Hi Thomas, kernel test robot noticed the following build errors: [auto build test ERROR on drm/drm-next] [also build test ERROR on drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-misc/drm-misc-next drm-tip/drm-tip linus/master v6.11-rc5 next-20240829] [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/Thomas-Zimmermann/drm-bochs-Remove-manual-format-test-from-fb_create/20240826-131701 base: git://anongit.freedesktop.org/drm/drm drm-next patch link: https://lore.kernel.org/r/20240823124422.286989-10-tzimmermann%40suse.de patch subject: [PATCH 09/10] drm/bochs: Validate display modes against available video memory config: i386-randconfig-006-20240829 (https://download.01.org/0day-ci/archive/20240830/202408300420.qcGOiIM6-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240830/202408300420.qcGOiIM6-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/202408300420.qcGOiIM6-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): ld: drivers/gpu/drm/tiny/bochs.o: in function `bochs_mode_config_mode_valid': >> drivers/gpu/drm/tiny/bochs.c:574: undefined reference to `__udivdi3' vim +574 drivers/gpu/drm/tiny/bochs.c 560 561 static enum drm_mode_status bochs_mode_config_mode_valid(struct drm_device *dev, 562 const struct drm_display_mode *mode) 563 { 564 struct bochs_device *bochs = to_bochs_device(dev); 565 const struct drm_format_info *format = drm_format_info(DRM_FORMAT_XRGB8888); 566 uint64_t pitch; 567 568 if (drm_WARN_ON(dev, !format)) 569 return MODE_ERROR; 570 571 pitch = drm_format_info_min_pitch(format, 0, mode->vdisplay); 572 if (!pitch) 573 return MODE_BAD_WIDTH; > 574 if (bochs->fb_size / pitch < mode->hdisplay) 575 return MODE_MEM; 576 577 return MODE_OK; 578 } 579 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki