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 46D8DC433EF for ; Fri, 4 Feb 2022 23:36:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378197AbiBDXgB (ORCPT ); Fri, 4 Feb 2022 18:36:01 -0500 Received: from mga18.intel.com ([134.134.136.126]:48189 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231367AbiBDXf7 (ORCPT ); Fri, 4 Feb 2022 18:35:59 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1644017759; x=1675553759; h=date:from:to:cc:subject:message-id:mime-version; bh=M9wPMFyv7fuslXfnUJ34OScj+CJGAXieFhwUhiLYLFQ=; b=OQYG7S8gCWGwSSKozrDglN+iQyY4LmiUrWp5k8qlW+0Cu+ol9Gw3Jlfa l1n8jz/ZpSHCMoaubbHXHKEI67CZE/Ytu8/l+i6V5gl7BkOT3LswF/zZf GMOdt3ab2t3WkC069VUIPlNu39cdWdDDopGo9khjqkjml3UirODRHZSSD lBR9/ftgbbEASLOH6WDrLAbBVNwrkAi4HTT9yyMj0g7ayWV2MzfEw4ywc 5uzpKCWUT1NE5TXIazQeEzKyxCw8MsOB2Udi0GzJp0a+kauDyFCUzMPB2 MtwARHaya5OzEijor/2XtswXbgRq3d5eE9EXr9z9FTqSOvhDL/5cW1YHc Q==; X-IronPort-AV: E=McAfee;i="6200,9189,10248"; a="232027525" X-IronPort-AV: E=Sophos;i="5.88,344,1635231600"; d="scan'208";a="232027525" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Feb 2022 15:35:58 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,344,1635231600"; d="scan'208";a="627925865" Received: from lkp-server01.sh.intel.com (HELO 276f1b88eecb) ([10.239.97.150]) by fmsmga002.fm.intel.com with ESMTP; 04 Feb 2022 15:35:57 -0800 Received: from kbuild by 276f1b88eecb with local (Exim 4.92) (envelope-from ) id 1nG87Q-000YJf-NY; Fri, 04 Feb 2022 23:35:56 +0000 Date: Sat, 5 Feb 2022 07:35:25 +0800 From: kernel test robot To: Mark Rutland Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: [mark:arm64/preempt-dynamic-static-key 7/7] kernel/rcu/rcutorture.c:408:3: error: implicit declaration of function 'preempt_schedule' Message-ID: <202202050711.Ze2cgnZY-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git arm64/preempt-dynamic-static-key head: fb01536865a3af674b204f6d0fe0935264c4b434 commit: fb01536865a3af674b204f6d0fe0935264c4b434 [7/7] arm64: support PREEMPT_DYNAMIC config: arm64-randconfig-r025-20220131 (https://download.01.org/0day-ci/archive/20220205/202202050711.Ze2cgnZY-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a73e4ce6a59b01f0e37037761c1e6889d539d233) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/commit/?id=fb01536865a3af674b204f6d0fe0935264c4b434 git remote add mark https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git git fetch --no-tags mark arm64/preempt-dynamic-static-key git checkout fb01536865a3af674b204f6d0fe0935264c4b434 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): >> kernel/rcu/rcutorture.c:408:3: error: implicit declaration of function 'preempt_schedule' [-Werror,-Wimplicit-function-declaration] torture_preempt_schedule(); /* QS only if preemptible. */ ^ include/linux/torture.h:121:36: note: expanded from macro 'torture_preempt_schedule' #define torture_preempt_schedule() preempt_schedule() ^ kernel/rcu/rcutorture.c:408:3: note: did you mean 'preempt_schedule_irq'? include/linux/torture.h:121:36: note: expanded from macro 'torture_preempt_schedule' #define torture_preempt_schedule() preempt_schedule() ^ include/linux/sched.h:296:17: note: 'preempt_schedule_irq' declared here asmlinkage void preempt_schedule_irq(void); ^ kernel/rcu/rcutorture.c:2087:5: error: implicit declaration of function 'preempt_schedule' [-Werror,-Wimplicit-function-declaration] preempt_schedule(); ^ 2 errors generated. vim +/preempt_schedule +408 kernel/rcu/rcutorture.c 72e9bb549280b3 kernel/rcutorture.c Paul E. McKenney 2006-06-27 376 c116dba68d1924 kernel/rcu/rcutorture.c Paul E. McKenney 2018-07-13 377 static void c116dba68d1924 kernel/rcu/rcutorture.c Paul E. McKenney 2018-07-13 378 rcu_read_delay(struct