mac80211: make rate control ops const

Change the code to allow making all the rate control ops
const, nothing ever needs to change them. Also change all
drivers to make use of this and mark the ops const.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

13 files changed, 23 insertions, 21 deletions

diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index d829bb62a3fc..1219532e908a 100644
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -1466,7 +1466,7 @@ static void ath_rate_free_sta(void *priv, struct ieee80211_sta *sta,
 	kfree(rate_priv);
 }
 
-static struct rate_control_ops ath_rate_ops = {
+static const struct rate_control_ops ath_rate_ops = {
 	.module = NULL,
 	.name = "ath9k_rate_control",
 	.tx_status = ath_tx_status,
diff --git a/drivers/net/wireless/iwlegacy/3945-rs.c b/drivers/net/wireless/iwlegacy/3945-rs.c
index 9a45f6f626f6..7088c6a89455 100644
--- a/drivers/net/wireless/iwlegacy/3945-rs.c
+++ b/drivers/net/wireless/iwlegacy/3945-rs.c
@@ -891,7 +891,7 @@ il3945_rs_rate_init_stub(void *il_r, struct ieee80211_supported_band *sband,
 {
 }
 
-static struct rate_control_ops rs_ops = {
+static const struct rate_control_ops rs_ops = {
 	.module = NULL,
 	.name = RS_NAME,
 	.tx_status = il3945_rs_tx_status,
diff --git a/drivers/net/wireless/iwlegacy/4965-rs.c b/drivers/net/wireless/iwlegacy/4965-rs.c
index 4d5e33259ca8..cdbfc1d30b98 100644
--- a/drivers/net/wireless/iwlegacy/4965-rs.c
+++ b/drivers/net/wireless/iwlegacy/4965-rs.c
@@ -2807,7 +2807,7 @@ il4965_rs_rate_init_stub(void *il_r, struct ieee80211_supported_band *sband,
 {
 }
 
-static struct rate_control_ops rs_4965_ops = {
+static const struct rate_control_ops rs_4965_ops = {
 	.module = NULL,
 	.name = IL4965_RS_NAME,
 	.tx_status = il4965_rs_tx_status,
diff --git a/drivers/net/wireless/iwlwifi/dvm/rs.c b/drivers/net/wireless/iwlwifi/dvm/rs.c
index 0977d93b529d..c4dded8d8091 100644
--- a/drivers/net/wireless/iwlwifi/dvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/dvm/rs.c
@@ -3319,7 +3319,8 @@ static void rs_rate_init_stub(void *priv_r, struct ieee80211_supported_band *sba
 			      struct ieee80211_sta *sta, void *priv_sta)
 {
 }
-static struct rate_control_ops rs_ops = {
+
+static const struct rate_control_ops rs_ops = {
 	.module = NULL,
 	.name = RS_NAME,
 	.tx_status = rs_tx_status,
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 6abf74e1351f..22f1953880b6 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -2815,7 +2815,8 @@ static void rs_rate_init_stub(void *mvm_r,
 			      struct ieee80211_sta *sta, void *mvm_sta)
 {
 }
-static struct rate_control_ops rs_mvm_ops = {
+
+static const struct rate_control_ops rs_mvm_ops = {
 	.module = NULL,
 	.name = RS_NAME,
 	.tx_status = rs_tx_status,
diff --git a/drivers/net/wireless/rtlwifi/rc.c b/drivers/net/wireless/rtlwifi/rc.c
index a98acefb8c06..1503d9e5bc9f 100644
--- a/drivers/net/wireless/rtlwifi/rc.c
+++ b/drivers/net/wireless/rtlwifi/rc.c
@@ -260,7 +260,7 @@ static void rtl_rate_free_sta(void *rtlpriv,
 	kfree(rate_priv);
 }
 
-static struct rate_control_ops rtl_rate_ops = {
+static const struct rate_control_ops rtl_rate_ops = {
 	.module = NULL,
 	.name = "rtl_rc",
 	.alloc = rtl_rate_alloc,
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index df1004be7ba5..0c2676e2a1f8 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4555,8 +4555,8 @@ int rate_control_set_rates(struct ieee80211_hw *hw,
 			   struct ieee80211_sta *pubsta,
 			   struct ieee80211_sta_rates *rates);
 
