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/qais-yousef/linux/commit/e3d0c229d3ce487080291ad232b68805d3c9f830
        git remote add qais-yousef https://github.com/qais-yousef/linux
        git fetch --no-tags qais-yousef uclamp-max-aggregation
        git checkout e3d0c229d3ce487080291ad232b68805d3c9f830
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-19 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-19 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash kernel/sched/