netdev - Re: [PATCH net 2/2] net: thunderbolt: Run disconnect flow asynchronously when logout is received

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Message-Id: <20180212.120325.2105987484810673757.davem@davemloft.net>
Date:   Mon, 12 Feb 2018 12:03:25 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     mika.westerberg@...ux.intel.com
Cc:     michael.jamet@...el.com, yehezkel.bernat@...el.com,
        netdev@...r.kernel.org
Subject: Re: [PATCH net 2/2] net: thunderbolt: Run disconnect flow
 asynchronously when logout is received

From: Mika Westerberg <mika.westerberg@...ux.intel.com>
Date: Mon, 12 Feb 2018 17:10:20 +0300

> The control channel calls registered callbacks when control messages
> such as XDomain protocol messages are received. The control channel
> handling is done in a worker running on system workqueue which means the
> networking driver can't run tear down flow which includes sending
> disconnect request and waiting for a reply in the same worker. Otherwise
> reply is never received (as the work is already running) and the
> operation times out.
> 
> To fix this run disconnect ThunderboltIP flow asynchronously once
> ThunderboltIP logout message is received.
> 
> Fixes: e69b6c02b4c3 ("net: Add support for networking over Thunderbolt cable")
> Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>

Also applied, thank you.