linux-kernel - Re: [PATCH 1/5] tty: add port flag to suppress ready signalling on open

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Message-ID: <X8YC1UGSfaarKMcV@localhost>
Date:   Tue, 1 Dec 2020 09:46:13 +0100
From:   Johan Hovold <johan@...nel.org>
To:     Jiri Slaby <jirislaby@...nel.org>
Cc:     Johan Hovold <johan@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Mychaela N . Falconia" <falcon@...ecalypso.org>,
        linux-serial@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5] tty: add port flag to suppress ready signalling on
 open

On Tue, Dec 01, 2020 at 06:49:07AM +0100, Jiri Slaby wrote:
> On 30. 11. 20, 16:37, Johan Hovold wrote:
> > --- a/include/linux/tty.h
> > +++ b/include/linux/tty.h
> > @@ -683,6 +684,19 @@ static inline void tty_port_set_kopened(struct tty_port *port, bool val)
> >   		clear_bit(TTY_PORT_KOPENED, &port->iflags);
> >   }
> >   
> > +static inline bool tty_port_nordy(struct tty_port *port)
> 
> port can be const here.

Sure, but see below.

> > +{
> > +	return test_bit(TTY_PORT_NORDY, &port->iflags);
> > +}
> > +
> > +static inline void tty_port_set_nordy(struct tty_port *port, bool val)
> > +{
> > +	if (val)
> > +		set_bit(TTY_PORT_NORDY, &port->iflags);
> > +	else
> > +		clear_bit(TTY_PORT_NORDY, &port->iflags);
> 
> We have assign_bit() for these cases these days.

Right, but for both your comments this follows the pattern used by the
other port-flag helpers.

I can add a preparatory patch updating the current helpers, but I don't
think this needs to be a blocker.

Johan