iwlwifi: allocate Tx cmd pool per device

Different transports will have different needs: New tranports
need headroom for their own use before the Tx cmd. So allocate
the Tx cmd pool in the transport and give it a unique name
based on dev_name.

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

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c
index 7fdbd175c551..7e3bd6281551 100644
--- a/drivers/net/wireless/iwlwifi/dvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/tx.c
@@ -295,7 +295,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
         struct iwl_station_priv *sta_priv = NULL;
         struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-        struct iwl_device_cmd *dev_cmd = NULL;
+        struct iwl_device_cmd *dev_cmd;
         struct iwl_tx_cmd *tx_cmd;
         __le16 fc;
         u8 hdr_len;
@@ -377,7 +377,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
         if (info->flags & IEEE80211_TX_CTL_AMPDU)
                 is_agg = true;
 
-        dev_cmd = kmem_cache_alloc(iwl_tx_cmd_pool, GFP_ATOMIC);
+        dev_cmd = iwl_trans_alloc_tx_cmd(priv->trans);
 
         if (unlikely(!dev_cmd))
                 goto drop_unlock_priv;
@@ -492,7 +492,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 
 drop_unlock_sta:
         if (dev_cmd)
-                kmem_cache_free(iwl_tx_cmd_pool, dev_cmd);
+                iwl_trans_free_tx_cmd(priv->trans, dev_cmd);
         spin_unlock(&priv->sta_lock);
 drop_unlock_priv:
         return -1;
@@ -1193,8 +1193,8 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb,
 
                         info = IEEE80211_SKB_CB(skb);
                         ctx = info->driver_data[0];
-                        kmem_cache_free(iwl_tx_cmd_pool,
-                                        (info->driver_data[1]));
+                        iwl_trans_free_tx_cmd(priv->trans,
+                                              info->driver_data[1]);
 
                         memset(&info->status, 0, sizeof(info->status));
 
@@ -1357,7 +1357,7 @@ int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
                         WARN_ON_ONCE(1);
 
                 info = IEEE80211_SKB_CB(skb);
-                kmem_cache_free(iwl_tx_cmd_pool, (info->driver_data[1]));
+                iwl_trans_free_tx_cmd(priv->trans, info->driver_data[1]);
 
                 if (freed == 1) {
                         /* this is the first skb we deliver in this batch */