svn commit: r204476 - head/sys/arm/at91

[Bernd Walter]

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);
 }