[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>

diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 0f5e3ca..2288b55 100644 (file)
--- 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);
 }