# Re: \[PATCH 2/2\] Convert smsc911x to use ACPI as well as DT

- From: Hanjun Guo \<hidden\>
- Date: 2015-09-23 23:56:00 
- List: netdev
- Page: https://ratatoskr.run/netdev/2015/09/8720568
- Thread: https://ratatoskr.run/linux-arm-kernel/2015/08/8718778/t.md

```text
On 09/23/2015 02:03 PM, David Woodhouse wrote:
> On Wed, 2015-09-23 at 22:51 +0200, Rafael J. Wysocki wrote:
>>
>> But if the device ID is assigned already, why would it hurt to
>> actually use it?
>
> It doesn't hurt at all, as long as we understand that there was no need
> to assign it a device ID at all, at least for Linux's benefit. And as
> long as it doesn't set a precedent that makes other people think they
> need to do so.

It really depends on the people who writing the ASL code (DSDT),
I'm not sure if Windows will use _DSD and how to use it, but
firmware guys may just use the device ID to make the firmware
to be usable both by Linux and Windows, and that's reasonable
I think.

Thanks
Hanjun
```