| Message ID | 1544265611-50379-4-git-send-email-oulijun@huawei.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 4af07f01f7a787ba5158352b98c9e3cb74995a1c |
| Delegated to: | Jason Gunthorpe |
| Headers | show |
| Series | [v3,for-next,1/5] RDMA/hns: Init qp context when modify qp from reset to init | expand |
diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c index fabc95d..ee5991b 100644 --- a/drivers/infiniband/hw/hns/hns_roce_mr.c +++ b/drivers/infiniband/hw/hns/hns_roce_mr.c @@ -1128,14 +1128,14 @@ struct ib_mr *hns_roce_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, goto err_umem; } } else { - int pbl_size = 1; + u64 pbl_size = 1; bt_size = (1 << (hr_dev->caps.pbl_ba_pg_sz + PAGE_SHIFT)) / 8; for (i = 0; i < hr_dev->caps.pbl_hop_num; i++) pbl_size *= bt_size; if (n > pbl_size) { dev_err(dev, - " MR len %lld err. MR page num is limited to %d!\n", + " MR len %lld err. MR page num is limited to %lld!\n", length, pbl_size); ret = -EINVAL; goto err_umem;
It will prevent multiply overflow when defines the pbl for u64 type. Signed-off-by: Lijun Ou <oulijun@huawei.com> --- drivers/infiniband/hw/hns/hns_roce_mr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)