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Commit 80dc35df authored by David S. Miller's avatar David S. Miller
Browse files

[SPARC64]: Simplify VDC device probing. 



We just need to match on the vdc-port nodes, the parent
is really not interesting at all.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 920c3ed7

drivers/block/sunvdc.c

+10 −87
Original line number Diff line number Diff line
@@ -45,8 +45,6 @@ struct vdc_req_entry { 
struct vdc_port {

	struct vio_driver_state	vio;



	struct vdc		*vp;



	struct gendisk		*disk;



	struct vdc_completion	*cmp;
@@ -72,8 +70,6 @@ struct vdc_port { 


	struct vio_disk_geom	geom;

	struct vio_disk_vtoc	label;



	struct list_head	list;

};



static inline struct vdc_port *to_vdc_port(struct vio_driver_state *vio)
@@ -81,15 +77,6 @@ static inline struct vdc_port *to_vdc_port(struct vio_driver_state *vio) 
	return container_of(vio, struct vdc_port, vio);

}



struct vdc {

	/* Protects prot_list.  */

	spinlock_t		lock;



	struct vio_dev		*dev;



	struct list_head	port_list;

};



/* Ordered from largest major to lowest */

static struct vio_version vdc_versions[] = {

	{ .major = 1, .minor = 0 },
@@ -747,21 +734,23 @@ static struct vio_driver_ops vdc_vio_ops = { 
	.handshake_complete	= vdc_handshake_complete,

};



static void print_version(void)

{

	static int version_printed;



	if (version_printed++ == 0)

		printk(KERN_INFO "%s", version);

}



static int __devinit vdc_port_probe(struct vio_dev *vdev,

				    const struct vio_device_id *id)

{

	struct mdesc_handle *hp;

	struct vdc_port *port;

	unsigned long flags;

	struct vdc *vp;

	const u64 *port_id;

	int err;



	vp = dev_get_drvdata(vdev->dev.parent);

	if (!vp) {

		printk(KERN_ERR PFX "Cannot find port parent vdc.\n");

		return -ENODEV;

	}

	print_version();



	hp = mdesc_grab();
@@ -783,7 +772,6 @@ static int __devinit vdc_port_probe(struct vio_dev *vdev, 
		goto err_out_release_mdesc;

	}



	port->vp = vp;

	port->dev_no = *port_id;



	if (port->dev_no >= 26)
@@ -818,12 +806,6 @@ static int __devinit vdc_port_probe(struct vio_dev *vdev, 
	if (err)

		goto err_out_free_tx_ring;



	INIT_LIST_HEAD(&port->list);



	spin_lock_irqsave(&vp->lock, flags);

	list_add(&port->list, &vp->port_list);

	spin_unlock_irqrestore(&vp->lock, flags);



	dev_set_drvdata(&vdev->dev, port);



	mdesc_release(hp);
@@ -879,58 +861,6 @@ static struct vio_driver vdc_port_driver = { 
	}

};



static int __devinit vdc_probe(struct vio_dev *vdev,

			       const struct vio_device_id *id)

{

	static int vdc_version_printed;

	struct vdc *vp;



	if (vdc_version_printed++ == 0)

		printk(KERN_INFO "%s", version);



	vp = kzalloc(sizeof(struct vdc), GFP_KERNEL);

	if (!vp)

		return -ENOMEM;



	spin_lock_init(&vp->lock);

	vp->dev = vdev;

	INIT_LIST_HEAD(&vp->port_list);



	dev_set_drvdata(&vdev->dev, vp);



	return 0;

}



static int vdc_remove(struct vio_dev *vdev)

{



	struct vdc *vp = dev_get_drvdata(&vdev->dev);



	if (vp) {

		kfree(vp);

		dev_set_drvdata(&vdev->dev, NULL);

	}

	return 0;

}



static struct vio_device_id vdc_match[] = {

	{

		.type = "block",

	},

	{},

};

MODULE_DEVICE_TABLE(vio, vdc_match);



static struct vio_driver vdc_driver = {

	.id_table	= vdc_match,

	.probe		= vdc_probe,

	.remove		= vdc_remove,

	.driver		= {

		.name	= "vdc",

		.owner	= THIS_MODULE,

	}

};



static int __init vdc_init(void)

{

	int err;
@@ -940,19 +870,13 @@ static int __init vdc_init(void) 
		goto out_err;



	vdc_major = err;

	err = vio_register_driver(&vdc_driver);

	if (err)

		goto out_unregister_blkdev;



	err = vio_register_driver(&vdc_port_driver);

	if (err)

		goto out_unregister_vdc;

		goto out_unregister_blkdev;



	return 0;



out_unregister_vdc:

	vio_unregister_driver(&vdc_driver);



out_unregister_blkdev:

	unregister_blkdev(vdc_major, VDCBLK_NAME);

	vdc_major = 0;
@@ -964,7 +888,6 @@ static int __init vdc_init(void) 
static void __exit vdc_exit(void)

{

	vio_unregister_driver(&vdc_port_driver);

	vio_unregister_driver(&vdc_driver);

	unregister_blkdev(vdc_major, VDCBLK_NAME);

}