diff options
| -rw-r--r-- | drivers/scsi/ahci.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c index d6894bd6798..35487e30b0f 100644 --- a/drivers/scsi/ahci.c +++ b/drivers/scsi/ahci.c @@ -883,7 +883,18 @@ static void ahci_host_intr(struct ata_port *ap) } } - /* spurious interrupt */ + /* hmmm... a spurious interupt */ + + /* ignore interim PIO setup fis interrupts */ + if (ata_tag_valid(ap->active_tag)) { + struct ata_queued_cmd *qc = + ata_qc_from_tag(ap, ap->active_tag); + + if (qc && qc->tf.protocol == ATA_PROT_PIO && + (status & PORT_IRQ_PIOS_FIS)) + return; + } + if (ata_ratelimit()) ata_port_printk(ap, KERN_INFO, "spurious interrupt " "(irq_stat 0x%x active_tag %d)\n", |