linux-kernel - [PATCH v6 5/7] ptp: ptp_vmclock: add 'VMCLOCK' to ACPI device match

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: <20260121143402.3092-6-itazur@amazon.com>
Date: Wed, 21 Jan 2026 14:33:42 +0000
From: Takahiro Itazuri <itazur@...zon.com>
To: <robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
	<richardcochran@...il.com>, <dwmw2@...radead.org>, <andrew+netdev@...n.ch>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>
CC: <devicetree@...r.kernel.org>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Babis Chalios <mail@...alios.io>, "Alexander
 Graf" <graf@...zon.de>, <mzxreary@...inter.de>, Marco Cali
	<xmarcalx@...zon.co.uk>, David Woodhouse <dwmw@...zon.co.uk>, "Takahiro
 Itazuri" <itazur@...zon.co.uk>
Subject: [PATCH v6 5/7] ptp: ptp_vmclock: add 'VMCLOCK' to ACPI device match

From: David Woodhouse <dwmw@...zon.co.uk>

As we finalised the spec, we spotted that vmgenid actually says that the
_HID is supposed to be hypervisor-specific. Although in the 13 years
since the original vmgenid doc was published, nobody seems to have cared
about using _HID to distinguish between implementations on different
hypervisors, and we only ever use the _CID.

For consistency, match the _CID of "VMCLOCK" too.

Signed-off-by: David Woodhouse <dwmw@...zon.co.uk>
Signed-off-by: Babis Chalios <bchalios@...zon.es>
---
 drivers/ptp/ptp_vmclock.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ptp/ptp_vmclock.c b/drivers/ptp/ptp_vmclock.c
index 8605e441fad7..b5e264264051 100644
--- a/drivers/ptp/ptp_vmclock.c
+++ b/drivers/ptp/ptp_vmclock.c
@@ -749,6 +749,7 @@ static int vmclock_probe(struct platform_device *pdev)
 
 static const struct acpi_device_id vmclock_acpi_ids[] = {
 	{ "AMZNC10C", 0 },
+	{ "VMCLOCK", 0 },
 	{}
 };
 MODULE_DEVICE_TABLE(acpi, vmclock_acpi_ids);
-- 
2.47.3