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 811D3C433EF for ; Sat, 26 Mar 2022 06:59:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231658AbiCZHAl (ORCPT ); Sat, 26 Mar 2022 03:00:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46426 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231340AbiCZHAi (ORCPT ); Sat, 26 Mar 2022 03:00:38 -0400 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 85BE8237D7 for ; Fri, 25 Mar 2022 23:59:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1648277942; x=1679813942; h=date:from:to:cc:subject:message-id:mime-version; bh=pv9J0nX7QXZsyvuogfLKn3Ox66ThIHnRddtjZO0oGmA=; b=mzxyEkbIJ+9P+HqXnWrd7OhS45NE4h2Ey5vnxmNPhPc24IgHrxaQHlhn Bx0R6+80TFlXqJM0qI6kkscgNfcdSP06vaj8/LhmXsnBCWHLjH2IuWPRM GoC8HZ0XA3ndz9bNWlbec+wk99QZf6kvA3My7K7yx2ut/XxS4cqAXWQW3 6JCp6cHBM96k/5UXPRAq162Z1OYOPKGdo50jezHZ09TME25EA9T5KPOsg lbcappyp8HtBY02ZV1NftYFEBvGJJkw9ZQ70xO1vVevjj1X3xqGUzfNIu +d9Fq0iJ5r4yecEJS0fzD919/qgXpkVy7GK3pza4/1VIqgJtJjACj8cjh w==; X-IronPort-AV: E=McAfee;i="6200,9189,10297"; a="321955842" X-IronPort-AV: E=Sophos;i="5.90,211,1643702400"; d="scan'208";a="321955842" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Mar 2022 23:59:01 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,211,1643702400"; d="scan'208";a="516766456" Received: from lkp-server02.sh.intel.com (HELO 89b41b6ae01c) ([10.239.97.151]) by orsmga002.jf.intel.com with ESMTP; 25 Mar 2022 23:59:00 -0700 Received: from kbuild by 89b41b6ae01c with local (Exim 4.92) (envelope-from ) id 1nY0O3-000N6G-CQ; Sat, 26 Mar 2022 06:58:59 +0000 Date: Sat, 26 Mar 2022 14:58:43 +0800 From: kernel test robot To: Christian =?iso-8859-1?Q?K=F6nig?= Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Daniel Vetter Subject: [drm-misc:for-linux-next 2/3] drivers/dma-buf/st-dma-fence-unwrap.c:125:13: warning: variable 'err' set but not used Message-ID: <202203261449.ZA8GwHFt-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: git://anongit.freedesktop.org/drm/drm-misc for-linux-next head: 519f490db07e1a539490612f376487f61e48e39c commit: 64a8f92fd783e750cdb81af75942dcd53bbf61bd [2/3] dma-buf: add dma_fence_unwrap v2 config: powerpc-randconfig-m031-20220326 (https://download.01.org/0day-ci/archive/20220326/202203261449.ZA8GwHFt-lkp@intel.com/config) compiler: powerpc-linux-gcc (GCC) 11.2.0 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 git remote add drm-misc git://anongit.freedesktop.org/drm/drm-misc git fetch --no-tags drm-misc for-linux-next git checkout 64a8f92fd783e750cdb81af75942dcd53bbf61bd # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/dma-buf/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): drivers/dma-buf/st-dma-fence-unwrap.c: In function 'unwrap_array': >> drivers/dma-buf/st-dma-fence-unwrap.c:125:13: warning: variable 'err' set but not used [-Wunused-but-set-variable] 125 | int err = 0; | ^~~ drivers/dma-buf/st-dma-fence-unwrap.c: In function 'unwrap_chain': drivers/dma-buf/st-dma-fence-unwrap.c:167:13: warning: variable 'err' set but not used [-Wunused-but-set-variable] 167 | int err = 0; | ^~~ drivers/dma-buf/st-dma-fence-unwrap.c: In function 'unwrap_chain_array': drivers/dma-buf/st-dma-fence-unwrap.c:209:13: warning: variable 'err' set but not used [-Wunused-but-set-variable] 209 | int err = 0; | ^~~ vim +/err +125 drivers/dma-buf/st-dma-fence-unwrap.c 120 121 static int unwrap_array(void *arg) 122 { 123 struct dma_fence *fence, *f1, *f2, *array; 124 struct dma_fence_unwrap iter; > 125 int err = 0; 126 127 f1 = mock_fence(); 128 if (!f1) 129 return -ENOMEM; 130 131 f2 = mock_fence(); 132 if (!f2) { 133 dma_fence_put(f1); 134 return -ENOMEM; 135 } 136 137 array = mock_array(2, f1, f2); 138 if (!array) 139 return -ENOMEM; 140 141 dma_fence_unwrap_for_each(fence, &iter, array) { 142 if (fence == f1) { 143 f1 = NULL; 144 } else if (fence == f2) { 145 f2 = NULL; 146 } else { 147 pr_err("Unexpected fence!\n"); 148 err = -EINVAL; 149 } 150 } 151 152 if (f1 || f2) { 153 pr_err("Not all fences seen!\n"); 154 err = -EINVAL; 155 } 156 157 dma_fence_signal(f1); 158 dma_fence_signal(f2); 159 dma_fence_put(array); 160 return 0; 161 } 162 -- 0-DAY CI Kernel Test Service https://01.org/lkp