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=-7.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 3ACDFC4741C for ; Sat, 15 Feb 2020 13:17:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 056362067D for ; Sat, 15 Feb 2020 13:17:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581772639; bh=293N8vZpbSbYXZ17NvMuA4aOglrONcIcPlum3v+3Avk=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:List-ID: From; b=11ChGu5S7/2s23Yn969mlHoHC2sUALufgfeM07n/L67PpFG95V8+U0h01Tkv6/Cvh StFqMxK/c+SDgyMAi903MKpaXDylfbBs0RE5eVj/CUcHlCcPVfi5o/iPtON51MJrBx XGKXM02zloUGS1qmUzzGrDb9M3dcU7L25YslVglk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726275AbgBONPE (ORCPT ); Sat, 15 Feb 2020 08:15:04 -0500 Received: from mail.kernel.org ([198.145.29.99]:54470 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726007AbgBONPD (ORCPT ); Sat, 15 Feb 2020 08:15:03 -0500 Received: from paulmck-ThinkPad-P72.home (206-137-99-82.bluetone.cz [82.99.137.206]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CE3C52067D; Sat, 15 Feb 2020 13:15:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581772503; bh=293N8vZpbSbYXZ17NvMuA4aOglrONcIcPlum3v+3Avk=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:From; b=yVw0k5eHSgXke8HW6Pru7ePzNWnNCM/S22KqM0pKYt+rRLOCyKYxWib5fc171sfwQ s+x03rtBsyUuGOQ5oTxEFIXD4ALLJkJC2KH1+ABZ5SbfIczmzB43oKO9wgeIwudTkA 8ad4BK2FfGOkauUfYoQUYaL25YgE5RzM0NMBfxdA= Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id 65C623520CAB; Sat, 15 Feb 2020 05:15:00 -0800 (PST) Date: Sat, 15 Feb 2020 05:15:00 -0800 From: "Paul E. McKenney" To: kbuild test robot Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: Re: [rcu:dev.2020.02.12a 109/124] kernel/torture.c:239:3: error: implicit declaration of function 'rcutorture_sched_setaffinity'; did you mean '__NR_ia32_sched_setaffinity'? Message-ID: <20200215131500.GA2935@paulmck-ThinkPad-P72> Reply-To: paulmck@kernel.org References: <202002151524.4UGF8vEo%lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202002151524.4UGF8vEo%lkp@intel.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Feb 15, 2020 at 03:55:27PM +0800, kbuild test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2020.02.12a > head: 35a305226917a71de1c060db96fed0520cf644d9 > commit: bc3db9afb8492662a1108616342f288de66baa8f [109/124] EXP: rcutorture hack to force CPU hotplug onto CPU 0 > config: x86_64-randconfig-s0-20200215 (attached as .config) > compiler: gcc-7 (Debian 7.5.0-4) 7.5.0 > reproduce: > git checkout bc3db9afb8492662a1108616342f288de66baa8f > # save the attached .config to linux build tree > make ARCH=x86_64 > > If you fix the issue, kindly add following tag > Reported-by: kbuild test robot > > All errors (new ones prefixed by >>): > > kernel/torture.c: In function 'torture_onoff': > >> kernel/torture.c:239:3: error: implicit declaration of function 'rcutorture_sched_setaffinity'; did you mean '__NR_ia32_sched_setaffinity'? [-Werror=implicit-function-declaration] > rcutorture_sched_setaffinity(current->pid, cpumask_of(0)); > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ > __NR_ia32_sched_setaffinity > cc1: some warnings being treated as errors And this experimental commit is now gone from current -rcu, though you might well have a few more branches containing it in your queue. Thanx, Paul > vim +239 kernel/torture.c > > 195 > 196 /* > 197 * Execute random CPU-hotplug operations at the interval specified > 198 * by the onoff_interval. > 199 */ > 200 static int > 201 torture_onoff(void *arg) > 202 { > 203 int cpu; > 204 int maxcpu = -1; > 205 DEFINE_TORTURE_RANDOM(rand); > 206 int ret; > 207 > 208 VERBOSE_TOROUT_STRING("torture_onoff task started"); > 209 for_each_online_cpu(cpu) > 210 maxcpu = cpu; > 211 WARN_ON(maxcpu < 0); > 212 if (!IS_MODULE(CONFIG_TORTURE_TEST)) > 213 for_each_possible_cpu(cpu) { > 214 if (cpu_online(cpu)) > 215 continue; > 216 ret = cpu_up(cpu); > 217 if (ret && verbose) { > 218 pr_alert("%s" TORTURE_FLAG > 219 "%s: Initial online %d: errno %d\n", > 220 __func__, torture_type, cpu, ret); > 221 } > 222 } > 223 > 224 if (maxcpu == 0) { > 225 VERBOSE_TOROUT_STRING("Only one CPU, so CPU-hotplug testing is disabled"); > 226 goto stop; > 227 } > 228 > 229 if (onoff_holdoff > 0) { > 230 VERBOSE_TOROUT_STRING("torture_onoff begin holdoff"); > 231 schedule_timeout_interruptible(onoff_holdoff); > 232 VERBOSE_TOROUT_STRING("torture_onoff end holdoff"); > 233 } > 234 while (!torture_must_stop()) { > 235 if (disable_onoff_at_boot && !rcu_inkernel_boot_has_ended()) { > 236 schedule_timeout_interruptible(HZ / 10); > 237 continue; > 238 } > > 239 rcutorture_sched_setaffinity(current->pid, cpumask_of(0)); > 240 cpu = (torture_random(&rand) >> 4) % (maxcpu + 1); > 241 if (!torture_offline(cpu, > 242 &n_offline_attempts, &n_offline_successes, > 243 &sum_offline, &min_offline, &max_offline)) > 244 torture_online(cpu, > 245 &n_online_attempts, &n_online_successes, > 246 &sum_online, &min_online, &max_online); > 247 schedule_timeout_interruptible(onoff_interval); > 248 } > 249 > 250 stop: > 251 torture_kthread_stopping("torture_onoff"); > 252 return 0; > 253 } > 254 > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org