linux-kernel - [PATCH for-next 1/3] RDMA/hns: Fix inappropriate err code for unsupported operations

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Date:   Tue, 14 Nov 2023 20:34:47 +0800
From:   Junxian Huang <huangjunxian6@...ilicon.com>
To:     <jgg@...pe.ca>, <leon@...nel.org>
CC:     <linux-rdma@...r.kernel.org>, <linuxarm@...wei.com>,
        <linux-kernel@...r.kernel.org>, <huangjunxian6@...ilicon.com>
Subject: [PATCH for-next 1/3] RDMA/hns: Fix inappropriate err code for unsupported operations

EOPNOTSUPP is more situable than EINVAL for allocating XRCD while XRC
is not supported and unsupported resizing SRQ.

Fixes: 32548870d438 ("RDMA/hns: Add support for XRC on HIP09")
Fixes: 221109e64316 ("RDMA/hns: Add interception for resizing SRQs")
Signed-off-by: Junxian Huang <huangjunxian6@...ilicon.com>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 2 +-
 drivers/infiniband/hw/hns/hns_roce_pd.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 0cd2612a4987..c01307be06ab 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -5666,7 +5666,7 @@ static int hns_roce_v2_modify_srq(struct ib_srq *ibsrq,
 
 	/* Resizing SRQs is not supported yet */
 	if (srq_attr_mask & IB_SRQ_MAX_WR)
-		return -EINVAL;
+		return -EOPNOTSUPP;
 
 	if (srq_attr_mask & IB_SRQ_LIMIT) {
 		if (srq_attr->srq_limit > srq->wqe_cnt)
diff --git a/drivers/infiniband/hw/hns/hns_roce_pd.c b/drivers/infiniband/hw/hns/hns_roce_pd.c
index 783e71852c50..bd1fe89ca205 100644
--- a/drivers/infiniband/hw/hns/hns_roce_pd.c
+++ b/drivers/infiniband/hw/hns/hns_roce_pd.c
@@ -150,7 +150,7 @@ int hns_roce_alloc_xrcd(struct ib_xrcd *ib_xrcd, struct ib_udata *udata)
 	int ret;
 
 	if (!(hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_XRC))
-		return -EINVAL;
+		return -EOPNOTSUPP;
 
 	ret = hns_roce_xrcd_alloc(hr_dev, &xrcd->xrcdn);
 	if (ret)
-- 
2.30.0