reproduce:
        git remote add broonie-spi https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git
        git fetch broonie-spi for-next
        git checkout broonie-spi/for-next
        b4 shazam https://lore.kernel.org/r/20250530234941.950431-1-chunkeey@gmail.com
        # choose either of the following two methods to reproduce the issue
        # 1. reproduce by kismet
           # install kmax per https://github.com/paulgazz/kmax/blob/master/README.md
           kismet --linux-ksrc=linux --selectees CONFIG_MDIO_MSCC_MIIM --selectors CONFIG_NET_DSA_MSCC_OCELOT_EXT -a=s390
        # 2. reproduce by make
           cd linux
           # download the config file from the "config:" link in the report, and save it as .config
           make ARCH=s390 olddefconfig