reproduce (this is a W=1 build):
        # https://github.com/gdamjan/linux/commit/c555d9e3c9bd8c22654cbae8aa9b3a2ab74902d9
        git remote add gdamjan https://github.com/gdamjan/linux
        git fetch --no-tags gdamjan v6.16-rc7/ipu7-imx471
        git checkout c555d9e3c9bd8c22654cbae8aa9b3a2ab74902d9
        # 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