[PATCH 4.18 049/145] RDMA/rxe: Set wqe->status correctly if an unexpected response is received

From: Greg Kroah-Hartman
Date: Fri Sep 07 2018 - 17:14:44 EST


4.18-stable review patch. If anyone has any objections, please let me know.

------------------

From: Bart Van Assche <bart.vanassche@xxxxxxx>

commit 61b717d041b1976530f68f8b539b2e3a7dd8e39c upstream.

Every function that returns COMPST_ERROR must set wqe->status to another
value than IB_WC_SUCCESS before returning COMPST_ERROR. Fix the only code
path for which this is not yet the case.

Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Reviewed-by: Yuval Shaia <yuval.shaia@xxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/infiniband/sw/rxe/rxe_comp.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/infiniband/sw/rxe/rxe_comp.c
+++ b/drivers/infiniband/sw/rxe/rxe_comp.c
@@ -276,6 +276,7 @@ static inline enum comp_state check_ack(
case IB_OPCODE_RC_RDMA_READ_RESPONSE_MIDDLE:
if (wqe->wr.opcode != IB_WR_RDMA_READ &&
wqe->wr.opcode != IB_WR_RDMA_READ_WITH_INV) {
+ wqe->status = IB_WC_FATAL_ERR;
return COMPST_ERROR;
}
reset_retry_counters(qp);