-int ieee80211_rate_control_register(struct rate_control_ops *ops);
-void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
+int ieee80211_rate_control_register(const struct rate_control_ops *ops);
+void ieee80211_rate_control_unregister(const struct rate_control_ops *ops);
 
 static inline bool
 conf_is_ht20(struct ieee80211_conf *conf)
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 22b223f13c9f..255b59e616d0 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -18,7 +18,7 @@
 
 struct rate_control_alg {
 	struct list_head list;
-	struct rate_control_ops *ops;
+	const struct rate_control_ops *ops;
 };
 
 static LIST_HEAD(rate_ctrl_algs);
@@ -29,7 +29,7 @@ module_param(ieee80211_default_rc_algo, charp, 0644);
 MODULE_PARM_DESC(ieee80211_default_rc_algo,
 		 "Default rate control algorithm for mac80211 to use");
 
-int ieee80211_rate_control_register(struct rate_control_ops *ops)
+int ieee80211_rate_control_register(const struct rate_control_ops *ops)
 {
 	struct rate_control_alg *alg;
 
@@ -60,7 +60,7 @@ int ieee80211_rate_control_register(struct rate_control_ops *ops)
 }
 EXPORT_SYMBOL(ieee80211_rate_control_register);
 
-void ieee80211_rate_control_unregister(struct rate_control_ops *ops)
+void ieee80211_rate_control_unregister(const struct rate_control_ops *ops)
 {
 	struct rate_control_alg *alg;
 
@@ -76,11 +76,11 @@ void ieee80211_rate_control_unregister(struct rate_control_ops *ops)
 }
 EXPORT_SYMBOL(ieee80211_rate_control_unregister);
 
-static struct rate_control_ops *
+static const struct rate_control_ops *
 ieee80211_try_rate_control_ops_get(const char *name)
 {
 	struct rate_control_alg *alg;
-	struct rate_control_ops *ops = NULL;
+	const struct rate_control_ops *ops = NULL;
 
 	if (!name)
 		return NULL;
@@ -98,10 +98,10 @@ ieee80211_try_rate_control_ops_get(const char *name)
 }
 
 /* Get the rate control algorithm. */
-static struct rate_control_ops *
+static const struct rate_control_ops *
 ieee80211_rate_control_ops_get(const char *name)
 {
-	struct rate_control_ops *ops;
+	const struct rate_control_ops *ops;
 	const char *alg_name;
 
 	kparam_block_sysfs_write(ieee80211_default_rc_algo);
@@ -127,7 +127,7 @@ ieee80211_rate_control_ops_get(const char *name)
 	return ops;
 }
 
-static void ieee80211_rate_control_ops_put(struct rate_control_ops *ops)
+static void ieee80211_rate_control_ops_put(const struct rate_control_ops *ops)
 {
 	module_put(ops->module);
 }
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index b95e16c07081..9aa2a1190a86 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -21,7 +21,7 @@
 
 struct rate_control_ref {
 	struct ieee80211_local *local;
-	struct rate_control_ops *ops;
+	const struct rate_control_ops *ops;
 	void *priv;
 };
 
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index f3d88b0c054c..26fd94fa0aed 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -657,7 +657,7 @@ minstrel_free(void *priv)
 	kfree(priv);
 }
 
-struct rate_control_ops mac80211_minstrel = {
+const struct rate_control_ops mac80211_minstrel = {
 	.name = "minstrel",
 	.tx_status = minstrel_tx_status,
 	.get_rate = minstrel_get_rate,
diff --git a/net/mac80211/rc80211_minstrel.h b/net/mac80211/rc80211_minstrel.h
index f4301f4b2e41..046d1bd598a8 100644
--- a/net/mac80211/rc80211_minstrel.h
+++ b/net/mac80211/rc80211_minstrel.h
@@ -123,7 +123,7 @@ struct minstrel_debugfs_info {
 	char buf[];
 };
 
-extern struct rate_control_ops mac80211_minstrel;
+extern const struct rate_control_ops mac80211_minstrel;
 void minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
 void minstrel_remove_sta_debugfs(void *priv, void *priv_sta);
 
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index c1b5b73c5b91..a6d6cc5c3db4 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -1031,7 +1031,7 @@ minstrel_ht_free(void *priv)
 	mac80211_minstrel.free(priv);
 }
 
-static struct rate_control_ops mac80211_minstrel_ht = {
+static const struct rate_control_ops mac80211_minstrel_ht = {
 	.name = "minstrel_ht",
 	.tx_status = minstrel_ht_tx_status,
 	.get_rate = minstrel_ht_get_rate,
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index 958fad07b54c..d0da2a70fe68 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -452,7 +452,7 @@ static void rate_control_pid_free_sta(void *priv, struct ieee80211_sta *sta,
 	kfree(priv_sta);
 }
 
-static struct rate_control_ops mac80211_rcpid = {
+static const struct rate_control_ops mac80211_rcpid = {
 	.name = "pid",
 	.tx_status = rate_control_pid_tx_status,
 	.get_rate = rate_control_pid_get_rate,