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lan9118: use inline net_crc32() and bitshift instead of compute_mcast_idx() 

This makes it much easier to compare the multicast CRC calculation endian and
bitshift against the Linux driver implementation.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Mark Cave-Ayland 2017-12-15 18:41:51 +00:00 committed by Jason Wang
parent 308913bb43
commit eedeaee73a
1 changed files with 2 additions and 1 deletions
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3
hw/net/lan9118.c
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@ -13,6 +13,7 @@
#include "qemu/osdep.h"
#include "hw/sysbus.h"
#include "net/net.h"
#include "net/eth.h"
#include "hw/devices.h"
#include "sysemu/sysemu.h"
#include "hw/ptimer.h"
@ -504,7 +505,7 @@ static int lan9118_filter(lan9118_state *s, const uint8_t *addr)
}
} else {
/* Hash matching */
hash = compute_mcast_idx(addr);
hash = net_crc32(addr, ETH_ALEN) >> 26;
if (hash & 0x20) {
return (s->mac_hashh >> (hash & 0x1f)) & 1;
} else {