reproduce (this is a W=1 build):
        # https://github.com/morimoto/linux/commit/bfa0d5aadb75033c0a6038d125e5e98d4d6311eb
        git remote add morimoto https://github.com/morimoto/linux
        git fetch --no-tags morimoto sound-cleanup-2026-04-20
        git checkout bfa0d5aadb75033c0a6038d125e5e98d4d6311eb

        # install loongarch cross compiling tool for clang build
        # apt-get install binutils-loongarch-linux-gnu
        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=$HOME/0day COMPILER=clang-19 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=loongarch olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-19 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=loongarch SHELL=/bin/bash sound/soc/