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-rw-r--r--drivers/net/wireless/mwifiex/cfg80211.c8
-rw-r--r--drivers/net/wireless/mwifiex/init.c1
-rw-r--r--drivers/net/wireless/mwifiex/main.c96
-rw-r--r--drivers/net/wireless/mwifiex/main.h10
-rw-r--r--drivers/net/wireless/mwifiex/scan.c59
5 files changed, 30 insertions, 144 deletions
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index 2066abbccee6..0dd672954ad1 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -1936,13 +1936,6 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy,
wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
- if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
- atomic_read(&priv->wmm.tx_pkts_queued) >=
- MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
- dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
- return -EBUSY;
- }
-
/* Block scan request if scan operation or scan cleanup when interface
* is disabled is in process
*/
@@ -2920,7 +2913,6 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
wiphy->features |= NL80211_FEATURE_HT_IBSS |
NL80211_FEATURE_INACTIVITY_TIMER |
- NL80211_FEATURE_LOW_PRIORITY_SCAN |
NL80211_FEATURE_NEED_OBSS_SCAN;
/* Reserve space for mwifiex specific private data for BSS */
diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index d99c6f64f854..cd9baad60595 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -281,7 +281,6 @@ static void mwifiex_init_adapter(struct mwifiex_adapter *adapter)
memset(&adapter->arp_filter, 0, sizeof(adapter->arp_filter));
adapter->arp_filter_size = 0;
adapter->max_mgmt_ie_index = MAX_MGMT_IE_INDEX;
- adapter->empty_tx_q_cnt = 0;
adapter->ext_scan = true;
adapter->key_api_major_ver = 0;
adapter->key_api_minor_ver = 0;
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index d6d2342ffbac..f1393868d04c 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -28,91 +28,6 @@ const char driver_version[] = "mwifiex " VERSION " (%s) ";
static char *cal_data_cfg;
module_param(cal_data_cfg, charp, 0);
-static void scan_delay_timer_fn(unsigned long data)
-{
- struct mwifiex_private *priv = (struct mwifiex_private *)data;
- struct mwifiex_adapter *adapter = priv->adapter;
- struct cmd_ctrl_node *cmd_node, *tmp_node;
- spinlock_t *scan_q_lock = &adapter->scan_pending_q_lock;
- unsigned long flags;
-
- if (adapter->surprise_removed)
- return;
-
- if (adapter->scan_delay_cnt == MWIFIEX_MAX_SCAN_DELAY_CNT ||
- !adapter->scan_processing) {
- /*
- * Abort scan operation by cancelling all pending scan
- * commands
- */
- spin_lock_irqsave(scan_q_lock, flags);
- list_for_each_entry_safe(cmd_node, tmp_node,
- &adapter->scan_pending_q, list) {
- list_del(&cmd_node->list);
- mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
- }
- spin_unlock_irqrestore(scan_q_lock, flags);
-
- spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
- adapter->scan_processing = false;
- adapter->scan_delay_cnt = 0;
- adapter->empty_tx_q_cnt = 0;
- spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
-
- if (priv->scan_request) {
- dev_dbg(adapter->dev, "info: aborting scan\n");
- cfg80211_scan_done(priv->scan_request, 1);
- priv->scan_request = NULL;
- } else {
- priv->scan_aborting = false;
- dev_dbg(adapter->dev, "info: scan already aborted\n");
- }
- goto done;
- }
-
- if (!atomic_read(&priv->adapter->is_tx_received)) {
- adapter->empty_tx_q_cnt++;
- if (adapter->empty_tx_q_cnt == MWIFIEX_MAX_EMPTY_TX_Q_CNT) {
- /*
- * No Tx traffic for 200msec. Get scan command from
- * scan pending queue and put to cmd pending queue to
- * resume scan operation
- */
- adapter->scan_delay_cnt = 0;
- adapter->empty_tx_q_cnt = 0;
- spin_lock_irqsave(scan_q_lock, flags);
-
- if (list_empty(&adapter->scan_pending_q)) {
- spin_unlock_irqrestore(scan_q_lock, flags);
- goto done;
- }
-
- cmd_node = list_first_entry(&adapter->scan_pending_q,
- struct cmd_ctrl_node, list);
- list_del(&cmd_node->list);
- spin_unlock_irqrestore(scan_q_lock, flags);
-
- mwifiex_insert_cmd_to_pending_q(adapter, cmd_node,
- true);
- queue_work(adapter->workqueue, &adapter->main_work);
- goto done;
- }
- } else {
- adapter->empty_tx_q_cnt = 0;
- }
-
- /* Delay scan operation further by 20msec */
- mod_timer(&priv->scan_delay_timer, jiffies +
- msecs_to_jiffies(MWIFIEX_SCAN_DELAY_MSEC));
- adapter->scan_delay_cnt++;
-
-done:
- if (atomic_read(&priv->adapter->is_tx_received))
- atomic_set(&priv->adapter->is_tx_received, false);
-
- return;
-}
-
/*
* This function registers the device and performs all the necessary
* initializations.
