reproduce (this is a W=1 build):
        # https://github.com/superna9999/linux/commit/29cdaf388e5fb3df4c09814c374e4aec27bddfed
        git remote add superna9999 https://github.com/superna9999/linux
        git fetch --no-tags superna9999 topic/sm8650/ayaneo-pocket-s2/pmos-v3
        git checkout 29cdaf388e5fb3df4c09814c374e4aec27bddfed

        # install s390 cross compiling tool for clang build
        # apt-get install binutils-s390x-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=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=s390 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash sound/soc/qcom/qdsp6/