1 files changed, 19 insertions, 9 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 84eb6ad3637..9bffe8438d1 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -27,6 +27,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/log2.h>
 
 #include "rt2x00.h"
 #include "rt2x00lib.h"
@@ -70,6 +71,7 @@ int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev)
          */
         rt2x00queue_start_queues(rt2x00dev);
         rt2x00link_start_tuner(rt2x00dev);
+        rt2x00link_start_agc(rt2x00dev);
 
         /*
          * Start watchdog monitoring.
@@ -92,6 +94,7 @@ void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev)
         /*
          * Stop all queues
          */
+        rt2x00link_stop_agc(rt2x00dev);
         rt2x00link_stop_tuner(rt2x00dev);
         rt2x00queue_stop_queues(rt2x00dev);
         rt2x00queue_flush_queues(rt2x00dev, true);
@@ -350,10 +353,14 @@ void rt2x00lib_txdone(struct queue_entry *entry,
          * which would allow the rc algorithm to better decide on
          * which rates are suitable.
          */
-        if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
+        if (test_bit(TXDONE_AMPDU, &txdesc->flags) ||
+            tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
                 tx_info->flags |= IEEE80211_TX_STAT_AMPDU;
                 tx_info->status.ampdu_len = 1;
                 tx_info->status.ampdu_ack_len = success ? 1 : 0;
+
+                if (!success)
+                        tx_info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
         }
 
         if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
@@ -511,8 +518,6 @@ void rt2x00lib_rxdone(struct queue_entry *entry)
                  (rxdesc.size > header_length) &&
                  (rxdesc.dev_flags & RXDONE_L2PAD))
                 rt2x00queue_remove_l2pad(entry->skb, header_length);
-        else
-                rt2x00queue_align_payload(entry->skb, header_length);
 
         /* Trim buffer to correct size */
         skb_trim(entry->skb, rxdesc.size);
@@ -811,13 +816,18 @@ static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev)
          */
         if (test_bit(DRIVER_REQUIRE_TXSTATUS_FIFO, &rt2x00dev->flags)) {
                 /*
-                 * Allocate txstatus fifo and tasklet, we use a size of 512
-                 * for the kfifo which is big enough to store 512/4=128 tx
-                 * status reports. In the worst case (tx status for all tx
-                 * queues gets reported before we've got a chance to handle
-                 * them) 24*4=384 tx status reports need to be cached.
+                 * Allocate the txstatus fifo. In the worst case the tx
+                 * status fifo has to hold the tx status of all entries
+                 * in all tx queues. Hence, calculate the kfifo size as
+                 * tx_queues * entry_num and round up to the nearest
+                 * power of 2.
                  */
-                status = kfifo_alloc(&rt2x00dev->txstatus_fifo, 512,
+                int kfifo_size =
+                        roundup_pow_of_two(rt2x00dev->ops->tx_queues *
+                                           rt2x00dev->ops->tx->entry_num *
+                                           sizeof(u32));
+
+                status = kfifo_alloc(&rt2x00dev->txstatus_fifo, kfifo_size,
                                      GFP_KERNEL);
                 if (status)
                         return status;