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net: use reciprocal_scale() helper

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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>
This commit is contained in:
Daniel Borkmann
2014-08-23 20:58:54 +02:00
committed by David S. Miller
parent 690e36e726
commit 8fc54f6891
14 changed files with 24 additions and 22 deletions
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4
net/ipv6/udp.c
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@@ -243,7 +243,7 @@ begin:
goto exact_match;
} else if (score == badness && reuseport) {
matches++;
if (((u64)hash * matches) >> 32 == 0)
if (reciprocal_scale(hash, matches) == 0)
result = sk;
hash = next_pseudo_random32(hash);
}
@@ -323,7 +323,7 @@ begin:
}
} else if (score == badness && reuseport) {
matches++;
if (((u64)hash * matches) >> 32 == 0)
if (reciprocal_scale(hash, matches) == 0)
result = sk;
hash = next_pseudo_random32(hash);
}