[dpdk-stable] patch 'net/mlx5: fix memory region boundary checks' has been queued to LTS release 17.11.1

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to LTS release 17.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/03/18. So please
shout if anyone has objections.

Thanks.

	--yliu

---
>From d01327d95624923003b6e984040c8c17c06b5361 Mon Sep 17 00:00:00 2001
From: Shahaf Shuler <shahafs at mellanox.com>
Date: Thu, 25 Jan 2018 18:18:03 +0200
Subject: [PATCH] net/mlx5: fix memory region boundary checks

[ upstream commit 25f28d9d294d00a1c539d47a13c14ce282e31b09 ]

Since commit f81ec748434b ("net/mlx5: fix memory region lookup") the
Memory Region (MR) are no longer overlaps.

Comparing the end address of the MR should be exclusive, otherwise two
contiguous MRs may cause wrong matching.

Fixes: f81ec748434b ("net/mlx5: fix memory region lookup")

Signed-off-by: Xueming Li <xuemingl at mellanox.com>
Signed-off-by: Shahaf Shuler <shahafs at mellanox.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro at 6wind.com>
---
 drivers/net/mlx5/mlx5_rxtx.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
index 604f308..de5b769 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -547,7 +547,7 @@ mlx5_tx_mb2mr(struct mlx5_txq_data *txq, struct rte_mbuf *mb)
 	struct mlx5_mr *mr;
 
 	assert(i < RTE_DIM(txq->mp2mr));
-	if (likely(txq->mp2mr[i]->start <= addr && txq->mp2mr[i]->end >= addr))
+	if (likely(txq->mp2mr[i]->start <= addr && txq->mp2mr[i]->end > addr))
 		return txq->mp2mr[i]->lkey;
 	for (i = 0; (i != RTE_DIM(txq->mp2mr)); ++i) {
 		if (unlikely(txq->mp2mr[i] == NULL ||
@@ -556,7 +556,7 @@ mlx5_tx_mb2mr(struct mlx5_txq_data *txq, struct rte_mbuf *mb)
 			break;
 		}
 		if (txq->mp2mr[i]->start <= addr &&
-		    txq->mp2mr[i]->end >= addr) {
+		    txq->mp2mr[i]->end > addr) {
 			assert(txq->mp2mr[i]->lkey != (uint32_t)-1);
 			assert(rte_cpu_to_be_32(txq->mp2mr[i]->mr->lkey) ==
 			       txq->mp2mr[i]->lkey);
-- 
2.7.4