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yaml
---
r: 90417
b: refs/heads/master
c: 6be8ac2
h: refs/heads/master
i:
  90415: cecec6b
v: v3
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Ilpo Järvinen authored and David S. Miller committed Mar 28, 2008
1 parent 41acef9 commit aabfcf8
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Showing 3 changed files with 18 additions and 16 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 0dde3e16485dca16eb682dd59da1a598bf62e284
refs/heads/master: 6be8ac2fdc5e69dec53913a42312a92dbfbd4907
16 changes: 1 addition & 15 deletions trunk/include/linux/skbuff.h
Original file line number Diff line number Diff line change
Expand Up @@ -927,28 +927,14 @@ static inline unsigned char *skb_push(struct sk_buff *skb, unsigned int len)
return skb->data;
}

extern unsigned char *skb_pull(struct sk_buff *skb, unsigned int len);
static inline unsigned char *__skb_pull(struct sk_buff *skb, unsigned int len)
{
skb->len -= len;
BUG_ON(skb->len < skb->data_len);
return skb->data += len;
}

/**
* 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.
*/
static inline unsigned char *skb_pull(struct sk_buff *skb, unsigned int len)
{
return unlikely(len > skb->len) ? NULL : __skb_pull(skb, len);
}

extern unsigned char *__pskb_pull_tail(struct sk_buff *skb, int delta);

static inline unsigned char *__pskb_pull(struct sk_buff *skb, unsigned int len)
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16 changes: 16 additions & 0 deletions trunk/net/core/skbuff.c
Original file line number Diff line number Diff line change
Expand Up @@ -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.
*/

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