Hi Jocelyn, kernel test robot noticed the following build warnings: [auto build test WARNING on 8befe8fa5a4e4b30787b17e078d9d7b5cb92ea19] url: https://github.com/intel-lab-lkp/linux/commits/Jocelyn-Falempe/drm-panic-Squash-of-pending-series/20240816-205859 base: 8befe8fa5a4e4b30787b17e078d9d7b5cb92ea19 patch link: https://lore.kernel.org/r/20240816125612.1003295-4-jfalempe%40redhat.com patch subject: [PATCH v2 3/5] drm/log: Introduce a new boot logger to draw the kmsg on the screen config: arm-randconfig-r121-20240818 (https://download.01.org/0day-ci/archive/20240818/202408181614.AAr0qM24-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20240818/202408181614.AAr0qM24-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202408181614.AAr0qM24-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/drm_log.c:66:17: sparse: sparse: symbol 'drm_log_buf' was not declared. Should it be static? >> drivers/gpu/drm/drm_log.c:384:1: sparse: sparse: symbol 'drm_log_work' was not declared. Should it be static? drivers/gpu/drm/drm_log.c: note: in included file (through include/linux/rculist.h, include/linux/console.h): include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true vim +/drm_log_buf +66 drivers/gpu/drm/drm_log.c 59 60 /* 61 * A circular buffer, with the last kmsg logs to print. 62 * 8K is more than what can be drawn on most monitors. 63 */ 64 #define CIRC_BUF_SIZE (1 << 13) 65 #define CIRC_BUF_MASK (CIRC_BUF_SIZE - 1) > 66 struct circ_buf drm_log_buf; 67 static DEFINE_SPINLOCK(drm_log_writer_lock); 68 static DEFINE_SPINLOCK(drm_log_reader_lock); 69 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki