[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>

1 files changed, 42 insertions, 0 deletions

diff --git a/net/mac80211/ieee80211_rate.c b/net/mac80211/ieee80211_rate.c
index 2118de04fc3..a1ded744978 100644
--- a/net/mac80211/ieee80211_rate.c
+++ b/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);
+}