iwlwifi: mvm: clarify stop_count, remove transport_stopped

The queue handling is a bit unclear - we have an array for
stop_count[IWL_MAX_HW_QUEUES] but indices really are the
mac80211 queue numbers. Change the array to be only of the
right size for mac80211 queues (IEEE80211_MAX_QUEUES) and
rename it to be clearer.

While at it, also remove the unused transport queue stop
bitmap in mvm.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

3 files changed, 6 insertions, 10 deletions

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index c958a7d0458d..21d606028ca6 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -244,10 +244,10 @@ static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm,
                         mvm->queue_to_mac80211[i] = i;
                 else
                         mvm->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE;
-                atomic_set(&mvm->queue_stop_count[i], 0);
         }
 
-        mvm->transport_queue_stop = 0;
+        for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
+                atomic_set(&mvm->mac80211_queue_stop_count[i], 0);
 
         mvm->ucode_loaded = true;
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index b529cf64a5b6..e292de96e09a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -562,9 +562,8 @@ struct iwl_mvm {
 
         struct mvm_statistics_rx rx_stats;
 
-        unsigned long transport_queue_stop;
         u8 queue_to_mac80211[IWL_MAX_HW_QUEUES];
-        atomic_t queue_stop_count[IWL_MAX_HW_QUEUES];
+        atomic_t mac80211_queue_stop_count[IEEE80211_MAX_QUEUES];
 
         const char *nvm_file_name;
         struct iwl_nvm_data *nvm_data;
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index d7ec07d48d98..87f278cc9b2c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -703,14 +703,13 @@ static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
         if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
                 return;
 
-        if (atomic_inc_return(&mvm->queue_stop_count[mq]) > 1) {
+        if (atomic_inc_return(&mvm->mac80211_queue_stop_count[mq]) > 1) {
                 IWL_DEBUG_TX_QUEUES(mvm,
                                     "queue %d (mac80211 %d) already stopped\n",
                                     queue, mq);
                 return;
         }
 
-        set_bit(mq, &mvm->transport_queue_stop);
         ieee80211_stop_queue(mvm->hw, mq);
 }
 
@@ -722,15 +721,13 @@ static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
         if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
                 return;
 
-        if (atomic_dec_return(&mvm->queue_stop_count[mq]) > 0) {
+        if (atomic_dec_return(&mvm->mac80211_queue_stop_count[mq]) > 0) {
                 IWL_DEBUG_TX_QUEUES(mvm,
-                                    "queue %d (mac80211 %d) already awake\n",
+                                    "queue %d (mac80211 %d) still stopped\n",
                                     queue, mq);
                 return;
         }
 
-        clear_bit(mq, &mvm->transport_queue_stop);
-
         ieee80211_wake_queue(mvm->hw, mq);
 }