nvmet: remove zeroout memset call for struct

Declare and initialize structure variables to zero values so that we can
remove zeroout memset calls in the target/rdma.c.
Signed-off-by: NChaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: NChristoph Hellwig <hch@lst.de>

drivers/nvme/target/rdma.c

@@ -1257,7 +1257,7 @@ nvmet_rdma_find_get_device(struct rdma_cm_id *cm_id)
 
 static int nvmet_rdma_create_queue_ib(struct nvmet_rdma_queue *queue)
 {
-	struct ib_qp_init_attr qp_attr;
+	struct ib_qp_init_attr qp_attr = { };
 	struct nvmet_rdma_device *ndev = queue->dev;
 	int nr_cqe, ret, i, factor;
 
@@ -1275,7 +1275,6 @@ static int nvmet_rdma_create_queue_ib(struct nvmet_rdma_queue *queue)
 		goto out;
 	}
 
-	memset(&qp_attr, 0, sizeof(qp_attr));
 	qp_attr.qp_context = queue;
 	qp_attr.event_handler = nvmet_rdma_qp_event;
 	qp_attr.send_cq = queue->cq;