tree: https://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue.git dev-queue head: a6c5ae02c186fae2cd3040f328feba345b81a278 commit: 79bf99329dc45d26118260c858dec37c10b8949e [117/120] ice: implement basic E822 PTP support config: i386-randconfig-a015-20210709 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue.git/comm... git remote add tnguy-next-queue https://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue.git git fetch --no-tags tnguy-next-queue dev-queue git checkout 79bf99329dc45d26118260c858dec37c10b8949e # save the attached .config to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_do_ioctl': ice_main.c:(.text+0xb1f): undefined reference to `ice_ptp_get_ts_config' ld: ice_main.c:(.text+0xb28): undefined reference to `ice_ptp_set_ts_config' ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_prepare_for_reset': ice_main.c:(.text+0x1fc6): undefined reference to `ice_ptp_release' ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_misc_intr': ice_main.c:(.text+0x3707): undefined reference to `ice_ptp_process_ts' ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_up_complete': ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_down': ice_main.c:(.text+0x4576): undefined reference to `ice_ptp_link_change' ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_rebuild': ice_main.c:(.text+0x59bd): undefined reference to `ice_ptp_init' ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_remove': ice_main.c:(.text+0x5dbd): undefined reference to `ice_ptp_release' ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `__ice_clean_ctrlq': ice_main.c:(.text+0x63fe): undefined reference to `ice_ptp_link_change' ld: drivers/net/ethernet/intel/ice/ice_main.o: in function `ice_probe': ice_main.c:(.text+0x7d3a): undefined reference to `ice_ptp_init' ld: drivers/net/ethernet/intel/ice/ice_txrx_lib.o: in function `ice_process_skb_fields': ice_txrx_lib.c:(.text+0x1c1): undefined reference to `ice_ptp_rx_hwtstamp' ld: drivers/net/ethernet/intel/ice/ice_txrx.o: in function `ice_xmit_frame_ring': ice_txrx.c:(.text+0xd24): undefined reference to `ice_ptp_request_ts' ld: drivers/net/ethernet/intel/ice/ice_ethtool.o: in function `ice_get_ts_info': ice_ethtool.c:(.text+0x9bd): 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