mac80211: use sdata pointer for scan interface

Since we now use sdata pointers most of the time, using a netdev
pointer here is somewhat artificial, use an sdata pointer instead.
Replace a netdev-prefix in a few messages by a wiphy-prefix.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index c68d4df..a33bbd1 100644 (file)
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -636,7 +636,7 @@ struct ieee80211_local {
        enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
        unsigned long last_scan_completed;
        struct delayed_work scan_work;
-       struct net_device *scan_dev;
+       struct ieee80211_sub_if_data *scan_sdata;
        struct ieee80211_channel *oper_channel, *scan_channel;
        u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
        size_t scan_ssid_len;

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 7dc0631..6df4a2e 100644 (file)
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -551,7 +551,7 @@ static int ieee80211_stop(struct net_device *dev)
                synchronize_rcu();
                skb_queue_purge(&sdata->u.sta.skb_queue);
 
-               if (local->scan_dev == sdata->dev) {
+               if (local->scan_sdata == sdata) {
                        if (!local->ops->hw_scan) {
                                local->sta_sw_scanning = 0;
                                cancel_delayed_work(&local->scan_work);

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 67c3823..f60212b 100644 (file)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3507,19 +3507,18 @@ static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
 void ieee80211_scan_completed(struct ieee80211_hw *hw)
 {
        struct ieee80211_local *local = hw_to_local(hw);
-       struct net_device *dev = local->scan_dev;
        struct ieee80211_sub_if_data *sdata;
        union iwreq_data wrqu;
 
        local->last_scan_completed = jiffies;
        memset(&wrqu, 0, sizeof(wrqu));
-       wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
+       wireless_send_event(local->scan_sdata->dev, SIOCGIWSCAN, &wrqu, NULL);
 
        if (local->sta_hw_scanning) {
                local->sta_hw_scanning = 0;
                if (ieee80211_hw_config(local))
                        printk(KERN_DEBUG "%s: failed to restore operational "
-                              "channel after scan\n", dev->name);
+                              "channel after scan\n", wiphy_name(local->hw.wiphy));
                /* Restart STA timer for HW scan case */
                rcu_read_lock();
                list_for_each_entry_rcu(sdata, &local->interfaces, list)
@@ -3532,7 +3531,7 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
        local->sta_sw_scanning = 0;
        if (ieee80211_hw_config(local))
                printk(KERN_DEBUG "%s: failed to restore operational "
-                      "channel after scan\n", dev->name);
+                      "channel after scan\n", wiphy_name(local->hw.wiphy));
 
 
        netif_tx_lock_bh(local->mdev);
@@ -3562,8 +3561,8 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
        }
        rcu_read_unlock();
 
-done:
-       sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ done:
+       sdata = local->scan_sdata;
        if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
                struct ieee80211_if_sta *ifsta = &sdata->u.sta;
                if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
@@ -3578,8 +3577,7 @@ void ieee80211_sta_scan_work(struct work_struct *work)
 {
        struct ieee80211_local *local =
                container_of(work, struct ieee80211_local, scan_work.work);
-       struct net_device *dev = local->scan_dev;
-       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+       struct ieee80211_sub_if_data *sdata = local->scan_sdata;
        struct ieee80211_supported_band *sband;
        struct ieee80211_channel *chan;
        int skip;
@@ -3627,7 +3625,7 @@ void ieee80211_sta_scan_work(struct work_struct *work)
                        local->scan_channel = chan;
                        if (ieee80211_hw_config(local)) {
                                printk(KERN_DEBUG "%s: failed to set freq to "
-                                      "%d MHz for scan\n", dev->name,
+                                      "%d MHz for scan\n", wiphy_name(local->hw.wiphy),
                                       chan->center_freq);
                                skip = 1;
                        }
@@ -3697,7 +3695,7 @@ static int ieee80211_sta_start_scan(struct ieee80211_sub_if_data *scan_sdata,
         */
 
        if (local->sta_sw_scanning || local->sta_hw_scanning) {
-               if (local->scan_dev == scan_sdata->dev)
+               if (local->scan_sdata == scan_sdata)
                        return 0;
                return -EBUSY;
        }
@@ -3707,7 +3705,7 @@ static int ieee80211_sta_start_scan(struct ieee80211_sub_if_data *scan_sdata,
                                             ssid, ssid_len);
                if (!rc) {
                        local->sta_hw_scanning = 1;
-                       local->scan_dev = scan_sdata->dev;
+                       local->scan_sdata = scan_sdata;
                }
                return rc;
        }
@@ -3734,7 +3732,7 @@ static int ieee80211_sta_start_scan(struct ieee80211_sub_if_data *scan_sdata,
        local->scan_state = SCAN_SET_CHANNEL;
        local->scan_channel_idx = 0;
        local->scan_band = IEEE80211_BAND_2GHZ;
-       local->scan_dev = scan_sdata->dev;
+       local->scan_sdata = scan_sdata;
 
        netif_addr_lock_bh(local->mdev);
        local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
@@ -3762,7 +3760,7 @@ int ieee80211_sta_req_scan(struct ieee80211_sub_if_data *sdata, u8 *ssid, size_t
                return ieee80211_sta_start_scan(sdata, ssid, ssid_len);
 
        if (local->sta_sw_scanning || local->sta_hw_scanning) {
-               if (local->scan_dev == sdata->dev)
+               if (local->scan_sdata == sdata)
                        return 0;
                return -EBUSY;
        }