tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   94db6b12c18d7cf7c5726dbe816c2248494a778d
commit: 6c6fa1a00ad3df994c96af9468cc83f225df9df4 [4222/6614] net: ethernet: renesas: rswitch: Add R-Car Gen4 gPTP support
config: s390-randconfig-r024-20221109
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 463da45892e2d2a262277b91b96f5f8c05dc25d0)
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
        # install s390 cross compiling tool for clang build
        # apt-get install binutils-s390x-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=6c6fa1a00ad3df994c96af9468cc83f225df9df4
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 6c6fa1a00ad3df994c96af9468cc83f225df9df4
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   s390x-linux-ld: DWARF error: could not find abbrev number 4453
   drivers/net/ethernet/renesas/rswitch.o: in function `rswitch_get_ts_info':
>> rswitch.c:(.text+0x2a28): undefined reference to `ptp_clock_index'
   s390x-linux-ld: DWARF error: could not find abbrev number 11
   drivers/net/ethernet/renesas/rcar_gen4_ptp.o: in function `rcar_gen4_ptp_register':
>> rcar_gen4_ptp.c:(.text+0xd6): undefined reference to `ptp_clock_register'
   s390x-linux-ld: drivers/net/ethernet/renesas/rcar_gen4_ptp.o: in function `rcar_gen4_ptp_unregister':
>> rcar_gen4_ptp.c:(.text+0x198): undefined reference to `ptp_clock_unregister'

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp