diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 5b0ba3f20edcfd4603538ce7505d69dd93f8bb29..ef01ac07502e54625cbf02b7ae7ff11322f5c245 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 77eeeda2b6e2cbcab6cda30aaa5269885344150c..e931c9ad10786ffa4ee8de90133e67fc206f36ca 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 */