reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        git checkout 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
        b4 shazam https://lore.kernel.org/r/20250616152515.966480-1-18255117159@163.com
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
        ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/pci/controller/dwc/