reproduce (this is a W=1 build):
        git checkout b876ebf2c06042f78b2c9c47c53ffe54c7e480a2
        b4 shazam https://lore.kernel.org/r/20260319-spi-fsl-lpspi-cleanups-v2-3-02b56c5d44a8@pengutronix.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=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash drivers/gpu/drm/msm/ drivers/spi/