[PATCH] nvme-pci: add NVME_QUIRK_NO_SECONDARY_TEMP_THRESH for WD SN740

[Robson Cassiano]

The WD SN740 (15b7:5017) reports two secondary temperature sensors in
the SMART/Health log but returns the 0 and 0xffff (Kelvin) sentinels
for their temperature thresholds. nvme-hwmon exposes those as
temp2_min/max and temp3_min/max, producing -273.15 C and 65261.85 C in
sysfs.

Mark the controller with NVME_QUIRK_NO_SECONDARY_TEMP_THRESH so only
the sensor inputs are exposed.

Assisted-by: LLM
Signed-off-by: Robson Cassiano <linux at robsoncassiano.software>
---
Tested on the affected system, WD SN740 512 GB, firmware 73100004:

  # lspci -nn -s 01:00.0
  01:00.0 Non-Volatile memory controller [0108]: Sandisk Corp WD SN560/SN740/SN770/SN5000 NVMe SSD [15b7:5017] (rev 01)

Before, on 7.2.8:

  temp2_label    Sensor 1
  temp2_input    53850
  temp2_min      -273150
  temp2_max      65261850
  temp3_label    Sensor 2
  temp3_input    38850
  temp3_min      -273150
  temp3_max      65261850

After, on 7.3.0 with this patch:

  temp1_label    Composite
  temp1_input    45850
  temp1_min      -40150
  temp1_max      83850
  temp1_crit     87850
  temp2_label    Sensor 1
  temp2_input    59850
  temp3_label    Sensor 2
  temp3_input    45850

temp1_* are the Composite thresholds and stay exposed; the quirk only
suppresses the secondary sensor thresholds.

The quirk also covers the other models sharing 15b7:5017 (SN560, SN770,
SN5000); only the SN740 was tested.

OEM systems: Dell OptiPlex 3000, Lenovo IdeaCentre AIO 5 and Samsung
NP750QFG-KS1BR (the test system).

 drivers/nvme/host/pci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 77317e5..4f1f10b 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -4170,6 +4170,8 @@ static const struct pci_device_id nvme_id_table[] = {
 	{ PCI_DEVICE(0x15b7, 0x5009),   /* Sandisk SN550 */
 		.driver_data = NVME_QUIRK_BROKEN_MSI |
 				NVME_QUIRK_NO_DEEPEST_PS },
+	{ PCI_DEVICE(0x15b7, 0x5017),   /* Sandisk SN560/SN740/SN770/SN5000 */
+		.driver_data = NVME_QUIRK_NO_SECONDARY_TEMP_THRESH, },
 	{ PCI_DEVICE(0x1987, 0x5012),	/* Phison E12 */
 		.driver_data = NVME_QUIRK_BOGUS_NID, },
 	{ PCI_DEVICE(0x1987, 0x5016),	/* Phison E16 */
-- 
2.56.0


base-commit: c03c1a14507dfaf8b856c2608f9ac216021fc222