reproduce (this is a W=1 build):
        git checkout 2d1373e4246da3b58e1df058374ed6b101804e07
        b4 shazam https://lore.kernel.org/r/20260326-ksz87xx_errata_low_loss_connections-v1-1-79a698f43626@exotec.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=$HOME/0day COMPILER=gcc-15.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=openrisc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=openrisc SHELL=/bin/bash dt_binding_check dtbs_check