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authorIlpo Järvinen <ilpo.jarvinen@helsinki.fi>2008-03-27 17:43:41 -0700
committerDavid S. Miller <davem@davemloft.net>2008-03-27 17:43:41 -0700
commit0dde3e16485dca16eb682dd59da1a598bf62e284 (patch)
tree9b3f3f1b54286ecf62e3101de104915a315a53c7 /net/core/skbuff.c
parent4f95165d4bf6369d57052d60cc0266c569c6b077 (diff)
[NET]: uninline skb_put, de-bloats a lot
Allyesconfig (v2.6.24-mm1): ~500 files changed ... 869 funcs, 198 +, 111003 -, diff: -110805 --- skb_put skb_put | +104 Without number of debug related CONFIGs (v2.6.25-rc2-mm1): -60744 855 funcs, 861 +, 61605 -, diff: -60744 --- skb_put skb_put | +57 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.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 0d0fd28a904..3402eca768f 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -857,6 +857,27 @@ free_skb:
return err;
}
+/**
+ * skb_put - add data to a buffer
+ * @skb: buffer to use
+ * @len: amount of data to add
+ *
+ * This function extends the used data area of the buffer. If this would
+ * exceed the total buffer size the kernel will panic. A pointer to the
+ * first byte of the extra data is returned.
+ */
+unsigned char *skb_put(struct sk_buff *skb, unsigned int len)
+{
+ unsigned char *tmp = skb_tail_pointer(skb);
+ SKB_LINEAR_ASSERT(skb);
+ skb->tail += len;
+ skb->len += len;
+ if (unlikely(skb->tail > skb->end))
+ skb_over_panic(skb, len, __builtin_return_address(0));
+ return tmp;
+}
+EXPORT_SYMBOL(skb_put);
+
/* Trims skb to length len. It can change skb pointers.
*/