On Thu, 05 Oct 2023, Starke, Daniel wrote:
> > > Would something like this tick that box?
> > >
> > > diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index
> > > 1f3aba607cd51..5c1d2fcd5d9e2 100644
> > > --- a/drivers/tty/n_gsm.c
> > > +++ b/drivers/tty/n_gsm.c
> > > @@ -3716,6 +3716,10 @@ static ssize_t gsmld_write(struct tty_struct *tty, struct file *file,
> > > if (!gsm)
> > > return -ENODEV;
> > >
> > > + /* The GSM line discipline does not support binding to console */
> > > + if (strncmp(tty->name, "tty", 3))
> > > + return -EINVAL;
> >
> > No, that's not going to work, some consoles do not start with "tty" :(
Ah, you mean there are others that we need to consider?
I was just covering off con_write() from drivers/tty/vt/vt.c.
Does anyone have a counter proposal?
> Also, I would recommend exiting as early as possible. E.g. in gsmld_open().
Good suggestion.
> And please retain support for real serial devices (e.g. ttyS, ttyUSB,
> ttyACM, ...).
Okay, so it's "tty{0-9}*$" that should be excluded?
Plus others that Greg alluded to?
Is there a definitive accept / reject list?
--
Lee Jones [李琼斯]
