net: Discard and warn about LRO'd skbs received for forwarding

[linux-2.6] / net / core / skbuff.c

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 3e18f8525e82706e37f0cfcc8c30fb3c3e3db43c..2df012be973d4f580f2f6733c297e6cc6f5ad9cb 100644 (file)
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2583,6 +2583,13 @@ bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off)
        return true;
 }
 
+void __skb_warn_lro_forwarding(const struct sk_buff *skb)
+{
+       if (net_ratelimit())
+               pr_warning("%s: received packets cannot be forwarded"
+                          " while LRO is enabled\n", skb->dev->name);
+}
+
 EXPORT_SYMBOL(___pskb_trim);
 EXPORT_SYMBOL(__kfree_skb);
 EXPORT_SYMBOL(kfree_skb);
@@ -2616,6 +2623,7 @@ EXPORT_SYMBOL(skb_seq_read);
 EXPORT_SYMBOL(skb_abort_seq_read);
 EXPORT_SYMBOL(skb_find_text);
 EXPORT_SYMBOL(skb_append_datato_frags);
+EXPORT_SYMBOL(__skb_warn_lro_forwarding);
 
 EXPORT_SYMBOL_GPL(skb_to_sgvec);
 EXPORT_SYMBOL_GPL(skb_cow_data);