@@ -160,10 +75,6 @@ static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
adapter->priv[i]->adapter = adapter;
adapter->priv_num++;
-
- setup_timer(&adapter->priv[i]->scan_delay_timer,
- scan_delay_timer_fn,
- (unsigned long)adapter->priv[i]);
}
mwifiex_init_lock_list(adapter);
@@ -207,7 +118,6 @@ static int mwifiex_unregister(struct mwifiex_adapter *adapter)
for (i = 0; i < adapter->priv_num; i++) {
if (adapter->priv[i]) {
mwifiex_free_curr_bcn(adapter->priv[i]);
- del_timer_sync(&adapter->priv[i]->scan_delay_timer);
kfree(adapter->priv[i]);
}
}
@@ -285,7 +195,6 @@ process_start:
break;
if ((!adapter->scan_chan_gap_enabled &&
- !adapter->scan_delay_cnt &&
adapter->scan_processing) || adapter->data_sent ||
mwifiex_wmm_lists_empty(adapter)) {
if (adapter->cmd_sent || adapter->curr_cmd ||
@@ -341,7 +250,7 @@ process_start:
}
if ((adapter->scan_chan_gap_enabled ||
- (!adapter->scan_processing || adapter->scan_delay_cnt)) &&
+ !adapter->scan_processing) &&
!adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) {
mwifiex_wmm_process_tx(adapter);
if (adapter->hs_activated) {
@@ -600,9 +509,6 @@ int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb)
atomic_inc(&priv->adapter->tx_pending);
mwifiex_wmm_add_buf_txqueue(priv, skb);
- if (priv->adapter->scan_delay_cnt)
- atomic_set(&priv->adapter->is_tx_received, true);
-
queue_work(priv->adapter->workqueue, &priv->adapter->main_work);
return 0;
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 651fd8cc4c7f..e9cd4ab4902d 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -90,12 +90,6 @@ enum {
#define MWIFIEX_MAX_TOTAL_SCAN_TIME (MWIFIEX_TIMER_10S - MWIFIEX_TIMER_1S)
-#define MWIFIEX_MAX_SCAN_DELAY_CNT 50
-#define MWIFIEX_MAX_EMPTY_TX_Q_CNT 10
-#define MWIFIEX_SCAN_DELAY_MSEC 20
-
-#define MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN 2
-
#define RSN_GTK_OUI_OFFSET 2
#define MWIFIEX_OUI_NOT_PRESENT 0
@@ -561,7 +555,6 @@ struct mwifiex_private {
u16 proberesp_idx;
u16 assocresp_idx;
u16 rsn_idx;
- struct timer_list scan_delay_timer;
u8 ap_11n_enabled;
u8 ap_11ac_enabled;
u32 mgmt_frame_mask;
@@ -816,8 +809,6 @@ struct mwifiex_adapter {
spinlock_t queue_lock; /* lock for tx queues */
u8 country_code[IEEE80211_COUNTRY_STRING_LEN];
u16 max_mgmt_ie_index;
- u8 scan_delay_cnt;
- u8 empty_tx_q_cnt;
const struct firmware *cal_data;
struct device_node *dt_node;
@@ -829,7 +820,6 @@ struct mwifiex_adapter {
u32 usr_dot_11ac_dev_cap_a;
u32 usr_dot_11ac_mcs_support;
- atomic_t is_tx_received;
atomic_t pending_bridged_pkts;
struct semaphore *card_sem;
bool ext_scan;
diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index 2d1a2471fae3..c09ebeee6ddf 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -1766,7 +1766,7 @@ static void mwifiex_complete_scan(struct mwifiex_private *priv)
static void mwifiex_check_next_scan_command(struct mwifiex_private *priv)
{
struct mwifiex_adapter *adapter = priv->adapter;
- struct cmd_ctrl_node *cmd_node;
+ struct cmd_ctrl_node *cmd_node, *tmp_node;
unsigned long flags;
spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
@@ -1787,37 +1787,36 @@ static void mwifiex_check_next_scan_command(struct mwifiex_private *priv)
priv->scan_aborting = false;
dev_dbg(adapter->dev, "info: scan already aborted\n");
}
- } else {
- if ((priv->scan_aborting && !priv->scan_request) ||
- priv->scan_block) {
- spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
- flags);
- adapter->scan_delay_cnt = MWIFIEX_MAX_SCAN_DELAY_CNT;
- mod_timer(&priv->scan_delay_timer, jiffies);
- dev_dbg(priv->adapter->dev,
- "info: %s: triggerring scan abort\n", __func__);
- } else if (!mwifiex_wmm_lists_empty(adapter) &&
- (priv->scan_request && (priv->scan_request->flags &
- NL80211_SCAN_FLAG_LOW_PRIORITY))) {
- spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
- flags);
- adapter->scan_delay_cnt = 1;
- mod_timer(&priv->scan_delay_timer, jiffies +
- msecs_to_jiffies(MWIFIEX_SCAN_DELAY_MSEC));
- dev_dbg(priv->adapter->dev,
- "info: %s: deferring scan\n", __func__);
- } else {
- /* Get scan command from scan_pending_q and put to
- * cmd_pending_q
- */
- cmd_node = list_first_entry(&adapter->scan_pending_q,
- struct cmd_ctrl_node, list);
+ } else if ((priv->scan_aborting && !priv->scan_request) ||
+ priv->scan_block) {
+ list_for_each_entry_safe(cmd_node, tmp_node,
+ &adapter->scan_pending_q, list) {
list_del(&cmd_node->list);
- spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
- flags);
- mwifiex_insert_cmd_to_pending_q(adapter, cmd_node,
- true);
+ mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
+ }
+ spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
+
+ spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
+ adapter->scan_processing = false;
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
+
+ if (priv->scan_request) {
+ dev_dbg(adapter->dev, "info: aborting scan\n");
+ cfg80211_scan_done(priv->scan_request, 1);
+ priv->scan_request = NULL;
+ } else {
+ priv->scan_aborting = false;
+ dev_dbg(adapter->dev, "info: scan already aborted\n");
}
+ } else {
+ /* Get scan command from scan_pending_q and put to
+ * cmd_pending_q
+ */
+ cmd_node = list_first_entry(&adapter->scan_pending_q,
+ struct cmd_ctrl_node, list);
+ list_del(&cmd_node->list);
+ spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
+ mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true);
}
return;