reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://github.com/ambarus/linux-0day/commit/56bd958109f1492f0edb0507468d586cac01e81f
        git remote add ambarus https://github.com/ambarus/linux-0day
        git fetch --no-tags ambarus gs101-peric0-usi-uart-i2c-v3-and-serial-fixes-v1-with-u32
        git checkout 56bd958109f1492f0edb0507468d586cac01e81f
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=mips olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash