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/kvalo/ath.git/commit/?id=5e4b86c9b76950ec6bf056e17e80d6611df66182
        git remote add kvalo-ath https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
        git fetch --no-tags kvalo-ath pending
        git checkout 5e4b86c9b76950ec6bf056e17e80d6611df66182
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=i386 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/net/wireless/ath/ath12k/