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authorWei Yongjun <yongjun_wei@trendmicro.com.cn>2012-08-23 10:40:28 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-09-05 01:14:08 +0400
commit1e9ee6f7b6ad68dc67444fff13bb7324087874e3 (patch)
treefd4947fb9f200308e514a86c82b89dac51bb1db4 /drivers/staging/rtl8712
parent73ee07faeec88b15ef4ffa412622fc2c021ca8ff (diff)
downloadlinux-1e9ee6f7b6ad68dc67444fff13bb7324087874e3.tar.xz
staging: r8712u: use is_zero_ether_addr() instead of memcmp()
Using is_zero_ether_addr() instead of directly use memcmp(addr, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) 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@trendmicro.com.cn> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/rtl8712')
-rw-r--r--drivers/staging/rtl8712/rtl871x_recv.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/staging/rtl8712/rtl871x_recv.c b/drivers/staging/rtl8712/rtl871x_recv.c
index c9d1743e5c5d..23ec684b60e1 100644
--- a/drivers/staging/rtl8712/rtl871x_recv.c
+++ b/drivers/staging/rtl8712/rtl871x_recv.c
@@ -32,6 +32,7 @@
#include <linux/slab.h>
#include <linux/if_ether.h>
#include <linux/kmemleak.h>
+#include <linux/etherdevice.h>
#include "osdep_service.h"
#include "drv_types.h"
@@ -331,8 +332,8 @@ static sint sta2sta_data_frame(struct _adapter *adapter,
return _FAIL;
if ((memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast))
return _FAIL;
- if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
- !memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
+ if (is_zero_ether_addr(pattrib->bssid) ||
+ is_zero_ether_addr(mybssid) ||
(memcmp(pattrib->bssid, mybssid, ETH_ALEN)))
return _FAIL;
sta_addr = pattrib->src;
@@ -409,8 +410,8 @@ static sint ap2sta_data_frame(struct _adapter *adapter,
if ((memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast))
return _FAIL;
/* check BSSID */
- if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
- !memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
+ if (is_zero_ether_addr(pattrib->bssid) ||
+ is_zero_ether_addr(mybssid) ||
(memcmp(pattrib->bssid, mybssid, ETH_ALEN)))
return _FAIL;
if (bmcast)