From: Eduard Zingerman <eddyz87@gmail.com>
To: Jakub Sitnicki <jakub@cloudflare.com>, bpf@vger.kernel.org
Cc: netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Jesper Dangaard Brouer <hawk@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
Stanislav Fomichev <sdf@fomichev.me>,
Simon Horman <horms@kernel.org>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <martin.lau@linux.dev>,
Song Liu <song@kernel.org>,
Yonghong Song <yonghong.song@linux.dev>,
KP Singh <kpsingh@kernel.org>, Hao Luo <haoluo@google.com>,
Jiri Olsa <jolsa@kernel.org>,
kernel-team@cloudflare.com
Subject: Re: [PATCH bpf-next v2 14/16] bpf, verifier: Track when data_meta pointer is loaded
Date: Mon, 05 Jan 2026 10:48:09 -0800 [thread overview]
Message-ID: <53f4ed220bbdfd1828dc5a54b9392e532ad9d9b6.camel@gmail.com> (raw)
In-Reply-To: <20260105-skb-meta-safeproof-netdevs-rx-only-v2-14-a21e679b5afa@cloudflare.com>
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@cloudflare.com>
> ---
Reviewed-by: Eduard Zingerman <eddyz87@gmail.com>
[...]
next prev parent reply other threads:[~2026-01-05 18:48 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-05 12:14 [PATCH bpf-next v2 00/16] Decouple skb metadata tracking from MAC header offset Jakub Sitnicki
2026-01-05 12:14 ` [PATCH bpf-next v2 01/16] bnxt_en: Call skb_metadata_set when skb->data points at metadata end Jakub Sitnicki
2026-01-05 12:14 ` [PATCH bpf-next v2 02/16] i40e: " Jakub Sitnicki
2026-01-05 12:14 ` [PATCH bpf-next v2 03/16] igb: " Jakub Sitnicki
2026-01-05 12:14 ` [PATCH bpf-next v2 04/16] igc: " Jakub Sitnicki
2026-01-05 12:14 ` [PATCH bpf-next v2 05/16] ixgbe: " Jakub Sitnicki
2026-01-05 12:14 ` [PATCH bpf-next v2 06/16] net/mlx5e: " Jakub Sitnicki
2026-01-05 12:14 ` [PATCH bpf-next v2 07/16] veth: " Jakub Sitnicki
2026-01-05 12:14 ` [PATCH bpf-next v2 08/16] xsk: " Jakub Sitnicki
2026-01-05 12:14 ` [PATCH bpf-next v2 09/16] xdp: " Jakub Sitnicki
2026-01-05 12:14 ` [PATCH bpf-next v2 10/16] net: Track skb metadata end separately from MAC offset Jakub Sitnicki
2026-01-05 12:14 ` [PATCH bpf-next v2 11/16] bpf, verifier: Remove side effects from may_access_direct_pkt_data Jakub Sitnicki
2026-01-05 18:23 ` Eduard Zingerman
2026-01-05 12:14 ` [PATCH bpf-next v2 12/16] bpf, verifier: Turn seen_direct_write flag into a bitmap Jakub Sitnicki
2026-01-05 18:48 ` Eduard Zingerman
2026-01-05 12:14 ` [PATCH bpf-next v2 13/16] bpf, verifier: Propagate packet access flags to gen_prologue Jakub Sitnicki
2026-01-05 18:49 ` Eduard Zingerman
2026-01-05 12:14 ` [PATCH bpf-next v2 14/16] bpf, verifier: Track when data_meta pointer is loaded Jakub Sitnicki
2026-01-05 18:48 ` Eduard Zingerman [this message]
2026-01-05 12:14 ` [PATCH bpf-next v2 15/16] bpf: Realign skb metadata for TC progs using data_meta Jakub Sitnicki
2026-01-05 19:14 ` Alexei Starovoitov
2026-01-05 19:20 ` Jakub Sitnicki
2026-01-05 19:42 ` Amery Hung
2026-01-05 20:02 ` Alexei Starovoitov
2026-01-05 20:54 ` Martin KaFai Lau
2026-01-05 21:47 ` Alexei Starovoitov
2026-01-05 22:25 ` Martin KaFai Lau
2026-01-05 23:19 ` Amery Hung
2026-01-06 2:04 ` Alexei Starovoitov
2026-01-06 17:36 ` Jakub Sitnicki
2026-01-06 17:46 ` Amery Hung
2026-01-06 18:40 ` Alexei Starovoitov
2026-01-06 19:12 ` Jakub Sitnicki
2026-01-06 19:42 ` Amery Hung
2026-01-05 12:14 ` [PATCH bpf-next v2 16/16] selftests/bpf: Test skb metadata access after L2 decapsulation Jakub Sitnicki
2026-01-10 21:07 ` [PATCH bpf-next v2 00/16] Decouple skb metadata tracking from MAC header offset Jakub Sitnicki
2026-01-14 11:52 ` Jakub Sitnicki
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