Re: [PATCH 3/4] usb: Un-deprecate -usbdevice (except for -usbdevice audio which gets removed)

[Paolo Bonzini]

On 11/03/21 09:38, Markus Armbruster wrote:
> If we decide we want something else, keep -usbdevice braille deprecated
> until something else is ready, then keep it deprecated for a sensible
> grace period, then remove it.  Flip-flopping deprecation in between is
> not helpful.
>
> If we can't make up our minds, keep it deprecated until we do.
>
> Only if we decide the sugar should remain -usbdevice braille, we should
> undeprecate it now.
>
> The road to the CLI hell we're in is paved with "convenience".

A lot of the work I did in 6.0 on vl.c and friends was exactly to figure 
out:

- which of our CLI interfaces are a maintainability issue and really 
need deprecation

- which of our CLI interfaces can be modified to improve maintainability 
and simplify the addition of new interfaces

- how machine creation *really* works, so that it's easy to add things 
at the right spot.

Of course _everything_ is a maintenance cost, but you can at least make 
sure that the cost is not visible to most developers.  This series, as 
well as the previous removal of parameterized -usbdevice is just doing 
that: keep the decent parts that do not hamper maintainability, 
deprecate/remove the rest.

Paolo