Re: [PATCH] HID: generic: add LampArray support via hid-lamparray helper

[kernel test robot <lkp@intel.com>]

Hi Tim,

kernel test robot noticed the following build errors:

[auto build test ERROR on hid/for-next]
[also build test ERROR on linus/master v6.19 next-20260219]
[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/Tim-Guttzeit/HID-generic-add-LampArray-support-via-hid-lamparray-helper/20260219-211040
base:   https://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git for-next
patch link:    https://lore.kernel.org/r/20260219130217.2042972-1-tgu%40tuxedocomputers.com
patch subject: [PATCH] HID: generic: add LampArray support via hid-lamparray helper
config: csky-defconfig (https://download.01.org/0day-ci/archive/20260220/202602200241.6ypuWvE5-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260220/202602200241.6ypuWvE5-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602200241.6ypuWvE5-lkp@intel.com/

All errors (new ones prefixed by >>):

   csky-linux-ld: drivers/hid/hid-lamparray.o: in function `lamparray_led_brightness_set':
   hid-lamparray.c:(.text+0x550): undefined reference to `led_mc_calc_color_components'
>> csky-linux-ld: hid-lamparray.c:(.text+0x5c0): undefined reference to `led_mc_calc_color_components'
   csky-linux-ld: drivers/hid/hid-lamparray.o: in function `lamparray_register_led':
   hid-lamparray.c:(.text+0x6b2): undefined reference to `led_mc_calc_color_components'
>> csky-linux-ld: hid-lamparray.c:(.text+0x6ce): undefined reference to `led_classdev_multicolor_register_ext'
   csky-linux-ld: hid-lamparray.c:(.text+0x750): undefined reference to `led_mc_calc_color_components'
   csky-linux-ld: hid-lamparray.c:(.text+0x758): undefined reference to `led_classdev_multicolor_register_ext'
   csky-linux-ld: drivers/hid/hid-lamparray.o: in function `lamparray_register.part.0':
   hid-lamparray.c:(.text+0x94e): undefined reference to `led_classdev_multicolor_unregister'
   csky-linux-ld: drivers/hid/hid-lamparray.o: in function `lamparray_unregister':
   hid-lamparray.c:(.text+0xad4): undefined reference to `led_classdev_multicolor_unregister'
>> csky-linux-ld: hid-lamparray.c:(.text+0xb1c): undefined reference to `led_classdev_multicolor_unregister'
   csky-linux-ld: hid-lamparray.c:(.text+0xb24): undefined reference to `led_classdev_multicolor_unregister'
   csky-linux-ld: drivers/hid/hid-lamparray.o: in function `use_leds_uapi_store':
   hid-lamparray.c:(.text+0xc06): undefined reference to `led_classdev_multicolor_unregister'
   csky-linux-ld: drivers/hid/hid-lamparray.o:hid-lamparray.c:(.text+0xc5c): more undefined references to `led_classdev_multicolor_unregister' follow

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