DRBD_A_DEVICE_STATISTICS_DEV_DISK_FLAGS
nla = ntb[DRBD_A_DEVICE_STATISTICS_DEV_DISK_FLAGS];
if (nla_put_u32(skb, DRBD_A_DEVICE_STATISTICS_DEV_DISK_FLAGS, s->dev_disk_flags))
[DRBD_A_DEVICE_STATISTICS_DEV_DISK_FLAGS] = { .type = NLA_U32, },