ata: make use of ata_port_is_frozen() helper

Clean up the code by making use of the newly introduced
ata_port_is_frozen() helper function.

Signed-off-by: Niklas Cassel <[e-mail]>
Signed-off-by: Damien Le Moal <[e-mail]>

drivers/ata/libahci.c

···
 {
 	struct ahci_host_priv *hpriv = ap->host->private_data;
 
-	if (!(ap->pflags & ATA_PFLAG_FROZEN)) {
+	if (!ata_port_is_frozen(ap)) {
 		/* restart engine */
 		hpriv->stop_engine(ap);
 		hpriv->start_engine(ap);
···
 	 * Note that during initialization, the port is marked as
 	 * frozen since the irq handler is not yet registered.
 	 */
-	if (!(ap->pflags & ATA_PFLAG_FROZEN))
+	if (!ata_port_is_frozen(ap))
 		writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK);
 }
 
···
 	pp->intr_mask &= ~PORT_IRQ_BAD_PMP;
 
 	/* see comment above in ahci_pmp_attach() */
-	if (!(ap->pflags & ATA_PFLAG_FROZEN))
+	if (!ata_port_is_frozen(ap))
 		writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK);
 }
 

drivers/ata/libata-acpi.c

···
 
  acpi_err:
 	/* ignore evaluation failure if we can continue safely */
-	if (rc == -EINVAL && !nr_executed && !(ap->pflags & ATA_PFLAG_FROZEN))
+	if (rc == -EINVAL && !nr_executed && !ata_port_is_frozen(ap))
 		return 0;
 
 	/* fail and let EH retry once more for unknown IO errors */
···
 	/* We can safely continue if no _GTF command has been executed
 	 * and port is not frozen.
 	 */
-	if (!nr_executed && !(ap->pflags & ATA_PFLAG_FROZEN))
+	if (!nr_executed && !ata_port_is_frozen(ap))
 		return 0;
 
 	return rc;

drivers/ata/libata-core.c

···
 	spin_lock_irqsave(ap->lock, flags);
 
 	/* no internal command while frozen */
-	if (ap->pflags & ATA_PFLAG_FROZEN) {
+	if (ata_port_is_frozen(ap)) {
 		spin_unlock_irqrestore(ap->lock, flags);
 		return AC_ERR_SYSTEM;
 	}
···
 			return;
 		}
 
-		WARN_ON_ONCE(ap->pflags & ATA_PFLAG_FROZEN);
+		WARN_ON_ONCE(ata_port_is_frozen(ap));
 
 		/* read result TF if requested */
 		if (qc->flags & ATA_QCFLAG_RESULT_TF)

drivers/ata/libata-eh.c

···
 	struct ata_taskfile tf;
 	unsigned int err_mask;
 
-	if (qc->ap->pflags & ATA_PFLAG_FROZEN) {
+	if (ata_port_is_frozen(qc->ap)) {
 		ata_dev_warn(dev, "sense data available but port frozen\n");
 		return;
 	}
···
 		break;
 
 	case ATA_DEV_ATAPI:
-		if (!(qc->ap->pflags & ATA_PFLAG_FROZEN)) {
+		if (!ata_port_is_frozen(qc->ap)) {
 			tmp = atapi_eh_request_sense(qc->dev,
 						qc->scsicmd->sense_buffer,
 						qc->result_tf.error >> 4);
···
 		ehc->i.flags |= ATA_EHI_QUIET;
 
