[NET]: Add skb->truesize assertion checking.

[deliverable/linux.git] / net / core / skbuff.c

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 09464fa8d72f8b10c881b44678e8aa1084a3bcfb..fb3770f9c09405f3dce34e2b429e74d4a9761508 100644 (file)
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -112,6 +112,14 @@ void skb_under_panic(struct sk_buff *skb, int sz, void *here)
        BUG();
 }
 
+void skb_truesize_bug(struct sk_buff *skb)
+{
+       printk(KERN_ERR "SKB BUG: Invalid truesize (%u) "
+              "len=%u, sizeof(sk_buff)=%Zd\n",
+              skb->truesize, skb->len, sizeof(struct sk_buff));
+}
+EXPORT_SYMBOL(skb_truesize_bug);
+
 /*     Allocate a new skbuff. We do this ourselves so we can fill in a few
  *     'private' fields and also do memory statistics to find all the
  *     [BEEP] leaks.