RDMA/hns: Modify pi vlaue when cq overflows

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>
Link: https://lore.kernel.org/r/1565343666-73193-5-git-send-email-oulijun@huawei.com
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 7a14f0be501947ce1d1765b8a4fabb61f35e1e9f..e05a6a290a5547b9c3d4cea495e53cc104459f42 100644 (file)
--- 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;
        }