csky-linux-ld: rtl8366rb.c:undefined reference to `devm_led_classdev_register_ext'

csky-linux-ld: rtl8366rb.c:undefined reference to `devm_led_classdev_register_ext'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a3e18a540541325a8c8848171f71e0d45ad30b2c
commit: 32d617005475a71ebcc4ec8b2791e8d1481e9a10 net: dsa: realtek: add LED drivers for rtl8366rb
date:   7 weeks ago
config: csky-randconfig-s031-20230329 (https://download.01.org/0day-ci/archive/20240616/202406161120.M2A3cA6J-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240616/202406161120.M2A3cA6J-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/202406161120.M2A3cA6J-lkp@intel.com/

All errors (new ones prefixed by >>):

   csky-linux-ld: drivers/net/dsa/realtek/rtl8366rb.o: in function `rtl8366rb_setup_led':
   rtl8366rb.c:(.text+0xff8): undefined reference to `led_init_default_state_get'
>> csky-linux-ld: rtl8366rb.c:(.text+0x10ce): undefined reference to `devm_led_classdev_register_ext'
>> csky-linux-ld: rtl8366rb.c:(.text+0x10f4): undefined reference to `led_init_default_state_get'
   csky-linux-ld: rtl8366rb.c:(.text+0x110c): undefined reference to `devm_led_classdev_register_ext'

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