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| author | Sirong Wang <wangsirong@huawei.com> | 2019-11-01 05:33:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-17 22:37:25 +0300 |
| commit | 223767740e15a0bd5c4c91baa9ffa21b92653ae1 (patch) | |
| tree | c97e20db048d7c37ad150357a80d4b8c60530423 /drivers/infiniband/hw/hns | |
| parent | 4404070f6a8cf2c86c76176e4b7221fa6edd5368 (diff) | |
| download | linux-223767740e15a0bd5c4c91baa9ffa21b92653ae1.tar.xz | |
RDMA/hns: Correct the value of HNS_ROCE_HEM_CHUNK_LEN
[ Upstream commit 531eb45b3da4267fc2a64233ba256c8ffb02edd2 ]
Size of pointer to buf field of struct hns_roce_hem_chunk should be
considered when calculating HNS_ROCE_HEM_CHUNK_LEN, or sg table size will
be larger than expected when allocating hem.
Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver")
Link: https://lore.kernel.org/r/1572575610-52530-2-git-send-email-liweihang@hisilicon.com
Signed-off-by: Sirong Wang <wangsirong@huawei.com>
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/infiniband/hw/hns')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hem.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.h b/drivers/infiniband/hw/hns/hns_roce_hem.h index 435748858252..8e8917ebb013 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hem.h +++ b/drivers/infiniband/hw/hns/hns_roce_hem.h @@ -52,7 +52,7 @@ enum { #define HNS_ROCE_HEM_CHUNK_LEN \ ((256 - sizeof(struct list_head) - 2 * sizeof(int)) / \ - (sizeof(struct scatterlist))) + (sizeof(struct scatterlist) + sizeof(void *))) enum { HNS_ROCE_HEM_PAGE_SHIFT = 12, |