tty: sysfs: Add nbcon support for 'active'

Allow the 'active' attribute to list nbcon consoles.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20240904120536.115780-15-john.ogness@linutronix.de
Signed-off-by: Petr Mladek <pmladek@suse.com>

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 407b0d8..9140825 100644 (file)
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -3567,7 +3567,7 @@ static ssize_t show_cons_active(struct device *dev,
        for_each_console(c) {
                if (!c->device)
                        continue;
-               if (!c->write)
+               if (!(c->flags & CON_NBCON) && !c->write)
                        continue;
                if ((c->flags & CON_ENABLED) == 0)
                        continue;