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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 EE060C433DF for ; Wed, 20 May 2020 13:34:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B29EC205CB for ; Wed, 20 May 2020 13:34:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="LVG/t3uj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726720AbgETNeA (ORCPT ); Wed, 20 May 2020 09:34:00 -0400 Received: from merlin.infradead.org ([205.233.59.134]:43584 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726439AbgETNd7 (ORCPT ); Wed, 20 May 2020 09:33:59 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=khD7IwQGXAJ9eP3budqJrl0fOr73NVefQ4qY+eMsteM=; b=LVG/t3uj+BR9wqtvbVwDWeIzQ5 Elx0ctQSChldKrgx1TarV3++eNCNAU0Z2yeJ/jPN2fFkOHKxrqoy7ieA1eSovpieSKexchF1tcg3j sllLEQzu4ztMSpct4bA8Gb9NQqxciS+29KUbn6tuBIWhTUc2gIY2JbwZDIRpd6cDvuPjJhYXvqePS YlaZ0D1yytEwPg7MzEcqKc9TF3Usbw2kbdHD+U2tz42kMjnLSxr2HGUmqNVZXzQzE+7clTHyVWbyM 20e7ZsqYT+DXfmvCs+Rt5uPwbJO4/EYe/LSN1DTKLZog6E+gv9MtP6IHZ//kkh9H1MgIuEuCWObsM QbH7jCPg==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jbOr1-0001Tc-GP; Wed, 20 May 2020 13:33:51 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 427133007CD; Wed, 20 May 2020 15:33:50 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 32EE529DB50F7; Wed, 20 May 2020 15:33:50 +0200 (CEST) Date: Wed, 20 May 2020 15:33:50 +0200 From: Peter Zijlstra To: Wojciech Kudla Cc: linux-kernel@vger.kernel.org, Thomas Gleixner , Nadav Amit , Greg Kroah-Hartman Subject: Re: [PATCH] smp: generic ipi_raise tracepoint Message-ID: <20200520133350.GN317569@hirez.programming.kicks-ass.net> References: <02b57f31-fc0c-df35-57bf-e0a297a7e6c4@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <02b57f31-fc0c-df35-57bf-e0a297a7e6c4@gmail.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 20, 2020 at 02:17:21PM +0100, Wojciech Kudla wrote: > Preliminary discussion: https://lkml.org/lkml/2020/5/13/1327 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. > This patch avoids introducing arch-specific trace points by leveraging > existing definition for ipi_raise. > +static const char *ipi_reason_missing __tracepoint_string = ""; That is a pretty crap reason ;-)