Hi Jocelyn, kernel test robot noticed the following build warnings: [auto build test WARNING on 2dde18cd1d8fac735875f2e4987f11817cc0bc2c] url: https://github.com/intel-lab-lkp/linux/commits/Jocelyn-Falempe/drm-format-helper-Export-drm_fb_xrgb8888_to_rgb565_line/20230928-013030 base: 2dde18cd1d8fac735875f2e4987f11817cc0bc2c patch link: https://lore.kernel.org/r/20230927172849.193996-3-jfalempe%40redhat.com patch subject: [PATCH v3 2/3] drm/panic: Add a drm panic handler config: arc-randconfig-002-20230929 (https://download.01.org/0day-ci/archive/20230929/202309291753.8XAivqN0-lkp@xxxxxxxxx/config) compiler: arc-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230929/202309291753.8XAivqN0-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/202309291753.8XAivqN0-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/drm_panic.c:363: warning: expecting prototype for drm_log_exit(). Prototype was for drm_panic_exit() instead vim +363 drivers/gpu/drm/drm_panic.c 358 359 /** 360 * drm_log_exit() - Shutdown drm-panic subsystem 361 */ 362 void drm_panic_exit(void) > 363 { -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki