asgardius/android_kernel_motorola_sm6225
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[SPARC64]: Simplify VDC device probing.

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

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2007-07-17 21:46:00 -07:00
parent 920c3ed741
commit 80dc35dfb9
1 changed files with 10 additions and 87 deletions
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97
drivers/block/sunvdc.c
View file

@ -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 @@ out_err:
static void __exit vdc_exit(void)
{
vio_unregister_driver(&vdc_port_driver);
vio_unregister_driver(&vdc_driver);
unregister_blkdev(vdc_major, VDCBLK_NAME);
}