--- zzzz-none-000/linux-3.10.107/net/bridge/br_stp_timer.c	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/net/bridge/br_stp_timer.c	2021-11-10 11:53:56.000000000 +0000
@@ -110,7 +110,7 @@
 	if (!br_is_root_bridge(br) && (br->dev->flags & IFF_UP)) {
 		br_transmit_tcn(br);
 
-		mod_timer(&br->tcn_timer,jiffies + br->bridge_hello_time);
+		mod_timer(&br->tcn_timer, jiffies + br->bridge_hello_time);
 	}
 	spin_unlock(&br->lock);
 }