ide-tape: remove idetape_remove_stage_head()

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 0 insertions, 40 deletions

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 25ffcbffb02a..cbba475ebc5a 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -692,41 +692,6 @@ static void idetape_kfree_stage(idetape_tape_t *tape, idetape_stage_t *stage)
 }
 
 /*
- * Remove tape->first_stage from the pipeline. The caller should avoid race
- * conditions.
- */
-static void idetape_remove_stage_head(ide_drive_t *drive)
-{
-        idetape_tape_t *tape = drive->driver_data;
-        idetape_stage_t *stage;
-
-        debug_log(DBG_PROCS, "Enter %s\n", __func__);
-
-        if (tape->first_stage == NULL) {
-                printk(KERN_ERR "ide-tape: bug: tape->first_stage is NULL\n");
-                return;
-        }
-        if (tape->active_stage == tape->first_stage) {
-                printk(KERN_ERR "ide-tape: bug: Trying to free our active "
-                                "pipeline stage\n");
-                return;
-        }
-        stage = tape->first_stage;
-        tape->first_stage = stage->next;
-        idetape_kfree_stage(tape, stage);
-        tape->nr_stages--;
-        if (tape->first_stage == NULL) {
-                tape->last_stage = NULL;
-                if (tape->next_stage != NULL)
-                        printk(KERN_ERR "ide-tape: bug: tape->next_stage !="
-                                        " NULL\n");
-                if (tape->nr_stages)
-                        printk(KERN_ERR "ide-tape: bug: nr_stages should be 0 "
-                                        "now\n");
-        }
-}
-
-/*
  * This will free all the pipeline stages starting from new_last_stage->next
  * to the end of the list, and point tape->last_stage to new_last_stage.
  */
@@ -762,7 +727,6 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
         idetape_tape_t *tape = drive->driver_data;
         unsigned long flags;
         int error;
-        int remove_stage = 0;
         idetape_stage_t *active_stage;
 
         debug_log(DBG_PROCS, "Enter %s\n", __func__);
@@ -790,7 +754,6 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
                 tape->active_data_rq = NULL;
                 tape->nr_pending_stages--;
                 if (rq->cmd[0] & REQ_IDETAPE_WRITE) {
-                        remove_stage = 1;
                         if (error) {
                                 set_bit(IDETAPE_FLAG_PIPELINE_ERR,
                                         &tape->flags);
@@ -831,8 +794,6 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
         }
         ide_end_drive_cmd(drive, 0, 0);
 
-        if (remove_stage)
-                idetape_remove_stage_head(drive);
         if (tape->active_data_rq == NULL)
                 clear_bit(IDETAPE_FLAG_PIPELINE_ACTIVE, &tape->flags);
         spin_unlock_irqrestore(&tape->lock, flags);
@@ -1914,7 +1875,6 @@ static int __idetape_discard_read_pipeline(ide_drive_t *drive)
                 cnt += rq_ptr->nr_sectors - rq_ptr->current_nr_sectors;
                 if (rq_ptr->errors == IDETAPE_ERROR_FILEMARK)
                         ++cnt;
-                idetape_remove_stage_head(drive);
         }
         tape->nr_pending_stages = 0;
         tape->max_stages = tape->min_pipeline;