linux-kernel - [PATCH AUTOSEL 5.8 13/24] net: dsa: felix: fix incorrect action offsets for VCAP IS2

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Message-Id: <20201012190239.3279198-13-sashal@kernel.org>
Date:   Mon, 12 Oct 2020 15:02:28 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Vladimir Oltean <vladimir.oltean@....com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 5.8 13/24] net: dsa: felix: fix incorrect action offsets for VCAP IS2

From: Vladimir Oltean <vladimir.oltean@....com>

[ Upstream commit 460e985ea07ec23d46af257e84e57b5409576577 ]

The port mask width was larger than the actual number of ports, and
therefore, all fields following this one were also shifted by the number
of excess bits. But the driver doesn't use the REW_OP, SMAC_REPLACE_ENA
or ACL_ID bits from the action vector, so the bug was inconsequential.

Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/dsa/ocelot/felix_vsc9959.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c
index 7c167a394b762..885a59c97ff23 100644
--- a/drivers/net/dsa/ocelot/felix_vsc9959.c
+++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
@@ -647,12 +647,12 @@ struct vcap_field vsc9959_vcap_is2_actions[] = {
 	[VCAP_IS2_ACT_POLICE_ENA]		= {  9,  1},
 	[VCAP_IS2_ACT_POLICE_IDX]		= { 10,  9},
 	[VCAP_IS2_ACT_POLICE_VCAP_ONLY]		= { 19,  1},
-	[VCAP_IS2_ACT_PORT_MASK]		= { 20, 11},
-	[VCAP_IS2_ACT_REW_OP]			= { 31,  9},
-	[VCAP_IS2_ACT_SMAC_REPLACE_ENA]		= { 40,  1},
-	[VCAP_IS2_ACT_RSV]			= { 41,  2},
-	[VCAP_IS2_ACT_ACL_ID]			= { 43,  6},
-	[VCAP_IS2_ACT_HIT_CNT]			= { 49, 32},
+	[VCAP_IS2_ACT_PORT_MASK]		= { 20,  6},
+	[VCAP_IS2_ACT_REW_OP]			= { 26,  9},
+	[VCAP_IS2_ACT_SMAC_REPLACE_ENA]		= { 35,  1},
+	[VCAP_IS2_ACT_RSV]			= { 36,  2},
+	[VCAP_IS2_ACT_ACL_ID]			= { 38,  6},
+	[VCAP_IS2_ACT_HIT_CNT]			= { 44, 32},
 };
 
 static const struct vcap_props vsc9959_vcap_props[] = {
-- 
2.25.1