mac80211: allow setting drop_unencrypted with wext

This patch allows wpa_supplicant to set the drop_unencrypted setting in
mac80211.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/mac80211/ieee80211_ioctl.c

@@ -930,6 +930,9 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
 	case IW_AUTH_RX_UNENCRYPTED_EAPOL:
 	case IW_AUTH_KEY_MGMT:
 		break;
+	case IW_AUTH_DROP_UNENCRYPTED:
+		sdata->drop_unencrypted = !!data->value;
+		break;
 	case IW_AUTH_PRIVACY_INVOKED:
 		if (sdata->type != IEEE80211_IF_TYPE_STA)
 			ret = -EINVAL;