Re: [PATCH] staging: rtl871x_mlme.c: use is_zero_ether_addr() instead of memcmp()

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On 08/23/2012 02:20 AM, Wei Yongjun wrote:
From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>

Using is_zero_ether_addr() instead of directly use
memcmp() to determine if the ethernet address is
all zeros.

spatch with a semantic match is used to found this problem.
(http://coccinelle.lip6.fr/)

Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
---
  drivers/staging/rtl8712/rtl871x_mlme.c | 5 +++--
  1 file changed, 3 insertions(+), 2 deletions(-)

The content of this patch is OK, but the subject line needs to be "staging: r8712u: rtl871x_mlme.c" use ....". Without that "r8712u" addition, searching the git log for all changes to r8712u is a lot harder.

With that change: ACKED-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>

diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
index dc7adc1..c51ad9e 100644
--- a/drivers/staging/rtl8712/rtl871x_mlme.c
+++ b/drivers/staging/rtl8712/rtl871x_mlme.c
@@ -28,6 +28,8 @@

  #define _RTL871X_MLME_C_

+#include <linux/etherdevice.h>
+
  #include "osdep_service.h"
  #include "drv_types.h"
  #include "recv_osdep.h"
@@ -146,9 +148,8 @@ static struct wlan_network *_r8712_find_network(struct  __queue *scanned_queue,
  	unsigned long irqL;
  	struct list_head *phead, *plist;
  	struct wlan_network *pnetwork = NULL;
-	u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};

-	if (!memcmp(zero_addr, addr, ETH_ALEN))
+	if (is_zero_ether_addr(addr))
  		return NULL;
  	spin_lock_irqsave(&scanned_queue->lock, irqL);
  	phead = get_list_head(scanned_queue);




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