reproduce (this is a W=1 build):
        git checkout 47ac09b91befbb6a235ab620c32af719f8208399
        b4 shazam https://lore.kernel.org/r/20240821105943.230281-12-ada@thorsis.com
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/nvmem/