scsi: drop reason argument from ->change_queue_depth

Drop the now unused reason argument from the ->change_queue_depth method.
Also add a return value to scsi_adjust_queue_depth, and rename it to
scsi_change_queue_depth now that it can be used as the default
->change_queue_depth implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>

1 files changed, 1 insertions, 12 deletions

diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index 261a4c1da962..c75f2048319f 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -523,17 +523,6 @@ static ssize_t tw_show_stats(struct device *dev, struct device_attribute *attr,
         return len;
 } /* End tw_show_stats() */
 
-/* This function will set a devices queue depth */
-static int tw_change_queue_depth(struct scsi_device *sdev, int queue_depth,
-                                 int reason)
-{
-        if (reason != SCSI_QDEPTH_DEFAULT)
-                return -EOPNOTSUPP;
-
-        scsi_adjust_queue_depth(sdev, queue_depth);
-        return queue_depth;
-} /* End tw_change_queue_depth() */
-
 /* Create sysfs 'stats' entry */
 static struct device_attribute tw_host_stats_attr = {
         .attr = {
@@ -2268,7 +2257,7 @@ static struct scsi_host_template driver_template = {
         .queuecommand           = tw_scsi_queue,
         .eh_host_reset_handler  = tw_scsi_eh_reset,
         .bios_param             = tw_scsi_biosparam,
-        .change_queue_depth     = tw_change_queue_depth,
+        .change_queue_depth     = scsi_change_queue_depth,
         .can_queue              = TW_Q_LENGTH-2,
         .slave_configure        = tw_slave_configure,
         .this_id                = -1,