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Miller" , David Ahern , Eric Dumazet , Paolo Abeni , Simon Horman , Martin KaFai Lau , netdev@vger.kernel.org, bpf@vger.kernel.org, kernel-team@cloudflare.com Subject: Re: [PATCH net] net: Clear skb metadata before LWT xmit In-Reply-To: <20260430173153.5cd1d348@kernel.org> (Jakub Kicinski's message of "Thu, 30 Apr 2026 17:31:53 -0700") References: <20260428-wip-skb-local-storage-from-scratch-v1-1-8f7ca9b378ce@cloudflare.com> <20260430173153.5cd1d348@kernel.org> Date: Wed, 13 May 2026 11:17:12 +0200 Message-ID: <87jyt78y93.fsf@cloudflare.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Thu, Apr 30, 2026 at 05:31 PM -07, Jakub Kicinski wrote: > On Tue, 28 Apr 2026 21:44:37 +0200 Jakub Sitnicki wrote: >> skb metadata is meant for passing information between XDP and TC. >> LWT programs cannot access the __sk_buff->data_meta pseudo-pointer. > > netdev wasn't CCed on the sashiko reply but I think it now auto-marks > the patches as Changes Requested :| The Sashiko comments didn't seem > actionable to me. WDYT? Apologies, I completely missed your message in the chaos of the conference. I actually wanted to double-check with you and Daniel - is consuming metadata from TC egress supposed to be supported? If not, then I agree - nothing left to do about the Sashiko feedback [1]. [1] https://sashiko.dev/#/patchset/20260428-wip-skb-local-storage-from-scratch-v1-1-8f7ca9b378ce@cloudflare.com?part=1