[v2,0/3] Serial core controller port device name fixes

Message

Tony Lindgren July 20, 2023, 5:10 a.m. UTC

A few issues have been found with device naming for the serial core
controller port device. These issues currently affect mostly the output
for /sys/bus/serial-base/devices, but need to be also fixed to avoid
port addressing issues later on. It would be good to get these fixes into
the -rc cycle to avoid folks possibly trying to use the incorrect sysfs
port device names for finding uart ports for example.

Regards,

Tony

Changes since v1:
- Port id cannot be negative as noted by Jiri

- Controller id cannot be negative as noted by Andy

- Port name is missing the controller instance as noted by Andy

Tony Lindgren (3):
  serial: core: Controller id cannot be negative
  serial: core: Fix serial core port id to not use port->line
  serial: core: Fix serial core controller port name to show controller
    id

 drivers/tty/serial/8250/8250_core.c  |  2 ++
 drivers/tty/serial/serial_base_bus.c | 33 ++++++++++++++++++----------
 include/linux/serial_core.h          |  3 ++-
 3 files changed, 25 insertions(+), 13 deletions(-)