reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/linux.git/commit/?id=c7e5798c025e652428c0b5164fedfc23d26bea33
        git remote add lpieralisi https://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/linux.git
        git fetch --no-tags lpieralisi dev/gic-v5-acpi
        git checkout c7e5798c025e652428c0b5164fedfc23d26bea33

        # 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