linux-kernel - [26/34] iwlwifi: clear all the stop

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Date:	Mon, 24 May 2010 15:59:58 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Wey-Yi Guy <wey-yi.w.guy@...el.com>,
	Reinette Chatre <reinette.chatre@...el.com>
Subject: [26/34] iwlwifi: clear all the stop_queue flag after load firmware

2.6.34-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Wey-Yi Guy <wey-yi.w.guy@...el.com>

commit a9e10fb9b1c6ad16e73cf2656951fce3a817611e upstream.

All the queues are awake and ready to use after loading firmware,
for firmware reload case, if any queues was stopped before
reload, mac80211 will wake those queues after restart hardware, so make
sure all the flag used to keep track of the queue status are
reset correctly.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@...el.com>
Signed-off-by: Reinette Chatre <reinette.chatre@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -581,6 +581,11 @@ static int iwl4965_alive_notify(struct iwl_priv *priv)
 
 	iwl4965_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0);
 
+	/* make sure all queue are not stopped */
+	memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped));
+	for (i = 0; i < 4; i++)
+		atomic_set(&priv->queue_stop_count[i], 0);
+
 	/* reset to 0 to enable all the queue first */
 	priv->txq_ctx_active_msk = 0;
 	/* Map each Tx/cmd queue to its corresponding fifo */
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index a7fa1ad..94fc836 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -648,6 +648,11 @@ int iwl5000_alive_notify(struct iwl_priv *priv)
 
 	iwl5000_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0);
 
+	/* make sure all queue are not stopped */
+	memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped));
+	for (i = 0; i < 4; i++)
+		atomic_set(&priv->queue_stop_count[i], 0);
+
 	/* reset to 0 to enable all the queue first */
 	priv->txq_ctx_active_msk = 0;
 	/* map qos queues to fifos one-to-one */


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