[RFC v3 6/8] wifi: mac80211: extend ifcomb check functions for multi-radio

[Johannes Berg]

On Fri, 2024-06-07 at 13:04 +0200, Felix Fietkau wrote:
> > > 
> > > Use the sum of the number of interfaces from each radio instead of the 
> > > maximum.
> > 
> > Oh, then legacy user have misconception of the global interfaces
> > advertised and try to fail for the allowed limits.
> 
> Sure, but that might be an issue either way until user space is updated 
> and users start looking at the per-radio ifcomb data.

I'm kind of with Karthikeyan here - this could be understood as a
regression, since you're now telling userspace something you can't
actually do.

> The global data is simply not enough to describe the details of the 
> radio split.

Obviously, but that doesn't mean the global data as advertised in the
existing attributes must be *wrong*. It could be a subset, and the
superset data is only available to new implementations.

johannes