X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fnet%2Fbridge%2Fbr_stp.c;h=eff69cb270d229746b64b6373c276faf40596a11;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hp=5f3f6455317924e0e74281d23075d2af68d72d73;hpb=e09b41010ba33a20a87472ee821fa407a5b8da36;p=kvmfornfv.git

diff --git a/kernel/net/bridge/br_stp.c b/kernel/net/bridge/br_stp.c
index 5f3f64553..eff69cb27 100644
--- a/kernel/net/bridge/br_stp.c
+++ b/kernel/net/bridge/br_stp.c
@@ -567,6 +567,14 @@ int br_set_max_age(struct net_bridge *br, unsigned long val)
 
 }
 
+/* Set time interval that dynamic forwarding entries live
+ * For pure software bridge, allow values outside the 802.1
+ * standard specification for special cases:
+ *  0 - entry never ages (all permanant)
+ *  1 - entry disappears (no persistance)
+ *
+ * Offloaded switch entries maybe more restrictive
+ */
 int br_set_ageing_time(struct net_bridge *br, u32 ageing_time)
 {
 	struct switchdev_attr attr = {
@@ -577,11 +585,8 @@ int br_set_ageing_time(struct net_bridge *br, u32 ageing_time)
 	unsigned long t = clock_t_to_jiffies(ageing_time);
 	int err;
 
-	if (t < BR_MIN_AGEING_TIME || t > BR_MAX_AGEING_TIME)
-		return -ERANGE;
-
 	err = switchdev_port_attr_set(br->dev, &attr);
-	if (err)
+	if (err && err != -EOPNOTSUPP)
 		return err;
 
 	br->ageing_time = t;