Re: [PATCH net-next 1/1] net: mdio: reset PHY before attempting to access ID register

From: kernel test robot

Date: Wed Nov 26 2025 - 10:18:06 EST


Hi Buday,

kernel test robot noticed the following build errors:

[auto build test ERROR on e2c20036a8879476c88002730d8a27f4e3c32d4b]

url: https://github.com/intel-lab-lkp/linux/commits/Buday-Csaba/net-mdio-reset-PHY-before-attempting-to-access-ID-register/20251125-191906
base: e2c20036a8879476c88002730d8a27f4e3c32d4b
patch link: https://lore.kernel.org/r/6cb97b7bfd92d8dc1c1c00662114ece03b6d2913.1764069248.git.buday.csaba%40prolan.hu
patch subject: [PATCH net-next 1/1] net: mdio: reset PHY before attempting to access ID register
config: arm-randconfig-003-20251126 (https://download.01.org/0day-ci/archive/20251126/202511262214.pygdUoQY-lkp@xxxxxxxxx/config)
compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251126/202511262214.pygdUoQY-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202511262214.pygdUoQY-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "mdio_device_register_reset" [drivers/net/mdio/fwnode_mdio.ko] undefined!
>> ERROR: modpost: "mdio_device_unregister_reset" [drivers/net/mdio/fwnode_mdio.ko] undefined!

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki