diff options
| author |   Michał Mirosław <mirq-linux@rere.qmqm.pl> | 2010-12-14 15:24:08 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2010-12-16 14:43:14 -0800 |
| commit | 04fb451eff978ca059399eab83d5594b073caf6f (patch) | |
| tree | 6ef0da9466839c475ab939d55504d57c62cd48c6 /include/linux/skbuff.h | |
| parent | tcp: relax tcp_paws_check() (diff) | |
| download | linux-dev-04fb451eff978ca059399eab83d5594b073caf6f.tar.xz linux-dev-04fb451eff978ca059399eab83d5594b073caf6f.zip | |
net: Introduce skb_checksum_start_offset()
Introduce skb_checksum_start_offset() to replace repetitive calculation.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 4c4bec6316d9..20ec0a64cb9f 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1355,6 +1355,11 @@ static inline void skb_set_mac_header(struct sk_buff *skb, const int offset) } #endif /* NET_SKBUFF_DATA_USES_OFFSET */ +static inline int skb_checksum_start_offset(const struct sk_buff *skb) +{ + return skb->csum_start - skb_headroom(skb); +} + static inline int skb_transport_offset(const struct sk_buff *skb) { return skb_transport_header(skb) - skb->data; |