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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 DBD06C76195 for ; Tue, 16 Jul 2019 22:12:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B47A921743 for ; Tue, 16 Jul 2019 22:12:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=netronome-com.20150623.gappssmtp.com header.i=@netronome-com.20150623.gappssmtp.com header.b="tmpF3sS1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387623AbfGPWM3 (ORCPT ); Tue, 16 Jul 2019 18:12:29 -0400 Received: from mail-qt1-f171.google.com ([209.85.160.171]:34731 "EHLO mail-qt1-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726549AbfGPWM3 (ORCPT ); Tue, 16 Jul 2019 18:12:29 -0400 Received: by mail-qt1-f171.google.com with SMTP id k10so21340865qtq.1 for ; Tue, 16 Jul 2019 15:12:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=netronome-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:in-reply-to:references :organization:mime-version:content-transfer-encoding; bh=qDHnXbU7Ysa2bN6UPo2OM5lnpAcBt26xw5f80BHot6g=; b=tmpF3sS1FjltK8nasdTkiYHPf/xk0xcfRlZhf76Es14vFkXe+eIpF2uHSTH8+crSoT F39lxkjb4QIu6YcUxCh0F/7qJhzF6wtfHKfbwEPpave7CQoNsVlkTDZoqLoGEbClSJKE 7FqN/icVRR1o8OPfM/RQcvu7p5uZrqsyM8fk4fFqyfQbox7QA7tJgUV64n6Tw9HNP0Mp s+J0yLx6mPGHUwn6hq/0rdTrRncAR+TlqAC4Lw7IhgFojbNFXJWGWeZo8Ywe5Mz/DWaX alLqHEhWmEhuin6ZRchS6v+TtgY/Fqs66dpTdiPBueSlrf+iaAldXEvvf3S8Nd/gMFqc EGDA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:organization:mime-version:content-transfer-encoding; bh=qDHnXbU7Ysa2bN6UPo2OM5lnpAcBt26xw5f80BHot6g=; b=ZapkRaBwuoSrNwexRMvJ+s84ajgdMUWGyrtBG/VZfGIZ2w0XNrnwFldgj5cVbx0RX5 hi64UK6jL7IEEFX+k3g0EQgBvpdA7UmsWoe7eQhutLNdAM8NcLqn0Ix6vENaiTb9bAVw Q0ekKLmIOIvX1h4h+od5inGju+etJNkuihprTLNmvLCzl07ldWO+ec30TKlKsuB7hTJp AY1KrWifcclKkBwdxk27AfcQ+DDwrl6K83Uc6QfME5jtQBq3y1Xr1722VT15jojRx38g 2bgZgUV5oV/bNoBvvQ8BO7eRwuikypnogx1S/zNLVW315V1Kyci7JTn4xSVf2Oj9kWsM ZT+w== X-Gm-Message-State: APjAAAU2ctvf8Q1gnfE+lLNoF4On23M70u55IbhQ1wrZcM3mcg9pJx0t xz2Qup7nKlR/WoKIO+Vd2T8jgA== X-Google-Smtp-Source: APXvYqyEcJ8B+1+Psk1jW1CyIaIDhqj84VlcXQpbozPYQzAnwLNGY+Bqc9BhS1ta/WJugYLis6q7sA== X-Received: by 2002:ac8:244f:: with SMTP id d15mr23913579qtd.32.1563315148694; Tue, 16 Jul 2019 15:12:28 -0700 (PDT) Received: from cakuba.netronome.com ([66.60.152.14]) by smtp.gmail.com with ESMTPSA id w24sm11757370qtb.35.2019.07.16.15.12.27 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Tue, 16 Jul 2019 15:12:28 -0700 (PDT) Date: Tue, 16 Jul 2019 15:12:23 -0700 From: Jakub Kicinski To: Alexei Starovoitov Cc: Jiong Wang , Andrii Nakryiko , Daniel Borkmann , Edward Cree , "Naveen N. Rao" , Andrii Nakryiko , bpf , Networking , oss-drivers@netronome.com, Yonghong Song Subject: Re: [RFC bpf-next 0/8] bpf: accelerate insn patching speed Message-ID: <20190716151223.7208c033@cakuba.netronome.com> In-Reply-To: <20190716161701.mk5ye47aj2slkdjp@ast-mbp.dhcp.thefacebook.com> References: <1562275611-31790-1-git-send-email-jiong.wang@netronome.com> <87r26w24v4.fsf@netronome.com> <87k1cj3b69.fsf@netronome.com> <87wogitlbi.fsf@netronome.com> <20190716161701.mk5ye47aj2slkdjp@ast-mbp.dhcp.thefacebook.com> Organization: Netronome Systems, Ltd. MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Tue, 16 Jul 2019 09:17:03 -0700, Alexei Starovoitov wrote: > I don't think we have a test for such 'dead prog only due to verifier walk' > situation. I wonder what happens :) FWIW we do have verifier and BTF self tests for dead code removal of entire subprogs! :)