blk-mq: constify struct blk_mq_ops

Constify all instances of blk_mq_ops, as they are never modified.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

drivers/block/loop.c

@@ -1710,7 +1710,7 @@ static int loop_init_request(void *data, struct request *rq,
 	return 0;
 }
 
-static struct blk_mq_ops loop_mq_ops = {
+static const struct blk_mq_ops loop_mq_ops = {
 	.queue_rq       = loop_queue_rq,
 	.init_request	= loop_init_request,
 };

drivers/block/mtip32xx/mtip32xx.c

@@ -3889,7 +3889,7 @@ static enum blk_eh_timer_return mtip_cmd_timeout(struct request *req,
 	return BLK_EH_RESET_TIMER;
 }
 
-static struct blk_mq_ops mtip_mq_ops = {
+static const struct blk_mq_ops mtip_mq_ops = {
 	.queue_rq	= mtip_queue_rq,
 	.init_request	= mtip_init_cmd,
 	.exit_request	= mtip_free_cmd,

drivers/block/nbd.c

@@ -965,7 +965,7 @@ static int nbd_init_request(void *data, struct request *rq,
 	return 0;
 }
 
-static struct blk_mq_ops nbd_mq_ops = {
+static const struct blk_mq_ops nbd_mq_ops = {
 	.queue_rq	= nbd_queue_rq,
 	.init_request	= nbd_init_request,
 	.timeout	= nbd_xmit_timeout,

drivers/block/null_blk.c

@@ -398,7 +398,7 @@ static int null_init_hctx(struct blk_mq_hw_ctx *hctx, void *data,
 	return 0;
 }
 
-static struct blk_mq_ops null_mq_ops = {
+static const struct blk_mq_ops null_mq_ops = {
 	.queue_rq       = null_queue_rq,
 	.init_hctx	= null_init_hctx,
 	.complete	= null_softirq_done_fn,

drivers/block/rbd.c

@@ -4317,7 +4317,7 @@ static int rbd_init_request(void *data, struct request *rq,
 	return 0;
 }
 
-static struct blk_mq_ops rbd_mq_ops = {
+static const struct blk_mq_ops rbd_mq_ops = {
 	.queue_rq	= rbd_queue_rq,
 	.init_request	= rbd_init_request,
 };

drivers/block/virtio_blk.c

@@ -597,7 +597,7 @@ static int virtblk_map_queues(struct blk_mq_tag_set *set)
 	return blk_mq_virtio_map_queues(set, vblk->vdev, 0);
 }
 
-static struct blk_mq_ops virtio_mq_ops = {
+static const struct blk_mq_ops virtio_mq_ops = {
 	.queue_rq	= virtio_queue_rq,
 	.complete	= virtblk_request_done,
 	.init_request	= virtblk_init_request,

drivers/block/xen-blkfront.c

@@ -907,7 +907,7 @@ static int blkif_queue_rq(struct blk_mq_hw_ctx *hctx,
 	return BLK_MQ_RQ_QUEUE_BUSY;
 }
 
-static struct blk_mq_ops blkfront_mq_ops = {
+static const struct blk_mq_ops blkfront_mq_ops = {
 	.queue_rq = blkif_queue_rq,
 };
 

drivers/md/dm-rq.c

@@ -761,7 +761,7 @@ static int dm_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
 	return BLK_MQ_RQ_QUEUE_OK;
 }
 
-static struct blk_mq_ops dm_mq_ops = {
+static const struct blk_mq_ops dm_mq_ops = {
 	.queue_rq = dm_mq_queue_rq,
 	.complete = dm_softirq_done,
 	.init_request = dm_mq_init_request,

drivers/mtd/ubi/block.c

@@ -347,7 +347,7 @@ static int ubiblock_init_request(void *data, struct request *req,
 	return 0;
 }
 
-static struct blk_mq_ops ubiblock_mq_ops = {
+static const struct blk_mq_ops ubiblock_mq_ops = {
 	.queue_rq       = ubiblock_queue_rq,
 	.init_request	= ubiblock_init_request,
 };

drivers/nvme/host/fc.c

@@ -1948,7 +1948,7 @@ nvme_fc_complete_rq(struct request *rq)
 	blk_mq_end_request(rq, error);
 }
 
