reproduce (this is a W=1 build):
        # https://github.com/thierryreding/linux/commit/f8c811e8798b33a01acd81ce26d1b99e36747e10
        git remote add thierryreding https://github.com/thierryreding/linux
        git fetch --no-tags thierryreding pmc
        git checkout f8c811e8798b33a01acd81ce26d1b99e36747e10

        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # clang-22 might not be officially released. Try a lower version if installation fails.
        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=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash