Hi Jack, I love your patch! Perhaps something to improve: [auto build test WARNING on media-tree/master] [also build test WARNING on robh/for-next linus/master v6.3-rc4 next-20230331] [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/Jack-Zhu/media-dt-bindings-Add-bindings-for-JH7110-Camera-Subsystem/20230331-202001 base: git://linuxtv.org/media_tree.git master patch link: https://lore.kernel.org/r/20230331121826.96973-10-jack.zhu%40starfivetech.com patch subject: [PATCH v3 9/9] media: starfive: Add Starfive Camera Subsystem driver config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20230331/202303312218.LXqt9wcT-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 12.1.0 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 # https://github.com/intel-lab-lkp/linux/commit/421adbf9815b633e8bac5da7146c33aac01e283c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Jack-Zhu/media-dt-bindings-Add-bindings-for-JH7110-Camera-Subsystem/20230331-202001 git checkout 421adbf9815b633e8bac5da7146c33aac01e283c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc SHELL=/bin/bash drivers/media/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303312218.LXqt9wcT-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/media/platform/starfive/stf_camss.c:41:5: warning: no previous prototype for 'stfcamss_get_mem_res' [-Wmissing-prototypes] 41 | int stfcamss_get_mem_res(struct platform_device *pdev, | ^~~~~~~~~~~~~~~~~~~~ -- >> drivers/media/platform/starfive/stf_isp.c:627:5: warning: no previous prototype for 'isp_close' [-Wmissing-prototypes] 627 | int isp_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) | ^~~~~~~~~ -- drivers/media/platform/starfive/stf_vin.c: In function 'stf_vin_map_isp_pad': >> drivers/media/platform/starfive/stf_vin.c:99:24: warning: implicit conversion from 'enum isp_line_id' to 'enum isp_pad_id' [-Wenum-conversion] 99 | pad_id = vin_map_isp_line(line); | ^ drivers/media/platform/starfive/stf_vin.c: In function 'vin_output_init_addrs': >> drivers/media/platform/starfive/stf_vin.c:683:20: warning: variable 'pong_addr' set but not used [-Wunused-but-set-variable] 683 | dma_addr_t pong_addr; | ^~~~~~~~~ drivers/media/platform/starfive/stf_vin.c: At top level: drivers/media/platform/starfive/stf_vin.c:33:32: warning: 'vin_formats_raw' defined but not used [-Wunused-const-variable=] 33 | static const struct vin_format vin_formats_raw[] = { | ^~~~~~~~~~~~~~~ vim +/stfcamss_get_mem_res +41 drivers/media/platform/starfive/stf_camss.c 40 > 41 int stfcamss_get_mem_res(struct platform_device *pdev, 42 struct stfcamss *stfcamss) 43 { 44 stfcamss->syscon_base = 45 devm_platform_ioremap_resource_byname(pdev, "syscon"); 46 if (IS_ERR(stfcamss->syscon_base)) 47 return PTR_ERR(stfcamss->syscon_base); 48 49 stfcamss->isp_base = 50 devm_platform_ioremap_resource_byname(pdev, "isp"); 51 if (IS_ERR(stfcamss->isp_base)) 52 return PTR_ERR(stfcamss->isp_base); 53 54 return 0; 55 } 56 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests