Re: [PATCH net-next v4 3/6] net: stmmac: Refactor FPE functions to generic version

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

Hi Furong,

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/Furong-Xu/net-stmmac-Introduce-separate-files-for-FPE-implementation/20241024-163526
base:   net-next/main
patch link:    https://lore.kernel.org/r/cfc647f0d031517f9ec9095235a574aad9dc2c95.1729757625.git.0x1207%40gmail.com
patch subject: [PATCH net-next v4 3/6] net: stmmac: Refactor FPE functions to generic version
config: arm-sunxi_defconfig (https://download.01.org/0day-ci/archive/20241026/202410260107.eXOai3Uw-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 13.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241026/202410260107.eXOai3Uw-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/202410260107.eXOai3Uw-lkp@intel.com/

All errors (new ones prefixed by >>):

   arm-linux-gnueabi-ld: drivers/net/ethernet/stmicro/stmmac/stmmac_fpe.o: in function `stmmac_fpe_configure':
>> stmmac_fpe.c:(.text+0x140): undefined reference to `__ffsdi2'

-- 
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https://github.com/intel/lkp-tests/wiki