diff options
| author | dingtianhong <dingtianhong@huawei.com> | 2013-12-30 15:41:06 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-12-31 16:48:32 -0500 |
| commit | 3a8e87ec2376f8844af1a1b924a19e151a85d65a (patch) | |
| tree | 756fc859bd06b329486b5406ab10b85ccf23f0fa /drivers | |
| parent | f75d191b36ab3606e9588848e0f8f4fec228ecad (diff) | |
| download | linux-3a8e87ec2376f8844af1a1b924a19e151a85d65a.tar.bz2 | |
net: packetengines: slight optimization of addr
Use possibly more efficient ether_addr_equal
to instead of memcmp.
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/packetengines/yellowfin.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/net/ethernet/packetengines/yellowfin.c b/drivers/net/ethernet/packetengines/yellowfin.c index 07a890eb72ad..9a6cb482dcd0 100644 --- a/drivers/net/ethernet/packetengines/yellowfin.c +++ b/drivers/net/ethernet/packetengines/yellowfin.c @@ -1053,7 +1053,7 @@ static int yellowfin_rx(struct net_device *dev) struct sk_buff *rx_skb = yp->rx_skbuff[entry]; s16 frame_status; u16 desc_status; - int data_size; + int data_size, yf_size; u8 *buf_addr; if(!desc->result_status) @@ -1070,6 +1070,9 @@ static int yellowfin_rx(struct net_device *dev) __func__, frame_status); if (--boguscnt < 0) break; + + yf_size = sizeof(struct yellowfin_desc); + if ( ! (desc_status & RX_EOP)) { if (data_size != 0) netdev_warn(dev, "Oversized Ethernet frame spanned multiple buffers, status %04x, data_size %d!\n", @@ -1096,12 +1099,12 @@ static int yellowfin_rx(struct net_device *dev) if (status2 & 0x80) dev->stats.rx_dropped++; #ifdef YF_PROTOTYPE /* Support for prototype hardware errata. */ } else if ((yp->flags & HasMACAddrBug) && - memcmp(le32_to_cpu(yp->rx_ring_dma + - entry*sizeof(struct yellowfin_desc)), - dev->dev_addr, 6) != 0 && - memcmp(le32_to_cpu(yp->rx_ring_dma + - entry*sizeof(struct yellowfin_desc)), - "\377\377\377\377\377\377", 6) != 0) { + !ether_addr_equal(le32_to_cpu(yp->rx_ring_dma + + entry * yf_size), + dev->dev_addr) && + !ether_addr_equal(le32_to_cpu(yp->rx_ring_dma + + entry * yf_size), + "\377\377\377\377\377\377")) { if (bogus_rx++ == 0) netdev_warn(dev, "Bad frame to %pM\n", buf_addr); |