linux-kernel - [PATCH 3.19 016/123] net/mlx4_en: Fix off-by-one in ethtool statistics display

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Date:	Tue, 24 Mar 2015 16:45:25 +0100
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Eran Ben Elisha <eranbe@...lanox.com>,
	Hadar Hen Zion <hadarh@...lanox.com>,
	Or Gerlitz <ogerlitz@...lanox.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 3.19 016/123] net/mlx4_en: Fix off-by-one in ethtool statistics display

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

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

From: Eran Ben Elisha <eranbe@...lanox.com>

[ Upstream commit a16f3565703cfc3094938fb3c979cbb90f6d9eb4 ]

NUM_PORT_STATS was 9 instead of 10, which caused off-by-one bug when
displaying the statistics starting from tx_chksum_offload in ethtool.

Fixes: f8c6455bb04b ('net/mlx4_en: Extend checksum offloading by CHECKSUM COMPLETE')
Signed-off-by: Eran Ben Elisha <eranbe@...lanox.com>
Signed-off-by: Hadar Hen Zion <hadarh@...lanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@...lanox.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx4/mlx4_en.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -451,7 +451,7 @@ struct mlx4_en_port_stats {
 	unsigned long rx_chksum_none;
 	unsigned long rx_chksum_complete;
 	unsigned long tx_chksum_offload;
-#define NUM_PORT_STATS		9
+#define NUM_PORT_STATS		10
 };
 
 struct mlx4_en_perf_stats {


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