[PATCH] AP: Allow using existing interfaces as a fallback

[Johannes Berg]

On Wed, 2016-06-01 at 08:33 +0200, Rafał Miłecki wrote:
> Some drivers (e.g. brcmfmac) may not support deleting virtual
> interfaces. In such cases we can start AP interfaces once only. On
> next tries be should try to use existing interfaces as a fallback.
> 
Why don't we just consider that a driver bug if you can create, but not
remove, interfaces?

johannes