netdev - Re: [PATCH net,stable] net: usb: Add HP hs2434 device to ZLP exception table

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Message-Id: <20130828.182332.824853790331642993.davem@davemloft.net>
Date:	Wed, 28 Aug 2013 18:23:32 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	robmatic@...il.com
Cc:	netdev@...r.kernel.org, linux-usb@...r.kernel.org, bjorn@...k.no,
	oliver@...kum.org
Subject: Re: [PATCH net,stable] net: usb: Add HP hs2434 device to ZLP
 exception table

From: Rob Gardner <robmatic@...il.com>
Date: Sun, 25 Aug 2013 18:29:13 -0600

> From 018343ce2e679d97283fb51da25c43aa876d087a Mon Sep 17 00:00:00 2001
> From: Rob Gardner <robmatic@...il.com>
> Date: Sun, 25 Aug 2013 16:02:23 -0600
> Subject: [PATCH net,stable] net: usb: Add HP hs2434 device to ZLP exception table
> 
> This patch adds another entry (HP hs2434 Mobile Broadband) to the list
> of exceptional devices that require a zero length packet in order to
> function properly. This list was added in commit 844e88f0. The hs2434
> is manufactured by Sierra Wireless, who also produces the MC7710,
> which the ZLP exception list was created for in the first place. So
> hopefully it is just this one producer's devices that will need this
> workaround.
> 
> Tested on a DM1-4310NR HP notebook, which does not function without this
> change.
> 
> Signed-off-by: Rob Gardner <robmatic@...il.com>

Applied and queued up for -tablt, thanks.

On the topic of dealing with detection of this issue, how harmful is the
workaround on chips that don't need it?  Will the driver not work in that
case?
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