vlan_mc_entry
CK_SLIST_ENTRY(vlan_mc_entry) mc_entries;
struct vlan_mc_entry *mc;
CK_SLIST_HEAD(, vlan_mc_entry) vlan_mc_listhead;
struct vlan_mc_entry *mc = __containerof(ctx, struct vlan_mc_entry, mc_epoch_ctx);
struct vlan_mc_entry *mc;
mc = malloc(sizeof(struct vlan_mc_entry), M_VLAN, M_NOWAIT);