tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   2f5065a0bc9d0afb45f2ae284bd525d55ce82c33
commit: 7036440eab3e2d47a775d4616909f8235488d714 ARM: omap1: enable multiplatform
date:   5 months ago
config: arm-randconfig-r032-20221106
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
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=7036440eab3e2d47a775d4616909f8235488d714
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 7036440eab3e2d47a775d4616909f8235488d714
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm 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 >>):

   arm-linux-gnueabi-ld: drivers/video/backlight/omap1_bl.o: in function `omapbl_probe':
>> omap1_bl.c:(.text+0x1b4): undefined reference to `omap_cfg_reg'

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