libata: Grand renaming.

The biggest change is that ata_host_set is renamed to ata_host.

* ata_host_set			=> ata_host
* ata_probe_ent->host_flags	=> ata_probe_ent->port_flags
* ata_probe_ent->host_set_flags	=> ata_probe_ent->_host_flags
* ata_host_stats		=> ata_port_stats
* ata_port->host		=> ata_port->scsi_host
* ata_port->host_set		=> ata_port->host
* ata_port_info->host_flags	=> ata_port_info->flags
* ata_(.*)host_set(.*)\(\)	=> ata_\1host\2()

The leading underscore in ata_probe_ent->_host_flags is to avoid
reusing ->host_flags for different purpose.  Currently, the only user
of the field is libata-bmdma.c and probe_ent itself is scheduled to be
removed.

ata_port->host is reused for different purpose but this field is used
inside libata core proper and of different type.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/sata_svw.c b/drivers/ata/sata_svw.c
index baf259a..2a7e349 100644
--- a/drivers/ata/sata_svw.c
+++ b/drivers/ata/sata_svw.c
@@ -169,7 +169,7 @@
  *	@qc: Info associated with this ATA transaction.
  *
  *	LOCKING:
- *	spin_lock_irqsave(host_set lock)
+ *	spin_lock_irqsave(host lock)
  */
 
 static void k2_bmdma_setup_mmio (struct ata_queued_cmd *qc)
@@ -199,7 +199,7 @@
  *	@qc: Info associated with this ATA transaction.
  *
  *	LOCKING:
- *	spin_lock_irqsave(host_set lock)
+ *	spin_lock_irqsave(host lock)
  */
 
 static void k2_bmdma_start_mmio (struct ata_queued_cmd *qc)
@@ -261,12 +261,12 @@
 		return 0;
 
 	/* Find the OF node for the PCI device proper */
-	np = pci_device_to_OF_node(to_pci_dev(ap->host_set->dev));
+	np = pci_device_to_OF_node(to_pci_dev(ap->host->dev));
 	if (np == NULL)
 		return 0;
 
 	/* Match it to a port node */
-	index = (ap == ap->host_set->ports[0]) ? 0 : 1;
+	index = (ap == ap->host->ports[0]) ? 0 : 1;
 	for (np = np->child; np != NULL; np = np->sibling) {
 		u32 *reg = (u32 *)get_property(np, "reg", NULL);
 		if (!reg)
@@ -423,7 +423,7 @@
 	writel(0x0, mmio_base + K2_SATA_SIM_OFFSET);
 
 	probe_ent->sht = &k2_sata_sht;
-	probe_ent->host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
+	probe_ent->port_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
 				ATA_FLAG_MMIO;
 	probe_ent->port_ops = &k2_sata_ops;
 	probe_ent->n_ports = 4;