[PATCH 3/6] block: remove the always unused name argument to elevator_init

[Christoph Hellwig]

Reported-by: Damien Le Moal <damien.lem...@wdc.com>
Signed-off-by: Christoph Hellwig <h...@lst.de>
Reviewed-by: Damien Le Moal <damien.lem...@wdc.com>
Tested-by: Damien Le Moal <damien.lem...@wdc.com>
---
 block/blk-core.c     |  2 +-
 block/blk-mq-sched.c |  2 +-
 block/blk.h          |  2 +-
 block/elevator.c     | 10 ++--------
 4 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index b00e7e6340ca..18b691c93b63 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1179,7 +1179,7 @@ int blk_init_allocated_queue(struct request_queue *q)
        mutex_lock(&q->sysfs_lock);
 
        /* init elevator */
-       if (elevator_init(q, NULL)) {
+       if (elevator_init(q)) {
                mutex_unlock(&q->sysfs_lock);
                goto out_exit_flush_rq;
        }
diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c
index b0f2c2a40a0c..fd4f68d61df0 100644
--- a/block/blk-mq-sched.c
+++ b/block/blk-mq-sched.c
@@ -653,7 +653,7 @@ int blk_mq_sched_init(struct request_queue *q)
        int ret;
 
        mutex_lock(&q->sysfs_lock);
-       ret = elevator_init(q, NULL);
+       ret = elevator_init(q);
        mutex_unlock(&q->sysfs_lock);
 
        return ret;
diff --git a/block/blk.h b/block/blk.h
index a559c0532347..ab5ec2dadc7b 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -231,7 +231,7 @@ static inline void elv_deactivate_rq(struct request_queue 
*q, struct request *rq
                e->type->ops.sq.elevator_deactivate_req_fn(q, rq);
 }
 
-int elevator_init(struct request_queue *, char *);
+int elevator_init(struct request_queue *);
 void elevator_exit(struct request_queue *, struct elevator_queue *);
 int elv_register_queue(struct request_queue *q);
 void elv_unregister_queue(struct request_queue *q);
diff --git a/block/elevator.c b/block/elevator.c
index a7baa4687b28..9276540af2a1 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -199,7 +199,7 @@ static void elevator_release(struct kobject *kobj)
        kfree(e);
 }
 
-int elevator_init(struct request_queue *q, char *name)
+int elevator_init(struct request_queue *q)
 {
        struct elevator_type *e = NULL;
        int err;
@@ -213,19 +213,13 @@ int elevator_init(struct request_queue *q, char *name)
        if (unlikely(q->elevator))
                return 0;
 
-       if (name) {
-               e = elevator_get(q, name, true);
-               if (!e)
-                       return -EINVAL;
-       }
-
        /*
         * Use the default elevator specified by config boot param for
         * non-mq devices, or by config option. Don't try to load modules
         * as we could be running off async and request_module() isn't
         * allowed from async.
         */
-       if (!e && !q->mq_ops && *chosen_elevator) {
+       if (!q->mq_ops && *chosen_elevator) {
                e = elevator_get(q, chosen_elevator, false);
                if (!e)
                        printk(KERN_ERR "I/O scheduler %s not found\n",
-- 
2.17.0