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-rw-r--r--net/mac80211/Kconfig12
-rw-r--r--net/mac80211/Makefile3
-rw-r--r--net/mac80211/ieee80211.c13
-rw-r--r--net/mac80211/ieee80211_rate.c13
-rw-r--r--net/mac80211/ieee80211_rate.h3
-rw-r--r--net/mac80211/rc80211_simple.c25
6 files changed, 42 insertions, 27 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index 6fffb3845ab..32c8c08c468 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -13,6 +13,18 @@ config MAC80211
This option enables the hardware independent IEEE 802.11
networking stack.
+config MAC80211_RCSIMPLE
+ bool "'simple' rate control algorithm"
+ default y
+ depends on MAC80211 && EMBEDDED
+ help
+ This option allows you to turn off the 'simple' rate
+ control algorithm in mac80211. If you do turn it off,
+ you absolutely need another rate control algorithm.
+
+ Say Y unless you know you will have another algorithm
+ available.
+
config MAC80211_LEDS
bool "Enable LED triggers"
depends on MAC80211 && LEDS_TRIGGERS
diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile
index 219cd9f9341..1e6237b3484 100644
--- a/net/mac80211/Makefile
+++ b/net/mac80211/Makefile
@@ -1,8 +1,9 @@
-obj-$(CONFIG_MAC80211) += mac80211.o rc80211_simple.o
+obj-$(CONFIG_MAC80211) += mac80211.o
mac80211-objs-$(CONFIG_MAC80211_LEDS) += ieee80211_led.o
mac80211-objs-$(CONFIG_MAC80211_DEBUGFS) += debugfs.o debugfs_sta.o debugfs_netdev.o debugfs_key.o
mac80211-objs-$(CONFIG_NET_SCHED) += wme.o
+mac80211-objs-$(CONFIG_MAC80211_RCSIMPLE) += rc80211_simple.o
mac80211-objs := \
ieee80211.o \
diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c
index f484ca7ade9..52ba6ef9068 100644
--- a/net/mac80211/ieee80211.c
+++ b/net/mac80211/ieee80211.c
@@ -1233,8 +1233,17 @@ static int __init ieee80211_init(void)
BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb));
+#ifdef CONFIG_MAC80211_RCSIMPLE
+ ret = ieee80211_rate_control_register(&mac80211_rcsimple);
+ if (ret)
+ return ret;
+#endif
+
ret = ieee80211_wme_register();
if (ret) {
+#ifdef CONFIG_MAC80211_RCSIMPLE
+ ieee80211_rate_control_unregister(&mac80211_rcsimple);
+#endif
printk(KERN_DEBUG "ieee80211_init: failed to "
"initialize WME (err=%d)\n", ret);
return ret;
@@ -1248,6 +1257,10 @@ static int __init ieee80211_init(void)
static void __exit ieee80211_exit(void)
{
+#ifdef CONFIG_MAC80211_RCSIMPLE
+ ieee80211_rate_control_unregister(&mac80211_rcsimple);
+#endif
+
ieee80211_wme_unregister();
ieee80211_debugfs_netdev_exit();
}
diff --git a/net/mac80211/ieee80211_rate.c b/net/mac80211/ieee80211_rate.c
index 93abb8fff14..e4bd8481554 100644
--- a/net/mac80211/ieee80211_rate.c
+++ b/net/mac80211/ieee80211_rate.c
@@ -25,6 +25,9 @@ int ieee80211_rate_control_register(struct rate_control_ops *ops)
{
struct rate_control_alg *alg;
+ if (!ops->name)
+ return -EINVAL;
+
alg = kzalloc(sizeof(*alg), GFP_KERNEL);
if (alg == NULL) {
return -ENOMEM;
@@ -61,9 +64,12 @@ ieee80211_try_rate_control_ops_get(const char *name)
struct rate_control_alg *alg;
struct rate_control_ops *ops = NULL;
+ if (!name)
+ return NULL;
+
mutex_lock(&rate_ctrl_mutex);
list_for_each_entry(alg, &rate_ctrl_algs, list) {
- if (!name || !strcmp(alg->ops->name, name))
+ if (!strcmp(alg->ops->name, name))
if (try_module_get(alg->ops->module)) {
ops = alg->ops;
break;
@@ -80,9 +86,12 @@ ieee80211_rate_control_ops_get(const char *name)
{
struct rate_control_ops *ops;
+ if (!name)
+ name = "simple";
+
ops = ieee80211_try_rate_control_ops_get(name);
if (!ops) {
- request_module("rc80211_%s", name ? name : "default");
+ request_module("rc80211_%s", name);
ops = ieee80211_try_rate_control_ops_get(name);
}
return ops;
diff --git a/net/mac80211/ieee80211_rate.h b/net/mac80211/ieee80211_rate.h
index 7cd1ebab4f8..23688139ffb 100644
--- a/net/mac80211/ieee80211_rate.h
+++ b/net/mac80211/ieee80211_rate.h
@@ -65,6 +65,9 @@ struct rate_control_ref {
struct kref kref;
};
+/* default 'simple' algorithm */
+extern struct rate_control_ops mac80211_rcsimple;
+
int ieee80211_rate_control_register(struct rate_control_ops *ops);
void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
diff --git a/net/mac80211/rc80211_simple.c b/net/mac80211/rc80211_simple.c
index 314b8de8886..da72737364e 100644
--- a/net/mac80211/rc80211_simple.c
+++ b/net/mac80211/rc80211_simple.c
@@ -7,7 +7,6 @@
* published by the Free Software Foundation.
*/
-#include <linux/module.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/types.h>
@@ -29,8 +28,6 @@
#define RATE_CONTROL_INTERVAL (HZ / 20)
#define RATE_CONTROL_MIN_TX 10
-MODULE_ALIAS("rc80211_default");
-
static void rate_control_rate_inc(struct ieee80211_local *local,
struct sta_info *sta)
{
@@ -394,8 +391,7 @@ static void rate_control_simple_remove_sta_debugfs(void *priv, void *priv_sta)
}
#endif
-static struct rate_control_ops rate_control_simple = {
- .module = THIS_MODULE,
+struct rate_control_ops mac80211_rcsimple = {
.name = "simple",
.tx_status = rate_control_simple_tx_status,
.get_rate = rate_control_simple_get_rate,
@@ -410,22 +406,3 @@ static struct rate_control_ops rate_control_simple = {
.remove_sta_debugfs = rate_control_simple_remove_sta_debugfs,
#endif
};
-
-
-static int __init rate_control_simple_init(void)
-{
- return ieee80211_rate_control_register(&rate_control_simple);
-}
-
-
-static void __exit rate_control_simple_exit(void)
-{
- ieee80211_rate_control_unregister(&rate_control_simple);
-}
-
-
-subsys_initcall(rate_control_simple_init);
-module_exit(rate_control_simple_exit);
-
-MODULE_DESCRIPTION("Simple rate control algorithm for ieee80211");
-MODULE_LICENSE("GPL");