linux-kernel - [PATCH 2/4] ACPI: OSI: Remove Linux-Lenovo-NV-HDMI-Audio

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

Message-ID: <20220823185134.14464-3-mario.limonciello@amd.com>
Date:   Tue, 23 Aug 2022 13:51:32 -0500
From:   Mario Limonciello <mario.limonciello@....com>
To:     <rafael@...nel.org>, Len Brown <lenb@...nel.org>
CC:     <nouveau@...ts.freedesktop.org>, <hdegoede@...hat.com>,
        <ddadap@...dia.com>, <Dell.Client.Kernel@...l.com>,
        <kai.heng.feng@...onical.com>, <kherbst@...hat.com>,
        Mario Limonciello <mario.limonciello@....com>,
        Lyude Paul <lyude@...hat.com>, <linux-acpi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/4] ACPI: OSI: Remove Linux-Lenovo-NV-HDMI-Audio _OSI string

This string was introduced because drivers for NVIDIA hardware
didn't handle HDMI properly.  This was fixed by commit b516ea586d71 ("PCI:
Enable NVIDIA HDA controllers"). So vendors shouldn't be using this
string to modify ASL anymore.

Suggested-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
Reviewed-by: Lyude Paul <lyude@...hat.com>
Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
 drivers/acpi/osi.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/acpi/osi.c b/drivers/acpi/osi.c
index c2f6b2f553d9..0d635eec87c4 100644
--- a/drivers/acpi/osi.c
+++ b/drivers/acpi/osi.c
@@ -44,14 +44,6 @@ osi_setup_entries[OSI_STRING_ENTRIES_MAX] __initdata = {
 	{"Processor Device", true},
 	{"3.0 _SCP Extensions", true},
 	{"Processor Aggregator Device", true},
-	/*
-	 * Linux-Lenovo-NV-HDMI-Audio is used by BIOS to power on NVidia's HDMI
-	 * audio device which is turned off for power-saving in Windows OS.
-	 * This power management feature observed on some Lenovo Thinkpad
-	 * systems which will not be able to output audio via HDMI without
-	 * a BIOS workaround.
-	 */
-	{"Linux-Lenovo-NV-HDMI-Audio", true},
 	/*
 	 * Linux-HPI-Hybrid-Graphics is used by BIOS to enable dGPU to
 	 * output video directly to external monitors on HP Inc. mobile
-- 
2.34.1