tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ba31f97d43be41ca99ab72a6131d7c226306865f
commit: 77a781155a659053f3b7e81a0ab115d27ff151cd ice: enable receive hardware timestamping
date:   9 weeks ago
config: microblaze-randconfig-r011-20210814 (attached as .config)
compiler: microblaze-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=77a781155a659053f3b7e81a0ab115d27ff151cd
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 77a781155a659053f3b7e81a0ab115d27ff151cd
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=microblaze SHELL=/bin/bash

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 >>):

   microblaze-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_do_ioctl':
>> (.text+0xa7c): undefined reference to `ice_ptp_get_ts_config'
>> microblaze-linux-ld: (.text+0xa94): undefined reference to `ice_ptp_set_ts_config'
   microblaze-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_prepare_for_reset':
   (.text+0x3740): undefined reference to `ice_ptp_release'
   microblaze-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_remove':
   (.text+0x6910): undefined reference to `ice_ptp_release'
   microblaze-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_rebuild':
   (.text+0x750c): undefined reference to `ice_ptp_init'
   microblaze-linux-ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_probe':
   (.text+0xfd5c): undefined reference to `ice_ptp_init'
   microblaze-linux-ld: drivers/net/ethernet/intel/ice/ice_txrx_lib.o: in function `ice_process_skb_fields':
>> (.text+0x3e4): undefined reference to `ice_ptp_rx_hwtstamp'
   microblaze-linux-ld: drivers/net/ethernet/intel/ice/ice_ethtool.o: in function `ice_get_ts_info':
   (.text+0x1b0c): 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