mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

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>
This commit is contained in:
dingtianhong 2013-12-30 15:41:06 +08:00 committed by David S. Miller
parent f75d191b36
commit 3a8e87ec23
1 changed files with 10 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/net/ethernet/packetengines/yellowfin.c
View File

@ -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);