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Date:   Sun, 17 May 2020 11:42:04 -0700
From:   Cong Wang <>
To:     Vladimir Oltean <>
Cc:     Taehee Yoo <>, Netdev <>,
        syzbot <>,
        Dmitry Vyukov <>,
        Andrew Lunn <>,
        Florian Fainelli <>,
        Vivien Didelot <>
Subject: Re: [Patch net-next v2 1/2] net: partially revert dynamic lockdep key changes

On Sat, May 16, 2020 at 9:53 AM Vladimir Oltean <> wrote:
> Thanks a lot for presenting the options. In general, xmit in DSA is
> relatively simple and most of the time stateless. My stacked DSA setup
> appears to work just fine with NETIF_F_LLTX, including the updating of
> percpu counters. I'm not really sure if there's something in
> particular to test?
> Anyway, will you send a patch with NETIF_F_LLTX or should I do it? I
> can do further testing if necessary.

If DSA is software based, there is a large chance it can be just
using NETIF_F_LLTX, like you said.

Please do send a patch for this NETIF_F_LLTX. Note my patch
simply reverts to the old code, this issue probably exists before it.


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