reproduce (this is a W=1 build):
        # https://github.com/morimoto/linux/commit/37f1f58e36152e534fc127762820579e3a28ea85
        git remote add morimoto https://github.com/morimoto/linux
        git fetch --no-tags morimoto sound-cleanup-2025-12-01
        git checkout 37f1f58e36152e534fc127762820579e3a28ea85

        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=nios2 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=nios2 SHELL=/bin/bash sound/soc/rockchip/ sound/soc/sti/ sound/soc/sunxi/ sound/soc/uniphier/