[PATCH 5.14 142/432] RDMA/hns: Fix query destination qpn
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-09-16 17:24:36
Also in:
lkml
Subsystem:
hisilicon roce driver, infiniband subsystem, the rest · Maintainers:
Chengchang Tang, Junxian Huang, Jason Gunthorpe, Leon Romanovsky, Linus Torvalds
From: Wenpeng Liang <redacted>
[ Upstream commit e788a3cd5787aca74e0ee00202d4dca64b43f043 ]
The bit width of dqpn is 24 bits, using u8 will cause truncation error.
Fixes: 926a01dc000d ("RDMA/hns: Add QP operations support for hip08 SoC")
Link: https://lore.kernel.org/r/1629985056-57004-2-git-send-email-liangwenpeng@huawei.com (local)
Signed-off-by: Wenpeng Liang <redacted>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 21c82f5aff04..bf4d9f6658ff 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c@@ -5136,7 +5136,7 @@ static int hns_roce_v2_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, qp_attr->rq_psn = hr_reg_read(&context, QPC_RX_REQ_EPSN); qp_attr->sq_psn = (u32)hr_reg_read(&context, QPC_SQ_CUR_PSN); - qp_attr->dest_qp_num = (u8)hr_reg_read(&context, QPC_DQPN); + qp_attr->dest_qp_num = hr_reg_read(&context, QPC_DQPN); qp_attr->qp_access_flags = ((hr_reg_read(&context, QPC_RRE)) << V2_QP_RRE_S) | ((hr_reg_read(&context, QPC_RWE)) << V2_QP_RWE_S) |
--
2.30.2