[SCSI] bsg: separate bsg and SCSI (so SCSI can be modular)

This patch moves the bsg registration into SCSI so that bsg no longer
has a dependency on the scsi_interface_register API.

This can be viewed as a temporary expedient until we can get universal
bsg binding sorted out properly.  Also use the sdev bus_id as the
generic bsg name (to avoid clashes with the queue name).

Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 0 insertions, 30 deletions

diff --git a/block/bsg.c b/block/bsg.c
index baa04e7adf19..4e0be1b2e2a0 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -1009,29 +1009,6 @@ err:
 }
 EXPORT_SYMBOL_GPL(bsg_register_queue);
 
-static int bsg_add(struct class_device *cl_dev, struct class_interface *cl_intf)
-{
-        int ret;
-        struct scsi_device *sdp = to_scsi_device(cl_dev->dev);
-        struct request_queue *rq = sdp->request_queue;
-
-        if (rq->kobj.parent)
-                ret = bsg_register_queue(rq, kobject_name(rq->kobj.parent));
-        else
-                ret = bsg_register_queue(rq, kobject_name(&sdp->sdev_gendev.kobj));
-        return ret;
-}
-
-static void bsg_remove(struct class_device *cl_dev, struct class_interface *cl_intf)
-{
-        bsg_unregister_queue(to_scsi_device(cl_dev->dev)->request_queue);
-}
-
-static struct class_interface bsg_intf = {
-        .add    = bsg_add,
-        .remove = bsg_remove,
-};
-
 static struct cdev bsg_cdev = {
         .kobj   = {.name = "bsg", },
         .owner  = THIS_MODULE,
@@ -1069,16 +1046,9 @@ static int __init bsg_init(void)
         if (ret)
                 goto unregister_chrdev;
 
-        ret = scsi_register_interface(&bsg_intf);
-        if (ret)
-                goto remove_cdev;
-
         printk(KERN_INFO BSG_DESCRIPTION " version " BSG_VERSION
                " loaded (major %d)\n", bsg_major);
         return 0;
-remove_cdev:
-        printk(KERN_ERR "bsg: failed register scsi interface %d\n", ret);
-        cdev_del(&bsg_cdev);
 unregister_chrdev:
         unregister_chrdev_region(MKDEV(bsg_major, 0), BSG_MAX_DEVS);
 destroy_bsg_class: