reproduce (this is a W=1 build):
        # https://github.com/cornelisnetworks/linux/commit/270a4c12edcf733cfccd4d32a531b806cd5abc79
        git remote add cornelisnetworks https://github.com/cornelisnetworks/linux.git
        git fetch --no-tags cornelisnetworks for-upstream-20250117
        git checkout 270a4c12edcf733cfccd4d32a531b806cd5abc79
        # 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/infiniband/hw/hfi1/