ide: merge ide_hwgroup_t with ide_hwif_t (v2)

* Merge ide_hwgroup_t with ide_hwif_t.

* Cleanup init_irq() accordingly, then remove no longer needed
  ide_remove_port_from_hwgroup() and ide_ports[].

* Remove now unused HWGROUP() macro.

While at it:

* ide_dump_ata_error() fixups

v2:
* Fix ->quirk_list check in do_ide_request()
  (s/hwif->cur_dev/prev_port->cur_dev).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 32 insertions, 37 deletions

diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index ad8bd6539283..b92304d0e79a 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -822,25 +822,25 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
 static void __ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
 		      unsigned int timeout, ide_expiry_t *expiry)
 {
-	ide_hwgroup_t *hwgroup = HWGROUP(drive);
-
-	BUG_ON(hwgroup->handler);
-	hwgroup->handler	= handler;
-	hwgroup->expiry		= expiry;
-	hwgroup->timer.expires	= jiffies + timeout;
-	hwgroup->req_gen_timer	= hwgroup->req_gen;
-	add_timer(&hwgroup->timer);
+	ide_hwif_t *hwif = drive->hwif;
+
+	BUG_ON(hwif->handler);
+	hwif->handler		= handler;
+	hwif->expiry		= expiry;
+	hwif->timer.expires	= jiffies + timeout;
+	hwif->req_gen_timer	= hwif->req_gen;
+	add_timer(&hwif->timer);
 }
 
 void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
 		      unsigned int timeout, ide_expiry_t *expiry)
 {
-	ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
+	ide_hwif_t *hwif = drive->hwif;
 	unsigned long flags;
 
-	spin_lock_irqsave(&hwgroup->lock, flags);
+	spin_lock_irqsave(&hwif->lock, flags);
 	__ide_set_handler(drive, handler, timeout, expiry);
-	spin_unlock_irqrestore(&hwgroup->lock, flags);
+	spin_unlock_irqrestore(&hwif->lock, flags);
 }
 
 EXPORT_SYMBOL(ide_set_handler);
@@ -863,10 +863,9 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
 			 unsigned timeout, ide_expiry_t *expiry)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	ide_hwgroup_t *hwgroup = hwif->hwgroup;
 	unsigned long flags;
 
-	spin_lock_irqsave(&hwgroup->lock, flags);
+	spin_lock_irqsave(&hwif->lock, flags);
 	__ide_set_handler(drive, handler, timeout, expiry);
 	hwif->tp_ops->exec_command(hwif, cmd);
 	/*
@@ -876,26 +875,25 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
 	 * FIXME: we could skip this delay with care on non shared devices
 	 */
 	ndelay(400);
-	spin_unlock_irqrestore(&hwgroup->lock, flags);
+	spin_unlock_irqrestore(&hwif->lock, flags);
 }
 EXPORT_SYMBOL(ide_execute_command);
 
 void ide_execute_pkt_cmd(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	ide_hwgroup_t *hwgroup = hwif->hwgroup;
 	unsigned long flags;
 
-	spin_lock_irqsave(&hwgroup->lock, flags);
+	spin_lock_irqsave(&hwif->lock, flags);
 	hwif->tp_ops->exec_command(hwif, ATA_CMD_PACKET);
 	ndelay(400);
-	spin_unlock_irqrestore(&hwgroup->lock, flags);
+	spin_unlock_irqrestore(&hwif->lock, flags);
 }
 EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);
 
 static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
 {
-	struct request *rq = drive->hwif->hwgroup->rq;
+	struct request *rq = drive->hwif->rq;
 
 	if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
 		ide_end_request(drive, err ? err : 1, 0);
@@ -913,7 +911,6 @@ static ide_startstop_t do_reset1 (ide_drive_t *, int);
 static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	ide_hwgroup_t *hwgroup = hwif->hwgroup;
 	u8 stat;
 
