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authorJohannes Berg <johannes.berg@intel.com>2012-01-17 13:33:29 +0400
committerJohn W. Linville <linville@tuxdriver.com>2012-01-24 23:21:55 +0400
commit889cbb911a195b832745f77240f547cb2a2885bc (patch)
tree973a6325e082b0840a56a284a95b609134058c39 /net/mac80211/rate.c
parent151a02f693b866dd43e147725c818fc1ddb96aa3 (diff)
downloadlinux-889cbb911a195b832745f77240f547cb2a2885bc.tar.xz
mac80211: clean up rate control code
It seems exceedingly unlikely that we'll ever support swapping rate control algorithms at runtime, so remove the unused refcounting code. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/rate.c')
-rw-r--r--net/mac80211/rate.c27
1 files changed, 4 insertions, 23 deletions
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 5a5a7767d541..a21110aecd1a 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -159,7 +159,6 @@ static struct rate_control_ref *rate_control_alloc(const char *name,
ref = kmalloc(sizeof(struct rate_control_ref), GFP_KERNEL);
if (!ref)
goto fail_ref;
- kref_init(&ref->kref);
ref->local = local;
ref->ops = ieee80211_rate_control_ops_get(name);
if (!ref->ops)
@@ -184,11 +183,8 @@ fail_ref:
return NULL;
}
-static void rate_control_release(struct kref *kref)
+static void rate_control_free(struct rate_control_ref *ctrl_ref)
{
- struct rate_control_ref *ctrl_ref;
-
- ctrl_ref = container_of(kref, struct rate_control_ref, kref);
ctrl_ref->ops->free(ctrl_ref->priv);
#ifdef CONFIG_MAC80211_DEBUGFS
@@ -383,21 +379,10 @@ void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
BUG_ON(info->control.rates[0].idx < 0);
}
-struct rate_control_ref *rate_control_get(struct rate_control_ref *ref)
-{
- kref_get(&ref->kref);
- return ref;
-}
-
-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;
+ struct rate_control_ref *ref;
ASSERT_RTNL();
@@ -417,12 +402,8 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
return -ENOENT;
}
- old = local->rate_ctrl;
+ WARN_ON(local->rate_ctrl);
local->rate_ctrl = ref;
- if (old) {
- rate_control_put(old);
- sta_info_flush(local, NULL);
- }
wiphy_debug(local->hw.wiphy, "Selected rate control algorithm '%s'\n",
ref->ops->name);
@@ -440,6 +421,6 @@ void rate_control_deinitialize(struct ieee80211_local *local)
return;
local->rate_ctrl = NULL;
- rate_control_put(ref);
+ rate_control_free(ref);
}