reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # install mips cross compiling tool for clang build
        # apt-get install binutils-mipsel-linux-gnu
        # https://github.com/dvyukov/linux/commit/37187db99b42dfb9784b42cb759c3f628de0d808
        git remote add dvyukov https://github.com/dvyukov/linux
        git fetch --no-tags dvyukov dvyukov-prot-kernonly
        git checkout 37187db99b42dfb9784b42cb759c3f628de0d808
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-16 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=mips olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-16 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash mm/