diff mbox series

[for-next,4/9] RDMA/hns: Modify pi vlaue when cq overflows

Message ID 1565343666-73193-5-git-send-email-oulijun@huawei.com (mailing list archive)
State Accepted
Headers show
Series Bugfixes for 5.3-rc2 | expand

Commit Message

Lijun Ou Aug. 9, 2019, 9:41 a.m. UTC 
From: Yangyang Li <liyangyang20@huawei.com>

When exiting "for loop", the actual value of pi will be
increased by 1, which is compatible with the next calculation.
But when pi is equal to "ci + hr_cq-> ib_cq.cqe", the "break"
was called and the pi is actual value, it will lead one cqe
still existing, so the "==" should be modify to ">".

Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 0409851..c6b55a1 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -2407,7 +2407,7 @@  static void __hns_roce_v2_cq_clean(struct hns_roce_cq *hr_cq, u32 qpn,
 
 	for (prod_index = hr_cq->cons_index; get_sw_cqe_v2(hr_cq, prod_index);
 	     ++prod_index) {
-		if (prod_index == hr_cq->cons_index + hr_cq->ib_cq.cqe)
+		if (prod_index > hr_cq->cons_index + hr_cq->ib_cq.cqe)
 			break;
 	}