iwlwifi: dvm: remove command/return value from RX handlers

After the previous patches, the command that's passed in nor the
return value are used any more, so can be removed.

While at it, make some functions static.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c
index 275df12..bddd197 100644
--- a/drivers/net/wireless/iwlwifi/dvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/tx.c
@@ -1128,8 +1128,7 @@
 	}
 }
 
-int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb,
-			       struct iwl_device_cmd *cmd)
+void iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb)
 {
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
 	u16 sequence = le16_to_cpu(pkt->hdr.sequence);
@@ -1273,8 +1272,6 @@
 		skb = __skb_dequeue(&skbs);
 		ieee80211_tx_status(priv->hw, skb);
 	}
-
-	return 0;
 }
 
 /**
@@ -1283,9 +1280,8 @@
  * Handles block-acknowledge notification from device, which reports success
  * of frames sent via aggregation.
  */
-int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
-				   struct iwl_rx_cmd_buffer *rxb,
-				   struct iwl_device_cmd *cmd)
+void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
+				   struct iwl_rx_cmd_buffer *rxb)
 {
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
 	struct iwl_compressed_ba_resp *ba_resp = (void *)pkt->data;
@@ -1306,7 +1302,7 @@
 	if (scd_flow >= priv->cfg->base_params->num_of_queues) {
 		IWL_ERR(priv,
 			"BUG_ON scd_flow is bigger than number of queues\n");
-		return 0;
+		return;
 	}
 
 	sta_id = ba_resp->sta_id;
@@ -1319,7 +1315,7 @@
 		if (unlikely(ba_resp->bitmap))
 			IWL_ERR(priv, "Received BA when not expected\n");
 		spin_unlock_bh(&priv->sta_lock);
-		return 0;
+		return;
 	}
 
 	if (unlikely(scd_flow != agg->txq_id)) {
@@ -1333,7 +1329,7 @@
 				    "Bad queue mapping txq_id=%d, agg_txq[sta:%d,tid:%d]=%d\n",
 				    scd_flow, sta_id, tid, agg->txq_id);
 		spin_unlock_bh(&priv->sta_lock);
-		return 0;
+		return;
 	}
 
 	__skb_queue_head_init(&reclaimed_skbs);
@@ -1413,6 +1409,4 @@
 		skb = __skb_dequeue(&reclaimed_skbs);
 		ieee80211_tx_status(priv->hw, skb);
 	}
-
-	return 0;
 }