reproduce (this is a W=1 build):
        git checkout 2d5404caa8c7bb5c4e0435f94b28834ae5456623
        b4 shazam https://lore.kernel.org/r/5051f2375ff6218e7d44ce0c298efd5f9ee56964.1731303328.git.unicorn_wang@outlook.com
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=um olddefconfig
        make W=1 O=build_dir ARCH=um SHELL=/bin/bash drivers/pci/controller/cadence/