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authorDavid S. Miller <davem@sunset.davemloft.net>2007-07-17 21:46:00 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-07-18 01:19:55 -0700
commit80dc35dfb98d2fbf3af0b829e3bf6e6a0f631cda (patch)
tree7815d36179cfd32cfb929c4c9c75b82ef3743df1 /drivers/block/sunvdc.c
parent920c3ed741340a88f2042ab0c44a25b8c743a379 (diff)
downloadop-kernel-dev-80dc35dfb98d2fbf3af0b829e3bf6e6a0f631cda.zip
op-kernel-dev-80dc35dfb98d2fbf3af0b829e3bf6e6a0f631cda.tar.gz
[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: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/block/sunvdc.c')
-rw-r--r--drivers/block/sunvdc.c97
1 files changed, 10 insertions, 87 deletions
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 0f5e3ca..2288b55 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -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);
}
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