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iwlwifi: use sync commands for keys 

Key management can use sync commands
instead of asynchronous ones to have
better error checking.

Also add checks that the commands all
should have the mutex held.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
This commit is contained in:
Johannes Berg 2010-06-14 08:32:24 -07:00 committed by Reinette Chatre
parent 4620fefa59
commit e666674eec
1 changed files with 18 additions and 11 deletions
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29
drivers/net/wireless/iwlwifi/iwl-sta.c
View File

@ -834,7 +834,9 @@ static int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv,
{
unsigned long flags;
__le16 key_flags = 0;
int ret;
struct iwl_addsta_cmd sta_cmd;
lockdep_assert_held(&priv->mutex);
keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
@ -874,11 +876,10 @@ static int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv,
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_addsta_cmd));
spin_unlock_irqrestore(&priv->sta_lock, flags);
return ret;
return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC);
}
static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
@ -887,7 +888,9 @@ static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
{
unsigned long flags;
__le16 key_flags = 0;
int ret;
struct iwl_addsta_cmd sta_cmd;
lockdep_assert_held(&priv->mutex);
key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
@ -922,11 +925,10 @@ static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_addsta_cmd));
spin_unlock_irqrestore(&priv->sta_lock, flags);
return ret;
return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC);
}
static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv,
@ -1016,9 +1018,11 @@ int iwl_remove_dynamic_key(struct iwl_priv *priv,
u8 sta_id)
{
unsigned long flags;
int ret = 0;
u16 key_flags;
u8 keyidx;
struct iwl_addsta_cmd sta_cmd;
lockdep_assert_held(&priv->mutex);
priv->key_mapping_key--;
@ -1065,9 +1069,10 @@ int iwl_remove_dynamic_key(struct iwl_priv *priv,
spin_unlock_irqrestore(&priv->sta_lock, flags);
return 0;
}
ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_addsta_cmd));
spin_unlock_irqrestore(&priv->sta_lock, flags);
return ret;
return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC);
}
EXPORT_SYMBOL(iwl_remove_dynamic_key);
@ -1076,6 +1081,8 @@ int iwl_set_dynamic_key(struct iwl_priv *priv,
{
int ret;
lockdep_assert_held(&priv->mutex);
priv->key_mapping_key++;
keyconf->hw_key_idx = HW_KEY_DYNAMIC;