reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-52-g1cf3d98c-dirty
        # https://github.com/intel-lab-lkp/linux/commit/733eb0cf65832888b13fd12e1bf551ff9222fccc
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review marius-cristea-microchip-com/dt-bindings-iio-adc-adding-support-for-PAC193X/20240122-165539
        git checkout 733eb0cf65832888b13fd12e1bf551ff9222fccc
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__ -fmax-errors=unlimited -fmax-warnings=unlimited' O=build_dir ARCH=x86_64 olddefconfig
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__ -fmax-errors=unlimited -fmax-warnings=unlimited' O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/iio/adc/ drivers/pinctrl/nuvoton/