From 3eb84f49290461e2b83d6e8ee1f3f0e504340c8b Mon Sep 17 00:00:00 2001 From: YOSHIFUJI Hideaki Date: Thu, 10 Apr 2008 15:42:08 +0900 Subject: [IPV6] ADDRCONF: Uninline ipv6_addr_hash(). The function is only used in net/ipv6/addrconf.c. Signed-off-by: YOSHIFUJI Hideaki --- net/ipv6/addrconf.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'net/ipv6') diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index ed9938014cf9..b17fafc56241 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -541,6 +541,25 @@ ipv6_link_dev_addr(struct inet6_dev *idev, struct inet6_ifaddr *ifp) *ifap = ifp; } +/* + * Hash function taken from net_alias.c + */ +static u8 ipv6_addr_hash(const struct in6_addr *addr) +{ + __u32 word; + + /* + * We perform the hash function over the last 64 bits of the address + * This will include the IEEE address token on links that support it. + */ + + word = (__force u32)(addr->s6_addr32[2] ^ addr->s6_addr32[3]); + word ^= (word >> 16); + word ^= (word >> 8); + + return ((word ^ (word >> 4)) & 0x0f); +} + /* On success it returns ifp with increased reference count */ static struct inet6_ifaddr * -- cgit v1.2.2