Hi Philipp, I love your patch! Perhaps something to improve: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-tip/drm-tip linus/master v5.9-rc2 next-20200826] [cannot apply to tegra-drm/drm/tegra/for-next drm-exynos/exynos-drm-next drm/drm-next] [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] url: https://github.com/0day-ci/linux/commits/Philipp-Zabel/drm-add-drmm_encoder_alloc/20200826-203629 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: x86_64-randconfig-a003-20200826 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 7cfcecece0e0430937cf529ce74d3a071a4dedc6) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/gpu/drm/drm_crtc.c:336:1: warning: all paths through this function will call itself [-Winfinite-recursion] { ^ 1 warning generated. # https://github.com/0day-ci/linux/commit/236b7bc44ae0fdecc8e80c5aba0655ca14fdfb23 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Philipp-Zabel/drm-add-drmm_encoder_alloc/20200826-203629 git checkout 236b7bc44ae0fdecc8e80c5aba0655ca14fdfb23 vim +336 drivers/gpu/drm/drm_crtc.c 311 312 /** 313 * drm_crtc_init_with_planes - Initialise a new CRTC object with 314 * specified primary and cursor planes. 315 * @dev: DRM device 316 * @crtc: CRTC object to init 317 * @primary: Primary plane for CRTC 318 * @cursor: Cursor plane for CRTC 319 * @funcs: callbacks for the new CRTC 320 * @name: printf style format string for the CRTC name, or NULL for default name 321 * 322 * Inits a new object created as base part of a driver crtc object. Drivers 323 * should use this function instead of drm_crtc_init(), which is only provided 324 * for backwards compatibility with drivers which do not yet support universal 325 * planes). For really simple hardware which has only 1 plane look at 326 * drm_simple_display_pipe_init() instead. 327 * 328 * Returns: 329 * Zero on success, error code on failure. 330 */ 331 int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, 332 struct drm_plane *primary, 333 struct drm_plane *cursor, 334 const struct drm_crtc_funcs *funcs, 335 const char *name, ...) > 336 { 337 va_list ap; 338 int ret; 339 340 if (name) 341 va_start(ap, name); 342 ret = drm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs, 343 name, ap); 344 if (name) 345 va_end(ap); 346 347 return ret; 348 } 349 EXPORT_SYMBOL(drm_crtc_init_with_planes); 350 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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