Aug 21 2012

staging: rtl8192e: using random_ether_addr() to generate random MAC 

Author: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

Using random_ether_addr() to generate a random Ethernet
address (MAC) that is not multicast and has the local
assigned bit set. Not need to duplicating its implementation.

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

Signed-off-by: Wei Yongjun 
Signed-off-by: Greg Kroah-Hartman 

---
 drivers/staging/rtl8192e/rtllib_softmac.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)
 
diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index 8027ceb..99e907d 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -2620,13 +2620,7 @@ void rtllib_wake_all_queues(struct rtllib_device *ieee)
 inline void rtllib_randomize_cell(struct rtllib_device *ieee)
 {
 
-	get_random_bytes(ieee->current_network.bssid, ETH_ALEN);
-
-	/* an IBSS cell address must have the two less significant
-	 * bits of the first byte = 2
-	 */
-	ieee->current_network.bssid[0] &= ~0x01;
-	ieee->current_network.bssid[0] |= 0x02;
+	random_ether_addr(ieee->current_network.bssid);
 }
 
 /* called in user context only */

qlambert