Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...

[pandora-kernel.git] / net / core / skbuff.c

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 4e22e3a..d49ef83 100644 (file)
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -449,6 +449,18 @@ void kfree_skb(struct sk_buff *skb)
        __kfree_skb(skb);
 }
 
+/**
+ *     skb_recycle_check - check if skb can be reused for receive
+ *     @skb: buffer
+ *     @skb_size: minimum receive buffer size
+ *
+ *     Checks that the skb passed in is not shared or cloned, and
+ *     that it is linear and its head portion at least as large as
+ *     skb_size so that it can be recycled as a receive buffer.
+ *     If these conditions are met, this function does any necessary
+ *     reference count dropping and cleans up the skbuff as if it
+ *     just came from __alloc_skb().
+ */
 int skb_recycle_check(struct sk_buff *skb, int skb_size)
 {
        struct skb_shared_info *shinfo;
@@ -474,8 +486,8 @@ int skb_recycle_check(struct sk_buff *skb, int skb_size)
        shinfo->frag_list = NULL;
 
        memset(skb, 0, offsetof(struct sk_buff, tail));
-       skb_reset_tail_pointer(skb);
        skb->data = skb->head + NET_SKB_PAD;
+       skb_reset_tail_pointer(skb);
 
        return 1;
 }