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authorMoger, Babu <Babu.Moger@netapp.com>2011-12-02 00:03:12 +0400
committerJames Bottomley <JBottomley@Parallels.com>2011-12-15 10:55:00 +0400
commit2b132577a05ec2970581c99da70825430d5919df (patch)
tree5463487c144c396db13aade00bd560a61306cb08 /drivers/scsi/device_handler
parentbee89eae8de143b1d9f82ab7ab6d9daef8e44760 (diff)
downloadlinux-2b132577a05ec2970581c99da70825430d5919df.tar.xz
[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>
Diffstat (limited to 'drivers/scsi/device_handler')
-rw-r--r--drivers/scsi/device_handler/scsi_dh.c58
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);