netdev - Re: [PATCH] sky2: safer transmit ring cleaning

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Message-ID: <20100112090202.6adf2370@nehalam>
Date:	Tue, 12 Jan 2010 09:02:02 -0800
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Michael Breuer <mbreuer@...jas.com>
Cc:	David Miller <davem@...emloft.net>, jarkao2@...il.com,
	mikem@...g3k.org, flyboy@...il.com, rjw@...k.pl,
	netdev@...r.kernel.org
Subject: Re: [PATCH] sky2: safer transmit ring cleaning

On Tue, 12 Jan 2010 11:32:45 -0500
Michael Breuer <mbreuer@...jas.com> wrote:

> On 01/12/2010 11:15 AM, Stephen Hemminger wrote:
> > This code makes transmit path and transmit reset safer by:
> >    * adding memory barrier before checking available ring slots
> >    * reseting state of tx ring elements after free
> >    * seperate cleanup function from ring done function
> >    * removing mostly unused tx_next element
> >
> >
> >    
> Stephen,
> 
> Just want to confirm that this supersedes both of the patches I'm 
> currently running with:
> 
> 1. skb_may_pull
> 2. Nash patch

You want:
  1. AF_PACKET patch that makes sure skb is not modified after send
  2. This patch.
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