The commit 9e70a5e109a4 ("printk: Add per-console suspended state")
introduced the CON_SUSPENDED flag for consoles. The suspended consoles
will stop receiving messages, so don't unblank suspended consoles
because it won't be showing anything either way.
Signed-off-by: Marcos Paulo de Souza <mpdesouza@xxxxxxxx>
---
kernel/printk/printk.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index fbbaec06c9f3..4b7ed40bf808 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -3342,7 +3342,12 @@ void console_unblank(void)
*/
cookie = console_srcu_read_lock();
for_each_console_srcu(c) {
- if ((console_srcu_read_flags(c) & CON_ENABLED) && c->unblank) {
+ short flags = console_srcu_read_flags(c);
+
+ if (flags & CON_SUSPENDED)
+ continue;
+
+ if ((flags & CON_ENABLED) && c->unblank) {
found_unblank = true;
break;
}
@@ -3379,7 +3384,12 @@ void console_unblank(void)
cookie = console_srcu_read_lock();
for_each_console_srcu(c) {
- if ((console_srcu_read_flags(c) & CON_ENABLED) && c->unblank)
+ short flags = console_srcu_read_flags(c);
+
+ if (flags & CON_SUSPENDED)
+ continue;
+
+ if ((flags & CON_ENABLED) && c->unblank)
c->unblank();
}
console_srcu_read_unlock(cookie);
--
2.48.1
