Merge branch 'wireless'

John W. Linville says:

====================
This is a small batch of fixes intended for the 3.8 stream...

There are two pulls from Johannes.  Regarding mac80211, Johannes says:

"One fix from Dan for a possible memory overrun."

Regarding iwlwifi,  Johannes says:

"I have one fix from Emmanuel reverting a previous fix that caused
more trouble than it's worth."

Along with those:

Arend van Spriel fixes a fatal error in brcsmac related to tx status processing.

Bing Zhao corrects a problem where mwifiex would fail to complete a scan
in the event of an IE processing error.

Larry Finger fixes a thinko in rtlwifi in which the wrong skb variable
was being used in some cases.

Rafał Miłecki fixes a thinko in an ID check in the bcma flash code.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 23 insertions, 39 deletions

diff --git a/drivers/net/wireless/brcm80211/brcmsmac/main.c b/drivers/net/wireless/brcm80211/brcmsmac/main.c
index 17594de4199e..9f3d7e9f3bb5 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/main.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/main.c
@@ -1027,7 +1027,6 @@ brcms_c_dotxstatus(struct brcms_c_info *wlc, struct tx_status *txs)
 static bool
 brcms_b_txstatus(struct brcms_hardware *wlc_hw, bool bound, bool *fatal)
 {
-	bool morepending = false;
 	struct bcma_device *core;
 	struct tx_status txstatus, *txs;
 	u32 s1, s2;
@@ -1041,23 +1040,20 @@ brcms_b_txstatus(struct brcms_hardware *wlc_hw, bool bound, bool *fatal)
 	txs = &txstatus;
 	core = wlc_hw->d11core;
 	*fatal = false;
-	s1 = bcma_read32(core, D11REGOFFS(frmtxstatus));
-	while (!(*fatal)
-	       && (s1 & TXS_V)) {
-		/* !give others some time to run! */
-		if (n >= max_tx_num) {
-			morepending = true;
-			break;
-		}
 
+	while (n < max_tx_num) {
+		s1 = bcma_read32(core, D11REGOFFS(frmtxstatus));
 		if (s1 == 0xffffffff) {
 			brcms_err(core, "wl%d: %s: dead chip\n", wlc_hw->unit,
 				  __func__);
 			*fatal = true;
 			return false;
 		}
-		s2 = bcma_read32(core, D11REGOFFS(frmtxstatus2));
+		/* only process when valid */
+		if (!(s1 & TXS_V))
+			break;
 
+		s2 = bcma_read32(core, D11REGOFFS(frmtxstatus2));
 		txs->status = s1 & TXS_STATUS_MASK;
 		txs->frameid = (s1 & TXS_FID_MASK) >> TXS_FID_SHIFT;
 		txs->sequence = s2 & TXS_SEQ_MASK;
@@ -1065,15 +1061,12 @@ brcms_b_txstatus(struct brcms_hardware *wlc_hw, bool bound, bool *fatal)
 		txs->lasttxtime = 0;
 
 		*fatal = brcms_c_dotxstatus(wlc_hw->wlc, txs);
-
-		s1 = bcma_read32(core, D11REGOFFS(frmtxstatus));
+		if (*fatal == true)
+			return false;
 		n++;
 	}
 
-	if (*fatal)
-		return false;
-
-	return morepending;
+	return n >= max_tx_num;
 }
 
 static void brcms_c_tbtt(struct brcms_c_info *wlc)
diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c
index 31534f7c0548..279796419ea0 100644
--- a/drivers/net/wireless/iwlwifi/dvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/tx.c
@@ -1153,6 +1153,13 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb,
 			next_reclaimed = ssn;
 		}
 
+		if (tid != IWL_TID_NON_QOS) {
+			priv->tid_data[sta_id][tid].next_reclaimed =
+				next_reclaimed;
+			IWL_DEBUG_TX_REPLY(priv, "Next reclaimed packet:%d\n",
+						  next_reclaimed);
+		}
+
 		iwl_trans_reclaim(priv->trans, txq_id, ssn, &skbs);
 
 		iwlagn_check_ratid_empty(priv, sta_id, tid);
@@ -1203,28 +1210,11 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb,
 			if (!is_agg)
 				iwlagn_non_agg_tx_status(priv, ctx, hdr->addr1);
 
-			/*
-			 * W/A for FW bug - the seq_ctl isn't updated when the
-			 * queues are flushed. Fetch it from the packet itself
-			 */
-			if (!is_agg && status == TX_STATUS_FAIL_FIFO_FLUSHED) {
-				next_reclaimed = le16_to_cpu(hdr->seq_ctrl);
-				next_reclaimed =
-					SEQ_TO_SN(next_reclaimed + 0x10);
-			}
-
 			is_offchannel_skb =
 				(info->flags & IEEE80211_TX_CTL_TX_OFFCHAN);
 			freed++;
 		}
 
-		if (tid != IWL_TID_NON_QOS) {
-			priv->tid_data[sta_id][tid].next_reclaimed =
-				next_reclaimed;
-			IWL_DEBUG_TX_REPLY(priv, "Next reclaimed packet:%d\n",
-					   next_reclaimed);
-		}
-
 		WARN_ON(!is_agg && freed != 1);
 
 		/*
diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index 9189a32b7844..973a9d90e9ea 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -1563,7 +1563,7 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 		dev_err(adapter->dev, "SCAN_RESP: too many AP returned (%d)\n",
 			scan_rsp->number_of_sets);
 		ret = -1;
-		goto done;
+		goto check_next_scan;
 	}
 
 	bytes_left = le16_to_cpu(scan_rsp->bss_descript_size);
@@ -1634,7 +1634,8 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 		if (!beacon_size || beacon_size > bytes_left) {
 			bss_info += bytes_left;
 			bytes_left = 0;
-			return -1;
+			ret = -1;
+			goto check_next_scan;
 		}
 
 		/* Initialize the current working beacon pointer for this BSS
@@ -1690,7 +1691,7 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 				dev_err(priv->adapter->dev,
 					"%s: bytes left < IE length\n",
 					__func__);
-				goto done;
+				goto check_next_scan;
 			}
 			if (element_id == WLAN_EID_DS_PARAMS) {
 				channel = *(current_ptr + sizeof(struct ieee_types_header));
@@ -1753,6 +1754,7 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 		}
 	}
 
+check_next_scan:
 	spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
 	if (list_empty(&adapter->scan_pending_q)) {
 		spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
@@ -1813,7 +1815,6 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 		}
 	}
 
-done:
 	return ret;
 }
 
diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c
index f2ecdeb3a90d..1535efda3d52 100644
--- a/drivers/net/wireless/rtlwifi/usb.c
+++ b/drivers/net/wireless/rtlwifi/usb.c
@@ -542,8 +542,8 @@ static void _rtl_rx_pre_process(struct ieee80211_hw *hw, struct sk_buff *skb)
 	WARN_ON(skb_queue_empty(&rx_queue));
 	while (!skb_queue_empty(&rx_queue)) {
 		_skb = skb_dequeue(&rx_queue);
-		_rtl_usb_rx_process_agg(hw, skb);
-		ieee80211_rx_irqsafe(hw, skb);
+		_rtl_usb_rx_process_agg(hw, _skb);
+		ieee80211_rx_irqsafe(hw, _skb);
 	}
 }