diff options
| author | Lijun Ou <oulijun@huawei.com> | 2018-12-08 13:40:09 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-12-11 22:04:06 +0300 |
| commit | 4af07f01f7a787ba5158352b98c9e3cb74995a1c (patch) | |
| tree | 50f48e96a229bf96150c3fa55bf02ebd88f3dd22 /drivers/infiniband/hw/hns | |
| parent | 233673e422de70d6ba32e7b41dd75e47f036d03b (diff) | |
| download | linux-4af07f01f7a787ba5158352b98c9e3cb74995a1c.tar.xz | |
RDMA/hns: Fix the bug while use multi-hop of pbl
It will prevent multiply overflow when defines the pbl for u64 type.
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/hns')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_mr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c index fabc95dbdf97..ee5991bd4171 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; |