[src/trunk]: src/sys/arch/arm/rockchip fix multicast hash calculation

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/9f489dd41232
branches:  trunk
changeset: 335422:9f489dd41232
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Tue Jan 06 11:19:16 2015 +0000

description:
fix multicast hash calculation

diffstat:

 sys/arch/arm/rockchip/rockchip_emac.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r d64612507cc8 -r 9f489dd41232 sys/arch/arm/rockchip/rockchip_emac.c
--- a/sys/arch/arm/rockchip/rockchip_emac.c     Tue Jan 06 11:04:00 2015 +0000
+++ b/sys/arch/arm/rockchip/rockchip_emac.c     Tue Jan 06 11:19:16 2015 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: rockchip_emac.c,v 1.5 2015/01/05 23:00:52 jmcneill Exp $ */
+/* $NetBSD: rockchip_emac.c,v 1.6 2015/01/06 11:19:16 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2015 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -29,7 +29,7 @@
 #include "opt_rkemac.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rockchip_emac.c,v 1.5 2015/01/05 23:00:52 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rockchip_emac.c,v 1.6 2015/01/06 11:19:16 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -908,7 +908,7 @@
                        hashes[0] = hashes[1] = 0xffffffff;
                        goto done;
                }
-               h = ether_crc32_le(enm->enm_addrlo, ETHER_ADDR_LEN);
+               h = ~ether_crc32_le(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26;
                hashes[h >> 5] |= (1 << (h & 0x1f));
                ETHER_NEXT_MULTI(step, enm);
        }