reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d0a3ac549f389c1511a4df0d7638536305205d20
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout d0a3ac549f389c1511a4df0d7638536305205d20
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.4.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.4.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/android/ drivers/block/drbd/ drivers/clk/ drivers/dma/xilinx/ drivers/gpu/drm/ drivers/hwmon/ drivers/leds/ drivers/misc/ drivers/net/ethernet/broadcom/ drivers/nfc/pn533/ drivers/usb/dwc2/ fs/ kernel/ net/8021q/