Hi Yunke, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on media-tree/master] [also build test WARNING on linus/master v6.1-rc2 next-20221025] [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/Yunke-Cao/media-Implement-UVC-v1-5-ROI/20221025-135821 base: git://linuxtv.org/media_tree.git master patch link: https://lore.kernel.org/r/20221025055528.1117251-3-yunkec%40google.com patch subject: [PATCH v9 02/11] media: uvcvideo: add uvc_ctrl_get_boundary for getting default value config: i386-randconfig-s003 (attached as .config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/3a37413c0b49718560da555fa58b7278de10202d git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Yunke-Cao/media-Implement-UVC-v1-5-ROI/20221025-135821 git checkout 3a37413c0b49718560da555fa58b7278de10202d # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/media/usb/uvc/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/media/usb/uvc/uvc_ctrl.c:1752:5: sparse: sparse: symbol '__uvc_ctrl_get_boundary_std' was not declared. Should it be static? -- 0-DAY CI Kernel Test Service https://01.org/lkp
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