reproduce (this is a W=1 build):
        # https://github.com/dlech/linux/commit/b5b1b66752a90560368bb9ac27e8aadf2b598362
        git remote add dlech https://github.com/dlech/linux
        git fetch --no-tags dlech b4/iio-adc-ti-ads122c14
        git checkout b5b1b66752a90560368bb9ac27e8aadf2b598362

        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=$HOME/0day COMPILER=gcc-11.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=nios2 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=nios2 SHELL=/bin/bash