@@ -769,15 +769,22 @@ EXPORT_SYMBOL(__kfree_skb);
* Drop a reference to the buffer and free it if the usage count has
* hit zero. Meanwhile, pass the drop reason to 'kfree_skb'
* tracepoint.
+ *
+ * When the reason is SKB_NOT_DROPPED, it means that the packet is
+ * freed normally, and the event 'consume_skb' will be triggered.
*/
void kfree_skb_reason(struct sk_buff *skb, enum skb_drop_reason reason)
{
if (!skb_unref(skb))
return;
- DEBUG_NET_WARN_ON_ONCE(reason <= 0 || reason >= SKB_DROP_REASON_MAX);
+ DEBUG_NET_WARN_ON_ONCE(reason < 0 || reason >= SKB_DROP_REASON_MAX);
+
+ if (reason)
+ trace_kfree_skb(skb, __builtin_return_address(0), reason);
+ else
+ trace_consume_skb(skb);
- trace_kfree_skb(skb, __builtin_return_address(0), reason);
__kfree_skb(skb);
}
EXPORT_SYMBOL(kfree_skb_reason);