cfg80211: constify key mac address in ops

The address pointed to by mac_addr can be marked as const.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 4e627cf..be86e15 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -112,7 +112,7 @@
 }
 
 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
-			     u8 key_idx, u8 *mac_addr,
+			     u8 key_idx, const u8 *mac_addr,
 			     struct key_params *params)
 {
 	struct ieee80211_sub_if_data *sdata;
@@ -166,7 +166,7 @@
 }
 
 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
-			     u8 key_idx, u8 *mac_addr)
+			     u8 key_idx, const u8 *mac_addr)
 {
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
@@ -208,7 +208,7 @@
 }
 
 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
-			     u8 key_idx, u8 *mac_addr, void *cookie,
+			     u8 key_idx, const u8 *mac_addr, void *cookie,
 			     void (*callback)(void *cookie,
 					      struct key_params *params))
 {