linux-kernel - [PATCH 5.2 102/124] net: aquantia: fix removal of vlan 0

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Message-Id: <20190919214822.916609969@linuxfoundation.org>
Date:   Fri, 20 Sep 2019 00:03:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Dmitry Bogdanov <dmitry.bogdanov@...antia.com>,
        Igor Russkikh <igor.russkikh@...antia.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.2 102/124] net: aquantia: fix removal of vlan 0

From: Dmitry Bogdanov <dmitry.bogdanov@...antia.com>

[ Upstream commit 6fdc060d7476ef73c8029b652d252c1a7b4de948 ]

Due to absence of checking against the rx flow rule when vlan 0 is being
removed, the other rule could be removed instead of the rule with vlan 0

Fixes: 7975d2aff5afb ("net: aquantia: add support of rx-vlan-filter offload")
Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@...antia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@...antia.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/aquantia/atlantic/aq_filters.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_filters.c b/drivers/net/ethernet/aquantia/atlantic/aq_filters.c
index 2c1111a7fc435..3dbf3ff1c4506 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_filters.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_filters.c
@@ -431,7 +431,8 @@ int aq_del_fvlan_by_vlan(struct aq_nic_s *aq_nic, u16 vlan_id)
 		if (be16_to_cpu(rule->aq_fsp.h_ext.vlan_tci) == vlan_id)
 			break;
 	}
-	if (rule && be16_to_cpu(rule->aq_fsp.h_ext.vlan_tci) == vlan_id) {
+	if (rule && rule->type == aq_rx_filter_vlan &&
+	    be16_to_cpu(rule->aq_fsp.h_ext.vlan_tci) == vlan_id) {
 		struct ethtool_rxnfc cmd;
 
 		cmd.fs.location = rule->aq_fsp.location;
-- 
2.20.1