torture_random_state *rrsp, struct rt_read_seg *rtrsp) b2896d2e75c87e kernel/rcutorture.c Paul E. McKenney 2006-10-04 379 { d0af39e89ec59f kernel/rcu/rcutorture.c Paul E. McKenney 2016-10-10 380 unsigned long started; d0af39e89ec59f kernel/rcu/rcutorture.c Paul E. McKenney 2016-10-10 381 unsigned long completed; b8d57a76d9f92a kernel/rcutorture.c Josh Triplett 2009-09-08 382 const unsigned long shortdelay_us = 200; 1e69676592edaf kernel/rcu/rcutorture.c Paul E. McKenney 2018-07-20 383 unsigned long longdelay_ms = 300; d0af39e89ec59f kernel/rcu/rcutorture.c Paul E. McKenney 2016-10-10 384 unsigned long long ts; b2896d2e75c87e kernel/rcutorture.c Paul E. McKenney 2006-10-04 385 b8d57a76d9f92a kernel/rcutorture.c Josh Triplett 2009-09-08 386 /* We want a short delay sometimes to make a reader delay the grace b8d57a76d9f92a kernel/rcutorture.c Josh Triplett 2009-09-08 387 * period, and we want a long delay occasionally to trigger b8d57a76d9f92a kernel/rcutorture.c Josh Triplett 2009-09-08 388 * force_quiescent_state. */ b2896d2e75c87e kernel/rcutorture.c Paul E. McKenney 2006-10-04 389 102c14d2f87976 kernel/rcu/rcutorture.c Paul E. McKenney 2019-12-21 390 if (!READ_ONCE(rcu_fwd_cb_nodelay) && 4871848531af1d kernel/rcu/rcutorture.c Paul E. McKenney 2018-08-15 391 !(torture_random(rrsp) % (nrealreaders * 2000 * longdelay_ms))) { 17ef2fe97c8c8e kernel/rcu/rcutorture.c Paul E. McKenney 2018-04-27 392 started = cur_ops->get_gp_seq(); d0af39e89ec59f kernel/rcu/rcutorture.c Paul E. McKenney 2016-10-10 393 ts = rcu_trace_clock_local(); 1e69676592edaf kernel/rcu/rcutorture.c Paul E. McKenney 2018-07-20 394 if (preempt_count() & (SOFTIRQ_MASK | HARDIRQ_MASK)) 1e69676592edaf kernel/rcu/rcutorture.c Paul E. McKenney 2018-07-20 395 longdelay_ms = 5; /* Avoid triggering BH limits. */ b8d57a76d9f92a kernel/rcutorture.c Josh Triplett 2009-09-08 396 mdelay(longdelay_ms); c116dba68d1924 kernel/rcu/rcutorture.c Paul E. McKenney 2018-07-13 397 rtrsp->rt_delay_ms = longdelay_ms; 17ef2fe97c8c8e kernel/rcu/rcutorture.c Paul E. McKenney 2018-04-27 398 completed = cur_ops->get_gp_seq(); d0af39e89ec59f kernel/rcu/rcutorture.c Paul E. McKenney 2016-10-10 399 do_trace_rcu_torture_read(cur_ops->name, NULL, ts, d0af39e89ec59f kernel/rcu/rcutorture.c Paul E. McKenney 2016-10-10 400 started, completed); d0af39e89ec59f kernel/rcu/rcutorture.c Paul E. McKenney 2016-10-10 401 } c116dba68d1924 kernel/rcu/rcutorture.c Paul E. McKenney 2018-07-13 402 if (!(torture_random(rrsp) % (nrealreaders * 2 * shortdelay_us))) { b8d57a76d9f92a kernel/rcutorture.c Josh Triplett 2009-09-08 403 udelay(shortdelay_us); c116dba68d1924 kernel/rcu/rcutorture.c Paul E. McKenney 2018-07-13 404 rtrsp->rt_delay_us = shortdelay_us; c116dba68d1924 kernel/rcu/rcutorture.c Paul E. McKenney 2018-07-13 405 } 51b1130eb5823d kernel/rcu/rcutorture.c Paul E. McKenney 2014-01-27 406 if (!preempt_count() && c116dba68d1924 kernel/rcu/rcutorture.c Paul E. McKenney 2018-07-13 407 !(torture_random(rrsp) % (nrealreaders * 500))) { cc1321c96f8555 kernel/rcu/rcutorture.c Paul E. McKenney 2017-10-16 @408 torture_preempt_schedule(); /* QS only if preemptible. */ c116dba68d1924 kernel/rcu/rcutorture.c Paul E. McKenney 2018-07-13 409 rtrsp->rt_preempted = true; c116dba68d1924 kernel/rcu/rcutorture.c Paul E. McKenney 2018-07-13 410 } b2896d2e75c87e kernel/rcutorture.c Paul E. McKenney 2006-10-04 411 } b2896d2e75c87e kernel/rcutorture.c Paul E. McKenney 2006-10-04 412 :::::: The code at line 408 was first introduced by commit :::::: cc1321c96f855525fbd847fec130f000daa1bb1f torture: Reduce #ifdefs for preempt_schedule() :::::: TO: Paul E. McKenney :::::: CC: Paul E. McKenney --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org