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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B9263C433EF for ; Fri, 19 Nov 2021 08:33:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 93DC361264 for ; Fri, 19 Nov 2021 08:33:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234458AbhKSIgt (ORCPT ); Fri, 19 Nov 2021 03:36:49 -0500 Received: from mga05.intel.com ([192.55.52.43]:28474 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229511AbhKSIgq (ORCPT ); Fri, 19 Nov 2021 03:36:46 -0500 X-IronPort-AV: E=McAfee;i="6200,9189,10172"; a="320595571" X-IronPort-AV: E=Sophos;i="5.87,246,1631602800"; d="scan'208";a="320595571" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Nov 2021 00:33:45 -0800 X-IronPort-AV: E=Sophos;i="5.87,246,1631602800"; d="scan'208";a="455696549" Received: from smile.fi.intel.com ([10.237.72.184]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Nov 2021 00:33:43 -0800 Received: from andy by smile.fi.intel.com with local (Exim 4.95) (envelope-from ) id 1mnzKy-008TWF-RR; Fri, 19 Nov 2021 10:33:36 +0200 Date: Fri, 19 Nov 2021 10:33:36 +0200 From: Andy Shevchenko To: kernel test robot , Nathan Chancellor , Nick Desaulniers Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Linus Walleij Subject: Re: [pinctrl-intel:review-andy 18/19] drivers/pinctrl/pinctrl-zynqmp.c:825:13: warning: variable 'pin' is uninitialized when used here Message-ID: References: <202111191618.SSj1gGvK-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202111191618.SSj1gGvK-lkp@intel.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 19, 2021 at 04:08:32PM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel.git review-andy > head: c25441ca551164c56b34885df3d657e2ea4d623f > commit: 9122cda6a325f80564f02b7899cc063009f5e1f9 [18/19] pinctrl: zynqmp: Unify pin naming > config: arm64-buildonly-randconfig-r004-20211118 (attached as .config) > 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/pinctrl/intel.git/commit/?id=9122cda6a325f80564f02b7899cc063009f5e1f9 > git remote add pinctrl-intel https://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel.git > git fetch --no-tags pinctrl-intel review-andy > git checkout 9122cda6a325f80564f02b7899cc063009f5e1f9 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm64 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot > > All warnings (new ones prefixed by >>): > > >> drivers/pinctrl/pinctrl-zynqmp.c:825:13: warning: variable 'pin' is uninitialized when used here [-Wuninitialized] > if (IS_ERR(pin->name)) > ^~~ > drivers/pinctrl/pinctrl-zynqmp.c:811:37: note: initialize the variable 'pin' to silence this warning > struct pinctrl_pin_desc *pins, *pin; > ^ > = NULL > 1 warning generated. Utterly inappropriate suggestion by the compiler (it found an actual error, though). Can be Clang fixed, really? -- With Best Regards, Andy Shevchenko