[PATCH v3 06/11] backlight: Replace fb events with a dedicated function call

[kernel test robot]

Hi Thomas,

kernel test robot noticed the following build errors:

[auto build test ERROR on lee-backlight/for-backlight-next]
[also build test ERROR on linus/master v6.14-rc5 next-20250307]
[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/fbdev-Rework-fb_blank/20250306-221554
base:   https://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight.git for-backlight-next
patch link:    https://lore.kernel.org/r/20250306140947.580324-7-tzimmermann%40suse.de
patch subject: [PATCH v3 06/11] backlight: Replace fb events with a dedicated function call
config: x86_64-randconfig-005-20250308 (https://download.01.org/0day-ci/archive/20250308/202503081939.UtJzrbfX-lkp@intel.com/config)
compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250308/202503081939.UtJzrbfX-lkp@intel.com/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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202503081939.UtJzrbfX-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: backlight_notify_blank
   >>> referenced by fb_backlight.c:47 (drivers/video/fbdev/core/fb_backlight.c:47)
   >>>               drivers/video/fbdev/core/fb_backlight.o:(fb_bl_notify_blank) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: backlight_notify_blank_all
   >>> referenced by fb_backlight.c:49 (drivers/video/fbdev/core/fb_backlight.c:49)
   >>>               drivers/video/fbdev/core/fb_backlight.o:(fb_bl_notify_blank) in archive vmlinux.a

-- 
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