[MAC80211]: move some rate control functions out of ieee80211.c

I think these can go with rate control just as well and it makes
ieee80211.c more readable.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/mac80211/ieee80211.c

@@ -1542,47 +1542,6 @@ void ieee80211_if_mgmt_setup(struct net_device *dev)
 	dev->destructor = ieee80211_if_free;
 }
 
-int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
-				 const char *name)
-{
-	struct rate_control_ref *ref, *old;
-
-	ASSERT_RTNL();
-	if (local->open_count || netif_running(local->mdev) ||
-	    (local->apdev && netif_running(local->apdev)))
-		return -EBUSY;
-
-	ref = rate_control_alloc(name, local);
-	if (!ref) {
-		printk(KERN_WARNING "%s: Failed to select rate control "
-		       "algorithm\n", local->mdev->name);
-		return -ENOENT;
-	}
-
-	old = local->rate_ctrl;
-	local->rate_ctrl = ref;
-	if (old) {
-		rate_control_put(old);
-		sta_info_flush(local, NULL);
-	}
-
-	printk(KERN_DEBUG "%s: Selected rate control "
-	       "algorithm '%s'\n", local->mdev->name,
-	       ref->ops->name);
-
-
-	return 0;
-}
-
-static void rate_control_deinitialize(struct ieee80211_local *local)
-{
-	struct rate_control_ref *ref;
-
-	ref = local->rate_ctrl;
-	local->rate_ctrl = NULL;
-	rate_control_put(ref);
-}
-
 struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 					const struct ieee80211_ops *ops)
 {

net/mac80211/ieee80211_i.h

@@ -727,8 +727,6 @@ 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);
-int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
-				 const char *name);
 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);

net/mac80211/ieee80211_rate.c

@@ -9,6 +9,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/rtnetlink.h>
 #include "ieee80211_rate.h"
 #include "ieee80211_i.h"
 
@@ -137,3 +138,44 @@ void rate_control_put(struct rate_control_ref *ref)
 {
 	kref_put(&ref->kref, rate_control_release);
 }
+
+int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
+				 const char *name)
+{
+	struct rate_control_ref *ref, *old;
+
+	ASSERT_RTNL();
+	if (local->open_count || netif_running(local->mdev) ||
+	    (local->apdev && netif_running(local->apdev)))
+		return -EBUSY;
+
+	ref = rate_control_alloc(name, local);
+	if (!ref) {
+		printk(KERN_WARNING "%s: Failed to select rate control "
+		       "algorithm\n", local->mdev->name);
+		return -ENOENT;
+	}
+
+	old = local->rate_ctrl;
+	local->rate_ctrl = ref;
+	if (old) {
+		rate_control_put(old);
+		sta_info_flush(local, NULL);
+	}
+
+	printk(KERN_DEBUG "%s: Selected rate control "
+	       "algorithm '%s'\n", local->mdev->name,
+	       ref->ops->name);
+
+
+	return 0;
+}
+
+void rate_control_deinitialize(struct ieee80211_local *local)
+{
+	struct rate_control_ref *ref;
+
+	ref = local->rate_ctrl;
+	local->rate_ctrl = NULL;
+	rate_control_put(ref);
+}

net/mac80211/ieee80211_rate.h

@@ -141,4 +141,10 @@ static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
 #endif
 }
 
+
+/* functions for rate control related to a device */
+int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
+				 const char *name);
+void rate_control_deinitialize(struct ieee80211_local *local);
+
 #endif /* IEEE80211_RATE_H */