reproduce (this is a W=1 build):
        # https://github.com/weiny2/linux-kernel/commit/54947cbd680460aa9a09c36e86f83b47a334c3a2
        git remote add weiny2 https://github.com/weiny2/linux-kernel.git
        git fetch --no-tags weiny2 dcd-v4-2024-12-10
        git checkout 54947cbd680460aa9a09c36e86f83b47a334c3a2
        # 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/