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-rw-r--r--drivers/ata/libata-acpi.c4
-rw-r--r--include/linux/libata.h1
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index 5b0ba3f..ef01ac0 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -76,6 +76,9 @@ acpi_handle ata_dev_acpi_handle(struct ata_device *dev)
acpi_integer adr;
struct ata_port *ap = dev->link->ap;
+ if (dev->flags & ATA_DFLAG_ACPI_DISABLED)
+ return NULL;
+
if (ap->flags & ATA_FLAG_ACPI_SATA) {
if (!sata_pmp_attached(ap))
adr = SATA_ADR(ap->port_no, NO_PORT_MULT);
@@ -945,6 +948,7 @@ int ata_acpi_on_devcfg(struct ata_device *dev)
return rc;
}
+ dev->flags |= ATA_DFLAG_ACPI_DISABLED;
ata_dev_warn(dev, "ACPI: failed the second time, disabled\n");
/* We can safely continue if no _GTF command has been executed
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 77eeeda..e931c9a 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -163,6 +163,7 @@ enum {
ATA_DFLAG_DA = (1 << 26), /* device supports Device Attention */
ATA_DFLAG_DEVSLP = (1 << 27), /* device supports Device Sleep */
+ ATA_DFLAG_ACPI_DISABLED = (1 << 28), /* ACPI for the device is disabled */
ATA_DEV_UNKNOWN = 0, /* unknown device */
ATA_DEV_ATA = 1, /* ATA device */