reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=ae065d0ce9e36ca4efdfb9b96ce3395bd1c19372
        git remote add tiwai-sound https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
        git fetch --no-tags tiwai-sound for-linus
        git checkout ae065d0ce9e36ca4efdfb9b96ce3395bd1c19372
        # 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 sound/pci/hda/