Function nd6_setmtu

freebsd/netinet6/nd6.c:334–341

* Reset ND level link MTU. This function is called when the physical MTU * changes, which means we might have to adjust the ND level MTU. */

 * changes, which means we might have to adjust the ND level MTU.
 */
void
nd6_setmtu(struct ifnet *ifp)
{
	if (ifp->if_afdata[AF_INET6] == NULL)
		return;

	nd6_setmtu0(ifp, ND_IFINFO(ifp));
}

/* XXX todo: do not maintain copy of ifp->if_mtu in ndi->maxmtu */
void