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([2620:10d:c090:500::2:d7b1]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-121f1220a05sm1139671c88.4.2026.01.05.10.48.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Jan 2026 10:48:12 -0800 (PST) Message-ID: <53f4ed220bbdfd1828dc5a54b9392e532ad9d9b6.camel@gmail.com> Subject: Re: [PATCH bpf-next v2 14/16] bpf, verifier: Track when data_meta pointer is loaded From: Eduard Zingerman To: Jakub Sitnicki , bpf@vger.kernel.org Cc: netdev@vger.kernel.org, "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Stanislav Fomichev , Simon Horman , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , KP Singh , Hao Luo , Jiri Olsa , kernel-team@cloudflare.com Date: Mon, 05 Jan 2026 10:48:09 -0800 In-Reply-To: <20260105-skb-meta-safeproof-netdevs-rx-only-v2-14-a21e679b5afa@cloudflare.com> References: <20260105-skb-meta-safeproof-netdevs-rx-only-v2-0-a21e679b5afa@cloudflare.com> <20260105-skb-meta-safeproof-netdevs-rx-only-v2-14-a21e679b5afa@cloudflare.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.2 (3.58.2-1.fc43) Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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. >=20 > This information will be used by gen_prologue() to handle cases where the= re > is a gap between metadata end and skb->data, requiring metadata to be > realigned. >=20 > Signed-off-by: Jakub Sitnicki > --- Reviewed-by: Eduard Zingerman [...]