reproduce (this is a W=1 build):
        git checkout d35b2284e966c0bef3e2182a5c5ea02177dd32e4
        b4 shazam https://lore.kernel.org/r/20240711-loongson1-dma-v9-2-5ce8b5e85a56@gmail.com
        # 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/dma/