openwrtv4/package/kernel/mac80211/patches/020-11-rt2x00-separte-clearing-entry-from-rt2x00lib_txdone.patch

From 56646adf9cd60b488ddc5633a2d9aa1f30efa5db Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Wed, 15 Feb 2017 10:25:07 +0100
Subject: [PATCH 11/19] rt2x00: separte clearing entry from rt2x00lib_txdone

This makes rt2x00lib_txdone a bit simpler and will allow to reuse
code in different variant of txdone which I'm preparing.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ralink/rt2x00/rt2x00dev.c | 51 +++++++++++++++-----------
 1 file changed, 29 insertions(+), 22 deletions(-)

--- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
@@ -391,6 +391,32 @@ static void rt2x00lib_fill_tx_status(str
 	}
 }
 
+static void rt2x00lib_clear_entry(struct rt2x00_dev *rt2x00dev,
+				  struct queue_entry *entry)
+{
+	/*
+	 * Make this entry available for reuse.
+	 */
+	entry->skb = NULL;
+	entry->flags = 0;
+
+	rt2x00dev->ops->lib->clear_entry(entry);
+
+	rt2x00queue_index_inc(entry, Q_INDEX_DONE);
+
+	/*
+	 * If the data queue was below the threshold before the txdone
+	 * handler we must make sure the packet queue in the mac80211 stack
+	 * is reenabled when the txdone handler has finished. This has to be
+	 * serialized with rt2x00mac_tx(), otherwise we can wake up queue
+	 * before it was stopped.
+	 */
+	spin_lock_bh(&entry->queue->tx_lock);
+	if (!rt2x00queue_threshold(entry->queue))
+		rt2x00queue_unpause_queue(entry->queue);
+	spin_unlock_bh(&entry->queue->tx_lock);
+}
+
 void rt2x00lib_txdone(struct queue_entry *entry,
 		      struct txdone_entry_desc *txdesc)
 {
@@ -471,30 +497,11 @@ void rt2x00lib_txdone(struct queue_entry
 			ieee80211_tx_status(rt2x00dev->hw, entry->skb);
 		else
 			ieee80211_tx_status_ni(rt2x00dev->hw, entry->skb);
-	} else
+	} else {
 		dev_kfree_skb_any(entry->skb);
+	}
 
-	/*
-	 * Make this entry available for reuse.
-	 */
-	entry->skb = NULL;
-	entry->flags = 0;
-
-	rt2x00dev->ops->lib->clear_entry(entry);
-
-	rt2x00queue_index_inc(entry, Q_INDEX_DONE);
-
-	/*
-	 * If the data queue was below the threshold before the txdone
-	 * handler we must make sure the packet queue in the mac80211 stack
-	 * is reenabled when the txdone handler has finished. This has to be
-	 * serialized with rt2x00mac_tx(), otherwise we can wake up queue
-	 * before it was stopped.
-	 */
-	spin_lock_bh(&entry->queue->tx_lock);
-	if (!rt2x00queue_threshold(entry->queue))
-		rt2x00queue_unpause_queue(entry->queue);
-	spin_unlock_bh(&entry->queue->tx_lock);
+	rt2x00lib_clear_entry(rt2x00dev, entry);
 }
 EXPORT_SYMBOL_GPL(rt2x00lib_txdone);