From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (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 220A51B7EA; Fri, 15 Mar 2024 16:36:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710520583; cv=none; b=ozqqRojh9zPm3GZPMP3jlz+968dE9zW/FB+ls2Y4f7m9IxDoyy+IBqcNjXJZjTfIhuahkTAnj6Fw8uVuCVPjCyYoWjqN0r0UMQqYJe17Vib/nGuwWOV9WOS073Gd5hBri9CSIZi3lK2cnbXLc5WyGyqVNVRoh8JTxuGp1uN81TU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710520583; c=relaxed/simple; bh=Fa9Ztd/K1MwNoFLIeksl2r8/Q4sGwApcc9Q86oCxLK4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=jagav95BoYKOTgTKGD9mz4dAgef5+6RYDETYoUwoz8IlaZmQcBLdsE76JuDuqpC+sFxHWFJVURTLOBZEIU+A46yO+hKuchKxrbY7PHVkScP+KnThanB6EhvAplZSK5qm5w3DVEmX/qNpt1yRcEF0A353bgDVgR7GcjTLc3r5bs8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=mOtSs5Dh; arc=none smtp.client-ip=192.198.163.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="mOtSs5Dh" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1710520581; x=1742056581; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=Fa9Ztd/K1MwNoFLIeksl2r8/Q4sGwApcc9Q86oCxLK4=; b=mOtSs5Dh8fWjNKHX23gEYsFPUt9dfh93djy1pZvYSIHwGrfeTJp3fBNb yU74Anc6vOdND8zd8cMxmHvJIzNjeDErUBsIWZsuFkDMnWfHaKlOdpv/3 XceZ0uddTH6wIGO8IjG97yecnUE33zk2wMFGHnDJM9m0vtcqlheRx34FT NUTZNoWAGxDb8UXI5+V76SchEmb1TzCRWjyfOxWMUtpBT9UZ/fjLFyf92 FcreEjV/3zoQXO0pu5w7Pt2ZZGz61fS3fWMXa43WpNJajACeUqfkfoe1f TAl0dnRILOkgS038ZMWgOMR6/LZvk6CRdq90slVdc9se6cNqUnDyp0ZYQ A==; X-IronPort-AV: E=McAfee;i="6600,9927,11014"; a="5257660" X-IronPort-AV: E=Sophos;i="6.07,128,1708416000"; d="scan'208";a="5257660" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Mar 2024 09:36:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,128,1708416000"; d="scan'208";a="35852964" Received: from lkp-server01.sh.intel.com (HELO b21307750695) ([10.239.97.150]) by fmviesa002.fm.intel.com with ESMTP; 15 Mar 2024 09:36:17 -0700 Received: from kbuild by b21307750695 with local (Exim 4.96) (envelope-from ) id 1rlAXW-000Ecq-0w; Fri, 15 Mar 2024 16:36:14 +0000 Date: Sat, 16 Mar 2024 00:36:05 +0800 From: kernel test robot To: Lukasz Luba , linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, lukasz.luba@arm.com, dietmar.eggemann@arm.com, linux-arm-kernel@lists.infradead.org, sboyd@kernel.org, nm@ti.com, linux-samsung-soc@vger.kernel.org, daniel.lezcano@linaro.org, rafael@kernel.org, viresh.kumar@linaro.org, krzysztof.kozlowski@linaro.org, alim.akhtar@samsung.com, m.szyprowski@samsung.com, mhiramat@kernel.org Subject: Re: [PATCH 3/4] PM: EM: Add em_dev_update_chip_binning() Message-ID: <202403160033.Kh6R75dh-lkp@intel.com> References: <20240314140421.3563571-4-lukasz.luba@arm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240314140421.3563571-4-lukasz.luba@arm.com> Hi Lukasz, kernel test robot noticed the following build warnings: [auto build test WARNING on rafael-pm/linux-next] [also build test WARNING on linus/master next-20240315] [cannot apply to krzk/for-next clk/clk-next soc/for-next rafael-pm/acpi-bus rafael-pm/devprop v6.8] [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/Lukasz-Luba/OPP-OF-Export-dev_opp_pm_calc_power-for-usage-from-EM/20240314-220719 base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next patch link: https://lore.kernel.org/r/20240314140421.3563571-4-lukasz.luba%40arm.com patch subject: [PATCH 3/4] PM: EM: Add em_dev_update_chip_binning() config: i386-randconfig-141-20240315 (https://download.01.org/0day-ci/archive/20240316/202403160033.Kh6R75dh-lkp@intel.com/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240316/202403160033.Kh6R75dh-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202403160033.Kh6R75dh-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/power/energy_model.c:824:52: warning: variable 'ret' is uninitialized when used here [-Wuninitialized] 824 | dev_warn(dev, "Couldn't find Energy Model %d\n", ret); | ^~~ include/linux/dev_printk.h:146:70: note: expanded from macro 'dev_warn' 146 | dev_printk_index_wrap(_dev_warn, KERN_WARNING, dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~ include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap' 110 | _p_func(dev, fmt, ##__VA_ARGS__); \ | ^~~~~~~~~~~ kernel/power/energy_model.c:817:12: note: initialize the variable 'ret' to silence this warning 817 | int i, ret; | ^ | = 0 1 warning generated. vim +/ret +824 kernel/power/energy_model.c 800 801 /** 802 * em_dev_update_chip_binning() - Update Energy Model with new values after 803 * the new voltage information is present in the OPPs. 804 * @dev : Device for which the Energy Model has to be updated. 805 * 806 * This function allows to update easily the EM with new values available in 807 * the OPP framework and DT. It can be used after the chip has been properly 808 * verified by device drivers and the voltages adjusted for the 'chip binning'. 809 * It uses the "dynamic-power-coefficient" DT property to calculate the power 810 * values for EM. For power calculation it uses the new adjusted voltage 811 * values known for OPPs, which might be changed after boot. 812 */ 813 int em_dev_update_chip_binning(struct device *dev) 814 { 815 struct em_perf_table __rcu *em_table; 816 struct em_perf_domain *pd; 817 int i, ret; 818 819 if (IS_ERR_OR_NULL(dev)) 820 return -EINVAL; 821 822 pd = em_pd_get(dev); 823 if (!pd) { > 824 dev_warn(dev, "Couldn't find Energy Model %d\n", ret); -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki