netdev - Re: [PATCH net-next 0/7] net: xdp: Add missing metadata support for some xdp drvs

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Message-ID: <6259af5f-f518-4f88-ada9-31c3425ce6ed@redhat.com>
Date: Tue, 18 Mar 2025 11:13:20 +0100
From: Paolo Abeni <pabeni@...hat.com>
To: Lorenzo Bianconi <lorenzo@...nel.org>,
 Marcin Wojtas <marcin.s.wojtas@...il.com>,
 Andrew Lunn <andrew+netdev@...n.ch>, "David S. Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Alexei Starovoitov <ast@...nel.org>,
 Daniel Borkmann <daniel@...earbox.net>,
 Jesper Dangaard Brouer <hawk@...nel.org>,
 John Fastabend <john.fastabend@...il.com>,
 Russell King <linux@...linux.org.uk>,
 Ilias Apalodimas <ilias.apalodimas@...aro.org>,
 Masahisa Kojima <kojima.masahisa@...ionext.com>,
 Sunil Goutham <sgoutham@...vell.com>, Geetha sowjanya <gakula@...vell.com>,
 Subbaraya Sundeep <sbhatta@...vell.com>, hariprasad <hkelam@...vell.com>,
 Bharat Bhushan <bbhushan2@...vell.com>, Felix Fietkau <nbd@....name>,
 Sean Wang <sean.wang@...iatek.com>, Matthias Brugger
 <matthias.bgg@...il.com>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
 "K. Y. Srinivasan" <kys@...rosoft.com>,
 Haiyang Zhang <haiyangz@...rosoft.com>, Wei Liu <wei.liu@...nel.org>,
 Dexuan Cui <decui@...rosoft.com>, Siddharth Vadapalli <s-vadapalli@...com>,
 Roger Quadros <rogerq@...nel.org>
Cc: netdev@...r.kernel.org, bpf@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org,
 linux-hyperv@...r.kernel.org, linux-omap@...r.kernel.org
Subject: Re: [PATCH net-next 0/7] net: xdp: Add missing metadata support for
 some xdp drvs

On 3/11/25 1:18 PM, Lorenzo Bianconi wrote:
> Introduce missing metadata support for some xdp drivers setting metadata
> size building the skb from xdp_buff.
> Please note most of the drivers are just compile tested.

I'm sorry, but you should at very least report explicitly on per patch
basis which ones have been compile tested.

Even better, please additionally document in each patch why/how the
current headroom is large enough.

Thanks,

Paolo