 	SELECT_DRIVE(drive);
@@ -923,20 +920,20 @@ static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive)
 	if (OK_STAT(stat, 0, ATA_BUSY))
 		printk("%s: ATAPI reset complete\n", drive->name);
 	else {
-		if (time_before(jiffies, hwgroup->poll_timeout)) {
+		if (time_before(jiffies, hwif->poll_timeout)) {
 			ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
 			/* continue polling */
 			return ide_started;
 		}
 		/* end of polling */
-		hwgroup->polling = 0;
+		hwif->polling = 0;
 		printk("%s: ATAPI reset timed-out, status=0x%02x\n",
 				drive->name, stat);
 		/* do it the old fashioned way */
 		return do_reset1(drive, 1);
 	}
 	/* done polling */
-	hwgroup->polling = 0;
+	hwif->polling = 0;
 	ide_complete_drive_reset(drive, 0);
 	return ide_stopped;
 }
@@ -968,7 +965,6 @@ static void ide_reset_report_error(ide_hwif_t *hwif, u8 err)
  */
 static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
 {
-	ide_hwgroup_t *hwgroup	= HWGROUP(drive);
 	ide_hwif_t *hwif	= HWIF(drive);
 	const struct ide_port_ops *port_ops = hwif->port_ops;
 	u8 tmp;
@@ -986,7 +982,7 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
 	tmp = hwif->tp_ops->read_status(hwif);
 
 	if (!OK_STAT(tmp, 0, ATA_BUSY)) {
-		if (time_before(jiffies, hwgroup->poll_timeout)) {
+		if (time_before(jiffies, hwif->poll_timeout)) {
 			ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
 			/* continue polling */
 			return ide_started;
@@ -1007,7 +1003,7 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
 		}
 	}
 out:
-	hwgroup->polling = 0;	/* done polling */
+	hwif->polling = 0;	/* done polling */
 	ide_complete_drive_reset(drive, err);
 	return ide_stopped;
 }
@@ -1081,7 +1077,6 @@ static void pre_reset(ide_drive_t *drive)
 static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	ide_hwgroup_t *hwgroup = hwif->hwgroup;
 	struct ide_io_ports *io_ports = &hwif->io_ports;
 	const struct ide_tp_ops *tp_ops = hwif->tp_ops;
 	const struct ide_port_ops *port_ops;
@@ -1089,10 +1084,10 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 	unsigned int unit;
 	DEFINE_WAIT(wait);
 
-	spin_lock_irqsave(&hwgroup->lock, flags);
+	spin_lock_irqsave(&hwif->lock, flags);
 
 	/* We must not reset with running handlers */
-	BUG_ON(hwgroup->handler != NULL);
+	BUG_ON(hwif->handler != NULL);
 
 	/* For an ATAPI device, first try an ATAPI SRST. */
 	if (drive->media != ide_disk && !do_not_try_atapi) {
@@ -1101,10 +1096,10 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 		udelay (20);
 		tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
 		ndelay(400);
-		hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
-		hwgroup->polling = 1;
+		hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
+		hwif->polling = 1;
 		__ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
-		spin_unlock_irqrestore(&hwgroup->lock, flags);
+		spin_unlock_irqrestore(&hwif->lock, flags);
 		return ide_started;
 	}
 
@@ -1127,9 +1122,9 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 		if (time_before_eq(timeout, now))
 			break;
 
-		spin_unlock_irqrestore(&hwgroup->lock, flags);
+		spin_unlock_irqrestore(&hwif->lock, flags);
 		timeout = schedule_timeout_uninterruptible(timeout - now);
-		spin_lock_irqsave(&hwgroup->lock, flags);
+		spin_lock_irqsave(&hwif->lock, flags);
 	} while (timeout);
 	finish_wait(&ide_park_wq, &wait);
 
@@ -1141,7 +1136,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 		pre_reset(&hwif->drives[unit]);
 
 	if (io_ports->ctl_addr == 0) {
-		spin_unlock_irqrestore(&hwgroup->lock, flags);
+		spin_unlock_irqrestore(&hwif->lock, flags);
 		ide_complete_drive_reset(drive, -ENXIO);
 		return ide_stopped;
 	}
@@ -1164,8 +1159,8 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 	tp_ops->set_irq(hwif, drive->quirk_list == 2);
 	/* more than enough time */
 	udelay(10);
-	hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
-	hwgroup->polling = 1;
+	hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
+	hwif->polling = 1;
 	__ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
 
 	/*
@@ -1177,7 +1172,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 	if (port_ops && port_ops->resetproc)
 		port_ops->resetproc(drive);
 
-	spin_unlock_irqrestore(&hwgroup->lock, flags);
+	spin_unlock_irqrestore(&hwif->lock, flags);
 	return ide_started;
 }