[MAC80211] key handling: remove default_wep_only

Remove the default_wep_only stuff, this wasn't really done well
and no current driver actually cares.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/mac80211.h

@@ -632,8 +632,7 @@ struct ieee80211_ops {
 	 * selected by the low-level driver.
 	 */
 	int (*set_key)(struct ieee80211_hw *hw, set_key_cmd cmd,
-		       u8 *address, struct ieee80211_key_conf *key,
-		       int static_wep_only);
+		       u8 *address, struct ieee80211_key_conf *key);
 
 	/*
 	 * Set TX key index for default/broadcast keys. This is needed in cases

net/mac80211/ieee80211_i.h

@@ -551,9 +551,6 @@ struct ieee80211_local {
 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
 
 
-	int default_wep_only; /* only default WEP keys are used with this
-			       * interface; this is used to decide when hwaccel
-			       * can be used with default keys */
 	int total_ps_buffered; /* total number of all buffered unicast and
 				* multicast packets for power saving stations
 				*/
@@ -733,8 +730,6 @@ void ieee80211_key_threshold_notify(struct net_device *dev,
 /* ieee80211_ioctl.c */
 extern const struct iw_handler_def ieee80211_iw_handler_def;
 
-void ieee80211_update_default_wep_only(struct ieee80211_local *local);
-
 
 /* Least common multiple of the used rates (in 100 kbps). This is used to
  * calculate rate_inv values for each rate so that only integers are needed. */

net/mac80211/ieee80211_iface.c

@@ -88,8 +88,6 @@ int ieee80211_if_add(struct net_device *dev, const char *name,
 		*new_dev = ndev;
 	write_unlock_bh(&local->sub_if_lock);
 
-	ieee80211_update_default_wep_only(local);
-
 	return 0;
 
 fail:
@@ -154,7 +152,6 @@ void ieee80211_if_del_mgmt(struct ieee80211_local *local)
 void ieee80211_if_set_type(struct net_device *dev, int type)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	int oldtype = sdata->type;
 
 	dev->hard_start_xmit = ieee80211_subif_start_xmit;
@@ -205,7 +202,6 @@ void ieee80211_if_set_type(struct net_device *dev, int type)
 		       dev->name, __FUNCTION__, type);
 	}
 	ieee80211_debugfs_change_if_type(sdata, oldtype);
-	ieee80211_update_default_wep_only(local);
 }
 
 /* Must be called with rtnl lock held. */
@@ -336,7 +332,6 @@ int ieee80211_if_remove(struct net_device *dev, const char *name, int id)
 			list_del(&sdata->list);
 			write_unlock_bh(&local->sub_if_lock);
 			__ieee80211_if_del(local, sdata);
-			ieee80211_update_default_wep_only(local);
 			return 0;
 		}
 	}

net/mac80211/ieee80211_ioctl.c

@@ -40,7 +40,7 @@ static void ieee80211_set_hw_encryption(struct net_device *dev,
 
 	if (key && local->ops->set_key) {
 		if (local->ops->set_key(local_to_hw(local), SET_KEY, addr,
-					&key->conf, local->default_wep_only)) {
+					&key->conf)) {
 			key->conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
 			key->conf.hw_key_idx = HW_KEY_IDX_INVALID;
 		}
@@ -111,7 +111,7 @@ static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
 	 * possibility of conflict with default keys. This can maybe later be
 	 * optimized by using non-default keys (at least with Atheros ar521x).
 	 */
-	if (!sta && alg == ALG_WEP && !local->default_wep_only &&
+	if (!sta && alg == ALG_WEP &&
 	    sdata->type != IEEE80211_IF_TYPE_IBSS &&
 	    sdata->type != IEEE80211_IF_TYPE_AP) {
 		try_hwaccel = 0;
@@ -148,8 +148,7 @@ static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
 		    key->conf.hw_key_idx != HW_KEY_IDX_INVALID &&
 		    local->ops->set_key &&
 		    local->ops->set_key(local_to_hw(local), DISABLE_KEY,
-					sta_addr, &key->conf,
-					local->default_wep_only)) {
+					sta_addr, &key->conf)) {
 			printk(KERN_DEBUG "%s: set_encrypt - low-level disable"
 			       " failed\n", dev->name);
 			ret = -EINVAL;
@@ -924,96 +923,6 @@ static int ieee80211_ioctl_giwretry(struct net_device *dev,
 	return 0;
 }
 
