diff options
Diffstat (limited to 'net/core/skbuff.c')
| -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 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. */ |