RE: [RFC PATCH net-next 4/5] bridge: vlan lwt and dst_metadata netlink support
From: Rosen, Rami <hidden>
Date: 2017-01-23 00:22:05
Hi, Roopa,
Two minor comments:
The parameter br is not used in the br_add_vlan_tunnel_info() method, it should be removed:
+static int br_add_vlan_tunnel_info(struct net_bridge *br,
+ struct net_bridge_port *p, int cmd,
+ u16 vid, u32 tun_id)
+{
+ int err;
+
+ switch (cmd) {
+ case RTM_SETLINK:
+ if (p) {
+ /* if the MASTER flag is set this will act on the global
+ * per-VLAN entry as well
+ */
+ err = nbp_vlan_tunnel_info_add(p, vid, tun_id);
+ if (err)
+ break;
+ } else {
+ return -EINVAL;
+ }
+
+ break;
+
+ case RTM_DELLINK:
+ if (p)
+ nbp_vlan_tunnel_info_delete(p, vid);
+ else
+ return -EINVAL;
+ break;
+ }
+
+ return 0;
+}
+
The parameter br is used inside br_process_vlan_tunnel_info() only in the two
Cases, when br_add_vlan_tunnel_info() is invoked. Since we saw earlier that it should be removed from br_add_vlan_tunnel_info(), it should also be removed from br_process_vlan_tunnel_info() as it is not needed anymore:
+static int br_process_vlan_tunnel_info(struct net_bridge *br,
+ struct net_bridge_port *p, int cmd,
+ struct vtunnel_info *tinfo_curr,
+ struct vtunnel_info *tinfo_last) {
+ int t, v;
+ int err;
+
+ if (tinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
+ if (tinfo_last->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN)
+ return -EINVAL;
+ memcpy(tinfo_last, tinfo_curr, sizeof(struct vtunnel_info));
+ } else if (tinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_END) {
+ if (!(tinfo_last->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN))
+ return -EINVAL;
+ if ((tinfo_curr->vid - tinfo_last->vid) !=
+ (tinfo_curr->tunid - tinfo_last->tunid))
+ return -EINVAL;
+ /* XXX: tun id and vlan id attrs must be same
+ */
+ t = tinfo_last->tunid;
+ for (v = tinfo_last->vid; v <= tinfo_curr->vid; v++) {
+ err = br_add_vlan_tunnel_info(br, p, cmd,
+ v, t);
+ if (err)
+ return err;
+ t++;
+ }
+ memset(tinfo_last, 0, sizeof(struct vtunnel_info));
+ memset(tinfo_curr, 0, sizeof(struct vtunnel_info));
+ } else {
+ err = br_add_vlan_tunnel_info(br, p, cmd,
+ tinfo_curr->vid,
+ tinfo_curr->tunid);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
Regards,
Rami Rosen