tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   7d9c6b8147bdd76d7eb2cf6f74f84c6918ae0939
commit: ea9b847cda647b9849b0b9fa0447e876a1ac62e1 [8338/10875] ice: enable transmit timestamps for E810 devices
config: powerpc64-randconfig-c004-20210617 (attached as .config)
compiler: powerpc-linux-gcc (GCC) 9.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=ea9b847cda647b9849b0b9fa0447e876a1ac62e1
        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 ea9b847cda647b9849b0b9fa0447e876a1ac62e1
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc64 

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

All errors (new ones prefixed by >>):

   powerpc-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_do_ioctl':
   ice_main.c:(.text.ice_do_ioctl+0x60): undefined reference to `ice_ptp_get_ts_config'
   powerpc-linux-ld: ice_main.c:(.text.ice_do_ioctl+0x9c): undefined reference to `ice_ptp_set_ts_config'
   powerpc-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_rebuild':
   ice_main.c:(.text.ice_rebuild+0x424): undefined reference to `ice_ptp_init'
   powerpc-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_prepare_for_reset':
   ice_main.c:(.text.ice_prepare_for_reset+0x1e8): undefined reference to `ice_ptp_release'
   powerpc-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_remove':
   ice_main.c:(.text.ice_remove+0x338): undefined reference to `ice_ptp_release'
   powerpc-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_misc_intr':
>> ice_main.c:(.text.ice_misc_intr+0x31c): undefined reference to `ice_ptp_process_ts'
   powerpc-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_probe':
   ice_main.c:(.text.ice_probe+0x13b8): undefined reference to `ice_ptp_init'
   powerpc-linux-ld: drivers/net/ethernet/intel/ice/ice_txrx_lib.o: in function `ice_process_skb_fields':
   ice_txrx_lib.c:(.text.ice_process_skb_fields+0x210): undefined reference to `ice_ptp_rx_hwtstamp'
   powerpc-linux-ld: drivers/net/ethernet/intel/ice/ice_txrx.o: in function `ice_start_xmit':
>> ice_txrx.c:(.text.ice_start_xmit+0xa7c): undefined reference to `ice_ptp_request_ts'
   powerpc-linux-ld: drivers/net/ethernet/intel/ice/ice_ethtool.o: in function `ice_get_ts_info':
   ice_ethtool.c:(.text.ice_get_ts_info+0x4c): undefined reference to `ice_get_ptp_clock_index'

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