reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git/commit/?id=36ab8cea47b0d4a3c5067577430c147a903b5261
        git remote add sudeep-holla https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git
        git fetch --no-tags sudeep-holla android13-5.10/ffa
        git checkout 36ab8cea47b0d4a3c5067577430c147a903b5261
        # 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