reproduce (this is a W=1 build):
        git checkout c9cfc122f03711a5124b4aafab3211cf4d35a2ac
        b4 shazam https://lore.kernel.org/r/20251104182446.863422-7-fabio.m.de.francesco@linux.intel.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/cxl/core/