linux-kernel - [PATCH] platform/x86: ideapad-laptop: Fix fn-lock LED on Yoga 14ITL5 laptops

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 7 Nov 2022 23:25:13 +0000
From:   "Rawat, Arnav" <arnavr3@...inois.edu>
To:     "ike.pan@...onical.com" <ike.pan@...onical.com>,
        "hdegoede@...hat.com" <hdegoede@...hat.com>,
        "markgross@...nel.org" <markgross@...nel.org>
CC:     "platform-driver-x86@...r.kernel.org" 
        <platform-driver-x86@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Rawat, Arnav" <arnavr3@...inois.edu>
Subject: [PATCH] platform/x86: ideapad-laptop: Fix fn-lock LED on Yoga 14ITL5
  laptops

>From 5bce4f5860d54e125715d896f144add831d19483 Mon Sep 17 00:00:00 2001
From: Arnav Rawat <arnavr3@...inois.edu>
Date: Mon, 7 Nov 2022 17:12:41 -0600
Subject: [PATCH] platform/x86: ideapad-laptop: Fix fn-lock LED on Yoga 14ITL5
 laptops

The commit 3ae86d2d4704796ee658a34245cb86e68c40c5d7: Fix Legion 5 Fnlock LED
set the WMI id for the fn-lock event on some Legion 5 laptops. However,
the same WMI ID is also sent on some Yoga laptops. Here, setting the fn-lock
state is not valid behavior, and causes the ec to spam interrupts until the
laptop is rebooted, so include a check for this line of laptops.

Signed-off-by: Arnav Rawat <arnavr3@...inois.edu>
---
 drivers/platform/x86/ideapad-laptop.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/
ideapad-laptop.c
index abd0c81d62c4..f529410d7015 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -1501,7 +1501,7 @@ static void ideapad_wmi_notify(u32 value, void *context)
 		ideapad_input_report(priv, value);
 		break;
 	case 208:
-		if (!eval_hals(priv->adev->handle, &result)) {
+		if (!eval_hals(priv->adev->handle, &result) && 
strcmp(dmi_get_system_info(DMI_PRODUCT_NAME), "82BG")) {
 			bool state = test_bit(HALS_FNLOCK_STATE_BIT, 
&result);
 
 			exec_sals(priv->adev->handle, state ? 
SALS_FNLOCK_ON : SALS_FNLOCK_OFF);
-- 
2.37.3