Hi Ville, First bad commit (maybe != root cause): tree: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next head: 85cb9d603953d77de5cb311d229a79c439ff6bfb commit: 6597efcfc53585d5fb177b901a41b4ac2f282b99 [10/10] drm/stm: Allow build with COMPILE_TEST=y config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20240519/202405190539.epnOVnMx-lkp@xxxxxxxxx/config) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240519/202405190539.epnOVnMx-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/202405190539.epnOVnMx-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/gpu/drm/stm/ltdc.c:494:35: error: unused function 'encoder_to_ltdc' [-Werror,-Wunused-function] 494 | static inline struct ltdc_device *encoder_to_ltdc(struct drm_encoder *enc) | ^~~~~~~~~~~~~~~ 1 error generated. vim +/encoder_to_ltdc +494 drivers/gpu/drm/stm/ltdc.c b759012c5fa761 Yannick Fertre 2017-04-14 493 b759012c5fa761 Yannick Fertre 2017-04-14 @494 static inline struct ltdc_device *encoder_to_ltdc(struct drm_encoder *enc) b759012c5fa761 Yannick Fertre 2017-04-14 495 { b759012c5fa761 Yannick Fertre 2017-04-14 496 return (struct ltdc_device *)enc->dev->dev_private; b759012c5fa761 Yannick Fertre 2017-04-14 497 } b759012c5fa761 Yannick Fertre 2017-04-14 498 :::::: The code at line 494 was first introduced by commit :::::: b759012c5fa761ee08998c80fc4ad6343c258487 drm/stm: Add STM32 LTDC driver :::::: TO: Yannick Fertre <yannick.fertre@xxxxxx> :::::: CC: Eric Anholt <eric@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
