netdev - Re: [PATCH 2/2 v6 RESEND] sierra_net: keep status interrupt URB active

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Message-Id: <20130508.131434.1761984633661397541.davem@davemloft.net>
Date:	Wed, 08 May 2013 13:14:34 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	dcbw@...hat.com
Cc:	oliver@...kum.org, tom.leiming@...il.com,
	epasheva@...rrawireless.com, netdev@...r.kernel.org,
	linux-usb@...r.kernel.org, rfiler@...rrawireless.com, phil@....cc
Subject: Re: [PATCH 2/2 v6 RESEND] sierra_net: keep status interrupt URB
 active

From: Dan Williams <dcbw@...hat.com>
Date: Mon, 06 May 2013 16:34:56 -0500

> The driver and firmware sync up through SYNC messages, and the
> firmware's affirmative reply to these SYNC messages appears to be the
> "Reset" indication received via the status interrupt endpoint.  Thus the
> driver needs the status interrupt endpoint always active so that the
> Reset indication can be received even if the netdev is closed, which is
> the case right after device insertion.
> 
> If the Reset indication is not received by the driver, it continues
> sending SYNC messages to the firmware, which crashes about 10 seconds
> later and the device stops responding.
> 
> Signed-off-by: Dan Williams <dcbw@...hat.com>

Applied.
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