reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://github.com/qais-yousef/linux/commit/3d803d07795740e3f0c18046d900f2a84b5473a3
        git remote add qais-yousef https://github.com/qais-yousef/linux
        git fetch --no-tags qais-yousef uclamp-max-aggregation
        git checkout 3d803d07795740e3f0c18046d900f2a84b5473a3
        # 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 kernel/