 	/* enforce default EH actions */
-	if (ap->pflags & ATA_PFLAG_FROZEN ||
+	if (ata_port_is_frozen(ap) ||
 	    all_err_mask & (AC_ERR_HSM | AC_ERR_TIMEOUT))
 		ehc->i.action |= ATA_EH_RESET;
 	else if (((eflags & ATA_EFLAG_IS_IO) && all_err_mask) ||
···
 		return;
 
 	frozen = "";
-	if (ap->pflags & ATA_PFLAG_FROZEN)
+	if (ata_port_is_frozen(ap))
 		frozen = " frozen";
 
 	if (ap->eh_tries < ATA_EH_MAX_TRIES)
···
 		if (reset && !(ehc->i.action & ATA_EH_RESET)) {
 			ata_for_each_dev(dev, link, ALL)
 				classes[dev->devno] = ATA_DEV_NONE;
-			if ((ap->pflags & ATA_PFLAG_FROZEN) &&
-			    ata_is_host_link(link))
+			if (ata_port_is_frozen(ap) && ata_is_host_link(link))
 				ata_eh_thaw_port(ap);
 			rc = 0;
 			goto out;
···
 	ap->pflags &= ~ATA_PFLAG_EH_PENDING;
 	spin_unlock_irqrestore(link->ap->lock, flags);
 
-	if (ap->pflags & ATA_PFLAG_FROZEN)
+	if (ata_port_is_frozen(ap))
 		ata_eh_thaw_port(ap);
 
 	/*
···
 		if (err_mask & AC_ERR_DEV) {
 			qc->err_mask |= AC_ERR_DEV;
 			qc->result_tf = tf;
-			if (!(ap->pflags & ATA_PFLAG_FROZEN))
+			if (!ata_port_is_frozen(ap))
 				rc = 0;
 		}
 	}
···
 		return 1;
 
 	/* thaw frozen port and recover failed devices */
-	if ((ap->pflags & ATA_PFLAG_FROZEN) || ata_link_nr_enabled(link))
+	if (ata_port_is_frozen(ap) || ata_link_nr_enabled(link))
 		return 0;
 
 	/* reset at least once if reset is requested */
···
 		if (dev)
 			ata_eh_handle_dev_fail(dev, rc);
 
-		if (ap->pflags & ATA_PFLAG_FROZEN) {
+		if (ata_port_is_frozen(ap)) {
 			/* PMP reset requires working host port.
 			 * Can't retry if it's frozen.
 			 */
···
 	ap->pflags &= ~ATA_PFLAG_PM_PENDING;
 	if (rc == 0)
 		ap->pflags |= ATA_PFLAG_SUSPENDED;
-	else if (ap->pflags & ATA_PFLAG_FROZEN)
+	else if (ata_port_is_frozen(ap))
 		ata_port_schedule_eh(ap);
 
 	spin_unlock_irqrestore(ap->lock, flags);

drivers/ata/libata-sata.c

···
 	int tag, rc;
 
 	/* if frozen, we can't do much */
-	if (ap->pflags & ATA_PFLAG_FROZEN)
+	if (ata_port_is_frozen(ap))
 		return;
 
 	/* is it NCQ device error? */

drivers/ata/libata-scsi.c

···
 	struct ata_queued_cmd *qc;
 	int tag;
 
-	if (unlikely(ap->pflags & ATA_PFLAG_FROZEN))
+	if (unlikely(ata_port_is_frozen(ap)))
 		goto fail;
 
 	if (ap->flags & ATA_FLAG_SAS_HOST) {

drivers/ata/sata_nv.c

···
 	if (!fis)
 		return;
 
-	if (ap->pflags & ATA_PFLAG_FROZEN)
+	if (ata_port_is_frozen(ap))
 		return;
 
 	if (fis & NV_SWNCQ_IRQ_HOTPLUG) {

drivers/ata/sata_promise.c

···
 
 static void pdc_error_handler(struct ata_port *ap)
 {
-	if (!(ap->pflags & ATA_PFLAG_FROZEN))
+	if (!ata_port_is_frozen(ap))
 		pdc_reset_port(ap);
 
 	ata_sff_error_handler(ap);

drivers/ata/sata_sx4.c

···
 
 static void pdc_error_handler(struct ata_port *ap)
 {
-	if (!(ap->pflags & ATA_PFLAG_FROZEN))
+	if (!ata_port_is_frozen(ap))
 		pdc_reset_port(ap);
 
 	ata_sff_error_handler(ap);