[PATCH] Input: atkbd - rate-limit unknown key warnings
From: Zhang Heng <hidden>
Date: 2026-09-21 13:19:54
Also in:
lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
Replace dev_warn() with dev_warn_ratelimited() for unmapped scancode warnings, matching the existing rate-limited handling of spurious ACK/NAK events in the same function. Link: https://bugzilla.kernel.org/show_bug.cgi?id=221214 Signed-off-by: Zhang Heng <redacted> --- drivers/input/keyboard/atkbd.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 93650c98206d..26523329040b 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c@@ -497,13 +497,11 @@ static void atkbd_receive_byte(struct ps2dev *ps2dev, u8 data) case ATKBD_KEY_NULL: break; case ATKBD_KEY_UNKNOWN: - dev_warn(&serio->dev, - "Unknown key %s (%s set %d, code %#x on %s).\n", - atkbd->release ? "released" : "pressed", - atkbd->translated ? "translated" : "raw", - atkbd->set, code, serio->phys); - dev_warn(&serio->dev, - "Use 'setkeycodes %s%02x <keycode>' to make it known.\n", - code & 0x80 ? "e0" : "", code & 0x7f); + dev_warn_ratelimited(&serio->dev, + "Unknown key %s (%s set %d, code %#x on %s); use 'setkeycodes %s%02x <keycode>' to make it known.\n", + atkbd->release ? "released" : "pressed", + atkbd->translated ? "translated" : "raw", + atkbd->set, code, serio->phys, + code & 0x80 ? "e0" : "", code & 0x7f); input_sync(dev); break;
--
2.25.1