Hi, On 29.09.23 08:39, Uwe Kleine-König wrote: > On Fri, Sep 29, 2023 at 12:12:46AM +0200, Lino Sanfilippo wrote: >> From: Lino Sanfilippo <l.sanfilippo@xxxxxxxxxx> >> >> If the imx driver cannot support RS485 it sets the UARTS rs485_supported >> structure to NULL. But it still calls uart_get_rs485_mode() which may set >> the RS485_ENABLED flag. >> The flag however is evaluated by the serial core in uart_configure_port() > > I wonder if this is the code location where this problem should be > addressed. Or alternatively don't let uart_get_rs485_mode() set > RS485_ENABLED (and other flags) if rs485_supported doesn't suggest that > this works? > This is indeed the better solution. Especially since the check is then in the serial core and all RS485 supporting drivers benefit from it. I will change this for v2, thanks! >> [...] >> >> Signed-off-by: Lino Sanfilippo <l.sanfilippo@xxxxxxxxxx> > > I don't know how picky Greg is here, but formally you missed to add an > S-o-b line for the sender of this patch (i.e. you with your gmx > address). > Hm, until now there have never been complaints about this. Is this really an issue? Of course I can also S-o-b with my gmx address but adding two S-o-b's for the same person seems a bit odd to me... BR, Lino > Best regards > Uwe >