reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/commit/?id=a17871778ee28e4df054521e966e9f37c61f541b
        git remote add net-next https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
        git fetch --no-tags net-next main
        git checkout a17871778ee28e4df054521e966e9f37c61f541b

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/net/ethernet/cadence/