reproduce (this is a W=1 build):
        # https://github.com/ClangBuiltLinux/linux/commit/532a7ac2d57bb5674f5feffb4ba378f8a32f3bcf
        git remote add clangbuiltlinux https://github.com/ClangBuiltLinux/linux
        git fetch --no-tags clangbuiltlinux question_mark_operator
        git checkout 532a7ac2d57bb5674f5feffb4ba378f8a32f3bcf

        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=$HOME/0day COMPILER=gcc-16.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=parisc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-16.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=parisc SHELL=/bin/bash drivers/gpu/drm/