-static struct blk_mq_ops nvme_fc_mq_ops = {
+static const struct blk_mq_ops nvme_fc_mq_ops = {
 	.queue_rq	= nvme_fc_queue_rq,
 	.complete	= nvme_fc_complete_rq,
 	.init_request	= nvme_fc_init_request,
@@ -1959,7 +1959,7 @@ static struct blk_mq_ops nvme_fc_mq_ops = {
 	.timeout	= nvme_fc_timeout,
 };
 
-static struct blk_mq_ops nvme_fc_admin_mq_ops = {
+static const struct blk_mq_ops nvme_fc_admin_mq_ops = {
 	.queue_rq	= nvme_fc_queue_rq,
 	.complete	= nvme_fc_complete_rq,
 	.init_request	= nvme_fc_init_admin_request,

drivers/nvme/host/pci.c

@@ -1129,7 +1129,7 @@ static int nvme_create_queue(struct nvme_queue *nvmeq, int qid)
 	return result;
 }
 
-static struct blk_mq_ops nvme_mq_admin_ops = {
+static const struct blk_mq_ops nvme_mq_admin_ops = {
 	.queue_rq	= nvme_queue_rq,
 	.complete	= nvme_complete_rq,
 	.init_hctx	= nvme_admin_init_hctx,
@@ -1138,7 +1138,7 @@ static struct blk_mq_ops nvme_mq_admin_ops = {
 	.timeout	= nvme_timeout,
 };
 
-static struct blk_mq_ops nvme_mq_ops = {
+static const struct blk_mq_ops nvme_mq_ops = {
 	.queue_rq	= nvme_queue_rq,
 	.complete	= nvme_complete_rq,
 	.init_hctx	= nvme_init_hctx,

drivers/nvme/host/rdma.c

@@ -1517,7 +1517,7 @@ static void nvme_rdma_complete_rq(struct request *rq)
 	blk_mq_end_request(rq, error);
 }
 
-static struct blk_mq_ops nvme_rdma_mq_ops = {
+static const struct blk_mq_ops nvme_rdma_mq_ops = {
 	.queue_rq	= nvme_rdma_queue_rq,
 	.complete	= nvme_rdma_complete_rq,
 	.init_request	= nvme_rdma_init_request,
@@ -1528,7 +1528,7 @@ static struct blk_mq_ops nvme_rdma_mq_ops = {
 	.timeout	= nvme_rdma_timeout,
 };
 
-static struct blk_mq_ops nvme_rdma_admin_mq_ops = {
+static const struct blk_mq_ops nvme_rdma_admin_mq_ops = {
 	.queue_rq	= nvme_rdma_queue_rq,
 	.complete	= nvme_rdma_complete_rq,
 	.init_request	= nvme_rdma_init_admin_request,

drivers/nvme/target/loop.c

@@ -270,7 +270,7 @@ static int nvme_loop_init_admin_hctx(struct blk_mq_hw_ctx *hctx, void *data,
 	return 0;
 }
 
-static struct blk_mq_ops nvme_loop_mq_ops = {
+static const struct blk_mq_ops nvme_loop_mq_ops = {
 	.queue_rq	= nvme_loop_queue_rq,
 	.complete	= nvme_loop_complete_rq,
 	.init_request	= nvme_loop_init_request,
@@ -278,7 +278,7 @@ static struct blk_mq_ops nvme_loop_mq_ops = {
 	.timeout	= nvme_loop_timeout,
 };
 
-static struct blk_mq_ops nvme_loop_admin_mq_ops = {
+static const struct blk_mq_ops nvme_loop_admin_mq_ops = {
 	.queue_rq	= nvme_loop_queue_rq,
 	.complete	= nvme_loop_complete_rq,
 	.init_request	= nvme_loop_init_admin_request,

drivers/scsi/scsi_lib.c

@@ -2154,7 +2154,7 @@ struct request_queue *scsi_alloc_queue(struct scsi_device *sdev)
 	return q;
 }
 
-static struct blk_mq_ops scsi_mq_ops = {
+static const struct blk_mq_ops scsi_mq_ops = {
 	.queue_rq	= scsi_queue_rq,
 	.complete	= scsi_softirq_done,
 	.timeout	= scsi_timeout,