From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Lijun Ou <oulijun@huawei.com>, Jason Gunthorpe <jgg@mellanox.com>,
Sasha Levin <sashal@kernel.org>,
linux-rdma@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 030/219] RDMA/hns: Fix the bug while use multi-hop of pbl
Date: Fri, 22 Nov 2019 00:46:02 -0500 [thread overview]
Message-ID: <20191122054911.1750-23-sashal@kernel.org> (raw)
In-Reply-To: <20191122054911.1750-1-sashal@kernel.org>
From: Lijun Ou <oulijun@huawei.com>
[ Upstream commit 4af07f01f7a787ba5158352b98c9e3cb74995a1c ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/hw/hns/hns_roce_mr.c | 4 ++--
1 file 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 41a538d23b802..c68596d4e8037 100644
--- a/drivers/infiniband/hw/hns/hns_roce_mr.c
+++ b/drivers/infiniband/hw/hns/hns_roce_mr.c
@@ -1017,14 +1017,14 @@ 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;
--
2.20.1
next parent reply other threads:[~2019-11-22 6:30 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191122054911.1750-1-sashal@kernel.org>
2019-11-22 5:46 ` Sasha Levin [this message]
2019-11-22 5:46 ` [PATCH AUTOSEL 4.19 032/219] RDMA/vmw_pvrdma: Use atomic memory allocation in create AH Sasha Levin
2019-11-22 5:46 ` [PATCH AUTOSEL 4.19 087/219] net/mlx5: Continue driver initialization despite debugfs failure Sasha Levin
2019-11-22 5:47 ` [PATCH AUTOSEL 4.19 103/219] IB/qib: Fix an error code in qib_sdma_verbs_send() Sasha Levin
2019-11-22 5:47 ` [PATCH AUTOSEL 4.19 112/219] RDMA/srp: Propagate ib_post_send() failures to the SCSI mid-layer Sasha Levin
2019-11-22 5:47 ` [PATCH AUTOSEL 4.19 129/219] IB/rxe: Make counters thread safe Sasha Levin
2019-11-22 5:48 ` [PATCH AUTOSEL 4.19 160/219] infiniband: bnxt_re: qplib: Check the return value of send_message Sasha Levin
2019-11-22 5:48 ` [PATCH AUTOSEL 4.19 161/219] infiniband/qedr: Potential null ptr dereference of qp Sasha Levin
2019-11-22 5:49 ` [PATCH AUTOSEL 4.19 211/219] RDMA/hns: Fix the bug with updating rq head pointer when flush cqe Sasha Levin
2019-11-22 5:49 ` [PATCH AUTOSEL 4.19 212/219] RDMA/hns: Bugfix for the scene without receiver queue Sasha Levin
2019-11-22 5:49 ` [PATCH AUTOSEL 4.19 213/219] RDMA/hns: Fix the state of rereg mr Sasha Levin
2019-11-22 5:49 ` [PATCH AUTOSEL 4.19 214/219] RDMA/hns: Use GFP_ATOMIC in hns_roce_v2_modify_qp Sasha Levin
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