[PATCH v2 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 lee-leds/for-leds-next linus/master lee-backlight/for-backlight-fixes v6.14-rc4 next-20250227]
[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/20250226-174013
base:   https://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight.git for-backlight-next
patch link:    https://lore.kernel.org/r/20250226093456.147402-7-tzimmermann%40suse.de
patch subject: [PATCH v2 06/11] backlight: Replace fb events with a dedicated function call
config: arm-randconfig-002-20250227 (https://download.01.org/0day-ci/archive/20250227/202502272049.iWEcMOrk-lkp@intel.com/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/20250227/202502272049.iWEcMOrk-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/202502272049.iWEcMOrk-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   In file included from arch/arm/mach-omap2/fb.c:16:
   In file included from include/linux/omapfb.h:13:
   In file included from include/uapi/linux/omapfb.h:28:
>> include/linux/fb.h:767:6: warning: no previous prototype for function 'fb_bl_notify_blank' [-Wmissing-prototypes]
     767 | void fb_bl_notify_blank(struct fb_info *info, int old_blank)
         |      ^
   include/linux/fb.h:767:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
     767 | void fb_bl_notify_blank(struct fb_info *info, int old_blank)
         | ^
         | static 
   1 warning generated.
--
>> ld.lld: error: duplicate symbol: fb_bl_notify_blank
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank)
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-vdi.o:(.text+0x0)
--
>> ld.lld: error: duplicate symbol: fb_bl_notify_blank
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank)
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-smfc.o:(.text+0x0)
--
>> ld.lld: error: duplicate symbol: fb_bl_notify_blank
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank)
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-cpmem.o:(.text+0x0)
--
>> ld.lld: error: duplicate symbol: fb_bl_notify_blank
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank)
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-image-convert.o:(.text+0x0)
--
>> ld.lld: error: duplicate symbol: fb_bl_notify_blank
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank)
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-ic-csc.o:(.text+0x0)
--
>> ld.lld: error: duplicate symbol: fb_bl_notify_blank
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank)
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-ic.o:(.text+0x0)
--
>> ld.lld: error: duplicate symbol: fb_bl_notify_blank
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank)
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-dmfc.o:(.text+0x0)
--
>> ld.lld: error: duplicate symbol: fb_bl_notify_blank
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank)
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-dp.o:(.text+0x0)
--
>> ld.lld: error: duplicate symbol: fb_bl_notify_blank
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank)
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-di.o:(.text+0x0)
--
>> ld.lld: error: duplicate symbol: fb_bl_notify_blank
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank)
   >>> defined at fb.h:768 (include/linux/fb.h:768)
   >>>            drivers/gpu/ipu-v3/ipu-dc.o:(.text+0x0)
..

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