From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2A47EC5519F for ; Fri, 13 Nov 2020 00:50:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C95062222F for ; Fri, 13 Nov 2020 00:50:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="KqhUIIpi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726069AbgKMAuY (ORCPT ); Thu, 12 Nov 2020 19:50:24 -0500 Received: from mail.kernel.org ([198.145.29.99]:55746 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725929AbgKMAuY (ORCPT ); Thu, 12 Nov 2020 19:50:24 -0500 Content-Type: text/plain; charset="utf-8" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1605228623; bh=Xd5YokKq6qMNa2AmgSJpvd4K27kZW++ocW2O0TBaN0Q=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=KqhUIIpiGFZrKjqFtkgM5TP7U+iOc1h8K+W6vMrzsFYIF/YmPxah8yYKJJpkhzg2K FaQoLzjkFrHx9E5IOvCXKy40vqU+mEcTrsHPtmsDfNKueDAWT4LmWm+S9e/gcxnF9t 7XPrs/WUU7Tt9m/KPSO51Ggn1nSISNPHoZfmZiic= MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH v2 bpf-next 0/3] bpf: Pointers beyond packet end. From: patchwork-bot+netdevbpf@kernel.org Message-Id: <160522862359.16152.6052930683052275005.git-patchwork-notify@kernel.org> Date: Fri, 13 Nov 2020 00:50:23 +0000 References: <20201111031213.25109-1-alexei.starovoitov@gmail.com> In-Reply-To: <20201111031213.25109-1-alexei.starovoitov@gmail.com> To: Alexei Starovoitov Cc: davem@davemloft.net, daniel@iogearbox.net, netdev@vger.kernel.org, bpf@vger.kernel.org, kernel-team@fb.com Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Hello: This series was applied to bpf/bpf-next.git (refs/heads/master): On Tue, 10 Nov 2020 19:12:10 -0800 you wrote: > From: Alexei Starovoitov > > v1->v2: > - removed set-but-unused variable. > - added Jiri's Tested-by. > > In some cases LLVM uses the knowledge that branch is taken to optimze the code > which causes the verifier to reject valid programs. > Teach the verifier to recognize that > r1 = skb->data; > r1 += 10; > r2 = skb->data_end; > if (r1 > r2) { > here r1 points beyond packet_end and subsequent > if (r1 > r2) // always evaluates to "true". > } > > [...] Here is the summary with links: - [v2,bpf-next,1/3] bpf: Support for pointers beyond pkt_end. https://git.kernel.org/bpf/bpf-next/c/6d94e741a8ff - [v2,bpf-next,2/3] selftests/bpf: Add skb_pkt_end test https://git.kernel.org/bpf/bpf-next/c/9cc873e85800 - [v2,bpf-next,3/3] selftests/bpf: Add asm tests for pkt vs pkt_end comparison. https://git.kernel.org/bpf/bpf-next/c/cb62d34019d9 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html