reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-66-g0196afe1
        # https://github.com/intel-lab-lkp/linux/commit/fe6faac115aa8985a0965d9e7ec7765ee97a90b8
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Kinsey-Ho/mm-don-t-hold-css-refcnt-during-traversal/20240725-030750
        git checkout fe6faac115aa8985a0965d9e7ec7765ee97a90b8
        # 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 crypto/ drivers/gpu/drm/ fs/bcachefs/ fs/ntfs3/ lib/lzo/ mm/ net/ceph/