[UNTESTED 3/3] thinkpad-acpi: silence false-positive-prone pr_warn

[Henrique de Moraes Holschuh <hmh-N3TV7GIv+o9fyO9Q7EP/yw@public.gmane.org>]

Do not consider unknown HKEY events in the 0x6000 range to be thermal
warnings.  Instead, handle them as a generic unknown HKEY event, which
are reported to the kernel log at priority "notice", and do not trigger
a thermal registers state dump to the log.

Signed-off-by: Henrique de Moraes Holschuh <hmh-N3TV7GIv+o9fyO9Q7EP/yw@public.gmane.org>
---
 drivers/platform/x86/thinkpad_acpi.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 3d70ef7e8a68..a0e9ce0d85b9 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -4039,8 +4039,6 @@ static bool hotkey_notify_6xxx(const u32 hkey,
 				 bool *send_acpi_ev,
 				 bool *ignore_acpi_ev)
 {
-	bool known = true;
-
 	/* 0x6000-0x6FFF: thermal alarms/notices and keyboard events */
 	*send_acpi_ev = true;
 	*ignore_acpi_ev = false;
@@ -4107,13 +4105,12 @@ static bool hotkey_notify_6xxx(const u32 hkey,
 		return true;
 
 	default:
-		pr_warn("unknown possible thermal alarm or keyboard event received\n");
-		known = false;
+		/* report simply as unknown, no sensor dump */
+		return false;
 	}
 
 	thermal_dump_all_sensors();
-
-	return known;
+	return true;
 }
 
 static void hotkey_notify(struct ibm_struct *ibm, u32 event)
-- 
2.11.0


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