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[PULL,09/18] eepro100: use inline net_crc32() and bitshift instead of compute_mcast_idx()

Message ID 1513908937-16034-10-git-send-email-jasowang@redhat.com
State New
Headers show
Series [PULL,01/18] e1000, e1000e: Move per-packet TX offload flags out of context state | expand

Commit Message

Jason Wang Dec. 22, 2017, 2:15 a.m. UTC 
From: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

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>
---
 hw/net/eepro100.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/hw/net/eepro100.c b/hw/net/eepro100.c
index e30fed8..a07a632 100644
--- a/hw/net/eepro100.c
+++ b/hw/net/eepro100.c
@@ -1679,7 +1679,7 @@  static ssize_t nic_receive(NetClientState *nc, const uint8_t * buf, size_t size)
         rfd_status |= 0x0004;
     } else if (s->configuration[20] & BIT(6)) {
         /* Multiple IA bit set. */
-        unsigned mcast_idx = compute_mcast_idx(buf);
+        unsigned mcast_idx = net_crc32(buf, ETH_ALEN) >> 26;
         assert(mcast_idx < 64);
         if (s->mult[mcast_idx >> 3] & (1 << (mcast_idx & 7))) {
             TRACE(RXTX, logout("%p accepted, multiple IA bit set\n", s));