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/mdraid/linux.git/commit/?id=7ad00dd67641fd509fff206f70eecb1364593eff
        git remote add mdraid https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux
        git fetch --no-tags mdraid md-6.14
        git checkout 7ad00dd67641fd509fff206f70eecb1364593eff
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=sh olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-14.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash drivers/