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ipv6 Use get_hash_from_flowi6 for rt6 hash

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In rt6_info_hash_nhsfn replace the custom hashing over flowi6 that is
using xor with a call to common function get_hash_from_flowi6.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2015-09-23 14:13:35 -07:00 committed by David S. Miller
parent 227b9e8708
commit 644d0e6569
1 changed files with 1 additions and 25 deletions
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26
net/ipv6/route.c
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@ -421,31 +421,7 @@ static bool rt6_check_expired(const struct rt6_info *rt)
static int rt6_info_hash_nhsfn(unsigned int candidate_count,
const struct flowi6 *fl6)
{
unsigned int val = fl6->flowi6_proto;
val ^= ipv6_addr_hash(&fl6->daddr);
val ^= ipv6_addr_hash(&fl6->saddr);
/* Work only if this not encapsulated */
switch (fl6->flowi6_proto) {
case IPPROTO_UDP:
case IPPROTO_TCP:
case IPPROTO_SCTP:
val ^= (__force u16)fl6->fl6_sport;
val ^= (__force u16)fl6->fl6_dport;
break;
case IPPROTO_ICMPV6:
val ^= (__force u16)fl6->fl6_icmp_type;
val ^= (__force u16)fl6->fl6_icmp_code;
break;
}
/* RFC6438 recommands to use flowlabel */
val ^= (__force u32)fl6->flowlabel;
/* Perhaps, we need to tune, this function? */
val = val ^ (val >> 7) ^ (val >> 12);
return val % candidate_count;
return get_hash_from_flowi6(fl6) % candidate_count;
}
static struct rt6_info *rt6_multipath_select(struct rt6_info *match,