staging: rtl8187se: using random_ether_addr() to generate random MAC

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 <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
index 7c669a2..00f9af0 100644 (file)
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
@@ -2111,13 +2111,7 @@ void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee)
 inline void ieee80211_randomize_cell(struct ieee80211_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 */