Re: [Qemu-devel] [PATCH] qdev: Assign a default device ID when none is provided.

[Markus Armbruster]

Hani Benhabiles <address@hidden> writes:

> This would allow a user to be able to refer to the device when using commands
> like device_del.
>
> Signed-off-by: Hani Benhabiles <address@hidden>

No.

Device IDs belong to the user.  Any IDs the system picks automatically
can collide with the user's IDs.

Management applications assume that they can pick any ID they want.
Your patch can introduce ID collisions, and thus make existing
configurations fail.

If I remember correctly, a few legacy convenience options pick IDs for
historical reasons.  If you use them, you need to be aware of the IDs
they pick.  Management applications shouldn't use them.

We've discussed this a couple of times already, by the way.