Function bridge_clone_destroy

freebsd/net/if_bridge.c:743–782

* bridge_clone_destroy: * * Destroy a bridge instance. */

 *	Destroy a bridge instance.
 */
static void
bridge_clone_destroy(struct ifnet *ifp)
{
	struct bridge_softc *sc = ifp->if_softc;
	struct bridge_iflist *bif;
	struct epoch_tracker et;

	BRIDGE_LOCK(sc);

	bridge_stop(ifp, 1);
	ifp->if_flags &= ~IFF_UP;

	while ((bif = CK_LIST_FIRST(&sc->sc_iflist)) != NULL)
		bridge_delete_member(sc, bif, 0);

	while ((bif = CK_LIST_FIRST(&sc->sc_spanlist)) != NULL) {
		bridge_delete_span(sc, bif);
	}

	/* Tear down the routing table. */
	bridge_rtable_fini(sc);

	BRIDGE_UNLOCK(sc);

	NET_EPOCH_ENTER(et);

	callout_drain(&sc->sc_brcallout);

	BRIDGE_LIST_LOCK();
	LIST_REMOVE(sc, sc_list);
	BRIDGE_LIST_UNLOCK();

	bstp_detach(&sc->sc_stp);
	NET_EPOCH_EXIT(et);

	ether_ifdetach(ifp);
	if_free(ifp);

	NET_EPOCH_CALL(bridge_clone_destroy_cb, &sc->sc_epoch_ctx);
}

/*
 * bridge_ioctl: