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IFF_BROADCAST137drivers/net/loopback.cdev->flags    = IFF_LOOPBACK|IFF_BROADCAST;
IFF_BROADCAST208drivers/net/net_init.cdev->flags    = IFF_BROADCAST|IFF_MULTICAST;
IFF_BROADCAST238drivers/net/net_init.cdev->flags    = IFF_BROADCAST;
IFF_BROADCAST998net/core/dev.cIFF_UP | IFF_BROADCAST | IFF_DEBUG | IFF_LOOPBACK |
IFF_BROADCAST128net/ipv4/devinet.cif ((dev->flags & IFF_BROADCAST) && addr == dev->pa_brdaddr)
IFF_BROADCAST1918net/ipv4/ip.cif((dev->flags&IFF_BROADCAST) && (iph->daddr==dev->pa_brdaddr||iph->daddr==0xFFFFFFFF) && !(dev->flags&IFF_LOOPBACK))
IFF_BROADCAST2726net/ipv4/ip.cif((dev->flags&IFF_BROADCAST) && (daddr==0xFFFFFFFF || daddr==dev->pa_brdaddr) && !(dev->flags&IFF_LOOPBACK))
IFF_BROADCAST579net/ipv4/route.cif ((rt->rt_dev->flags & IFF_BROADCAST) &&
IFF_BROADCAST618net/ipv4/route.cif ((rt->rt_dev->flags & IFF_BROADCAST) &&