reproduce (this is a W=1 build):
        # https://github.com/bvanassche/linux/commit/fbd1337059d2e2acd851258f7aecd627917c4f7b
        git remote add bvanassche https://github.com/bvanassche/linux
        git fetch --no-tags bvanassche copy-offloading
        git checkout fbd1337059d2e2acd851258f7aecd627917c4f7b

        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash block/