reproduce (this is a W=1 build):
        git checkout ec8bf8280261294a9b9b4520414b42704c7f9f6b
        b4 shazam https://lore.kernel.org/r/20261015-vsprintf_kallsym-v3-2-c175c27f38b7@linutronix.de

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