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[PATCH] iwl4965: fix scan problem 

This patch fixes the following problems for 4965:
1. Fix direct scan by make sure we set one_direct_scan only when the
   mac80211 ask for direct scan.
2. Fix mac_stop and mac_remove_interface calles, we make sure we cancel any
   scan and disassoc on these call.

Signed-off-by: Mohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Mohamed Abbas 2007-10-25 17:15:45 +08:00 committed by John W. Linville
parent 052c4b9f0a
commit 948c171cfe
1 changed files with 28 additions and 4 deletions
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32
drivers/net/wireless/iwlwifi/iwl4965-base.c
View File

@ -6966,7 +6966,7 @@ static void iwl_bg_request_scan(struct work_struct *data)
memcpy(scan->direct_scan[0].ssid,
priv->direct_ssid, priv->direct_ssid_len);
direct_mask = 1;
} else if (!iwl_is_associated(priv)) {
} else if (!iwl_is_associated(priv) && priv->essid_len) {
scan->direct_scan[0].id = WLAN_EID_SSID;
scan->direct_scan[0].len = priv->essid_len;
memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len);
@ -7119,6 +7119,10 @@ static void iwl_bg_post_associate(struct work_struct *data)
mutex_lock(&priv->mutex);
if (!priv->interface_id || !priv->is_open) {
mutex_unlock(&priv->mutex);
return;
}
iwl_scan_cancel_timeout(priv, 200);
conf = ieee80211_get_hw_conf(priv->hw);
@ -7274,9 +7278,19 @@ static void iwl_mac_stop(struct ieee80211_hw *hw)
struct iwl_priv *priv = hw->priv;
IWL_DEBUG_MAC80211("enter\n");
mutex_lock(&priv->mutex);
/* stop mac, cancel any scan request and clear
* RXON_FILTER_ASSOC_MSK BIT
*/
priv->is_open = 0;
/*netif_stop_queue(dev); */
flush_workqueue(priv->workqueue);
iwl_scan_cancel_timeout(priv, 100);
cancel_delayed_work(&priv->post_associate);
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
iwl_commit_rxon(priv);
mutex_unlock(&priv->mutex);
IWL_DEBUG_MAC80211("leave\n");
}
@ -7623,6 +7637,12 @@ static void iwl_mac_remove_interface(struct ieee80211_hw *hw,
IWL_DEBUG_MAC80211("enter\n");
mutex_lock(&priv->mutex);
iwl_scan_cancel_timeout(priv, 100);
cancel_delayed_work(&priv->post_associate);
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
iwl_commit_rxon(priv);
if (priv->interface_id == conf->if_id) {
priv->interface_id = 0;
memset(priv->bssid, 0, ETH_ALEN);
@ -7675,7 +7695,8 @@ static int iwl_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
priv->direct_ssid_len = (u8)
min((u8) len, (u8) IW_ESSID_MAX_SIZE);
memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
}
} else
priv->one_direct_scan = 0;
rc = iwl_scan_initiate(priv);
@ -9168,6 +9189,9 @@ static void iwl_pci_remove(struct pci_dev *pdev)
iwl_rate_control_unregister(priv->hw);
}
/*netif_stop_queue(dev); */
flush_workqueue(priv->workqueue);
/* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
* priv->workqueue... so we can't take down the workqueue
* until now... */