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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A773FC433EF for ; Sat, 8 Jan 2022 04:28:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229814AbiAHE2y (ORCPT ); Fri, 7 Jan 2022 23:28:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34956 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229527AbiAHE2w (ORCPT ); Fri, 7 Jan 2022 23:28:52 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5DAFFC061574 for ; Fri, 7 Jan 2022 20:28:52 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 01B22B82627 for ; Sat, 8 Jan 2022 04:28:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 99B49C36AE0; Sat, 8 Jan 2022 04:28:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1641616129; bh=00KpkfETKBNFzTQ2r0RXyaLcukVc2JqwH1AAYaCfME4=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:From; b=ZWMPriyYR1YuCWkV7d1zhgBqZHQ2ka7lkqpJuM3LHyrNUAip4Ws3Bixh7cG9sPriz H2mOuEStYl3BCyuCsTWIIsLlWPx6EdR/5oHK5KNeDWqyVmEEl9I1x1I8a4ev/omSiH p3g9sFBQnEgCT+f+UdnLslKgaz5mgHYH9u1S/J6RrkkJX7hlksXFZdg9w8iOKmRiyB zXGjl/S3Ozp25V3eGOnE2MbXYY9FmPK8qIilMGM9xyib5fCL+xejhUp6wPavlZeyxI AUACnYr05QooWxKTGpvU3g7DmqusJjeGaic5q9qk9p1a2NFippIifz+uRY4cbGKNQr IWxLyhYPnkhnw== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id 5111E5C1AB8; Fri, 7 Jan 2022 20:28:49 -0800 (PST) Date: Fri, 7 Jan 2022 20:28:49 -0800 From: "Paul E. McKenney" To: kernel test robot Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: Re: [paulmck-rcu:dev.2022.01.04a 55/55] kernel/time/timer.c:1776:6: warning: no previous prototype for 'tick_setup_sched_timer_dump' Message-ID: <20220108042849.GS4202@paulmck-ThinkPad-P17-Gen-1> Reply-To: paulmck@kernel.org References: <202201080834.rGuSv2SS-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202201080834.rGuSv2SS-lkp@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jan 08, 2022 at 08:41:32AM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2022.01.04a > head: 64595d0dff992756e8c6d53c0e9f1e3e50c451f7 > commit: 64595d0dff992756e8c6d53c0e9f1e3e50c451f7 [55/55] squash! EXP timers: Non-nohz_full last-resort jiffies update on IRQ entry > config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20220108/202201080834.rGuSv2SS-lkp@intel.com/config) > compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 > reproduce (this is a W=1 build): > # https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git/commit/?id=64595d0dff992756e8c6d53c0e9f1e3e50c451f7 > git remote add paulmck-rcu https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git > git fetch --no-tags paulmck-rcu dev.2022.01.04a > git checkout 64595d0dff992756e8c6d53c0e9f1e3e50c451f7 > # save the config file to linux build tree > mkdir build_dir > make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash kernel/time/ > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot Good catch, but this was due to debug code that has since been removed. Thanx, Paul > All warnings (new ones prefixed by >>): > > kernel/time/timer.c:254:5: warning: no previous prototype for 'timer_migration_handler' [-Wmissing-prototypes] > 254 | int timer_migration_handler(struct ctl_table *table, int write, > | ^~~~~~~~~~~~~~~~~~~~~~~ > >> kernel/time/timer.c:1776:6: warning: no previous prototype for 'tick_setup_sched_timer_dump' [-Wmissing-prototypes] > 1776 | void tick_setup_sched_timer_dump(void) > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ > > > vim +/tick_setup_sched_timer_dump +1776 kernel/time/timer.c > > 1775 > > 1776 void tick_setup_sched_timer_dump(void) > 1777 { > 1778 int cpu; > 1779 int j = jiffies; > 1780 > 1781 pr_alert("%s state", __func__); > 1782 for_each_possible_cpu(cpu) > 1783 pr_cont(" j/c %x/%d %c", > 1784 (int)(j - per_cpu(tick_setup_sched_timer_jiffies, cpu)) & 0xfff, > 1785 per_cpu(tick_setup_sched_timer_jiffies_count, cpu), > 1786 ".H"[per_cpu(tick_setup_sched_timer_help_needed, cpu)]); > 1787 pr_cont("\n"); > 1788 } > 1789 > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org