reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm.git/commit/?id=ea1ca762328194de780a8e92df0b2e41bf6eeed2
        git remote add ulfh-pm https://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm.git
        git fetch --no-tags ulfh-pm next
        git checkout ea1ca762328194de780a8e92df0b2e41bf6eeed2

        # 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=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/pmdomain/