diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2006-11-16 11:41:18 +0100 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-12-03 06:23:41 +0100 |
| commit | f9214b2627fb8582af1986afc4aed5942086a535 (patch) | |
| tree | 13bd40def90b1bcf77e2c79a4fcabf60a4d5d444 /include/net/ip_vs.h | |
| parent | [NET]: IP header modifier helpers annotations. (diff) | |
| download | linux-f9214b2627fb8582af1986afc4aed5942086a535.tar.xz linux-f9214b2627fb8582af1986afc4aed5942086a535.zip | |
[NET]: ipvs checksum annotations.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ip_vs.h')
| -rw-r--r-- | include/net/ip_vs.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h index fedea8db156a..672564e5a81d 100644 --- a/include/net/ip_vs.h +++ b/include/net/ip_vs.h @@ -990,12 +990,18 @@ extern void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp, extern __sum16 ip_vs_checksum_complete(struct sk_buff *skb, int offset); -static inline u16 ip_vs_check_diff(u32 old, u32 new, u16 oldsum) +static inline __wsum ip_vs_check_diff4(__be32 old, __be32 new, __wsum oldsum) { - u32 diff[2] = { old, new }; + __be32 diff[2] = { ~old, new }; - return csum_fold(csum_partial((char *) diff, sizeof(diff), - oldsum ^ 0xFFFF)); + return csum_partial((char *) diff, sizeof(diff), oldsum); +} + +static inline __wsum ip_vs_check_diff2(__be16 old, __be16 new, __wsum oldsum) +{ + __be16 diff[2] = { ~old, new }; + + return csum_partial((char *) diff, sizeof(diff), oldsum); } #endif /* __KERNEL__ */ |