From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EAC062CA7 for ; Thu, 11 Aug 2022 17:07:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1660237630; x=1691773630; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=hECvO7Fdc4M8tAdkGpZzwdSY9HXo0T7T/J/5VkraXNo=; b=LHxJJv/ALeb78YSsc02lFx3Xl1gLGa4n1i+YvabGQRP2McYw1iuP/8mj 0Kjby0nnuBj5ve6ZdoW/MR14wWfzZvtuF9GhB4g8WAeKKWFZn18njCipF DQqmRQ/CzNEaWFpKlzYKblU8wG4i5aA2xhqsINT/PABipFlggFB3aC6+C ndgGV5gft+U2KtO8R3O9uhxcaBxUImA8Sb1fu7hf1cJiFHK7dLC4LXq6h xQ1Ak5loLshjbX8aZH6ZMNvvLfQn4MrjXnhiDTTZiJpCCvTHMcYeSfn0t /IouEJNrHCC1IXWwh8yuLtpUWhNLi1VCqSph/JXAjpdA7GpQPXv7Wnfdj g==; X-IronPort-AV: E=McAfee;i="6400,9594,10436"; a="355411375" X-IronPort-AV: E=Sophos;i="5.93,230,1654585200"; d="scan'208";a="355411375" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Aug 2022 10:06:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,230,1654585200"; d="scan'208";a="638590021" Received: from lkp-server02.sh.intel.com (HELO cfab306db114) ([10.239.97.151]) by orsmga001.jf.intel.com with ESMTP; 11 Aug 2022 10:06:57 -0700 Received: from kbuild by cfab306db114 with local (Exim 4.96) (envelope-from ) id 1oMBe5-0000Qx-0E; Thu, 11 Aug 2022 17:06:57 +0000 Date: Fri, 12 Aug 2022 01:06:20 +0800 From: kernel test robot To: John Stultz Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org Subject: Re: [RFC][PATCH 1/2] sched: Avoid placing RT threads on cores handling long softirqs Message-ID: <202208120033.qCqng8xp-lkp@intel.com> References: <20220811015758.3001641-2-jstultz@google.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220811015758.3001641-2-jstultz@google.com> Hi John, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on tip/sched/core] [also build test WARNING on linus/master v5.19 next-20220811] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/John-Stultz/Softirq-rt-Optimizations/20220811-100030 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 8648f92a66a323ed01903d2cbb248cdbe2f312d9 config: arm64-randconfig-r002-20220810 (https://download.01.org/0day-ci/archive/20220812/202208120033.qCqng8xp-lkp@intel.com/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 5f1c7e2cc5a3c07cbc2412e851a7283c1841f520) 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://github.com/intel-lab-lkp/linux/commit/3fceb870d95188903796394cbe5fd2493ee872c6 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review John-Stultz/Softirq-rt-Optimizations/20220811-100030 git checkout 3fceb870d95188903796394cbe5fd2493ee872c6 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash kernel/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from kernel/sched/build_policy.c:45: >> kernel/sched/rt.c:1634:6: warning: no previous prototype for function 'rt_task_fits_capacity_and_may_preempt' [-Wmissing-prototypes] bool rt_task_fits_capacity_and_may_preempt(struct task_struct *p, int cpu) ^ kernel/sched/rt.c:1634:1: note: declare 'static' if the function is not intended to be used outside of this translation unit bool rt_task_fits_capacity_and_may_preempt(struct task_struct *p, int cpu) ^ static 1 warning generated. vim +/rt_task_fits_capacity_and_may_preempt +1634 kernel/sched/rt.c 1633 > 1634 bool rt_task_fits_capacity_and_may_preempt(struct task_struct *p, int cpu) 1635 { 1636 return task_may_preempt(p, cpu) && rt_task_fits_capacity(p, cpu); 1637 } 1638 -- 0-DAY CI Kernel Test Service https://01.org/lkp