vtnet_mac_filter
if (sc->vtnet_mac_filter != NULL) {
free(sc->vtnet_mac_filter, M_DEVBUF);
sc->vtnet_mac_filter = NULL;
&sc->vtnet_mac_filter->vmf_unicast.macs[ucnt],
struct vtnet_mac_filter *filter = arg;
struct vtnet_mac_filter *filter;
filter = sc->vtnet_mac_filter;
sc->vtnet_mac_filter = malloc(sizeof(struct vtnet_mac_filter),
if (sc->vtnet_mac_filter == NULL)
struct vtnet_mac_filter *vtnet_mac_filter;
CTASSERT(sizeof(struct vtnet_mac_filter) <= PAGE_SIZE);