reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-66-g0196afe1
        # https://github.com/intel-lab-lkp/linux/commit/89440b9eb2b1900720561ee0c6235dd785da8e37
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Babu-Moger/x86-cpufeatures-Add-support-for-L3-Smart-Data-Cache-Injection-Allocation-Enforcement/20250612-053050
        git checkout 89440b9eb2b1900720561ee0c6235dd785da8e37
        # 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=i386 olddefconfig
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__ -fmax-errors=unlimited -fmax-warnings=unlimited' O=build_dir ARCH=i386 SHELL=/bin/bash fs/resctrl/