port_remove_fop
(void) port_remove_fop(pfp, pfcp, 1, NULL, &oldvp, &olddvp);
if (port_remove_fop(pfp, pfcp, 0, NULL, &tvp, &tdvp)) {
(void) port_remove_fop(pfp, pfcp, 1, &active, &tvp, &tdvp);
(void) port_remove_fop(pfp, pfcp, 1, NULL,