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| author | Daniel Borkmann | 2014-08-23 20:58:54 +0200 |
|---|---|---|
| committer | David S. Miller | 2014-08-23 21:21:21 +0200 |
| commit | 8fc54f68919298ff9689d980efb495707ef43f30 (patch) | |
| tree | c8a0c89621a9e670be02764a357bb6e73ed7ab6c /net/netfilter/nf_conntrack_expect.c | |
| parent | net: Allow raw buffers to be passed into the flow dissector. (diff) | |
| download | kernel-qcow2-linux-8fc54f68919298ff9689d980efb495707ef43f30.tar.gz kernel-qcow2-linux-8fc54f68919298ff9689d980efb495707ef43f30.tar.xz kernel-qcow2-linux-8fc54f68919298ff9689d980efb495707ef43f30.zip | |
net: use reciprocal_scale() helper
Replace open codings of (((u64) <x> * <y>) >> 32) with reciprocal_scale().
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netfilter/nf_conntrack_expect.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_expect.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c index f87e8f68ad45..91a1837acd0e 100644 --- a/net/netfilter/nf_conntrack_expect.c +++ b/net/netfilter/nf_conntrack_expect.c @@ -83,7 +83,8 @@ static unsigned int nf_ct_expect_dst_hash(const struct nf_conntrack_tuple *tuple hash = jhash2(tuple->dst.u3.all, ARRAY_SIZE(tuple->dst.u3.all), (((tuple->dst.protonum ^ tuple->src.l3num) << 16) | (__force __u16)tuple->dst.u.all) ^ nf_conntrack_hash_rnd); - return ((u64)hash * nf_ct_expect_hsize) >> 32; + + return reciprocal_scale(hash, nf_ct_expect_hsize); } struct nf_conntrack_expect * |