[PATCH] libata-hp-prep: implement ata_dev_init()
Move initialization of struct ata_device into ata_dev_init() in
preparation for hotplug. This patch calls ata_dev_init() from
ata_host_init() and thus makes no functional difference.
Signed-off-by: Tejun Heo <htejun@gmail.com>
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 66df895..8fda822 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -5142,6 +5142,26 @@
}
/**
+ * ata_dev_init - Initialize an ata_device structure
+ * @dev: Device structure to initialize
+ *
+ * Initialize @dev in preparation for probing.
+ *
+ * LOCKING:
+ * Inherited from caller.
+ */
+void ata_dev_init(struct ata_device *dev)
+{
+ struct ata_port *ap = dev->ap;
+
+ memset((void *)dev, 0, sizeof(*dev));
+ dev->devno = dev - ap->device;
+ dev->pio_mask = UINT_MAX;
+ dev->mwdma_mask = UINT_MAX;
+ dev->udma_mask = UINT_MAX;
+}
+
+/**
* ata_host_init - Initialize an ata_port structure
* @ap: Structure to initialize
* @host: associated SCSI mid-layer structure
@@ -5155,7 +5175,6 @@
* LOCKING:
* Inherited from caller.
*/
-
static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
struct ata_host_set *host_set,
const struct ata_probe_ent *ent, unsigned int port_no)
@@ -5199,10 +5218,7 @@
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
dev->ap = ap;
- dev->devno = i;
- dev->pio_mask = UINT_MAX;
- dev->mwdma_mask = UINT_MAX;
- dev->udma_mask = UINT_MAX;
+ ata_dev_init(dev);
}
#ifdef ATA_IRQ_TRAP