RDMA/erdma: Eliminate unnecessary casting for erdma_post_cmd_wait

erdma_post_cmd_wait does not use the 'u64 *req' input parameter directly.
So it is better to define it to 'void *req', and by this we can eliminate
the casting when calling erdma_post_cmd_wait.

Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220909093822.33868-2-chengyou@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

5 files changed, 12 insertions, 22 deletions

diff --git a/drivers/infiniband/hw/erdma/erdma.h b/drivers/infiniband/hw/erdma/erdma.h
index 2aae635c1c8d..07bcd688fdb7 100644
--- a/drivers/infiniband/hw/erdma/erdma.h
+++ b/drivers/infiniband/hw/erdma/erdma.h
@@ -269,7 +269,7 @@ void erdma_finish_cmdq_init(struct erdma_dev *dev);
 void erdma_cmdq_destroy(struct erdma_dev *dev);
 
 void erdma_cmdq_build_reqhdr(u64 *hdr, u32 mod, u32 op);
-int erdma_post_cmd_wait(struct erdma_cmdq *cmdq, u64 *req, u32 req_size,
+int erdma_post_cmd_wait(struct erdma_cmdq *cmdq, void *req, u32 req_size,
 			u64 *resp0, u64 *resp1);
 void erdma_cmdq_completion_handler(struct erdma_cmdq *cmdq);
 
diff --git a/drivers/infiniband/hw/erdma/erdma_cmdq.c b/drivers/infiniband/hw/erdma/erdma_cmdq.c
index 57da0c670472..c8f93dc11449 100644
--- a/drivers/infiniband/hw/erdma/erdma_cmdq.c
+++ b/drivers/infiniband/hw/erdma/erdma_cmdq.c
@@ -441,7 +441,7 @@ void erdma_cmdq_build_reqhdr(u64 *hdr, u32 mod, u32 op)
 	       FIELD_PREP(ERDMA_CMD_HDR_OPCODE_MASK, op);
 }
 
-int erdma_post_cmd_wait(struct erdma_cmdq *cmdq, u64 *req, u32 req_size,
+int erdma_post_cmd_wait(struct erdma_cmdq *cmdq, void *req, u32 req_size,
 			u64 *resp0, u64 *resp1)
 {
 	struct erdma_comp_wait *comp_wait;
diff --git a/drivers/infiniband/hw/erdma/erdma_eq.c b/drivers/infiniband/hw/erdma/erdma_eq.c
index 8f2d094e0227..09ddedb5c1b5 100644
--- a/drivers/infiniband/hw/erdma/erdma_eq.c
+++ b/drivers/infiniband/hw/erdma/erdma_eq.c
@@ -229,9 +229,7 @@ static int create_eq_cmd(struct erdma_dev *dev, u32 eqn, struct erdma_eq *eq)
 	req.db_dma_addr_l = lower_32_bits(db_info_dma_addr);
 	req.db_dma_addr_h = upper_32_bits(db_info_dma_addr);
 
-	return erdma_post_cmd_wait(&dev->cmdq, (u64 *)&req,
-				   sizeof(struct erdma_cmdq_create_eq_req),
-				   NULL, NULL);
+	return erdma_post_cmd_wait(&dev->cmdq, &req, sizeof(req), NULL, NULL);
 }
 
 static int erdma_ceq_init_one(struct erdma_dev *dev, u16 ceqn)
@@ -281,8 +279,7 @@ static void erdma_ceq_uninit_one(struct erdma_dev *dev, u16 ceqn)
 	req.qtype = ERDMA_EQ_TYPE_CEQ;
 	req.vector_idx = ceqn + 1;
 
-	err = erdma_post_cmd_wait(&dev->cmdq, (u64 *)&req, sizeof(req), NULL,
-				  NULL);
+	err = erdma_post_cmd_wait(&dev->cmdq, &req, sizeof(req), NULL, NULL);
 	if (err)
 		return;
 
diff --git a/drivers/infiniband/hw/erdma/erdma_qp.c b/drivers/infiniband/hw/erdma/erdma_qp.c
index 72f08171a28a..5d5827fd959f 100644
--- a/drivers/infiniband/hw/erdma/erdma_qp.c
+++ b/drivers/infiniband/hw/erdma/erdma_qp.c
@@ -105,8 +105,7 @@ static int erdma_modify_qp_state_to_rts(struct erdma_qp *qp,
 		req.send_nxt += MPA_DEFAULT_HDR_LEN + qp->attrs.pd_len;
 	req.recv_nxt = tp->rcv_nxt;
 
