[PATCH] remove blk_queue_activity_fn

While working on bidi support at struct request level
I have found that blk_queue_activity_fn is actually never used.
The only user is in ide-probe.c with this code:

	/* enable led activity for disk drives only */
	if (drive->media == ide_disk && hwif->led_act)
		blk_queue_activity_fn(q, hwif->led_act, drive);

And led_act is never initialized anywhere.
(Looking back at older kernels it was used in the PPC arch, but was removed around 2.6.18)
Unless it is all for future use off course.
(this patch is against linux-2.6-block.git as off 2006/12/4)

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

2 files changed, 0 insertions, 7 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index e1c7286165ff..ea330d7b46c0 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -342,7 +342,6 @@ typedef void (unplug_fn) (request_queue_t *);
 
 struct bio_vec;
 typedef int (merge_bvec_fn) (request_queue_t *, struct bio *, struct bio_vec *);
-typedef void (activity_fn) (void *data, int rw);
 typedef int (issue_flush_fn) (request_queue_t *, struct gendisk *, sector_t *);
 typedef void (prepare_flush_fn) (request_queue_t *, struct request *);
 typedef void (softirq_done_fn)(struct request *);
@@ -384,7 +383,6 @@ struct request_queue
         prep_rq_fn              *prep_rq_fn;
         unplug_fn               *unplug_fn;
         merge_bvec_fn           *merge_bvec_fn;
-        activity_fn             *activity_fn;
         issue_flush_fn          *issue_flush_fn;
         prepare_flush_fn        *prepare_flush_fn;
         softirq_done_fn         *softirq_done_fn;
@@ -411,8 +409,6 @@ struct request_queue
          */
         void                    *queuedata;
 
-        void                    *activity_data;
-
         /*
          * queue needs bounce pages for pages above this limit
          */
@@ -677,7 +673,6 @@ extern void blk_sync_queue(struct request_queue *q);
 extern void __blk_stop_queue(request_queue_t *q);
 extern void blk_run_queue(request_queue_t *);
 extern void blk_start_queueing(request_queue_t *);
-extern void blk_queue_activity_fn(request_queue_t *, activity_fn *, void *);
 extern int blk_rq_map_user(request_queue_t *, struct request *, void __user *, unsigned long);
 extern int blk_rq_unmap_user(struct request *);
 extern int blk_rq_map_kern(request_queue_t *, struct request *, void *, unsigned int, gfp_t);
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 64e070f62a87..e26a03981a94 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -804,8 +804,6 @@ typedef struct hwif_s {
         void            *hwif_data;     /* extra hwif data */
 
         unsigned dma;
-
-        void (*led_act)(void *data, int rw);
 } ____cacheline_internodealigned_in_smp ide_hwif_t;
 
 /*