From: Wenpeng Liang liangwenpeng@huawei.com
[ Upstream commit 411c1e6774e2e1f96b1ccce4f119376b94ade3e4 ]
srq_desc_size should be rounded up to pow of two before used, or related calculation may cause allocating wrong size of memory for srq buffer.
Fixes: c7bcb13442e1 ("RDMA/hns: Add SRQ support for hip08 kernel mode") Link: https://lore.kernel.org/r/1572575610-52530-3-git-send-email-liweihang@hisili... Signed-off-by: Wenpeng Liang liangwenpeng@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 --- drivers/infiniband/hw/hns/hns_roce_srq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_srq.c b/drivers/infiniband/hw/hns/hns_roce_srq.c index 38bb548eaa6d8..9768e377cd22c 100644 --- a/drivers/infiniband/hw/hns/hns_roce_srq.c +++ b/drivers/infiniband/hw/hns/hns_roce_srq.c @@ -221,7 +221,7 @@ int hns_roce_create_srq(struct ib_srq *ib_srq, srq->max = roundup_pow_of_two(srq_init_attr->attr.max_wr + 1); srq->max_gs = srq_init_attr->attr.max_sge;
- srq_desc_size = max(16, 16 * srq->max_gs); + srq_desc_size = roundup_pow_of_two(max(16, 16 * srq->max_gs));
srq->wqe_shift = ilog2(srq_desc_size);