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-rw-r--r--include/net/ip_vs.h16
1 files changed, 11 insertions, 5 deletions
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 903108e583f8..672564e5a81d 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -988,14 +988,20 @@ extern int ip_vs_make_skb_writable(struct sk_buff **pskb, int len);
988extern void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp, 988extern void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
989 struct ip_vs_conn *cp, int dir); 989 struct ip_vs_conn *cp, int dir);
990 990
991extern u16 ip_vs_checksum_complete(struct sk_buff *skb, int offset); 991extern __sum16 ip_vs_checksum_complete(struct sk_buff *skb, int offset);
992 992
993static inline u16 ip_vs_check_diff(u32 old, u32 new, u16 oldsum) 993static inline __wsum ip_vs_check_diff4(__be32 old, __be32 new, __wsum oldsum)
994{ 994{
995 u32 diff[2] = { old, new }; 995 __be32 diff[2] = { ~old, new };
996 996
997 return csum_fold(csum_partial((char *) diff, sizeof(diff), 997 return csum_partial((char *) diff, sizeof(diff), oldsum);
998 oldsum ^ 0xFFFF)); 998}
999
1000static inline __wsum ip_vs_check_diff2(__be16 old, __be16 new, __wsum oldsum)
1001{
1002 __be16 diff[2] = { ~old, new };
1003
1004 return csum_partial((char *) diff, sizeof(diff), oldsum);
999} 1005}
1000 1006
1001#endif /* __KERNEL__ */ 1007#endif /* __KERNEL__ */