libata: cleanup ata_sff_interrupt()
host->ports[i] is never NULL if i < host->n_ports and non-NULL return
from ata_qc_from_tag() guarantees that the returned qc is active.
Drop unnecessary tests.
Superflous () dropped as suggested by Sergei.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 730ef3c..c62ed13 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -1770,18 +1770,15 @@
spin_lock_irqsave(&host->lock, flags);
for (i = 0; i < host->n_ports; i++) {
- struct ata_port *ap;
+ struct ata_port *ap = host->ports[i];
+ struct ata_queued_cmd *qc;
- ap = host->ports[i];
- if (ap &&
- !(ap->flags & ATA_FLAG_DISABLED)) {
- struct ata_queued_cmd *qc;
+ if (unlikely(ap->flags & ATA_FLAG_DISABLED))
+ continue;
- qc = ata_qc_from_tag(ap, ap->link.active_tag);
- if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING)) &&
- (qc->flags & ATA_QCFLAG_ACTIVE))
- handled |= ata_sff_host_intr(ap, qc);
- }
+ qc = ata_qc_from_tag(ap, ap->link.active_tag);
+ if (qc && !(qc->tf.flags & ATA_TFLAG_POLLING))
+ handled |= ata_sff_host_intr(ap, qc);
}
spin_unlock_irqrestore(&host->lock, flags);