[MAC80211]: remove fake set_key() call

Remove adding a fake key with a NONE key algorithm for each
associated STA. If we have hardware with such TX filtering
we should probably extend the sta_table_notification()
callback with the sta information instead; the fact that
it's treated as a key for some atheros hardware shouldn't
bother the stack.

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, 1 insertions, 27 deletions

diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index da34ea70276f..2daaa802bbd0 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -60,7 +60,6 @@ static const struct file_operations sta_ ##name## _ops = {		\
                 STA_OPS(name)
 
 STA_FILE(aid, aid, D);
-STA_FILE(key_idx_compression, key_idx_compression, D);
 STA_FILE(dev, dev->name, S);
 STA_FILE(vlan_id, vlan_id, D);
 STA_FILE(rx_packets, rx_packets, LU);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index a1f766fcf966..fba2d79e4d2b 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -165,7 +165,6 @@ struct sta_info * sta_info_add(struct ieee80211_local *local,
                 local->ops->sta_table_notification(local_to_hw(local),
                                                   local->num_sta);
         write_unlock_bh(&local->sta_lock);
-        sta->key_idx_compression = HW_KEY_IDX_INVALID;
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
         printk(KERN_DEBUG "%s: Added STA " MAC_FMT "\n",
@@ -226,23 +225,6 @@ void sta_info_free(struct sta_info *sta)
                 dev_kfree_skb(skb);
         }
 
-        if (sta->key) {
-                if (local->ops->set_key) {
-                        local->ops->set_key(local_to_hw(local),
-                                           DISABLE_KEY, sta->addr,
-                                           &sta->key->conf);
-                }
-        } else if (sta->key_idx_compression != HW_KEY_IDX_INVALID) {
-                struct ieee80211_key_conf conf;
-                memset(&conf, 0, sizeof(conf));
-                conf.hw_key_idx = sta->key_idx_compression;
-                conf.alg = ALG_NONE;
-                conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
-                local->ops->set_key(local_to_hw(local), DISABLE_KEY,
-                                    sta->addr, &conf);
-                sta->key_idx_compression = HW_KEY_IDX_INVALID;
-        }
-
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
         printk(KERN_DEBUG "%s: Removed STA " MAC_FMT "\n",
                local->mdev->name, MAC_ARG(sta->addr));
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 4afa7df2a180..3b0fcb255717 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -90,10 +90,6 @@ struct sta_info {
         int channel_use;
         int channel_use_raw;
 
-        int key_idx_compression; /* key table index for compression and TX
-                                  * filtering; used only if sta->key is not
-                                  * set */
-
         int assoc_ap; /* whether this is an AP that we are
                        * associated with as a client */
 
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 684f928def93..d70140cbd66a 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -426,10 +426,7 @@ ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx)
 static ieee80211_txrx_result
 ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx)
 {
-        if (tx->sta)
-                tx->u.tx.control->key_idx = tx->sta->key_idx_compression;
-        else
-                tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
+        tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
 
         if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
                 tx->key = NULL;