[PATCH 08/21] ozwpan: slight optimization of addr compare

From: Ding Tianhong
Date: Mon Dec 23 2013 - 00:14:16 EST


Use the recently added and possibly more efficient
ether_addr_equal_unaligned to instead of memcmp.

Cc: Rupesh Gujare <rupesh.gujare@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: devel@xxxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Tan Xiaojun <tanxiaojun@xxxxxxxxxx>
Signed-off-by: Ding Tianhong <dingtianhong@xxxxxxxxxx>
---
drivers/staging/ozwpan/ozcdev.c | 3 ++-
drivers/staging/ozwpan/ozproto.c | 6 ++++--
2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/ozwpan/ozcdev.c b/drivers/staging/ozwpan/ozcdev.c
index 6ce0af9..4a64262 100644
--- a/drivers/staging/ozwpan/ozcdev.c
+++ b/drivers/staging/ozwpan/ozcdev.c
@@ -448,7 +448,8 @@ int oz_cdev_start(struct oz_pd *pd, int resume)
}
spin_lock(&g_cdev.lock);
if ((g_cdev.active_pd == NULL) &&
- (memcmp(pd->mac_addr, g_cdev.active_addr, ETH_ALEN) == 0)) {
+ (ether_addr_equal_unaligned(pd->mac_addr,
+ g_cdev.active_addr))) {
oz_pd_get(pd);
g_cdev.active_pd = pd;
oz_dbg(ON, "Active PD arrived\n");
diff --git a/drivers/staging/ozwpan/ozproto.c b/drivers/staging/ozwpan/ozproto.c
index 88714ec..9a70591 100644
--- a/drivers/staging/ozwpan/ozproto.c
+++ b/drivers/staging/ozwpan/ozproto.c
@@ -9,6 +9,7 @@
#include <linux/timer.h>
#include <linux/sched.h>
#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
#include <linux/errno.h>
#include <linux/ieee80211.h>
#include "ozdbg.h"
@@ -180,7 +181,8 @@ static struct oz_pd *oz_connect_req(struct oz_pd *cur_pd, struct oz_elt *elt,
spin_lock_bh(&g_polling_lock);
list_for_each(e, &g_pd_list) {
pd2 = container_of(e, struct oz_pd, link);
- if (memcmp(pd2->mac_addr, pd_addr, ETH_ALEN) == 0) {
+ if (ether_addr_equal_unaligned(pd2->mac_addr,
+ pd_addr)) {
free_pd = pd;
pd = pd2;
break;
@@ -597,7 +599,7 @@ struct oz_pd *oz_pd_find(const u8 *mac_addr)
spin_lock_bh(&g_polling_lock);
list_for_each(e, &g_pd_list) {
pd = container_of(e, struct oz_pd, link);
- if (memcmp(pd->mac_addr, mac_addr, ETH_ALEN) == 0) {
+ if (ether_addr_equal_unaligned(pd->mac_addr, mac_addr)) {
atomic_inc(&pd->ref_count);
spin_unlock_bh(&g_polling_lock);
return pd;
--
1.8.0

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