[PATCH v3] ata: libata: disable LPM for WDC WD20EFAX-68FB5N0 hard drives

From: Mikko Juhani Korhonen
Date: Fri Apr 25 2025 - 15:34:04 EST


Make WDC WD20EFAX-68FB5N0 hard drives work again after regression in
6.9.0 when LPM was enabled, so disable it for this model.

Signed-off-by: Mikko Korhonen <mjkorhon@xxxxxxxxx>
---
drivers/ata/libata-core.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 773799cfd443..5c2f26945d61 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4239,6 +4239,11 @@ static const struct ata_dev_quirks_entry
__ata_dev_quirks[] = {
{ "WDC WD3000JD-*", NULL, ATA_QUIRK_WD_BROKEN_LPM },
{ "WDC WD3200JD-*", NULL, ATA_QUIRK_WD_BROKEN_LPM },

+ /*
+ * This specific WD SATA-3 model has problems with LPM.
+ */
+ { "WDC WD20EFAX-68FB5N0", NULL, ATA_QUIRK_NOLPM },
+
/*
* This sata dom device goes on a walkabout when the ATA_LOG_DIRECTORY
* log page is accessed. Ensure we never ask for this log page with

base-commit: 14a3cc755825ef7b34c986aa2786ea815023e9c5
--
2.47.2