From patchwork Tue Sep 23 07:36:01 2008 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: : net: Add skb_queue_is_last(). Date: Mon, 22 Sep 2008 21:36:01 -0000 From: David Miller X-Patchwork-Id: 1023 Message-Id: <20080923.003601.243492100.davem@davemloft.net> To: netdev@vger.kernel.org net: Add skb_queue_is_last(). Several bits of code want to know "is this the last SKB in a queue", and all of them implement this by hand. Provide an common interface to make this check. Signed-off-by: David S. Miller --- include/linux/skbuff.h | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 4a144e8..3a5838d 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -473,6 +473,19 @@ static inline int skb_queue_empty(const struct sk_buff_head *list) } /** + * skb_queue_is_last - check if skb is the last entry in the queue + * @list: queue head + * @skb: buffer + * + * Returns true if @skb is the last buffer on the list. + */ +static inline bool skb_queue_is_last(const struct sk_buff_head *list, + const struct sk_buff *skb) +{ + return (skb->next == (struct sk_buff *) list); +} + +/** * skb_get - reference buffer * @skb: buffer to reference *