netdev - Re: [PATCH] net: ethoc: enable NAPI before poll may be scheduled

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Date:   Tue, 6 Jun 2017 08:05:05 +0200
From:   Tobias Klauser <tklauser@...tanz.ch>
To:     Max Filippov <jcmvbkbc@...il.com>
Cc:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Thierry Reding <thierry.reding@...il.com>,
        stable@...r.kernel.org
Subject: Re: [PATCH] net: ethoc: enable NAPI before poll may be scheduled

On 2017-06-06 at 03:31:16 +0200, Max Filippov <jcmvbkbc@...il.com> wrote:
> ethoc_reset enables device interrupts, ethoc_interrupt may schedule a
> NAPI poll before NAPI is enabled in the ethoc_open, which results in
> device being unable to send or receive anything until it's closed and
> reopened. In case the device is flooded with ingress packets it may be
> unable to recover at all.
> Move napi_enable above ethoc_reset in the ethoc_open to fix that.
> 
> Cc: stable@...r.kernel.org
> Signed-off-by: Max Filippov <jcmvbkbc@...il.com>

Reviewed-by: Tobias Klauser <tklauser@...tanz.ch>