reproduce:
        git remote add lee-mfd https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git
        git fetch lee-mfd for-mfd-fixes
        git checkout lee-mfd/for-mfd-fixes
        b4 shazam https://lore.kernel.org/r/20251215175115.135294-4-sander@svanheule.net
        # 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_BUS --selectors CONFIG_REGMAP_MDIO -a=alpha
        # 2. reproduce by make
           cd linux
           # download the config file from the "config:" link in the report, and save it as .config
           make ARCH=alpha olddefconfig