mac80211: remove outdated comment

[safe/jmp/linux-2.6] / net / mac80211 / key.c

diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 827ea8e..659a42d 100644 (file)
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -67,6 +67,8 @@ static DECLARE_WORK(todo_work, key_todo);
  *
  * @key: key to add to do item for
  * @flag: todo flag(s)
+ *
+ * Must be called with IRQs or softirqs disabled.
  */
 static void add_todo(struct ieee80211_key *key, u32 flag)
 {
@@ -140,9 +142,9 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
        ret = drv_set_key(key->local, SET_KEY, &sdata->vif, sta, &key->conf);
 
        if (!ret) {
-               spin_lock(&todo_lock);
+               spin_lock_bh(&todo_lock);
                key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
-               spin_unlock(&todo_lock);
+               spin_unlock_bh(&todo_lock);
        }
 
        if (ret && ret != -ENOSPC && ret != -EOPNOTSUPP)
@@ -164,12 +166,12 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
        if (!key || !key->local->ops->set_key)
                return;
 
-       spin_lock(&todo_lock);
+       spin_lock_bh(&todo_lock);
        if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) {
-               spin_unlock(&todo_lock);
+               spin_unlock_bh(&todo_lock);
                return;
        }
-       spin_unlock(&todo_lock);
+       spin_unlock_bh(&todo_lock);
 
        sta = get_sta_for_key(key);
        sdata = key->sdata;
@@ -188,9 +190,9 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
                       wiphy_name(key->local->hw.wiphy),
                       key->conf.keyidx, sta ? sta->addr : bcast_addr, ret);
 
-       spin_lock(&todo_lock);
+       spin_lock_bh(&todo_lock);
        key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE;
-       spin_unlock(&todo_lock);
+       spin_unlock_bh(&todo_lock);
 }
 
 static void __ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata,
@@ -320,7 +322,7 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
        case ALG_TKIP:
                key->conf.iv_len = TKIP_IV_LEN;
                key->conf.icv_len = TKIP_ICV_LEN;
-               if (seq && seq_len == 6) {
+               if (seq) {
                        for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
                                key->u.tkip.rx[i].iv32 =
                                        get_unaligned_le32(&seq[2]);
@@ -332,7 +334,7 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
        case ALG_CCMP:
                key->conf.iv_len = CCMP_HDR_LEN;
                key->conf.icv_len = CCMP_MIC_LEN;
-               if (seq && seq_len == CCMP_PN_LEN) {
+               if (seq) {
                        for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
                                for (j = 0; j < CCMP_PN_LEN; j++)
                                        key->u.ccmp.rx_pn[i][j] =
@@ -342,7 +344,7 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
        case ALG_AES_CMAC:
                key->conf.iv_len = 0;
                key->conf.icv_len = sizeof(struct ieee80211_mmie);
-               if (seq && seq_len == 6)
+               if (seq)
                        for (j = 0; j < 6; j++)
                                key->u.aes_cmac.rx_pn[j] = seq[6 - j - 1];
                break;
@@ -437,14 +439,14 @@ void ieee80211_key_link(struct ieee80211_key *key,
 
        __ieee80211_key_replace(sdata, sta, old_key, key);
 
-       spin_unlock_irqrestore(&sdata->local->key_lock, flags);
-
        /* free old key later */
        add_todo(old_key, KEY_FLAG_TODO_DELETE);
 
        add_todo(key, KEY_FLAG_TODO_ADD_DEBUGFS);
        if (netif_running(sdata->dev))
                add_todo(key, KEY_FLAG_TODO_HWACCEL_ADD);
+
+       spin_unlock_irqrestore(&sdata->local->key_lock, flags);
 }
 
 static void __ieee80211_key_free(struct ieee80211_key *key)
@@ -547,7 +549,7 @@ static void __ieee80211_key_todo(void)
         */
        synchronize_rcu();
 
-       spin_lock(&todo_lock);
+       spin_lock_bh(&todo_lock);
        while (!list_empty(&todo_list)) {
                key = list_first_entry(&todo_list, struct ieee80211_key, todo);
                list_del_init(&key->todo);
@@ -558,7 +560,7 @@ static void __ieee80211_key_todo(void)
                                          KEY_FLAG_TODO_HWACCEL_REMOVE |
                                          KEY_FLAG_TODO_DELETE);
                key->flags &= ~todoflags;
-               spin_unlock(&todo_lock);
+               spin_unlock_bh(&todo_lock);
 
                work_done = false;
 
@@ -591,9 +593,9 @@ static void __ieee80211_key_todo(void)
 
                WARN_ON(!work_done);
 
-               spin_lock(&todo_lock);
+               spin_lock_bh(&todo_lock);
        }
-       spin_unlock(&todo_lock);
+       spin_unlock_bh(&todo_lock);
 }
 
 void ieee80211_key_todo(void)