reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git/commit/?id=e049aa93ad2a983301a86570199d254379732d2d
        git remote add chunkuang-hu https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git
        git fetch --no-tags chunkuang-hu mediatek-cmdq11
        git checkout e049aa93ad2a983301a86570199d254379732d2d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/media/platform/mediatek/mdp3/