linux-kernel - [PATCH 4.20 003/127] mlxsw: spectrum_switchdev: Set PVID correctly during VLAN deletion

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Message-Id: <20190124190212.171536547@linuxfoundation.org>
Date:   Thu, 24 Jan 2019 20:19:09 +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, Ido Schimmel <idosch@...lanox.com>,
        Jiri Pirko <jiri@...lanox.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.20 003/127] mlxsw: spectrum_switchdev: Set PVID correctly during VLAN deletion

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

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

From: Ido Schimmel <idosch@...lanox.com>

[ Upstream commit 674bed5df4cab8f96d04f7b99608883a48f9226b ]

When a VLAN is deleted from a bridge port we should not change the PVID
unless the deleted VLAN is the PVID.

Fixes: fe9ccc785de5 ("mlxsw: spectrum_switchdev: Don't batch VLAN operations")
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
Acked-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -1816,7 +1816,7 @@ static void
 mlxsw_sp_bridge_port_vlan_del(struct mlxsw_sp_port *mlxsw_sp_port,
 			      struct mlxsw_sp_bridge_port *bridge_port, u16 vid)
 {
-	u16 pvid = mlxsw_sp_port->pvid == vid ? 0 : vid;
+	u16 pvid = mlxsw_sp_port->pvid == vid ? 0 : mlxsw_sp_port->pvid;
 	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
 
 	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);