2014-01-08 02:57:59

by Ding Tianhong

[permalink] [raw]
Subject: [PATCH v3.6 11/19] atm: slight optimization of addr compare

Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Chas Williams <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Yang Yingliang <[email protected]>
Signed-off-by: Ding Tianhong <[email protected]>
---
drivers/atm/nicstar.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c
index 5aca5f4..9587e95 100644
--- a/drivers/atm/nicstar.c
+++ b/drivers/atm/nicstar.c
@@ -52,6 +52,7 @@
#include <asm/io.h>
#include <asm/uaccess.h>
#include <linux/atomic.h>
+#include <linux/etherdevice.h>
#include "nicstar.h"
#ifdef CONFIG_ATM_NICSTAR_USE_SUNI
#include "suni.h"
@@ -781,8 +782,7 @@ static int ns_init_card(int i, struct pci_dev *pcidev)
if (mac[i] == NULL || !mac_pton(mac[i], card->atmdev->esi)) {
nicstar_read_eprom(card->membase, NICSTAR_EPROM_MAC_ADDR_OFFSET,
card->atmdev->esi, 6);
- if (memcmp(card->atmdev->esi, "\x00\x00\x00\x00\x00\x00", 6) ==
- 0) {
+ if (ether_addr_equal(card->atmdev->esi, "\x00\x00\x00\x00\x00\x00")) {
nicstar_read_eprom(card->membase,
NICSTAR_EPROM_MAC_ADDR_OFFSET_ALT,
card->atmdev->esi, 6);
--
1.8.0