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=-2.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 ED0F1C433E0 for ; Wed, 20 May 2020 13:42:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B9E05207D3 for ; Wed, 20 May 2020 13:42:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="tZoRwbr4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726805AbgETNmN (ORCPT ); Wed, 20 May 2020 09:42:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48824 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726486AbgETNmN (ORCPT ); Wed, 20 May 2020 09:42:13 -0400 Received: from mail-wm1-x343.google.com (mail-wm1-x343.google.com [IPv6:2a00:1450:4864:20::343]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BCBF4C061A0E for ; Wed, 20 May 2020 06:42:12 -0700 (PDT) Received: by mail-wm1-x343.google.com with SMTP id f134so2586578wmf.1 for ; Wed, 20 May 2020 06:42:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=efHK0heU4u9WESqVZnTHKTlmxXTjN8bkm8eZD21cGM4=; b=tZoRwbr4ohqTaH4zK+LndEcka8bIwk/1CAJHJZAhOiYlqjao3Da0CALFxao/kyGrar hhJcVPMkCOVh0bmUj5FDihn+pjhIjhaO/LPbUr0pyMIlidxl+n3D2DeEI3fNDRfCCT56 yZQuNDgQQX0iKoGMCo7WxP0BJBHsYi5rg5oi/2bFERWaPA99JXVOhry5FIUQHr/Lows7 cgWU+gNG+5WB7KYZb0dVzZvep5ZF1RZNnD1mybrRRbiSEXNZdzJu+1B2WDVAMnTeEBYQ OSNhuGBtCgae2v5xTHfpJoFZKIZ0ZQiiKxT9FD2ypRE3Z0Kd56pHQw6eTk5lhAuAmr0N 860Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=efHK0heU4u9WESqVZnTHKTlmxXTjN8bkm8eZD21cGM4=; b=JuwAf/A7BvQFGPl7kHW/28OvizLlvT9fR47rJPt3q2dQ0a4nrO//sbmE52gQS2vmKo wZfRVpSuSzye37C2FgKiltaG7YXAntrvXt4eYZQr7e36LZxEEa75cvHtt9warLVkStPK lJfG4C1XAs4rZYkEPU0fOP8Lis/wzxrLq9XBntNnOfisZzN8KMo+rHeqsf9M2E4D5XfZ XqFsJK8MRVrTYUpTb/SlIE3nLQMv8hZ0Ep8dCNmeOV1LkwdSx4NXR5j95TmeTITQ6Ip7 3YbuAJpY7tNLr+KL4CAaIWxObqBQ9hoWVjCuof5AEmZsDY/HWT/GigTqr2qAG2nb56pF N0rA== X-Gm-Message-State: AOAM532uUb65aK8BJlqYvLuuPTHz6QhTeWYvwcKSq+p5SNxTqIDrLhSh ggfMtSEWnq++AHqEa96VNJ4= X-Google-Smtp-Source: ABdhPJyvONEEY5aIfYC/HYtbCMXbJkGB4yJbpqS3K5xs7h3w0l2KvJuZ5lJbBFWB3hdP+nM2QXCOcw== X-Received: by 2002:a1c:408:: with SMTP id 8mr4399166wme.147.1589982131500; Wed, 20 May 2020 06:42:11 -0700 (PDT) Received: from ?IPv6:2a00:23c6:9e09:2900:4423:7d1b:b637:c183? ([2a00:23c6:9e09:2900:4423:7d1b:b637:c183]) by smtp.gmail.com with ESMTPSA id h133sm3259161wmf.25.2020.05.20.06.42.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 20 May 2020 06:42:11 -0700 (PDT) Subject: Re: [PATCH] smp: generic ipi_raise tracepoint To: Peter Zijlstra Cc: linux-kernel@vger.kernel.org, Thomas Gleixner , Nadav Amit , Greg Kroah-Hartman References: <02b57f31-fc0c-df35-57bf-e0a297a7e6c4@gmail.com> <20200520133350.GN317569@hirez.programming.kicks-ass.net> From: Wojciech Kudla Message-ID: Date: Wed, 20 May 2020 14:42:10 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <20200520133350.GN317569@hirez.programming.kicks-ass.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 20/05/2020 14:33, Peter Zijlstra wrote: > We have bright shiny links like: https://lkml.kernel.org/r/$MSG-ID for > that. they allow me to go find the email in my local archive without > having to use a browser. Apologies, beginner's mistake. >> +static const char *ipi_reason_missing __tracepoint_string = ""; > > That is a pretty crap reason ;-) > I knew this was a long shot. There is no obvious way to get/infer ipi reason in generic smp code at the moment. Any suggestions what we can put here in the meantime? Would "none" be more appropriate?