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/joel/bmc.git/commit/?id=de43a841c9b6808ff0a0669cbef81cb26913d6f7
        git remote add joel-bmc https://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc.git
        git fetch --no-tags joel-bmc for-next
        git checkout de43a841c9b6808ff0a0669cbef81cb26913d6f7
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash dtbs_check