ulnw->ulnw_final = wsp->walk_addr + offsetof(uu_list_t, ul_null_node);  in uutil_list_node_walk_init()
267 	ulnw->ulnw_current = (uintptr_t)ul.ul_null_node.uln_next;  in uutil_list_node_walk_init()
268 	ulnw->ulnw_buf = mdb_alloc(ulp.ulp_objsize, UM_SLEEP);  in uutil_list_node_walk_init()
269 	ulnw->ulnw_bufsz = ulp.ulp_objsize;  in uutil_list_node_walk_init()
271 	wsp->walk_data = ulnw;  in uutil_list_node_walk_init()
280 	uutil_list_node_walk_t *ulnw = wsp->walk_data;  in uutil_list_node_walk_step()  local
284 	if (ulnw->ulnw_current == ulnw->ulnw_final)  in uutil_list_node_walk_step()
287 	if (mdb_vread(&uln, sizeof (uu_list_node_impl_t), ulnw->ulnw_current) ==  in uutil_list_node_walk_step()
289 		mdb_warn("failed to read uu_list_node %x", ulnw->ulnw_current);  in uutil_list_node_walk_step()
293 	diff = ulnw->ulnw_current - ulnw->ulnw_offset;  in uutil_list_node_walk_step()
295 	if (mdb_vread(ulnw->ulnw_buf, ulnw->ulnw_bufsz, diff) == -1) {  in uutil_list_node_walk_step()
302 	status = wsp->walk_callback(diff, ulnw->ulnw_buf, wsp->walk_cbdata);  in uutil_list_node_walk_step()
304 	ulnw->ulnw_current = (uintptr_t)uln.uln_next;  in uutil_list_node_walk_step()
312 	uutil_list_node_walk_t *ulnw = wsp->walk_data;  in uutil_list_node_walk_fini()  local
314 	mdb_free(ulnw->ulnw_buf, ulnw->ulnw_bufsz);  in uutil_list_node_walk_fini()
315 	mdb_free(ulnw, sizeof (uutil_list_node_walk_t));  in uutil_list_node_walk_fini()