brcompat: add stp and forwarding delay call stubs to brcompat layer

From: Patrick Mullaney <pm.mullaney@gmail.com>

libvirt and various startup scripts like to set these 2 attributes
---

 datapath/brcompat.c |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+), 0 deletions(-)


diff --git a/datapath/brcompat.c b/datapath/brcompat.c
index f23db93..eefb7c3 100644
--- a/datapath/brcompat.c
+++ b/datapath/brcompat.c
@@ -310,6 +310,19 @@ nla_put_failure:
 	return -ENOMEM;
 }
 
+static int brc_set_bridge_forward_delay(struct net_device *dev,
+					unsigned long delay)
+{
+	printk("attempting to set bridge forward delay %u\n", delay);
+	return 0;
+}
+
+static int brc_stp_set_enabled(struct net_device *dev, unsigned long state)
+{
+	printk("attempting to set bridge STP to %u\n", state);
+	return 0;
+}
+
 /* Legacy ioctl's through SIOCDEVPRIVATE.  Called with rtnl_lock. */
 static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 {
@@ -333,6 +346,12 @@ static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	case BRCTL_GET_FDB_ENTRIES:
 		return brc_get_fdb_entries(dev, (void __user *)args[1],
 					   args[2], args[3]);
+	case BRCTL_SET_BRIDGE_FORWARD_DELAY:
+		return brc_set_bridge_forward_delay(dev, args[1]);
+
+	case BRCTL_SET_BRIDGE_STP_STATE:
+                return brc_stp_set_enabled(dev, args[1]);
+
 	}
 
 	return -EOPNOTSUPP;