Remove the TYPE_SERIAL_IO which is simply a superset of TYPE_SERIAL_MM, as suggested by Paolo and Peter here: https://www.mail-archive.com/qemu-devel@nongnu.org/msg721806.html
Philippe Mathieu-Daudé (2): hw/mips/mipssim: Use MMIO serial device on fake ISA I/O hw/char/serial: Remove TYPE_SERIAL_IO (superset of TYPE_SERIAL_MM) include/hw/char/serial.h | 9 --------- hw/char/serial.c | 41 ---------------------------------------- hw/mips/mipssim.c | 4 +++- 3 files changed, 3 insertions(+), 51 deletions(-) -- 2.21.3