Re: [net-next PATCH v4 10/11] net: pcs: airoha: add PCS driver for Airoha SoC

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

Hi Christian,

kernel test robot noticed the following build errors:

[auto build test ERROR on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Christian-Marangi/net-phy-introduce-phy_interface_copy-helper/20250512-041835
base:   net-next/main
patch link:    https://lore.kernel.org/r/20250511201250.3789083-11-ansuelsmth%40gmail.com
patch subject: [net-next PATCH v4 10/11] net: pcs: airoha: add PCS driver for Airoha SoC
config: x86_64-randconfig-001-20250512 (https://download.01.org/0day-ci/archive/20250513/202505131153.guojEpVn-lkp@intel.com/config)
compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250513/202505131153.guojEpVn-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/202505131153.guojEpVn-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: phylink_mii_c22_pcs_decode_state
   >>> referenced by pcs-airoha.c:2314 (drivers/net/pcs/pcs-airoha.c:2314)
   >>>               vmlinux.o:(airoha_pcs_get_state)
--
>> ld.lld: error: undefined symbol: phylink_decode_usxgmii_word
   >>> referenced by pcs-airoha.c:2333 (drivers/net/pcs/pcs-airoha.c:2333)
   >>>               vmlinux.o:(airoha_pcs_get_state)
--
>> ld.lld: error: undefined symbol: phylink_mii_c22_pcs_encode_advertisement
   >>> referenced by pcs-airoha.c:2485 (drivers/net/pcs/pcs-airoha.c:2485)
   >>>               vmlinux.o:(airoha_pcs_config)
--
>> ld.lld: error: undefined symbol: phylink_release_pcs
   >>> referenced by pcs-airoha.c:2890 (drivers/net/pcs/pcs-airoha.c:2890)
   >>>               vmlinux.o:(airoha_pcs_remove)

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