reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/daveh/devel.git/commit/?id=61c21b2d8b57e9b2d48b774618c1bd19ce7a3a59
        git remote add daveh-devel https://git.kernel.org/pub/scm/linux/kernel/git/daveh/devel.git
        git fetch --no-tags daveh-devel old-ucode-platform
        git checkout 61c21b2d8b57e9b2d48b774618c1bd19ce7a3a59

        # install loongarch cross compiling tool for clang build
        # apt-get install binutils-loongarch-linux-gnu
        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=$HOME/0day COMPILER=clang-19 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=loongarch olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-19 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=loongarch SHELL=/bin/bash drivers/peci/