reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/krzk/linux/commit/e21b73fba00f3539873c978ceaa948061687684f
        git remote add krzk-github https://github.com/krzk/linux
        git fetch --no-tags krzk-github n/audio-sm8650-on-neil-codelinaro-topic-sm8650-upstream-integ
        git checkout e21b73fba00f3539873c978ceaa948061687684f
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/spmi/