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authorVladimir Oltean2022-02-15 19:02:12 +0200
committerDavid S. Miller2022-02-16 11:21:04 +0000
commit8d23a54f5beea59b560855fb571e5d73d783e0b4 (patch)
tree146a1590d46062778c5dd7d2d4acc78916afd2bb /net/bridge/br_vlan.c
parent27c5f74c7ba7b782f9694589ae733ca2ca8f76cc (diff)
net: bridge: switchdev: differentiate new VLANs from changed ones
br_switchdev_port_vlan_add() currently emits a SWITCHDEV_PORT_OBJ_ADD event with a SWITCHDEV_OBJ_ID_PORT_VLAN for 2 distinct cases: - a struct net_bridge_vlan got created - an existing struct net_bridge_vlan was modified This makes it impossible for switchdev drivers to properly balance PORT_OBJ_ADD with PORT_OBJ_DEL events, so if we want to allow that to happen, we must provide a way for drivers to distinguish between a VLAN with changed flags and a new one. Annotate struct switchdev_obj_port_vlan with a "bool changed" that distinguishes the 2 cases above. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_vlan.c')
-rw-r--r--net/bridge/br_vlan.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 0ad55a1add0e..7557e90b60e1 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -109,7 +109,7 @@ static int __vlan_vid_add(struct net_device *dev, struct net_bridge *br,
/* Try switchdev op first. In case it is not supported, fallback to
* 8021q add.
*/
- err = br_switchdev_port_vlan_add(dev, v->vid, flags, extack);
+ err = br_switchdev_port_vlan_add(dev, v->vid, flags, false, extack);
if (err == -EOPNOTSUPP)
return vlan_vid_add(dev, br->vlan_proto, v->vid);
v->priv_flags |= BR_VLFLAG_ADDED_BY_SWITCHDEV;
@@ -303,7 +303,7 @@ static int __vlan_add(struct net_bridge_vlan *v, u16 flags,
} else {
if (br_vlan_should_use(v)) {
err = br_switchdev_port_vlan_add(dev, v->vid, flags,
- extack);
+ false, extack);
if (err && err != -EOPNOTSUPP)
goto out;
}
@@ -714,7 +714,7 @@ static int br_vlan_add_existing(struct net_bridge *br,
*/
if (becomes_brentry || would_change) {
err = br_switchdev_port_vlan_add(br->dev, vlan->vid, flags,
- extack);
+ would_change, extack);
if (err && err != -EOPNOTSUPP)
return err;
}
@@ -1289,8 +1289,8 @@ int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags,
if (would_change) {
/* Pass the flags to the hardware bridge */
- ret = br_switchdev_port_vlan_add(port->dev, vid,
- flags, extack);
+ ret = br_switchdev_port_vlan_add(port->dev, vid, flags,
+ true, extack);
if (ret && ret != -EOPNOTSUPP)
return ret;
}