Re: [net-next PATCH 5/6] 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-phylink-reset-PCS-Phylink-double-reference-on-phylink_stop/20250319-080303
base:   net-next/main
patch link:    https://lore.kernel.org/r/20250318235850.6411-6-ansuelsmth%40gmail.com
patch subject: [net-next PATCH 5/6] net: pcs: airoha: add PCS driver for Airoha SoC
config: i386-randconfig-007-20250321 (https://download.01.org/0day-ci/archive/20250321/202503211416.eZCW1LF6-lkp@intel.com/config)
compiler: clang version 20.1.1 (https://github.com/llvm/llvm-project 424c2d9b7e4de40d0804dd374721e6411c27d1d1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250321/202503211416.eZCW1LF6-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/202503211416.eZCW1LF6-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: of_pcs_simple_get
   >>> referenced by pcs-airoha.c:2818 (drivers/net/pcs/pcs-airoha.c:2818)
   >>>               drivers/net/pcs/pcs-airoha.o:(airoha_pcs_probe) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: of_pcs_add_provider
   >>> referenced by pcs-airoha.c:2818 (drivers/net/pcs/pcs-airoha.c:2818)
   >>>               drivers/net/pcs/pcs-airoha.o:(airoha_pcs_probe) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: of_pcs_del_provider
   >>> referenced by pcs-airoha.c:2828 (drivers/net/pcs/pcs-airoha.c:2828)
   >>>               drivers/net/pcs/pcs-airoha.o:(airoha_pcs_remove) in archive vmlinux.a

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