-#define XFRM_FLOWCACHE_HASH_SIZE 1024
-
-static inline u32 __flow_hash4(struct flowi *fl)
-{
- u32 hash = fl->fl4_src ^ fl->fl_ip_sport;
-
- hash = ((hash & 0xF0F0F0F0) >> 4) | ((hash & 0x0F0F0F0F) << 4);
-
- hash ^= fl->fl4_dst ^ fl->fl_ip_dport;
- hash ^= (hash >> 10);
- hash ^= (hash >> 20);
- return hash & (XFRM_FLOWCACHE_HASH_SIZE-1);
-}
-
-static inline u32 __flow_hash6(struct flowi *fl)
-{
- u32 hash = fl->fl6_src.s6_addr32[2] ^
- fl->fl6_src.s6_addr32[3] ^
- fl->fl_ip_sport;
-
- hash = ((hash & 0xF0F0F0F0) >> 4) | ((hash & 0x0F0F0F0F) << 4);
-
- hash ^= fl->fl6_dst.s6_addr32[2] ^
- fl->fl6_dst.s6_addr32[3] ^
- fl->fl_ip_dport;
- hash ^= (hash >> 10);
- hash ^= (hash >> 20);
- return hash & (XFRM_FLOWCACHE_HASH_SIZE-1);
-}
-
-static inline u32 flow_hash(struct flowi *fl, unsigned short family)
-{
- switch (family) {
- case AF_INET:
- return __flow_hash4(fl);
- case AF_INET6:
- return __flow_hash6(fl);
- }
- return 0; /*XXX*/
-}
-