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From: John Ogness <john.ogness@linutronix.de>
Date: Fri, 22 Sep 2023 14:31:09 +0000
Subject: [PATCH 42/48] tty: sysfs: Add nbcon support for 'active'
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.8/older/patches-6.8.2-rt11.tar.xz
Allow the 'active' attribute to list nbcon consoles.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
drivers/tty/tty_io.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -3567,8 +3567,13 @@ static ssize_t show_cons_active(struct d
for_each_console(c) {
if (!c->device)
continue;
- if (!c->write)
- continue;
+ if (c->flags & CON_NBCON) {
+ if (!c->write_atomic && !c->write_thread)
+ continue;
+ } else {
+ if (!c->write)
+ continue;
+ }
if ((c->flags & CON_ENABLED) == 0)
continue;
cs[i++] = c;
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