Hi Ville, kernel test robot noticed the following build errors: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.8-rc2 next-20240202] [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/Ville-Syrjala/drm-i915-Use-struct-resource-for-memory-region-IO-as-well/20240125-222947 base: git://anongit.freedesktop.org/drm-intel for-linux-next patch link: https://lore.kernel.org/r/20240116075636.6121-13-ville.syrjala%40linux.intel.com patch subject: [PATCH v3 12/16] drm/i915: Simplify intel_initial_plane_config() calling convention config: x86_64-randconfig-076-20240202 (https://download.01.org/0day-ci/archive/20240203/202402030704.nGzOFDCt-lkp@xxxxxxxxx/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240203/202402030704.nGzOFDCt-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/202402030704.nGzOFDCt-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/gpu/drm/xe/display/xe_plane_initial.c:270:6: error: no previous prototype for function 'intel_crtc_initial_plane_config' [-Werror,-Wmissing-prototypes] 270 | void intel_crtc_initial_plane_config(struct intel_crtc *crtc) | ^ drivers/gpu/drm/xe/display/xe_plane_initial.c:270:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 270 | void intel_crtc_initial_plane_config(struct intel_crtc *crtc) | ^ | static 1 error generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for DRM_I915_DEBUG_GEM Depends on [n]: HAS_IOMEM [=y] && DRM_I915 [=m] && EXPERT [=y] && DRM_I915_WERROR [=n] Selected by [m]: - DRM_I915_DEBUG [=y] && HAS_IOMEM [=y] && DRM_I915 [=m] && EXPERT [=y] && !COMPILE_TEST [=n] vim +/intel_crtc_initial_plane_config +270 drivers/gpu/drm/xe/display/xe_plane_initial.c 44e694958b9539 Maarten Lankhorst 2023-08-17 269 44e694958b9539 Maarten Lankhorst 2023-08-17 @270 void intel_crtc_initial_plane_config(struct intel_crtc *crtc) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki