diff options
| author | Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> | 2008-03-28 03:47:24 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-03-28 03:47:24 +0300 |
| commit | 6be8ac2fdc5e69dec53913a42312a92dbfbd4907 (patch) | |
| tree | ad0dc3bad1b36a7b1d682ee5ec8dacc1467c09f7 /net | |
| parent | 0dde3e16485dca16eb682dd59da1a598bf62e284 (diff) | |
| download | linux-6be8ac2fdc5e69dec53913a42312a92dbfbd4907.tar.xz | |
[NET]: uninline skb_pull, de-bloats a lot
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 <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/skbuff.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 3402eca768f8..cf489b6329e8 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. */ |