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authorIlpo Järvinen <ilpo.jarvinen@helsinki.fi>2008-03-27 17:54:01 -0700
committerDavid S. Miller <davem@davemloft.net>2008-03-27 17:54:01 -0700
commit419ae74ecc9494e58928a5c6652f4c072f3ca744 (patch)
tree5725c6b6558d07e0c39fc98c32f68f2a7e0cf3aa /net/core/skbuff.c
parent8d3308687f7f1eaa1bb5d202d14752d5f90068eb (diff)
downloadlwn-419ae74ecc9494e58928a5c6652f4c072f3ca744.tar.gz
lwn-419ae74ecc9494e58928a5c6652f4c072f3ca744.zip
[NET]: uninline skb_trim, de-bloats
Allyesconfig (v2.6.24-mm1): -10976 209 funcs, 123 +, 11099 -, diff: -10976 --- skb_trim Without number of debug related CONFIGs (v2.6.25-rc2-mm1): -7360 192 funcs, 131 +, 7491 -, diff: -7360 --- skb_trim skb_trim | +42 Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/skbuff.c')
-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 a37127b5899c..86e5682728be 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -931,6 +931,22 @@ unsigned char *skb_pull(struct sk_buff *skb, unsigned int len)
}
EXPORT_SYMBOL(skb_pull);
+/**
+ * skb_trim - remove end from a buffer
+ * @skb: buffer to alter
+ * @len: new length
+ *
+ * Cut the length of a buffer down by removing data from the tail. If
+ * the buffer is already under the length specified it is not modified.
+ * The skb must be linear.
+ */
+void skb_trim(struct sk_buff *skb, unsigned int len)
+{
+ if (skb->len > len)
+ __skb_trim(skb, len);
+}
+EXPORT_SYMBOL(skb_trim);
+
/* Trims skb to length len. It can change skb pointers.
*/