netdev - Re: [PATCH bpf 0/6] Address XDP frags having negative tailroom

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Message-ID: <e7d4ff92-232c-4683-b235-aa1d75374be1@linux.dev>
Date: Wed, 4 Feb 2026 14:57:13 -0800
From: Martin KaFai Lau <martin.lau@...ux.dev>
To: Jakub Kicinski <kuba@...nel.org>
Cc: bpf@...r.kernel.org, Larysa Zaremba <larysa.zaremba@...el.com>,
 Claudiu Manoil <claudiu.manoil@....com>,
 Vladimir Oltean <vladimir.oltean@....com>, Wei Fang <wei.fang@....com>,
 Clark Wang <xiaoning.wang@....com>, Andrew Lunn <andrew+netdev@...n.ch>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Paolo Abeni <pabeni@...hat.com>, Tony Nguyen <anthony.l.nguyen@...el.com>,
 Przemek Kitszel <przemyslaw.kitszel@...el.com>,
 Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>,
 Jesper Dangaard Brouer <hawk@...nel.org>,
 John Fastabend <john.fastabend@...il.com>,
 Stanislav Fomichev <sdf@...ichev.me>, Andrii Nakryiko <andrii@...nel.org>,
 Eduard Zingerman <eddyz87@...il.com>, Song Liu <song@...nel.org>,
 Yonghong Song <yonghong.song@...ux.dev>, KP Singh <kpsingh@...nel.org>,
 Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
 Simon Horman <horms@...nel.org>, Shuah Khan <shuah@...nel.org>,
 Alexander Lobakin <aleksander.lobakin@...el.com>,
 Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
 "Bastien Curutchet (eBPF Foundation)" <bastien.curutchet@...tlin.com>,
 Tushar Vyavahare <tushar.vyavahare@...el.com>,
 Jason Xing <kernelxing@...cent.com>, Ricardo B. Marlière
 <rbm@...e.com>, Eelco Chaudron <echaudro@...hat.com>,
 Lorenzo Bianconi <lorenzo@...nel.org>,
 Toke Hoiland-Jorgensen <toke@...hat.com>, imx@...ts.linux.dev,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 intel-wired-lan@...ts.osuosl.org, linux-kselftest@...r.kernel.org,
 Aleksandr Loktionov <aleksandr.loktionov@...el.com>
Subject: Re: [PATCH bpf 0/6] Address XDP frags having negative tailroom

On 2/3/26 2:53 AM, Larysa Zaremba wrote:
> Larysa Zaremba (6):
>    xdp: produce a warning when calculated tailroom is negative
>    ice: fix rxq info registering in mbuf packets
>    ice: change XDP RxQ frag_size from DMA write length to truesize
>    i40e: use truesize as XDP RxQ info frag_size
>    idpf: use truesize as XDP RxQ info frag_size
>    net: enetc: use truesize as XDP RxQ info frag_size
> 
>   drivers/net/ethernet/freescale/enetc/enetc.c |  2 +-
>   drivers/net/ethernet/intel/i40e/i40e_main.c  |  5 ++--
>   drivers/net/ethernet/intel/ice/ice_base.c    | 26 ++++++--------------
>   drivers/net/ethernet/intel/ice/ice_xsk.c     |  3 +++
>   drivers/net/ethernet/intel/idpf/xdp.c        |  2 +-
>   net/core/filter.c                            |  3 ++-

Jakub, can you help to take it to the net tree? Thanks.