-	return erdma_post_cmd_wait(&dev->cmdq, (u64 *)&req, sizeof(req), NULL,
-				   NULL);
+	return erdma_post_cmd_wait(&dev->cmdq, &req, sizeof(req), NULL, NULL);
 }
 
 static int erdma_modify_qp_state_to_stop(struct erdma_qp *qp,
@@ -124,8 +123,7 @@ static int erdma_modify_qp_state_to_stop(struct erdma_qp *qp,
 	req.cfg = FIELD_PREP(ERDMA_CMD_MODIFY_QP_STATE_MASK, attrs->state) |
 		  FIELD_PREP(ERDMA_CMD_MODIFY_QP_QPN_MASK, QP_ID(qp));
 
-	return erdma_post_cmd_wait(&dev->cmdq, (u64 *)&req, sizeof(req), NULL,
-				   NULL);
+	return erdma_post_cmd_wait(&dev->cmdq, &req, sizeof(req), NULL, NULL);
 }
 
 int erdma_modify_qp_internal(struct erdma_qp *qp, struct erdma_qp_attrs *attrs,
diff --git a/drivers/infiniband/hw/erdma/erdma_verbs.c b/drivers/infiniband/hw/erdma/erdma_verbs.c
index a7a3d42e2016..32fe418843a6 100644
--- a/drivers/infiniband/hw/erdma/erdma_verbs.c
+++ b/drivers/infiniband/hw/erdma/erdma_verbs.c
@@ -102,7 +102,7 @@ static int create_qp_cmd(struct erdma_dev *dev, struct erdma_qp *qp)
 		req.rq_db_info_dma_addr = user_qp->rq_db_info_dma_addr;
 	}
 
-	err = erdma_post_cmd_wait(&dev->cmdq, (u64 *)&req, sizeof(req), &resp0,
+	err = erdma_post_cmd_wait(&dev->cmdq, &req, sizeof(req), &resp0,
 				  &resp1);
 	if (!err)
 		qp->attrs.cookie =
@@ -151,8 +151,7 @@ static int regmr_cmd(struct erdma_dev *dev, struct erdma_mr *mr)
 	}
 
 post_cmd:
-	return erdma_post_cmd_wait(&dev->cmdq, (u64 *)&req, sizeof(req), NULL,
-				   NULL);
+	return erdma_post_cmd_wait(&dev->cmdq, &req, sizeof(req), NULL, NULL);
 }
 
 static int create_cq_cmd(struct erdma_dev *dev, struct erdma_cq *cq)
@@ -202,8 +201,7 @@ static int create_cq_cmd(struct erdma_dev *dev, struct erdma_cq *cq)
 		req.cq_db_info_addr = cq->user_cq.db_info_dma_addr;
 	}
 
-	return erdma_post_cmd_wait(&dev->cmdq, (u64 *)&req, sizeof(req), NULL,
-				   NULL);
+	return erdma_post_cmd_wait(&dev->cmdq, &req, sizeof(req), NULL, NULL);
 }
 
 static int erdma_alloc_idx(struct erdma_resource_cb *res_cb)
@@ -976,8 +974,7 @@ int erdma_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata)
 	req.cfg = FIELD_PREP(ERDMA_CMD_MR_MPT_IDX_MASK, ibmr->lkey >> 8) |
 		  FIELD_PREP(ERDMA_CMD_MR_KEY_MASK, ibmr->lkey & 0xFF);
 
-	ret = erdma_post_cmd_wait(&dev->cmdq, (u64 *)&req, sizeof(req), NULL,
-				  NULL);
+	ret = erdma_post_cmd_wait(&dev->cmdq, &req, sizeof(req), NULL, NULL);
 	if (ret)
 		return ret;
 
@@ -1002,8 +999,7 @@ int erdma_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata)
 				CMDQ_OPCODE_DESTROY_CQ);
 	req.cqn = cq->cqn;
 
-	err = erdma_post_cmd_wait(&dev->cmdq, (u64 *)&req, sizeof(req), NULL,
-				  NULL);
+	err = erdma_post_cmd_wait(&dev->cmdq, &req, sizeof(req), NULL, NULL);
 	if (err)
 		return err;
 
@@ -1040,8 +1036,7 @@ int erdma_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata)
 				CMDQ_OPCODE_DESTROY_QP);
 	req.qpn = QP_ID(qp);
 
-	err = erdma_post_cmd_wait(&dev->cmdq, (u64 *)&req, sizeof(req), NULL,
-				  NULL);
+	err = erdma_post_cmd_wait(&dev->cmdq, &req, sizeof(req), NULL, NULL);
 	if (err)
 		return err;