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path: root/drivers/net/wireless/iwlegacy/iwl-scan.c
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Diffstat (limited to 'drivers/net/wireless/iwlegacy/iwl-scan.c')
-rw-r--r--drivers/net/wireless/iwlegacy/iwl-scan.c92
1 files changed, 8 insertions, 84 deletions
diff --git a/drivers/net/wireless/iwlegacy/iwl-scan.c b/drivers/net/wireless/iwlegacy/iwl-scan.c
index 353234a02c6d..a6b5222fc59e 100644
--- a/drivers/net/wireless/iwlegacy/iwl-scan.c
+++ b/drivers/net/wireless/iwlegacy/iwl-scan.c
@@ -101,7 +101,6 @@ static void iwl_legacy_complete_scan(struct iwl_priv *priv, bool aborted)
ieee80211_scan_completed(priv->hw, aborted);
}
- priv->is_internal_short_scan = false;
priv->scan_vif = NULL;
priv->scan_request = NULL;
}
@@ -329,10 +328,8 @@ void iwl_legacy_init_scan_params(struct iwl_priv *priv)
}
EXPORT_SYMBOL(iwl_legacy_init_scan_params);
-static int __must_check iwl_legacy_scan_initiate(struct iwl_priv *priv,
- struct ieee80211_vif *vif,
- bool internal,
- enum ieee80211_band band)
+static int iwl_legacy_scan_initiate(struct iwl_priv *priv,
+ struct ieee80211_vif *vif)
{
int ret;
@@ -359,18 +356,14 @@ static int __must_check iwl_legacy_scan_initiate(struct iwl_priv *priv,
return -EBUSY;
}
- IWL_DEBUG_SCAN(priv, "Starting %sscan...\n",
- internal ? "internal short " : "");
+ IWL_DEBUG_SCAN(priv, "Starting scan...\n");
set_bit(STATUS_SCANNING, &priv->status);
- priv->is_internal_short_scan = internal;
priv->scan_start = jiffies;
- priv->scan_band = band;
ret = priv->cfg->ops->utils->request_scan(priv, vif);
if (ret) {
clear_bit(STATUS_SCANNING, &priv->status);
- priv->is_internal_short_scan = false;
return ret;
}
@@ -394,8 +387,7 @@ int iwl_legacy_mac_hw_scan(struct ieee80211_hw *hw,
mutex_lock(&priv->mutex);
- if (test_bit(STATUS_SCANNING, &priv->status) &&
- !priv->is_internal_short_scan) {
+ if (test_bit(STATUS_SCANNING, &priv->status)) {
IWL_DEBUG_SCAN(priv, "Scan already in progress.\n");
ret = -EAGAIN;
goto out_unlock;
@@ -404,17 +396,9 @@ int iwl_legacy_mac_hw_scan(struct ieee80211_hw *hw,
/* mac80211 will only ask for one band at a time */
priv->scan_request = req;
priv->scan_vif = vif;
+ priv->scan_band = req->channels[0]->band;
- /*
- * If an internal scan is in progress, just set
- * up the scan_request as per above.
- */
- if (priv->is_internal_short_scan) {
- IWL_DEBUG_SCAN(priv, "SCAN request during internal scan\n");
- ret = 0;
- } else
- ret = iwl_legacy_scan_initiate(priv, vif, false,
- req->channels[0]->band);
+ ret = iwl_legacy_scan_initiate(priv, vif);
IWL_DEBUG_MAC80211(priv, "leave\n");
@@ -425,40 +409,6 @@ out_unlock:
}
EXPORT_SYMBOL(iwl_legacy_mac_hw_scan);
-/*
- * internal short scan, this function should only been called while associated.
- * It will reset and tune the radio to prevent possible RF related problem
- */
-void iwl_legacy_internal_short_hw_scan(struct iwl_priv *priv)
-{
- queue_work(priv->workqueue, &priv->start_internal_scan);
-}
-
-static void iwl_legacy_bg_start_internal_scan(struct work_struct *work)
-{
- struct iwl_priv *priv =
- container_of(work, struct iwl_priv, start_internal_scan);
-
- IWL_DEBUG_SCAN(priv, "Start internal scan\n");
-
- mutex_lock(&priv->mutex);
-
- if (priv->is_internal_short_scan == true) {
- IWL_DEBUG_SCAN(priv, "Internal scan already in progress\n");
- goto unlock;
- }
-
- if (test_bit(STATUS_SCANNING, &priv->status)) {
- IWL_DEBUG_SCAN(priv, "Scan already in progress.\n");
- goto unlock;
- }
-
- if (iwl_legacy_scan_initiate(priv, NULL, true, priv->band))
- IWL_DEBUG_SCAN(priv, "failed to start internal short scan\n");
- unlock:
- mutex_unlock(&priv->mutex);
-}
-
static void iwl_legacy_bg_scan_check(struct work_struct *data)
{
struct iwl_priv *priv =
@@ -542,8 +492,7 @@ static void iwl_legacy_bg_scan_completed(struct work_struct *work)
container_of(work, struct iwl_priv, scan_completed);
bool aborted;
- IWL_DEBUG_SCAN(priv, "Completed %sscan.\n",
- priv->is_internal_short_scan ? "internal short " : "");
+ IWL_DEBUG_SCAN(priv, "Completed scan.\n");
cancel_delayed_work(&priv->scan_check);
@@ -558,27 +507,6 @@ static void iwl_legacy_bg_scan_completed(struct work_struct *work)
goto out_settings;
}
- if (priv->is_internal_short_scan && !aborted) {
- int err;
-
- /* Check if mac80211 requested scan during our internal scan */
- if (priv->scan_request == NULL)
- goto out_complete;
-
- /* If so request a new scan */
- err = iwl_legacy_scan_initiate(priv, priv->scan_vif, false,
- priv->scan_request->channels[0]->band);
- if (err) {
- IWL_DEBUG_SCAN(priv,
- "failed to initiate pending scan: %d\n", err);
- aborted = true;
- goto out_complete;
- }
-
- goto out;
- }
-
-out_complete:
iwl_legacy_complete_scan(priv, aborted);
out_settings:
@@ -590,8 +518,7 @@ out_settings:
* We do not commit power settings while scan is pending,
* do it now if the settings changed.
*/
- iwl_legacy_power_set_mode(priv, &priv->power_data.sleep_cmd_next,
- false);
+ iwl_legacy_power_set_mode(priv, &priv->power_data.sleep_cmd_next, false);
iwl_legacy_set_tx_power(priv, priv->tx_power_next, false);
priv->cfg->ops->utils->post_scan(priv);
@@ -604,15 +531,12 @@ void iwl_legacy_setup_scan_deferred_work(struct iwl_priv *priv)
{
INIT_WORK(&priv->scan_completed, iwl_legacy_bg_scan_completed);
INIT_WORK(&priv->abort_scan, iwl_legacy_bg_abort_scan);
- INIT_WORK(&priv->start_internal_scan,
- iwl_legacy_bg_start_internal_scan);
INIT_DELAYED_WORK(&priv->scan_check, iwl_legacy_bg_scan_check);
}
EXPORT_SYMBOL(iwl_legacy_setup_scan_deferred_work);
void iwl_legacy_cancel_scan_deferred_work(struct iwl_priv *priv)
{
- cancel_work_sync(&priv->start_internal_scan);
cancel_work_sync(&priv->abort_scan);
cancel_work_sync(&priv->scan_completed);