diff options
| author | Henry Zhangh <hongx.c.zhang@intel.com> | 2010-01-22 14:22:44 -0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-01-25 16:36:20 -0500 |
| commit | 220575f78fb0b8d2a1c41cd28115d52ae8d132ee (patch) | |
| tree | c73f41cfeeb7c2e28bf826d750570b0382a4b4ed | |
| parent | afbdd69af0e6a0c40676d4d4b94a0a4414708eaa (diff) | |
iwlwifi: Fix A band scanning when associated
This patch allows A band to be scanned when driver is associated to AP.
Scan mechanism is that mac80211/cfg80211 requests driver to scan G band
first and then immediately to scan A band. Original code require
driver to wait for 2 seconds after any scan before another scan will be
performed. This caused driver to service G band scan request from
mac80211/cfg80211 but deny the A band scan request.
Signed-off-by: Henry Zhangh <hongx.c.zhang@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-dev.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-scan.c | 17 |
2 files changed, 2 insertions, 16 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 502d7a6b090..42cf1810b45 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -1072,7 +1072,6 @@ struct iwl_priv { struct iwl_calib_result calib_results[IWL_CALIB_MAX]; /* Scan related variables */ - unsigned long last_scan_jiffies; unsigned long next_scan_jiffies; unsigned long scan_start; unsigned long scan_pass_start; diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index fd6bafbddfc..07fabbbfd56 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -192,18 +192,15 @@ static void iwl_rx_scan_results_notif(struct iwl_priv *priv, IWL_DEBUG_SCAN(priv, "Scan ch.res: " "%d [802.11%s] " "(TSF: 0x%08X:%08X) - %d " - "elapsed=%lu usec (%dms since last)\n", + "elapsed=%lu usec\n", notif->channel, notif->band ? "bg" : "a", le32_to_cpu(notif->tsf_high), le32_to_cpu(notif->tsf_low), le32_to_cpu(notif->statistics[0]), - le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf, - jiffies_to_msecs(elapsed_jiffies - (priv->last_scan_jiffies, jiffies))); + le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf); #endif - priv->last_scan_jiffies = jiffies; priv->next_scan_jiffies = 0; } @@ -250,7 +247,6 @@ static void iwl_rx_scan_complete_notif(struct iwl_priv *priv, goto reschedule; } - priv->last_scan_jiffies = jiffies; priv->next_scan_jiffies = 0; IWL_DEBUG_INFO(priv, "Setting scan to off\n"); @@ -528,15 +524,6 @@ int iwl_mac_hw_scan(struct ieee80211_hw *hw, goto out_unlock; } - /* if we just finished scan ask for delay */ - if (iwl_is_associated(priv) && priv->last_scan_jiffies && - time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN, jiffies)) { - IWL_DEBUG_SCAN(priv, "scan rejected: within previous scan period\n"); - queue_work(priv->workqueue, &priv->scan_completed); - ret = 0; - goto out_unlock; - } - priv->scan_bands = 0; for (i = 0; i < req->n_channels; i++) priv->scan_bands |= BIT(req->channels[i]->band); |