reproduce (this is a W=1 build):
        # https://github.com/isilence/linux/commit/eafcbbf7e75e75e98d0791b843fae0f2423a4ecd
        git remote add isilence https://github.com/isilence/linux
        git fetch --no-tags isilence rw-dmabuf-v6
        git checkout eafcbbf7e75e75e98d0791b843fae0f2423a4ecd

        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=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 prepare