[MAC80211]: remove unused ioctls (1)

The ioctls

 * PRISM2_PARAM_ANTENNA_MODE
 * PRISM2_PARAM_STAT_TIME

are not used by hostapd or wpa_supplicant.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/mac80211.h

@@ -302,9 +302,6 @@ struct ieee80211_conf {
 	u8 antenna_sel_tx;
 	u8 antenna_sel_rx;
 
-	int antenna_def;
-	int antenna_mode;
-
 	/* Following five fields are used for IEEE 802.11H */
 	unsigned int radar_detect;
 	unsigned int spect_mgmt;

net/mac80211/hostapd_ioctl.h

@@ -32,8 +32,6 @@ enum {
 	PRISM2_PARAM_PREAMBLE = 1003,
 	PRISM2_PARAM_SHORT_SLOT_TIME = 1006,
 	PRISM2_PARAM_NEXT_MODE = 1008,
-	PRISM2_PARAM_ANTENNA_MODE = 1013,
-	PRISM2_PARAM_STAT_TIME = 1016,
 	PRISM2_PARAM_STA_ANTENNA_SEL = 1017,
 	PRISM2_PARAM_TX_POWER_REDUCTION = 1022,
 	PRISM2_PARAM_KEY_TX_RX_THRESHOLD = 1024,

net/mac80211/ieee80211.c

@@ -786,42 +786,6 @@ struct dev_mc_list *ieee80211_get_mc_list_item(struct ieee80211_hw *hw,
 }
 EXPORT_SYMBOL(ieee80211_get_mc_list_item);
 
-static void ieee80211_stat_refresh(unsigned long data)
-{
-	struct ieee80211_local *local = (struct ieee80211_local *) data;
-	struct sta_info *sta;
-	struct ieee80211_sub_if_data *sdata;
-
-	if (!local->stat_time)
-		return;
-
-	/* go through all stations */
-	read_lock_bh(&local->sta_lock);
-	list_for_each_entry(sta, &local->sta_list, list) {
-		sta->channel_use = (sta->channel_use_raw / local->stat_time) /
-			CHAN_UTIL_PER_10MS;
-		sta->channel_use_raw = 0;
-	}
-	read_unlock_bh(&local->sta_lock);
-
-	/* go through all subinterfaces */
-	read_lock(&local->sub_if_lock);
-	list_for_each_entry(sdata, &local->sub_if_list, list) {
-		sdata->channel_use = (sdata->channel_use_raw /
-				      local->stat_time) / CHAN_UTIL_PER_10MS;
-		sdata->channel_use_raw = 0;
-	}
-	read_unlock(&local->sub_if_lock);
-
-	/* hardware interface */
-	local->channel_use = (local->channel_use_raw /
-			      local->stat_time) / CHAN_UTIL_PER_10MS;
-	local->channel_use_raw = 0;
-
-	local->stat_timer.expires = jiffies + HZ * local->stat_time / 100;
-	add_timer(&local->stat_timer);
-}
-
 void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
 				 struct sk_buff *skb,
 				 struct ieee80211_tx_status *status)
@@ -1260,9 +1224,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	INIT_LIST_HEAD(&local->sub_if_list);
 
 	INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work);
-	init_timer(&local->stat_timer);
-	local->stat_timer.function = ieee80211_stat_refresh;
-	local->stat_timer.data = (unsigned long) local;
 	ieee80211_rx_bss_list_init(mdev);
 
 	sta_info_init(local);
@@ -1461,9 +1422,6 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 
 	rtnl_unlock();
 
-	if (local->stat_time)
-		del_timer_sync(&local->stat_timer);
-
 	ieee80211_rx_bss_list_deinit(local->mdev);
 	ieee80211_clear_tx_pending(local);
 	sta_info_stop(local);

net/mac80211/ieee80211_i.h

@@ -509,8 +509,6 @@ struct ieee80211_local {
 
 	u32 channel_use;
 	u32 channel_use_raw;
-	u32 stat_time;
-	struct timer_list stat_timer;
 
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct work_struct sta_debugfs_add;

net/mac80211/ieee80211_ioctl.c

@@ -1075,15 +1075,6 @@ static int ieee80211_ioctl_prism2_param(struct net_device *dev,
 		}
 		break;
 
-	case PRISM2_PARAM_STAT_TIME:
-		if (!local->stat_time && value) {
-			local->stat_timer.expires = jiffies + HZ * value / 100;
-			add_timer(&local->stat_timer);
-		} else if (local->stat_time && !value) {
-			del_timer_sync(&local->stat_timer);
-		}
-		local->stat_time = value;
-		break;
 	case PRISM2_PARAM_SHORT_SLOT_TIME:
 		if (value)
 			local->hw.conf.flags |= IEEE80211_CONF_SHORT_SLOT_TIME;
@@ -1097,12 +1088,6 @@ static int ieee80211_ioctl_prism2_param(struct net_device *dev,
 		local->next_mode = value;
 		break;
 
-	case PRISM2_PARAM_ANTENNA_MODE:
-		local->hw.conf.antenna_mode = value;
-		if (ieee80211_hw_config(local))
-			ret = -EINVAL;
-		break;
-
 	case PRISM2_PARAM_STA_ANTENNA_SEL:
 		local->sta_antenna_sel = value;
 		break;
@@ -1194,9 +1179,6 @@ static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
 		*param = sdata->short_preamble;
 		break;
 
-	case PRISM2_PARAM_STAT_TIME:
-		*param = local->stat_time;
-		break;
 	case PRISM2_PARAM_SHORT_SLOT_TIME:
 		*param = !!(local->hw.conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME);
 		break;
@@ -1205,10 +1187,6 @@ static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
 		*param = local->next_mode;
 		break;
 
-	case PRISM2_PARAM_ANTENNA_MODE:
-		*param = local->hw.conf.antenna_mode;
-		break;
-
 	case PRISM2_PARAM_STA_ANTENNA_SEL:
 		*param = local->sta_antenna_sel;
 		break;