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d="scan'208";a="345247937" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Mar 2022 17:19:44 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,214,1643702400"; d="scan'208";a="584816887" Received: from lkp-server02.sh.intel.com (HELO 89b41b6ae01c) ([10.239.97.151]) by orsmga001.jf.intel.com with ESMTP; 26 Mar 2022 17:19:41 -0700 Received: from kbuild by 89b41b6ae01c with local (Exim 4.92) (envelope-from ) id 1nYGdB-0000YJ-A1; Sun, 27 Mar 2022 00:19:41 +0000 Date: Sun, 27 Mar 2022 08:18:57 +0800 From: kernel test robot To: Pantelis Antoniou Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-arm-kernel@lists.infradead.org, Michal Simek , Nava kishore Manne , Radhey Shyam Pandey Subject: [xilinx-xlnx:xlnx_rebase_v5.15_LTS 79/1029] drivers/of/configfs.c:134:9: warning: no previous prototype for function 'cfs_overlay_item_dtbo_read' Message-ID: <202203270826.aWqJcdaC-lkp@intel.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 User-Agent: Mutt/1.10.1 (2018-07-13) Hi Pantelis, FYI, the error/warning still remains. tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.15_LTS head: 1870e0fa79a9d58c6748c34550f3ccea0b515933 commit: 92450eff19894419e326623c7b720e83aeb57b96 [79/1029] OF: DT-Overlay configfs interface (v8) config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20220327/202203270826.aWqJcdaC-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0f6d9501cf49ce02937099350d08f20c4af86f3d) 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/Xilinx/linux-xlnx/commit/92450eff19894419e326623c7b720e83aeb57b96 git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xilinx-xlnx xlnx_rebase_v5.15_LTS git checkout 92450eff19894419e326623c7b720e83aeb57b96 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/of/configfs.c:134:9: warning: no previous prototype for function 'cfs_overlay_item_dtbo_read' [-Wmissing-prototypes] ssize_t cfs_overlay_item_dtbo_read(struct config_item *item, ^ drivers/of/configfs.c:134:1: note: declare 'static' if the function is not intended to be used outside of this translation unit ssize_t cfs_overlay_item_dtbo_read(struct config_item *item, ^ static >> drivers/of/configfs.c:156:9: warning: no previous prototype for function 'cfs_overlay_item_dtbo_write' [-Wmissing-prototypes] ssize_t cfs_overlay_item_dtbo_write(struct config_item *item, ^ drivers/of/configfs.c:156:1: note: declare 'static' if the function is not intended to be used outside of this translation unit ssize_t cfs_overlay_item_dtbo_write(struct config_item *item, ^ static 2 warnings generated. vim +/cfs_overlay_item_dtbo_read +134 drivers/of/configfs.c 133 > 134 ssize_t cfs_overlay_item_dtbo_read(struct config_item *item, 135 void *buf, size_t max_count) 136 { 137 struct cfs_overlay_item *overlay = to_cfs_overlay_item(item); 138 139 pr_debug("%s: buf=%p max_count=%zu\n", __func__, buf, max_count); 140 141 if (!overlay->dtbo) 142 return 0; 143 144 /* copy if buffer provided */ 145 if (buf) { 146 /* the buffer must be large enough */ 147 if (overlay->dtbo_size > max_count) 148 return -ENOSPC; 149 150 memcpy(buf, overlay->dtbo, overlay->dtbo_size); 151 } 152 153 return overlay->dtbo_size; 154 } 155 > 156 ssize_t cfs_overlay_item_dtbo_write(struct config_item *item, 157 const void *buf, size_t count) 158 { 159 struct cfs_overlay_item *overlay = to_cfs_overlay_item(item); 160 int err; 161 162 /* if it's set do not allow changes */ 163 if (overlay->path[0] != '\0' || overlay->dtbo_size > 0) 164 return -EPERM; 165 166 /* copy the contents */ 167 overlay->dtbo = kmemdup(buf, count, GFP_KERNEL); 168 if (!overlay->dtbo) 169 return -ENOMEM; 170 171 overlay->dtbo_size = count; 172 173 err = create_overlay(overlay, overlay->dtbo); 174 if (err < 0) 175 goto out_err; 176 177 return count; 178 179 out_err: 180 kfree(overlay->dtbo); 181 overlay->dtbo = NULL; 182 overlay->dtbo_size = 0; 183 184 return err; 185 } 186 -- 0-DAY CI Kernel Test Service https://01.org/lkp