reproduce (this is a W=1 build):
        git checkout 0e8b43b5a5ef2dd52c454158e7fd8a927d796eb4
        b4 shazam https://lore.kernel.org/r/20261105-vrr-limiter-uapi-v2-20-55f4215be2c2@collabora.com

        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=$HOME/0day COMPILER=gcc-16.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=loongarch olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-16.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=loongarch SHELL=/bin/bash drivers/gpu/drm/display/