[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>

4 files changed, 5 insertions, 108 deletions

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index cc87e9d988f8..7b5cc146c81b 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/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. */
diff --git a/net/mac80211/ieee80211_iface.c b/net/mac80211/ieee80211_iface.c
index 3e59afa23e4e..8bb85f194385 100644
--- a/net/mac80211/ieee80211_iface.c
+++ b/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;
                 }
         }
diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/ieee80211_ioctl.c
index 380670c7a0ca..dc05bc66fbb8 100644
--- a/net/mac80211/ieee80211_ioctl.c
+++ b/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)
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 7e10c692c4ad..a1f766fcf966 100644
--- a/net/mac80211/sta_info.c
+++ b/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;
         }