[SCSI] correct transport class abstraction to work outside SCSI

I recently tried to construct a totally generic transport class and
found there were certain features missing from the current abstract
transport class.  Most notable is that you have to hang the data on the
class_device but most of the API is framed in terms of the generic
device, not the class_device.

These changes are two fold

- Provide the class_device to all of the setup and configure APIs
- Provide and extra API to take the device and the attribute class and
  return the corresponding class_device

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 35d1c1e8e345..96243c7fe110 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -252,7 +252,8 @@ struct fc_internal {
 
 #define to_fc_internal(tmpl)    container_of(tmpl, struct fc_internal, t)
 
-static int fc_target_setup(struct device *dev)
+static int fc_target_setup(struct transport_container *tc, struct device *dev,
+                           struct class_device *cdev)
 {
         struct scsi_target *starget = to_scsi_target(dev);
         struct fc_rport *rport = starget_to_rport(starget);
@@ -281,7 +282,8 @@ static DECLARE_TRANSPORT_CLASS(fc_transport_class,
                                NULL,
                                NULL);
 
-static int fc_host_setup(struct device *dev)
+static int fc_host_setup(struct transport_container *tc, struct device *dev,
+                         struct class_device *cdev)
 {
         struct Scsi_Host *shost = dev_to_shost(dev);