[PATCH v1 03/15] ACPI: button: Improve warning message regarding lid state

From: Rafael J. Wysocki

Date: Mon Jun 01 2026 - 13:15:08 EST


From: "Rafael J. Wysocki" <rafael.j.wysocki@xxxxxxxxx>

The warning message regarding an unexpected lid state printed by
acpi_lid_notify_state() is quite cryptic and there is no information
in it to indicate that it is about a platform firmware defect. In
fact, it can only be understood after reading the comment below the
statement printing it.

For this reason, replace it with a more direct one including FW_BUG so
its connection to a firmware issue is clearer.

While at it, fix up a comment preceding the statement printing the
message in question.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
drivers/acpi/button.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 0b96db762bea..d2c2b8105639 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -227,8 +227,8 @@ static int acpi_lid_notify_state(struct acpi_button *button, int state)
ms_to_ktime(lid_report_interval));
if (button->last_state == !!state &&
ktime_after(ktime_get(), next_report)) {
- /* Complain the buggy firmware */
- pr_warn_once("The lid device is not compliant to SW_LID.\n");
+ /* Complain about the buggy firmware. */
+ pr_warn_once(FW_BUG "Unexpected lid state reported by firmware\n");

/*
* Send the unreliable complement switch event:
--
2.51.0