TUN_XDP_FLAG      254 drivers/net/tun.c 	return (unsigned long)ptr & TUN_XDP_FLAG;
TUN_XDP_FLAG      260 drivers/net/tun.c 	return (void *)((unsigned long)ptr | TUN_XDP_FLAG);
TUN_XDP_FLAG      266 drivers/net/tun.c 	return (void *)((unsigned long)ptr & ~TUN_XDP_FLAG);