[SCSI] scsi_dh: code cleanup and remove the references to scsi_dev_info

All the handlers have now implemented the match function so We don't need to
use scsi_dev_info any more for matching purposes.

Signed-off-by: Babu Moger <babu.moger@netapp.com>
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 0 insertions, 58 deletions

diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c
index 23149b9e297c..48e46f5b77cc 100644
--- a/drivers/scsi/device_handler/scsi_dh.c
+++ b/drivers/scsi/device_handler/scsi_dh.c
@@ -28,7 +28,6 @@
 
 static DEFINE_SPINLOCK(list_lock);
 static LIST_HEAD(scsi_dh_list);
-static int scsi_dh_list_idx = 1;
 
 static struct scsi_device_handler *get_device_handler(const char *name)
 {
@@ -45,21 +44,6 @@ static struct scsi_device_handler *get_device_handler(const char *name)
         return found;
 }
 
-static struct scsi_device_handler *get_device_handler_by_idx(int idx)
-{
-        struct scsi_device_handler *tmp, *found = NULL;
-
-        spin_lock(&list_lock);
-        list_for_each_entry(tmp, &scsi_dh_list, list) {
-                if (tmp->idx == idx) {
-                        found = tmp;
-                        break;
-                }
-        }
-        spin_unlock(&list_lock);
-        return found;
-}
-
 /*
  * device_handler_match_function - Match a device handler to a device
  * @sdev - SCSI device to be tested
@@ -84,23 +68,6 @@ device_handler_match_function(struct scsi_device *sdev)
 }
 
 /*
- * device_handler_match_devlist - Match a device handler to a device
- * @sdev - SCSI device to be tested
- *
- * Tests @sdev against all device_handler registered in the devlist.
- * Returns the found device handler or NULL if not found.
- */
-static struct scsi_device_handler *
-device_handler_match_devlist(struct scsi_device *sdev)
-{
-        int idx;
-
-        idx = scsi_get_device_flags_keyed(sdev, sdev->vendor, sdev->model,
-                                          SCSI_DEVINFO_DH);
-        return get_device_handler_by_idx(idx);
-}
-
-/*
  * device_handler_match - Attach a device handler to a device
  * @scsi_dh - The device handler to match against or NULL
  * @sdev - SCSI device to be tested against @scsi_dh
@@ -116,8 +83,6 @@ device_handler_match(struct scsi_device_handler *scsi_dh,
         struct scsi_device_handler *found_dh;
 
         found_dh = device_handler_match_function(sdev);
-        if (!found_dh)
-                found_dh = device_handler_match_devlist(sdev);
 
         if (scsi_dh && found_dh != scsi_dh)
                 found_dh = NULL;
@@ -361,25 +326,14 @@ static int scsi_dh_notifier_remove(struct device *dev, void *data)
  */
 int scsi_register_device_handler(struct scsi_device_handler *scsi_dh)
 {
-        int i;
 
         if (get_device_handler(scsi_dh->name))
                 return -EBUSY;
 
         spin_lock(&list_lock);
-        scsi_dh->idx = scsi_dh_list_idx++;
         list_add(&scsi_dh->list, &scsi_dh_list);
         spin_unlock(&list_lock);
 
-        for (i = 0; scsi_dh->devlist && scsi_dh->devlist[i].vendor; i++) {
-                scsi_dev_info_list_add_keyed(0,
-                                        scsi_dh->devlist[i].vendor,
-                                        scsi_dh->devlist[i].model,
-                                        NULL,
-                                        scsi_dh->idx,
-                                        SCSI_DEVINFO_DH);
-        }
-
         bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, scsi_dh_notifier_add);
         printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name);
 
@@ -396,7 +350,6 @@ EXPORT_SYMBOL_GPL(scsi_register_device_handler);
  */
 int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
 {
-        int i;
 
         if (!get_device_handler(scsi_dh->name))
                 return -ENODEV;
@@ -404,12 +357,6 @@ int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
         bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh,
                          scsi_dh_notifier_remove);
 
-        for (i = 0; scsi_dh->devlist && scsi_dh->devlist[i].vendor; i++) {
-                scsi_dev_info_list_del_keyed(scsi_dh->devlist[i].vendor,
-                                             scsi_dh->devlist[i].model,
-                                             SCSI_DEVINFO_DH);
-        }
-
         spin_lock(&list_lock);
         list_del(&scsi_dh->list);
         spin_unlock(&list_lock);
@@ -588,10 +535,6 @@ static int __init scsi_dh_init(void)
 {
         int r;
 
-        r = scsi_dev_info_add_list(SCSI_DEVINFO_DH, "SCSI Device Handler");
-        if (r)
-                return r;
-
         r = bus_register_notifier(&scsi_bus_type, &scsi_dh_nb);
 
         if (!r)
@@ -606,7 +549,6 @@ static void __exit scsi_dh_exit(void)
         bus_for_each_dev(&scsi_bus_type, NULL, NULL,
                          scsi_dh_sysfs_attr_remove);
         bus_unregister_notifier(&scsi_bus_type, &scsi_dh_nb);
-        scsi_dev_info_remove_list(SCSI_DEVINFO_DH);
 }
 
 module_init(scsi_dh_init);