On Mon, Nov 25, 2024, at 12:06, Arnd Bergmann wrote: > +unsigned int nr_uarts = ARRAY_SIZE(old_serial_port);; > + Unfortunately, this breaks on non-x86 because of the check added in 59cfc45f17d6 ("serial: 8250: Do nothing if nr_uarts=0"). I still think it's the right idea, but need to unwind further to make this possible, and find a different fix for the bug from that commit. Arnd