Re: new warning caused by ("net-sysfs: update the queue counts in the unregistration path")

[Jakub Kicinski]

On Wed, 28 Sep 2022 16:20:33 -0700 Kevin Mitchell wrote:
> > As you said and looking around queue 0 is somewhat special and used as a
> > fallback. My suggestion would be to 1) check if the above race is
> > expected 2) if yes, a possible solution would be not to warn when
> > real_num_tx_queues == 0 as in such cases selecting queue 0 would be the
> > expected fallback (and you might want to check places like [1]).  
> 
> Yes this is exactly where this is happening and that sounds like a good idea to
> me. As far as I can tell, the message is completely innocuous. If there really
> are no cases where it is useful to have this warning for real_num_tx_queues ==
> 0, I could submit a patch to not emit it in that case.

SGTM, FWIW.