[thierryreding:for-5.17/work 55/62] ERROR: modpost: "xpcs_write" [drivers/net/ethernet/stmicro/stmmac/dwmac-tegra.ko] undefined!

[kernel test robot]

tree:   https://github.com/thierryreding/linux for-5.17/work
head:   c46414dd6c93bea11a42283972954dbe06bc5af3
commit: 74fea814b7dcb0764061130164668105002478b0 [55/62] WIP MGBE
config: m68k-allmodconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/thierryreding/linux/commit/74fea814b7dcb0764061130164668105002478b0
        git remote add thierryreding https://github.com/thierryreding/linux
        git fetch --no-tags thierryreding for-5.17/work
        git checkout 74fea814b7dcb0764061130164668105002478b0
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

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

>> ERROR: modpost: "xpcs_write" [drivers/net/ethernet/stmicro/stmmac/dwmac-tegra.ko] undefined!
>> ERROR: modpost: "xpcs_read" [drivers/net/ethernet/stmicro/stmmac/dwmac-tegra.ko] undefined!

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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