From 6be8ac2fdc5e69dec53913a42312a92dbfbd4907 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= Date: Thu, 27 Mar 2008 17:47:24 -0700 Subject: [NET]: uninline skb_pull, de-bloats a lot MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Allyesconfig (v2.6.24-mm1): -28162 354 funcs, 3005 +, 31167 -, diff: -28162 --- skb_pull Without number of debug related CONFIGs (v2.6.25-rc2-mm1): -9697 338 funcs, 221 +, 9918 -, diff: -9697 --- skb_pull skb_pull | +44 Signed-off-by: Ilpo Järvinen Signed-off-by: David S. Miller --- net/core/skbuff.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'net/core/skbuff.c') diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 3402eca768f..cf489b6329e 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -878,6 +878,22 @@ unsigned char *skb_put(struct sk_buff *skb, unsigned int len) } EXPORT_SYMBOL(skb_put); +/** + * skb_pull - remove data from the start of a buffer + * @skb: buffer to use + * @len: amount of data to remove + * + * This function removes data from the start of a buffer, returning + * the memory to the headroom. A pointer to the next data in the buffer + * is returned. Once the data has been pulled future pushes will overwrite + * the old data. + */ +unsigned char *skb_pull(struct sk_buff *skb, unsigned int len) +{ + return unlikely(len > skb->len) ? NULL : __skb_pull(skb, len); +} +EXPORT_SYMBOL(skb_pull); + /* Trims skb to length len. It can change skb pointers. */ -- cgit v1.2.3