This is a note to let you know that I've just added the patch titled RDMA/hns: Force srq_limit to 0 when creating SRQ to the 5.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: rdma-hns-force-srq_limit-to-0-when-creating-srq.patch and it can be found in the queue-5.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 1487e318615c5249d3bae88161f553a29f27bc50 Author: Wenpeng Liang <liangwenpeng@xxxxxxxxxx> Date: Sat Jan 30 16:58:01 2021 +0800 RDMA/hns: Force srq_limit to 0 when creating SRQ [ Upstream commit b5df9b7a2f965b7903850d8f89846ffe0080b84b ] According to the IB Specification, srq_limit shouldn't be configured during SRQ creation. If a user set srq_limit at this time, the driver should forced it to zero, or the result of creating SRQ will conflict with the result of querying SRQ. Fixes: c7bcb13442e1 ("RDMA/hns: Add SRQ support for hip08 kernel mode") Link: https://lore.kernel.org/r/1611997090-48820-4-git-send-email-liweihang@xxxxxxxxxx Signed-off-by: Wenpeng Liang <liangwenpeng@xxxxxxxxxx> Signed-off-by: Weihang Li <liweihang@xxxxxxxxxx> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/infiniband/hw/hns/hns_roce_srq.c b/drivers/infiniband/hw/hns/hns_roce_srq.c index 9f60a0a745e11..ecc42c59e3cfc 100644 --- a/drivers/infiniband/hw/hns/hns_roce_srq.c +++ b/drivers/infiniband/hw/hns/hns_roce_srq.c @@ -338,6 +338,7 @@ int hns_roce_create_srq(struct ib_srq *ib_srq, roundup_pow_of_two(init_attr->attr.max_sge + srq->rsv_sge); init_attr->attr.max_wr = srq->wqe_cnt; init_attr->attr.max_sge = srq->max_gs; + init_attr->attr.srq_limit = 0; if (udata) { ret = ib_copy_from_udata(&ucmd, udata,