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

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Message-ID: <20200812135144.hpsfgxusojdrsewl@linutronix.de>
Date:   Wed, 12 Aug 2020 15:51:44 +0200
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     David Miller <davem@...emloft.net>, Jiafei.Pan@....com,
        olteanv@...il.com
Cc:     kuba@...nel.org, netdev@...r.kernel.org, claudiu.manoil@....com,
        ioana.ciornei@....com, yangbo.lu@....com,
        linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org
Subject: Re: [PATCH net-next 2/2] enetc: use napi_schedule to be compatible
 with PREEMPT_RT

On 2020-08-03 18:21:45 [-0700], David Miller wrote:
> From: Vladimir Oltean <olteanv@...il.com>
> > 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@....com>
> > Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
> 
> 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