Author: ticso
Date: Sun Feb 28 18:06:54 2010
New Revision: 204476
URL: http://svn.freebsd.org/changeset/base/204476
Log:
simplify hash calculation
Modified:
head/sys/arm/at91/if_ate.c
Modified: head/sys/arm/at91/if_ate.c
==============================================================================
--- head/sys/arm/at91/if_ate.c Sun Feb 28 17:19:22 2010 (r204475)
+++ head/sys/arm/at91/if_ate.c Sun Feb 28 18:06:54 2010 (r204476)
@@ -384,12 +384,8 @@ static uint32_t
ate_mac_hash(const uint8_t *buf)
{
uint32_t index = 0;
- uint8_t bit;
- uint8_t bitshift;
for (int i = 0; i < 48; i++) {
- bit = i / 6;
- bitshift = i - bit * 6;
- index ^= ((buf[i >> 3] >> (i & 7)) & 1) << bitshift;
+ index ^= ((buf[i >> 3] >> (i & 7)) & 1) << (i % 6);
}
return (index);
}
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