IFF_LOWER_UP
#define IFF_LOWER_UP IFF_LOWER_UP
IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
IFF_LOWER_UP |
flags |= IFF_LOWER_UP;
if (flags & (IFF_RUNNING | IFF_LOWER_UP))
if (flags & (IFF_RUNNING | IFF_LOWER_UP))
if (!(netif_get_flags(dev) & (IFF_RUNNING | IFF_LOWER_UP)))
if (flags & (IFF_RUNNING | IFF_LOWER_UP))
if (flags & (IFF_RUNNING | IFF_LOWER_UP)) {
if (!(flags & (IFF_RUNNING | IFF_LOWER_UP)))