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[PATCH] ahci: skip protocol test altogether in spurious interrupt code 

Skip protocol test altogether in spurious interrupt code. If PIOS is received
when it shouldn't, ahci will raise protocol violation.

Signed-off-by: Unicorn Chang <uchang@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Unicorn Chang 2006-08-01 12:18:07 +08:00 committed by Jeff Garzik
parent fd60ae404f
commit f1d39b291e
1 changed files with 2 additions and 8 deletions
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10
drivers/scsi/ahci.c
View File

@ -940,14 +940,8 @@ static void ahci_host_intr(struct ata_port *ap)
return; return;
/* ignore interim PIO setup fis interrupts */ /* ignore interim PIO setup fis interrupts */
if (ata_tag_valid(ap->active_tag)) { if (ata_tag_valid(ap->active_tag) && (status & PORT_IRQ_PIOS_FIS))
struct ata_queued_cmd *qc = return;
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()) if (ata_ratelimit())
ata_port_printk(ap, KERN_INFO, "spurious interrupt " ata_port_printk(ap, KERN_INFO, "spurious interrupt "