reproduce (this is a W=1 build):
        # https://github.com/AsahiLinux/linux/commit/bb0656db5a81399cee865239cc885749f06e3d04
        git remote add asahilinux https://github.com/AsahiLinux/linux
        git fetch --no-tags asahilinux tbt-reset-wip
        git checkout bb0656db5a81399cee865239cc885749f06e3d04

        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=$HOME/0day COMPILER=gcc-16.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-16.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/