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Date:   Mon, 25 Apr 2022 12:05:42 -0700
From:   Peilin Ye <>
To:     Jakub Kicinski <>
Cc:     "David S. Miller" <>,
        Hideaki YOSHIFUJI <>,
        David Ahern <>,
        Paolo Abeni <>,
        Peilin Ye <>,
        Cong Wang <>,
        Eric Dumazet <>,,
Subject: Re: [PATCH net-next 0/2] Make [IP6]GRE[TAP] devices always

Hi Jakub,

On Mon, Apr 25, 2022 at 11:02:59AM -0700, Jakub Kicinski wrote:
> On Thu, 21 Apr 2022 15:43:42 -0700 Peilin Ye wrote:
> > This patchset depends on these fixes [1].  Since o_seqno is now atomic_t,
> > we can always turn on NETIF_F_LLTX for [IP6]GRE[TAP] devices, since we no
> > longer need the TX lock (&txq->_xmit_lock).
> LGTM, thanks, but please repost on Thu / Fri. The fixes make their way
> into net-next on Thu so until then we can't apply.

Thanks for the review!

> > We could probably do the same thing to [IP6]ERSPAN devices as well, but
> > I'm not familiar with them yet.  For example, ERSPAN devices are
> > initialized as |= GRE_FEATURES in erspan_tunnel_init(), but I don't see
> > IP6ERSPAN devices being initialized as |= GRE6_FEATURES.  Please suggest
> > if I'm missing something, thanks!
> Probably good to CC William when you repost.

Sure, I will resend then.

Peilin Ye

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