netdev - Re: [PATCH RFC net-next 00/11] udp gso

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Message-ID: <20180903114540.GA8269@oracle.com>
Date:   Mon, 3 Sep 2018 07:45:40 -0400
From:   Sowmini Varadhan <sowmini.varadhan@...cle.com>
To:     Steffen Klassert <steffen.klassert@...unet.com>
Cc:     Willem de Bruijn <willemdebruijn.kernel@...il.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Network Development <netdev@...r.kernel.org>,
        Willem de Bruijn <willemb@...gle.com>,
        alexander.h.duyck@...el.com
Subject: Re: [PATCH RFC net-next 00/11] udp gso

On (09/03/18 10:02), Steffen Klassert wrote:
> I'm working on patches that builds such skb lists. The list is chained
> at the frag_list pointer of the first skb, all subsequent skbs are linked
> to the next pointer of the skb. It looks like this:

there are some risks to using the frag_list pointer, Alex Duyck
had pointed this out to me in 
  https://www.mail-archive.com/netdev@vger.kernel.org/msg131081.html
(see last paragraph, or search for the string "gotcha" there)

I dont know the details of your playground patch, but might want to
watch out for those to make sure it is immune to these issues..

--Sowmini