iwlwifi/iwl3945: fix suspend resume association bug

Patch fixes the following bugs at
http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=2005
http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=2007

If we suspend with an association and then resumed,
we need to synchronize the active rxon with staging rxon,
else we will get an error when iwl_alive_start try to commit
rxon and staging is set to channel 0. Before going to suspend
staging and active rxon are in sync. After resuming from the
suspend, iwl_mac_start is called and it clears the staging
rxon. Patch fixes the bug by not clearing the staging rxon
in iwl_mac_start.

Patch also adds similar fix to 3945.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index a5637c4..6d1519e 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2152,7 +2152,6 @@ static int iwl_mac_start(struct ieee80211_hw *hw)
        /* we should be verifying the device is ready to be opened */
        mutex_lock(&priv->mutex);
 
-       memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd));
        /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
         * ucode filename and max sizes are card-specific. */
 

diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 83d3160..cb9bd4c 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -2498,8 +2498,7 @@ static void iwl3945_alive_start(struct iwl_priv *priv)
                struct iwl3945_rxon_cmd *active_rxon =
                                (struct iwl3945_rxon_cmd *)(&priv->active_rxon);
 
-               memcpy(&priv->staging_rxon, &priv->active_rxon,
-                      sizeof(priv->staging_rxon));
+               priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
                active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
        } else {
                /* Initialize our rx_config data */
@@ -3147,7 +3146,6 @@ static int iwl3945_mac_start(struct ieee80211_hw *hw)
        /* we should be verifying the device is ready to be opened */
        mutex_lock(&priv->mutex);
 
-       memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
        /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
         * ucode filename and max sizes are card-specific. */