954 	struct tb_switch *parent_sw;  in margining_switch_init()  local
961 	parent_sw = tb_switch_parent(sw);  in margining_switch_init()
962 	downstream = tb_port_at(route, parent_sw);  in margining_switch_init()
970 	struct tb_switch *parent_sw;  in margining_switch_remove()  local
981 	parent_sw = tb_switch_parent(sw);  in margining_switch_remove()
982 	downstream = tb_port_at(route, parent_sw);  in margining_switch_remove()
988 	struct tb_switch *parent_sw;  in margining_xdomain_init()  local
991 	parent_sw = tb_xdomain_parent(xd);  in margining_xdomain_init()
992 	downstream = tb_port_at(xd->route, parent_sw);  in margining_xdomain_init()
999 	struct tb_switch *parent_sw;  in margining_xdomain_remove()  local
1002 	parent_sw = tb_xdomain_parent(xd);  in margining_xdomain_remove()
1003 	downstream = tb_port_at(xd->route, parent_sw);  in margining_xdomain_remove()