mwifiex: kill useless list_empty checks

There's absolutely no reason to check to see if a list is empty
before iterating through it.  It's just like writing code like
this:

if (count != 0) {
  for (i = 0; i < count; i++) {
     ...
  }
}

The loop will already be avoided if "count == 0" so there was no
reason to check.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/marvell/mwifiex/11n.c b/drivers/net/wireless/marvell/mwifiex/11n.c
index 7252069..8772e39 100644 (file)
--- a/drivers/net/wireless/marvell/mwifiex/11n.c
+++ b/drivers/net/wireless/marvell/mwifiex/11n.c
@@ -658,12 +658,6 @@ void mwifiex_11n_delba(struct mwifiex_private *priv, int tid)
        unsigned long flags;
 
        spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
-       if (list_empty(&priv->rx_reorder_tbl_ptr)) {
-               dev_dbg(priv->adapter->dev,
-                       "mwifiex_11n_delba: rx_reorder_tbl_ptr empty\n");
-               goto exit;
-       }
-
        list_for_each_entry(rx_reor_tbl_ptr, &priv->rx_reorder_tbl_ptr, list) {
                if (rx_reor_tbl_ptr->tid == tid) {
                        dev_dbg(priv->adapter->dev,
@@ -854,9 +848,6 @@ mwifiex_send_delba_txbastream_tbl(struct mwifiex_private *priv, u8 tid)
        struct mwifiex_adapter *adapter = priv->adapter;
        struct mwifiex_tx_ba_stream_tbl *tx_ba_stream_tbl_ptr;
 
-       if (list_empty(&priv->tx_ba_stream_tbl_ptr))
-               return;
-
        list_for_each_entry(tx_ba_stream_tbl_ptr,
                            &priv->tx_ba_stream_tbl_ptr, list) {
                if (tx_ba_stream_tbl_ptr->ba_status == BA_SETUP_COMPLETE) {

diff --git a/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c b/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c
index 274dd5a..d87df2d 100644 (file)
--- a/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c
+++ b/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c
@@ -835,12 +835,6 @@ void mwifiex_update_rxreor_flags(struct mwifiex_adapter *adapter, u8 flags)
                        continue;
 
                spin_lock_irqsave(&priv->rx_reorder_tbl_lock, lock_flags);
-               if (list_empty(&priv->rx_reorder_tbl_ptr)) {
-                       spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock,
-                                              lock_flags);
-                       continue;
-               }
-
                list_for_each_entry(tbl, &priv->rx_reorder_tbl_ptr, list)
                        tbl->flags = flags;
                spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, lock_flags);

diff --git a/drivers/net/wireless/marvell/mwifiex/init.c b/drivers/net/wireless/marvell/mwifiex/init.c
index e11919d..1176706 100644 (file)
--- a/drivers/net/wireless/marvell/mwifiex/init.c
+++ b/drivers/net/wireless/marvell/mwifiex/init.c
@@ -579,10 +579,6 @@ static void mwifiex_delete_bss_prio_tbl(struct mwifiex_private *priv)
 
                {
                        spin_lock_irqsave(lock, flags);
-                       if (list_empty(head)) {
-                               spin_unlock_irqrestore(lock, flags);
-                               continue;
-                       }
                        list_for_each_entry_safe(bssprio_node, tmp_node, head,
                                                 list) {
                                if (bssprio_node->priv == priv) {

diff --git a/drivers/net/wireless/marvell/mwifiex/tdls.c b/drivers/net/wireless/marvell/mwifiex/tdls.c
index e76af28..9fe0bae 100644 (file)
--- a/drivers/net/wireless/marvell/mwifiex/tdls.c
+++ b/drivers/net/wireless/marvell/mwifiex/tdls.c
@@ -1413,13 +1413,6 @@ void mwifiex_check_auto_tdls(unsigned long context)
 
        priv->check_tdls_tx = false;
 
-       if (list_empty(&priv->auto_tdls_list)) {
-               mod_timer(&priv->auto_tdls_timer,
-                         jiffies +
-                         msecs_to_jiffies(MWIFIEX_TIMER_10S));
-               return;
-       }
-
        spin_lock_irqsave(&priv->auto_tdls_lock, flags);
        list_for_each_entry(tdls_peer, &priv->auto_tdls_list, list) {
                if ((jiffies - tdls_peer->rssi_jiffies) >