[MAC80211]: use internal network device stats

Stats are now available for device usage inside network_device
Signed-off-by: NStephen Hemminger <shemminger@linux-foundation.org>
Acked-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/mac80211/ieee80211.c

@@ -47,13 +47,6 @@ struct ieee80211_tx_status_rtap_hdr {
 
 /* common interface routines */
 
-static struct net_device_stats *ieee80211_get_stats(struct net_device *dev)
-{
-	struct ieee80211_sub_if_data *sdata;
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	return &(sdata->stats);
-}
-
 static int header_parse_80211(struct sk_buff *skb, unsigned char *haddr)
 {
 	memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
@@ -168,11 +161,9 @@ ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
 {
 	struct ieee80211_frame_info *fi;
 	const size_t hlen = sizeof(struct ieee80211_frame_info);
-	struct ieee80211_sub_if_data *sdata;
+	struct net_device *dev = local->apdev;
 
-	skb->dev = local->apdev;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(local->apdev);
+	skb->dev = dev;
 
 	if (skb_headroom(skb) < hlen) {
 		I802_DEBUG_INC(local->rx_expand_skb_head);
@@ -187,8 +178,8 @@ ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
 	ieee80211_fill_frame_info(local, fi, status);
 	fi->msg_type = htonl(msg_type);
 
-	sdata->stats.rx_packets++;
-	sdata->stats.rx_bytes += skb->len;
+	dev->stats.rx_packets++;
+	dev->stats.rx_bytes += skb->len;
 
 	skb_set_mac_header(skb, 0);
 	skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -269,7 +260,6 @@ void ieee80211_if_mgmt_setup(struct net_device *dev)
 	ether_setup(dev);
 	dev->hard_start_xmit = ieee80211_mgmt_start_xmit;
 	dev->change_mtu = ieee80211_change_mtu_apdev;
-	dev->get_stats = ieee80211_get_stats;
 	dev->open = ieee80211_mgmt_open;
 	dev->stop = ieee80211_mgmt_stop;
 	dev->type = ARPHRD_IEEE80211_PRISM;
@@ -599,7 +589,6 @@ void ieee80211_if_setup(struct net_device *dev)
 	dev->wireless_handlers = &ieee80211_iw_handler_def;
 	dev->set_multicast_list = ieee80211_set_multicast_list;
 	dev->change_mtu = ieee80211_change_mtu;
-	dev->get_stats = ieee80211_get_stats;
 	dev->open = ieee80211_open;
 	dev->stop = ieee80211_stop;
 	dev->uninit = ieee80211_if_reinit;
@@ -1461,13 +1450,6 @@ void ieee80211_free_hw(struct ieee80211_hw *hw)
 }
 EXPORT_SYMBOL(ieee80211_free_hw);
 
-struct net_device_stats *ieee80211_dev_stats(struct net_device *dev)
-{
-	struct ieee80211_sub_if_data *sdata;
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	return &sdata->stats;
-}
-
 static int __init ieee80211_init(void)
 {
 	struct sk_buff *skb;

net/mac80211/ieee80211_i.h

@@ -301,7 +301,6 @@ struct ieee80211_sub_if_data {
 
 	unsigned int flags;
 
-	struct net_device_stats stats;
 	int drop_unencrypted;
 	int eapol; /* 0 = process EAPOL frames as normal data frames,
 		    * 1 = send EAPOL frames through wlan#ap to hostapd
@@ -723,7 +722,6 @@ void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
 int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
 void ieee80211_if_setup(struct net_device *dev);
 void ieee80211_if_mgmt_setup(struct net_device *dev);
-struct net_device_stats *ieee80211_dev_stats(struct net_device *dev);
 struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
 					  int phymode, int hwrate);
 void ieee80211_key_threshold_notify(struct net_device *dev,

net/mac80211/rx.c

@@ -137,7 +137,6 @@ ieee80211_rx_monitor(struct net_device *dev, struct sk_buff *skb,
 		     struct ieee80211_rx_status *status)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_rate *rate;
 	struct ieee80211_rtap_hdr {
 		struct ieee80211_radiotap_header hdr;
@@ -150,8 +149,6 @@ ieee80211_rx_monitor(struct net_device *dev, struct sk_buff *skb,
 
 	skb->dev = dev;
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
 	if (status->flag & RX_FLAG_RADIOTAP)
 		goto out;
 
@@ -184,8 +181,8 @@ ieee80211_rx_monitor(struct net_device *dev, struct sk_buff *skb,
 	rthdr->antsignal = status->ssi;
 
  out:
-	sdata->stats.rx_packets++;
-	sdata->stats.rx_bytes += skb->len;
+	dev->stats.rx_packets++;
+	dev->stats.rx_bytes += skb->len;
 
 	skb_set_mac_header(skb, 0);
 	skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -1053,8 +1050,8 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
 
 	skb2 = NULL;
 
-	sdata->stats.rx_packets++;
-	sdata->stats.rx_bytes += skb->len;
+	dev->stats.rx_packets++;
+	dev->stats.rx_bytes += skb->len;
 
 	if (local->bridge_packets && (sdata->type == IEEE80211_IF_TYPE_AP
 	    || sdata->type == IEEE80211_IF_TYPE_VLAN) &&

net/mac80211/tx.c

@@ -1528,8 +1528,8 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 		pkt_data->flags |= IEEE80211_TXPD_MGMT_IFACE;
 
 	skb->dev = local->mdev;
-	sdata->stats.tx_packets++;
-	sdata->stats.tx_bytes += skb->len;
+	dev->stats.tx_packets++;
+	dev->stats.tx_bytes += skb->len;
 
 	/* Update skb pointers to various headers since this modified frame
 	 * is going to go through Linux networking code that may potentially
@@ -1602,8 +1602,8 @@ int ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (!(fc & IEEE80211_FCTL_PROTECTED))
 		pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
 
-	sdata->stats.tx_packets++;
-	sdata->stats.tx_bytes += skb->len;
+	dev->stats.tx_packets++;
+	dev->stats.tx_bytes += skb->len;
 
 	dev_queue_xmit(skb);