[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>

1 files changed, 9 insertions, 8 deletions

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index d94b8a02c34..090abe44382 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1224,7 +1224,7 @@ unsigned int ata_pio_need_iordy(const struct ata_device *adev)
  *	ata_dev_read_id - Read ID data from the specified device
  *	@dev: target device
  *	@p_class: pointer to class of the target device (may be changed)
- *	@post_reset: is this read ID post-reset?
+ *	@flags: ATA_READID_* flags
  *	@id: buffer to read IDENTIFY data into
  *
  *	Read ID data from the specified device.  ATA_CMD_ID_ATA is
@@ -1239,7 +1239,7 @@ unsigned int ata_pio_need_iordy(const struct ata_device *adev)
  *	0 on success, -errno otherwise.
  */
 int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
-		    int post_reset, u16 *id)
+		    unsigned int flags, u16 *id)
 {
 	struct ata_port *ap = dev->ap;
 	unsigned int class = *p_class;
@@ -1294,7 +1294,7 @@ int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
 			goto err_out;
 	}
 
-	if (post_reset && class == ATA_DEV_ATA) {
+	if ((flags & ATA_READID_POSTRESET) && class == ATA_DEV_ATA) {
 		/*
 		 * The exact sequence expected by certain pre-ATA4 drives is:
 		 * SRST RESET
@@ -1314,7 +1314,7 @@ int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
 			/* current CHS translation info (id[53-58]) might be
 			 * changed. reread the identify device info.
 			 */
-			post_reset = 0;
+			flags &= ~ATA_READID_POSTRESET;
 			goto retry;
 		}
 	}
@@ -1643,7 +1643,8 @@ int ata_bus_probe(struct ata_port *ap)
 		if (!ata_dev_enabled(dev))
 			continue;
 
-		rc = ata_dev_read_id(dev, &dev->class, 1, dev->id);
+		rc = ata_dev_read_id(dev, &dev->class, ATA_READID_POSTRESET,
+				     dev->id);
 		if (rc)
 			goto fail;
 
@@ -3023,7 +3024,7 @@ static int ata_dev_same_device(struct ata_device *dev, unsigned int new_class,
 /**
  *	ata_dev_revalidate - Revalidate ATA device
  *	@dev: device to revalidate
- *	@post_reset: is this revalidation after reset?
+ *	@readid_flags: read ID flags
  *
  *	Re-read IDENTIFY page and make sure @dev is still attached to
  *	the port.
@@ -3034,7 +3035,7 @@ static int ata_dev_same_device(struct ata_device *dev, unsigned int new_class,
  *	RETURNS:
  *	0 on success, negative errno otherwise
  */
-int ata_dev_revalidate(struct ata_device *dev, int post_reset)
+int ata_dev_revalidate(struct ata_device *dev, unsigned int readid_flags)
 {
 	unsigned int class = dev->class;
 	u16 *id = (void *)dev->ap->sector_buf;
@@ -3046,7 +3047,7 @@ int ata_dev_revalidate(struct ata_device *dev, int post_reset)
 	}
 
 	/* read ID data */
-	rc = ata_dev_read_id(dev, &class, post_reset, id);
+	rc = ata_dev_read_id(dev, &class, readid_flags, id);
 	if (rc)
 		goto fail;