Hi Thomas, I love your patch! Yet something to improve: [auto build test ERROR on drm-misc/drm-misc-next] [cannot apply to deller-parisc/for-next staging/staging-testing staging/staging-next staging/staging-linus linus/master v6.3-rc1 next-20230306] [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/Thomas-Zimmermann/lib-Add-option-iterator/20230307-000524 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20230306160016.4459-98-tzimmermann%40suse.de patch subject: [PATCH 97/99] fbdev/vt8623fb: Duplicate video-mode option string config: x86_64-randconfig-a016-20230306 (https://download.01.org/0day-ci/archive/20230307/202303070859.8Y5URjpT-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) 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/819a7fd9e1404efc4f2140bcb4c7e39643b7e4ab git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Thomas-Zimmermann/lib-Add-option-iterator/20230307-000524 git checkout 819a7fd9e1404efc4f2140bcb4c7e39643b7e4ab # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash 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/202303070859.8Y5URjpT-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/video/fbdev/vt8623fb.c:938:4: error: 'break' statement not in loop or switch statement break; ^ drivers/video/fbdev/vt8623fb.c:940:4: error: 'break' statement not in loop or switch statement break; ^ 2 errors generated. vim +/break +938 drivers/video/fbdev/vt8623fb.c 924 925 if (fb_modesetting_disabled("vt8623fb")) 926 return -ENODEV; 927 928 #ifndef MODULE 929 if (fb_get_options("vt8623fb", &option)) 930 return -ENODEV; 931 932 if (option && *option) { 933 static char mode_option_buf[256]; 934 int ret; 935 936 ret = snprintf(mode_option_buf, sizeof(mode_option_buf), "%s", option); 937 if (WARN(ret < 0, "vt8623fb: ignoring invalid option, ret=%d\n", ret)) > 938 break; 939 if (WARN(ret >= sizeof(mode_option_buf), "vt8623fb: option too long\n")) 940 break; 941 mode_option = mode_option_buf; 942 } 943 #endif 944 945 pr_debug("vt8623fb: initializing\n"); 946 return pci_register_driver(&vt8623fb_pci_driver); 947 } 948 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests