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| author |   Daniel Borkmann <dborkman@redhat.com> | 2014-08-23 20:58:54 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-08-23 12:21:21 -0700 |
| commit | 8fc54f68919298ff9689d980efb495707ef43f30 (patch) | |
| tree | c8a0c89621a9e670be02764a357bb6e73ed7ab6c /net/netfilter/xt_hashlimit.c | |
| parent | net: Allow raw buffers to be passed into the flow dissector. (diff) | |
| download | linux-dev-8fc54f68919298ff9689d980efb495707ef43f30.tar.xz linux-dev-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/xt_hashlimit.c')
| -rw-r--r-- | net/netfilter/xt_hashlimit.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c index 47dc6836830a..52eb3e03458d 100644 --- a/net/netfilter/xt_hashlimit.c +++ b/net/netfilter/xt_hashlimit.c @@ -135,7 +135,7 @@ hash_dst(const struct xt_hashlimit_htable *ht, const struct dsthash_dst *dst) * give results between [0 and cfg.size-1] and same hash distribution, * but using a multiply, less expensive than a divide */ - return ((u64)hash * ht->cfg.size) >> 32; + return reciprocal_scale(hash, ht->cfg.size); } static struct dsthash_ent * |