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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Guangbin Huang <huangguangbin2@huawei.com>,
        Paolo Abeni <pabeni@redhat.com>
Subject: [PATCH 5.15 841/913] net: hns3: fix software vlan talbe of vlan 0 inconsistent with hardware
Date:   Tue,  5 Apr 2022 09:31:43 +0200
Message-Id: <20220405070405.038514426@linuxfoundation.org>
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From: Guangbin Huang <huangguangbin2@huawei.com>

commit 7ed258f12ec5ce855f15cdfb5710361dc82fe899 upstream.

When user delete vlan 0, as driver will not delete vlan 0 for hardware in
function hclge_set_vlan_filter_hw(), so vlan 0 in software vlan talbe should
not be deleted.

Fixes: fe4144d47eef ("net: hns3: sync VLAN filter entries when kill VLAN ID failed")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -10595,11 +10595,11 @@ int hclge_set_vlan_filter(struct hnae3_h
 	}
 
 	if (!ret) {
-		if (is_kill)
-			hclge_rm_vport_vlan_table(vport, vlan_id, false);
-		else
+		if (!is_kill)
 			hclge_add_vport_vlan_table(vport, vlan_id,
 						   writen_to_tbl);
+		else if (is_kill && vlan_id != 0)
+			hclge_rm_vport_vlan_table(vport, vlan_id, false);
 	} else if (is_kill) {
 		/* when remove hw vlan filter failed, record the vlan id,
 		 * and try to remove it from hw later, to be consistence