4.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
[ Upstream commit c1dfc0114c901b4f46c85ceff0491debf2b2a2ec ]
The srq->swq[] is allocated in bnxt_qplib_create_srq(). It has
srq->hwq.max_elements elements so these tests should be > instead of >=
or we might go beyond the end of the array.
Fixes: 1ac5a4047975 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Acked-by: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/hw/bnxt_re/qplib_fp.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
@@ -2354,7 +2354,7 @@ static int bnxt_qplib_cq_process_res_rc(
srq = qp->srq;
if (!srq)
return -EINVAL;
- if (wr_id_idx > srq->hwq.max_elements) {
+ if (wr_id_idx >= srq->hwq.max_elements) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process RC ");
dev_err(&cq->hwq.pdev->dev,
@@ -2369,7 +2369,7 @@ static int bnxt_qplib_cq_process_res_rc(
*pcqe = cqe;
} else {
rq = &qp->rq;
- if (wr_id_idx > rq->hwq.max_elements) {
+ if (wr_id_idx >= rq->hwq.max_elements) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process RC ");
dev_err(&cq->hwq.pdev->dev,
@@ -2437,7 +2437,7 @@ static int bnxt_qplib_cq_process_res_ud(
if (!srq)
return -EINVAL;
- if (wr_id_idx > srq->hwq.max_elements) {
+ if (wr_id_idx >= srq->hwq.max_elements) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process UD ");
dev_err(&cq->hwq.pdev->dev,
@@ -2452,7 +2452,7 @@ static int bnxt_qplib_cq_process_res_ud(
*pcqe = cqe;
} else {
rq = &qp->rq;
- if (wr_id_idx > rq->hwq.max_elements) {
+ if (wr_id_idx >= rq->hwq.max_elements) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process UD ");
dev_err(&cq->hwq.pdev->dev,
@@ -2546,7 +2546,7 @@ static int bnxt_qplib_cq_process_res_raw
"QPLIB: FP: SRQ used but not defined??");
return -EINVAL;
}
- if (wr_id_idx > srq->hwq.max_elements) {
+ if (wr_id_idx >= srq->hwq.max_elements) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process Raw/QP1 ");
dev_err(&cq->hwq.pdev->dev,
@@ -2561,7 +2561,7 @@ static int bnxt_qplib_cq_process_res_raw
*pcqe = cqe;
} else {
rq = &qp->rq;
- if (wr_id_idx > rq->hwq.max_elements) {
+ if (wr_id_idx >= rq->hwq.max_elements) {
dev_err(&cq->hwq.pdev->dev,
"QPLIB: FP: CQ Process Raw/QP1 RQ wr_id ");
dev_err(&cq->hwq.pdev->dev,
