From af01754f9e3c553a2ee63b4693c79a3956e230ab Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Tue, 10 Aug 2021 00:59:47 +0200 Subject: net: dsa: microchip: ksz8795: Fix VLAN untagged flag change on deletion When a VLAN is deleted from a port, the flags in struct switchdev_obj_port_vlan are always 0. ksz8_port_vlan_del() copies the BRIDGE_VLAN_INFO_UNTAGGED flag to the port's Tag Removal flag, and therefore always clears it. In case there are multiple VLANs configured as untagged on this port - which seems useless, but is allowed - deleting one of them changes the remaining VLANs to be tagged. It's only ever necessary to change this flag when a VLAN is added to the port, so leave it unchanged in ksz8_port_vlan_del(). Fixes: e66f840c08a2 ("net: dsa: ksz: Add Microchip KSZ8795 DSA driver") Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/dsa/microchip/ksz8795.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers/net/dsa/microchip/ksz8795.c') diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c index 29a18058d1ee..af3744d8b6cf 100644 --- a/drivers/net/dsa/microchip/ksz8795.c +++ b/drivers/net/dsa/microchip/ksz8795.c @@ -1208,7 +1208,6 @@ static int ksz8_port_vlan_add(struct dsa_switch *ds, int port, static int ksz8_port_vlan_del(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan) { - bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; struct ksz_device *dev = ds->priv; u16 data, pvid; u8 fid, member, valid; @@ -1219,8 +1218,6 @@ static int ksz8_port_vlan_del(struct dsa_switch *ds, int port, ksz_pread16(dev, port, REG_PORT_CTRL_VID, &pvid); pvid = pvid & 0xFFF; - ksz_port_cfg(dev, port, P_TAG_CTRL, PORT_REMOVE_TAG, untagged); - ksz8_r_vlan_table(dev, vlan->vid, &data); ksz8_from_vlan(dev, data, &fid, &member, &valid); -- cgit v1.2.3