RDMA/hns: Remove redundant parameter "mailbox" in the mailbox

The parameter "out_param" of the mailbox is always null when the context is
destroyed. So remove the function parameter "mailbox".

Link: https://lore.kernel.org/r/20220302064830.61706-4-liangwenpeng@huawei.comSigned-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/hw/hns/hns_roce_device.h

@@ -1145,7 +1145,6 @@ int hns_roce_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
 		       unsigned int *sg_offset);
 int hns_roce_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
 int hns_roce_hw_destroy_mpt(struct hns_roce_dev *hr_dev,
-			    struct hns_roce_cmd_mailbox *mailbox,
 			    unsigned long mpt_index);
 unsigned long key_to_hw_index(u32 key);
 

drivers/infiniband/hw/hns/hns_roce_mr.c

@@ -56,11 +56,10 @@ static int hns_roce_hw_create_mpt(struct hns_roce_dev *hr_dev,
 }
 
 int hns_roce_hw_destroy_mpt(struct hns_roce_dev *hr_dev,
-			    struct hns_roce_cmd_mailbox *mailbox,
 			    unsigned long mpt_index)
 {
-	return hns_roce_cmd_mbox(hr_dev, 0, mailbox ? mailbox->dma : 0,
-				 mpt_index, HNS_ROCE_CMD_DESTROY_MPT);
+	return hns_roce_cmd_mbox(hr_dev, 0, 0, mpt_index,
+				 HNS_ROCE_CMD_DESTROY_MPT);
 }
 
 static int alloc_mr_key(struct hns_roce_dev *hr_dev, struct hns_roce_mr *mr)
@@ -142,7 +141,7 @@ static void hns_roce_mr_free(struct hns_roce_dev *hr_dev,
 	int ret;
 
 	if (mr->enabled) {
-		ret = hns_roce_hw_destroy_mpt(hr_dev, NULL,
+		ret = hns_roce_hw_destroy_mpt(hr_dev,
 					      key_to_hw_index(mr->key) &
 					      (hr_dev->caps.num_mtpts - 1));
 		if (ret)
@@ -306,7 +305,7 @@ struct ib_mr *hns_roce_rereg_user_mr(struct ib_mr *ibmr, int flags, u64 start,
 	if (ret)
 		goto free_cmd_mbox;
 
-	ret = hns_roce_hw_destroy_mpt(hr_dev, NULL, mtpt_idx);
+	ret = hns_roce_hw_destroy_mpt(hr_dev, mtpt_idx);
 	if (ret)
 		ibdev_warn(ib_dev, "failed to destroy MPT, ret = %d.\n", ret);
 
@@ -477,7 +476,7 @@ static void hns_roce_mw_free(struct hns_roce_dev *hr_dev,
 	int ret;
 
 	if (mw->enabled) {
-		ret = hns_roce_hw_destroy_mpt(hr_dev, NULL,
+		ret = hns_roce_hw_destroy_mpt(hr_dev,
 					      key_to_hw_index(mw->rkey) &
 					      (hr_dev->caps.num_mtpts - 1));
 		if (ret)

drivers/infiniband/hw/hns/hns_roce_srq.c

@@ -68,11 +68,9 @@ static int hns_roce_hw_create_srq(struct hns_roce_dev *dev,
 }
 
 static int hns_roce_hw_destroy_srq(struct hns_roce_dev *dev,
-				   struct hns_roce_cmd_mailbox *mailbox,
 				   unsigned long srq_num)
 {
-	return hns_roce_cmd_mbox(dev, 0, mailbox ? mailbox->dma : 0, srq_num,
-				 HNS_ROCE_CMD_DESTROY_SRQ);
+	return hns_roce_cmd_mbox(dev, 0, 0, srq_num, HNS_ROCE_CMD_DESTROY_SRQ);
 }
 
 static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq)
@@ -144,7 +142,7 @@ static void free_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq)
 	struct hns_roce_srq_table *srq_table = &hr_dev->srq_table;
 	int ret;
 
-	ret = hns_roce_hw_destroy_srq(hr_dev, NULL, srq->srqn);
+	ret = hns_roce_hw_destroy_srq(hr_dev, srq->srqn);
 	if (ret)
 		dev_err(hr_dev->dev, "DESTROY_SRQ failed (%d) for SRQN %06lx\n",
 			ret, srq->srqn);