diff options
Diffstat (limited to 'net/core')
-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) | |||
878 | } | 878 | } |
879 | EXPORT_SYMBOL(skb_put); | 879 | EXPORT_SYMBOL(skb_put); |
880 | 880 | ||
881 | /** | ||
882 | * skb_pull - remove data from the start of a buffer | ||
883 | * @skb: buffer to use | ||
884 | * @len: amount of data to remove | ||
885 | * | ||
886 | * This function removes data from the start of a buffer, returning | ||
887 | * the memory to the headroom. A pointer to the next data in the buffer | ||
888 | * is returned. Once the data has been pulled future pushes will overwrite | ||
889 | * the old data. | ||
890 | */ | ||
891 | unsigned char *skb_pull(struct sk_buff *skb, unsigned int len) | ||
892 | { | ||
893 | return unlikely(len > skb->len) ? NULL : __skb_pull(skb, len); | ||
894 | } | ||
895 | EXPORT_SYMBOL(skb_pull); | ||
896 | |||
881 | /* Trims skb to length len. It can change skb pointers. | 897 | /* Trims skb to length len. It can change skb pointers. |
882 | */ | 898 | */ |
883 | 899 | ||