-static void ieee80211_key_enable_hwaccel(struct ieee80211_local *local,
-					 struct ieee80211_key *key)
-{
-	u8 addr[ETH_ALEN];
-
-	if (!key || key->conf.alg != ALG_WEP ||
-	    !(key->conf.flags & IEEE80211_KEY_FORCE_SW_ENCRYPT) ||
-	    (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
-		return;
-
-	memset(addr, 0xff, ETH_ALEN);
-
-	if (local->ops->set_key)
-	    local->ops->set_key(local_to_hw(local),
-				SET_KEY, addr, &key->conf,
-				local->default_wep_only);
-}
-
-
-static void ieee80211_key_disable_hwaccel(struct ieee80211_local *local,
-					  struct ieee80211_key *key)
-{
-	u8 addr[ETH_ALEN];
-
-	if (!key || key->conf.alg != ALG_WEP ||
-	    (key->conf.flags & IEEE80211_KEY_FORCE_SW_ENCRYPT) ||
-	    (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
-		return;
-
-	memset(addr, 0xff, ETH_ALEN);
-	if (local->ops->set_key)
-		local->ops->set_key(local_to_hw(local), DISABLE_KEY,
-				    addr, &key->conf,
-				    local->default_wep_only);
-	key->conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
-}
-
-
-static int ieee80211_ioctl_default_wep_only(struct ieee80211_local *local,
-					    int value)
-{
-	int i;
-	struct ieee80211_sub_if_data *sdata;
-
-	local->default_wep_only = value;
-	read_lock(&local->sub_if_lock);
-	list_for_each_entry(sdata, &local->sub_if_list, list)
-		for (i = 0; i < NUM_DEFAULT_KEYS; i++)
-			if (value)
-				ieee80211_key_enable_hwaccel(local,
-							     sdata->keys[i]);
-			else
-				ieee80211_key_disable_hwaccel(local,
-							      sdata->keys[i]);
-	read_unlock(&local->sub_if_lock);
-
-	return 0;
-}
-
-
-void ieee80211_update_default_wep_only(struct ieee80211_local *local)
-{
-	int i = 0;
-	struct ieee80211_sub_if_data *sdata;
-
-	read_lock(&local->sub_if_lock);
-	list_for_each_entry(sdata, &local->sub_if_list, list) {
-
-		if (sdata->dev == local->mdev)
-			continue;
-
-		/* If there is an AP interface then depend on userspace to
-		   set default_wep_only correctly. */
-		if (sdata->type == IEEE80211_IF_TYPE_AP) {
-			read_unlock(&local->sub_if_lock);
-			return;
-		}
-
-		i++;
-	}
-
-	read_unlock(&local->sub_if_lock);
-
-	if (i <= 1)
-		ieee80211_ioctl_default_wep_only(local, 1);
-	else
-		ieee80211_ioctl_default_wep_only(local, 0);
-}
-
-
 static int ieee80211_ioctl_prism2_param(struct net_device *dev,
 					struct iw_request_info *info,
 					void *wrqu, char *extra)

net/mac80211/sta_info.c

@@ -230,8 +230,7 @@ void sta_info_free(struct sta_info *sta)
 		if (local->ops->set_key) {
 			local->ops->set_key(local_to_hw(local),
 					   DISABLE_KEY, sta->addr,
-					   &sta->key->conf,
-					   local->default_wep_only);
+					   &sta->key->conf);
 		}
 	} else if (sta->key_idx_compression != HW_KEY_IDX_INVALID) {
 		struct ieee80211_key_conf conf;
@@ -240,8 +239,7 @@ void sta_info_free(struct sta_info *sta)
 		conf.alg = ALG_NONE;
 		conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
 		local->ops->set_key(local_to_hw(local), DISABLE_KEY,
-				    sta->addr, &conf,
-				    local->default_wep_only);
+				    sta->addr, &conf);
 		sta->key_idx_compression = HW_KEY_IDX_INVALID;
 	}