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authorArnaldo Carvalho de Melo <acme@redhat.com>2007-03-19 15:30:44 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:24:32 -0700
commit459a98ed881802dee55897441bc7f77af614368e (patch)
treeb81f76632d8f2e21eb91ec3d885091a98398d93e /include/linux/skbuff.h
parent4c13eb6657fe9ef7b4dc8f1a405c902e9e5234e0 (diff)
[SK_BUFF]: Introduce skb_reset_mac_header(skb)
For the common, open coded 'skb->mac.raw = skb->data' operation, so that we can later turn skb->mac.raw into a offset, reducing the size of struct sk_buff in 64bit land while possibly keeping it as a pointer on 32bit. This one touches just the most simple case, next will handle the slightly more "complex" cases. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
-rw-r--r--include/linux/skbuff.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index df229bd5f1a..748f254b50c 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -960,6 +960,11 @@ static inline void skb_reserve(struct sk_buff *skb, int len)
skb->tail += len;
}
+static inline void skb_reset_mac_header(struct sk_buff *skb)
+{
+ skb->mac.raw = skb->data;
+}
+
/*
* CPUs often take a performance hit when accessing unaligned memory
* locations. The actual performance hit varies, it can be small if the