net: rate-limit warn-bad-offload splats.

If one does do something unfortunate and allow a bad offload bug into the kernel, this the skb_warn_bad_offload can effectively live-lock the system, filling the logs with the same error over and over. Add rate limitation to this so that box remains otherwise functional in this case. Signed-off-by: Ben Greear <[email protected]> Signed-off-by: David S. Miller <[email protected]>
akvadrako · Apr 19, 2013 · c846ad9 · c846ad9
1 parent b261c20
commit c846ad9
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/net/core/dev.c b/net/core/dev.c
@@ -2148,6 +2148,9 @@ static void skb_warn_bad_offload(const struct sk_buff *skb)
 	struct net_device *dev = skb->dev;
 	const char *driver = "";
 
+	if (!net_ratelimit())
+		return;
+
 	if (dev && dev->dev.parent)
 		driver = dev_driver_string(dev->dev.parent);