Re: [PATCH v5 3/3] serial: core: Fix serial core controller port name to show controller id

[Greg Kroah-Hartman]

On Tue, Jul 25, 2023 at 12:07:04PM +0300, Andy Shevchenko wrote:
> On Tue, Jul 25, 2023 at 08:42:12AM +0300, Tony Lindgren wrote:
> > We are missing the serial core controller id for the serial core port
> > name. Let's fix the issue for sane sysfs output, and to avoid issues
> > addressing serial ports later on.
> > 
> > And as we're now showing the controller id, the "ctrl" and "port" prefix
> > for the DEVNAME become useless, we can just drop them. Let's standardize on
> > DEVNAME:0 for controller name, where 0 is the controller id. And
> > DEVNAME:0.0 for port name, where 0.0 are the controller id and port id.
> > 
> > This makes the sysfs output nicer, on qemu for example:
> > 
> > $ ls /sys/bus/serial-base/devices
> > 00:04:0         serial8250:0    serial8250:0.2
> > 00:04:0.0       serial8250:0.1  serial8250:0.3
> 
> Hmm... Why 0.0 is absent for serial8250?
> Btw, what was before this patch there?
> And maybe ls -l will look more informative?
> 
> > Fixes: 84a9582fd203 ("serial: core: Start managing serial controllers to enable runtime PM")
> > Reported-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> > Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> > Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
> > ---
> > 
> > Andy, I kept your Reviewed-by although I updated the device naming and
> > description, does the patch still look OK to you?
> 
> Looks okay, but I have a question above.

Can I get an ack for this if you are ok with these fixes?

thanks,

greg k-h