reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/9a7f4baeaec1080905ef82c565eb14c772479f69
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Guodong-Xu/dt-bindings-riscv-sort-multi-letter-Z-extensions-alphanumerically/20260701-211251
        git checkout 9a7f4baeaec1080905ef82c565eb14c772479f69

        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv-linux-gnu
        # clang-23 might not be officially released. Try a lower version if installation fails.
        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=$HOME/0day COMPILER=clang-23 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=riscv olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-23 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash dt_binding_check dtbs_check