iwlagn: remove unused pad argument

The pad argument to iwlagn_txq_free_tfd
isn't used, remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index d34e103..9acf0e9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -750,10 +750,10 @@
 	spin_unlock(&priv->sta_lock);
 
 	/* Attach buffers to TFD */
-	iwlagn_txq_attach_buf_to_tfd(priv, txq, txcmd_phys, firstlen, 1, 0);
+	iwlagn_txq_attach_buf_to_tfd(priv, txq, txcmd_phys, firstlen, 1);
 	if (secondlen > 0)
 		iwlagn_txq_attach_buf_to_tfd(priv, txq, phys_addr,
-					     secondlen, 0, 0);
+					     secondlen, 0);
 
 	scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) +
 				offsetof(struct iwl_tx_cmd, scratch);