Hi Nihar, kernel test robot noticed the following build errors: [auto build test ERROR on staging/staging-testing] url: https://github.com/intel-lab-lkp/linux/commits/Nihar-Chaithanya/staging-gpib-Modify-gpib_register_driver-to-return-error-if-it-fails/20241227-035743 base: staging/staging-testing patch link: https://lore.kernel.org/r/20241226193637.241049-8-niharchaithanya%40gmail.com patch subject: [PATCH v4 07/15] staging: gpib: fmh: Handle gpib_register_driver() errors config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20241227/202412271054.Oy0QXjPZ-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241227/202412271054.Oy0QXjPZ-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202412271054.Oy0QXjPZ-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_t1_delay': fmh_gpib.c:(.text+0x512): undefined reference to `nec7210_t1_delay' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_serial_poll_status': fmh_gpib.c:(.text+0x606): undefined reference to `nec7210_serial_poll_status' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_secondary_address': fmh_gpib.c:(.text+0xa56): undefined reference to `nec7210_secondary_address' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_primary_address': fmh_gpib.c:(.text+0xb0e): undefined reference to `nec7210_primary_address' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_update_status': fmh_gpib.c:(.text+0xb8e): undefined reference to `nec7210_update_status' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_parallel_poll_response': fmh_gpib.c:(.text+0xc0e): undefined reference to `nec7210_parallel_poll_response' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_parallel_poll': fmh_gpib.c:(.text+0xc8e): undefined reference to `nec7210_parallel_poll' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_parallel_poll_configure': fmh_gpib.c:(.text+0xd0e): undefined reference to `nec7210_parallel_poll_configure' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_disable_eos': fmh_gpib.c:(.text+0xd86): undefined reference to `nec7210_disable_eos' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_enable_eos': fmh_gpib.c:(.text+0xe16): undefined reference to `nec7210_enable_eos' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_remote_enable': fmh_gpib.c:(.text+0xece): undefined reference to `nec7210_remote_enable' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_interface_clear': fmh_gpib.c:(.text+0xf4e): undefined reference to `nec7210_interface_clear' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_request_system_control': fmh_gpib.c:(.text+0xfce): undefined reference to `nec7210_request_system_control' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_go_to_standby': fmh_gpib.c:(.text+0x1046): undefined reference to `nec7210_go_to_standby' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_take_control': fmh_gpib.c:(.text+0x10ce): undefined reference to `nec7210_take_control' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_command': fmh_gpib.c:(.text+0x115a): undefined reference to `nec7210_command' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_write': fmh_gpib.c:(.text+0x1224): undefined reference to `nec7210_write' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_read': fmh_gpib.c:(.text+0x12e4): undefined reference to `nec7210_read' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_device_match': fmh_gpib.c:(.text+0x146c): undefined reference to `gpib_match_device_path' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_init.isra.0': fmh_gpib.c:(.text+0x25d6): undefined reference to `nec7210_board_reset' s390-linux-ld: fmh_gpib.c:(.text+0x260a): undefined reference to `nec7210_set_handshake_mode' s390-linux-ld: fmh_gpib.c:(.text+0x2722): undefined reference to `nec7210_board_online' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_pci_attach_impl': fmh_gpib.c:(.text+0x28f2): undefined reference to `gpib_pci_get_device' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_pci_detach': fmh_gpib.c:(.text+0x386c): undefined reference to `nec7210_board_reset' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_detach': fmh_gpib.c:(.text+0x3b8e): undefined reference to `nec7210_board_reset' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_fifo_read_countable': fmh_gpib.c:(.text+0x4452): undefined reference to `nec7210_set_reg_bits' s390-linux-ld: fmh_gpib.c:(.text+0x4468): undefined reference to `nec7210_set_reg_bits' s390-linux-ld: fmh_gpib.c:(.text+0x47c8): undefined reference to `nec7210_set_reg_bits' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_fifo_write_countable': fmh_gpib.c:(.text+0x5294): undefined reference to `nec7210_set_reg_bits' s390-linux-ld: fmh_gpib.c:(.text+0x52aa): undefined reference to `nec7210_set_reg_bits' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o:fmh_gpib.c:(.text+0x52fe): more undefined references to `nec7210_set_reg_bits' follow s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_internal_interrupt': fmh_gpib.c:(.text+0x6012): undefined reference to `push_gpib_event' s390-linux-ld: fmh_gpib.c:(.text+0x6040): undefined reference to `nec7210_interrupt_have_status' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_dma_callback': fmh_gpib.c:(.text+0x6564): undefined reference to `nec7210_set_reg_bits' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_fifo_read': fmh_gpib.c:(.text+0x66d6): undefined reference to `nec7210_set_reg_bits' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_dma_write': fmh_gpib.c:(.text+0x6f62): undefined reference to `nec7210_set_reg_bits' s390-linux-ld: fmh_gpib.c:(.text+0x6f78): undefined reference to `nec7210_set_reg_bits' s390-linux-ld: fmh_gpib.c:(.text+0x744c): undefined reference to `nec7210_set_reg_bits' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o:fmh_gpib.c:(.text+0x8142): more undefined references to `nec7210_set_reg_bits' follow s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_exit_module': fmh_gpib.c:(.exit.text+0x2e): undefined reference to `gpib_unregister_driver' s390-linux-ld: fmh_gpib.c:(.exit.text+0x3a): undefined reference to `gpib_unregister_driver' s390-linux-ld: fmh_gpib.c:(.exit.text+0x46): undefined reference to `gpib_unregister_driver' s390-linux-ld: fmh_gpib.c:(.exit.text+0x52): undefined reference to `gpib_unregister_driver' s390-linux-ld: drivers/staging/gpib/fmh_gpib/fmh_gpib.o: in function `fmh_gpib_init_module': fmh_gpib.c:(.init.text+0x9e): undefined reference to `gpib_register_driver' s390-linux-ld: fmh_gpib.c:(.init.text+0xce): undefined reference to `gpib_register_driver' s390-linux-ld: fmh_gpib.c:(.init.text+0x102): undefined reference to `gpib_register_driver' s390-linux-ld: fmh_gpib.c:(.init.text+0x132): undefined reference to `gpib_register_driver' >> s390-linux-ld: fmh_gpib.c:(.init.text+0x15c): undefined reference to `gpib_unregister_driver' s390-linux-ld: fmh_gpib.c:(.init.text+0x16e): undefined reference to `gpib_unregister_driver' s390-linux-ld: fmh_gpib.c:(.init.text+0x180): undefined reference to `gpib_unregister_driver' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki