aboutsummaryrefslogtreecommitdiffstats
path: root/net/core
diff options
context:
space:
mode:
Diffstat (limited to 'net/core')
-rw-r--r--net/core/skbuff.c16
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}
879EXPORT_SYMBOL(skb_put); 879EXPORT_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 */
891unsigned char *skb_pull(struct sk_buff *skb, unsigned int len)
892{
893 return unlikely(len > skb->len) ? NULL : __skb_pull(skb, len);
894}
895EXPORT_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