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Thu, 04 May 2023 13:02:00 +0000 Date: Thu, 4 May 2023 21:01:35 +0800 From: kernel test robot To: "Nancy.Lin" Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Chun-Kuang Hu , AngeloGioacchino Del Regno Subject: drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c:415:10: warning: cast to smaller integer type 'enum mtk_ovl_adaptor_comp_type' from 'const void *' Message-ID: <202305042054.ZtWME9OU-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Nancy.Lin, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1a5304fecee523060f26e2778d9d8e33c0562df3 commit: 453c3364632a1f305db7d425dc9f8d6711cd3491 drm/mediatek: Add ovl_adaptor support for MT8195 date: 6 weeks ago config: arm64-randconfig-r004-20230504 (https://download.01.org/0day-ci/archive/20230504/202305042054.ZtWME9OU-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project b1465cd49efcbc114a75220b153f5a055ce7911f) 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/torvalds/linux.git/commit/?id=453c3364632a1f305db7d425dc9f8d6711cd3491 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 453c3364632a1f305db7d425dc9f8d6711cd3491 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/gpu/drm/mediatek/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Link: https://lore.kernel.org/oe-kbuild-all/202305042054.ZtWME9OU-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c:415:10: warning: cast to smaller integer type 'enum mtk_ovl_adaptor_comp_type' from 'const void *' [-Wvoid-pointer-to-enum-cast] type = (enum mtk_ovl_adaptor_comp_type)of_id->data; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. vim +415 drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c 391 392 static int ovl_adaptor_comp_init(struct device *dev, struct component_match **match) 393 { 394 struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev); 395 struct device_node *node, *parent; 396 struct platform_device *comp_pdev; 397 398 parent = dev->parent->parent->of_node->parent; 399 400 for_each_child_of_node(parent, node) { 401 const struct of_device_id *of_id; 402 enum mtk_ovl_adaptor_comp_type type; 403 int id; 404 405 of_id = of_match_node(mtk_ovl_adaptor_comp_dt_ids, node); 406 if (!of_id) 407 continue; 408 409 if (!of_device_is_available(node)) { 410 dev_dbg(dev, "Skipping disabled component %pOF\n", 411 node); 412 continue; 413 } 414 > 415 type = (enum mtk_ovl_adaptor_comp_type)of_id->data; 416 id = ovl_adaptor_comp_get_id(dev, node, type); 417 if (id < 0) { 418 dev_warn(dev, "Skipping unknown component %pOF\n", 419 node); 420 continue; 421 } 422 423 comp_pdev = of_find_device_by_node(node); 424 if (!comp_pdev) 425 return -EPROBE_DEFER; 426 427 priv->ovl_adaptor_comp[id] = &comp_pdev->dev; 428 429 drm_of_component_match_add(dev, match, compare_of, node); 430 dev_dbg(dev, "Adding component match for %pOF\n", node); 431 } 432 433 if (!*match) { 434 dev_err(dev, "No match device for ovl_adaptor\n"); 435 return -ENODEV; 436 } 437 438 return 0; 439 } 440 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests