reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git/commit/?id=cdd7cbf79d6c020c83a34985cae63f91f8f8a4c9
        git remote add soc https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git
        git fetch --no-tags soc board-remove
        git checkout cdd7cbf79d6c020c83a34985cae63f91f8f8a4c9

        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=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=i386 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/mfd/