reproduce (this is a W=1 build):
        git remote add drm-msm https://gitlab.freedesktop.org/drm/msm.git
        git fetch --no-tags drm-msm msm-next
        git checkout 3392291fc509d8ad6e4ad90f15b0a193f721cbc9

        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-16 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=riscv olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-16 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/gpu/drm/msm/