From: Weihang Li <liweihang@huawei.com>
Date: Fri, 8 May 2020 17:45:57 +0800
Subject: RDMA/hns: Remove redundant memcpy()
Patch-mainline: v5.8-rc1
Git-commit: 252067e95035151372f21c0c8626bf6fed9c5f0b
References: jsc#SLE-14777

srq_context is a local variables and is only used to get some fields from
buffer of mailbox. It's meaningless to copy mailbox's buffer's contents
back to it.

Link: https://lore.kernel.org/r/1588931159-56875-8-git-send-email-liweihang@huawei.com
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c |    2 --
 1 file changed, 2 deletions(-)

--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -5047,8 +5047,6 @@ static int hns_roce_v2_query_srq(struct
 	attr->max_wr = srq->wqe_cnt - 1;
 	attr->max_sge = srq->max_gs;
 
-	memcpy(srq_context, mailbox->buf, sizeof(*srq_context));
-
 out:
 	hns_roce_free_cmd_mailbox(hr_dev, mailbox);
 	return ret;