6.13-stable review patch. If anyone has any objections, please let me know.
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From: Junxian Huang huangjunxian6@hisilicon.com
[ Upstream commit 13c90c222049764bb7e6a1689bd785f424bd8bd5 ]
SQ params from userspace are checked in by set_user_sq_size(). But when the check fails, the function doesn't return but instead keep running and overwrite 'ret'. As a result, the invalid params will not get blocked actually.
Add a return right after the failed check. Besides, although the check result of kernel sq params will not be overwritten, to keep coding style unified, move default_congest_type() before set_kernel_sq_size().
Fixes: 6ec429d5887a ("RDMA/hns: Support userspace configuring congestion control algorithm with QP granularity") Signed-off-by: Junxian Huang huangjunxian6@hisilicon.com Link: https://patch.msgid.link/20250311084857.3803665-5-huangjunxian6@hisilicon.co... Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/hw/hns/hns_roce_qp.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c index a97348a1c61f1..8408f9a5c309d 100644 --- a/drivers/infiniband/hw/hns/hns_roce_qp.c +++ b/drivers/infiniband/hw/hns/hns_roce_qp.c @@ -1121,24 +1121,23 @@ static int set_qp_param(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp, ibucontext); hr_qp->config = uctx->config; ret = set_user_sq_size(hr_dev, &init_attr->cap, hr_qp, ucmd); - if (ret) + if (ret) { ibdev_err(ibdev, "failed to set user SQ size, ret = %d.\n", ret); + return ret; + }
ret = set_congest_param(hr_dev, hr_qp, ucmd); - if (ret) - return ret; } else { if (hr_dev->pci_dev->revision >= PCI_REVISION_ID_HIP09) hr_qp->config = HNS_ROCE_EXSGE_FLAGS; + default_congest_type(hr_dev, hr_qp); ret = set_kernel_sq_size(hr_dev, &init_attr->cap, hr_qp); if (ret) ibdev_err(ibdev, "failed to set kernel SQ size, ret = %d.\n", ret); - - default_congest_type(hr_dev, hr_qp); }
return ret;