netdev - Re: [PATCH bpf-next v2 14/16] bpf, verifier: Track when data

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Message-ID: <53f4ed220bbdfd1828dc5a54b9392e532ad9d9b6.camel@gmail.com>
Date: Mon, 05 Jan 2026 10:48:09 -0800
From: Eduard Zingerman <eddyz87@...il.com>
To: Jakub Sitnicki <jakub@...udflare.com>, bpf@...r.kernel.org
Cc: netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>, Eric
 Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo
 Abeni <pabeni@...hat.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>, Simon Horman <horms@...nel.org>, Andrii Nakryiko	
 <andrii@...nel.org>, Martin KaFai Lau <martin.lau@...ux.dev>, 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>, 	kernel-team@...udflare.com
Subject: Re: [PATCH bpf-next v2 14/16] bpf, verifier: Track when data_meta
 pointer is loaded

On Mon, 2026-01-05 at 13:14 +0100, Jakub Sitnicki wrote:
> Introduce PA_F_DATA_META_LOAD flag to track when a BPF program loads the
> skb->data_meta pointer.
> 
> This information will be used by gen_prologue() to handle cases where there
> is a gap between metadata end and skb->data, requiring metadata to be
> realigned.
> 
> Signed-off-by: Jakub Sitnicki <jakub@...udflare.com>
> ---

Reviewed-by: Eduard Zingerman <eddyz87@...il.com>

[...]