HWSIM_ATTR_SUPPORT_NAN_DEVICE
ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_NAN_DEVICE);
param.nan_device = info->attrs[HWSIM_ATTR_SUPPORT_NAN_DEVICE];
[HWSIM_ATTR_SUPPORT_NAN_DEVICE] = { .type = NLA_FLAG },