[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>

1 files changed, 10 insertions, 87 deletions

diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 0f5e3caf85d7..2288b55d916f 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);
 }