linux-kernel - Re: [PATCH net-next v2 1/2] net: dsa: mv88e6xxx: Save switch rules

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Date:   Wed, 30 Jan 2019 19:46:08 -0500
From:   Vivien Didelot <vivien.didelot@...il.com>
To:     Miquel Raynal <miquel.raynal@...tlin.com>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Antoine Tenart <antoine.tenart@...tlin.com>,
        Maxime Chevallier <maxime.chevallier@...tlin.com>,
        Nadav Haklai <nadavh@...vell.com>
Subject: Re: [PATCH net-next v2 1/2] net: dsa: mv88e6xxx: Save switch rules

Hi Miquèl,

On Wed, 30 Jan 2019 10:46:06 +0100, Miquel Raynal <miquel.raynal@...tlin.com> wrote:

> > > > Today, there is no S2RAM support for switches. First, I proposed to add
> > > > suspend/resume callbacks to the mv88e6xxx driver - just enough to avoid
> > > > crashing the kernel.  
> > > 
> > > Then i would suggest the mv88e6xxx refuses the suspend. Actually that
> > > probably is the first correct step. We don't have suspend support, so
> > > stop the suspend happening, so preventing the kernel crash.  

Actually can you show me the crash that is happening?