rt2x00: Add WCID to crypto struct

When a WCID was already assigned to a STA the key configuration
functions need to use the same WCID for configuring the keys. Hence, add
the WCID to the crypo configuration structure.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2x00.h

@@ -478,6 +478,8 @@ struct rt2x00lib_crypto {
 	u8 key[16];
 	u8 tx_mic[8];
 	u8 rx_mic[8];
+
+	int wcid;
 };
 
 /*

drivers/net/wireless/rt2x00/rt2x00mac.c

@@ -494,6 +494,7 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	struct rt2x00lib_crypto crypto;
 	static const u8 bcast_addr[ETH_ALEN] =
 		{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, };
+	struct rt2x00_sta *sta_priv = NULL;
 
 	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
 		return 0;
@@ -511,9 +512,11 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 
 	crypto.cmd = cmd;
 
-	if (sta)
+	if (sta) {
 		crypto.address = sta->addr;
-	else
+		sta_priv = sta_to_rt2x00_sta(sta);
+		crypto.wcid = sta_priv->wcid;
+	} else
 		crypto.address = bcast_addr;
 
 	if (crypto.cipher == CIPHER_TKIP)