netdev - Re: [PATCH net-next] sfc: fix XDP-redirect in this driver

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Message-ID: <98fd3c0c-225b-d64c-a64f-ca497205d4ce@solarflare.com>
Date:   Mon, 16 Mar 2020 10:10:01 +0000
From:   Edward Cree <ecree@...arflare.com>
To:     David Miller <davem@...emloft.net>, <brouer@...hat.com>
CC:     <netdev@...r.kernel.org>, <linux-net-drivers@...arflare.com>,
        <mhabets@...arflare.com>, <cmclachlan@...arflare.com>,
        <ilias.apalodimas@...aro.org>, <lorenzo@...nel.org>,
        <sameehj@...zon.com>
Subject: Re: [PATCH net-next] sfc: fix XDP-redirect in this driver

On 16/03/2020 08:49, David Miller wrote:
> Solarflare folks, please review.
This looks like a correct implementation of what it purports to do, so
Acked-by: Edward Cree <ecree@...arflare.com>
It did take me some digging to understand _why_ it was needed though;
 Jesper, is there any documentation of the tailroom requirement?  It
 doesn't seem to be mentioned anywhere I could find.
(Is there even any up-to-date doc of the XDP driver interface?  The
 one at [1] looks a bit stale...)
-Ed

[1]: https://prototype-kernel.readthedocs.io/en/latest/networking/XDP/design/requirements.html