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>
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@ -1128,14 +1128,14 @@ struct ib_mr *hns_roce_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
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goto err_umem;
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}
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} else {
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int pbl_size = 1;
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u64 pbl_size = 1;
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bt_size = (1 << (hr_dev->caps.pbl_ba_pg_sz + PAGE_SHIFT)) / 8;
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for (i = 0; i < hr_dev->caps.pbl_hop_num; i++)
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pbl_size *= bt_size;
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if (n > pbl_size) {
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dev_err(dev,
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" MR len %lld err. MR page num is limited to %d!\n",
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" MR len %lld err. MR page num is limited to %lld!\n",
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length, pbl_size);
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ret = -EINVAL;
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goto err_umem;
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