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-rw-r--r--drivers/infiniband/hw/mlx5/qp.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index dc930ed..74ee4a4 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -2275,7 +2275,10 @@ static int set_sig_umr_wr(struct ib_send_wr *wr, struct mlx5_ib_qp *qp,
/* length of the protected region, data + protection */
region_len = wr->sg_list->length;
- if (wr->wr.sig_handover.prot)
+ if (wr->wr.sig_handover.prot &&
+ (wr->wr.sig_handover.prot->lkey != wr->sg_list->lkey ||
+ wr->wr.sig_handover.prot->addr != wr->sg_list->addr ||
+ wr->wr.sig_handover.prot->length != wr->sg_list->length))
region_len += wr->wr.sig_handover.prot->length;
/**
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