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 8719BC433F5 for ; Wed, 2 Mar 2022 23:55:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229766AbiCBXz6 (ORCPT ); Wed, 2 Mar 2022 18:55:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33538 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229738AbiCBXz5 (ORCPT ); Wed, 2 Mar 2022 18:55:57 -0500 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BD770131112 for ; Wed, 2 Mar 2022 15:55:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1646265313; x=1677801313; h=date:from:to:cc:subject:message-id:mime-version; bh=MhUQaja/NcVj8kw9fjRzNWwu1H0JU2FYXWCdvlaoY6k=; b=HOIjDO/CCbUYYArHDX1kr0EGRursI1wzvRYeSdYstiodv21KN8YYRBxI A+OpneKVVd4xaYDMCSq04hkisl4rG1LxzwRu/rGjD+g487P2r1RhQJkmL s9dfQ3n3MjlqYYx+QcEjnOQZxHsVTS5avtCfSiGJy2GDlNSyj4+V6FCtc MTYCU+lDz99fyixNhWky8jJKPQ8ctmgmRwiP0l9g20emzgilTTYdZ5RZQ biwTbnA+41bL0OR1dYDIPGW7px4b9JUQ2qUfnkSdEDQYzmISSV6rEbMRh EyVqrkCz763SOJaGtHdaQGr8vCwDYL8V4zKlxZ26lQNNOPceWM93T+yvo A==; X-IronPort-AV: E=McAfee;i="6200,9189,10274"; a="233496793" X-IronPort-AV: E=Sophos;i="5.90,150,1643702400"; d="scan'208";a="233496793" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Mar 2022 15:33:01 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,150,1643702400"; d="scan'208";a="594181258" Received: from lkp-server02.sh.intel.com (HELO e9605edfa585) ([10.239.97.151]) by fmsmga008.fm.intel.com with ESMTP; 02 Mar 2022 15:33:00 -0800 Received: from kbuild by e9605edfa585 with local (Exim 4.92) (envelope-from ) id 1nPYSp-00024v-Lf; Wed, 02 Mar 2022 23:32:59 +0000 Date: Thu, 3 Mar 2022 07:32:51 +0800 From: kernel test robot To: Frederic Weisbecker Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: [frederic-dynticks:rcu/context-tracking 14/19] kernel/rcu/tree_plugin.h:932:13: error: static declaration of 'rcu_preempt_deferred_qs' follows non-static declaration Message-ID: <202203030729.s3AJ15rL-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/frederic/linux-dynticks.git rcu/context-tracking head: e4eaff86ec91c1cbde9a113cf5232dac9f897337 commit: 5a91f02835a27bd066154ab87408505806710e19 [14/19] rcu/context-tracking: Move RCU-dynticks internal functions to context_tracking config: x86_64-randconfig-a015 (https://download.01.org/0day-ci/archive/20220303/202203030729.s3AJ15rL-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/frederic/linux-dynticks.git/commit/?id=5a91f02835a27bd066154ab87408505806710e19 git remote add frederic-dynticks https://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git git fetch --no-tags frederic-dynticks rcu/context-tracking git checkout 5a91f02835a27bd066154ab87408505806710e19 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=x86_64 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 >>): In file included from kernel/rcu/tree.c:4457: >> kernel/rcu/tree_plugin.h:932:13: error: static declaration of 'rcu_preempt_deferred_qs' follows non-static declaration 932 | static void rcu_preempt_deferred_qs(struct task_struct *t) | ^~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/rcupdate.h:227, from include/linux/rcupdate_wait.h:9, from kernel/rcu/tree.c:25: include/linux/rcutree.h:63:6: note: previous declaration of 'rcu_preempt_deferred_qs' was here 63 | void rcu_preempt_deferred_qs(struct task_struct *t); | ^~~~~~~~~~~~~~~~~~~~~~~ In file included from kernel/rcu/tree.c:4457: kernel/rcu/tree_plugin.h:932:13: warning: 'rcu_preempt_deferred_qs' defined but not used [-Wunused-function] 932 | static void rcu_preempt_deferred_qs(struct task_struct *t) | ^~~~~~~~~~~~~~~~~~~~~~~ vim +/rcu_preempt_deferred_qs +932 kernel/rcu/tree_plugin.h 790da248978a072 Paul E. McKenney 2021-09-29 927 790da248978a072 Paul E. McKenney 2021-09-29 928 // Except that we do need to respond to a request by an expedited grace 790da248978a072 Paul E. McKenney 2021-09-29 929 // period for a quiescent state from this CPU. Note that requests from 790da248978a072 Paul E. McKenney 2021-09-29 930 // tasks are handled when removing the task from the blocked-tasks list 790da248978a072 Paul E. McKenney 2021-09-29 931 // below. 790da248978a072 Paul E. McKenney 2021-09-29 @932 static void rcu_preempt_deferred_qs(struct task_struct *t) 790da248978a072 Paul E. McKenney 2021-09-29 933 { 790da248978a072 Paul E. McKenney 2021-09-29 934 struct rcu_data *rdp = this_cpu_ptr(&rcu_data); 790da248978a072 Paul E. McKenney 2021-09-29 935 790da248978a072 Paul E. McKenney 2021-09-29 936 if (rdp->cpu_no_qs.b.exp) 790da248978a072 Paul E. McKenney 2021-09-29 937 rcu_report_exp_rdp(rdp); 790da248978a072 Paul E. McKenney 2021-09-29 938 } 3e31009898699df Paul E. McKenney 2018-06-21 939 :::::: The code at line 932 was first introduced by commit :::::: 790da248978a0722d92d1471630c881704f7eb0d rcu: Make idle entry report expedited quiescent states :::::: 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