Re: [PATCH 09/10] drm/bochs: Validate display modes against available video memory

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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




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