netdev - Re: [PATCH] net: convert SMSC USB net drivers to hw

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Date:	Fri, 01 Apr 2011 20:54:47 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	mirq-linux@...e.qmqm.pl
Cc:	netdev@...r.kernel.org, steve.glendinning@...c.com
Subject: Re: [PATCH] net: convert SMSC USB net drivers to hw_features

From: Micha┅ Miros┅aw <mirq-linux@...e.qmqm.pl>
Date: Thu, 31 Mar 2011 13:01:35 +0200 (CEST)

> There's a race (not fixed here) in smsc75xx in setting RFE_CTL that's not
> properly handled via rfe_ctl_lock. Spinlock is not a good tool here, as
> this has to wait for URB completion (or maybe just submission) after issuing
> register write request. Otherwise, the rfe_ctl might be changed just after
> spin_unlock() and device left programmed with other value.
> 
> smsc95xx has increased hard_header_len for the case of TX checksumming.
> 
> smsc75xx is fixed to advertise IP+IPV6_CSUM instead of HW_CSUM as it does
> not use csum_start/csum_offset.
> 
> Signed-off-by: Micha┅ Miros┅aw <mirq-linux@...e.qmqm.pl>

Applied.
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