Re: [PATCH net-next 2/2] enetc: use napi_schedule to be compatible with PREEMPT_RT

[Vladimir Oltean]

Hi Sasha,

On Wed, Aug 12, 2020 at 05:34:30PM +0300, Vladimir Oltean wrote:
> On Wed, Aug 12, 2020 at 03:51:44PM +0200, Sebastian Andrzej Siewior wrote:
> > On 2020-08-03 18:21:45 [-0700], David Miller wrote:
> > > From: Vladimir Oltean <olteanv@xxxxxxxxx>
> > > > The driver calls napi_schedule_irqoff() from a context where, in RT,
> > > > hardirqs are not disabled, since the IRQ handler is force-threaded.
> > …
> > > > 
> > > > Signed-off-by: Jiafei Pan <Jiafei.Pan@xxxxxxx>
> > > > Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>
> > > 
> > > Applied.
> > 
> > Could these two patches be forwarded -stable, please? The changelog
> > describes this as a problem on PREEMPT_RT but this also happens on !RT
> > with the `threadirqs' commandline switch.
> > 
> > Sebastian
> 
> I expect the driver maintainers to have something to say about this. I
> didn't test on stable kernels, and at least for dpaa2-eth, the change
> would need to go pretty deep down the stable line.
> 
> Also, not really sure who is using the threadirqs option except for
> testing purposes.
> 
> Thanks,
> -Vladimir

Do you think that this type of request is something that AUTOSEL can
handle?

Thanks,
-Vladimir