[PATCH] libata: convert @post_reset to @flags in ata_dev_read_id()

Make ata_dev_read_id() take @flags instead of @post_reset.  Currently
there is only one flag defined - ATA_READID_POSTRESET, which is
equivalent to @post_reset.  This is preparation for polling presence
detection.

Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/ata/libata-eh.c

@@ -1634,11 +1634,14 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap,
 	DPRINTK("ENTER\n");
 
 	for (i = 0; i < ATA_MAX_DEVICES; i++) {
-		unsigned int action;
+		unsigned int action, readid_flags = 0;
 
 		dev = &ap->device[i];
 		action = ata_eh_dev_action(dev);
 
+		if (ehc->i.flags & ATA_EHI_DID_RESET)
+			readid_flags |= ATA_READID_POSTRESET;
+
 		if (action & ATA_EH_REVALIDATE && ata_dev_ready(dev)) {
 			if (ata_port_offline(ap)) {
 				rc = -EIO;
@@ -1646,8 +1649,7 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap,
 			}
 
 			ata_eh_about_to_do(ap, dev, ATA_EH_REVALIDATE);
-			rc = ata_dev_revalidate(dev,
-					ehc->i.flags & ATA_EHI_DID_RESET);
+			rc = ata_dev_revalidate(dev, readid_flags);
 			if (rc)
 				break;
 
@@ -1665,7 +1667,8 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap,
 			   ata_class_enabled(ehc->classes[dev->devno])) {
 			dev->class = ehc->classes[dev->devno];
 
-			rc = ata_dev_read_id(dev, &dev->class, 1, dev->id);
+			rc = ata_dev_read_id(dev, &dev->class, readid_flags,
+					     dev->id);
 			if (rc == 0) {
 				ehc->i.flags |= ATA_EHI_PRINTINFO;
 				rc = ata_dev_configure(dev);