From e4c064728ca358622918fa69ab2bb05f5a2090a8 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Mon, 21 Jun 2010 14:23:47 -0700 Subject: [PATCH] iwlwifi: remove key information during device restart When there is a firmware error or the firmware is reloaded for some other reason we currently clear all station information, including keys associated with them. A problem is that we do not clear some other information regarding keys that are not stored in the station structs. The consequence of this is that when the device is reconfigured after the firmware reload we can, among other things, run out of key indices. This fixes: https://bugzilla.kernel.org/show_bug.cgi?id=16232 http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2221 Signed-off-by: Reinette Chatre Reviewed-by: Johannes Berg --- drivers/net/wireless/iwlwifi/iwl-sta.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.h b/drivers/net/wireless/iwlwifi/iwl-sta.h index c2a453a1a99..dc43ebd1f1f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.h +++ b/drivers/net/wireless/iwlwifi/iwl-sta.h @@ -97,6 +97,17 @@ static inline void iwl_clear_driver_stations(struct iwl_priv *priv) spin_lock_irqsave(&priv->sta_lock, flags); memset(priv->stations, 0, sizeof(priv->stations)); priv->num_stations = 0; + + /* + * Remove all key information that is not stored as part of station + * information since mac80211 may not have had a + * chance to remove all the keys. When device is reconfigured by + * mac80211 after an error all keys will be reconfigured. + */ + priv->ucode_key_table = 0; + priv->key_mapping_key = 0; + memset(priv->wep_keys, 0, sizeof(priv->wep_keys)); + spin_unlock_irqrestore(&priv->sta_lock, flags); } -- 2.20.1