reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://github.com/nunojsa/linux/commit/93939e195eb7ec55a0bdefa022c33008ccf95e3c
        git remote add nsa https://github.com/nunojsa/linux
        git fetch --no-tags nsa b4/dev-iio-ad9467-new-devs
        git checkout 93939e195eb7ec55a0bdefa022c33008ccf95e3c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=i386 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/iio/dac/